A vacuum-assisted molding structure mold

Abstract

This utility model discloses a vacuum-assisted molding structure mold, including a punch with a sealing strip on its upper side and uniformly distributed guide holes on its upper side. A vacuum assembly is fitted inside the punch. The mold also includes a cooling mechanism and a mounting frame. The cooling mechanism includes a coolant annular groove, a mounting ring, heat dissipation columns, an arc-shaped heat spreader, and a cylindrical nozzle. The mounting frame has uniformly distributed guide columns on its lower side, each slidably connected to an adjacent guide hole on its lower side. A through hole is formed in the center of the upper side of the mounting frame. The coolant annular groove is located on the upper side of the mounting frame, and the mounting ring is rotatably connected to the upper end of the coolant annular groove. This vacuum-assisted molding structure mold, through coolant circulation, heat dissipation columns, and the arc-shaped heat spreader conducting cold air, combined with the rotating cylindrical nozzle spraying out cooling airflow to form an air curtain, can quickly and uniformly cool the molding material, accelerate curing, and improve molding uniformity.

Description

Technical Field

[0001] This utility model relates to the field of molding die technology, specifically to a vacuum-assisted molding structure die. Background Technology

[0002] In the field of modern industrial manufacturing, molding dies, as key equipment for achieving precise material forming, are widely used in many industries such as aerospace, automobile manufacturing, and electronic components. As the market demands for product precision, production efficiency, and molding quality increase, vacuum-assisted molding technology has become an important direction for mold technology development due to its advantages in effectively eliminating air gaps between materials and molds and ensuring molding precision. As the core component of molding dies, the cooling system's cooling efficiency and uniformity for the molding material directly affect the material curing speed, molding cycle, and the performance stability of the final product. Therefore, a more efficient integrated cooling and vacuum solution is needed to meet the needs of industrial production.

[0003] Currently, most commercially available vacuum-assisted molding dies use vacuum components that are fixed air passages within the punch, connected to an external vacuum pump via an air passage interface. The vacuum port creates negative pressure, forcing the molding material to adhere to the punch surface. Regarding cooling mechanisms, traditional dies typically employ fixed cooling channels within the mounting frame or punch, circulating coolant through inlet and outlet pipes. Cooling of the molding material relies on heat conduction between the coolant and the mold, lacking dynamic heat dissipation from the material surface. Furthermore, the cooling components are mostly static, making comprehensive cooling coverage difficult. Existing vacuum-assisted molding dies present several problems in practical applications. Static cooling methods fail to ensure uniform coolant distribution across the material surface, leading to inconsistent curing levels in different areas of the molded part, resulting in product deformation, dimensional deviations, and other quality issues. Therefore, a vacuum-assisted molding structure dies are proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a vacuum-assisted molding structure mold, in which coolant circulation, heat dissipation columns and arc-shaped heat spreader conduct cold energy, and in conjunction with the rotation of the cylindrical nozzle, can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum-assisted forming structure mold, including a punch, a sealing strip on the upper side of the punch, uniformly distributed guide holes on the upper side of the punch, a vacuum assembly inside the punch, and a cooling mechanism and a mounting bracket.

[0006] The cooling mechanism includes a coolant annular groove, a mounting ring, heat dissipation columns, an arc-shaped heat spreader, and a cylindrical nozzle. The lower side of the mounting frame has evenly distributed guide columns, each slidably connected to an adjacent guide hole on the lower side. A through hole is opened in the center of the upper side of the mounting frame. The coolant annular groove is located on the upper side of the mounting frame, and the upper end of the coolant annular groove is rotatably connected to the mounting ring. Evenly distributed heat dissipation columns are located in the center of the mounting ring, and an arc-shaped heat spreader is installed at the upper end of each heat dissipation column. The cylindrical nozzle is fixedly connected between the inner arc surfaces of the arc-shaped heat spreader. The lower end of the cylindrical nozzle is located inside the through hole and contacts the inner wall of the through hole. Evenly distributed spray holes are opened at the lower end of the cylindrical nozzle. Through coolant circulation, heat dissipation columns, and the arc-shaped heat spreader conducting cooling energy, combined with the rotating cylindrical nozzle spraying out cooling airflow to form an air curtain, the molding material can be cooled quickly and evenly, accelerating curing and improving molding uniformity.

[0007] Furthermore, a control switch is provided on the front side of the mounting bracket, and the input terminal of the control switch is electrically connected to an external power source for stable control.

[0008] Furthermore, the cooling mechanism also includes a connecting duct and a rotary joint. The connecting duct is located inside the air inlet on the side wall of the cylindrical nozzle, and a rotary joint is connected in series in the middle of the connecting duct to facilitate the connection of the cylindrical nozzle to an external fan.

[0009] Furthermore, the cooling mechanism also includes a driven gear and a gear. The driven gear is disposed on the outer arc surface of the lower end of the connecting air duct, and a gear is provided on the upper side of the mounting bracket. The gear meshes with the driven gear to drive the cylindrical nozzle to rotate.

[0010] Furthermore, the upper side of the mounting bracket is provided with a vertical plate, the gear is located on the lower side of the vertical plate, and the gear and the vertical plate are rotatably connected by a rotating shaft. A motor is installed on the upper side of the vertical plate, the output shaft of the motor is fixedly connected to the center of the upper end face of the rotating shaft, and the input end of the motor is electrically connected to the output end of the control switch for stable driving.

[0011] Furthermore, the front side wall of the mounting bracket is provided with an inlet pipe, and the rear side wall of the mounting bracket is provided with an outlet pipe. Both the inlet pipe and the outlet pipe are connected to the coolant annular groove, which allows the coolant to circulate.

[0012] Furthermore, the air extraction component is an air passage pipe, which is located inside the punch. The front side wall of the punch has an air passage interface and is connected to the air passage pipe. The upper side of the punch has an air extraction port, which is connected to the air passage pipe for easy air extraction.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The cooling mechanism utilizes the circulating flow of coolant within the annular coolant tank, combined with the aluminum alloy material of the heat dissipation column and the arc-shaped heat spreader, to rapidly conduct cold energy and cool the cylindrical nozzle. When external air enters the cylindrical nozzle through the connecting duct and rotary joint, the airflow is cooled and ejected at high speed from the nozzle to form a rotating air curtain. This not only directly blows onto the surface of the molding material to accelerate heat exchange, but also drives the cylindrical nozzle to rotate via a motor-driven gear, allowing the cooling airflow to evenly cover the material surface. Simultaneously, the coolant is stirred at the lower end of the heat dissipation column to further improve heat exchange efficiency, thereby achieving rapid and efficient cooling of the molding material, accelerating its curing, and improving molding uniformity. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the rear structure of the mounting bracket of this utility model;

[0017] Figure 3 This is a partial cross-sectional structural diagram of the mounting bracket of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the mounting bracket of this utility model, viewed from the top side in cross section.

[0019] Figure 5 This is a partial structural diagram of the arc-shaped heat spreader and cylindrical nozzle of this utility model;

[0020] Figure 6 This is a partial structural diagram of the punch of this utility model.

[0021] In the diagram: 1. Sealing strip, 2. Air interface, 3. Air pipe, 4. Air extraction port, 5. Cooling mechanism, 51. Coolant annular groove, 52. Mounting ring, 53. Heat dissipation column, 54. Arc-shaped heat spreader plate, 55. Circular nozzle, 56. Driven gear, 57. Gear, 58. Connecting air duct, 59. Rotary joint, 6. Mounting bracket, 7. Through hole, 8. Rotating shaft, 9. Motor, 10. Vertical plate, 11. Inlet pipe, 12. Control switch, 13. Punch, 14. Discharge pipe, 15. Guide post, 16. Guide hole. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-6This embodiment provides a technical solution: a vacuum-assisted forming structure mold, including a punch 13, a sealing strip 1 on the upper side of the punch 13, the sealing strip 1 being a copper sealing strip, and evenly distributed guide holes 16 on the upper side of the punch 13. A vacuum assembly, which is an air passage pipe 3, is fitted inside the punch 13. The air passage pipe 3 is located inside the punch 13. An air passage interface 2 is provided on the front side wall of the punch 13 and is connected to the air passage pipe 3. A vacuum port 4 is provided on the upper side of the punch 13 and is connected to the air passage pipe 3. The mold also includes a cooling mechanism 5 and a mounting bracket 6.

[0024] The cooling mechanism 5 includes a coolant annular groove 51, a mounting ring 52, a heat dissipation column 53, an arc-shaped heat spreader 54, and a cylindrical nozzle 55. The lower side of the mounting frame 6 is provided with evenly distributed guide columns 15. The front side of the mounting frame 6 is provided with a control switch 12, the input of which is electrically connected to an external power source. The guide columns 15 are slidably connected to adjacent guide holes 16 on the lower side. A through hole 7 is opened in the middle of the upper side of the mounting frame 6. The coolant annular groove 51 is located on the upper side of the mounting frame 6. An inlet pipe 11 is provided on the front side wall of the mounting frame 6, and an outlet pipe 14 is provided on the rear side wall of the mounting frame 6. Both the inlet pipe 11 and the outlet pipe 14 are connected to the coolant annular groove 51. The upper end of the coolant annular groove 51 is rotatably connected to the mounting ring 52 (the coolant annular groove 51 is located outside the through hole 7, and the inner end of the coolant annular groove 51 near the center of the through hole 7 is...). A first sealed bearing is fixedly installed on the arc surface, and a second sealed bearing is fixedly installed on the inner arc surface of the end of the coolant annular groove 51 away from the center of the through hole 7. An installation ring 52 is fixedly connected between the outer ring of the first sealed bearing and the inner ring of the second sealed bearing. A heat dissipation column 53 is evenly distributed in the middle of the installation ring 52. An arc-shaped heat dissipation plate 54 is provided at the upper end of each heat dissipation column 53 (the lower end of the heat dissipation column 53 extends into the interior of the coolant annular groove 51, and the lower end of each heat dissipation column 53 is provided with blades. At the same time, the heat dissipation column 53 is an aluminum alloy heat dissipation column, the arc-shaped heat dissipation plate 54 is an aluminum alloy arc-shaped heat dissipation plate, and the cylindrical nozzle 55 is an aluminum alloy cylindrical nozzle). The cylindrical nozzle 55 is fixedly connected between the inner arc surfaces of the arc-shaped heat dissipation plate 54. The lower end of the cylindrical nozzle 55 is located inside the through hole 7 and contacts the inner wall of the through hole 7. The lower end of the cylindrical nozzle 55 has evenly distributed spray holes.

[0025] The cooling mechanism 5 also includes a connecting duct 58 and a rotary joint 59. The connecting duct 58 is located inside the air inlet on the upper side wall of the cylindrical nozzle 55, and the rotary joint 59 is connected in series in the middle of the connecting duct 58.

[0026] The cooling mechanism 5 also includes a driven gear 56 and a gear 57. The driven gear 56 is located on the outer arc surface of the lower end of the connecting air duct 58. The upper side of the mounting bracket 6 is provided with a gear 57, which meshes with the driven gear 56. The upper side of the mounting bracket 6 is provided with a vertical plate 10, and the gear 57 is located on the lower side of the vertical plate 10. The gear 57 and the vertical plate 10 are rotatably connected through a rotating shaft 8. The upper side of the vertical plate 10 is equipped with a motor 9. The output shaft of the motor 9 is fixedly connected to the center of the upper end face of the rotating shaft 8. The input end of the motor 9 is electrically connected to the output end of the control switch 12.

[0027] The working principle of this utility model is as follows:

[0028] The punch 13 is fixed on the frame of the mold equipment or the slide of the press, providing a support base for the up and down movement of the punch 13. Then, the molding material sheet heated to the softening temperature is delivered to the top of the punch 13 using an external clamp. Then, the external press is operated to drive the punch 13 to move upward. The punch 13 is slidably connected to the guide post 15 of the mounting frame 6 through the guide hole 16. The punch 13 moves upward and extrudes the molding material sheet. At this time, the lower side of the molding material sheet contacts the upper side of the sealing strip 1 of the punch 13.

[0029] Then, an external pressure ring is used to firmly fix the molding material sheet. An air extraction port 4 is opened on the punch 13 and connected to the external air interface 2 through the internal air pipe 3. When the external vacuum pump is started, the air extraction port 4 forms a negative pressure, which makes the molding material stick tightly to the surface of the punch 13, eliminating the air gap between the material and the punch 13, and achieving precise molding. While the material is sticking to the punch 13 under negative pressure, the worker introduces coolant into the coolant annular groove 51 through the inlet pipe 11. After flowing in the coolant annular groove 51, it flows out from the outlet pipe 14.

[0030] During this process, the control switch 12 is operated to make the motor 9 run (at the same time, the external fan connected to the upper end of the connecting air duct 58 is also started, blowing air into the inside of the cylindrical nozzle 55 through the connecting air duct 58). The motor 9 drives the rotating shaft 8 to rotate, which drives the gear 57 to rotate. The gear 57 meshes with the driven gear 56, causing the connecting air duct 58 and the cylindrical nozzle 55 to rotate around the axis of the through hole 7. The rotary joint 59 in the middle of the connecting air duct 58 allows the pipe to maintain ventilation during rotation, avoiding pipe entanglement. When the cylindrical nozzle 55 rotates, the nozzle at its lower end sprays airflow into the punch 13 to form a rotating air curtain. On the one hand, the airflow directly blows on the surface of the molding material, accelerating heat exchange.

[0031] In this configuration, as the cylindrical nozzle 55 rotates, the arc-shaped heat spreader 54 and the heat dissipation column 53 rotate synchronously with the cylindrical nozzle 55 under the rotational support of the mounting ring 52. The lower end of the heat dissipation column 53 is immersed in the coolant. During rotation, the lower end of the heat dissipation column 53 continuously stirs the coolant. The aluminum alloy material of the heat dissipation column 53 and the arc-shaped heat spreader 54 rapidly conducts the cooling energy. The lower end of the heat dissipation column 53 is immersed in the flowing coolant, while the upper end is fixedly connected to the arc-shaped heat spreader 54. The cylindrical nozzle 55 is mounted on the arc-shaped heat spreader 54. Between the inner arc surfaces, the cooling capacity of the coolant is transferred to the cylindrical nozzle 55 through the heat dissipation column 53 and the arc-shaped heat dissipation plate 54, thus lowering its temperature. When an external air source supplies air to the cylindrical nozzle 55 through the connecting air duct 58 and the rotary joint 59, the airflow flows through the low-temperature inner wall of the cylindrical nozzle 55 and exchanges heat with the cylindrical nozzle 55 to be cooled. Then, it is sprayed out at high speed from the lower nozzle hole, which accelerates the material solidification and improves the molding uniformity. After molding is completed, the driving punch 13 moves down to remove the molded part, completing one molding cycle.

[0032] It is worth noting that the motor 9 disclosed in the above embodiments can be a 42SHD series stepper motor, and the control switch 12 is provided with a control button corresponding to the motor 9 and used to control its switching.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A suction-assisted forming structure mold, comprising a male mold (13), the upper side of the male mold (13) is provided with a sealing strip (1), the upper side of the male mold (13) is provided with uniformly distributed guide holes (16), and the inside of the male mold (13) is provided with a suction assembly, characterized in that: It also includes a cooling mechanism (5) and a mounting bracket (6); The cooling mechanism (5) includes a coolant annular groove (51), a mounting ring (52), a heat dissipation column (53), an arc-shaped heat spreader (54), and a cylindrical nozzle (55). The lower side of the mounting frame (6) is provided with evenly distributed guide columns (15), each guide column (15) being slidably connected to an adjacent guide hole (16) on the lower side. A through hole (7) is opened in the middle of the upper side of the mounting frame (6). The coolant annular groove (51) is located on the upper side of the mounting frame (6), and the coolant... An installation ring (52) is rotatably connected to the upper end of the annular groove (51). The middle part of the installation ring (52) is provided with uniformly distributed heat dissipation columns (53). The upper end of each heat dissipation column (53) is provided with an arc-shaped heat dissipation plate (54). The cylindrical nozzle (55) is fixedly connected between the inner arc surfaces of the arc-shaped heat dissipation plate (54). The lower end of the cylindrical nozzle (55) is located inside the through hole (7) and contacts the inner wall of the through hole (7). The lower end of the cylindrical nozzle (55) is provided with uniformly distributed spray holes.

2. A structure mold for a suction assisted molding according to claim 1, wherein: The front side of the mounting bracket (6) is provided with a control switch (12), and the input end of the control switch (12) is electrically connected to an external power source.

3. A gas extraction assisted forming structural mold according to claim 2, wherein: The cooling mechanism (5) also includes a connecting duct (58) and a rotary joint (59). The connecting duct (58) is located inside the air inlet on the upper side wall of the cylindrical nozzle (55), and the rotary joint (59) is connected in series in the middle of the connecting duct (58).

4. A gas extraction assisted forming structural mold according to claim 3, wherein: The cooling mechanism (5) also includes a driven gear (56) and a gear (57). The driven gear (56) is located on the outer arc surface of the lower end of the connecting air duct (58). The upper side of the mounting bracket (6) is provided with a gear (57), which meshes with the driven gear (56).

5. A gas extraction assisted forming structural mold according to claim 4, wherein: The mounting bracket (6) has a vertical plate (10) on its upper side. The gear (57) is located on the lower side of the vertical plate (10). The gear (57) and the vertical plate (10) are rotatably connected by a rotating shaft (8). A motor (9) is installed on the upper side of the vertical plate (10). The output shaft of the motor (9) is fixedly connected to the center of the upper end face of the rotating shaft (8). The input end of the motor (9) is electrically connected to the output end of the control switch (12).

6. A structure mold for vacuum aided forming according to claim 1, wherein: The front side wall of the mounting bracket (6) is provided with an inlet pipe (11), and the rear side wall of the mounting bracket (6) is provided with an outlet pipe (14). Both the inlet pipe (11) and the outlet pipe (14) are connected to the coolant annular groove (51).

7. A structure mold for a vacuum assisted molding according to claim 1, wherein: The air extraction component is an air passage pipe (3), which is located inside the punch (13). The front side wall of the punch (13) is provided with an air passage interface (2) and is connected to the air passage pipe (3). The upper side of the punch (13) is provided with an air extraction port (4), which is connected to the air passage pipe (3).

Images