Metal bottom plate injection mold with cooling structure

Abstract

The utility model relates to the technical field of injection molds, and discloses a metal bottom plate injection mold with a cooling structure, which comprises a support base, a cooling base is fixedly mounted at the top end of the support base, a lower mold is mounted at the top end of the cooling base, and support frames are fixedly connected to two sides of the top end of the support base. First hydraulic cylinders are installed on the two sides of the bottom end in the supporting frame, and upper molds are installed at the output ends of the first hydraulic cylinders. According to the metal bottom plate injection mold with the cooling structure, the lower mold can be cooled and cooled through the cooling base, cooling liquid is injected into a cooling pipe from a water inlet pipe, the cooling liquid can rapidly conduct cold and dissipate heat for the lower mold when flowing in the cooling pipe, and meanwhile a second hydraulic cylinder pushes a heat dissipation frame to be attached to an upper mold; and the heat dissipation fan can conduct heat dissipation treatment on the upper mold, the structure conducts heat dissipation on the top and the bottom end of the mold at the same time, the heat dissipation and cooling efficiency is improved, and the problem that cooling and heat dissipation are inconvenient is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a metal bottom plate injection mold with a cooling structure. Background Art

[0002] Plastic mold is a combined plastic mold used in the plastic processing industry to match the plastic molding machine for compression molding, extrusion molding, injection molding, blow molding and low-foaming molding. It mainly includes a concave mold with a variable cavity composed of a concave mold combination base plate, a concave mold assembly and a concave mold combination card plate.

[0003] After searching, it is found that the injection mold needs to wait for the product to cool down during the injection molding process. However, common injection molds lack cooling structures when in use, and the products inside the mold can only be cooled naturally, which affects the processing efficiency. Some molds have a small cooling range and uneven cooling, which affects the quality of product molding.

[0004] There is an urgent need for a metal base plate injection mold with a cooling structure to solve the technical defects proposed in the above technology. Utility Model Content

[0005] The utility model aims to provide a metal bottom plate injection mold with a cooling structure to solve the problem of inconvenience in cooling and heat dissipation in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a metal bottom plate injection mold with a cooling structure, comprising a supporting base, a cooling base is fixedly installed on the top of the supporting base, a lower mold is installed on the top of the cooling base, two sides of the top of the supporting base are fixedly connected with a supporting frame, a first hydraulic cylinder is installed on both sides of the bottom end of the supporting frame, an upper mold is installed on the output end of the first hydraulic cylinder, a second hydraulic cylinder is installed at the middle position of the bottom end of the supporting frame, a heat sink is fixedly connected to the output end of the second hydraulic cylinder, a heat sink is installed at the bottom end of the heat sink, a supporting pad is fixedly connected to the two ends of the heat sink, a cooling pipe is installed inside the cooling base, a heat conducting plate is installed on the top of the cooling pipe, a water inlet pipe is installed on the left side of the front end of the cooling base, a water outlet pipe is installed on the right side of the front end of the cooling base, and an ejector plate is arranged inside the lower mold.

[0007] Preferably, the heat conducting plate is arranged on the top end of the cooling base, and the heat conducting plate is attached to the bottom end of the lower mold.

[0008] Preferably, the heat sink is arranged above the upper mold, and the support pad can fit with the top of the upper mold.

[0009] Preferably, both ends of the support pad are fixedly connected with installation buckles, and both sides of the protective net plate are embedded inside the installation buckles.

[0010] Preferably, a reserved groove is arranged at the bottom end inside the lower mold, an ejector rod is installed inside the reserved groove, a spring is installed outside the ejector rod, and the top end of the ejector rod is fixedly connected with the bottom end of the ejector plate.

[0011] Preferably, a sealing ring is fixedly connected to the outside of the ejector plate, and the outside of the sealing ring is closely attached to the inner wall of the lower mold.

[0012] Preferably, fixed seats are fixedly connected to both sides of the top end of the cooling base, a clamping lead screw is installed inside the fixed seats, a limiting plate is movably connected to the left side of the clamping lead screw, and the limiting plate is attached to the side of the lower mold.

[0013] Preferably, the clamping lead screw is in threaded connection with the fixed seat, and positioning insertion rods are fixedly connected to both sides of the bottom end of the upper mold.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The injection mold for a metal bottom plate with a cooling structure not only realizes the function of facilitating cooling and heat dissipation, realizes the function of facilitating material taking, but also realizes the function of facilitating removal and cleaning;

[0015] (1) By providing a cooling base, a heat conducting plate, a heat dissipation frame, a heat dissipation fan, a protective net plate and a cooling pipe, during the process of the product waiting for cooling and forming inside the mold, the cooling base can cool and dissipate heat from the lower mold. Inject the coolant from the water inlet pipe into the inside of the cooling pipe. When the coolant flows inside the cooling pipe, it can quickly conduct cold and dissipate heat from the lower mold. At the same time, the second hydraulic cylinder pushes the heat dissipation frame to fit on the upper mold, and the heat dissipation fan can dissipate heat from the upper mold. This structure dissipates heat from both the top and bottom of the mold simultaneously, improving the efficiency of heat dissipation and cooling;

[0016] (2) By providing a lower mold, an ejector plate, a reserved groove, a spring and an ejector rod, after the first hydraulic cylinder pushes the upper mold to move down and close with the lower mold, the molten liquid can be injected from the injection port, and then wait for cooling and forming. After forming, the upper mold moves away from the top of the lower mold. The ejector rod inside the lower mold can push the ejector plate upward, and the ejector plate facilitates ejecting the finished product inside the lower mold for convenient material taking. This structure realizes the function of facilitating material taking;

[0017] (3) By setting a limit plate, a lower mold, a fixed seat and a clamping screw rod, the lower mold can be placed on the cooling base and limited and clamped by the limit plate. When clamping, first hold the clamping screw rod and rotate it. The clamping screw rod pushes the limit plate to one side, and the limit plate fits with the side of the lower mold to clamp and limit it. When the lower mold needs to be cleaned and maintained, the limit plate can be removed and the lower mold can be taken off the cooling base. This structure realizes the function of being convenient to remove and clean. Brief Description of the Drawings

[0018] Figure 1 is a front view sectional structure schematic diagram of the present utility model;

[0019] Figure 2 is a front view sectional structure schematic diagram of the heat dissipation rack of the present utility model;

[0020] Figure 3 of the present utility model Figure 1 is an enlarged structure schematic diagram at A in;

[0021] Figure 4 is a front view structure schematic diagram of the limit plate of the present utility model.

[0022] In the figure: 1, support base; 2, cooling base; 3, water inlet pipe; 4, limit plate; 5, lower mold; 6, heat conduction plate; 7, upper mold; 8, first hydraulic cylinder; 9, heat dissipation rack; 10, second hydraulic cylinder; 11, support frame; 12, heat dissipation fan; 13, protective net plate; 14, positioning plug rod; 15, ejector plate; 16, reserved groove; 17, cooling pipe; 18, sealing ring; 19, water outlet pipe; 20, fixed seat; 21, installation buckle; 22, support pad; 23, spring; 24, ejector rod; 25, clamping screw rod. Specific Embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1: Please refer to Figures 1 - 4, an injection mold for a metal base plate with a cooling structure, including a support base 1. A cooling base 2 is fixedly installed at the top of the support base 1. A lower mold 5 is installed at the top of the cooling base 2. Both sides of the top of the support base 1 are fixedly connected with support frames 11. At both sides of the inner bottom end of the support frame 11, first hydraulic cylinders 8 are installed. The output ends of the first hydraulic cylinders 8 are installed with an upper mold 7. At the middle position of the inner bottom end of the support frame 11, a second hydraulic cylinder 10 is installed. The output end of the second hydraulic cylinder 10 is fixedly connected with a heat dissipation frame 9. A heat dissipation fan 12 is installed at the bottom end of the heat dissipation frame 9. At both sides of the bottom end of the heat dissipation frame 9, support pads 22 are fixedly connected. At both ends of the heat dissipation frame 9, protective net plates 13 are installed. A cooling pipe 17 is installed inside the cooling base 2. A heat conduction plate 6 is installed at the top end of the cooling pipe 17. A water inlet pipe 3 is installed on the left side of the front end of the cooling base 2. A water outlet pipe 19 is installed on the right side of the front end of the cooling base 2. An ejector plate 15 is arranged inside the lower mold 5;

[0025] The heat conduction plate 6 is arranged at the top of the cooling base 2. The heat conduction plate 6 is attached to the bottom end of the lower mold 5. The heat dissipation frame 9 is arranged above the upper mold 7. The support pads 22 can be attached to the top end of the upper mold 7. At both ends of the support pads 22, installation buckles 21 are fixedly connected. Both sides of the protective net plate 13 are embedded inside the installation buckles 21;

[0026] Specifically, as Figure 1 and Figure 2 shown, the cooling base 2 can cool and dissipate heat from the lower mold 5. Inject the coolant from the water inlet pipe 3 into the inside of the cooling pipe 17. When the coolant flows inside the cooling pipe 17, it can quickly conduct cold and dissipate heat from the lower mold 5. At the same time, the second hydraulic cylinder 10 pushes the heat dissipation frame 9 to fit on the upper mold 7, and the heat dissipation fan 12 can dissipate heat from the upper mold 7. This structure dissipates heat from both the top and bottom of the mold simultaneously.

[0027] Embodiment 2: A reserved groove 16 is arranged at the inner bottom end of the lower mold 5. A ejector rod 24 is installed inside the reserved groove 16. A spring 23 is installed outside the ejector rod 24. The top end of the ejector rod 24 is fixedly connected to the bottom end of the ejector plate 15. A sealing ring 18 is fixedly connected to the outside of the ejector plate 15. The outside of the sealing ring 18 is closely attached to the inner wall of the lower mold 5;

[0028] Specifically, as Figure 1 and Figure 3 shown, after the upper mold 7 moves down and closes with the lower mold 5, the molten liquid can be injected from the injection port. Then wait for cooling and forming. After forming, the upper mold 7 moves away from the top of the lower mold 5. The ejector rod 24 inside the lower mold 5 can push the ejector plate 15 upward. The ejector plate 15 is convenient for ejecting the finished product inside the lower mold 5 for easy material taking.

[0029] Embodiment 3: Fixed seats 20 are fixedly connected to both sides of the top end of the cooling base 2. A clamping screw rod 25 is installed inside the fixed seat 20. A limiting plate 4 is movably connected to the left side of the clamping screw rod 25. The limiting plate 4 is in contact with the side of the lower mold 5. The clamping screw rod 25 is threadedly connected to the fixed seat 20. Positioning insertion rods 14 are fixedly connected to both sides of the bottom end of the upper mold 7;

[0030] Specifically, as Figure 1 and Figure 4 shown, when the lower mold 5 is placed on the cooling base 2, the limiting plate 4 can be used to limit and clamp it. When clamping, first hold the clamping screw rod 25 and rotate it. The clamping screw rod 25 pushes the limiting plate 4 to one side. When the limiting plate 4 is in contact with the side of the lower mold 5, it can be clamped and limited. When the lower mold 5 needs to be cleaned and maintained, the limiting plate 4 can be moved away and the lower mold 5 can be removed from the cooling base 2.

[0031] Working principle: When the present utility model is in use, first place the lower mold 5 on the cooling base 2 for limit fixation. The first hydraulic cylinder 8 pushes the upper mold 7 downward. After the upper mold 7 moves downward and closes with the lower mold 5, molten liquid can be injected from the injection port. Then wait for cooling and molding. The cooling base 2 can cool and dissipate heat from the lower mold 5. Inject the coolant from the water inlet pipe 3 into the inside of the cooling pipe 17. When the coolant flows inside the cooling pipe 17, it can quickly conduct heat and dissipate heat from the lower mold 5. At the same time, the second hydraulic cylinder 10 pushes the heat dissipation frame 9 to fit on the upper mold 7, and the heat dissipation fan 12 can dissipate heat from the upper mold 7. This structure dissipates heat from both the top and bottom of the mold simultaneously. After molding, the upper mold 7 moves away from the top of the lower mold 5. The ejector rod 24 inside the lower mold 5 can push the ejector plate 15 upward. The ejector plate 15 is convenient for ejecting the finished product inside the lower mold 5 for convenient material taking. The limiting plate 4 is in contact with the side of the lower mold 5 to clamp and limit. When the lower mold 5 needs to be cleaned and maintained, the limiting plate 4 can be moved away and the lower mold 5 can be removed from the cooling base 2. This structure realizes the function of being convenient for removal and cleaning.

[0032] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above - mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non - restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A metal base plate injection mold with a cooling structure, comprising a support base (1), characterized in that: A cooling base (2) is fixedly mounted on the top of the support base (1), a lower mold (5) is mounted on the top of the cooling base (2), a support frame (11) is fixedly connected to both sides of the top of the support base (1), a first hydraulic cylinder (8) is mounted on both sides of the bottom of the support frame (11), an upper mold (7) is mounted on the output end of the first hydraulic cylinder (8), a second hydraulic cylinder (10) is mounted at the middle position of the bottom of the support frame (11), and a heat dissipation frame (9) is fixedly connected to the output end of the second hydraulic cylinder (10). A cooling fan (12) is installed at the bottom end of the heat dissipation frame (9), support pads (22) are fixedly connected to both sides of the bottom end of the heat dissipation frame (9), protective mesh plates (13) are installed at both ends of the heat dissipation frame (9), a cooling pipe (17) is installed inside the cooling base (2), a heat conducting plate (6) is installed at the top end of the cooling pipe (17), a water inlet pipe (3) is installed on the left side of the front end of the cooling base (2), a water outlet pipe (19) is installed on the right side of the front end of the cooling base (2), and an ejector plate (15) is arranged inside the lower mold (5).

2. The metal bottom plate injection mold with a cooling structure according to claim 1, characterized in that: The heat conducting plate (6) is arranged on the top end of the cooling base (2), and the heat conducting plate (6) is attached to the bottom end of the lower mold (5).

3. The metal bottom plate injection mold with a cooling structure according to claim 1, characterized in that: The heat dissipation frame (9) is arranged above the upper mold (7), and the support pad (22) can be fitted with the top end of the upper mold (7).

4. The metal bottom plate injection mold with a cooling structure according to claim 1, characterized in that: The two ends of the support pad (22) are fixedly connected with mounting buckles (21), and the two sides of the protective mesh plate (13) are embedded in the interior of the mounting buckles (21).

5. The metal bottom plate injection mold with a cooling structure according to claim 1, characterized in that: A reserved groove (16) is provided at the bottom end of the lower mold (5), an ejector rod (24) is installed inside the reserved groove (16), a spring (23) is installed outside the ejector rod (24), and the top end of the ejector rod (24) is fixedly connected to the bottom end of the ejector plate (15).

6. The metal bottom plate injection mold with a cooling structure according to claim 1, characterized in that: The outside of the ejection plate (15) is fixedly connected with a sealing ring (18), and the outside of the sealing ring (18) is tightly fitted with the inner wall of the lower mold (5).

7. The metal bottom plate injection mold with a cooling structure according to claim 1, characterized in that: The two sides of the top of the cooling base (2) are fixedly connected with a fixing seat (20), and a clamping screw (25) is installed inside the fixing seat (20). The left side of the clamping screw (25) is movably connected to a limit plate (4), and the limit plate (4) is in contact with the side of the lower mold (5).

8. The metal bottom plate injection mold with a cooling structure according to claim 7, characterized in that: The clamping screw rod (25) is threadedly connected to the fixing seat (20), and positioning rods (14) are fixedly connected to both sides of the bottom end of the upper mold (7).

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