Automatic casting machine for brake disc

Abstract

The invention belongs to the technical field of brake disc casting, and discloses an automatic brake disc casting machine. According to the automatic casting machine for the brake disc, the linkage control bases are symmetrically arranged at the top of the small rail car, the linkage control bases extend outwards to be provided with the two supporting rods, the bearing casting ladle is rotationally arranged between the two supporting rods through the torsional spring, and the bearing casting ladle inclines outwards in the initial state. And the receiving funnel is also coaxially connected with the receiving casting ladle. In actual use, the receiving casting ladle can rotate downwards under the impact effect of molten iron, and synchronously drives the receiving funnel to rotate to the position under the receiving funnel. Therefore, by adopting the double-layer flow guide structure for receiving the casting ladle and the receiving funnel, the falling height of the traditional molten iron can be reduced in a sectional manner, so that the waste and splashing conditions of the molten iron in the casting process are effectively reduced. In addition, by controlling the flow fluctuation of the molten iron, the probability of defects such as sand washing and material shortage can be reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of brake disc casting, and particularly relates to an automatic brake disc casting machine. BACKGROUND

[0002] Brake disc casting is a blank manufacturing process for vehicle braking parts, and is mainly based on gray cast iron or ductile cast iron sand casting. The core is to realize the blank manufacturing of the brake disc through mold forming, high-temperature pouring and cooling and cleaning steps.

[0003] In the related art, brake disc casting is generally divided into sand casting, metal mold casting and lost foam casting. Among them, sand casting has become the absolute mainstream of brake disc production due to its low mold cost, high production efficiency and strong process adaptability. In today's explosive growth of production capacity, a considerable number of factories turn to automatic sand casting for brake disc casting. Automatic sand casting is realized through an automatic casting machine. The general process is as follows: a main ladle is carried by a track trolley, and is moved to each sand mold station along the ground track, so as to realize the flow line type molten iron pouring.

[0004] However, in the actual pouring process, since the height difference between the main ladle carried by part of the track trolley and the sand mold is large, if the molten iron is directly poured into the sand mold through the main ladle, the molten iron will fall with a large impact force, which will cause splashing. This not only causes waste of molten iron, but also easily burns the workers, thereby forming a major safety hazard. SUMMARY

[0005] Therefore, the application provides an automatic brake disc casting machine to solve the problem of molten iron splashing in the pouring process of the automatic pouring machine in the related art.

[0006] To solve the above technical problems, the application provides an automatic brake disc casting machine, which comprises: a track system, the track system comprises a ground track fixedly laid and a track trolley connected in cooperation through a wheel rail mode, a main ladle is installed on the top of the track trolley through a rotating mechanism, and the track trolley can move and be positioned along the ground track; a turnover control system, the turnover control system is arranged beside the track trolley, and is used for controlling the turnover angle of the main ladle; a pouring receiving system, the pouring receiving system comprises a linkage control seat, the linkage control seat is fixedly arranged on the top of the track trolley and located beside the main ladle, two supporting rods are symmetrically arranged outward horizontally, a receiving ladle is rotatably connected between the two supporting rods through a torsional spring, and the receiving ladle is inclined outward in the initial state; a receiving funnel, the receiving funnel is coaxially connected with the receiving ladle through a connecting rod; wherein, When the receiving ladle is impacted by molten iron, it overcomes the torsion spring force and rotates downwards, simultaneously driving the receiving funnel to rotate downwards, so that the molten iron is guided through the receiving ladle into the receiving funnel to complete the casting.

[0007] In some possible implementations, the track trolley includes a carrying station and an operating station, which are separated by a partition. The bearing station is rotatably connected to the main pouring ladle via a support frame and is linked to the tilting control system; The operating station includes a stepped platform and a non-slip pedal connected to it. An industrial guardrail is vertically installed on the pedal near the main pouring ladle.

[0008] In some possible implementations, axles are fixedly provided on both sides of the receiving ladle, and the axles are rotatably connected to a pre-drilled slot at the end of the support rod; the torsion spring is sleeved on the outside of the axle, and its two ends abut against the support rod and the receiving ladle respectively, and the initial state of the receiving ladle has an inclination angle of 15° to 20°.

[0009] In some possible implementations, the two connecting rods are symmetrically arranged on both sides of the receiving funnel, with their ends respectively fixedly connected to the receiving funnel and the wheel axle.

[0010] In some possible implementations, a casting funnel is detachably connected to the receiving funnel directly below it via a vertical rod, the casting funnel being coaxially opposite to the spout of the receiving funnel.

[0011] In some possible implementations, both the receiving funnel and the casting funnel are provided with square-structured support bases on their outer sides, and the two ends of the vertical rod are detachably connected to the support bases by threaded connections.

[0012] Among the possible implementation methods is an insulation cover; The heat insulation cover covers the opening end of the main pouring ladle. It consists of two layers of iron mesh and a slag-blocking cotton sandwiched in the middle. The outer diameter of the slag-blocking cotton is larger than the outer diameter of the edging strips of the iron mesh on both sides.

[0013] In some possible implementations, the main ladle has multiple angle irons equidistantly distributed around its sidewalls, and the wire mesh is fixedly connected to the angle irons by fastening bolts through its edge strips.

[0014] In some possible implementations, the edge banding strip and the slag-blocking cotton are provided with arc-shaped casting notches near the pouring ladle nozzle.

[0015] In some possible implementations, a molten iron filter screen is placed inside the receiving funnel or the casting funnel, and a through hole is opened in the middle of the molten iron filter screen, and a double-headed hook is detachably connected to the through hole.

[0016] The automatic brake disc casting machine provided in this application has at least the following beneficial effects: In the automatic brake disc casting machine provided in this application, a linkage control seat is symmetrically arranged on the top of the track trolley. Two support rods extend outward from the linkage control seat, and a receiving ladle is rotatably mounted between the two support rods via a torsion spring. The receiving ladle initially tilts outward. Furthermore, the receiving funnel is coaxially connected to the receiving ladle. In actual use, the receiving ladle can rotate downward under the impact of molten iron, simultaneously driving the receiving funnel to rotate to a position directly below it. This double-layer guiding structure of the receiving ladle and receiving funnel can reduce the traditional molten iron drop height in stages, effectively reducing waste and splashing during the casting process. Furthermore, by controlling the flow fluctuation of the molten iron, the probability of defects such as sand splattering and material shortage can be reduced. Attached Figure Description

[0017] 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 for further understanding of the embodiments of the present invention and constitute a part of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the automatic brake disc casting machine according to an embodiment of this application; Figure 2 for Figure 1 Structural diagram of the central track trolley, main pouring ladle, and linkage control seat; Figure 3 for Figure 2 Schematic diagram of the initial state of the intermediate receiving funnel and receiving ladle; Figure 4 for Figure 2 Schematic diagram of the working status of the intermediate receiving funnel and receiving ladle; Figure 5 This is a schematic diagram of the structure of the track trolley in another embodiment of this application; Figure 6 for Figure 1 and Figure 2 Assembly diagram of the central linkage control unit and its auxiliary structures; Figure 7 for Figure 6 Exploded view of the central linkage control unit and its auxiliary structures; Figure 8 This is a schematic diagram of the structure of the receiving funnel and the casting funnel in another embodiment of this application; Figure 9 This is a schematic diagram of the main pouring ladle and the insulation cover in another embodiment of this application; Figure 10 for Figure 9 Exploded view of the main pouring ladle and insulation cover; Figure 11 for Figure 10 A schematic diagram of the structure viewed from below; Figure 12 for Figure 10 Exploded view of the central insulation cover; Figure 13 This is a schematic diagram showing the distribution of casting notches in another embodiment of this application; Figure 14 This is a schematic diagram of the assembly of the casting funnel and the molten iron filter screen in another embodiment of this application; Figure 15 for Figure 14 Exploded view of the casting funnel and molten iron filter screen.

[0018] In the picture: 100. Ground track; 200. Track trolley; 210. Load-bearing station; 211. Support frame; 220. Operating station; 221. Step; 222. Stepped platform; 223. Industrial guardrail; 300. Main pouring ladle; 310. Pour spout; 320. Angle iron; 330. Fastening bolts; 400. Handwheel; 500. Linkage control base; 510. Support rod; 511. Groove; 520. Ladle receiving; 521. Axle; 530. Torsion spring; 540. Handwheel; 600. Receiving funnel; 610. Connecting rod; 700. Casting funnel; 710. Molten iron filter screen; 711. Through hole; 720. Double-headed hook; 800. Support base; 810. Vertical rod; 900. Insulation cover; 910. Iron mesh; 911. Edge banding strip; 920. Slag-blocking cotton; 930. Casting notch. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] like Figures 1-4 As shown in the embodiment of this application, the automatic brake disc casting machine includes a track system, a tilting control system, a casting receiving system, and a receiving funnel 600. The track system is the core structure of the automatic casting production line, consisting of a ground track 100 and a track trolley 200. The ground track 100 is fixedly installed on the factory floor and is typically constructed from I-beam or channel steel. The ground track 100 can be designed as a straight line or a complex circular mesh layout, depending on the factory layout. The track trolley 200 engages with the ground track 100 via its bottom wheels, and the two are connected by an anti-derailment safety connection structure. Furthermore, the track trolley 200 primarily achieves automatic positioning, speed control, and safety protection functions through the PLC and sensors integrated into the control system.

[0021] like Figure 5 As shown, the track trolley 200 includes a carrying station 210 and an operating station 220, which are separated by a partition. The carrying station 210 is rotatably connected to the main ladle 300 via a support frame 211 and is linked to a tilting control system. The operating station 220 includes a stepped platform 222 and a connected anti-slip footboard 221. An industrial guardrail 223 is vertically installed on the footboard 221 near the main ladle 300. By separating the carrying station 210 (containing the main ladle 300) from the operating station 220 using the partition, direct contact between the operator and the high-temperature main ladle 300 and splashing molten iron is avoided, effectively reducing the risk of burns.

[0022] The top of the track trolley 200 is rotatably connected to the main ladle 300. The main ladle 300 is rotatably connected to the track trolley 200 via a rotating shaft 410, one end of which is linked to the tilting control system. The tilting control system is located beside the track trolley 200 and can be used by the operator to control the tilting angle of the main ladle 300, thereby achieving the function of pouring molten iron and completing casting. Preferably, the tilting control system includes a handwheel 400, a rotating shaft, and bearings. The two ends of the rotating shaft are fixedly connected to the main ladle 300 and linked to the handwheel 400, respectively. Therefore, the operator can precisely tilt the main ladle 300 by rotating the handwheel 400.

[0023] Continue as Figure 3 andFigure 4 As shown, the casting receiving system is a structure used to receive and transfer molten iron at high altitudes. The casting receiving system consists of a linkage control base 500, support rods 510, and a receiving ladle 520. The linkage control base 500 is fixed to the top of the track trolley 200 by multiple fastening bolts 330 and is located beside the main ladle 300. Two support rods 510 are symmetrically arranged horizontally outward from the linkage control base 500, and the receiving ladle 520 is rotatably connected between the two support rods 510. Furthermore, a torsion spring 530 is installed between the receiving ladle 520 and the support rods 510. In the initial state, the receiving ladle 520 is tilted outward under the elastic force of the torsion spring 530, and the angle between the axis of the receiving ladle 520 and the vertical direction is between 15° and 20°.

[0024] Specifically, such as Figure 6 and Figure 7 As shown, axles 521 are fixedly installed on both sides of the receiving ladle 520, and the axles 521 are rotatably connected to the slots 511 pre-drilled at the ends of the support rods 510. Torsion springs 530 are sleeved on the outside of the axles 521 and located within the slots 511. The two ends of the torsion springs 530 abut against the support rods 510 and the receiving ladle 520 respectively, so that the tilt angle of the receiving ladle 520 in its initial state is maintained between 15° and 20°. Furthermore, two connecting rods 610 are symmetrically arranged on both sides of the receiving funnel 600, and their ends are fixedly connected to the receiving funnel 600 and the axles 521 respectively.

[0025] In this embodiment, the receiving funnel 600 is located beside the receiving ladle 520, and is coaxially connected to the receiving ladle 520 via a connecting rod 610. In actual use, when the main ladle 300 tilts and pours molten iron outwards, the molten iron impacts the receiving ladle 520 and enters its interior. As the amount of molten iron gradually increases, the receiving ladle 520 rotates downwards, simultaneously causing the receiving funnel 600 to rotate to its lower region to receive the molten iron. The receiving funnel 600 then pours the molten iron into the sand mold, thereby realizing the casting of the sand mold.

[0026] The following is combined with Figures 1-4 The working principle and working process of the automatic brake disc casting machine provided in the embodiments of this application are described.

[0027] Working principle: Through the multi-stage transfer of molten iron via the main ladle 300, the receiving ladle 520, and the receiving funnel 600, the falling height of the molten iron can be significantly reduced. The receiving ladle 520 is used to pre-buffer and disperse the impact force of the molten iron, and the inner wall of the funnel guides the molten iron to flow along a fixed path, thereby avoiding splashing problems caused by large height differences.

[0028] Work process: The main ladle 300 pours molten iron at 850℃-950℃, the track trolley 200 is in the initial feeding position, and the receiving ladle 520 is in an initial 18° tilted state. The PLC control system receives a signal, and the track trolley 200 automatically moves along the ground track 100 to the target sand mold position and immediately locks its wheels. The operator controls the main ladle 300 to tilt via the tilting control system, allowing the molten iron to flow into the receiving ladle 520. Under the impact pressure of the molten iron, the receiving ladle 520 rotates downwards, simultaneously driving the receiving funnel 600 to rotate to its direct position, thus achieving the next stage of flow guidance through the receiving funnel 600. The molten iron then flows through the receiving ladle and the receiving funnel into the sand mold.

[0029] After one of the sand molds is completed, the main ladle 300 is reversed and reset via the flipping control system. The receiving ladle 520 returns to its initial state under the action of the torsion spring 530, and the carrying funnel then rotates to its side area. Meanwhile, the wheels at the bottom of the track trolley 200 are unlocked under PLC control, and it then moves to the next sand mold station to begin casting for the next sand mold.

[0030] In the automatic brake disc casting machine provided in this application embodiment, a linkage control seat 500 is symmetrically arranged on the top of the track trolley 200. Two support rods 510 extend outward from the linkage control seat 500, and a receiving ladle 520 is rotatably mounted between the two support rods 510 via a torsion spring 530. The receiving ladle 520 initially tilts outward. Furthermore, a receiving funnel 600 is coaxially connected to the receiving ladle 520. In actual use, the receiving ladle 520 can rotate downward under the impact of molten iron, simultaneously driving the receiving funnel 600 to rotate to a position directly below it. Thus, by employing a double-layer guiding structure of the receiving ladle 520 and the receiving funnel 600, the traditional molten iron drop height can be reduced in stages, effectively reducing waste and splashing of molten iron during the casting process. Furthermore, by controlling the fluctuation of the molten iron flow, the probability of defects such as sand splattering and material shortage can be reduced.

[0031] In some possible ways of implementation, such as Figure 8 As shown, a casting funnel 700 is detachably connected to the receiving funnel 600 directly below it via a vertical rod 810. The spouts of the casting funnel 700 and the receiving funnel 600 are coaxially aligned. Both the receiving funnel 600 and the casting funnel 700 are provided with square-structured support bases 800 on their outer sides. The two ends of the vertical rod 810 are detachably connected to the support bases 800 via threaded connections.

[0032] By adding a casting funnel 700 directly below the receiving funnel 600, the drop height of molten iron can be further reduced, completely eliminating splashing caused by high-speed molten iron falling and simultaneously improving the utilization rate of molten iron. Furthermore, the spout of the casting funnel 700 can be customized according to the gate size of the sand mold; the coaxial design ensures that the molten iron is injected vertically into the gate of the sand mold, thereby reducing sand-bursting defects.

[0033] In some embodiments, such as Figures 9-13 As shown, it also includes a heat insulation cover 900. The heat insulation cover 900 covers the open end of the main ladle 300 and consists of two layers of iron mesh 910 and a slag-blocking cotton 920 sandwiched in between, with the outer diameter of the slag-blocking cotton 920 being larger than the outer diameter of the edging strips 911 of the iron mesh 910 on both sides. Preferably, multiple angle irons 320 are evenly distributed around the side wall of the main ladle 300, and the iron mesh 910 is fixedly connected to the angle irons 320 by fastening bolts 330 passing through its edging strips 911.

[0034] The design employing a double-layered iron mesh 910 sandwiched with slag-blocking cotton 920 reduces temperature loss during the transfer of molten iron within the main ladle 300, preventing reduced fluidity due to excessively low iron temperature and ensuring smooth casting. Furthermore, the outer diameter of the slag-blocking cotton 920 is larger than the edge strip 911 of the iron mesh 910, allowing it to completely cover the top opening of the main ladle 300, preventing heat loss through the gaps.

[0035] Based on the above embodiment, the edge strip 911 and the slag-blocking cotton 920 are provided with an arc-shaped casting notch 930 near the ladle spout 310. The arc-shaped casting notch 930 can precisely fit the spout 310 of the main ladle 300, ensuring an unobstructed flow path for molten iron and avoiding splashing or flow restriction caused by the insulation cover 900. At the same time, the slag-blocking cotton 920 can also filter the floating slag on the surface of the molten iron as it flows out of the spout 310, thereby reducing the slag inclusion defect rate of the brake disc after molding.

[0036] In some embodiments, such as Figure 14 and Figure 15 As shown, an iron filter screen 710 is placed inside the receiving funnel 600 or the casting funnel 700. The iron filter screen 710 has a through hole 711 in the middle, and a double-headed hook 720 is detachably connected to the through hole 711. The iron filter screen 710 can further filter out fine impurities in the molten iron, and together with the slag-blocking cotton 920, it achieves dual filtration functions of coarse and fine filtration. The detachable connection between the double-headed hook 720 and the through hole 711 in the middle of the iron filter screen 710 allows for convenient and timely replacement of the iron filter screen 710 by the operator.

[0037] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0038] It should be noted that, unless otherwise expressly specified and limited, the term "connection" or its synonyms should be interpreted broadly in this document. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Furthermore, expressions such as "first" and "second" are merely 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. Meanwhile, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In addition, the terms "front," "rear," "left," "right," "upper," and "lower" in this document refer to the placement states shown in the accompanying drawings.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic brake disc casting machine, characterized in that, include: The track system includes a fixedly laid ground track and a track trolley connected by a wheel-rail mechanism. The main pouring ladle is mounted on the top of the track trolley via a rotating mechanism and can move and be positioned along the ground track. A tilting control system is located beside the track trolley and is used to control the tilting angle of the main pouring ladle. The casting receiving system includes a linkage control seat, which is fixedly installed on the top of the track trolley and located next to the main ladle. Two support rods are symmetrically arranged horizontally outward on the control seat. The two support rods are rotatably connected to the receiving ladle through a torsion spring, and the receiving ladle is tilted outward in the initial state. A receiving funnel is provided, which is coaxially connected to the receiving ladle via a connecting rod; wherein... When the receiving ladle is impacted by molten iron, it overcomes the torsion spring force and rotates downwards, simultaneously driving the receiving funnel to rotate downwards, so that the molten iron is guided through the receiving ladle into the receiving funnel to complete the casting.

2. The automatic brake disc casting machine according to claim 1, characterized in that: The track trolley includes a carrying station and an operating station, which are separated by a partition. The bearing station is rotatably connected to the main pouring ladle via a support frame and is linked to the tilting control system; The operating station includes a stepped platform and a non-slip pedal connected to it. An industrial guardrail is vertically installed on the pedal near the main pouring ladle.

3. The automatic brake disc casting machine according to claim 1, characterized in that: The receiving ladle is fixedly provided with axles on both sides, and the axles are rotatably connected to the slots pre-opened at the end of the support rod; the torsion spring is sleeved on the outside of the axle, and its two ends abut against the support rod and the receiving ladle respectively. In the initial state, the tilt angle of the receiving ladle is 15°~20°.

4. The automatic brake disc casting machine according to claim 3, characterized in that: The two connecting rods are symmetrically arranged on both sides of the receiving funnel, and their two ends are fixedly connected to the receiving funnel and the wheel axle, respectively.

5. The automatic brake disc casting machine according to claim 1, characterized in that: A casting funnel is detachably connected to the receiving funnel via a vertical rod directly below it, and the casting funnel is coaxial with the spout of the receiving funnel.

6. The automatic brake disc casting machine according to claim 5, characterized in that: Both the receiving funnel and the casting funnel are provided with square support bases on their outer sides, and the two ends of the vertical rod are detachably connected to the support bases by threaded connections.

7. The automatic brake disc casting machine according to claim 1, characterized in that: It also includes an insulation cover; The heat insulation cover covers the opening end of the main pouring ladle. It consists of two layers of iron mesh and a slag-blocking cotton sandwiched in the middle. The outer diameter of the slag-blocking cotton is larger than the outer diameter of the edging strips of the iron mesh on both sides.

8. The automatic brake disc casting machine according to claim 7, characterized in that: The main ladle has multiple angle irons evenly distributed around its sidewall, and the iron mesh is fixedly connected to the angle irons by fastening bolts through its edge strip.

9. The automatic brake disc casting machine according to claim 8, characterized in that: The edge banding strip and the slag-blocking cotton have arc-shaped casting notches near the pouring ladle and pouring nozzle.

10. The automatic brake disc casting machine according to claim 1, characterized in that: The receiving funnel or the casting funnel contains an iron filter screen, and the iron filter screen has a through hole in the middle, through which a double-headed hook can be detachably connected.

Images