Injection molding device for molding precision plastic part

Abstract

The injection molding device comprises a supporting table, a water tank is fixedly connected to one side of the supporting table, a left mold is fixedly connected to the upper surface of the supporting table, a right mold is slidably connected to the upper surface of the supporting table, and a cooling assembly is arranged in the water tank. The cooling assembly comprises a pressurizing box arranged in the water tank, a first piston plate arranged in the pressurizing box, a transverse rod, a longitudinal rod, a first pull rod, a first pipeline and a spray head, wherein the transverse rod, the longitudinal rod, the first pull rod, the first pipeline and the spray head are used for enabling cooling liquid to cool the left mold through the first piston plate. And the temperature of a formed plastic part product can be rapidly reduced, the problem that the temperature of the formed plastic product is high, so that the plastic product is prone to deformation due to manual taking is solved, meanwhile, the cooling effect on the cooling liquid is achieved, and the left mold can be conveniently cooled through the cooling liquid when the plastic part is machined again.

Description

Technical Field

[0001] The invention relates to the field related to plastic part molding, in particular to an injection molding device for precision plastic part molding. Background Art

[0002] In today's industrial production field, plastic parts are widely used in many industries such as electronics, automobiles, medical treatment, aerospace, etc. due to their many advantages such as light weight, low cost, and strong plasticity. As the requirements for product precision and quality in various industries continue to increase, the market demand for precision plastic parts is also growing;

[0003] The injection molding device is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastic plastics or thermosetting plastics. It can heat the plastic and apply high pressure to the molten plastic to make it eject and fill the mold cavity. Existing precision plastic parts are generally injection molded by using injection molding devices;

[0004] Traditional injection molding devices have gradually exposed many defects when facing the production of precision plastic parts. Since the heat dissipation efficiency of the mold itself is low, especially during continuous injection molding operations, the heat accumulated in the mold is difficult to dissipate quickly, which will prolong the cooling time of the product and reduce production efficiency. Summary of the invention

[0005] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides an injection molding device for molding precision plastic parts.

[0006] The present invention is implemented by constructing an injection molding device for molding precision plastic parts, comprising a support platform, one side of the support platform is fixedly connected to a water tank, the upper surface of the support platform is fixedly connected to a left mold, and the upper surface of the support platform is slidably connected to a right mold;

[0007] A cooling component is arranged inside the water tank, and the cooling component includes a pressurizing box arranged inside the water tank, a first piston plate arranged inside the pressurizing box, and a cross bar, a longitudinal bar, a first pull rod, a first pipe and a nozzle for cooling the left mold by the cooling liquid through the first piston plate;

[0008] The surface of the water tank is provided with a heat dissipation assembly, which includes a disturbance plate arranged inside the water tank and an upper rectangular box for quickly cooling the coolant inside the water tank through the disturbance plate, a second pipeline, a lower rectangular box, a disturbance plate, a third piston plate, a pull rope, a first magnet, a second magnet, a second piston plate, a rectangular counterweight, a spring and a top plate;

[0009] An auxiliary component is arranged on one side of the left mold, and the auxiliary component includes a U-shaped guide hopper arranged on the surface of the support platform and a first guide plate and a second guide plate for cooling the cooling liquid inside the U-shaped guide hopper.

[0010] Preferably, the interior of the water tank is fixedly connected to a pressurizing box, the interior of the pressurizing box is fixedly connected to an H-shaped plate, a first pull rod is inserted in a square slide groove opened in the H-shaped plate, one end of the first pull rod is fixedly connected to a first piston plate, the first piston plate is inserted in the interior of the pressurizing box, the first piston plate and the pressurizing box are sealingly and slidably connected, the end of the first pull rod away from the first piston plate is fixedly connected to a longitudinal rod, the bottom end of the longitudinal rod is in contact with the inner bottom surface of the water tank, and the longitudinal rod and the water tank are slidably connected, the top end of the longitudinal rod is fixedly connected to a cross rod, the end of the cross rod away from the longitudinal rod is fixedly connected to the upper surface of the right mold, and two side liquid inlet grooves are opened on both sides of the pressurizing box.

[0011] Preferably, a hollow groove is provided on the side of the left mold away from the right mold, a first pipe is inserted into the side of the pressurizing box away from the longitudinal rod, a transfer liquid box is provided above the water tank, one end of the first pipe away from the pressurizing box is inserted into the bottom surface of the transfer liquid box, the transfer liquid box is connected to the interior of the pressurizing box through the first pipe, nozzles are respectively installed in a plurality of slots provided on a side of the transfer liquid box close to the left mold, and a support plate is fixedly connected to the side of the transfer liquid box away from the left mold.

[0012] Preferably, a U-shaped slider is sleeved on the surface of the cross bar, the U-shaped slider is slidably connected to the cross bar, and the U-shaped slider is fixedly connected to the upper surface of the left mold.

[0013] Preferably, a transverse limit plate is fixedly connected to the upper surface of the support platform, and transverse sliding rods are respectively inserted into two sockets opened inside the transverse limit plate. The transverse limit plate and the transverse sliding rod are slidably connected, and one end of the two transverse sliding rods is respectively fixedly connected to one side of the right mold.

[0014] Preferably, a lower rectangular box is fixedly inserted in a side square groove opened on a side of the water tank away from the support platform, a third piston plate is inserted inside the lower rectangular box, the third piston plate and the lower rectangular box are sealingly and slidingly connected, a second pull rod is fixedly connected to one side of the third piston plate, and a disturbance plate is fixedly connected to the end of the second pull rod away from the third piston plate, a pull rope is arranged between the disturbance plate and the longitudinal rod, and both ends of the pull rope are fixedly connected to the disturbance plate and the longitudinal rod respectively.

[0015] Preferably, an upper rectangular box is fixedly connected to one side of the water tank, a second piston plate is inserted into the interior of the upper rectangular box, the upper rectangular box and the second piston plate are sealingly and slidably connected, a rectangular counterweight block is fixedly connected to the upper surface of the second piston plate, a spring is fixedly connected to the upper surface of the rectangular counterweight block, a longitudinal optical axis is arranged inside the spring, one end of the longitudinal optical axis is fixedly connected to the rectangular counterweight block, the other end of the longitudinal optical axis longitudinally passes through the top plate, the top plate and the longitudinal optical axis are slidably connected, the top plate is fixedly connected to the interior of the upper rectangular box, a second pipe is inserted into the bottom end of the upper rectangular box, an end of the second pipe away from the upper rectangular box is inserted on the side of the lower rectangular box away from the support platform, and the upper rectangular box is connected to the interior of the lower rectangular box through the second pipe.

[0016] Preferably, two symmetrically arranged guide rods are transversely inserted inside the disturbance plate, one end of the two guide rods is respectively fixedly connected to the water tank, and the disturbance plate and the guide rods are slidably connected.

[0017] Preferably, a first magnet is fixedly connected to a side of the disturbance plate away from the pull rope, a second magnet is arranged on a side of the first magnet away from the disturbance plate, and the second magnet is fixedly connected to the water tank.

[0018] Preferably, the upper surface of the pressurizing box is fixedly connected with a U-shaped guide bucket, the first pipeline longitudinally penetrates the U-shaped guide bucket and is fixedly connected to the U-shaped guide bucket, the support plate is fixedly connected to the upper surface of the U-shaped guide bucket, one end of the U-shaped guide bucket is inserted into an embedding groove opened on the upper surface of the support platform, the interior of the U-shaped guide bucket is fixedly connected with a plurality of equidistantly arranged first guide plates, and one end of each of the first guide plates is fitted and fixedly connected to one side of the U-shaped guide bucket, and the other end of each of the first guide plates leaves a gap with the other side of the U-shaped guide bucket, and the interior of the U-shaped guide bucket is fixedly connected with a plurality of equidistantly arranged second guide plates, and each of the second guide plates is located between two adjacent first guide plates, one end of each of the second guide plates leaves a gap with one side of the U-shaped guide bucket, and the other end of each of the second guide plates is fitted and fixedly connected to the other side of the U-shaped guide bucket.

[0019] The present invention has the following advantages: The present invention provides an injection molding device for precision plastic parts molding through improvement, which has the following improvements compared with the same type of equipment:

[0020] The injection molding device for precision plastic parts molding described in the present invention is advantageous for rapidly reducing the temperature of the plastic parts product after molding by providing a cooling component, thereby solving the problem that the temperature of the plastic products after molding is high and the plastic products are easily deformed when being handled manually.

[0021] The present invention discloses an injection molding device for molding precision plastic parts. A heat dissipation component is provided. When the right mold moves in a direction away from the left mold, the longitudinal rod drives the disturbance plate to move synchronously, so that the coolant inside the water tank flows slowly. That is, in the process of preparing for injection molding, the coolant is prevented from splashing onto the right mold and the left mold, thereby avoiding affecting the molding effect of the precision plastic parts. After the injection molding is completed, when the right mold moves in a direction away from the left mold, the disturbance plate is quickly moved horizontally toward the longitudinal rod under the elastic potential energy of the spring and the gravitational potential energy of the rectangular counterweight block, so that the coolant inside the water tank flows quickly, thereby quickly reducing the temperature of the coolant inside the water tank. At this time, even if the coolant splashes onto the right mold and the left mold, the injection molded parts have already been molded, and it will not affect the molded injection molded parts.

[0022] The injection molding device for precision plastic parts molding described in the present invention is provided with an auxiliary component so that the coolant flowing to the U-shaped guide bucket flows in a serpentine path, thereby increasing the flow path of the coolant, facilitating the heat dissipation effect of the coolant, thereby facilitating cooling the left mold by the coolant when the plastic parts are processed again. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 Sectional view at AA in the middle;

[0025] Figure 3 For the present invention Figure 2 The enlarged view of point A in the middle;

[0026] Figure 4 It is a structural schematic diagram of the left mold and the U-shaped slider in the present invention;

[0027] Figure 5 It is a schematic structural diagram of the first guide plate, the second guide plate and the U-shaped guide bucket in the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the H-shaped plate and the pressurized box in the present invention;

[0029] Figure 7 It is a structural schematic diagram of the first pull rod and the first piston plate in the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the lower rectangular box and the upper rectangular box in the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the rectangular counterweight and the spring in the present invention;

[0032] Fig.10It is a schematic diagram of the structure of the disturbance plate and the guide rod in the present invention;

[0033] In the figure:

[0034] 1. Support table; 2. Water tank; 3. Right mold; 4. Left mold;

[0035] 5. Cooling assembly; 51. U-shaped slider; 52. Horizontal bar; 53. Vertical bar; 54. Pressurizing box; 55. First pipeline; 56. Transfer liquid box; 57. Nozzle; 58. Hollow groove; 59. First piston plate; 510. First pull rod; 511. H-shaped plate; 512. Square slide groove; 513. Side liquid inlet groove; 514. Support plate; 515. Horizontal slide rod; 516. Horizontal limit plate;

[0036] 6. heat dissipation assembly; 61. upper rectangular box; 62. top plate; 63. longitudinal optical axis; 64. spring; 65. rectangular counterweight; 66. second piston plate; 67. second pipe; 68. lower rectangular box; 69. third piston plate; 610. second pull rod; 611. side square groove; 612. disturbance plate; 613. first magnet; 614. second magnet; 615. guide rod; 616. pull rope;

[0037] 7. Auxiliary components; 71. U-shaped guide hopper; 72. First guide plate; 73. Second guide plate; 74. Embedded groove. DETAILED DESCRIPTION

[0038] The following will be combined with the attached Figure 1-10 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-10 As shown, an injection molding device for precision plastic parts molding of the present invention comprises a support platform 1, a water tank 2 is fixedly connected to one side of the support platform 1, a left mold 4 is fixedly connected to the upper surface of the support platform 1, and a right mold 3 is slidably connected to the upper surface of the support platform 1;

[0040] A cooling assembly 5 is provided inside the water tank 2, and the cooling assembly 5 includes a pressurizing box 54 provided inside the water tank 2, a first piston plate 59 provided inside the pressurizing box 54, and a cross bar 52, a longitudinal bar 53, a first pull rod 510, a first pipe 55, and a nozzle 57 for cooling the left mold 4 with the coolant through the first piston plate 59;

[0041] The surface of the water tank 2 is provided with a heat dissipation assembly 6, which includes a disturbance plate 612 arranged inside the water tank 2 and an upper rectangular box 61 for quickly cooling the coolant inside the water tank 2 through the disturbance plate 612, a second pipe 67, a lower rectangular box 68, a disturbance plate 612, a third piston plate 69, a pull rope 616, a first magnet 613, a second magnet 614, a second piston plate 66, a rectangular counterweight 65, a spring 64 and a top plate 62;

[0042] An auxiliary component 7 is provided on one side of the left mold 4 , and the auxiliary component 7 includes a U-shaped guide hopper 71 provided on the surface of the support platform 1 , and a first guide plate 72 and a second guide plate 73 for cooling the coolant inside the U-shaped guide hopper 71 .

[0043] The interior of the water tank 2 is fixedly connected to a pressurizing box 54, and the interior of the pressurizing box 54 is fixedly connected to an H-shaped plate 511. A first pull rod 510 is inserted in a square slide groove 512 opened inside the H-shaped plate 511, and one end of the first pull rod 510 is fixedly connected to a first piston plate 59, which is inserted into the interior of the pressurizing box 54. The first piston plate 59 and the pressurizing box 54 are sealed and slidably connected. The end of the first pull rod 510 away from the first piston plate 59 is fixedly connected to a longitudinal rod 53, and the bottom end of the longitudinal rod 53 is in contact with the inner bottom surface of the water tank 2, and the longitudinal rod 53 and the water tank 2 are slidably connected. The top of the longitudinal rod 53 is fixedly connected to a cross rod 52, and the end of the cross rod 52 away from the longitudinal rod 53 is fixedly connected to the upper surface of the right mold 3. Two side liquid inlet grooves 513 are opened on both sides of the pressurizing box 54.

[0044] A hollow groove 58 is provided on the side of the left mold 4 away from the right mold 3, a first pipe 55 is inserted on the side of the pressurizing box 54 away from the longitudinal rod 53, a transfer liquid box 56 is provided above the water tank 2, one end of the first pipe 55 away from the pressurizing box 54 is inserted on the bottom surface of the transfer liquid box 56, the transfer liquid box 56 is connected to the inside of the pressurizing box 54 through the first pipe 55, and nozzles 57 are respectively installed in a plurality of slots provided on one side of the transfer liquid box 56 close to the left mold 4, and a support plate 514 is fixedly connected to the side of the transfer liquid box 56 away from the left mold 4.

[0045] A U-shaped slider 51 is sleeved on the surface of the cross bar 52 . The U-shaped slider 51 is slidably connected to the cross bar 52 . The U-shaped slider 51 is fixedly connected to the upper surface of the left mold 4 .

[0046] A transverse limit plate 516 is fixedly connected to the upper surface of the support platform 1, and transverse slide bars 515 are respectively inserted into two sockets opened inside the transverse limit plate 516. The transverse limit plate 516 and the transverse slide bar 515 are slidably connected, and one end of the two transverse slide bars 515 is respectively fixedly connected to one side of the right mold 3.

[0047] A lower rectangular box 68 is fixedly inserted in a side square groove 611 opened on the side of the water tank 2 away from the support platform 1, and a third piston plate 69 is inserted inside the lower rectangular box 68. The third piston plate 69 and the lower rectangular box 68 are sealed and slidably connected. A second pull rod 610 is fixedly connected to one side of the third piston plate 69, and a disturbance plate 612 is fixedly connected to the end of the second pull rod 610 away from the third piston plate 69. A pull rope 616 is arranged between the disturbance plate 612 and the longitudinal rod 53, and the two ends of the pull rope 616 are respectively fixedly connected to the disturbance plate 612 and the longitudinal rod 53.

[0048] An upper rectangular box 61 is fixedly connected to one side of the water tank 2, and a second piston plate 66 is inserted inside the upper rectangular box 61. The upper rectangular box 61 and the second piston plate 66 are sealed and slidably connected. A rectangular counterweight 65 is fixedly connected to the upper surface of the second piston plate 66, and a spring 64 is fixedly connected to the upper surface of the rectangular counterweight 65. A longitudinal optical axis 63 is arranged inside the spring 64. One end of the longitudinal optical axis 63 is fixedly connected to the rectangular counterweight 65, and the other end of the longitudinal optical axis 63 longitudinally passes through the top plate 62. The top plate 62 and the longitudinal optical axis 63 are slidably connected. The top plate 62 is fixedly connected to the inside of the upper rectangular box 61, and a second pipe 67 is inserted at the bottom end of the upper rectangular box 61. The end of the second pipe 67 away from the upper rectangular box 61 is inserted on the side of the lower rectangular box 68 away from the support platform 1. The upper rectangular box 61 is connected to the inside of the lower rectangular box 68 through the second pipe 67.

[0049] Two symmetrically arranged guide rods 615 are inserted transversely inside the disturbance plate 612 , one end of the two guide rods 615 is respectively fixedly connected to the water tank 2 , and the disturbance plate 612 and the guide rods 615 are slidably connected.

[0050] A first magnet 613 is fixedly connected to a side of the disturbance plate 612 away from the pull rope 616 , and a second magnet 614 is provided on a side of the first magnet 613 away from the disturbance plate 612 . The second magnet 614 is fixedly connected to the water tank 2 .

[0051] A U-shaped guide scoop 71 is fixedly connected to the upper surface of the pressurizing box 54, the first pipe 55 longitudinally penetrates the U-shaped guide scoop 71 and is fixedly connected to the U-shaped guide scoop 71, the support plate 514 is fixedly connected to the upper surface of the U-shaped guide scoop 71, one end of the U-shaped guide scoop 71 is inserted into an embedding groove 74 opened on the upper surface of the support platform 1, and the interior of the U-shaped guide scoop 71 is fixedly connected to a plurality of equidistantly arranged first guide plates 72, and the interior of the U-shaped guide scoop 71 is fixedly connected to a plurality of equidistantly arranged second guide plates 73, and each second guide plate 73 is located between two adjacent first guide plates 72.

[0052] The present invention provides an injection molding device for molding precision plastic parts through improvement, and its working principle is as follows;

[0053] First, when the injection molding device is used to perform injection molding on precision plastic products, a suitable coolant is added to the inside of the water tank 2. Since the positions of the right mold 3 and the left mold 4 correspond, and after the external telescopic mechanism is connected to the right mold 3, the operation of the external telescopic mechanism can make the right mold 3 slide on the surface of the support platform 1, and the right mold 3 moves horizontally under the limitation of the transverse slide bar 515 and the transverse limit plate 516. The movement of the right mold 3 drives the transverse bar 52 to slide inside the U-shaped slider 51, and the movement of the transverse bar 52 drives the longitudinal bar 53 to move synchronously, and the movement of the longitudinal bar 53 drives the first pull rod 510 to slide in the square slide groove 51. 2, the right mold 3 moves toward the left mold 4 so that the first piston plate 59 moves toward the direction close to the H-shaped plate 511. The movement of the first piston plate 59 extracts the gas inside the pressurizing box 54, so that the external gas flows into the pressurizing box 54 along the inside of the first pipe 55. When the first piston plate 59 moves to the position of the side liquid inlet groove 513 and continues to move toward the direction of the H-shaped plate 511, the coolant flows into the pressurizing box 54 along the inside of the side liquid inlet groove 513, so that the coolant is located in the space formed by the first piston plate 59 and the pressurizing box 54;

[0054] Second, when the distance between the right mold 3 and the left mold 4 is appropriate, the heated plastic liquid is injected from the injection port on the surface of the right mold 3 into the space between the right mold 3 and the left mold 4. After the plastic product is formed, the right mold 3 is pulled to move away from the left mold 4 under the action of the telescopic mechanism. During the movement of the right mold 3, the first pull rod 510 drives the first piston plate 59 to move away from the H-shaped plate 511. After the first piston plate 59 moves out of the position of the side liquid inlet groove 513, the first piston plate 59 and the pressurizing box 54 form a sealed space, and as the plastic product is formed, the right mold 3 is pulled away from the left mold 4 under the action of the telescopic mechanism. The synchronous movement of the right mold 3 and the first piston plate 59 allows the coolant in the pressurized box 54 to be injected into the transfer liquid box 56 along the first pipe 55, and sprayed into the hollow groove 58 along the nozzle 57. When the coolant enters the hollow groove 58, the temperature of the left mold 4 can be quickly reduced, thereby reducing the temperature of the plastic product after molding, making it convenient for the staff to take it, which is conducive to quickly reducing the temperature of the plastic product after molding, and solves the problem that the temperature of the plastic product after molding is high and the plastic product is easily deformed when it is taken manually.

[0055] Third, when the coolant is sprayed into the interior of the left mold 4, the coolant flows along the interior of the left mold 4 and flows into the interior of the U-shaped guide hopper 71. The first guide plate 72 and the second guide plate 73 are alternately arranged inside the U-shaped guide hopper 71. The structures of the first guide plate 72, the second guide plate 73 and the U-shaped guide hopper 71 can be referred to. Figure 5As shown, under the restriction of the position of the first guide plate 72 and the second guide plate 73 inside the U-shaped guide hopper 71, the coolant flowing to the U-shaped guide hopper 71 flows in a snake shape, thereby increasing the flow path of the coolant, facilitating the heat dissipation of the coolant, thereby facilitating cooling the left mold 4 by the coolant when processing the plastic part again;

[0056] Fourth, in the process of the right mold 3 moving toward the left mold 4, the movement of the right mold 3 drives the longitudinal rod 53 to move synchronously. When the longitudinal rod 53 and the surface of the side liquid inlet groove 513 are in contact, the movement of the longitudinal rod 53 drives the disturbance plate 612 to move synchronously until the disturbance plate 612 moves to make the surfaces of the first magnet 613 and the second magnet 614 in contact. Under the action of the magnetic suction force, the position of the disturbance plate 612 after movement can be fixed. In the process of the disturbance plate 612 moving in the direction away from the longitudinal rod 53, the movement of the disturbance plate 612 drives the third piston plate 69 to move synchronously through the second pull rod 610. In the process of the third piston plate 69 moving in the direction away from the second pull rod 610, the inner part of the lower rectangular box 68 can be moved. The gas is injected into the interior of the upper rectangular box 61 through the second pipe 67, and as the gas inside the upper rectangular box 61 increases, the second piston plate 66 moves upward, and in the process of moving upward, the second piston plate 66 drives the rectangular counterweight block 65 to move upward synchronously, and when the first magnet 613 and the second magnet 614 are in contact with each other, the top of the spring 64 and the bottom surface of the top plate 62 are in contact with each other, and the spring 64 is squeezed, so that the spring 64 has elastic potential energy, and under the joint action of the gravity of the rectangular counterweight block 65, the second pull rod 610 has the force to push the disturbance plate 612, and under the action of the magnetic attraction of the first magnet 613 and the second magnet 614, the disturbance plate 612 is temporarily unable to continue to move;

[0057] Fifth, when the right mold 3 moves in a direction away from the left mold 4, the movement of the right mold 3 drives the longitudinal rod 53 to move synchronously, and after the right mold 3 moves a certain distance, the longitudinal rod 53 pulls the pull rope 616, and when the right mold 3 continues to move, the disturbance plate 612 is pulled to move by the pull rope 616. When the second magnet 614 and the first magnet 613 move to a suitable distance, the disturbance plate 612 moves quickly toward the direction of the longitudinal rod 53 under the elastic potential energy of the spring 64 and the gravitational potential energy of the rectangular counterweight 65. In the process of the longitudinal rod 53 driving the disturbance plate 612 to move synchronously, the coolant inside the water tank 2 is Slow flow, that is, in the process of preparing for injection molding, avoid splashing of coolant onto the right mold 3 and the left mold 4, thereby avoiding affecting the molding effect of precision plastic parts. After the injection molding is completed, when the right mold 3 moves away from the left mold 4, the disturbance plate 612 is quickly moved horizontally toward the direction of the longitudinal rod 53 under the elastic potential energy of the spring 64 and the gravitational potential energy of the rectangular counterweight block 65, so that the coolant inside the water tank 2 flows quickly, thereby quickly reducing the temperature of the coolant inside the water tank 2. At this time, even if coolant splashes onto the right mold 3 and the left mold 4, the injection molded parts have already been formed, and it will not affect the injection molded parts after molding.

[0058] The above shows and describes the basic principle, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0059] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An injection molding device for molding precision plastic parts, comprising a support platform (1), one side of the support platform (1) is fixedly connected to a water tank (2), the upper surface of the support platform (1) is fixedly connected to a left mold (4), and the upper surface of the support platform (1) is slidably connected to a right mold (3); Features: A cooling component (5) is arranged inside the water tank (2), and the cooling component (5) comprises a pressurizing box (54) arranged inside the water tank (2), a first piston plate (59) arranged inside the pressurizing box (54), and a cross bar (52), a longitudinal bar (53), a first pull rod (510), a first pipe (55) and a nozzle (57) for cooling the left mold (4) with cooling liquid through the first piston plate (59); A heat dissipation assembly (6) is arranged on the surface of the water tank (2), and the heat dissipation assembly (6) comprises a disturbance plate (612) arranged inside the water tank (2), an upper rectangular box (61) for rapidly cooling the cooling liquid inside the water tank (2) through the disturbance plate (612), a second pipe (67), a lower rectangular box (68), the disturbance plate (612), a third piston plate (69), a pull rope (616), a first magnet (613), a second magnet (614), a second piston plate (66), a rectangular counterweight (65), a spring (64) and a top plate (62); An auxiliary component (7) is provided on one side of the left mold (4), and the auxiliary component (7) comprises a U-shaped guide hopper (71) provided on the surface of the support platform (1) and a first guide plate (72) and a second guide plate (73) for cooling the cooling liquid inside the U-shaped guide hopper (71).

2. The injection molding device for precision plastic parts molding according to claim 1, characterized in that: The interior of the water tank (2) is fixedly connected to a pressurizing box (54), and the interior of the pressurizing box (54) is fixedly connected to an H-shaped plate (511). A first pull rod (510) is inserted into a square slide groove (512) provided inside the H-shaped plate (511). One end of the first pull rod (510) is fixedly connected to a first piston plate (59). The first piston plate (59) is inserted into the interior of the pressurizing box (54). The first piston plate (59) and the pressurizing box (54) are sealed and slidably connected. The end of the first pull rod (510) away from the first piston plate (59) is fixedly connected to a longitudinal rod (53), the bottom end of the longitudinal rod (53) is in contact with the inner bottom surface of the water tank (2), and the longitudinal rod (53) and the water tank (2) are slidably connected, the top end of the longitudinal rod (53) is fixedly connected to a cross rod (52), and the end of the cross rod (52) away from the longitudinal rod (53) is fixedly connected to the upper surface of the right mold (3), and two side liquid inlet grooves (513) are provided on both sides of the pressurized box (54).

3. The injection molding device for precision plastic parts molding according to claim 1, characterized in that: A hollow groove (58) is provided on the side of the left mold (4) away from the right mold (3); a first pipe (55) is inserted on the side of the pressurizing box (54) away from the longitudinal rod (53); a transfer liquid box (56) is provided above the water tank (2); one end of the first pipe (55) away from the pressurizing box (54) is inserted on the bottom surface of the transfer liquid box (56); the transfer liquid box (56) is connected to the inside of the pressurizing box (54) through the first pipe (55); nozzles (57) are respectively installed in a plurality of slots provided on a side of the transfer liquid box (56) close to the left mold (4); and a support plate (514) is fixedly connected to the side of the transfer liquid box (56) away from the left mold (4).

4. The injection molding device for precision plastic parts molding according to claim 1, characterized in that: A U-shaped slider (51) is sleeved on the surface of the cross bar (52), the U-shaped slider (51) and the cross bar (52) are slidably connected, and the U-shaped slider (51) is fixedly connected to the upper surface of the left mold (4).

5. The injection molding device for precision plastic parts molding according to claim 1, characterized in that: A transverse limiting plate (516) is fixedly connected to the upper surface of the support platform (1), and transverse sliding rods (515) are respectively inserted into two insertion holes opened inside the transverse limiting plate (516). The transverse limiting plate (516) and the transverse sliding rod (515) are slidably connected, and one end of the two transverse sliding rods (515) is respectively fixedly connected to one side of the right mold (3).

6. The injection molding device for precision plastic parts molding according to claim 1, characterized in that: A lower rectangular box (68) is fixedly inserted into a side square groove (611) opened on a side of the water tank (2) away from the support platform (1), and a third piston plate (69) is inserted inside the lower rectangular box (68). The third piston plate (69) and the lower rectangular box (68) are sealed and slidably connected. A second pull rod (610) is fixedly connected to one side of the third piston plate (69), and a disturbance plate (612) is fixedly connected to the end of the second pull rod (610) away from the third piston plate (69). A pull rope (616) is provided between the disturbance plate (612) and the longitudinal rod (53), and the two ends of the pull rope (616) are respectively fixedly connected to the disturbance plate (612) and the longitudinal rod (53).

7. The injection molding device for precision plastic parts molding according to claim 1, characterized in that: An upper rectangular box (61) is fixedly connected to one side of the water tank (2), a second piston plate (66) is inserted inside the upper rectangular box (61), the upper rectangular box (61) and the second piston plate (66) are sealingly and slidably connected, a rectangular counterweight (65) is fixedly connected to the upper surface of the second piston plate (66), a spring (64) is fixedly connected to the upper surface of the rectangular counterweight (65), a longitudinal optical axis (63) is arranged inside the spring (64), one end of the longitudinal optical axis (63) is fixed to the rectangular counterweight (65), and the longitudinal optical axis (63) is fixed to the rectangular counterweight (65). The other end of the longitudinal optical axis (63) longitudinally penetrates the top plate (62), the top plate (62) and the longitudinal optical axis (63) are slidably connected, the top plate (62) is fixedly connected to the interior of the upper rectangular box (61), a second pipe (67) is inserted at the bottom end of the upper rectangular box (61), one end of the second pipe (67) away from the upper rectangular box (61) is inserted at a side of the lower rectangular box (68) away from the support platform (1), and the upper rectangular box (61) is connected to the interior of the lower rectangular box (68) through the second pipe (67).

8. The injection molding device for precision plastic parts molding according to claim 1, characterized in that: Two symmetrically arranged guide rods (615) are transversely inserted inside the disturbance plate (612), one end of the two guide rods (615) is respectively fixedly connected to the water tank (2), and the disturbance plate (612) and the guide rods (615) are slidably connected.

9. The injection molding device for precision plastic parts molding according to claim 1, characterized in that: A first magnet (613) is fixedly connected to a side of the disturbance plate (612) away from the pull rope (616), a second magnet (614) is provided on a side of the first magnet (613) away from the disturbance plate (612), and the second magnet (614) is fixedly connected to the water tank (2).

10. The injection molding device for precision plastic parts molding according to claim 3, characterized in that: The upper surface of the pressurizing box (54) is fixedly connected to a U-shaped guide hopper (71); the first pipeline (55) longitudinally penetrates the U-shaped guide hopper (71) and is fixedly connected to the U-shaped guide hopper (71); the support plate (514) is fixedly connected to the upper surface of the U-shaped guide hopper (71); one end of the U-shaped guide hopper (71) is inserted into an embedding groove (74) provided on the upper surface of the support platform (1); the interior of the U-shaped guide hopper (71) is fixedly connected to a plurality of equidistantly arranged first guide plates (72); the interior of the U-shaped guide hopper (71) is fixedly connected to a plurality of equidistantly arranged second guide plates (73), and each of the second guide plates (73) is located between two adjacent first guide plates (72).

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