Drilling equipment with dustproof function for mold machining

Abstract

The invention relates to the technical field of mold machining, in particular to mold machining drilling equipment with a dustproof function, which comprises a water storage tank, two supporting plates are symmetrically and fixedly connected to the top surface of the water storage tank, a rotating shaft is rotatably connected between the two supporting plates, and two driving rollers are coaxially and symmetrically and fixedly connected to the outer wall of the rotating shaft. An annular sliding groove and a spiral sliding groove are formed in the outer wall of the driving roller, the annular sliding groove communicates with the spiral sliding groove, a rotating plate is rotationally connected to an inlet of the spiral sliding groove, a torsional spring is installed at a rotating shaft of the rotating plate, a sliding column is slidably connected to the interior of the annular sliding groove, and an L-shaped plate is fixedly connected to the top face of the sliding column. And one side of the top of the L-shaped plate is fixedly connected with a sliding rod. According to the drilling equipment with the dustproof function for mold machining, water in the water conveying barrel can enter the water spraying pipe through the water outlet pipe and the hose and then is sprayed to the drilling position for dust falling, and meanwhile recycling of water for dust falling is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of mold processing, in particular to a drilling device for mold processing with a dustproof function. Background Art

[0002] Drilling is an essential process in mold manufacturing, used to create key structures such as ejector pin holes, cooling channels, and bolt holes. However, traditional drilling equipment easily generates large amounts of metal debris and dust during operation. These impurities not only pollute the working environment but can also enter the mold interior or the equipment's moving parts, resulting in reduced machining accuracy, increased tool wear, and even shortening the mold's service life.

[0003] Existing dust prevention measures mostly use external dust suction devices, protective covers and ordinary wet dust removal, but there are problems such as limited dust prevention effect, complex structure, and impact on operational convenience. It is easy to have problems such as incomplete dust collection and easy secondary diffusion. Ordinary wet dust removal faces the problems of water resource waste and waste liquid treatment.

[0004] In order to solve the above problems, we have made improvements and proposed a drilling equipment for mold processing with dust-proof function. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention provides a drilling device for mold processing with a dust-proof function, comprising a water storage tank, wherein the top surface of the water storage tank is symmetrically fixedly connected to two support plates, a rotating shaft is rotatably connected between the two support plates, two driving rollers are coaxially and symmetrically fixedly connected to the outer wall of the rotating shaft, an annular slide groove and a spiral slide groove are provided on the outer wall of the driving roller, and the annular slide groove is communicated with the spiral slide groove, a rotating plate is rotatably connected at the inlet of the spiral slide groove, a torsion spring is installed at the rotating shaft of the rotating plate, a sliding column is slidably connected inside the annular slide groove, an L-shaped plate is fixedly connected to the top surface of the sliding column, a sliding rod is fixedly connected to one side of the top of the L-shaped plate, and the other end of the sliding rod is fixedly connected to a splint;

[0007] A water delivery cylinder is fixedly connected to the inner middle part of the water storage tank, and the bottom of the water delivery cylinder is connected to a water inlet pipe and a water outlet pipe. A piston plate is sealingly and slidably connected to the inner part of the water delivery cylinder, a counterweight block is fixedly connected to the middle part of the top surface of the piston plate, and a pull rope is fixedly connected to the top surface of the counterweight block. A rope reel is coaxially connected to the middle part of the outer wall of the rotating shaft, and the pull rope extends through and extends to the outside of the water delivery cylinder. One end is wound around the rope reel, and a transmission assembly is installed in the middle part of the outer wall of the rotating shaft;

[0008] The top surfaces of the two support plates are fixedly connected to a door-type support plate that is slidably connected to the sliding rod. A mechanical arm is installed on the inner top surface of the door-type support plate. A drilling machine is installed on the movable end of the mechanical arm. A sprinkler pipe connected to the water outlet pipe through a hose is installed on the drilling machine.

[0009] As a preferred technical solution of the present invention, two transmission shafts are symmetrically connected to each other between the two support plates, and two belt rollers are coaxially symmetrically connected to the outer wall of each transmission shaft, and a transmission belt is installed between the corresponding two belt rollers.

[0010] As a preferred technical solution of the present invention, a plurality of support rollers are rotatably connected between the two support plates, the plurality of support rollers are horizontally arranged in a linear array, and the tops of the support rollers are in contact with the inner top surface of the transmission belt.

[0011] As a preferred technical solution of the present invention, a reduction motor is installed on the side of one of the support plates, and the output shaft of the reduction motor is coaxially fixedly connected to the rotating shaft.

[0012] As a preferred technical solution of the present invention, one end of the rotating shaft extending to the outside of the support plate is coaxially connected to a driving belt pulley, and one end of one of the transmission shafts extending to the outside of the support plate is coaxially fixedly connected to a driven belt pulley, and the driving belt pulley and the driven belt pulley are driven by a transmission belt;

[0013] The end of the rotating shaft is fixedly connected with a spring telescopic rod, the movable end of the spring telescopic rod is provided with an inclined chamfer, the side of the active belt pulley is provided with a circular groove, and the inner wall of the circular groove of the active belt pulley is evenly fixedly connected with a right-angled triangle block.

[0014] As a preferred technical solution of the present invention, the transmission assembly includes two driven friction discs and two active friction discs, the side surfaces of the driven friction discs and the active friction discs are fixedly connected to a plurality of limit bars in a circumferential array, both sides of the rope winding disc are coaxially fixedly connected to the driven friction disc, and the two active friction discs are slidably connected to the outer wall of the rotating shaft and are symmetrical with each other about the rope winding disc;

[0015] A transmission key bar is fixedly connected to the rotating shaft, and the active friction disc is slidably connected to the transmission key bar. A return spring is sleeved on the rotating shaft located between the driving roller and the active friction disc.

[0016] As a preferred technical solution of the present invention, a vertical plate is rotatably connected to the active friction disc, a connecting rod is hinged on the top of the vertical plate, the other ends of the two connecting rods are hinged to the same connecting plate, the top surface of the connecting plate is fixedly connected to a feedback plate, and the top surface of the feedback plate is provided with an inclined chamfer;

[0017] A horizontal plate is fixedly connected between the two support plates, and the horizontal plate is slidably connected to the feedback plate.

[0018] As a preferred technical solution of the present invention, both the water inlet pipe and the water outlet pipe are installed with a one-way valve, and the water outlet pipe is also installed with a solenoid valve.

[0019] As a preferred technical solution of the present invention, a plurality of filter holes are evenly opened on the top surface of the water tank, and the left and right sides of the top surface of the water tank are fixedly connected with a surrounding plate, and the surrounding plate is also fixedly connected to two support plates.

[0020] As a preferred technical solution of the present invention, a material unloading platform is fixedly connected to the left side of the support plate. The material unloading platform consists of an inclined part and a horizontal part. The bottom surface of the horizontal part of the material unloading platform is fixedly connected to four supporting legs.

[0021] The beneficial effects of the present invention are:

[0022] 1. This kind of drilling equipment for mold processing with dust-proof function will also drive the rope reel to rotate through the rotating shaft, reel the rope to pull the counterweight and the piston plate to lift the water in the water tank through the water inlet pipe into the water supply cylinder. Then, when the mold hits the chamfer of the feedback plate and causes it to drop, the connecting plate moves down and pushes the active friction plate through the connecting rod to separate the active friction plate from the driven friction plate. At this time, the rope reel can rotate freely, but because the solenoid valve on the water outlet pipe is in the closed state, the piston plate will not move down. When drilling, the solenoid valve can be opened, and the piston plate will move down under the action of the counterweight, and the water in the water supply cylinder will enter the sprinkler pipe through the outlet pipe and hose, and then sprayed to the drill hole to reduce dust.

[0023] 2. This kind of drilling equipment for mold processing has dust-proof function. The dust-reducing water falls into the top surface of the water tank and enters the water tank again through the filter hole, thereby realizing the recycling of dust-reducing water. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a three-dimensional schematic diagram of a drilling device for mold processing with a dust-proof function according to the present invention;

[0026] Figure 2 It is a schematic top view of a drilling device for mold processing with a dustproof function according to the present invention;

[0027] Figure 3This is a schematic diagram of the left side of a material removal and unloading platform of a drilling device for mold processing with a dust-proof function according to the present invention;

[0028] Figure 4 The present invention is a kind of drilling equipment for mold processing with dustproof function Figure 2 sectional view at AA in FIG;

[0029] Figure 5 It is a rear view schematic diagram of a drilling device for mold processing with a dustproof function according to the present invention;

[0030] Figure 6 The present invention is a kind of drilling equipment for mold processing with dustproof function Figure 3 A is an enlarged schematic diagram;

[0031] Figure 7 The present invention is a kind of drilling equipment for mold processing with dustproof function Figure 3 An enlarged schematic diagram of point B in FIG.

[0032] Figure 8 This is a schematic diagram of an active belt pulley of a mold processing drilling device with a dustproof function according to the present invention;

[0033] Figure 9 The present invention is a kind of drilling equipment for mold processing with dustproof function Figure 4 The enlarged schematic diagram of point C in FIG.

[0034] In the figure: 1. Water tank; 2. Support plate; 3. Drive shaft; 4. Belt roller; 5. Support roller; 6. Rotating shaft; 7. Reducer motor; 8. Drive roller; 9. Rotating plate; 10. Sliding column; 11. L-shaped plate; 12. Sliding rod; 13. Clamp; 14. Water delivery cylinder; 141. Water inlet pipe; 142. Water outlet pipe; 15. Piston plate; 16. Counterweight; 17. Pull rope; 18. Rope drum; 19. Door support plate; 20. Robotic arm; 21. Drilling machine; 22. Sprinkler pipe; 23. Active belt pulley; 24. Driven belt pulley; 25. Driven friction disc; 26. Active friction disc; 27. Vertical plate; 28. Connecting rod; 29. ​​Connecting plate; 30. Feedback plate; 31. Horizontal plate; 32. Unloading platform; 33. Spring telescopic rod; 34. Right-angle triangle block. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] Example: Figures 1-9As shown, a drilling device for mold processing with a dust-proof function includes a water tank 1, two support plates 2 are symmetrically fixedly connected to the top surface of the water tank 1, a rotating shaft 6 is rotatably connected between the two support plates 2, and two driving rollers 8 are coaxially and symmetrically fixedly connected to the outer wall of the rotating shaft 6. An annular chute and a spiral chute are opened on the outer wall of the driving roller 8, and the annular chute is connected to the spiral chute. A rotating plate 9 is rotatably connected to the inlet of the spiral chute, a torsion spring is installed at the rotating axis of the rotating plate 9, a sliding column 10 is slidably connected inside the annular chute, an L-shaped plate 11 is fixedly connected to the top surface of the sliding column 10, a sliding rod 12 is fixedly connected to one side of the top of the L-shaped plate 11, and a clamping plate 13 is fixedly connected to the other end of the sliding rod 12;

[0037] A water delivery cylinder 14 is fixedly connected to the inner middle part of the water storage tank 1, and the bottom of the water delivery cylinder 14 is connected to a water inlet pipe 141 and a water outlet pipe 142. A piston plate 15 is sealingly and slidably connected to the inner part of the water delivery cylinder 14. A counterweight 16 is fixedly connected to the middle part of the top surface of the piston plate 15. A pull rope 17 is fixedly connected to the top surface of the counterweight 16. A rope reel 18 is coaxially connected to the middle part of the outer wall of the rotating shaft 6. The pull rope 17 extends through the water delivery cylinder 14 to the outside and one end is wound around the rope reel 18. A transmission assembly is installed in the middle part of the outer wall of the rotating shaft 6.

[0038] The top surfaces of the two support plates 2 are fixedly connected with a door-type support plate 19 which is slidably connected to the slide rod 12. A robotic arm 20 is installed on the inner top surface of the door-type support plate 19. A drilling machine 21 is installed on the movable end of the robotic arm 20. A sprinkler pipe 22 connected to the water outlet pipe 142 through a hose is installed on the drilling machine 21.

[0039] Two transmission shafts 3 are symmetrically connected to each other in rotation between the two support plates 2 . Two belt rollers 4 are coaxially symmetrically connected to the outer wall of each transmission shaft 3 . A transmission belt is installed between the two corresponding belt rollers 4 .

[0040] A plurality of support rollers 5 are rotatably connected between the two support plates 2 . The plurality of support rollers 5 are horizontally arranged in a linear array, and the tops of the support rollers 5 are in contact with the inner top surface of the transmission belt.

[0041] A reduction motor 7 is installed on the side of one of the support plates 2 , and the output shaft of the reduction motor 7 is coaxially fixedly connected to the rotating shaft 6 .

[0042] One end of the rotating shaft 6 extending to the outside of the support plate 2 is coaxially connected to a driving belt pulley 23, and one end of one transmission shaft 3 extending to the outside of the support plate 2 is coaxially fixedly connected to a driven belt pulley 24, and the driving belt pulley 23 and the driven belt pulley 24 are driven by a transmission belt;

[0043] The end of the rotating shaft 6 is fixedly connected with a spring telescopic rod 33, the movable end of the spring telescopic rod 33 is provided with an inclined chamfer, the side of the active belt pulley 23 is provided with a circular groove, and the inner wall of the circular groove of the active belt pulley 23 is evenly fixed with a right-angled triangle block 34. When the reduction motor 7 drives the rotating shaft 6 to rotate clockwise, Figure 8 For reference, at this time, the rotating shaft 6 rotates counterclockwise. Under the action of the right-angled triangle block 34, the spring telescopic rod 33 is compressed, that is, the rotating shaft 6 will not drive the active belt pulley 23 to rotate synchronously.

[0044] The transmission assembly includes two driven friction discs 25 and two active friction discs 26. The sides of the driven friction discs 25 and the active friction discs 26 are fixedly connected to a plurality of limit bars in a circumferential array. The driven friction discs 25 are coaxially fixedly connected to both sides of the rope reel 18. The two active friction discs 26 are slidably connected to the outer wall of the rotating shaft 6 and are symmetrical with each other about the rope reel 18. The limit bars of the driven friction discs 25 and the active friction discs 26 are mutually engaged, so that the rotating shaft 6 drives the rope reel 18 to rotate.

[0045] A transmission key bar is fixedly connected to the rotating shaft 6, and the active friction disc 26 is slidably connected to the transmission key bar. A return spring is sleeved on the rotating shaft 6 located between the driving roller 8 and the active friction disc 26. Through the transmission key bar, the rotating shaft 6 can drive the active friction disc 26 to rotate synchronously. The return spring can make the active friction disc 26 return to its original position after being free from external force.

[0046] like Figure 7 and Figure 9 As shown, a vertical plate 27 is rotatably connected to the active friction disc 26, a connecting rod 28 is hinged to the top of the vertical plate 27, and the other ends of the two connecting rods 28 are hinged to the same connecting plate 29, and a feedback plate 30 is fixedly connected to the top surface of the connecting plate 29, and the top surface of the feedback plate 30 is provided with an inclined chamfer;

[0047] A horizontal plate 31 is fixedly connected between the two support plates 2 , and the horizontal plate 31 is slidably connected to the feedback plate 30 .

[0048] Both the water inlet pipe 141 and the water outlet pipe 142 are installed with a one-way valve, and the water outlet pipe 142 is also installed with a solenoid valve. The one-way valve on the water inlet pipe 141 ensures that water can only enter the water delivery cylinder 14 from the water tank 1, and the one-way valve on the water outlet pipe 142 ensures that water can only enter the water delivery cylinder 14 into the sprinkler pipe 22.

[0049] There are several filter holes evenly arranged on the top surface of the water tank 1. The left and right sides of the top surface of the water tank 1 are fixedly connected with enclosures, and the enclosures are also fixedly connected to the two support plates 2. The dust reduction water falls into the top surface of the water tank 1 and enters the water tank 1 again through the filter holes. The enclosures and the support plates 2 form a storage space for temporarily storing wastewater.

[0050] A material unloading platform 32 is fixedly connected to the left side of the support plate 2. The material unloading platform 32 consists of an inclined portion and a horizontal portion. Four supporting legs are fixedly connected to the bottom surface of the horizontal portion of the material unloading platform 32.

[0051] Working principle: Place the mold with the drilled hole on the conveyor belt, then start the reduction motor 7 to drive the shaft 6 to rotate counterclockwise, the shaft 6 drives the transmission shaft 3 to rotate counterclockwise through the active belt pulley 23, the transmission belt and the driven belt pulley 24, and transports the mold to the bottom of the door support plate 19, the reduction motor 7 drives the shaft 6 to rotate clockwise, and the driving roller 8 rotates clockwise, as shown in the figure. Figure 6 As shown, the rotating plate 9 is in the initial state, in which the rotating plate 9 can only rotate counterclockwise. The sliding post 10 will enter the spiral chute under the resistance of the rotating plate 9, and then the two sliding posts 10 will approach each other, and the two L-shaped plates 11 will approach each other, driving the clamping plate 13 to clamp the mold;

[0052] Then the robotic arm 20 drives the drilling machine 21 to drill the mold. After the drilling is completed, the reduction motor 7 is restarted to rotate counterclockwise, and the slide column 10 enters the annular chute from the spiral chute. The clamping plate 13 releases the clamping of the mold. The slide column 10 will resist the turn plate 9 to make it rotate counterclockwise, blocking the entrance of the spiral chute. The slide column 10 will continue to slide in the annular chute, and the conveyor belt will also drive the mold into the unloading platform 32.

[0053] Secondly, the reduction motor 7 is started to drive the rotating shaft 6 to rotate counterclockwise, and the rotating shaft 6 will also drive the rope reel 18 to rotate, and the rope reel 18 will reel in the rope 17, lift the counterweight 16 and the piston plate 15, and draw the water in the water tank 1 into the water supply cylinder 14 through the water inlet pipe 141. Then, when the mold hits the chamfer of the feedback plate 30 and causes it to drop, the connecting plate 29 moves down and pushes the active friction disc 26 through the connecting rod 28, so that the active friction disc 26 is separated from the driven friction disc 25. At this time, the rope reel 18 can rotate freely, but because the solenoid valve on the water outlet pipe 142 is in the closed state, the piston plate 15 will not move down. When drilling, the solenoid valve can be opened, and the piston plate 15 can move down under the action of the counterweight 16, so that the water in the water supply cylinder 14 enters the sprinkler pipe 22 through the water outlet pipe 142 and the hose, and then sprayed to the drill hole to reduce dust.

[0054] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A drilling device for mold processing with dustproof function, comprising a water storage tank (1), characterized in that: The top surface of the water storage tank (1) is symmetrically and fixedly connected to two support plates (2), a rotating shaft (6) is rotatably connected between the two support plates (2), and two driving rollers (8) are coaxially and symmetrically fixedly connected to the outer wall of the rotating shaft (6), an annular chute and a spiral chute are provided on the outer wall of the driving roller (8), and the annular chute is connected to the spiral chute, and a rotating plate (9) is rotatably connected at the inlet of the spiral chute, a torsion spring is installed at the rotating shaft of the rotating plate (9), and a sliding column (10) is slidably connected inside the annular chute, and the top surface of the sliding column (10) is fixedly connected to an L-shaped plate (11), and a sliding rod (12) is fixedly connected to one side of the top of the L-shaped plate (11), and the other end of the sliding rod (12) is fixedly connected to a clamping plate (13); The water tank (1) is fixedly connected to a water delivery cylinder (14) in the middle of the inner part, the water delivery cylinder (14) is connected to a water inlet pipe (141) and a water outlet pipe (142) at the bottom, the water delivery cylinder (14) is sealed and slidably connected to a piston plate (15) in the inner part, the top surface of the piston plate (15) is fixedly connected to a counterweight (16), the top surface of the counterweight (16) is fixedly connected to a pull rope (17), the outer wall of the rotating shaft (6) is coaxially connected to a rope reel (18), the pull rope (17) extends through the water delivery cylinder (14) to one end outside and is wound around the rope reel (18), and a transmission assembly is installed in the middle of the outer wall of the rotating shaft (6); The top surfaces of the two support plates (2) are fixedly connected to a same door-type support plate (19) which is slidably connected to the slide rod (12); a mechanical arm (20) is installed on the inner top surface of the door-type support plate (19); a drilling machine (21) is installed on the movable end of the mechanical arm (20); and a watering pipe (22) which is connected to the water outlet pipe (142) through a hose is installed on the drilling machine (21).

2. The mold processing drilling equipment with dustproof function according to claim 1, characterized in that: Two transmission shafts (3) are symmetrically connected to each other in rotation between the two support plates (2); two belt rollers (4) are coaxially symmetrically connected to the outer wall of each transmission shaft (3); and a transmission belt is installed between the two corresponding belt rollers (4).

3. The mold processing drilling equipment with dustproof function according to claim 2, characterized in that: A plurality of supporting rollers (5) are rotatably connected between the two supporting plates (2), the plurality of supporting rollers (5) are horizontally arranged in a linear array, and the tops of the supporting rollers (5) are in contact with the inner top surface of the transmission belt.

4. The mold processing drilling equipment with dustproof function according to claim 1, characterized in that: A reduction motor (7) is installed on the side of one of the support plates (2), and the output shaft of the reduction motor (7) is coaxially fixedly connected to the rotating shaft (6).

5. The mold processing drilling equipment with dustproof function according to claim 2, characterized in that: One end of the rotating shaft (6) extending to the outside of the support plate (2) is coaxially connected to a driving belt pulley (23), and one end of one of the transmission shafts (3) extending to the outside of the support plate (2) is coaxially fixedly connected to a driven belt pulley (24), and the driving belt pulley (23) and the driven belt pulley (24) are driven by a transmission belt; The end of the rotating shaft (6) is fixedly connected to a spring telescopic rod (33), the movable end of the spring telescopic rod (33) is provided with an inclined chamfer, the side of the active belt pulley (23) is provided with a circular groove, and the inner wall of the circular groove of the active belt pulley (23) is evenly fixedly connected with a right-angled triangle block (34).

6. The mold processing drilling equipment with dustproof function according to claim 1, characterized in that: The transmission assembly comprises two driven friction discs (25) and two active friction discs (26), the side surfaces of the driven friction discs (25) and the active friction discs (26) are fixedly connected with a plurality of limit bars in a circumferential array, the two sides of the rope reel (18) are coaxially fixedly connected with the driven friction discs (25), and the two active friction discs (26) are slidably connected to the outer wall of the rotating shaft (6) and are symmetrical with each other about the rope reel (18); A transmission key bar is fixedly connected to the rotating shaft (6), and the active friction disc (26) is slidably connected to the transmission key bar. A return spring is sleeved on the rotating shaft (6) located between the driving roller (8) and the active friction disc (26).

7. The mold processing drilling equipment with dustproof function according to claim 6, characterized in that: The active friction disc (26) is rotatably connected to a vertical plate (27), the top of the vertical plate (27) is hinged to a connecting rod (28), the other ends of the two connecting rods (28) are hinged to the same connecting plate (29), the top surface of the connecting plate (29) is fixedly connected to a feedback plate (30), and the top surface of the feedback plate (30) is provided with an inclined chamfer; A horizontal plate (31) is fixedly connected between the two support plates (2), and the horizontal plate (31) is slidably connected to the feedback plate (30).

8. The mold processing drilling equipment with dustproof function according to claim 1, characterized in that: Both the water inlet pipe (141) and the water outlet pipe (142) are installed with a one-way valve, and the water outlet pipe (142) is also installed with a solenoid valve.

9. The mold processing drilling equipment with dustproof function according to claim 1, characterized in that: The top surface of the water storage tank (1) is evenly provided with a plurality of filter holes. The left and right sides of the top surface of the water storage tank (1) are fixedly connected with enclosures, and the enclosures are also fixedly connected to two support plates (2).

10. The mold processing drilling equipment with dustproof function according to claim 1, characterized in that The left side of the support plate (2) is fixedly connected to a material unloading platform (32), and the material unloading platform (32) consists of an inclined portion and a horizontal portion. The bottom surface of the horizontal portion of the material unloading platform (32) is fixedly connected to four supporting legs.

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