Vehicle hub dust cover, forming tool and method

Abstract

The invention relates to the technical field of forming equipment, in particular to a vehicle hub dust cover, a forming tool and a method.The vehicle hub dust cover comprises a machining table, a bottom die, a top die, a hydraulic mechanism, a demolding assembly and a cooling assembly, the demolding assembly comprises a top plate, a jacking frame and a buffer rod, the machining table provides supporting conditions for other mechanisms, and the hydraulic mechanism drives the top die to ascend and descend; the bottom mold is opened and closed to produce the vehicle hub dust cover in an injection molding mode, the cooling assembly is used for conducting water cooling and rapid cooling on molten plastic to form the vehicle hub dust cover, the demolding assembly is used for automatically ejecting out the formed vehicle hub dust cover, when the demolding assembly is used, the controller controls the jacking frame to act based on a preset program, and the jacking frame acts to drive the top plate to slide upwards in the bottom mold. After the automobile hub dust cover is demolded, the jacking frame moves reversely, the top plate slides downwards, the bottom mold is retracted and reset, and therefore next injection molding production is carried out.

Description

Technical Field

[0001] This invention relates to the field of molding equipment technology, and in particular to a dust cover for automotive wheel hubs, molding tooling, and method. Background Technology

[0002] During vehicle operation, wheel hubs come into contact with various complex environments, such as dust, mud, and rainwater. If these impurities enter the wheel hub, they will accelerate the wear of the wheel bearings, reduce their lifespan, and affect the vehicle's driving safety. They may also adversely affect the braking system, such as causing decreased braking performance and increased braking distance. Therefore, an effective protective device is needed to protect the internal components of the wheel hub, and automotive wheel hub dust covers have emerged to address this need.

[0003] To meet the demands of large-scale automobile production, the tooling for molding wheel dust covers needs to possess efficient and stable production capabilities. It must be able to produce a large number of high-quality dust covers in a short time, ensuring that each dust cover meets requirements for dimensional accuracy, shape consistency, and performance specifications. Traditional manual or simple tooling production methods require workers to use pry bars to pry out the molded wheel dust covers, which is inconvenient and inefficient, failing to meet the stringent requirements of modern automotive industry for production efficiency and product quality. Summary of the Invention

[0004] The purpose of this invention is to provide a vehicle wheel hub dust cover, molding tooling, and method, which aims to solve the problems of inconvenient demolding and low demolding efficiency of traditional vehicle wheel hub dust cover molding tooling.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a molding fixture for automotive wheel hub dust covers, comprising a processing table, a bottom mold, a top mold, a hydraulic mechanism, a demolding assembly, and a cooling assembly. The bottom mold is mounted on the top of the processing table. The hydraulic mechanism is fixedly connected to the processing table and located on one side of the processing table. The top mold is fixedly connected to the hydraulic mechanism and located on one side of the hydraulic mechanism. The cooling assembly is disposed on one side of the bottom mold. The demolding assembly includes a top plate, a lifting frame, and a buffer rod. The top plate is slidably connected to the bottom mold and located inside the bottom mold. The lifting frame is disposed between the top plate and the processing table. The buffer rod is fixedly connected to the top plate and fixedly connected to the processing table, and located between the processing table and the top plate.

[0006] The lifting frame includes a connecting plate, a rotating rod, a slider, and a telescopic cylinder. The connecting plate is fixedly connected to the top plate and located at the bottom of the top plate. The rotating rod is rotatably connected to the connecting plate and located on the side of the connecting plate away from the top plate. The slider is mounted on the side of the rotating rod away from the connecting plate. The telescopic cylinder is fixedly connected to the slider and located on one side of the slider.

[0007] The buffer rod includes a damping rod and a buffer spring. The damping rod is fixedly connected to the top plate and the processing table, and is located between the processing table and the top plate. The buffer spring is sleeved on the outside of the damping rod.

[0008] The cooling assembly includes a cooling tank, a storage tank, a water inlet pipe, and a circulation pipe. The cooling tank is fixedly connected to the processing table and located on one side of the processing table. The storage tank is fixedly connected to the processing table and located on one side of the processing table. The water inlet pipe is connected to the storage tank and to the bottom mold, and is located between the storage tank and the bottom mold. The circulation pipe is connected to the bottom mold, the cooling tank, and the storage tank.

[0009] The cooling box includes a box body, a cooling chip assembly, and a radiator. The box body is fixedly connected to the processing table and located on one side of the processing table. The cooling chip assembly is assembled on the box body, and the radiator is fixedly connected to the box body and located on the outside of the box body.

[0010] In a second aspect, the present invention also provides a method for forming a vehicle wheel hub dust cover, which is applied to the vehicle wheel hub dust cover forming tooling as described in the first aspect above, and includes the following steps;

[0011] The hydraulic mechanism drives the top mold to press down on the bottom mold, and the injection molding mechanism sprays molten plastic into the bottom mold;

[0012] The cooling system supplies coolant to the bottom mold, allowing the plastic to cool and solidify, forming a dust cover for automotive wheel hubs.

[0013] The hydraulic mechanism drives the top surface to rise away from the bottom mold, and the lifting frame operates to push the top plate out of the vehicle wheel hub dust cover.

[0014] Thirdly, the present invention also provides a vehicle wheel hub dust cover, which is prepared using the vehicle wheel hub dust cover molding tooling described in the first aspect above.

[0015] This invention discloses a molding fixture for automotive wheel hub dust covers. The processing table provides support for other mechanisms. A hydraulic mechanism drives the top mold to rise and fall, opening and closing the bottom mold for injection molding of automotive wheel hub dust covers. A cooling assembly rapidly cools the molten plastic with water to form the wheel hub dust cover. A demolding assembly automatically ejects the formed wheel hub dust cover. When in use, a controller, based on a preset program, controls the lifting frame to move. The lifting frame's movement drives the top plate to slide upwards within the bottom mold, ejecting the wheel hub dust cover from the bottom mold, thus achieving the demolding operation of the automotive wheel hub dust cover. After the wheel hub dust cover is demolded, the lifting frame reverses its movement, sliding the top plate down and retracting it into the bottom mold to reset it, thus enabling the next injection molding production of the automotive wheel hub dust cover. The buffer rod is designed to buffer the force of the top plate, preventing excessive force during demolding that could deform the automotive wheel hub dust cover and affect its quality. This tooling automatically demolds the molded automotive wheel hub dust cover using the demolding assembly, making demolding convenient and quick without the need for pry bars, resulting in better demolding efficiency. This solves the problems of inconvenient demolding and low demolding efficiency in traditional automotive wheel hub dust cover molding tooling. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a top view of a molding fixture for a vehicle wheel hub dust cover provided by the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of a molding tool for a vehicle wheel hub dust cover provided by the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of a molding fixture for a vehicle wheel hub dust cover provided by the present invention (dust netting is hidden).

[0020] Figure 4 This is a schematic diagram of another aspect of the molding tooling for automotive wheel hub dust covers provided by the present invention.

[0021] Figure 5 yes Figure 1 A cross-sectional view along plane AA.

[0022] Figure 6 This is a flowchart of a method for forming a dust cover for a vehicle wheel hub provided by the present invention.

[0023] In the diagram: 1-Processing table, 2-Bottom mold, 3-Top mold, 4-Cooling assembly, 5-Demolding assembly, 6-Hydraulic mechanism, 41-Cooling box, 42-Storage box, 43-Water inlet pipe, 44-Circulation pipe, 411-Box body, 412-Refrigeration chip assembly, 413-Radiator, 4311-Connecting frame, 4312-Cooling fan, 4313-Dustproof net, 51-Top plate, 52-Lifting frame, 53-Buffer rod, 521-Connecting plate, 522-Rotating rod, 523-Slider, 524-Telescopic cylinder, 531-Damping rod, 532-Buffer spring. Detailed Implementation

[0024] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0025] Please see Figures 1 to 5 This invention provides a molding fixture for automotive wheel hub dust covers, comprising a processing table 1, a bottom mold 2, a top mold 3, a hydraulic mechanism 6, a demolding assembly 5, and a cooling assembly 4. The bottom mold 2 is mounted on the top of the processing table 1. The hydraulic mechanism 6 is fixedly connected to the processing table 1 and located on one side of the processing table 1. The top mold 3 is fixedly connected to the hydraulic mechanism 6 and located on one side of the hydraulic mechanism 6. The cooling assembly 4 is disposed on one side of the bottom mold 2. The demolding assembly 5 includes a top plate 51, a lifting frame 52, and a buffer rod 53. The top plate 51 is slidably connected to the bottom mold 2 and located inside the bottom mold 2. The lifting frame 52 is disposed between the top plate 51 and the processing table 1. The buffer rod 53 is fixedly connected to the top plate 51 and fixedly connected to the processing table 1, and located between the processing table 1 and the top plate 51.

[0026] In this embodiment of the invention, the processing table 1 provides support for the other mechanisms, the hydraulic mechanism 6 drives the top mold 3 to rise and fall, and opens and closes the bottom mold 2 to injection mold automotive wheel dust covers, the cooling component 4 is used to rapidly cool the molten plastic with water to form the automotive wheel dust cover, and the demolding component 5 is used to automatically eject the formed automotive wheel dust cover. When the demolding component 5 is in use, the controller controls the lifting frame 52 to move based on a preset program. The movement of the lifting frame 52 drives the top plate 51 to slide upwards in the bottom mold 2, and ejects the automotive wheel dust cover from the bottom mold 2, realizing the demolding operation of the automotive wheel dust cover. After the dust cover is demolded, the lifting frame 52 reverses its movement, sliding the top plate 51 down and retracting it into the bottom mold 2 to reset it, thus enabling the next injection molding production of the automotive wheel hub dust cover. The buffer rod 53 is designed to buffer the force of the top plate 51, preventing excessive force from the top plate 51 during demolding, which could cause deformation of the automotive wheel hub dust cover and affect its quality. This tooling automatically demolds the molded automotive wheel hub dust cover through the demolding component 5, making demolding convenient and quick without the need for pry bars, resulting in better demolding efficiency. This solves the problems of inconvenient demolding and low demolding efficiency of traditional automotive wheel hub dust cover molding tooling.

[0027] Furthermore, the lifting frame 52 includes a connecting plate 521, a rotating rod 522, a slider 523, and a telescopic cylinder 524. The connecting plate 521 is fixedly connected to the top plate 51 and is located at the bottom of the top plate 51. The rotating rod 522 is rotatably connected to the connecting plate 521 and is located on the side of the connecting plate 521 away from the top plate 51. The slider 523 is mounted on the side of the rotating rod 522 away from the connecting plate 521. The telescopic cylinder 524 is fixedly connected to the slider 523 and is located on one side of the slider 523.

[0028] In this embodiment of the invention, there are two telescopic cylinders 524 and two sliders 523. The controller controls the telescopic cylinders 524 to move based on a preset program. The output ends of the two telescopic cylinders 524 extend, pushing the two sliders 523 to slide and move closer to each other, thereby pushing the rotating rod 522 to rotate and lift the connecting plate 521. The connecting plate 521 then pushes the top plate 51 to slide upward in the bottom mold 2 and eject the vehicle wheel hub dust cover. The output ends of the two telescopic cylinders 524 retract, pulling the two sliders 523 to slide in the opposite direction, causing the rotating rod 522 to rotate in the opposite direction and pull down the connecting plate 521. The connecting plate 521 then pulls the top plate 51 to retract and reset.

[0029] Furthermore, the buffer rod 53 includes a damping rod 531 and a buffer spring 532. The damping rod 531 is fixedly connected to the top plate 51 and to the processing table 1, and is located between the processing table 1 and the top plate 51. The buffer spring 532 is sleeved on the outside of the damping rod 531.

[0030] In this embodiment of the invention, the damping rod 531 is provided to buffer the force of the top plate 51, so as to avoid excessive force when the top plate 51 is demolded, which would cause deformation of the vehicle wheel hub dust cover and thus affect the quality of the vehicle wheel hub dust cover. The buffer spring 532 is provided to further enhance the buffering effect of the damping rod 531 on the top plate 51.

[0031] Furthermore, the cooling assembly 4 includes a cooling tank 41, a storage tank 42, a water inlet pipe 43, and a circulation pipe 44. The cooling tank 41 is fixedly connected to the processing table 1 and located on one side of the processing table 1. The storage tank 42 is fixedly connected to the processing table 1 and located on one side of the processing table 1. The water inlet pipe 43 is connected to the storage tank 42 and to the bottom mold 2, and is located between the storage tank 42 and the bottom mold 2. The circulation pipe 44 is connected to the bottom mold 2, the cooling tank 41, and the storage tank 42 respectively.

[0032] In this embodiment of the invention, the storage tank 42 is used to store coolant. The water inlet pipe 43 draws coolant from the storage tank 42 and introduces the coolant into the bottom mold 2, thereby water-cooling the molten plastic and allowing the plastic to cool and solidify rapidly. The coolant that has absorbed the plastic's temperature flows back to the cooling tank 41 through the circulation pipe 44 for further cooling, ensuring the cooling energy of the coolant. When the temperature of the coolant reaches a preset value as detected by the temperature sensor installed in the coolant, the circulation pipe 44 then introduces the coolant from the cooling tank 41 into the storage tank 42 for storage, to be used for the next cooling cycle.

[0033] Furthermore, the cooling box 41 includes a box body 411, a cooling chip assembly 412, and a radiator 413. The box body 411 is fixedly connected to the processing table 1 and is located on one side of the processing table 1. The cooling chip assembly 412 is assembled on the box body 411. The radiator 413 is fixedly connected to the box body 411 and is located on the outside of the box body 411.

[0034] In this embodiment of the invention, the housing 411 is used to store the high-temperature coolant flowing back from the circulation pipe 44, the cooling chip assembly 412 is used to cool the coolant in the housing 411, and the radiator 413 is used to dissipate heat and cool the heat-dissipating end of the cooling chip assembly 412.

[0035] Furthermore, the radiator 413 includes a connecting frame 4311, a cooling fan 4312, and a dust filter 4313. The connecting frame 4311 is fixedly connected to the housing 411 and is located on one side of the housing 411. The cooling fan 4312 is mounted on one side of the connecting frame 4311. The dust filter 4313 is detachably connected to the connecting frame 4311 and is located outside the cooling fan 4312.

[0036] In this embodiment of the invention, the connecting frame 4311 is fixed to the outside of the housing 411 by bolts, the cooling fan 4312 is used to blow air to the heat-dissipating end of the cooling chip assembly 412 to dissipate heat, and the dustproof net 4313 is provided to protect the cooling chip assembly 412 from dust, so as to prevent the cooling fan 4312 from blowing air to the heat-dissipating end of the cooling chip assembly 412 and sucking in dust, which would cause dust to accumulate at the heat-dissipating end and thus affect the heat dissipation effect of the heat-dissipating end of the cooling chip assembly 412.

[0037] Please see Figure 6 Secondly, the present invention also provides a method for forming a vehicle wheel hub dust cover, applied to the vehicle wheel hub dust cover forming tooling as described in the first aspect above, comprising the following steps;

[0038] S1 hydraulic mechanism 6 drives the top mold 3 to press down the bottom mold 2, and the injection molding mechanism sprays molten plastic into the bottom mold 2;

[0039] In this embodiment of the invention, the hydraulic mechanism drives the top mold 3 to rise and fall, and opens and closes the bottom mold 2 to inject and produce dust covers for automotive wheel hubs.

[0040] S2 cooling component 4 supplies coolant to bottom mold 2, causing plastic to cool and mold, forming a dust cover for automotive wheel hubs;

[0041] In this embodiment of the invention, the storage tank 42 is used to store coolant. The water inlet pipe 43 draws coolant from the storage tank 42 and introduces the coolant into the bottom mold 2, thereby water-cooling the molten plastic and allowing the plastic to cool and solidify rapidly to form a dust cover for the vehicle wheel hub. The coolant that absorbs the temperature of the plastic flows back to the cooling tank 41 through the circulation pipe 44 for further cooling, ensuring the cooling energy of the coolant. When the temperature of the coolant reaches a preset value as detected by the temperature sensor installed in the coolant, the circulation pipe 44 then directs the coolant to the cooling tank 41. The coolant in the housing 411 is transferred into the storage tank 42 for storage and future cooling use. The cooling fin assembly 412 is used to cool the coolant in the housing 411. The cooling fan 4312 is used to blow air onto the heat-dissipating end of the cooling fin assembly 412. The dustproof net 4313 is used to protect the cooling fin assembly 412 from dust, preventing dust from being sucked in when the cooling fan 4312 blows air onto the heat-dissipating end of the cooling fin assembly 412, thus avoiding dust accumulation at the heat-dissipating end and affecting the heat dissipation effect of the heat-dissipating end of the cooling fin assembly 412.

[0042] S3 hydraulic mechanism 6 drives the top surface to rise away from the bottom mold 2, and the lifting frame 52 operates to push the top plate 51 to eject the vehicle wheel hub dust cover.

[0043] In this embodiment of the invention, there are two telescopic cylinders 524 and two sliders 523. The controller controls the telescopic cylinders 524 to move based on a preset program. The output ends of the two telescopic cylinders 524 extend, pushing the two sliders 523 to slide and move closer to each other, thereby pushing the rotating rod 522 to rotate and lift the connecting plate 521. The connecting plate 521 then pushes the top plate 51 to slide upward in the bottom mold 2 and eject the vehicle wheel hub dust cover. The output ends of the two telescopic cylinders 524 retract, pulling the two sliders 523 to slide in the opposite direction, causing the rotating rod 522 to rotate in the opposite direction and pull down the connecting plate 521. The connecting plate 521 then pulls the top plate 51 to retract and reset.

[0044] Thirdly, the present invention also provides a vehicle wheel hub dust cover, which is prepared using the vehicle wheel hub dust cover molding tooling described in the first aspect above.

[0045] The above description is merely a preferred embodiment of the vehicle wheel hub dust cover, molding tooling, and method of the present invention. It should not be construed as limiting the scope of the present invention. Those skilled in the art can understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A molding tooling for automotive wheel hub dust covers, characterized in that... ； The device includes a processing table, a bottom mold, a top mold, a hydraulic mechanism, a demolding assembly, and a cooling assembly. The bottom mold is mounted on the top of the processing table. The hydraulic mechanism is fixedly connected to the processing table and located on one side of the processing table. The top mold is fixedly connected to the hydraulic mechanism and located on one side of the hydraulic mechanism. The cooling assembly is located on one side of the bottom mold. The demolding assembly includes a top plate, a lifting frame, and a buffer rod. The top plate is slidably connected to the bottom mold and is located inside the bottom mold. The lifting frame is disposed between the top plate and the processing table. The buffer rod is fixedly connected to the top plate and the processing table, and is located between the processing table and the top plate.

2. The molding fixture for automotive wheel hub dust covers as described in claim 1, characterized in that; The lifting frame includes a connecting plate, a rotating rod, a slider, and a telescopic cylinder. The connecting plate is fixedly connected to the top plate and located at the bottom of the top plate. The rotating rod is rotatably connected to the connecting plate and located on the side of the connecting plate away from the top plate. The slider is mounted on the side of the rotating rod away from the connecting plate. The telescopic cylinder is fixedly connected to the slider and located on one side of the slider.

3. The molding fixture for automotive wheel hub dust covers as described in claim 1, characterized in that... ； The buffer rod includes a damping rod and a buffer spring. The damping rod is fixedly connected to the top plate and the processing table, and is located between the processing table and the top plate. The buffer spring is sleeved on the outside of the damping rod.

4. The molding fixture for automotive wheel hub dust covers as described in claim 1, Its characteristics are: The cooling assembly includes a cooling tank, a storage tank, a water inlet pipe, and a circulation pipe. The cooling tank is fixedly connected to the processing table and located on one side of the processing table. The storage tank is fixedly connected to the processing table and located on one side of the processing table. The water inlet pipe is connected to the storage tank and to the bottom mold, and is located between the storage tank and the bottom mold. The circulation pipe is connected to the bottom mold, the cooling tank, and the storage tank respectively.

5. The molding fixture for automotive wheel hub dust covers as described in claim 1, Its characteristics are: The cooling box includes a box body, a cooling chip assembly, and a radiator. The box body is fixedly connected to the processing table and located on one side of the processing table. The cooling chip assembly is assembled on the box body, and the radiator is fixedly connected to the box body and located on the outside of the box body.

6. A method for forming a vehicle wheel hub dust cover, applied to the vehicle wheel hub dust cover forming fixture as described in any one of claims 1-5, characterized in that, Includes the following steps; The hydraulic mechanism drives the top mold to press down on the bottom mold, and the injection molding mechanism sprays molten plastic into the bottom mold; The cooling system supplies coolant to the bottom mold, allowing the plastic to cool and solidify, forming a dust cover for automotive wheel hubs. The hydraulic mechanism drives the top surface to rise away from the bottom mold, and the lifting frame operates to push the top plate out of the vehicle wheel hub dust cover.

7. A vehicle wheel hub dust cover, prepared using the vehicle wheel hub dust cover molding tooling as described in any one of claims 1-5.

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