Plastic mold with heat dissipation structure

Abstract

The utility model discloses a plastic mould with a heat dissipation structure, which relates to the technical field of plastic moulds and comprises a lower mould and an air feeder arranged on the outer side of the lower mould, a support plate is fixedly arranged at the top of the air feeder, a hollow plate is fixedly arranged at the top of the support plate, and a plurality of connecting pipes are communicated with the inner wall of the hollow plate. A pipe opening of the connecting pipe is communicated with a heat dissipation pipe, a cold conveying pipe is communicated between the hollow plate and the air feeder, two symmetrically-arranged transverse rods are fixedly arranged on the pipe wall of the heat dissipation pipe, the rod walls of the two transverse rods are rotationally sleeved with mounting plates, the mounting plates are fixedly connected with the hollow plate, and the rod walls of the transverse rods are sleeved with torsional springs; the two ends of the torsional spring are fixedly connected with the transverse rod and the mounting plate correspondingly, and a lifting and swinging mechanism is arranged among the multiple cold conveying pipes jointly. According to the utility model, after the mold is opened, the plurality of heat dissipation pipes simultaneously and longitudinally swing to supply air, so that the heat dissipation of a water channel in the mold can be matched to further carry out comprehensive cooling and heat dissipation on plastics, and the heat dissipation effect of the mold is improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, and specifically to a plastic mold with a heat dissipation structure. Background Technology

[0002] Plastic molds, as a crucial part of the mold industry, are key tools specifically used for molding plastic products. In current plastic injection molding processes, in order to improve production efficiency and ensure the quality of plastic products, multiple staggered water channels are usually set inside the mold. These water channels cool the part being molded inside the mold by introducing flowing water.

[0003] However, existing plastic molds have certain limitations in the design of cooling systems. Since the location of the water channels is relatively fixed, they can mostly only be distributed on the outside of the part. This layout makes the contact between the cooling medium and the part insufficient and uneven, and it is impossible to cool the part more deeply and effectively. In particular, for some parts with complex structures and uneven wall thickness, relying solely on the outer water channels for cooling can easily lead to insufficient local cooling.

[0004] Therefore, we propose a plastic mold with a heat dissipation structure to solve the above problems. Utility Model Content

[0005] In view of the problems existing in the above-mentioned plastic molds with heat dissipation structures, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a plastic mold with a heat dissipation structure, which solves the problem that the existing injection molds reduce the cooling effect of the parts through internal water channels.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A plastic mold with a heat dissipation structure includes a lower mold and a blower located outside the lower mold. A support plate is fixedly provided on the top of the blower, and a hollow plate is fixedly provided on the top of the support plate. A plurality of connecting pipes are connected to the inner wall of the hollow plate, and heat dissipation pipes are connected to the openings of the connecting pipes. A cooling pipe is connected between the hollow plate and the blower.

[0009] The heat dissipation pipe has two symmetrically arranged crossbars fixedly installed on its wall. The walls of the two crossbars are rotatably fitted with mounting plates. The mounting plates are fixedly connected to the hollow plate. The walls of the crossbars are fitted with torsion springs. The two ends of the torsion springs are fixedly connected to the crossbars and the mounting plates, respectively.

[0010] A lifting and swinging mechanism is provided among the multiple cooling pipes, which is used to drive the cooling pipes to swing longitudinally.

[0011] Preferably, the lifting and swinging mechanism includes an electric push rod, and two symmetrically arranged fixed plates are fixedly provided on the upper end of the outer wall of the support plate. The electric push rod is fixedly provided between the two fixed plates, and a push plate is fixedly provided on the top of the push plate. A push ring is fixedly provided on the top of the push plate, and multiple pull ropes are fixedly provided on the bottom of the push ring. The bottom of the pull ropes is fixedly connected to the heat dissipation pipe.

[0012] Preferably, the connecting pipe is a telescopic corrugated pipe.

[0013] Preferably, the lower end of the blower is fixed with two symmetrically arranged connecting plates, and connecting bolts are threaded between the connecting plates and the lower mold.

[0014] Furthermore, the hollow plate is arranged in a ring shape.

[0015] Preferably, each of the ends of the plurality of heat dissipation pipes is fixedly embedded with a filter screen.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] 1. This utility model, through the provided lower mold, blower, cooling pipe, hollow plate, connecting pipe, heat dissipation pipe and lifting swing mechanism, can deliver air longitudinally through multiple heat dissipation pipes simultaneously after the mold is opened, which can further and comprehensively cool the plastics in conjunction with the internal water channel heat dissipation of the mold, thereby improving the heat dissipation effect of the mold.

[0018] 2. This utility model, through the provided blower, connecting plate and connecting bolts, enables the heat dissipation components to be quickly assembled with the mold, thereby improving the ease of use of the mold. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the lifting and swinging mechanism of this utility model;

[0022] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of part A.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Lower mold; 2. Blower; 3. Support plate; 4. Hollow plate; 5. Connecting pipe; 6. Heat dissipation pipe; 7. Cooling pipe; 8. Crossbar; 9. Mounting plate; 10. Torsion spring; 11. Electric push rod; 12. Fixing plate; 13. Push plate; 14. Push ring; 15. Pull rope; 16. Connecting plate; 17. Connecting bolt; 18. Filter screen. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model discloses a plastic mold with a heat dissipation structure.

[0027] This utility model provides, for example Figure 1-3 A plastic mold with a heat dissipation structure is shown, including a lower mold 1 and a blower 2 located outside the lower mold 1. Two symmetrically arranged connecting plates 16 are fixedly provided at the lower end of the blower 2. Connecting bolts 17 are threaded through the connecting plates 16 and the lower mold 1. A support plate 3 is fixedly provided at the top of the blower 2. A hollow plate 4 is fixedly provided at the top of the support plate 3. The hollow plate 4 is arranged in a ring shape. Multiple connecting pipes 5 are connected to the inner wall of the hollow plate 4. The connecting pipes 5 are telescopic corrugated pipes. Heat dissipation pipes 6 are connected to the openings of the connecting pipes 5. Filter screens 18 and 9 are fixedly embedded at the ends of the multiple heat dissipation pipes 6 to filter the air entering the blower 2 and prevent dust from adhering to the surface of the molded part through the airflow. A cooling pipe 7 is connected between the hollow plate 4 and the blower 2.

[0028] The heat dissipation pipe 6 has two symmetrically arranged crossbars 8 fixedly installed on its wall. The walls of the two crossbars 8 are rotatably fitted with mounting plates 9. The mounting plates 9 are fixedly connected to the hollow plate 4. The walls of the crossbars 8 are fitted with torsion springs 10. The two ends of the torsion springs 10 are fixedly connected to the crossbars 8 and the mounting plates 9, respectively.

[0029] In order to enable multiple heat pipes 6 to oscillate and thus increase the heat dissipation range, such as Figure 2-3 As shown, a lifting and swinging mechanism is provided between multiple cooling pipes 7. The lifting and swinging mechanism is used to drive the cooling pipes 7 to swing longitudinally. The lifting and swinging mechanism includes an electric push rod 11. Two symmetrically arranged fixed plates 12 are fixedly provided on the upper end of the outer wall of the support plate 3. The electric push rod 11 is fixed between the two fixed plates 12, and a push plate 13 is fixedly provided on the top. A push ring 14 is fixedly provided on the top of the push plate 13. Multiple pull ropes 15 are fixedly provided on the bottom of the push ring 14. The bottom of the pull ropes 15 is fixedly connected to the heat dissipation pipe 6.

[0030] Working principle: When the plastic mold completes the injection process and is ready to cool the molded plastic part, the blower 2 is started first. The cold air generated by the blower 2 is transported to the hollow plate 4 through the cooling pipe 7. Since the hollow plate 4 is arranged in a ring shape and its inner wall is connected to multiple connecting pipes 5, the cold air will be evenly distributed to each connecting pipe 5 and then enter the heat dissipation pipe 6 connected to the pipe opening of the connecting pipe 5.

[0031] Then the lifting and swinging mechanism is activated, the electric push rod 11 starts to work, its telescopic rod extends upward, pushing the push plate 13 to rise, the push ring 14 at the top of the push plate 13 rises accordingly, driving the pull rope 15 to pull upward. The pull rope 15 is fixedly connected to the heat dissipation pipe 6, so the heat dissipation pipe 6 will rotate around the crossbar 8 under the pulling force of the pull rope 15. When the crossbar 8 rotates, the torsion spring 10 sleeved on its wall undergoes elastic deformation.

[0032] As the electric push rod 11 continues to rise, multiple heat dissipation pipes 6 swing upwards in sync to cool the plastic parts inside the mold. When the electric push rod 11 reaches the predetermined stroke, the telescopic rod begins to retract, and the push plate 13, push ring 14 and pull rope 15 descend accordingly. At this time, the torsion spring 10 restores its elastic deformation, releases its elastic force, and pushes the heat dissipation pipes 6 to rotate in the opposite direction, so that they return to their initial position.

[0033] Thus, in conjunction with the oscillating airflow of the external heat dissipation pipe 6 and the internal water channel cooling, the plastic parts are cooled from different directions and in different ways, making the cooling more comprehensive and uniform, and effectively improving the heat dissipation effect of the mold.

[0034] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A plastic mold with a heat dissipation structure, comprising a lower mold (1) and a blower (2) arranged outside the lower mold (1), characterized in that, The top of the blower (2) is fixedly provided with a support plate (3), the top of the support plate (3) is fixedly provided with a hollow plate (4), the inner wall of the hollow plate (4) is connected with a plurality of connecting pipes (5), the opening of the connecting pipes (5) is connected with a heat dissipation pipe (6), and a cooling pipe (7) is connected between the hollow plate (4) and the blower (2). The heat dissipation pipe (6) has two symmetrically arranged crossbars (8) fixedly installed on its wall. The walls of the two crossbars (8) are rotatably fitted with mounting plates (9). The mounting plates (9) are fixedly connected to the hollow plate (4). The walls of the crossbars (8) are fitted with torsion springs (10). The two ends of the torsion springs (10) are fixedly connected to the crossbars (8) and the mounting plates (9) respectively. A lifting and swinging mechanism is provided among the multiple cooling pipes (7), which is used to drive the cooling pipes (7) to swing longitudinally.

2. The plastic mold with heat dissipation structure according to claim 1, wherein, The lifting and swinging mechanism includes an electric push rod (11). Two symmetrically arranged fixed plates (12) are fixedly provided on the upper end of the outer wall of the support plate (3). The electric push rod (11) is fixed between the two fixed plates (12) and a push plate (13) is fixedly provided on the top. A push ring (14) is fixedly provided on the top of the push plate (13). Multiple pull ropes (15) are fixedly provided on the bottom of the push ring (14). The bottom of the pull ropes (15) is fixedly connected to the heat dissipation pipe (6).

3. The plastic mold with heat dissipation structure according to claim 1, wherein, The connecting pipe (5) is a telescopic corrugated pipe.

4. The plastic mold with heat dissipation structure according to claim 1, wherein, The lower end of the blower (2) is fixed with two symmetrically arranged connecting plates (16), and connecting bolts (17) are threaded between the connecting plates (16) and the lower mold (1).

5. The plastic mold with heat dissipation structure according to claim 1, wherein, The hollow plate (4) is arranged in a ring shape.

6. The plastic mold with heat dissipation structure according to claim 1, wherein, Each of the heat dissipation pipes (6) has a filter screen (18) fixedly embedded at its end.

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