A vehicle lampshade injection mold with rapid cooling function and method

Abstract

The present invention relates to the technical field of injection molds, and specifically discloses an injection mold and method for a lampshade of a vehicle lamp with a rapid cooling function, comprising a connecting pipe for conveying a coolant arranged on the side walls of a lower mold body and an upper mold body, an extrusion mechanism arranged on the top of the upper mold body, and a lubrication mechanism arranged in the upper mold body and linked with the extrusion mechanism, wherein the extrusion mechanism comprises a first ring body, a second ring body is arranged on the top of the first ring body for lifting, and a lifting assembly for driving the second ring body to lift is arranged on the top of the first ring body. When the hydraulic cylinder drives the upper mold body to move downward and engage with the lower mold body through the extrusion mechanism, the present invention applies pressure to the edge of the upper mold body, so that the upper mold body as a whole is uniformly pressed downward, thereby avoiding the traditional hydraulic rod only contacting the top center of the upper mold body, resulting in different downward pressures at the edge and the center of the upper mold body, thereby avoiding affecting the quality of injection molding between the upper mold body and the lower mold body.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to an injection mold for a lampshade of a vehicle lamp with a rapid cooling function and a method thereof. Background Art

[0002] Headlight covers are usually manufactured through injection molding. During the injection molding process, the mold is usually driven by a hydraulic cylinder to fit the mold, so that the thermoplastic plastic or thermosetting plastic in the mold is made into the shape of the headlight cover, and the cooling mechanism in the mold is used to quickly cool the headlight cover, so that the headlight cover can be quickly formed and convenient for subsequent demolding, so as to perform injection molding production of the headlight cover.

[0003] The disclosure number is CN113119402B, which is an injection mold for automobile parts with a cooling function. The problem raised in the background technology is that the mold often needs to be used in conjunction with a hydraulic cylinder during use. After the hydraulic cylinder has been in use for a long time, lubrication is often required between the hydraulic rod and the slide rod. The traditional lubrication method is that the worker directly sprays the lubricant on the slide rod with a lubrication bottle. At this time, the lubricant is very easy to drip onto the workbench, which needs to be cleaned again.

[0004] Based on the existing technology, there are the following problems:

[0005] The mold required for injection molding usually includes an upper mold body and a lower mold body. The headlight cover is molded and demoulded by fitting and separating the upper mold body and the lower mold body. When the upper mold body and the lower mold body are fitted, the positions of the upper mold body and the lower mold body are usually positioned by the positioning rods and positioning grooves at their ends to ensure the quality of product injection molding. The positioning rods and positioning grooves are usually in close contact to ensure the accuracy of positioning the upper mold body and the lower mold body. However, during multiple fitting and separation processes, friction and other factors affect the smoothness of the positioning rod entering or pulling out of the positioning groove, thereby affecting the upper mold body. The smoothness of the fit between the mold body and the lower mold body may easily lead to wrinkles on the product, and when the hydraulic rod drives the upper mold body to move and fit with the lower mold body, the telescopic shaft of the hydraulic rod is usually fixed at the center of the upper mold body, resulting in uneven force at the edge of the upper mold body, which affects the quality of product injection molding. Referring to the above application documents, it only adds lubricating oil to the telescopic shaft of the hydraulic rod, but cannot lubricate the positioning rod and the positioning groove, which has certain shortcomings. In order to solve the above problems, a headlight cover injection mold and method with rapid cooling function are proposed. Summary of the invention

[0006] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a headlight cover injection mold and method with a rapid cooling function, which is convenient for lubricating the positioning rods and positioning grooves for positioning the upper mold body and the lower mold body, thereby improving the stability of the mold for injection molding of the headlight cover.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an injection mold for a lampshade with a rapid cooling function, comprising a lower mold body and an upper mold body, wherein the lower mold body and the upper mold body are respectively provided with a positioning groove and a positioning rod on the side close to each other, and further comprising a connecting pipe for conveying a coolant arranged on the side walls of the lower mold body and the upper mold body, an extrusion mechanism arranged on the top of the upper mold body, and a lubrication mechanism arranged in the upper mold body and linked with the extrusion mechanism, wherein the extrusion mechanism comprises:

[0008] The first ring body is fixed to the top of the upper mold body by bolts, the second ring body is lifted and lowered on the top of the first ring body, a lifting assembly for driving the second ring body to lift and lower is provided on the top of the first ring body, a pressure assembly arranged in a circular array and used to squeeze the edge of the upper mold body is provided on the outer wall of the second ring body, and a third ring body is provided on the top of the second ring body, and the pressure assembly includes:

[0009] The first connecting plate is hinged to the outer wall of the second ring body, and the top of the first ring body is hinged with a fourth connecting plate. The first connecting plate and the fourth connecting plate are hinged so that when the second ring body descends, the fourth connecting plate is pressed down, thereby applying pressure to the edge of the upper mold body.

[0010] Furthermore, the pressure applying component also includes:

[0011] A second connecting plate is hinged to a side of the first connecting plate away from the second ring body, a third connecting plate is provided on the side of the second connecting plate away from the first connecting plate, a first adjusting component for adjusting the distance between the second connecting plate and the third connecting plate is provided on the top of the third connecting plate, and a second adjusting component is provided on a side of the third connecting plate and the fourth connecting plate close to each other;

[0012] The support plate is fixed on the top of the upper mold body, and the top of the support plate is in contact with the bottom of the fourth connecting plate when the fourth connecting plate is in a horizontal position. The top of the support plate is provided with a transmission hole extending into the upper mold body.

[0013] Further, the first adjustment component includes:

[0014] The plug plate is fixedly arranged on a side of the second connecting plate close to the third connecting plate, and a slot for sleeve-mounting the plug plate is provided on a side of the third connecting plate close to the second connecting plate, and adjustment holes arranged at intervals and extending into the plug plate are provided on the top of the third connecting plate;

[0015] A fixing frame is fixedly arranged on the top of the third connecting plate, and an adjusting rod extending into the slot is sleeved on the top of the fixing frame, and the adjusting rod is inserted into the adjusting holes at different positions to adjust the distance between the second connecting plate and the third connecting plate;

[0016] An adjusting ring is fixedly sleeved on the side wall of one end of the adjusting rod located on the inner side of the fixing frame, and a first spring is sleeved on the side wall of one end of the adjusting rod located on the inner side of the fixing frame and located on the top of the adjusting ring, so that the adjusting rod has a tendency to move downward, and a pull handle is fixedly provided on one end of the adjusting rod located on the top of the fixing frame, and a first through hole extending into the slot and used for sleeved the adjusting rod is opened on the top of the fixing frame, and the side wall diameter of the pull handle is larger than the inner wall diameter of the first through hole.

[0017] Further, the second adjustment component includes:

[0018] A moving rod is fixedly arranged at the center of one side of the third connecting plate close to the fourth connecting plate, a moving groove is provided inside the fourth connecting plate, and the moving rod extends into the moving groove, a first electromagnet is fixedly sleeved on a side wall of one end of the moving rod located in the moving groove, a guide rod extending into the fourth connecting plate is fixedly arranged on one side of the third connecting plate close to the fourth connecting plate and on both sides of the moving rod, and a guide hole for sleeve-mounting the guide rod is provided on one side of the fourth connecting plate close to the third connecting plate, so as to limit the movement of the third connecting plate;

[0019] The second electromagnet is fixedly sleeved on the inner wall of the movable groove, and the second electromagnet and the first electromagnet are both annularly designed, the inner wall of the second electromagnet is sleeved on the side wall of the movable rod, and the side where the second electromagnet and the first electromagnet are close to each other has the same magnetic pole.

[0020] Furthermore, the second adjustment component also includes:

[0021] A stop plate is slidably disposed on the inner wall of the moving groove so that the stop plate moves along the axial direction of the moving groove;

[0022] The pressure sensor is movably arranged in the movable groove, the inner wall of the movable groove is fixedly provided with a second spring, and the second spring is fixedly connected to a side of the pressure sensor away from the abutment plate.

[0023] Further, the lifting assembly comprises:

[0024] A first tooth plate, fixedly arranged on both sides of the top of the first ring body;

[0025] The mounting frame is fixed on both sides of the bottom of the third ring body, and the first tooth plate is slidably connected to the side of the mounting frame away from the third ring body, and the second tooth plate is slidably provided on the side of the mounting frame close to the third ring body, and the bottom of the second tooth plate is fixedly connected to the inner wall of the second ring body, and a transmission mechanism connecting the first tooth plate and the second tooth plate is provided on the inner side of the mounting frame, so that when the first tooth plate moves downward, it drives the second tooth plate to move downward, and the moving distance of the second tooth plate is greater than the moving distance of the first tooth plate, thereby driving the second ring body to move downward, so as to apply pressure to the edge of the upper mold body through the pressure assembly.

[0026] Further, the lubrication mechanism comprises:

[0027] A pressure rod is sleeved in the transmission hole, a transmission plate symmetrically arranged at the center point of the upper mold body is hinged to the lower end of the side wall of the pressure rod, a blocking rod is hinged to the side of the transmission plate away from the pressure rod, and the top center of the transmission plate is hinged to the inside of the upper mold body so that the transmission plate can perform a lever movement;

[0028] The oil storage tank is fixedly arranged inside the upper mold body, and an oil guide nozzle is fixedly arranged at the bottom oil discharge end of the oil storage tank, and an oil guide groove is opened at the bottom of the oil guide nozzle. The inner wall of the oil guide groove is fixedly provided with fixed blocks arranged in a circular array, and the inner side of the fixed block is fixedly connected to the upper end of the side wall of the positioning rod. The top, bottom of the fixed block and the top of the positioning rod are all arc-shaped. The diameter of the upper end of the inner wall of the oil guide groove is smaller than the diameter of the lower end of the inner wall of the oil guide groove, and the bottom of the blocking rod extends into the oil guide groove.

[0029] Furthermore, the lubrication mechanism further comprises:

[0030] The plug is fixedly arranged at the bottom of the plugging rod and is designed in an inverted truncated cone shape. The lower end of the side wall of the plugging rod is fixedly sleeved with a first sealing ring arranged at intervals to seal between the oil guide groove and the plugging rod;

[0031] A pressure ring is fixed on the side wall of one end of the blocking rod located in the oil storage tank, and the side wall of the pressure ring is provided with oil guide holes arranged in a circular array. The side wall of the blocking rod is located in the oil storage tank and a third spring is sleeved on the top of the pressure ring so that the blocking rod and the plug have a tendency to move downward. A second through hole for sleeve-mounting the blocking rod is provided on the top of the oil storage tank, and the inner wall of the second through hole is fixedly sleeved with second sealing rings arranged at intervals to seal between the blocking rod and the top of the oil storage tank.

[0032] Furthermore, the lubrication mechanism further comprises:

[0033] A hinged rod is hinged to a side of the transmission plate away from the pressure rod, and a side wall of one end of the blocking rod located at the top of the oil storage tank is provided with a moving groove for sleeve-mounting the hinged rod, so that the hinged rod can move vertically along the moving groove;

[0034] The threaded tube is threadedly connected to the side wall of the blocking rod and is located at the top of the movable through groove. A pressing tube is fixedly arranged at the bottom of the threaded tube, and the inner wall of the pressing tube is sleeved on the side wall of the blocking rod to limit the height of the transmission plate. The top of the blocking rod is designed to protrude outward to limit the threaded tube from separating from the blocking rod.

[0035] The hinge hole is opened at the top of one side of the transmission plate close to the pressure rod, and the inner wall diameter of the hinge hole is larger than the side wall diameter of the pressure rod, so that the pressure rod has space to rotate in the hinge hole, and a cavity is opened inside the upper mold body for the transmission plate and the blocking rod to move.

[0036] The present invention also provides a method for using the vehicle lamp shade injection mold with a rapid cooling function. The method uses the vehicle lamp shade injection mold with a rapid cooling function, and comprises the following steps:

[0037] S1: conveying the raw material of the injection-molded headlight cover into the lower mold body, and then driving the upper mold body to move downward and fit with the lower mold body, so as to perform injection molding on the headlight cover;

[0038] S2: After injection molding, coolant is transported into the upper mold body and the lower mold body through the connecting pipe, so as to cool the molded headlight cover to assist the injection molding of the headlight cover.

[0039] The present invention provides a lampshade injection mold and method with a rapid cooling function. Compared with the prior art, it has the following beneficial effects:

[0040] 1. The present invention uses an extrusion mechanism to enable the hydraulic cylinder to drive the upper mold body to move downward and fit with the lower mold body, and applies pressure to the edge of the upper mold body, so that the upper mold body as a whole applies pressure downward evenly, thereby avoiding the situation where the traditional hydraulic rod only contacts the top center of the upper mold body, resulting in different downward pressures at the edge and center of the upper mold body, thereby avoiding affecting the quality of injection molding between the upper mold body and the lower mold body.

[0041] 2. The present invention sets a support plate so that the bottom of the fourth connecting plate is in contact with the top of the support plate when it is horizontal, so that the force applied to the top of the upper mold body is more uniform. The present invention drives the extrusion mechanism to extrude the edge of the upper mold body while the hydraulic cylinder drives the upper mold body to move, which is convenient for practical use.

[0042] 3. The present invention adjusts the distance between the second connecting plate and the third connecting plate to facilitate adjustment of the position where pressure is applied to the upper mold body, thereby being suitable for injection molds of different sizes. By ensuring a certain moving distance between the third connecting plate and the fourth connecting plate, excessive extrusion between the fourth connecting plate, the second connecting plate, the third connecting plate and the first connecting plate can be avoided when the upper mold body and the lower mold body are fully engaged.

[0043] 4. The present invention sets the first electromagnet and the second electromagnet so that the third connecting plate needs to overcome the repulsive force between the first electromagnet and the second electromagnet when moving, thereby avoiding affecting the downward pressure. By setting a pressure sensor, it is convenient to monitor the position where the repulsive force drives the first electromagnet to move, so as to understand the degree to which the first connecting plate drives the third connecting plate to overcome the repulsive force and move, thereby facilitating the adjustment of the repulsive force between the first electromagnet and the second electromagnet according to the downward pressure of the first connecting plate, which is convenient for practical use.

[0044] 5. The present invention uses a lubricating mechanism to allow lubricating oil to flow between the positioning groove and the positioning rod to lubricate the positioning rod and the positioning groove, thereby avoiding setbacks in the operation of the upper mold body and the lower mold body, which affects the stability of molding. The lubricating mechanism is linked with the extrusion mechanism, so that lubricating oil is added after the upper mold body and the lower mold body are engaged, avoiding the lubricating oil from flowing onto the injection molding machine, and facilitating better contact between the lubricating oil and the positioning rod and the positioning groove, thereby improving the lubrication effect.

[0045] 6. The present invention enables the articulated rod to have a certain moving space in the moving groove, and limits the moving space of the articulated rod in the moving groove through a threaded tube and a sleeve, so as to control the transmission plate to drive the blocking rod to move or not, thereby facilitating the adjustment of whether to add lubricating oil and the amount of lubricating oil added according to actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the overall structure of the injection mold for a lampshade with a rapid cooling function applicable to the present invention;

[0047] Figure 2 It is a schematic diagram of the structure of the lubrication mechanism and the extrusion mechanism of the present invention;

[0048] Figure 3 It is a schematic diagram of the transverse and longitudinal cross-sectional structure of the upper mold body of the present invention;

[0049] Figure 4 It is a schematic diagram of the structure of the extrusion mechanism of the present invention;

[0050] Figure 5 It is a schematic diagram of the structure of the lifting assembly of the present invention;

[0051] Figure 6 It is a schematic cross-sectional structural diagram of the mounting frame of the present invention;

[0052] Figure 7 It is a schematic diagram of the structure of the pressure-applying assembly of the present invention;

[0053] Figure 8 It is a schematic cross-sectional structure diagram of the fourth connecting plate, the third connecting plate, the second connecting plate and the supporting plate of the present invention;

[0054] Fig. 9 It is a transverse cross-sectional view of the fourth connecting plate and a schematic structural diagram of the first adjusting assembly of the present invention;

[0055] Fig.10 For the present invention Figure 8 Schematic diagram of the enlarged structure of B;

[0056] Fig.11 It is a schematic diagram of the structure of the pressure-applying assembly and the lubrication mechanism of the present invention;

[0057] Fig.12 It is a schematic diagram of the structure of the lubrication mechanism of the present invention;

[0058] Fig.13 It is a schematic cross-sectional structure diagram of the oil storage tank and the oil guide nozzle of the present invention;

[0059] Fig.14 It is a schematic diagram of an inverted structure of a cross-section of an oil storage tank and an oil guide nozzle of the present invention;

[0060] Fig.15 It is a schematic diagram of the structure of the hydraulic cylinder, the second ring body, the first ring body and the third ring body of the present invention;

[0061] Fig.16 It is a schematic diagram of the inverted structure of the lower mold body of the present invention.

[0062] Reference numerals in the above drawings: 1, upper mold body; 2, lower mold body; 3, positioning rod; 4, lubrication mechanism; 5, connecting pipe; 6, extrusion mechanism; 7, hydraulic cylinder; 71, cylinder body; 72, piston rod;

[0063] 41. Oil storage tank; 42. Transmission plate; 43. Pressure rod; 44. Hinge hole; 45. Threaded pipe; 46. Blocking rod; 47. Second sealing ring; 48. First sealing ring; 49. Fixed block; 491. Plug; 492. Oil guide nozzle; 493. Oil guide groove; 494. Hinge rod; 495. Moving through groove; 496. Pressure pipe; 497. Pressure ring;

[0064] 61. third ring body; 62. lifting assembly; 63. pressure assembly; 64. first ring body; 65. second ring body;

[0065] 621, mounting frame; 622, second tooth plate; 623, first tooth plate; 624, transmission mechanism;

[0066] 631, first connecting plate; 632, first adjusting component; 6321, adjusting rod; 6322, fixing frame; 6323, plug plate; 6324, adjusting ring; 633, supporting plate; 634, second connecting plate; 635, third connecting plate; 636, fourth connecting plate; 637, second adjusting component; 6371, moving rod; 6372, first electromagnet; 6373, pressure sensor; 6374, abutment plate; 6375, moving groove; 6376, second electromagnet; 638, transmission hole. DETAILED DESCRIPTION

[0067] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0068] Example 1: Please refer to Figure 1 , Figure 2 and Figure 3 , an injection mold for a lampshade with a rapid cooling function, comprising a lower mold body 2 and an upper mold body 1, wherein a positioning groove and a positioning rod 3 are respectively arranged on the side of the lower mold body 2 and the upper mold body 1 close to each other, and further comprising a connecting pipe 5 for conveying a coolant arranged on the side walls of the lower mold body 2 and the upper mold body 1, an extrusion mechanism 6 arranged on the top of the upper mold body 1, and a lubrication mechanism 4 arranged in the upper mold body 1 and linked with the extrusion mechanism 6;

[0069] See also Figure 3 , Figure 4 , Figure 7 and Figure 8 , the extrusion mechanism 6 comprises:

[0070] The first ring body 64 is fixed to the top of the upper mold body 1 by bolts, and the top of the first ring body 64 is provided with a second ring body 65 for lifting and lowering. The top of the first ring body 64 is provided with a lifting assembly 62 for driving the second ring body 65 to lift and lower. The outer wall of the second ring body 65 is provided with a pressure assembly 63 arranged in a circular array and used to squeeze the edge of the upper mold body 1. The top of the second ring body 65 is provided with a third ring body 61, and the pressure assembly 63 includes:

[0071] The first connecting plate 631 is hinged to the outer wall of the second ring body 65, and the top of the first ring body 64 is hinged with a fourth connecting plate 636. The first connecting plate 631 and the fourth connecting plate 636 are hinged so that when the second ring body 65 descends, the fourth connecting plate 636 is pressed down, thereby applying pressure to the edge of the upper mold body 1.

[0072] The pressure applying assembly 63 further includes:

[0073] The second connecting plate 634 is hinged to the side of the first connecting plate 631 away from the second ring body 65. The side of the second connecting plate 634 away from the first connecting plate 631 is provided with a third connecting plate 635. The top of the third connecting plate 635 is provided with a first adjustment component 632 for adjusting the distance between the second connecting plate 634 and the third connecting plate 635. The side of the third connecting plate 635 and the fourth connecting plate 636 close to each other is provided with a second adjustment component 637.

[0074] The support plate 633 is fixed on the top of the upper mold body 1, and the top of the support plate 633 is in contact with the bottom of the fourth connecting plate 636 when it is in a horizontal position. The top of the support plate 633 is provided with a transmission hole 638 extending into the upper mold body 1.

[0075] See also Figure 5 and Figure 6 , the lifting assembly 62 includes:

[0076] The first tooth plate 623 is fixedly disposed on both sides of the top of the first ring body 64;

[0077] The mounting frame 621 is fixedly arranged on both sides of the bottom of the third ring body 61, and the first tooth plate 623 is slidably connected to the side of the mounting frame 621 away from the third ring body 61, and the second tooth plate 622 is slidably provided on the side of the mounting frame 621 close to the third ring body 61, and the bottom of the second tooth plate 622 is fixedly connected to the inner wall of the second ring body 65, and a transmission mechanism 624 is provided on the inner side of the mounting frame 621 for transmission connection between the first tooth plate 623 and the second tooth plate 622, so that when the first tooth plate 623 moves downward, the second tooth plate 622 is driven to move downward, and the moving distance of the second tooth plate 622 is greater than the moving distance of the first tooth plate 623, thereby driving the second ring body 65 to move downward, so as to apply pressure to the edge of the upper mold body 1 through the pressure-applying component 63.

[0078] In the specific implementation, after the cylinder body 71 of the hydraulic cylinder 7 is fixed to the third ring body 61 and the piston rod 72 of the hydraulic cylinder 7 is fixed to the top of the upper mold body 1, the hydraulic cylinder 7 drives the piston rod 72 to move downward, so that the upper mold body 1 is engaged with the lower mold body 2 to form the lampshade of the vehicle lamp. In this process, the upper mold body 1 moves downward and drives the first ring body 64 and the first tooth plate 623 to move downward. The first tooth plate 623 drives the second tooth plate 622 to move downward through the transmission mechanism 624, thereby driving the second ring body 65 to move downward, and the second ring body 65 drives the first connecting plate 63 The top of the upper mold body 1 rotates downward, thereby driving the second connecting plate 634, the third connecting plate 635 and the fourth connecting plate 636 to rotate downward to squeeze the support plate 633, thereby squeezing the edge of the upper mold body 1, so that the upper mold body 1 as a whole is uniformly pressed downward, thereby avoiding the traditional hydraulic rod 43 only contacting the top center of the upper mold body 1, thereby causing the upper mold body 1 to move downward and embed into the lower mold body 2. The reverse force of the raw material and the like causes the pressure applied downward at the edge and the center of the upper mold body 1 to be different, thereby avoiding affecting the quality of the injection molding between the upper mold body 1 and the lower mold body 2;

[0079] The transmission mechanism 624 for transmitting the first tooth plate 623 and the second tooth plate 622 includes two gears rotatably connected to the mounting frame 621, the two gears mesh with each other, and the sides of the two gears away from each other are respectively meshed with the first tooth plate 623 and the second tooth plate 622, so that when the first tooth plate 623 moves downward, it drives the second tooth plate 622 to move downward, and through the transmission between the two gears, and the transmission between the two gears and the first tooth plate 623 and the second tooth plate 622, the distance the second tooth plate 622 moves downward is greater than the distance the first tooth plate 623 moves downward, so that it is convenient to apply pressure to the edge of the upper mold body 1;

[0080] The first tooth plate 623 and the second tooth plate 622 are both slidably connected to the mounting frame 621, and the second tooth plate 622 penetrates the third ring body 61 and is slidably connected to the third ring body 61, so as to limit the vertical movement of the first tooth plate 623 and the second tooth plate 622, thereby improving the stability of the movement of the first tooth plate 623 and the second tooth plate 622, and limit the second ring body 65, thereby improving the stability of applying pressure to the upper mold body 1;

[0081] By setting the support plate 633, the bottom of the fourth connecting plate 636 when in a horizontal position fits with the top of the support plate 633, so that the force applied to the top of the upper mold body 1 is more uniform;

[0082] By connecting with the external coolant pipeline through the connecting pipe 5, it is convenient to transport the coolant to the cooling pipeline built in the upper mold body 1 and the lower mold body 2, so as to quickly cool the upper mold body 1 and the lower mold body 2, facilitate the injection molding of the lampshade, and facilitate the subsequent demolding. The cooling pipeline built into the upper mold body 1 and the lower mold body 2 is the existing technology, which is not drawn in the figure and will not be described here.

[0083] See also Figure 8 and Fig. 9 , the first adjustment component 632 includes:

[0084] The plug plate 6323 is fixedly arranged on a side of the second connecting plate 634 close to the third connecting plate 635, and a slot for sleeve-mounting the plug plate 6323 is provided on a side of the third connecting plate 635 close to the second connecting plate 634, and adjustment holes are provided on the top of the third connecting plate 635 and are arranged at intervals and extend into the plug plate 6323;

[0085] A fixing frame 6322 is fixedly mounted on the top of the third connecting plate 635. An adjusting rod 6321 extending into the slot is sleeved on the top of the fixing frame 6322. The adjusting rod 6321 is inserted into adjusting holes at different positions to adjust the distance between the second connecting plate 634 and the third connecting plate 635.

[0086] An adjusting ring 6324 is fixedly mounted on the side wall of one end of the adjusting rod 6321 located on the inner side of the fixing frame 6322. A first spring is mounted on the side wall of one end of the adjusting rod 6321 located on the inner side of the fixing frame 6322 and located on the top of the adjusting ring 6324, so that the adjusting rod 6321 has a tendency to move downward. A pull handle is fixedly mounted on one end of the adjusting rod 6321 located on the top of the fixing frame 6322. A first through hole extending into the slot and used for mounting the adjusting rod 6321 is opened on the top of the fixing frame 6322, and the side wall diameter of the pull handle is larger than the inner wall diameter of the first through hole.

[0087] In the specific implementation, the handle is pulled, and the handle drives the adjusting rod 6321 and the adjusting ring 6324 to squeeze the first spring and move upward, so that the adjusting rod 6321 is disengaged from the adjusting hole. At this time, the distance of the plug plate 6323 inserted into the slot can be adjusted, so as to adjust the spacing between the second connecting plate 634 and the third connecting plate 635, so as to adjust the position of applying pressure to the upper mold body 1, so as to be suitable for injection molds of different sizes. After the second connecting plate 634 is moved to a suitable position, the handle is released. Under the action of the first spring, the adjusting rod 6321 is inserted into the adjusting hole, so as to fix the plug plate 6323 and the second connecting plate 634.

[0088] The pull handle is provided to limit the top of the adjusting rod 6321 to prevent the adjusting rod 6321 from being separated from the fixing frame 6322.

[0089] See also Figure 7 , Figure 8 and Fig.10 , the second adjustment component 637 includes:

[0090] The moving rod 6371 is fixedly arranged at the center of one side of the third connecting plate 635 close to the fourth connecting plate 636. A moving groove 6375 is provided inside the fourth connecting plate 636, and the moving rod 6371 extends into the moving groove 6375. A first electromagnet 6372 is fixedly sleeved on the side wall of one end of the moving rod 6371 located in the moving groove 6375. A guide rod extending into the fourth connecting plate 636 is fixedly arranged on one side of the third connecting plate 635 close to the fourth connecting plate 636 and on both sides of the moving rod 6371. A guide hole for sleeve-mounting the guide rod is provided on one side of the fourth connecting plate 636 close to the third connecting plate 635, so as to limit the movement of the third connecting plate 635.

[0091] The second electromagnet 6376 is fixedly mounted on the inner wall of the movable groove 6375, and the second electromagnet 6376 and the first electromagnet 6372 are both annular in design, the inner wall of the second electromagnet 6376 is mounted on the side wall of the movable rod 6371, and the side where the second electromagnet 6376 and the first electromagnet 6372 are close to each other have the same magnetic pole.

[0092] The second adjustment component 637 also includes:

[0093] The abutment plate 6374 is slidably disposed on the inner wall of the moving groove 6375 so that the abutment plate 6374 moves along the axial direction of the moving groove 6375;

[0094] The pressure sensor 6373 is movably disposed in the movable groove 6375 . A second spring is fixedly disposed on the inner wall of the movable groove 6375 , and the second spring is fixedly connected to a side of the pressure sensor 6373 away from the abutment plate 6374 .

[0095] In a specific implementation, when the first connecting plate 631 drives the second connecting plate 634, the third connecting plate 635 and the fourth connecting plate 636 to rotate downward and squeeze the support plate 633, in order to ensure that the upper mold body 1 and the lower mold body 2 are fully engaged, excessive squeezing occurs between the fourth connecting plate 636, the second connecting plate 634, the third connecting plate 635 and the first connecting plate 631. For this reason, the first connecting plate 631 drives the third connecting plate 635, the second connecting plate 634 and the fourth connecting plate 636 to rotate downward, and the second adjusting component 637 is used to adjust the fourth connecting plate 636, the second connecting plate 634 and the fourth connecting plate 636. There is a certain moving distance between the third connecting plate 635 and the fourth connecting plate 636, so that the third connecting plate 635 and the second connecting plate 634 can move to the side away from the second ring body 65. When the third connecting plate 635 is moved by the second adjusting component 637, the third connecting plate 635 moves with the first connecting plate 631 and the second connecting plate 634, thereby driving the moving rod 6371 and the first electromagnet 6372 to move along the inner wall of the moving groove 6375, so that there is a certain moving distance between the third connecting plate 635 and the fourth connecting plate 636;

[0096] By setting the first electromagnet 6372 and the second electromagnet 6376, the third connecting plate 635 needs to overcome the repulsive force between the first electromagnet 6372 and the second electromagnet 6376 when moving, so as to avoid affecting the downward pressure. By setting the pressure sensor 6373, it is convenient to monitor the position of the first electromagnet 6372 driven by the repulsive force, so as to understand the degree to which the first connecting plate 631 drives the third connecting plate 635 to overcome the repulsive force and move, so as to adjust the repulsive force between the first electromagnet 6372 and the second electromagnet 6376 according to the downward pressure of the first connecting plate 631, which is convenient for actual use.

[0097] The second spring is provided to facilitate the pressure sensor 6373 to always fit with the first electromagnet 6372, thereby facilitating the actual monitoring of the situation in which the first connecting plate 631 overcomes the repulsive force and is pressed downward.

[0098] Example 2: Please refer to Fig.11 , Fig.12 , Fig.13 and Fig.14The difference between this embodiment and the first embodiment is that the lubrication mechanism 4 includes:

[0099] The pressure rod 43 is sleeved in the transmission hole 638. The lower end of the side wall of the pressure rod 43 is hinged with a transmission plate 42 arranged symmetrically with the center point of the upper mold body 1. The side of the transmission plate 42 away from the pressure rod 43 is hinged with a blocking rod 46. The top center of the transmission plate 42 is hinged with the inside of the upper mold body 1 so that the transmission plate 42 can perform a lever movement.

[0100] The oil storage tank 41 is fixedly arranged inside the upper mold body 1, and an oil guide nozzle 492 is fixedly arranged at the bottom oil discharge end of the oil storage tank 41. An oil guide groove 493 is opened at the bottom of the oil guide nozzle 492, and the inner wall of the oil guide groove 493 is fixedly provided with fixed blocks 49 arranged in a circular array. The inner side of the fixed block 49 is fixedly connected to the upper end of the side wall of the positioning rod 3. The top and bottom of the fixed block 49 and the top of the positioning rod 3 are all arc-shaped. The upper end diameter of the inner wall of the oil guide groove 493 is smaller than the lower end diameter of the inner wall of the oil guide groove 493, and the bottom of the blocking rod 46 extends into the oil guide groove 493.

[0101] The lubrication mechanism 4 also includes:

[0102] The plug 491 is fixedly arranged at the bottom of the blocking rod 46 and is designed in an inverted truncated cone shape. The lower end of the side wall of the blocking rod 46 is fixedly sleeved with a first sealing ring 48 arranged at intervals to seal between the oil guide groove 493 and the blocking rod 46;

[0103] The pressure ring 497 is fixed on the side wall of one end of the blocking rod 46 located in the oil storage tank 41, and the side wall of the pressure ring 497 is provided with oil guide holes arranged in a circular array. The side wall of the blocking rod 46 located in the oil storage tank 41 and the top of the pressure ring 497 is sleeved with a third spring so that the blocking rod 46 and the plug 491 have a tendency to move downward. The top of the oil storage tank 41 is provided with a second through hole for sleeve-mounting the blocking rod 46, and the inner wall of the second through hole is fixedly sleeved with second sealing rings 47 arranged at intervals to seal between the blocking rod 46 and the top of the oil storage tank 41.

[0104] The lubrication mechanism 4 also includes:

[0105] The hinge rod 494 is hinged to the side of the transmission plate 42 away from the pressure rod 43. The side wall of the end of the blocking rod 46 located at the top of the oil storage tank 41 is provided with a moving groove 495 for sleeve the hinge rod 494, so that the hinge rod 494 can move vertically along the moving groove 495, and the inner wall diameter of the moving groove 495 is larger than the middle end diameter of the side wall of the hinge rod 494.

[0106] The threaded tube 45 is threadedly connected to the side wall of the blocking rod 46 and is located at the top of the movable through groove 495. A pressing tube 496 is fixedly provided at the bottom of the threaded tube 45, and the inner wall of the pressing tube 496 is sleeved on the side wall of the blocking rod 46 to limit the height of the transmission plate 42. The top of the blocking rod 46 is designed to protrude outward to prevent the threaded tube 45 from being separated from the blocking rod 46.

[0107] The hinge hole 44 is opened at the top of one side of the transmission plate 42 close to the pressure rod 43, and the inner wall diameter of the hinge hole 44 is larger than the side wall diameter of the pressure rod 43, so that the pressure rod 43 has space to rotate in the hinge hole 44, and a cavity is opened inside the upper mold body 1 for the transmission plate 42 and the blocking rod 46 to move.

[0108] In specific implementation, when the fourth connecting plate 636 is squeezed downward, the transmission rod is driven to move downward, thereby driving the side of the transmission plate 42 close to the hinge hole 44 to rotate downward, and at the same time, the side of the transmission plate 42 away from the hinge hole 44 is rotated upward, and the transmission plate 42 is hinged to the blocking rod 46, thereby driving the blocking rod 46 to move vertically along the second through hole, so that the lower end of the side wall of the blocking rod 46 is separated from the upper end of the inner wall of the oil guide groove 493, so that the lubricating oil in the oil storage tank 41 flows downward through the gap between the oil guide nozzle 492 and the plug 491, and moves downward along the lower end of the inner wall of the oil guide nozzle 492 and the side wall of the positioning rod 3, so that The lubricating oil flows between the positioning groove and the positioning rod 3 to lubricate the positioning rod 3 and the positioning groove, thereby facilitating the long-term molding use of the upper mold body 1 and the lower mold body 2. After the lubricating oil is filled, under the action of the third spring, the blocking rod 46 again blocks the upper end of the inner wall of the oil guide groove 493, thereby completing the filling of the lubricating oil, and the lubricating mechanism 4 is linked with the extrusion mechanism 6, so that the lubricating oil is added after the upper mold body 1 and the lower mold body 2 are engaged, so as to avoid the lubricating oil flowing to the injection molding machine, thereby avoiding affecting the actual injection molding use, and facilitating the lubricating oil to better contact with the positioning rod 3 and the positioning groove, thereby improving the lubrication effect;

[0109] By making the top of the positioning rod 3 in an arc shape, the lubricating oil can flow along the top of the positioning rod 3 to the side wall of the positioning rod 3, so that the lubricating oil can contact the side wall of the positioning rod 3, and by providing the fixing blocks 49 arranged in a circular array, the lubricating oil can flow downward and fix the positioning rod 3, and the top and bottom of the fixing blocks 49 are both in an arc shape, so that the lubricating oil can flow downward.

[0110] The pressure ring 497 is provided to facilitate the third spring to act on the blocking rod 46 and the plug 491, so that the blocking rod 46 and the plug 491 have a tendency to move downward, so that when the third connecting plate 635 rotates upward, the spring is reset, so that the lower end of the side wall of the blocking rod 46 and the plug 491 are inserted into the upper end of the inner wall of the oil guide groove 493, thereby blocking the lubricating oil, and the lubricating oil is facilitated to enter the oil guide groove 493 through the oil guide hole;

[0111] By making the plug 491 in an inverted truncated cone shape, when the blocking rod 46 and the plug 491 move upward, the lubricating oil can flow downward along the gap between the plug 491 and the oil guide groove 493, and the plug 491 is always located in the oil guide groove 493, thereby guiding the blocking rod 46 to enter the oil guide groove 493 next time, and improving the smoothness of the blocking rod 46 entering the oil guide groove 493;

[0112] The first sealing ring 48 and the second sealing ring 47 are provided to seal the vertical movement of the blocking rod 46 to avoid oil leakage;

[0113] By setting the moving slot 495, the hinge rod 494 has a certain moving space in the moving slot 495, and is threadedly connected to the upper end of the side wall of the blocking rod 46 through the threaded tube 45, so that when the threaded tube 45 moves along the side wall of the blocking rod 46, the sleeve is driven to move, so as to limit the moving space of the hinge rod 494 in the moving slot 495. When the transmission plate 42 drives the blocking rod 46 to move, the sleeve is pressed against the top of the hinge rod 494, thereby limiting the movement of the hinge rod 494 in the moving slot 495, so that the transmission plate 42 drives the blocking rod 46 to move. The movable plate 42 drives the blocking rod 46 to move vertically, and the hinged rod 494 is hinged to the transmission plate 42, so as not to affect the vertical movement of the blocking rod 46. When the transmission plate 42 does not drive the blocking rod 46 to move, the sleeve moves upward, so that when the transmission plate 42 drives the hinged rod 494 to move, the hinged rod 494 moves along the inner wall of the moving through groove 495, so as not to drive the blocking rod 46 to move, so that the blocking rod 46 always blocks the oil guide groove 493, avoiding excessive lubricating oil being added, and facilitating the adjustment of the amount of lubricating oil added according to actual conditions;

[0114] By making the inner wall diameter of the hinge hole 44 larger than the side wall diameter of the transmission rod and hingedly connecting the transmission rod to the transmission plate 42, the transmission rod has room to move in the hinge hole 44. By making the inner wall diameter of the movable groove 495 larger than the middle end diameter of the side wall of the hinged rod 494, the hinged rod 494 can move not only vertically but also laterally in the movable groove 495, so that the hinged rod 494 has room to move in the movable groove 495. When the transmission plate 42 performs lever movement, the blocking rod 46 and the transmission rod can both move vertically, and the vertical movement length can be adjusted according to the sealing height between the blocking rod 46 and the oil guide groove 493 to ensure the stability of the movement on both sides of the transmission plate 42 and avoid excessive looseness.

[0115] The electronic devices such as the first electromagnet 6372 and the pressure sensor 6373 in the present invention are connected to an external power supply and a controller through wires to facilitate actual control and use. This is the prior art and will not be elaborated here.

[0116] The embodiment of the present invention further provides a method for using a vehicle lamp shade injection mold with a rapid cooling function, using a vehicle lamp shade injection mold with a rapid cooling function, the method comprising the following steps:

[0117] S1: conveying the raw material of the injection-molded lampshade into the lower mold body 2, and then driving the upper mold body 1 to move downward and fit with the lower mold body 2, so as to perform injection molding on the lampshade;

[0118] S2: After injection molding, coolant is transported into the upper mold body 1 and the lower mold body 2 through the connecting pipe 5, so as to cool the molded lampshade to assist the injection molding of the lampshade;

[0119] See also Fig.15 and Fig.16 The mechanism for driving the upper mold body 1 to move includes a hydraulic cylinder 7, and the hydraulic cylinder 7 includes a cylinder body 71 and a piston rod 72. In a specific implementation, the lower end of the outer wall of the cylinder body 71 is fixed to the inner wall of the third ring body 61 by bolts, etc., and the top center of the upper mold body 1 and the inner side of the first ring body 64 are fixed to the bottom of the piston rod 72 by bolts, etc., so that the hydraulic cylinder 7 drives the upper mold body 1 to rise and fall, so that the upper mold body 1 and the lower mold body 2 are embedded, so as to perform injection molding on the lampshade;

[0120] When the hydraulic cylinder 7 drives the upper mold body 1 to move downward, the second ring body 65 is driven to move downward through the lifting assembly 62, so that the upper mold body 1 is pressed from the top edge of the upper mold body 1 through the pressure assembly 63, so that the entire upper mold body 1 can apply uniform force downward, so that when the upper mold body 1 squeezes the raw material in the lower mold body 2, the raw material is evenly pressed, and the uniformity of the raw material molding is improved, thereby ensuring the quality of the injection molding of the lampshade of the vehicle lamp;

[0121] When the pressure-applying assembly 63 squeezes the upper mold body 1 downward, the pressure rod 43 is driven to move downward, so that the lubricating oil flows to the side wall of the positioning rod 3 through the lubrication mechanism 4, so as to improve the smoothness of the engagement and separation of the positioning rod 3 and the positioning groove when the positioning rod 3 enters and exits the positioning groove multiple times, avoid the upper mold body 1 and the lower mold body 2 from being jerked when being separated or engaged, thereby avoiding wrinkles on the lampshade, etc., and improving the stability of the injection molding of the lampshade.

[0122] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0123] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0124] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold for a lampshade of a vehicle with a rapid cooling function, comprising a lower mold body and an upper mold body, wherein a positioning groove and a positioning rod are respectively provided on the side where the lower mold body and the upper mold body are close to each other, and characterized in that: It also includes connecting pipes arranged on the side walls of the lower mold body and the upper mold body for conveying cooling liquid, an extrusion mechanism arranged on the top of the upper mold body, and a lubrication mechanism arranged in the upper mold body and linked with the extrusion mechanism, the extrusion mechanism includes: The first ring body is fixed to the top of the upper mold body by bolts, the second ring body is lifted and lowered on the top of the first ring body, a lifting assembly for driving the second ring body to lift and lower is provided on the top of the first ring body, a pressure assembly arranged in a circular array and used to squeeze the edge of the upper mold body is provided on the outer wall of the second ring body, and a third ring body is provided on the top of the second ring body, and the pressure assembly includes: A first connecting plate is hinged to the outer wall of the second ring body, a fourth connecting plate is hinged to the top of the first ring body, and the first connecting plate and the fourth connecting plate are hinged so that when the second ring body descends, the fourth connecting plate is pressed down, thereby applying pressure to the edge of the upper mold body; The lubrication mechanism comprises: A pressure rod is sleeved in the transmission hole, a transmission plate symmetrically arranged at the center point of the upper mold body is hinged to the lower end of the side wall of the pressure rod, a blocking rod is hinged to the side of the transmission plate away from the pressure rod, and the top center of the transmission plate is hinged to the inside of the upper mold body so that the transmission plate can perform a lever movement; The oil storage tank is fixedly arranged inside the upper mold body, and an oil guide nozzle is fixedly arranged at the bottom oil discharge end of the oil storage tank, and an oil guide groove is opened at the bottom of the oil guide nozzle. The inner wall of the oil guide groove is fixedly provided with fixed blocks arranged in a circular array, and the inner side of the fixed block is fixedly connected to the upper end of the side wall of the positioning rod. The top, bottom of the fixed block and the top of the positioning rod are all arc-shaped. The diameter of the upper end of the inner wall of the oil guide groove is smaller than the diameter of the lower end of the inner wall of the oil guide groove, and the bottom of the blocking rod extends into the oil guide groove.

2. The vehicle lamp shade injection mold with rapid cooling function according to claim 1, characterized in that: The pressure applying component also includes: A second connecting plate is hinged to a side of the first connecting plate away from the second ring body, a third connecting plate is provided on the side of the second connecting plate away from the first connecting plate, a first adjusting component for adjusting the distance between the second connecting plate and the third connecting plate is provided on the top of the third connecting plate, and a second adjusting component is provided on a side of the third connecting plate and the fourth connecting plate close to each other; The support plate is fixed on the top of the upper mold body, and the top of the support plate is in contact with the bottom of the fourth connecting plate when the fourth connecting plate is in a horizontal position. The top of the support plate is provided with a transmission hole extending into the upper mold body.

3. The vehicle lamp shade injection mold with rapid cooling function according to claim 2, characterized in that: The first adjustment component comprises: The plug plate is fixedly arranged on a side of the second connecting plate close to the third connecting plate, and a slot for sleeve-mounting the plug plate is provided on a side of the third connecting plate close to the second connecting plate, and adjustment holes arranged at intervals and extending into the plug plate are provided on the top of the third connecting plate; A fixing frame is fixedly arranged on the top of the third connecting plate, and an adjusting rod extending into the slot is sleeved on the top of the fixing frame, and the adjusting rod is inserted into the adjusting holes at different positions to adjust the distance between the second connecting plate and the third connecting plate; An adjusting ring is fixedly sleeved on the side wall of one end of the adjusting rod located on the inner side of the fixing frame, and a first spring is sleeved on the side wall of one end of the adjusting rod located on the inner side of the fixing frame and located on the top of the adjusting ring, so that the adjusting rod has a tendency to move downward, and a pull handle is fixedly provided on one end of the adjusting rod located on the top of the fixing frame, and a first through hole extending into the slot and used for sleeved the adjusting rod is opened on the top of the fixing frame, and the side wall diameter of the pull handle is larger than the inner wall diameter of the first through hole.

4. The vehicle lamp shade injection mold with rapid cooling function according to claim 2, characterized in that: The second adjustment component comprises: A moving rod is fixedly arranged at the center of one side of the third connecting plate close to the fourth connecting plate, a moving groove is provided inside the fourth connecting plate, and the moving rod extends into the moving groove, a first electromagnet is fixedly sleeved on a side wall of one end of the moving rod located in the moving groove, a guide rod extending into the fourth connecting plate is fixedly arranged on one side of the third connecting plate close to the fourth connecting plate and on both sides of the moving rod, and a guide hole for sleeve-mounting the guide rod is provided on one side of the fourth connecting plate close to the third connecting plate, so as to limit the movement of the third connecting plate; The second electromagnet is fixedly sleeved on the inner wall of the movable groove, and the second electromagnet and the first electromagnet are both annularly designed, the inner wall of the second electromagnet is sleeved on the side wall of the movable rod, and the side where the second electromagnet and the first electromagnet are close to each other has the same magnetic pole.

5. The vehicle lamp shade injection mold with rapid cooling function according to claim 4, characterized in that: The second adjustment component also includes: A stop plate is slidably disposed on the inner wall of the moving groove so that the stop plate moves along the axial direction of the moving groove; The pressure sensor is movably arranged in the movable groove, the inner wall of the movable groove is fixedly provided with a second spring, and the second spring is fixedly connected to a side of the pressure sensor away from the abutment plate.

6. The vehicle lamp shade injection mold with rapid cooling function according to claim 1, characterized in that: The lifting assembly comprises: A first tooth plate, fixedly arranged on both sides of the top of the first ring body; The mounting frame is fixed on both sides of the bottom of the third ring body, and the first tooth plate is slidably connected to the side of the mounting frame away from the third ring body, and the second tooth plate is slidably provided on the side of the mounting frame close to the third ring body, and the bottom of the second tooth plate is fixedly connected to the inner wall of the second ring body, and a transmission mechanism connecting the first tooth plate and the second tooth plate is provided on the inner side of the mounting frame, so that when the first tooth plate moves downward, it drives the second tooth plate to move downward, and the moving distance of the second tooth plate is greater than the moving distance of the first tooth plate, thereby driving the second ring body to move downward, so as to apply pressure to the edge of the upper mold body through the pressure assembly.

7. The vehicle lamp shade injection mold with rapid cooling function according to claim 1, characterized in that: The lubrication mechanism also includes: The plug is fixedly arranged at the bottom of the plugging rod and is designed in an inverted truncated cone shape. The lower end of the side wall of the plugging rod is fixedly sleeved with a first sealing ring arranged at intervals to seal between the oil guide groove and the plugging rod; A pressure ring is fixed on the side wall of one end of the blocking rod located in the oil storage tank, and the side wall of the pressure ring is provided with oil guide holes arranged in a circular array. The side wall of the blocking rod is located in the oil storage tank and a third spring is sleeved on the top of the pressure ring so that the blocking rod and the plug have a tendency to move downward. A second through hole for sleeve-mounting the blocking rod is provided on the top of the oil storage tank, and the inner wall of the second through hole is fixedly sleeved with second sealing rings arranged at intervals to seal between the blocking rod and the top of the oil storage tank.

8. The vehicle lamp shade injection mold with rapid cooling function according to claim 7, characterized in that: The lubrication mechanism also includes: A hinged rod is hinged to a side of the transmission plate away from the pressure rod, and a side wall of one end of the blocking rod located at the top of the oil storage tank is provided with a moving groove for sleeve-mounting the hinged rod, so that the hinged rod can move vertically along the moving groove; The threaded tube is threadedly connected to the side wall of the blocking rod and is located at the top of the movable through groove. A pressing tube is fixedly arranged at the bottom of the threaded tube, and the inner wall of the pressing tube is sleeved on the side wall of the blocking rod to limit the height of the transmission plate. The top of the blocking rod is designed to protrude outward to limit the threaded tube from separating from the blocking rod. The hinge hole is opened at the top of one side of the transmission plate close to the pressure rod, and the inner wall diameter of the hinge hole is larger than the side wall diameter of the pressure rod, so that the pressure rod has space to rotate in the hinge hole, and a cavity is opened inside the upper mold body for the transmission plate and the blocking rod to move.

9. A method for using a lampshade injection mold with a rapid cooling function, characterized in that: Using the vehicle lamp shade injection mold with rapid cooling function as described in any one of claims 1 to 8, the method comprises the following steps: S1: conveying the raw material of the injection-molded headlight cover into the lower mold body, and then driving the upper mold body to move downward and fit with the lower mold body, so as to perform injection molding on the headlight cover; S2: After injection molding, coolant is transported into the upper mold body and the lower mold body through the connecting pipe, so as to cool the molded headlight cover to assist the injection molding of the headlight cover.

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