Injection mold based on complex curved surface automobile injection molding part

Abstract

The utility model discloses an injection mold based on an automobile injection molding part with a complex curved surface, which relates to the technical field of injection molds and comprises a base, a support frame fixedly mounted at the top end of the base, a fixed mold fixedly mounted at the top end of the support frame, a movable mold arranged at the top end of the fixed mold, and C-shaped plates fixedly mounted at two ends of the outer wall of the movable mold. Spraying assemblies are arranged on the inner walls of the C-shaped plate and the supporting frame, a transmission assembly is arranged at the bottom end of the base, and an air blowing assembly is arranged on the outer wall of the supporting frame. The spraying assembly can spray cooling water to the surface of the mold, the spraying position can be changed, two water spraying pipes can spray water to different positions of the mold for cooling, the cooling effect on the mold is improved, and the air blowing assembly generates wind power to blow air to the surface of the movable mold and the surface of the fixed mold for cooling. And evaporation of water on the surfaces of the movable mold and the fixed mold can be accelerated under the action of wind, and the mold cooling effect is further improved through cooperation of the two molds.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for complex-curved automotive injection parts. Background Art

[0002] An injection mold is a tool for producing plastic products. Injection molding is a processing method used when mass-producing some parts with complex shapes. Specifically, it means injecting the heat-melted plastic into the mold cavity under high pressure by an injection molding machine. After cooling and solidifying, the formed product is obtained. In the field of automobile manufacturing, complex-curved automotive injection parts play a crucial role. As the core tool for producing these key parts, in the production of complex-curved automotive injection parts, cooling the mold surface to facilitate the shedding of the injection parts is a key requirement. During the injection process, the mold absorbs a large amount of heat, resulting in a temperature rise. If the cooling treatment is not carried out in time, the high-temperature mold will cause uneven shrinkage of the injection parts during the cooling process, thereby increasing the difficulty of demolding and even possibly causing deformation or damage to the injection parts.

[0003] In the prior art, such as a complex-curved injection part injection mold with the patent number CN214645469U, its technical solution is: including a box body, an auxiliary mechanism is arranged inside the box body, the auxiliary mechanism extends out of the box body, the auxiliary mechanism includes a motor, the motor is fixedly arranged on one side of the box body, the motor is fixedly connected with a first rotating rod through an output shaft, the first rotating rod extends into the box body and is connected with the box body through a bearing. The beneficial effect of the utility model is: through the design of the auxiliary mechanism, the plastic in the curved surface injection mold body can be accelerated to cool, so as to accelerate the internal cooling speed of the mold body. This design not only saves time cost, but also can achieve the benefit of accelerating production, and to a certain extent, achieves the advantages of improving work efficiency and saving time cost, so as to solve the problems of slow heat dissipation speed inside the mold and difficulty in taking out the finished product.

[0004] Although the above patent can drive the fan blades to rotate to play a role in dissipating heat from the connecting frame, there are still some problems. The simple rotation of the fan blades generates wind, and the heat dissipation effect on the connecting frame may be poor. At the same time, the fan blades can only blow air to dissipate heat from the top of the connecting frame, while the bottom of the connecting frame cannot be effectively cooled. Therefore, the utility model provides an injection mold for complex-curved automotive injection parts. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides an injection mold for complex-curved automotive injection parts, which solves the problems.

[0006] To achieve the above object, the utility model is realized by the following technical solutions: An injection mold for complex curved surface automotive injection parts, including a base, a support frame is fixedly installed at the top end of the base, a fixed mold is fixedly installed at the top end of the support frame, a moving mold is arranged at the top end of the fixed mold, C-shaped plates are fixedly installed at both ends of the outer wall of the moving mold, spraying components are arranged on the inner walls of the C-shaped plates and the support frame, a transmission component is arranged at the bottom end of the base, and a blowing component is arranged on the outer wall of the support frame;

[0007] The spraying component includes a casing, a reciprocating lead screw is rotatably installed on the inner wall of the casing, and both ends of the outer wall of the reciprocating lead screw penetrate through the inner wall of the casing;

[0008] The transmission component includes a motor, the motor is fixedly installed at the bottom end of the base, the output shaft of the motor penetrates through the top end of the base and is fixedly installed with a second rotating rod;

[0009] The blowing component includes a driving wheel and a driven wheel.

[0010] Preferably, a slider is threadedly connected to the outer wall of the reciprocating lead screw, the slider is movably inserted into the inner wall of the casing, an installation frame is fixedly installed at the top end of the slider, a water spraying pipe is fixedly installed on the inner wall of the installation frame, a group of nozzles are arranged on the outer wall of the water spraying pipe, and a connecting pipe is fixedly communicated with the outer wall of the water spraying pipe.

[0011] Preferably, a first bevel gear is fixedly installed at one end of the outer walls of the two reciprocating lead screws, one of the two casings is fixedly connected to the C-shaped plate, one of the two casings is fixedly connected to the support frame, and the other end of the outer wall of one of the two reciprocating lead screws is fixedly connected to the driving wheel.

[0012] Preferably, a vertical plate is fixedly installed at the top end of the support frame, a first rotating rod is rotatably installed on the outer wall of the vertical plate, the first rotating rod is fixedly connected to the driven wheel, a fan blade is fixedly installed at one end of the outer wall of the first rotating rod, a belt is sleeved on the outer walls of the driven wheel and the driving wheel, and the diameter of the driving wheel is larger than that of the driven wheel.

[0013] Preferably, a second bevel gear is fixedly sleeved on the outer wall of the second rotating rod, the second bevel gear is meshed with one of the two first bevel gears, two sliding strips are fixedly installed on the outer wall of the second rotating rod, a sliding bevel gear and a rotating sliding sleeve are slidably connected to the outer wall of the second rotating rod, the sliding bevel gear is fixedly connected to the rotating sliding sleeve, the sliding bevel gear is meshed with one of the two first bevel gears, and a connecting plate is rotatably installed on the outer surface of the rotating sliding sleeve, and the connecting plate is fixedly connected to the C-shaped plate.

[0014] Preferably, a frame is fixedly installed at the top end of the base, a hydraulic rod is fixedly installed at the top end of the frame, and the output end of the hydraulic rod is fixedly connected to a C-shaped plate.

[0015] Beneficial effects

[0016] The utility model provides an injection mold for automotive injection molded parts with complex curved surfaces. Compared with the prior art, it has the following beneficial effects:

[0017] (1). For the injection mold for automotive injection molded parts with complex curved surfaces, after pouring is completed, the surfaces of the moving mold and the fixed mold can be cooled to improve the cooling rate of the injection molded parts and reduce the difficulty of the injection molded parts falling off from the mold. At this time, the two spray pipes can be connected to two soft water pipes outside, and then cooling water is introduced into the soft water pipes. The two spray pipes respectively spray cooling water on the surfaces of the moving mold and the fixed mold through the nozzles, so as to cool and lower the temperature of the mold surface. Then, in order to improve the cooling effect on the mold, the motor can be started. The motor drives the second rotating rod to rotate, the second rotating rod drives the second bevel gear to rotate, and the second bevel gear then drives the first bevel gear and the reciprocating screw rod below to rotate. At the same time, the second rotating rod drives the two sliding strips to rotate, and the two sliding strips then drive the sliding bevel gear and the rotating sliding sleeve to rotate. The sliding bevel gear then drives the first bevel gear and the reciprocating screw rod above to rotate. During the rotation of the reciprocating screw rod, it can drive the slider to move reciprocally, thereby driving the two spray pipes to move reciprocally, so that the two spray pipes can spray water and cool different positions of the moving mold and the fixed mold, thereby improving the cooling effect on the mold.

[0018] (2). For the injection mold for automotive injection molded parts with complex curved surfaces, when the reciprocating screw rod below rotates, it can drive the driving wheel to rotate. The driving wheel drives the driven wheel and the first rotating rod to rotate through the belt, and the first rotating rod then drives the fan blades to start rotating. At the same time, since the diameter of the driving wheel is larger than that of the driven wheel, the rotating speed of the fan blades can be increased, and the wind force generated by the fan blades can be increased. The wind force generated by the fan blades blows on the surfaces of the moving mold and the fixed mold to cool them. The effect of the wind can accelerate the evaporation of water on the surfaces of the moving mold and the fixed mold, and the mutual cooperation of the two further improves the cooling effect on the mold. Description of the drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the main structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the relevant structure of the support frame of the utility model;

[0022] Figure 4Schematic diagram of the relevant structure of the C-shaped plate of the present utility model;

[0023] Figure 5 of the present utility model Figure 4 Enlarged view of part A in

[0024] In the figure: 1, base; 2, frame; 3, hydraulic rod; 4, C-shaped plate; 5, moving die; 6, support frame; 7, blowing assembly; 71, driving wheel; 72, belt; 73, driven wheel; 74, first rotating rod; 75, fan blade; 76, vertical plate; 8, spraying assembly; 81, housing; 82, reciprocating screw rod; 83, slider; 84, mounting bracket; 85, water spraying pipe; 86, first bevel gear; 9, transmission assembly; 91, motor; 92, second rotating rod; 93, second bevel gear; 94, slide bar; 95, sliding bevel gear; 96, rotating sliding sleeve; 97, connecting plate; 10, fixed die. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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 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 work shall fall within the protection scope of the present utility model.

[0026] The present utility model provides two technical solutions:

[0027] Figures 1 - 5 The first embodiment is shown: an injection mold for complex-curved automotive injection parts, including a base 1, a support frame 6 fixedly installed at the top of the base 1, a fixed die 10 fixedly installed at the top of the support frame 6, a moving die 5 arranged at the top of the fixed die 10, C-shaped plates 4 fixedly installed at both ends of the outer wall of the moving die 5, spraying assemblies 8 arranged on the inner walls of both the C-shaped plates 4 and the support frame 6, a transmission assembly 9 arranged at the bottom of the base 1, and a blowing assembly 7 arranged on the outer wall of the support frame 6;

[0028] The spraying assembly 8 includes a housing 81, and a reciprocating screw rod 82 rotatably installed on the inner wall of the housing 81, and both ends of the outer wall of the reciprocating screw rod 82 penetrate through the inner wall of the housing 81;

[0029] The transmission assembly 9 includes a motor 91, the motor 91 is fixedly installed at the bottom of the base 1, and the output shaft of the motor 91 penetrates through the top of the base 1 and is fixedly installed with a second rotating rod 92;

[0030] The blowing assembly 7 includes a driving wheel 71 and a driven wheel 73.

[0031] The outer wall of the reciprocating lead screw 82 is threadedly connected with a slider 83. The slider 83 is movably inserted into the inner wall of the machine housing 81. The top end of the slider 83 is fixedly installed with a mounting frame 84. The inner wall of the mounting frame 84 is fixedly installed with a water spray pipe 85. A group of nozzles are arranged on the outer wall of the water spray pipe 85. The outer wall of the water spray pipe 85 is fixedly communicated with a connecting pipe. During the rotation of the reciprocating lead screw 82, it can drive the slider 83 to make a reciprocating motion inside the machine housing 81. The slider 83 can drive the water spray pipe 85 to reciprocate. The connecting pipe facilitates the external connection of a flexible water pipe to the water spray pipe 85. At the same time, it should be noted that the flexible water pipe should have a certain movable length so that the water spray pipe 85 will not fall off from the flexible water pipe during the movement.

[0032] One end of the outer walls of the two reciprocating lead screws 82 is fixedly installed with a first bevel gear 86. One of the two machine housings 81 is fixedly connected with the C-shaped plate 4. When the C-shaped plate 4 moves, it can drive one machine housing 81 to move together. One of the two machine housings 81 is fixedly connected with the support frame 6. The top end of the support frame 6 is a frame body that can make the cooling water sprayed by the bottom water spray pipe 85 contact the surface of the fixed mold 10. The other end of the outer wall of one of the two reciprocating lead screws 82 is fixedly connected with the driving wheel 71. When the reciprocating lead screw 82 rotates, it can drive the driving wheel 71 to rotate.

[0033] Figures 1 - 5 The second embodiment is shown. The main difference from the first embodiment is that: a vertical plate 76 is fixedly installed at the top end of the support frame 6. A first rotating rod 74 is rotatably installed on the outer wall of the vertical plate 76. The first rotating rod 74 is fixedly connected with the driven wheel 73. One end of the outer wall of the first rotating rod 74 is fixedly installed with a fan blade 75. A belt 72 is sleeved on the outer walls of the driven wheel 73 and the driving wheel 71. The diameter of the driving wheel 71 is larger than that of the driven wheel 73. The driving wheel 71 can drive the driven wheel 73 to rotate through the belt 72. Since the diameter of the driven wheel 73 is smaller, the rotation speed of the driven wheel 73 can be increased, the rotation speed of the fan blade 75 can be increased, and thus the wind force generated by the fan blade 75 can be increased.

[0034] A second bevel gear 93 is fixedly sleeved on the outer wall of the second rotating rod 92. The second bevel gear 93 is meshed with one of the two first bevel gears 86. When the second bevel gear 93 rotates, it can drive one of the first bevel gears 86 to rotate. Two sliding strips 94 are fixedly installed on the outer wall of the second rotating rod 92. A sliding bevel gear 95 and a rotating sliding sleeve 96 are slidably connected to the outer wall of the second rotating rod 92 through the two sliding strips 94. The sliding bevel gear 95 and the rotating sliding sleeve 96 can slide on the surfaces of the sliding strips 94 and the second rotating rod 92. And when the sliding strips 94 rotate, they can drive the sliding bevel gear 95 and the rotating sliding sleeve 96 to rotate. The sliding bevel gear 95 is fixedly connected to the rotating sliding sleeve 96. The sliding bevel gear 95 is meshed with one of the two first bevel gears 86. When the sliding bevel gear 95 rotates, it can drive one of the first bevel gears 86 to rotate. A connecting plate 97 is rotatably installed on the outer surface wall of the rotating sliding sleeve 96. The connecting plate 97 is fixedly connected to the C-shaped plate 4. When the C-shaped plate 4 moves, it can drive the connecting plate 97 to move. The connecting plate 97 can further drive the sliding bevel gear 95 and the rotating sliding sleeve 96 to move. And because the rotating sliding sleeve 96 is slidably connected to the connecting plate 97, there will be no interference when the rotating sliding sleeve 96 and the sliding bevel gear 95 rotate.

[0035] A frame 2 is fixedly installed at the top end of the base 1. A hydraulic rod 3 is fixedly installed at the top end of the frame 2. The output end of the hydraulic rod 3 is fixedly connected to the C-shaped plate 4. The hydraulic rod 3 can drive the C-shaped plate 4 to move. The C-shaped plate 4 can further drive the moving die 5 to move, facilitating pouring.

[0036] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0037] During operation, the hydraulic rod 3 can drive the C-shaped plate 4 and the moving mold 5 to move. At the same time, the C-shaped plate 4 can drive the connecting plate 97, the rotating sleeve 96 and the sliding bevel gear 95 to move together on the second rotating rod 92. Then, the moving mold 5 is moved to the surface of the fixed mold 10. At this time, pouring can be carried out to produce an injection mold. After the pouring is completed, the surfaces of the moving mold 5 and the fixed mold 10 can be cooled to increase the cooling rate of the injection molded part and reduce the difficulty of the injection molded part falling off from the mold. At this time, the connecting pipes on the two water spray pipes 85 can be connected to two soft water pipes outside, and then cooling water is introduced into the soft water pipes. The two water spray pipes 85 spray cooling water on the surfaces of the moving mold 5 and the fixed mold 10 through the nozzles respectively, so as to cool and lower the temperature of the mold surface. Then, in order to improve the cooling effect on the mold, the motor 91 can be started. The motor 91 drives the second rotating rod 92 to rotate. The second rotating rod 92 drives the second bevel gear 93 to rotate. The second bevel gear 93 then drives the first bevel gear 86 and the reciprocating lead screw 82 below to rotate. At the same time, the second rotating rod 92 can also drive the two slide bars 94 to rotate. The two slide bars 94 then drive the sliding bevel gear 95 and the rotating sleeve 96 to rotate. The sliding bevel gear 95 then drives the first bevel gear 86 and the reciprocating lead screw 82 above to rotate. During the rotation of the reciprocating lead screw 82, it can drive the slider 83 to move reciprocally, thereby driving the two water spray pipes 85 to move reciprocally, so that the two water spray pipes 85 can spray water and cool different positions of the moving mold 5 and the fixed mold 10, thereby improving the cooling effect on the mold. When the reciprocating lead screw 82 below rotates, it can drive the driving wheel 71 to rotate. The driving wheel 71 drives the driven wheel 73 and the first rotating rod 74 to rotate through the belt 72. The first rotating rod 74 then drives the fan blade 75 to start rotating. At the same time, since the diameter of the driving wheel 71 is larger than the diameter of the driven wheel 73, the rotating speed of the fan blade 75 can be increased, and the wind force generated by the fan blade 75 can be increased. The wind force generated by the fan blade 75 blows on the surfaces of the moving mold 5 and the fixed mold 10 to cool them. The effect of the wind can accelerate the evaporation of the moisture on the surfaces of the moving mold 5 and the fixed mold 10. The mutual cooperation of the two further improves the cooling effect of the mold.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An injection mold for a complex curved automobile injection molded part, comprising a base (1), characterized in that: A support frame (6) is fixedly mounted on the top of the base (1), a fixed mold (10) is fixedly mounted on the top of the support frame (6), a movable mold (5) is arranged on the top of the fixed mold (10), C-shaped plates (4) are fixedly mounted on both ends of the outer wall of the movable mold (5), a spraying assembly (8) is arranged on the inner wall of the C-shaped plate (4) and the support frame (6), a transmission assembly (9) is arranged on the bottom end of the base (1), and a blowing assembly (7) is arranged on the outer wall of the support frame (6); The spray assembly (8) comprises a casing (81), a reciprocating screw rod (82) being rotatably mounted on the inner wall of the casing (81), and both ends of the outer wall of the reciprocating screw rod (82) passing through the inner wall of the casing (81); The transmission assembly (9) comprises a motor (91), the motor (91) is fixedly mounted on the bottom end of the base (1), the output shaft of the motor (91) passes through the top end of the base (1), and a second rotating rod (92) is fixedly mounted thereon; The blowing assembly (7) comprises a driving wheel (71) and a driven wheel (73).

2. The injection mold for complex curved automotive injection molded parts according to claim 1, characterized in that: The outer wall of the reciprocating screw rod (82) is threadedly connected with a slider (83), the slider (83) is movably inserted into the inner wall of the casing (81), a mounting frame (84) is fixedly mounted on the top of the slider (83), a water spray pipe (85) is fixedly mounted on the inner wall of the mounting frame (84), a group of spray heads are arranged on the outer wall of the water spray pipe (85), and the outer wall of the water spray pipe (85) is fixedly connected with a connecting pipe.

3. The injection mold for complex curved automotive injection molded parts according to claim 1, characterized in that: A first bevel gear (86) is fixedly mounted on one end of the outer wall of the two reciprocating screw rods (82), one of the two housings (81) is fixedly connected to the C-shaped plate (4), one of the two housings (81) is fixedly connected to the support frame (6), and the other end of the outer wall of one of the two reciprocating screw rods (82) is fixedly connected to the driving wheel (71).

4. The injection mold for complex curved automotive injection molded parts according to claim 1, characterized in that: A vertical plate (76) is fixedly mounted on the top of the support frame (6); a first rotating rod (74) is rotatably mounted on the outer wall of the vertical plate (76); the first rotating rod (74) is fixedly connected to a driven wheel (73); a fan blade (75) is fixedly mounted on one end of the outer wall of the first rotating rod (74); a belt (72) is sleeved on the outer walls of the driven wheel (73) and the driving wheel (71); and the diameter of the driving wheel (71) is larger than the diameter of the driven wheel (73).

5. The injection mold for complex curved automotive injection molded parts according to claim 3, characterized in that: The outer wall of the second rotating rod (92) is fixedly sleeved with a second bevel gear (93), and the second bevel gear (93) is meshed with one of the two first bevel gears (86). The outer wall of the second rotating rod (92) is fixedly mounted with two slide bars (94), and the two slide bars (94) and the outer wall of the second rotating rod (92) are slidably connected with a sliding bevel gear (95) and a rotating sleeve (96), and the sliding bevel gear (95) is fixedly connected with the rotating sleeve (96), and the sliding bevel gear (95) is meshed with one of the two first bevel gears (86), and the outer wall of the rotating sleeve (96) is rotatably mounted with a connecting plate (97), and the connecting plate (97) is fixedly connected to the C-shaped plate (4).

6. The injection mold for complex curved automotive injection molded parts according to claim 1, characterized in that: A frame (2) is fixedly mounted on the top of the base (1), a hydraulic rod (3) is fixedly mounted on the top of the frame (2), and an output end of the hydraulic rod (3) is fixedly connected to a C-shaped plate (4).

Images