Rapid cooling type automobile parts injection molding device

Abstract

The present invention belongs to the field of injection molds, and in particular to a fast cooling type automobile component injection molding device. The following scheme is proposed, which includes a conical cylinder with a base and four injection mold units. The injection mold units are fixed in a ring array at the top opening of the conical cylinder. The injection mold units include a lower mold, an upper mold with a secondary heat conduction cavity, and a lifting block with a primary heat conduction cavity. The four injection mold units are provided with an annular sealing ring on the outside. The present invention adopts a four-station injection mold unit, which can simultaneously realize the injection molding, primary cooling, secondary cooling, and mold opening and unloading of the injection mold, and realize automatic mold opening and lifting and unloading, thereby improving the injection molding processing efficiency of automobile components. The secondary cooling is adopted, so that the plastic components are cooled more evenly during the cooling process, and during the cooling process, the mold itself does not need to be moved, so as to prevent the deformation of the injection molded parts caused by the shaking of the hot melt plastic inside the mold during the movement of the mold.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding devices, in particular to a rapid cooling type automobile component injection molding device. Background Art

[0002] An injection mold is a mold used to produce plastic products. It uses an injection molding machine to inject heated and molten plastic into the mold cavity of the mold, and then the desired plastic product is obtained after cooling and solidification.

[0003] As the mold works for a long time, the molten rubber will transfer heat to the mold, causing the mold temperature to rise, which in turn affects the cooling and shaping efficiency of the plastic product.

[0004] A Chinese patent with patent number CN202022424723.8 discloses an injection mold with a rapid cooling device, which discloses an injection mold, a bucket, a water pipe and a water pump. A cooling cavity for cooling water to flow through is opened on the template of the injection mold, and the water pipe is connected between the template and the bucket. The water pump draws the cooling water in the bucket into the template. When the cooling water flows through the template, the mold is cooled down, and finally the cooling water flows back into the bucket to form a circulation loop. Although it can quickly cool the injection mold, on existing automotive plastic parts, the structural strength and stability of the plastic parts are often enhanced by designing a reinforcing rib structure, which makes the local thickness of the plastic parts uneven. Using the above method to cool the injection mold at one time will cause the plastic parts to be cooled unevenly during the cooling process, resulting in deformation or shrinkage of the parts. For this reason, we propose a rapid cooling type automotive parts injection molding device. Summary of the invention

[0005] The fast cooling automobile component injection molding device proposed in the present invention solves the problem in the background art that during the cooling process of the injection mold, due to the different local thicknesses, the cooling is uneven, resulting in deformation or shrinkage of the component.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A fast cooling automobile component injection molding device comprises a conical cylinder with a base and four injection mold units, wherein the injection mold units are fixed in an annular array at the top opening of the conical cylinder, the injection mold units comprise a lower mold, an upper mold provided with a secondary heat conduction cavity, and a lifting block provided with a primary heat conduction cavity, an annular sealing ring is provided on the outside of the four injection mold units, and four groups of lower mold cavity liquid conduction holes and upper mold cavity liquid conduction holes are provided on the sealing ring, which are respectively connected with the primary heat conduction cavity and the secondary heat conduction cavity;

[0008] An annular support track is fixed on the outer wall of the conical cylinder, a top end of the support track is slidably connected with a rotating ring rotatably sleeved on the outside of the conical cylinder, and a driving mechanism for driving the rotating ring to rotate is provided on the support track;

[0009] A liquid guide box is installed above the rotating ring through a fixed bracket and is connected to the outside of the sealing ring through a sliding seal. Liquid outlet hole 1 and liquid outlet hole 2 are respectively provided at both ends of the side wall of the liquid guide box close to the sealing ring. Liquid outlet hole 1 is connected to the primary heat conduction cavity on one injection mold unit through the liquid conduction hole of the lower mold cavity, and liquid outlet hole 2 is connected to the secondary heat conduction cavity on another injection mold unit through the liquid conduction hole of the upper mold cavity.

[0010] As a preferred embodiment, a plurality of spring telescopic columns are installed between the upper mold and the lower mold of the injection mold unit, a lifting block groove is opened on the bottom wall of the mold groove on the lower mold, the lifting block is slidably connected in the lifting block groove up and down, and a reinforcing rib groove is opened on the top of the lifting block, and a liquid outlet pipe and a liquid inlet pipe connected to the primary heat conduction cavity inside the lifting block are respectively fixedly connected to the two sides of the bottom end of the lifting block, the bottom ends of the liquid outlet pipe and the liquid inlet pipe extend to the outside of the lower mold, and the liquid outlet of the liquid outlet pipe is located in the conical cylinder, and the liquid inlet pipe is connected to the inside of the liquid guide hole of the upper mold cavity through a flexible conduit.

[0011] Furthermore, an action block is provided at the top of the rotating ring, the action block corresponds to the position of the raised portion, and the action block is located at the rear end of the raised portion in the clockwise rotation direction;

[0012] A lifting rod with a spherical bottom end is installed at the middle position of the bottom end of the lifting block, and the bottom end of the lifting rod extends to the bottom of the lower mold and is slidably connected to the rotating ring and the top wall of the action block thereon;

[0013] A spring located outside the lower mold is slidably sleeved on the lifting rod.

[0014] As a preferred embodiment, an annular moving ring is provided above the four injection mold units, the moving ring is installed on the top of the fixed bracket, a protrusion is provided at a section of the moving ring, and a transmission column is installed at the top of the upper mold of the injection mold unit, the top of the transmission column is provided with an arc surface, and the transmission column is slidably connected to the moving ring and the bottom wall of the protrusion through the arc surface.

[0015] Furthermore, the protrusion is located on one side of the liquid guiding box and above one of the injection mold units.

[0016] As a preferred embodiment, the bottom end of the upper mold is provided with a convex mold extending into the mold groove, and the bottom wall of the secondary heat conduction cavity is located in the convex mold.

[0017] As a preferred embodiment, the sealing ring is fixedly mounted on the outer side walls of the four lower molds, and the inner wall of the sealing ring is slidably and sealingly connected to the side wall of the upper mold.

[0018] As a preferred embodiment, a liquid pump is installed on the fixed bracket, the water inlet end of the liquid pump is connected to the inner bottom end of the conical cylinder through a liquid suction pipe, and the water outlet end of the liquid pump is connected to the inside of the liquid guide box through a liquid discharge pipe.

[0019] As a preferred embodiment, the driving mechanism includes a motor installed on a support track, the output shaft of the motor is connected to a driving gear, the outer side wall of the rotating ring is provided with teeth arranged in a circular array, and the driving gear and the teeth are meshed with each other.

[0020] As a preferred embodiment, a plurality of heat sinks are evenly mounted on the inclined wall at the bottom end of the conical cylinder.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention proposes a fast cooling type automobile parts injection molding device. By setting four groups of injection mold units, the four groups of mold units can be made to work simultaneously and reciprocally. One group is filled with hot melt plastic raw materials, one group is primary cooling, one group is secondary cooling, and the last group is demoulding. In this way, the four groups of molds work independently, and the four processes are reciprocated, which greatly improves the injection molding efficiency of automobile parts.

[0023] Moreover, the device drives the moving ring, the liquid guide box and the sealing ring to rotate through the driving mechanism, and there is no need to move the position of the injection mold unit, thereby ensuring the stability of the hot-melt plastic inside the injection mold, enhancing its stability during the cooling and solidification process, and achieving a better injection molding effect.

[0024] The present invention proposes a rapid cooling type automobile component injection molding device. Through the arrangement of a primary heat conduction cavity and a secondary heat conduction cavity, the plastic component inside the mold can be cooled twice separately, the reinforcing rib component is cooled first, and then other positions with uniform thickness are cooled. This will make the plastic component cool more evenly during the cooling process, and the injection mold molding effect is good.

[0025] The present invention provides a rapid cooling type automobile component injection molding device. Through the arrangement of the injection mold unit, the moving ring and the raised portion, when the upper mold and the lower mold on the injection mold unit move to the demoulding position, the upper mold and the lower mold on the injection mold unit can automatically open the mold under the action of the spring telescopic column without manual operation, thereby improving the operation convenience and reducing the manual operation process.

[0026] The present invention provides a rapid cooling type automobile component injection molding device, which can quickly lift and eject the plastic part inside the mold through the lifting effect of the lifting block after the upper mold and the lower mold are opened when the injection mold unit, the lifting rod, the lifting block, the spring, the rotating ring and the action block are arranged, thereby further improving the convenience of operation and reducing the manual operation process;

[0027] The present invention adopts a four-station injection mold unit, which can simultaneously realize injection molding, primary cooling, secondary cooling and mold opening and unloading of the injection mold, and realize automatic mold opening and jacking and unloading, thereby improving the injection molding processing efficiency of automobile parts. Secondary cooling is adopted, so that the plastic parts are cooled more evenly during the cooling process, and during the cooling process, the mold itself does not need to be moved, thereby preventing deformation of the injection molded parts caused by shaking of the hot-melt plastic inside the mold during the movement of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the rapid cooling type automobile parts injection molding device proposed by the present invention;

[0029] Figure 2 This is a schematic diagram of the installation structure of four groups of injection mold units and a conical cylinder of the rapid cooling automobile parts injection molding device proposed by the present invention;

[0030] Figure 3 This is a schematic structural diagram of the conical cylinder, heat sink, support rail, rotating ring and driving mechanism of the rapid cooling automobile parts injection molding device proposed by the present invention;

[0031] Figure 4 This is a schematic structural diagram of an injection mold unit, a sealing ring and a moving ring of a rapid cooling automobile component injection molding device proposed by the present invention;

[0032] Figure 5 This is a schematic diagram of the connection between the injection mold unit, the sealing ring and the liquid guide box of the rapid cooling automobile component injection molding device proposed by the present invention;

[0033] Figure 6 This is a structural schematic diagram of the liquid guide box, the fixed bracket, the rotating ring and the moving ring of the rapid cooling type automobile parts injection molding device proposed by the present invention;

[0034] Figure 7 This is a schematic structural diagram of the rapid cooling automobile parts injection molding device proposed by the present invention when the injection mold unit is closed;

[0035] Figure 8 This is a schematic structural diagram of the injection mold unit of the rapid cooling automobile component injection molding device proposed by the present invention when the mold is opened;

[0036] Fig. 9 is a cross-sectional view of the sealing ring and the injection mold unit;

[0037] Fig.10 This is a schematic structural diagram of the lower mold of the rapid cooling type automobile component injection molding device proposed by the present invention;

[0038] Fig.11The present invention provides a schematic structural diagram of a lifting block and a reinforcing rib groove of a rapid cooling type automobile component injection molding device.

[0039] In the figure: 1, base; 2, heat sink; 3, support rail; 4, rotating ring; 401, tooth mouth; 402, action block; 5, conical cylinder; 6, driving gear; 7, motor; 8, sealing ring; 801, lower mold cavity liquid guide hole; 802, upper mold cavity liquid guide hole; 9, injection mold unit; 901, liquid inlet pipe; 902, lower mold; 9021, mold groove; 9022, lifting block groove; 903, upper mold; 903 1. Secondary heat conduction cavity; 904. Filling port; 905. Transmission column; 906. Spring telescopic column; 907. Liquid outlet pipe; 908. Spring; 909. Lifting rod; 910. Lifting block; 9101. Reinforcement rib groove; 10. Moving ring; 101. Raised portion; 11. Liquid guide box; 1101. Liquid outlet hole 1; 1102. Liquid outlet hole 2; 12. Fixed bracket; 13. Liquid discharge pipe; 14. Liquid pump; 15. Liquid extraction pipe. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] Reference Figure 1-11 A rapid cooling automobile component injection molding device comprises a conical cylinder 5 with a base 1 and four injection mold units 9, wherein the injection mold units 9 are fixed in an annular array at the top opening of the conical cylinder 5, and the injection mold units 9 comprise a lower mold 902, an upper mold 903 provided with a secondary heat conduction cavity 9031, and a lifting block 910 provided with a primary heat conduction cavity, and an annular sealing ring 8 is provided on the outside of the four injection mold units 9, and four groups of lower mold cavity liquid conduction holes 801 and upper mold cavity liquid conduction holes 802 are respectively connected with the primary heat conduction cavity and the secondary heat conduction cavity 9031;

[0042] An annular support track 3 is fixed on the outer wall of the conical cylinder 5, and a rotating ring 4 rotatably sleeved on the outside of the conical cylinder 5 is slidably connected to the top of the support track 3, and a driving mechanism for driving the rotating ring 4 to rotate is provided on the support track 3;

[0043] A liquid conducting box 11 is installed above the rotating ring 4 through a fixed bracket 12 and is connected to the outside of the sealing ring 8 in a sliding seal. The liquid conducting box 11 is provided with a liquid outlet hole 1101 and a liquid outlet hole 1102 at both ends of the side wall close to the sealing ring 8. The liquid outlet hole 1101 is connected to the primary heat conduction cavity on an injection mold unit 9 through the lower mold cavity liquid conduction hole 801, and the liquid outlet hole 2 1102 is connected to the secondary heat conduction cavity 9031 on another injection mold unit 9 through the upper mold cavity liquid conduction hole 802.

[0044] A plurality of spring telescopic columns 906 are installed between the upper mold 903 and the lower mold 902 of the injection mold unit 9, a lifting block groove 9022 is opened on the bottom wall of the mold groove 9021 on the lower mold 902, a lifting block 910 is slidably connected in the lifting block groove 9022 up and down, and a reinforcing rib groove 9101 is opened on the top of the lifting block 910, and the two sides of the bottom end of the lifting block 910 are respectively fixed with a liquid outlet pipe 907 and a liquid inlet pipe 901 connected to the primary heat conduction cavity inside the lifting block 910, the bottom ends of the liquid outlet pipe 907 and the liquid inlet pipe 901 both extend to the outside of the lower mold 902, and the liquid outlet of the liquid outlet pipe 907 is located in the conical cylinder 5, the liquid inlet pipe 901 is connected to the inside of the upper mold cavity liquid guide hole 802 through a flexible conduit, and the upper mold 903 is also equipped with a filling port 904 connected to the mold groove 9021.

[0045] The bottom end of the upper mold 903 is provided with a convex mold extending into the mold groove 9021. The bottom wall of the secondary heat conduction cavity 9031 is located in the convex mold. The convex mold is in full contact with the injection molded automobile parts, and the heat is taken away more fully and quickly.

[0046] The sealing ring 8 is fixedly mounted on the outer walls of the four lower molds 902, and the inner wall of the sealing ring 8 is slidingly and sealingly connected to the side wall of the upper mold 903. The sealing ring 8 is made of metal, and sealing rings are provided on both side walls. When the liquid guide box 11 rotates on the outer wall of the sealing ring 8, it always maintains sealing.

[0047] A liquid pump 14 is installed on the fixed bracket 12 , and the water inlet end of the liquid pump 14 is connected to the inner bottom end of the conical cylinder 5 through a liquid extraction pipe 15 , and the water outlet end of the liquid pump 14 is connected to the inside of the liquid guide box 11 through a liquid discharge pipe 13 .

[0048] The driving mechanism includes a motor 7 mounted on the support rail 3 , the output shaft of the motor 7 is connected to a driving gear 6 , and the outer wall of the rotating ring 4 is provided with teeth 401 arranged in a ring array, and the driving gear 6 and the teeth 401 are meshed with each other.

[0049] A plurality of heat sinks 2 are evenly mounted on the inclined wall at the bottom end of the conical cylinder 5. The design of the heat sink 2 allows the cooling medium to flow into the conical cylinder 5 and quickly dissipate the heat, thereby improving the cooling effect of the mold.

[0050] When in use, four groups of injection mold units 9 work simultaneously. At the same time, one group is filled with hot melt plastic raw materials, one group is primary cooling, one group is secondary cooling, and the last group is demoulding. The injection mold unit 9 of the first group of stations fills the hot melt plastic into its internal mold groove 9021 through the filling port 904. At the next station, the liquid pump 14 draws the coolant at the inner bottom end of the conical cylinder 5 into the liquid guide box 11. The coolant in the liquid guide box 11 flows into the liquid outlet hole 1101. The cooling liquid flows into the lower mold cavity liquid guide hole 801, and then flows into the primary heat conduction cavity through the conduit and the liquid inlet pipe 901, so as to cool the lifting block 910 and the reinforcing rib position of the injection molded part on it. The cooling liquid that takes away the heat flows back to the conical cylinder 5 through the liquid outlet pipe 907 and dissipates the heat. At the next station, the cooling liquid in the liquid guide box 11 flows into the secondary heat conduction cavity 9031 through the liquid outlet hole 1102 and the upper mold cavity liquid guide hole 802, so as to cool all the positions of the injection molded part and take away the heat. The hot cooling liquid directly flows back to the conical cylinder 5 through the outlet at one end of the secondary heat conduction cavity 9031 and dissipates heat. At the next workstation, open the upper mold 903 and the lower mold 902, and take out the auto parts that have been cooled by injection molding. After each work operation is completed, when the output shaft of the motor 7 drives the driving gear 6 to rotate, the tooth mouth 401 on the rotating ring 4 engages with the driving gear 6, driving the rotating ring 4 and its fixed liquid guide box 11 to rotate 90 degrees, so that the liquid outlet hole 1101 and the liquid outlet hole 2 1102 on the liquid guide box 11 are connected with the primary heat conduction cavity and the secondary heat conduction cavity 9031 on the next workstation again, so that each injection mold unit 9 enters the next working unit in sequence, and so on. Each injection mold unit 9 can cyclically complete the four steps of filling hot-melt plastic raw materials, primary cooling, secondary cooling and demolding. The time for the steps of different injection mold units 9 is different, and each step has sufficient time to complete, which is convenient to operate and has high injection molding efficiency.

[0051] Embodiment 2: Figure 4 , 6 As shown, different from Example 1, in order to realize automatic mold opening and closing, an annular moving ring 10 is provided above the four injection mold units 9, and the moving ring 10 is installed on the top of the fixed bracket 12. A protrusion 101 is provided at a section of the moving ring 10, and a transmission column 905 is installed at the top of the upper mold 903 of the injection mold unit 9. The top of the transmission column 905 is provided with an arc surface, and the transmission column 905 is slidably connected with the moving ring 10 and the bottom wall of the protrusion 101 through the arc surface.

[0052] The protrusion 101 is located on one side of the liquid guiding box 11 and above one of the injection mold units 9 .

[0053] When the injection mold unit 9 does not need to open the mold, the bottom surface of the moving ring 10 will produce pressure on the transmission column 905, suppressing the elasticity of the spring telescopic column 906, and the upper mold 903 and the lower mold 902 always remain in a close state. During the rotation of the moving ring 10, when the raised portion 101 thereon contacts the injection mold unit 9, the moving ring 10 no longer produces pressure on the transmission column 905. At this time, under the elastic action of the spring telescopic column 906, the upper mold 903 and the lower mold 902 can be automatically opened, making it convenient for the staff to take the injection molded automobile parts.

[0054] Embodiment 3, as Figure 3 , 6 , 7, 8, and 9, which are different from embodiments 1 and 2, in order to realize the rapid removal of the injection molded parts, an action block 402 is provided at the top of the rotating ring 4, and inclined arc surfaces are provided on both sides of the action block 402. The position of the action block 402 corresponds to that of the raised portion 101, and the action block 402 is located at the rear end of the raised portion 101 in the clockwise rotation direction. The position of the rear end can enable the injection mold unit 9 to open the mold first, and then realize the action of the lifting block 910;

[0055] A lifting rod 909 with a spherical bottom end is installed at the middle position of the bottom end of the lifting block 910. The bottom end of the lifting rod 909 extends to the bottom of the lower mold 902 and is slidably connected to the rotating ring 4 and the top wall of the action block 402 thereon.

[0056] The lifting rod 909 is slidably sleeved with a spring 908 located outside the lower mold 902. Through the setting of the spring 908, the lifting rod 909 and the lifting block 910 can be quickly reset after the lifting is completed, preventing the situation where the lifting rod 909 and the lifting block 910 cannot be reset due to low gravity.

[0057] When the output shaft of the motor 7 drives the driving gear 6 to rotate, the tooth mouth 401 on the rotating ring 4 meshes with the driving gear 6, driving the rotating ring 4 and the action block 402 thereon to rotate. When the action block 402 contacts the lifting rod 909 on the injection mold unit 9, the lifting rod 909 compresses the spring 908 to drive the lifting block 910 to move upward, thereby lifting the injection molded automobile parts in the mold groove 9021 out, making it convenient for the staff to take them out quickly.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rapid cooling automobile component injection molding device, comprising a conical cylinder (5) with a base (1) and four injection mold units (9), characterized in that: The injection mold units (9) are fixed in an annular array at the top opening of the conical cylinder (5), the injection mold units (9) comprising a lower mold (902), an upper mold (903) provided with a secondary heat conduction cavity (9031), and a lifting block (910) provided with a primary heat conduction cavity, and an annular sealing ring (8) is provided on the outside of the four injection mold units (9), and the sealing ring (8) is provided with four groups of lower mold cavity liquid conduction holes (801) and upper mold cavity liquid conduction holes (802) which are respectively connected to the primary heat conduction cavity and the secondary heat conduction cavity (9031); An annular support track (3) is fixed on the outer wall of the conical cylinder (5), a top end of the support track (3) is slidably connected to a rotating ring (4) rotatably sleeved on the outside of the conical cylinder (5), and a driving mechanism for driving the rotating ring (4) to rotate is provided on the support track (3); A liquid guide box (11) is installed above the rotating ring (4) via a fixed bracket (12) and is connected to the outside of the sealing ring (8) in a sliding seal. Two ends of the side wall of the liquid guide box (11) close to the sealing ring (8) are respectively provided with a first liquid outlet hole (1101) and a second liquid outlet hole (1102). The first liquid outlet hole (1101) is connected to a primary heat conduction cavity on an injection mold unit (9) via a lower mold cavity liquid guide hole (801), and the second liquid outlet hole (1102) is connected to a secondary heat conduction cavity (9031) on another injection mold unit (9) via an upper mold cavity liquid guide hole (802); A plurality of spring telescopic columns (906) are installed between the upper mold (903) and the lower mold (902) of the injection mold unit (9); a lifting block groove (9022) is provided on the bottom wall of the mold groove (9021) on the lower mold (902); the lifting block (910) is slidably connected in the lifting block groove (9022) up and down, and a reinforcing rib groove (9101) is provided at the top of the lifting block (910); a liquid outlet pipe (907) and a liquid inlet pipe (901) connected to the primary heat conduction cavity inside the lifting block (910) are respectively fixedly connected on both sides of the bottom end of the lifting block (910); the bottom ends of the liquid outlet pipe (907) and the liquid inlet pipe (901) both extend to the outside of the lower mold (902); the liquid outlet of the liquid outlet pipe (907) is located in the conical cylinder (5); and the liquid inlet pipe (901) is connected to the inside of the liquid conduction hole (802) of the upper mold cavity through a flexible conduit; An action block (402) is provided at the top end of the rotating ring (4), the action block (402) corresponds to the position of the raised portion (101), and the action block (402) is located at the rear end of the raised portion (101) in the clockwise rotation direction; A lifting rod (909) with a spherical bottom end is installed at the middle position of the bottom end of the lifting block (910), and the bottom end of the lifting rod (909) extends to the bottom of the lower mold (902) and is slidably connected to the rotating ring (4) and the top wall of the action block (402) thereon; A spring (908) located outside the lower mold (902) is slidably sleeved on the lifting rod (909); An annular moving ring (10) is provided above the four injection mold units (9), the moving ring (10) is mounted on the top of a fixed bracket (12), a protrusion (101) is provided at a section of the moving ring (10), a transmission column (905) is installed at the top of the upper mold (903) of the injection mold unit (9), a curved surface is provided at the top of the transmission column (905), and the transmission column (905) is slidably connected to the moving ring (10) and the bottom wall of the protrusion (101) via the curved surface.

2. The rapid cooling automobile parts injection molding device according to claim 1, characterized in that: The protruding portion (101) is located on one side of the liquid guide box (11) and is located above one of the injection mold units (9).

3. The rapid cooling automobile parts injection molding device according to claim 1, characterized in that: The bottom end of the upper mold (903) is provided with a convex mold extending into the mold groove (9021), and the bottom wall of the secondary heat conduction cavity (9031) is located in the convex mold.

4. The rapid cooling automobile parts injection molding device according to claim 1, characterized in that: The sealing ring (8) is fixedly mounted on the outer side walls of the four lower moulds (902), and the inner wall of the sealing ring (8) is slidably and sealingly connected to the side wall of the upper mould (903).

5. The rapid cooling automobile parts injection molding device according to claim 1, characterized in that: A liquid pump (14) is mounted on the fixed bracket (12); a water inlet of the liquid pump (14) is connected to the inner bottom end of the conical cylinder (5) via a liquid extraction pipe (15); and a water outlet of the liquid pump (14) is connected to the interior of the liquid guide box (11) via a liquid discharge pipe (13).

6. The rapid cooling automobile parts injection molding device according to claim 1, characterized in that: The driving mechanism comprises a motor (7) mounted on a support track (3); an output shaft of the motor (7) is connected to a driving gear (6); an outer wall of the rotating ring (4) is provided with teeth (401) arranged in a ring array; the driving gear (6) and the teeth (401) are meshed with each other.

7. The rapid cooling automobile parts injection molding device according to claim 1, characterized in that: A plurality of heat sinks (2) are evenly mounted on the inclined wall at the bottom end of the conical cylinder (5).

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