A cooling assembly for injection molds

Abstract

This utility model discloses a cooling assembly for injection molds, relating to the field of injection mold technology. The assembly includes a workbench with an upper mold at its center. A lower mold is fixedly connected to the center of the top of the workbench, and the lower and upper molds are at the same level. A mounting frame is fixedly connected to the outer end of the lower mold near its center. A square nozzle frame is fixedly connected to the inner wall of the mounting frame. A liquid storage tank is fixedly connected to the center of the front end of the workbench. A delivery pipe is fixedly connected to the center of the top of the liquid storage tank near the lower mold, and the top of the delivery pipe is fixedly connected to the mounting frame. This utility model uses a micro pump and a connecting pipe to deliver coolant from the liquid storage tank to the square nozzle frame, spraying and cooling the lower mold body from multiple external directions. This effectively reduces the mold temperature, ensures the stability of the injection molding process, and thus guarantees product quality.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold cooling component. Background Technology

[0002] In the field of injection molding, the cooling efficiency of the mold directly affects product quality, production cycle and energy consumption costs. During the injection process, after the molten plastic is injected into the mold, it needs to be cooled and solidified quickly and evenly to ensure the product's dimensional accuracy, surface finish and internal structure stability.

[0003] When using injection molds, most rely on cooling channels inside the mold to carry away heat through circulating coolant. However, cooling through these channels increases the mold volume, and the coolant faces greater flow resistance in closed channels, resulting in limited heat exchange efficiency. Especially when the mold temperature is too high, relying solely on internal channels is insufficient to quickly reduce the overall temperature, extending the molding cycle. Furthermore, internal channels are difficult and costly to manufacture, and if they become blocked or leak, the mold must be disassembled for repair, further impacting production progress. To address these issues, the inventor proposes an injection mold cooling component to solve these problems. Utility Model Content

[0004] To address the issue that relying on internal cooling channels to cool the mold not only increases its volume but also incurs higher costs, the present invention aims to provide a cooling component for injection molds.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a cooling assembly for injection molds, including a worktable, an upper mold at the center of the upper part of the worktable, a lower mold fixedly connected to the center of the top of the worktable, and the lower mold and the upper mold being at the same level, an installation frame fixedly connected to the outer end of the lower mold near the center, a square nozzle bracket fixedly connected to the inner wall of the installation frame, a liquid storage tank fixedly connected to the center of the front end of the worktable, a delivery pipe fixedly connected to the center of the top of the liquid storage tank near the lower mold, and the top end of the delivery pipe fixedly connected to the installation frame, an L-shaped support shaft rotatably connected to the center of the top of the worktable near one side, and a spherical nozzle fixedly connected to the other end of the L-shaped support shaft.

[0006] Preferably, an L-shaped plate is fixedly connected to the center of the back end of the workbench, and an electric cylinder is fixedly connected to the top of the L-shaped plate near the center of one side, and the electric cylinder and the lower mold are on the same horizontal plane.

[0007] Preferably, the output end of the electric cylinder is fixedly connected to a U-shaped plate through the L-shaped plate, and the U-shaped plate is fixedly connected to the upper mold. An injection hole is opened at the top of the upper mold near the center.

[0008] Preferably, an installation plate is fixedly connected to the top of the L-shaped support shaft, and a liquid storage box is fixedly connected to the top of the installation plate. A micro pump is provided at one end of the liquid storage box near the bottom center. A connecting pipe is fixedly connected to one end of the micro pump, and the other end of the connecting pipe is fixedly connected to the spherical nozzle.

[0009] Preferably, a motor is fixedly connected to the bottom end of the workbench and near the center of one side, the output end of the motor passes through the workbench and is fixedly connected to the L-shaped support shaft, and an inclined plate is fixedly connected to the bottom inside the mounting frame.

[0010] Preferably, a second micro pump is provided on the side of the liquid storage tank near the bottom. One end of the second micro pump is fixedly connected to a second connecting pipe, and the other end of the second connecting pipe passes through the mounting frame and is fixedly connected to the square nozzle bracket.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. In this utility model, a micro pump 2 is used in conjunction with a connecting pipe 2 to transport the coolant in the storage tank to the square nozzle frame, and spray it from multiple external directions to cool the lower mold body. This can effectively reduce the mold temperature, ensure the stability of the injection molding process, and thus guarantee product quality.

[0013] 2. In this utility model, a micro pump, a connecting pipe, and a spherical nozzle are used to spray the release agent between the upper and lower molds, which helps the molded product to be easily removed, reduces the difficulty of demolding, and reduces the potential damage to the product. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the mounting frame of this utility model.

[0017] Figure 3 This is a schematic diagram of the L-shaped support shaft structure of this utility model.

[0018] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Workbench; 11. L-shaped plate; 2. U-shaped plate; 21. Upper mold; 22. Injection hole; 23. Electric cylinder; 3. L-shaped support shaft; 31. Motor; 32. Spherical nozzle; 33. Mounting plate; 34. Liquid storage box; 35. Micro pump one; 36. Connecting pipe one; 4. Liquid storage tank; 41. Micro pump two; 42. Lower mold; 43. Connecting pipe two; 44. Mounting frame; 45. Delivery pipe; 46. Inclined plate; 47. Square nozzle holder. 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. 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.

[0021] Example: Figure 1-4 As shown, this utility model provides a technical solution: a cooling assembly for an injection mold, including a workbench 1, an upper mold 21 at the center of the upper part of the workbench 1, a lower mold 42 fixedly connected to the center of the top of the workbench 1, and the lower mold 42 and the upper mold 21 being at the same level. A mounting frame 44 is fixedly connected to the outer end of the lower mold 42 near the center, and a square nozzle frame 47 is fixedly connected to the inner wall of the mounting frame 44. The square nozzle frame 47 is provided with multiple nozzles for spraying coolant onto the outer end of the lower mold 42. A liquid storage tank 4 is fixedly connected to the center of the front end of the workbench 1, and a delivery pipe 45 is fixedly connected to the center of the top of the liquid storage tank 4 near the lower mold 42. The delivery pipe 45 is used to collect the used coolant into the storage tank 4. The top end of the delivery pipe 45 is fixedly connected to the mounting frame 44. An L-shaped support shaft 3 is rotatably connected to the top of the workbench 1 near the center of one side. A spherical nozzle 32 is fixedly connected to the other end of the L-shaped support shaft 3. The spherical nozzle 32 can be selected according to actual needs. The spherical nozzle 32 can be an upper and lower spray hole, used to spray release agent into the upper mold 21 and the lower mold 42 to improve the demolding effect. The electrical components in this application are electrically connected to their compatible power supply through wires. A suitable controller should be selected according to the actual situation to meet the control requirements. The detailed connection methods are known in the art.

[0022] An L-shaped plate 11 is fixedly connected to the center of the back end of the workbench 1. An electric cylinder 23 is fixedly connected to the top of the L-shaped plate 11 near the center of one side, and the electric cylinder 23 and the lower mold 42 are on the same horizontal plane.

[0023] By adopting the above technical solution, the electric cylinder 23 works, and with the help of two guide telescopic shafts, the mold closing and opening actions of the upper mold 21 and the lower mold 42 can be precisely controlled.

[0024] The output end of the electric cylinder 23 is fixedly connected to the U-shaped plate 2 through the L-shaped plate 11, and the U-shaped plate 2 is fixedly connected to the upper mold 21.

[0025] By adopting the above technical solution, the electric cylinder 23 can operate, which can cause the fixedly connected upper mold 21 to rise and fall.

[0026] An injection hole 22 is provided at the top of the upper mold 21 near the center.

[0027] By adopting the above technical solution, an injection hole 22 is provided at the top of the upper mold 21 to facilitate the injection of injection material into it.

[0028] The top of the L-shaped support shaft 3 is fixedly connected to the mounting plate 33, and the top of the mounting plate 33 is fixedly connected to the liquid storage box 34. A micro pump 35 is set at one end of the liquid storage box 34 near the bottom center. One end of the micro pump 35 is fixedly connected to the connecting pipe 36, and the other end of the connecting pipe 36 is fixedly connected to the ball nozzle 32.

[0029] By adopting the above technical solution, starting the micro pump 35 can stably deliver the release agent inside the liquid storage box 34 to the spherical nozzle 32. A receiving plate can be set below the connecting pipe 36 to facilitate the stable operation of the connecting pipe 36.

[0030] A motor 31 is fixedly connected to the bottom of the workbench 1 and near the center of one side. The output end of the motor 31 passes through the workbench 1 and is fixedly connected to the L-shaped support shaft 3.

[0031] By adopting the above technical solution, starting the motor 31 can cause the fixedly connected L-shaped support shaft 3 to rotate, so that the spherical nozzle 32 sprays the mold and then returns to the initial position, which facilitates the opening and closing of the mold.

[0032] An inclined plate 46 is fixedly connected to the bottom of the mounting frame 44.

[0033] By adopting the above technical solution, an inclined plate 46 is set, and the lowest end of the inclined plate 46 is located at the delivery pipe 45, which facilitates the collection of the cooled coolant.

[0034] A miniature pump 41 is installed near the bottom of the side of the liquid storage tank 4. One end of the miniature pump 41 is fixedly connected to a connecting pipe 43, and the other end of the connecting pipe 43 passes through the mounting frame 44 and is fixedly connected to the square nozzle bracket 47.

[0035] By adopting the above technical solution, a cooling plate is installed inside the liquid storage tank 4 to cool the circulating coolant, thereby maintaining the temperature stability of the coolant. When the micro pump 41 is started, the coolant can be delivered to the square nozzle frame 47. A receiving plate is installed below the connecting pipe 43 to facilitate the stable operation of the connecting pipe 43.

[0036] Working principle: Before using this device, release agent needs to be added to the liquid storage box 34 and coolant needs to be added to the liquid storage tank 4. Then, start the working motor 31, which will cause the fixedly connected L-shaped support shaft 3 to rotate. When the spherical nozzle 32 is located between the upper mold 21 and the lower mold 42, the micro pump 35 can be activated, so that the connecting pipe 36 cooperates with the spherical nozzle 32 to spray the upper mold 21 and the lower mold 42, which makes it easy to take out the molded product.

[0037] After the release agent is sprayed, the reverse motor 31 is turned on. Once the spherical nozzle 32 is reset, the electric cylinder 23 is turned on, causing the fixedly connected U-shaped plate 2 to descend. This causes the fixedly connected upper mold 21 to descend above the lower mold 42. The injection molding material is then injected into the upper mold 21 and the lower mold 42 through the injection hole 22. After the injection is completed, the micro pump 41 is turned on, so that the coolant inside the liquid storage tank 4 is transported to the square nozzle frame 47 through the connecting pipe 43 and sprayed onto the outside of the lower mold 42. This allows for cooling of the lower mold 42 body from multiple external directions, reducing temperature differences between different parts of the lower mold 42 and improving product quality. The sprayed coolant can be transported to the liquid storage tank 4 through the delivery pipe 45 (the liquid storage tank 4 is equipped with a cooling plate for cooling), thus achieving a recycling effect.

[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An injection mold cooling assembly comprising a worktable (1), characterized in that: An upper mold (21) is provided at the center of the upper part of the workbench (1). A lower mold (42) is fixedly connected at the center of the top of the workbench (1). The lower mold (42) and the upper mold (21) are at the same level. An installation frame (44) is fixedly connected to the outer end of the lower mold (42) near the center. A square nozzle frame (47) is fixedly connected to the inner wall of the installation frame (44). A liquid storage tank (4) is fixedly connected to the center of the front end of the workbench (1). A delivery pipe (45) is fixedly connected to the center of the top of the liquid storage tank (4) near the lower mold (42). The top of the delivery pipe (45) is fixedly connected to the mounting frame (44). An L-shaped support shaft (3) is rotatably connected to the center of the top of the workbench (1) near one side. A spherical nozzle (32) is fixedly connected to the other end of the L-shaped support shaft (3).

2. An injection mold cooling assembly as defined in claim 1, wherein, An L-shaped plate (11) is fixedly connected to the center of the back end of the workbench (1). An electric cylinder (23) is fixedly connected to the top of the L-shaped plate (11) near the center of one side. The electric cylinder (23) and the lower mold (42) are on the same horizontal plane.

3. The injection mold cooling assembly as described in claim 2, characterized in that, The output end of the electric cylinder (23) is fixedly connected to the U-shaped plate (2) through the L-shaped plate (11), and the U-shaped plate (2) is fixedly connected to the upper mold (21).

4. The injection mold cooling assembly as described in claim 1, characterized in that, The upper mold (21) has an injection hole (22) near the center of its top.

5. A cooling assembly for an injection mold as described in claim 1, characterized in that, The top end of the L-shaped support shaft (3) is fixedly connected to an installation plate (33), and the top end of the installation plate (33) is fixedly connected to a liquid storage box (34). A micro pump (35) is provided at one end of the liquid storage box (34) near the bottom center. A connecting pipe (36) is fixedly connected to one end of the micro pump (35), and the other end of the connecting pipe (36) is fixedly connected to a spherical nozzle (32).

6. The injection mold cooling assembly as described in claim 1, characterized in that, A motor (31) is fixedly connected to the bottom end of the workbench (1) and near the center of one side. The output end of the motor (31) passes through the workbench (1) and is fixedly connected to the L-shaped support shaft (3).

7. The injection mold cooling assembly as described in claim 1, characterized in that, An inclined plate (46) is fixedly connected to the bottom of the interior of the mounting frame (44).

8. The injection mold cooling assembly as described in claim 1, characterized in that, A micro pump (41) is provided on the side of the liquid storage tank (4) near the bottom. One end of the micro pump (41) is fixedly connected to a connecting pipe (43), and the other end of the connecting pipe (43) passes through the mounting frame (44) and is fixedly connected to the square nozzle frame (47).

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