Brake disc sand box conveying device

Abstract

The application relates to a brake disc sand box conveying device and relates to the field of brake disc production and manufacturing technical equipment, which comprises a rack, a track and a sand box. The track is arranged on the rack and comprises a conveying section and a turnover section. Conveying rollers are arranged on the conveying section. A sliding groove is arranged on the track. The two ends of a supporting rod are respectively embedded in the sliding grooves of adjacent tracks and the supporting rod is slidably connected to the track. The front and rear ends of the sand box conveying direction are both provided with clamping blocks. A turnover block is rotatably connected to the supporting rod. The turnover block is provided with a clamping groove. When the sand box is conveyed, the clamping blocks are embedded in adjacent clamping grooves. When the sand box enters the turnover section, the conveying path of the sand box is limited by the supporting rod. At this time, the sand box can be turned upside down and then enters the next conveying section and continues the next process. The sand box can be turned over during the conveying process, and the conveying line does not need to be stopped during the turning. The application has the effect of improving the conveying efficiency of the brake disc sand box.

Description

Technical Field

[0001] This application relates to the field of brake disc manufacturing technology and equipment, and in particular to a brake disc sand box conveying device. Background Technology

[0002] Brake discs are typically cast using sand casting. A metal mold and molding machine are used to create a sand mold with the outline of the brake disc in a hollow sand box. The sand mold consists of an upper and lower mold. A core is separately made using a core shooter to form a sand core with internal ventilation channels. The sand core is placed into the lower mold, and the upper and lower sand boxes are closed and locked together, forming a complete mold. Molten iron is then poured into the mold cavity. After it fills and cools and solidifies, the brake disc blank, with its risers and burrs, is removed. Finally, shot blasting and cutting are performed to obtain a casting ready for finishing.

[0003] The metal molds in the molding machine are set with their front faces upwards, so the sand molds produced are all set with their front faces downwards. In order to facilitate the placement of sand cores into the downward sand molds and to check whether the structure of the sand molds is complete, the finished sand boxes need to be flipped to the front-facing position. Then, the structure of the sand molds is checked for completeness, and sand cores and filter screens are placed into the downward sand molds. Next, the upper sand box is flipped again separately. Finally, the upper and lower sand boxes are combined, and the upper and lower sand molds form a complete casting mold. In order to improve production efficiency, a conveyor device is usually set between the molding machine and the casting area. All the above flipping processes are completed during the conveying process.

[0004] Related technology can be found in Chinese Patent No. CN221184681U, which discloses a brake disc sand box flipping device, relating to the field of brake disc casting. The device includes a frame, with a flipping component rotatably connected to the upper end of the frame. The flipping component's rotation axis is horizontally set, and a conveyor is installed inside the flipping component, transporting sand boxes along its own rotation axis. One end of the conveyor contacts a first conveyor for inputting sand boxes onto the conveyor, and the other end contacts a second conveyor for transporting sand boxes output from the conveyor. After the sand box is transported to the upper end of the conveyor by the first conveyor, the flipping component flips the sand box, allowing for inspection of the upper and lower end faces of the sand box. After the sand box is reset, it is transported by the conveyor to the second conveyor for output.

[0005] To address the aforementioned technologies, a separate tilting device is installed on the conveying path of the sand box to achieve the tilting of the sand box. However, during the tilting process, the conveying operation of the sand box in the entire conveying device must be stopped, which affects the conveying efficiency of the brake disc sand box. Summary of the Invention

[0006] In order to improve the conveying efficiency of the brake disc sand box, this application provides a brake disc sand box conveying device.

[0007] This application provides a brake disc sand box conveying device, which adopts the following technical solution:

[0008] A brake disc sand box conveying device includes a frame, a track, and a sand box. The track is mounted on the frame and has conveying rollers on it to confine the sand box to the conveying path of the track. Support rods are provided between adjacent sand boxes. The track includes a conveying section and a turning section. The conveying rollers are mounted on the conveying section. The track has grooves. The two ends of the support rods are embedded in the grooves and are slidably connected to the track. There are locking blocks at both ends of the sand box conveying direction. The locking blocks are located at the center of the end face of the sand box. A turning block is rotatably connected to the support rod. The rotation axis of the turning block is parallel to the conveying direction of the sand box. The turning block has a slot with a shape and size that matches the locking block. When conveying the sand box, the locking block is embedded in the adjacent slot.

[0009] By adopting the above technical solution, the sand mold produced by the molding machine is formed into a sand box. The sand box is placed face down and enters the conveying section of the track and is conveyed in the direction of the track. At this time, the conveying path and posture of the sand box are controlled by the conveying rollers. When the sand box enters the flipping section, the conveying path of the sand box is restricted by the support rod. At this time, the sand box can be flipped to face up and then enter the next conveying section to continue the next process. The flipping can be carried out directly during the conveying process of the sand box without stopping the conveyor line during the flipping, which helps to improve the conveying efficiency of the brake disc sand box.

[0010] Optionally, the flipping block includes an active block located in front of the adjacent sand box conveying direction and a driven block located behind the adjacent sand box conveying direction. The active block is coaxially fixedly connected to a driven bevel gear, and a transmission rod is rotatably connected to the support rod. The transmission rod is set perpendicular to the conveying direction of the sand box. One end of the transmission rod is coaxially fixedly connected to a driving bevel gear, and the driven bevel gear meshes with the driving bevel gear. The end of the transmission rod away from the driving bevel gear is coaxially fixedly connected to a driven gear. The flipping section is fixedly connected to a driving rack. As the driven gear moves with the support rod, it meshes with the driving rack and drives the corresponding sand box to rotate 180 degrees.

[0011] By adopting the above technical solution, the sand box can be automatically rotated through the linkage structure when it passes through the rotation section, eliminating the need for manual rotation or separate motor drive for rotation, which helps to save production costs.

[0012] Optionally, the track is provided with a guide groove for disengaging the support rod from the track. One end of the guide groove is connected to the lower surface of the track, and the other end is connected to the slide groove.

[0013] By adopting the above technical solution, when the sand box reaches the end of the track, the support rod needs to be removed and recycled for reuse. The guide groove is set on the track so that the support rod can be detached from the track before being transported to the end of the track. After the sand box reaches the end of the track, subsequent merging operations can be carried out directly without the need to separately retrieve the support rod at the end of the track, which helps to further improve the conveying efficiency of the brake disc sand box.

[0014] Optionally, a sensing rod is rotatably connected to the track. The rotation axis of the sensing rod is perpendicular to the conveying direction of the sand box. A sensing plate is fixedly connected to one end of the sensing rod. The sensing plate is arranged radially along the sensing rod, and the sensing rod is located in the chute. A sensing gear is coaxially fixedly connected to the other end of the sensing rod. A brake rod is rotatably connected to the track. A brake gear that meshes with the sensing gear is coaxially fixedly connected to one end of the brake rod. A brake plate is fixedly connected radially to the other end to prevent the sand box from continuing to move when the support rod slides into the discharge groove. When the support rod slides to the front of the discharge groove and contacts the sensing plate, driving the sensing plate to move, the brake plate rotates to the front of the sand box to prevent the sand box from moving. When the support rod disengages from the sensing plate, the brake plate loses support, and the sand box can continue to move.

[0015] By adopting the above technical solution, when the support rod contacts the induction plate and drives the induction plate to move, the brake plate rotates to the front of the sand box to prevent the sand box from moving. This helps the card block to disengage from the card slot under the action of inertia, thereby separating the support rod from the sand box, making it easier for the support rod to enter the guide slot and disengage from the guide rail.

[0016] Optionally, the track is provided with an inlet groove for the support rod to enter the slide groove. One end of the inlet groove is connected to the upper surface of the track, and the other end is connected to the slide groove.

[0017] By adopting the above technical solution, the support rod and sand box are distributed alternately on the track. If the support rod and sand box both enter the track through the starting point of the track, it will easily affect the conveying efficiency of the sand box. Setting an inlet groove and having the support rod enter the track from the inlet groove helps to save the time for the sand box to enter the track, thereby improving the conveying efficiency of the brake disc sand box.

[0018] Optionally, an inlet slide is fixedly connected to the track. One end of the inlet slide is fixedly connected to the track, and the other end extends away from the track. A preparatory groove is provided on the inlet slide along its length. One end of the preparatory groove is connected to the inlet groove, and the other end is connected to the end face of the inlet slide.

[0019] By adopting the above technical solution and setting up an inlet slide, multiple support rods can be stored at the same time and enter the track sequentially through the inlet groove as the conveying progresses, which helps to further improve the conveying efficiency.

[0020] Optionally, the track is equipped with an air gun for blowing off loose sand from the surface of the sand box and a valve for controlling the airflow of the air gun. The valve is equipped with a button for controlling the opening and closing of the valve. When the sand box passes the position of the air gun, the side wall of the sand box presses the button, the valve opens, and the air gun blows air. When the sand box leaves the position of the air gun, the side wall of the sand box disengages from the button, the button resets, the valve closes, and the air gun stops blowing air.

[0021] By adopting the above technical solution, the air gun automatically opens and closes as the sand box is conveyed, cleaning the floating sand on the surface of the sand mold inside the sand box, thus realizing automatic cleaning of floating sand and helping to reduce labor costs.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] The system is equipped with support rods and a tilting section. When the sand box enters the tilting section, it is freed from the restriction of the conveying rollers. Instead, the support rods restrict the conveying path of the sand box. During the conveying process, the sand box can be tilted to face up and then enter the next conveying section to continue the next process. There is no need to stop the conveying work when the sand box is tilted, which helps to improve the conveying efficiency of the brake disc sand box.

[0024] The tilting block is divided into an active block and a driven block. The active block is located in front of the adjacent sand box in the conveying direction, and the driven block is located behind the adjacent sand box in the conveying direction. The driven bevel gear is coaxially fixedly connected to the active block, and the transmission rod is rotatably connected to the support rod. The rotation process of the active block is linked to the conveying process of the support rod. When the sand box passes through the tilting section, the sand box can be automatically tilted without manual tilting or a separate motor-driven tilting, which helps to save production costs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0026] Figure 2 This is an exploded schematic diagram used to illustrate the flipped block in an embodiment of this application.

[0027] Figure 3 This is a schematic diagram illustrating the internal structure of the transmission rod in an embodiment of this application.

[0028] Figure 4 This is a schematic diagram illustrating the structure of the driving bevel gear in an embodiment of this application.

[0029] Figure 5 This is a schematic diagram illustrating the structure of the export slot in an embodiment of this application.

[0030] Figure 6 yes Figure 5 An enlarged schematic diagram of part A in the middle.

[0031] Figure 7 This is a schematic diagram illustrating the structure of the driven gear in the embodiments of this application.

[0032] Figure 8 yes Figure 7 Enlarged diagram of part B.

[0033] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Brake lever; 111. Brake gear; 112. Brake plate; 2. Track; 21. Conveying section; 22. Tilting section; 221. Conveying roller; 222. Drive rack; 23. Slide groove; 24. Outlet groove; 25. Sensing rod; 251. Sensing plate; 252. Sensing gear; 26. Inlet groove; 27. Inlet slide; 271. Preparatory groove; 28. Air gun; 29. ​​Valve; 291. Button; 3. Sand box; 31. Locking block; 4. Support rod; 41. Tilting block; 411. Locking groove; 412. Driving block; 4121. Driven bevel gear; 413. Driven block; 42. Transmission rod; 421. Driven bevel gear; 422. Driven gear. Detailed Implementation

[0034] The present application will be further described in detail below with reference to all the accompanying drawings.

[0035] This application discloses a brake disc sand box conveying device.

[0036] Reference Figure 1 A brake disc sand box conveying device is disclosed, used to convey sand molds formed in a sand box 3 during the production of brake discs to the casting area. The device includes a frame 1, a track 2, and a sand box 3. The frame 1 is made of metal and provides support for the track 2 and longitudinal space for the flipping of the sand box 3. The track 2 is mounted on the frame 1 and includes two conveying sections 21 and a flipping section 22. The flipping section 22 is located between the two conveying sections 21. The track 2 consists of two parallel steel bars. Within the conveying section 21, each steel bar has two rows of parallel conveying rollers 221 arranged on its inner side. During conveying, the two rows of conveying rollers 221 contact the upper and lower ends of the sand box 3, respectively, confining the sand box 3 to the conveying path of the track 2. Support rods 4 are provided between adjacent sand boxes 3 on the track 2 to provide support for the sand box 3 when it passes through the flipping section 22. The sand box 3 is positioned face down and enters the first conveying section 21 of the track 2. At this time, the conveying roller 221 supports and controls the conveying path of the sand box 3 and restricts the posture of the sand box 3. When the sand box 3 enters the flipping section 22, the support rod 4 restricts the conveying path of the sand box 3. At this time, the sand box 3 can be flipped to face up. Then, as the conveying progresses, it enters the second conveying section 21 and continues to the next process. In this embodiment, the sand box 3 can be flipped during the conveying process without stopping the conveying line during the flipping, which helps to improve the conveying efficiency of the brake disc sand box 3.

[0037] Reference Figure 1 and Figure 2 The track 2 has a groove 23, which is located inside the steel bar and runs through the conveying section 21 and the tilting section 22. The two ends of the support rod 4 are respectively embedded in the grooves 23 of the two steel bars, allowing the support rod 4 to slide and connect to the track 2, and to slide along with the sand box 3 during conveying. Both the front and rear end faces of the sand box 3 in the conveying direction are fixedly connected to a locking block 31, which is located at the center of its respective end face. A tilting block 41 is rotatably connected to the support rod 4, with its rotation axis parallel to the conveying direction of the sand box 3. The tilting block 41 has a slot 411, the shape and size of which matches the locking block 31. During the conveying of the sand box 3, adjacent sand boxes 3 and support rods 4 press against each other, causing the locking blocks 31 to embed in the adjacent slots 411. The tilting section 22 provides support and conveying for the sand box 3 by the support rod 4, and keeps the sand box 3 in a tiltable state during the conveying process.

[0038] Reference Figure 2 and Figure 3 The two tilting blocks 41 on the same support rod 4 are divided into a driving block 412 and a driven block 413. The driving block 412 and the driven block 413 are coaxially arranged in opposite directions. During the conveying process, the driven block 413 is located in front of the support rod 4 and behind the adjacent sand box 3, while the driving block 412 is located behind the support rod 4 and in front of the adjacent sand box 3. The driven bevel gear 4121 is coaxially and fixedly connected to the driving block 412.

[0039] Reference Figure 1 and Figure 4 A transmission rod 42 is rotatably connected to the support rod 4. The transmission rod 42 is set perpendicular to the rotation axis of the driving block 412 and perpendicular to the conveying direction of the sand box 3 during conveying. One end of the transmission rod 42 is coaxially fixedly connected to a driving bevel gear 421, and the driven bevel gear 4121 meshes with the driving bevel gear 421. The other end of the transmission rod 42 away from the driving bevel gear 421 is coaxially fixedly connected to a driven gear 422. A driving rack 222 is fixedly connected to the flipping section 22. The driving rack 222 is set parallel to the length direction of the track 2. The driving rack 222 is located on the moving path of the driven gear 422, and when the driven gear 422 moves to the position of the driving rack 222, the two mesh with each other.

[0040] Reference Figure 2 and Figure 4 After passing through the flipping section 22 in sand box 3 (refer to...) Figure 1When the sand box 3 is engaged, the driven gear 422 moves with the support rod 4 at the front to the position where it meshes with the drive rack 222 and continues to move. The drive rack 222 drives the driven gear 422 to rotate, which in turn drives the transmission rod 42 to rotate coaxially. The transmission rod 42 drives the drive bevel gear 421 to rotate, which in turn drives the driven bevel gear 4121 to rotate, thereby driving the driving block 412 to rotate. The locking block 31 of the sand box 3 is engaged in the locking groove 411 of the driving block 412, so the sand box 3 is driven accordingly. During the process of the driven gear 422 engaging and disengaging from the drive rack 222, the sand box 3 rotates a total of 180 degrees, changing from a face-down state to a face-up state. The automatic flipping of the sand box 3 is achieved through the linkage structure, eliminating the need for manual flipping or a separate motor-driven flipping, which helps to save production costs.

[0041] Reference Figure 1 and Figure 5 When the sand box 3 reaches the end of the track 2, the support rod 4 needs to be removed and recycled. If both the sand box 3 and the support rod 4 are removed and separated at the end of the track 2, their removal operations will intersect, interfering with the transfer and merging of the sand box 3 and thus affecting work efficiency. In this embodiment, the track 2 is provided with an outlet groove 24, which is smoothly arranged with one end connected to the lower surface of the track 2 and the other end connected to the slide groove 23. This allows the support rod 4 to detach from the track 2 and be recycled after the sand box 3 has completed its reversal operation and before it has been transported to the end of the track 2. After the sand box 3 reaches the end of the track 2, it can be directly and independently carried out subsequent merging operations without having to manually retrieve the support rod 4 at the end of the track 2, which helps to further improve the conveying efficiency of the brake disc sand box 3.

[0042] Reference Figure 2 and Figure 6 When the support rod 4 slides to the position of the outlet groove 24, the locking block 31 of the sand box 3 is embedded in the locking groove 411 of the support rod 4. The support rod 4 needs to change its sliding direction to enter the outlet groove 24 from the slide groove 23. The support rod 4 is difficult to separate directly from the sand box 3 and requires manual assistance to complete the separation. In this embodiment, a sensing rod 25 is rotatably connected to the track 2. The rotation axis of the sensing rod 25 is set perpendicular to the conveying direction of the sand box 3. A sensing plate 251 is fixedly connected to one end of the sensing rod 25. The sensing plate 251 is arranged radially along the sensing rod 25 and the sensing rod 25 is located in the slide groove 23. A sensing gear 252 is coaxially fixedly connected to the other end of the sensing rod 25. A brake rod 11 is rotatably connected to the track 2. A brake gear 111 that meshes with the sensing gear 252 is coaxially fixedly connected to one end of the brake rod 11. A brake plate 112 is fixedly connected to the other end along its radial direction.

[0043] Reference Figure 2 and Figure 6Before the support rod 4 slides into the outlet groove 24, it contacts the sensing plate 251 and drives the sensing rod 25 to rotate. The sensing plate 251 drives the sensing rod 25 to rotate, which in turn drives the sensing gear 252 to rotate. The sensing gear 252 drives the brake gear 111 to rotate, which in turn drives the brake rod 11 to rotate. The brake rod 11 drives the brake plate 112 to rotate to the front of the sand box 3, preventing the sand box 3 from moving further. This helps the locking block 31 to automatically disengage from the locking groove 411 under inertia, thereby separating the support rod 4 from the sand box 3 and allowing it to enter the outlet groove 24. When the support rod 4 disengages from the sensing plate 251, the brake plate 112 loses its support, and the sand box 3 can continue to move. This facilitates the support rod 4's smoother entry into the outlet groove 24 and disengagement from the guide rail, helping to save labor costs.

[0044] Reference Figure 7 The support rod 4 and sand box 3 are alternately distributed on the track 2. If the support rod 4 and sand box 3 both enter the track 2 through the starting point of the track 2, it will easily affect the conveying efficiency of the sand box 3. In this embodiment, the track 2 is provided with an inlet groove 26. One end of the inlet groove 26 is connected to the upper surface of the track 2, and the other end is connected to the slide groove 23. Allowing the support rod 4 to enter the track 2 through the inlet groove 26 helps to save the time for the sand box 3 to enter the track 2, thereby improving the conveying efficiency of the brake disc sand box 3.

[0045] Reference Figure 5 and Figure 7 An inlet slide 27 is fixedly connected to the track 2. One end of the inlet slide 27 is smoothly and fixedly connected to the track 2, and the other end extends away from the track 2. A preparatory groove 271 is formed along the length of the inlet slide 27. One end of the preparatory groove 271 is connected to the inlet groove 26, and the other end is connected to the end face of the inlet slide 27. Multiple support rods 4 can be stored on the inlet slide 27 at the same time and enter the track 2 sequentially through the inlet groove 26 as the conveying progresses, which helps to further improve the conveying efficiency.

[0046] Reference Figure 7 and Figure 8During the transport of the sand box 3, an air gun 28 is needed to blow away the loose sand on the surface of the sand mold to improve the casting quality. This work is usually done manually. In this embodiment, the track 2 is equipped with an air gun 28 and a valve 29 for controlling the airflow of the air gun 28. The air gun 28 is positioned facing the upper surface of the sand box 3. The valve 29 is equipped with a button 291 for controlling its opening and closing. The button 291 extends through a hole in the track 2 to the inside of the track 2. When the sand box 3 passes the position of the air gun 28, the side wall of the sand box 3 presses against the button 291, the valve 29 opens, and the air gun 28 blows air. When the sand box 3 leaves the position of the air gun 28, the side wall of the sand box 3 disengages from the button 291, the button 291 resets, the valve 29 closes, and the air gun 28 stops blowing air. The air gun 28 automatically opens and closes as the sand box 3 is transported, realizing automatic cleaning of the loose sand on the surface of the sand mold and helping to reduce labor costs.

[0047] The implementation principle of the brake disc sand box conveying device in this application embodiment is as follows: A movable support rod 4 is provided between adjacent sand boxes 3, with both ends embedded in the sliding grooves 23 of the track 2 and capable of sliding. The flipping block 41 on the support rod 4 engages with the locking block 31 at the end of the sand box 3 through the locking groove 411. When conveyed to the flipping section 22, the driven gear 422 on the support rod 4 meshes with the drive rack 222, and the horizontal movement is converted into the rotational movement of the driving block 412 through the transmission rod 42, the drive bevel gear 421 and the driven bevel gear 4121, thereby driving the sand box 3 to rotate 180 degrees. The entire process does not require stopping the conveyor line, and the sand box 3 is automatically flipped during continuous conveying.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A brake disc sand box conveying device, comprising a frame (1), a track (2), and a sand box (3), wherein the track (2) is disposed on the frame (1), and the track (2) is provided with conveying rollers (221) for confining the sand box (3) on the conveying path of the track (2), characterized in that: A support rod (4) is provided between adjacent sand boxes (3). The track (2) includes a conveying section (21) and a turning section (22). The conveying roller (221) is set on the conveying section (21). A groove (23) is opened on the track (2). The two ends of the support rod (4) are embedded in the groove (23) and the support rod (4) is slidably connected to the track (2). Both ends of the sand box (3) in the conveying direction are provided with a locking block (31). The locking block (31) is set at the center of the end face of the sand box (3). A turning block (41) is rotatably connected to the support rod (4). The rotation axis of the turning block (41) is parallel to the conveying direction of the sand box (3). A slot (41) with a shape and size that matches the locking block (31) is provided on the turning block (41). 11) When conveying the sand box (3), the locking block (31) is embedded in the adjacent locking slot (411). The flipping block (41) includes an active block (412) located in front of the adjacent sand box (3) in the conveying direction and a driven block (413) located behind the adjacent sand box (3) in the conveying direction. The active block (412) is coaxially fixedly connected to the driven bevel gear (4121). A transmission rod (42) is rotatably connected to the support rod (4). The transmission rod (42) is set perpendicular to the conveying direction of the sand box (3). One end of the transmission rod (42) is coaxially fixedly connected to the driving bevel gear (421). The driven bevel gear (4121) meshes with the driving bevel gear (421). The end of the transmission rod (42) away from the driving bevel gear (421) is coaxially fixedly connected to the drive bevel gear (421). A driven gear (422) is fixedly connected to the rotating section (22), and a drive rack (222) is fixedly connected to the rotating section (22). The driven gear (422) will mesh with the drive rack (222) and drive the corresponding sand box (3) to rotate 180 degrees during the movement of the support rod (4). The track (2) is provided with an outlet groove (24) for disengaging the support rod (4) from the track (2). One end of the outlet groove (24) is connected to the lower surface of the track (2), and the other end is connected to the slide groove (23). A sensing rod (25) is rotatably connected to the track (2). The rotation axis of the sensing rod (25) is set perpendicular to the conveying direction of the sand box (3). A sensing plate (251) is fixedly connected to one end of the sensing rod (25). The sensing rod (25) is arranged radially along the sensing rod (25) and the sensing rod (25) is located in the slide groove (23). The other end of the sensing rod (25) is coaxially fixedly connected to the sensing gear (252). The track (2) is rotatably connected to the brake rod (11). One end of the brake rod (11) is coaxially fixedly connected to the brake gear (111) that meshes with the sensing gear (252). The other end is radially fixedly connected to the brake plate (112) for preventing the sand box (3) from continuing to move when the support rod (4) slides into the outlet groove (24). When the support rod (4) slides to the outlet groove (24) and contacts the sensing plate (251) and drives the sensing plate (251) to move, the brake plate (112) rotates to the front of the sand box (3) to prevent the sand box (3) from moving.When the support rod (4) disengages from the sensing plate (251), the brake plate (112) loses its support, and the sand box (3) can continue to move.

2. The brake disc sand box conveying device according to claim 1, characterized in that: The track (2) is provided with an inlet groove (26) for the support rod (4) to enter the slide groove (23). One end of the inlet groove (26) is connected to the upper surface of the track (2), and the other end is connected to the slide groove (23).

3. The brake disc sand box conveying device according to claim 2, characterized in that: An inlet slide (27) is fixedly connected to the track (2). One end of the inlet slide (27) is fixedly connected to the track (2), and the other end extends away from the track (2). A preparatory groove (271) is provided on the inlet slide (27) along its length. One end of the preparatory groove (271) is connected to the inlet groove (26), and the other end is connected to the end face of the inlet slide (27).

4. The brake disc sand box conveying device according to claim 1, characterized in that: The track (2) is equipped with an air gun (28) for blowing off the floating sand on the surface of the sand box (3) and a valve (29) for controlling the airflow of the air gun (28). The valve (29) is equipped with a button (291) for controlling the opening and closing of the valve (29). When the sand box (3) passes the position of the air gun (28), the side wall of the sand box (3) presses the button (291), the valve (29) opens, and the air gun (28) blows air. When the sand box (3) leaves the position of the air gun (28), the side wall of the sand box (3) disengages from the button (291), the button (291) resets, the valve (29) closes, and the air gun (28) stops blowing air.

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