Finished product polishing device for processing aluminum alloy pedal components

Abstract

The application belongs to the technical field of polishing, and particularly relates to a finished product polishing device for aluminum alloy pedal part machining, which comprises an outer box, an electric polishing rod and a control mechanism for controlling the position and direction of the electric polishing rod are arranged in the outer box, two chains are arranged in the outer box, a ring of connecting plates is uniformly and interval arranged between the two chains, and a pair of fixing cylinders are connected to the side of the connecting plates away from the chains. The connecting plates, the fixing cylinders, the lifting rods and the contact plates move with the intermittent rotating chains, the workpiece is sleeved on the fixing cylinders, the workpiece moves to the polishing area, the top of the connecting plate is in contact with the bottom of the limiting plate, the guide rod extrudes the contact plate, the lifting rod extrudes the clamping block, the rubber plate at the curved surface of the clamping block is in close contact with the inner wall of the circular groove of the workpiece, the position and direction of the electric polishing rod are controlled through the control mechanism, the electric polishing rod polishes the workpiece, the workpiece can be automatically clamped and polished, the feeding, polishing and unloading procedures are synchronously performed, the clamping stability, the procedure continuity and the working efficiency are high.

Description

Technical Field

[0001] This invention belongs to the field of polishing technology, and specifically relates to a finished product polishing device for processing aluminum alloy pedal parts. Background Technology

[0002] Bicycle pedals are mechanical devices that connect the cranks to the rider's feet. They rotate via bearings, providing a fulcrum for power transmission during riding. When machining aluminum alloy pedals, grinding equipment is required. Existing grinding equipment has the following drawbacks: (1) The aluminum alloy foot pedal has a circular groove and an irregular curved surface. Traditional clamps (such as three-jaw chucks or pneumatic clamps) are difficult to match the curved surface shape, which leads to the workpiece shifting or loosening during the clamping process. The clamping stability of such complex curved workpieces is insufficient. (2) Manual feeding is required. The feeding, clamping, grinding and unloading processes have low continuity, resulting in long production cycle and low process connection efficiency. Summary of the Invention

[0003] To address the problems mentioned in the background art, the present invention provides a finished product grinding device for processing aluminum alloy pedal parts.

[0004] Technical solution: A finished product grinding device for processing aluminum alloy foot pedal parts, including an outer box, an electric grinding rod and a control mechanism for controlling the position and direction of the electric grinding rod are provided inside the outer box, two chains are installed inside the outer box, and a ring of connecting plates is installed evenly spaced between the two chains. A pair of fixed cylinders are connected to the side of the connecting plates away from the chains, and a pair of sliding clamps are provided at the end of the fixed cylinders away from the connecting plates. The ends of each pair of clamps away from each other have curved surfaces that mate with the circular grooves of the workpiece.

[0005] Furthermore, it is particularly preferred that the control mechanism includes a guide rail one, which is installed on the top of the outer casing. The guide rail one is provided with a guide rail two that slides left and right. The guide rail two is provided with an electric push rod that slides back and forth. A movable plate is connected to the telescopic rod of the electric push rod. A rotating column is rotatably connected to the movable plate. An electric grinding rod is installed on the rotating column.

[0006] Furthermore, it is particularly preferred that the finishing grinding device for processing aluminum alloy foot pedal parts also includes an extrusion mechanism. The extrusion mechanism includes a lifting rod and a contact plate. An elastic element is connected between the clamping block and the fixed cylinder. Each pair of clamping blocks has an inclined surface on the side that is close to each other. A lifting rod is slidably connected inside each pair of fixed cylinders. The end of the lifting rod near the clamping block is an extrusion end with an inclined surface. The extrusion end is used to extrude the inclined surface. A contact plate is connected between the ends of each pair of lifting rods near the connecting plate.

[0007] Furthermore, it is particularly preferred that the extrusion mechanism also includes a guide rod and a limiting plate. The outer casing is provided with a guide rod in a fixed position and two limiting plates in a fixed position. Both ends of the guide rod have a second inclined surface. The guide rod moves upward by extruding the contact plate through the second inclined surface, and the limiting plate is used to limit the connection plate.

[0008] Furthermore, it is particularly preferred that the finishing grinding device for processing aluminum alloy foot pedal parts also includes a fixed column and an electric cutting wheel, with the fixed column connected to the outer casing and the electric cutting wheel installed at the lower end of the fixed column.

[0009] Furthermore, it is particularly preferred that the finishing grinding device for processing aluminum alloy foot pedal parts also includes a support rod and a sliding rod. The support rod is connected to the lower end of the fixed column, and a sliding rod is provided on the fixed column. An elastic element is connected between the sliding rod and the fixed column. The upper end of the sliding rod is a contact end and the lower end is a push-out end. The control mechanism pushes the sliding rod, and the push-out end pushes out the waste material on the support rod.

[0010] Furthermore, it is particularly preferred that the finishing grinding device for processing aluminum alloy pedal parts also includes a slant plate, with a slant plate connected to the right side of the outer box and located above the right end of the chain. The slant plate has a pair of elongated holes with the left end of the elongated holes open.

[0011] Furthermore, it is particularly preferred that the finishing grinding device for processing aluminum alloy foot pedal parts also includes a collection frame and a vibration motor. The collection frame located below the inclined plate is connected to the outer box, the collection frame is equipped with a screen, and the vibration motor is installed on the outside of the collection frame.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The connecting plate, fixed cylinder, lifting rod and contact plate move with the intermittently rotating chain, and the workpiece is placed on the fixed cylinder. The workpiece moves to the grinding area, the top of the connecting plate contacts the bottom of the limiting plate, the guide rod squeezes the contact plate, and the lifting rod squeezes the clamping block. The rubber plate at the curved surface of the clamping block is in close contact with the inner wall of the circular groove of the workpiece. The position and direction of the electric grinding rod are controlled by the control mechanism, and the electric grinding rod grinds the workpiece. It can automatically clamp and grind the workpiece. The feeding, grinding and unloading processes are carried out simultaneously, with high clamping stability, process continuity and work efficiency.

[0013] 2. Control the electric cutting wheel to cut the waste material connected between two workpieces. The waste material is hung on the support rod. The guide rail pushes the sliding rod to slide. The ejection end pushes the waste material hanging on the support rod down so as to collect the waste material. It integrates the functions of automatic cutting and waste ejection, further improving the continuity of the process and work efficiency.

[0014] 3. When the connecting plate, the fixed cylinder, and the polished workpiece move to the right end of the chain, the middle of the fixed cylinder enters the elongated hole, the workpiece is located above the inclined plate, the connecting plate and the fixed cylinder rotate downward with the chain, the fixed cylinder leaves the elongated hole, the workpiece is blocked by the inclined plate, causing the workpiece to detach from the fixed cylinder, and the unloading is automated.

[0015] 4. The workpiece detaches from the fixed cylinder and slides down the inclined plate into the collection frame. The vibration motor is controlled to make the collection frame and the workpiece vibrate, and the debris on the surface of the workpiece is shaken off. The screen automatically separates the workpiece and the debris. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the outer casing of the present invention, wherein the outer casing is cut open.

[0018] Figure 3 This is a front view of the invention, in which the outer casing is cut open.

[0019] Figure 4 This is a schematic diagram of the control mechanism and electric grinding rod of the present invention.

[0020] Figure 5 This is a schematic diagram of the chain, connecting plate, fixing cylinder, contact plate, guide rod and limiting plate of the present invention.

[0021] Figure 6 This is a schematic diagram of the structure of the connecting plate, fixing cylinder, lifting rod and contact plate of the present invention.

[0022] Figure 7 This is a schematic diagram of the structure of the connecting plate, fixing cylinder, clamping block, lifting rod, contact plate, guide rod and limiting plate of the present invention.

[0023] Figure 8 This is a partial cross-sectional view of the fixing cylinder, clamping block, and lifting rod of the present invention.

[0024] Figure 9 This is a schematic diagram of the clamping block of the present invention.

[0025] Figure 10 This is a schematic diagram of the structure of the fixed column, electric cutting wheel, support rod and sliding rod of the present invention.

[0026] Figure 11 This is a schematic diagram showing the cooperation relationship between the fixed column, electric cutting wheel, support rod, sliding rod and workpiece of the present invention.

[0027] Figure 12 This is a schematic diagram of the inclined plate of the present invention.

[0028] In the diagram: 1. Outer casing; 2. Control mechanism; 21. Guide rail one; 22. Guide rail two; 23. Electric push rod; 24. Moving plate; 25. Rotating column; 3. Electric grinding rod; 30. Workpiece; 301. Waste material; 302. Circular groove; 4. Chain; 5. Connecting plate; 6. Fixed cylinder; 7. Clamping block; 70. Inclined surface one; 701. Curved surface; 71. Lifting rod; 72. Extrusion end; 73. Contact plate; 74. Guide rod; 75. Inclined surface two; 76. Limiting plate; 81. Fixed column; 82. Electric cutting wheel; 91. Support rod; 92. Sliding rod; 921. Contact end; 922. Pushing end; 101. Inclined plate; 102. Long hole; 111. Collection frame; 112. Vibration motor. Detailed Implementation

[0029] Implementation Method 1: A finished product grinding device for processing aluminum alloy pedal parts, referenced. Figures 1-9 The device includes an outer casing 1, a control mechanism 2, an electric polishing rod 3, chains 4, connecting plates 5, a fixing cylinder 6, and clamping blocks 7. The outer casing 1 houses the electric polishing rod 3 and the control mechanism 2 for controlling its position and direction. The polishing area is located in the center of the outer casing 1. Two symmetrical chains 4 are installed on the lower side of the outer casing 1. The structure and principle for driving the chains 4 are existing technology. A connecting plate 5 is evenly spaced between the two chains 4. As the chains 4 rotate, the connecting plates 5 move away from the chains 4. A pair of fixed cylinders 6 are fixedly connected to one side of each workpiece 30. A pair of sliding and symmetrical clamping blocks 7 are provided at the end of each fixed cylinder 6 away from the connecting plate 5. Each pair of clamping blocks 7 has a curved surface 701 that mates with the circular groove 302 of the workpiece 30 at the end of the opposite side. A rubber plate for increasing friction is fixedly connected to the curved surface 701 of each clamping block 7. Each pair of clamping blocks 7 has states of being close to each other and being far away from each other. The workpiece 30 is sleeved on the fixed cylinder 6, and the pair of clamping blocks 7 that are far away from each other clamp the workpiece 30 through the rubber plate of the curved surface 701.

[0030] refer to Figures 1-4 The control mechanism 2 includes a guide rail 1 21, a guide rail 22, an electric push rod 23, a moving plate 24, and a rotating column 25. Two guide rails 1 21 are installed on the top of the outer casing 1. A guide rail 22 that slides left and right is provided between the two guide rails 1 21. An electric push rod 23 that slides back and forth is provided on the guide rail 22. Linear motors are installed on both the guide rail 1 21 and the guide rail 22. The linear motor on the guide rail 1 21 is used to drive the guide rail 22 to move left and right. The linear motor on the guide rail 22 is used to drive the electric push rod 23 to move back and forth. A moving plate 24 is connected to the telescopic rod of the electric push rod 23. A rotating column 25 is rotatably connected to the moving plate 24. A reduction motor for driving the rotating column 25 to rotate is installed on the moving plate 24. An electric grinding rod 3 is installed on the rotating column 25.

[0031] refer to Figures 1-9The finishing grinding device for aluminum alloy foot pedal parts also includes an extrusion mechanism. The extrusion mechanism includes a lifting rod 71 and a contact plate 73. An elastic element, which is a spring, is fixedly connected between the clamping block 7 and the fixed cylinder 6. Each pair of clamping blocks 7 has an inclined surface 70 on the side closest to each other. A lifting rod 71 is slidably connected inside each pair of fixed cylinders 6. The end of the lifting rod 71 near the clamping block 7 is an extrusion end 72 with an inclined surface. The extrusion end 72 is used to extrude the inclined surface 70 on the clamping block 7. The end of the lifting rod 71 near the connecting plate 5 extends out from the fixed cylinder 6. A contact plate 73 is fixedly connected between the ends of each pair of lifting rods 71 ​​near the connecting plate 5. 3; The extrusion mechanism also includes a guide rod 74 and a limiting plate 76. The outer box 1 is equipped with a guide rod 74 with a fixed position and two limiting plates 76 with fixed positions. The top of both ends of the guide rod 74 has a second inclined surface 75. When the connecting plate 5, the contact plate 73, the fixed cylinder 6 and the workpiece 30 rotate together with the chain 4, the guide rod 74 presses the contact plate 73 upward through the second inclined surface 75 at the left end, driving the lifting rod 71 to move upward to press the clamping block 7. As the chain 4 rotates, the connecting plate 5 will move to the bottom of the limiting plate 76, and the top of the connecting plate 5 will contact the top of the limiting plate 76. During the grinding process, the limiting plate 76 limits the connecting plate 5.

[0032] The process of the control mechanism 2 controlling the position and direction of the electric grinding rod 3 is as follows: the linear motor on the first guide rail 21 drives the second guide rail 22 to move in the left and right directions, which in turn moves the electric push rod 23, the moving plate 24, the rotating column 25 and the electric grinding rod 3 in the left and right directions. The linear motor on the second guide rail 22 drives the electric push rod 23 to move in the front and back directions, which in turn moves the moving plate 24, the rotating column 25 and the electric grinding rod 3 in the front and back directions. The extension or retraction of the extension rod of the electric push rod 23 is controlled to move the moving plate 24, the rotating column 25 and the electric grinding rod 3 in the up and down directions. In this way, the position of the electric grinding rod 3 can be adjusted in three dimensions. The direction of the electric grinding rod 3 can be adjusted by controlling the geared motor to drive the rotating column 25 to rotate, so that the electric grinding rod 3 is close to the surface of the workpiece 30 to grind the workpiece 30.

[0033] First, the chain 4 rotates clockwise intermittently, causing the connecting plate 5, fixed cylinder 6, lifting rod 71, and contact plate 73 to rotate clockwise around the chain 4. When the chain 4 stops rotating, the two workpieces 30 are placed on a pair of fixed cylinders 6 at the left end of the chain 4. The chain 4 rotates again, and the connecting plate 5, fixed cylinder 6, lifting rod 71, contact plate 73, and workpieces 30 at the left end of the chain 4 move to the right. The guide rod 74 presses the contact plate 73 upward through its left-end inclined surface 75. The bottom surface of the contact plate 73 contacts the top surface of the guide rod 74, causing the corresponding lifting rod 71 to slide upward. The lifting rod 71 presses the inclined surface 70 of the clamping block 7 through the pressing end 72, causing the pair of clamping blocks 7 to slide to the side away from each other. The elastic element is stretched, and the rubber plate at the curved surface 701 of the clamping block 7 is in close contact with the inner wall of the circular groove 302 of the workpiece 30, thereby restricting the position of the workpiece 30 on the fixed cylinder 6 through the clamping block 7.

[0034] When the connecting plate 5, the fixed cylinder 6, the lifting rod 71, the contact plate 73, and the workpiece 30 held by the clamping block 7 move to the right to the grinding area, the chain 4 stops rotating. At this time, the top of the connecting plate 5 contacts the bottom of the limiting plate 76, so that the connecting plate 5 at this point will not move upward. The next pair of workpieces 30 are then placed on the fixed cylinder 6 at the left end of the chain 4. At the same time, the position and direction of the electric grinding rod 3 are controlled by the control mechanism 2, so that the electric grinding rod 3 can be controlled to grind the workpiece 30 in the grinding area. Since the bottom surface of the contact plate 73 contacts the top surface of the guide rod 74, and the top of the connecting plate 5 contacts the bottom of the limiting plate 76, the contact plate 73 and the connecting plate 5 will not move away from each other in the vertical direction, keeping the pressing end 72 pressing the clamping block 7, thereby keeping the rubber plate at the curved surface 701 in close contact with the inner wall of the circular groove 302, preventing the rubber plate from loosening from the circular groove 302 due to grinding friction, and ensuring the effect of the clamping block 7 in holding the workpiece 30.

[0035] After the workpiece 30 is polished, the chain 4 rotates once more, and the right-moving contact plate 73 moves away from the guide rod 74 along the inclined surface 75 at the right end of the guide rod 74. The elastic element returns to its original state, and a pair of clamping blocks 7 move closer to each other. The rubber plate at the curved surface 701 of the clamping block 7 releases the inner wall of the circular groove 302 of the workpiece 30. The clamping block 7 presses the lifting rod 71 through the inclined surface 70, causing the lifting rod 71 and the contact plate 73 to descend and reset. The polished workpiece 30 can then be removed from the fixed cylinder 6. In this way, the workpiece 30 can be automatically clamped and polished. The clamping block 7 can match the curved surface shape of the workpiece 30 to prevent the workpiece 30 from shifting or loosening. The loading, polishing and unloading processes are carried out simultaneously, resulting in high clamping stability, process continuity and work efficiency.

[0036] Implementation Method 2: Based on Implementation Method 1, refer to... Figure 2 , Figure 3 , Figure 10 and Figure 11The finished product grinding device for processing aluminum alloy foot pedal parts also includes a fixed column 81 and an electric cutting wheel 82. The fixed column 81 is fixedly connected to the left side of the outer box 1. A pair of electric cutting wheels 82 are installed at the lower end of the fixed column 81. The driving method of the electric cutting wheel 82 is the prior art.

[0037] refer to Figure 2 , Figure 3 , Figure 10 and Figure 11 The finishing grinding device for processing aluminum alloy foot pedal parts also includes a support rod 91 and a sliding rod 92. A pair of spaced support rods 91 are fixedly connected to the lower left side of the fixed column 81. The fixed column 81 is provided with a sliding rod 92 that can slide left and right. An elastic element two, which is a spring, is fixedly connected between the sliding rod 92 and the fixed column 81. The upper end of the sliding rod 92 is the contact end 921 and the lower end is the push-out end 922. The waste material 301 cut by the electric cutting wheel 82 is hung on the pair of support rods 91. When the guide rail two 22 moves to the left along the guide rail one 21, the guide rail two 22 will push the sliding rod 92 to the left, and the push-out end 922 will push the waste material 301 on the support rod 91 out.

[0038] After the workpiece 30 is placed on the fixed cylinder 6, the connecting plate 5, the fixed cylinder 6, and the workpiece 30 are moved to the right by the chain 4. The electric cutting wheel 82 is controlled to cut the waste material 301 connected between the two workpieces 30, separating the waste material 301 from the workpiece 30. The waste material 301 is then hung on the two support rods 91. At this time, the linear motor on the first guide rail 21 drives the second guide rail 22 to move to the left. The second guide rail 22 squeezes the contact end 921, thereby pushing the sliding rod 92 to slide to the left. The elastic element 2 is compressed, and the ejection end 922 pushes the waste material 301 hanging on the support rod 91 down to collect the waste material 301. The linear motor on the first guide rail 21 drives the second guide rail 22 to move to the right, and the elastic element 2 returns to its original position, causing the sliding rod 92 to slide to the right and reset. The connecting plate 5, the fixed cylinder 6, and the workpiece 30 can then continue to move to the right to the grinding area for the grinding process. In this way, the functions of automatic cutting and ejection of waste material 301 are integrated, further improving the continuity of the process and work efficiency.

[0039] Implementation Method 3: Based on Implementation Method 2, refer to Figure 1 , Figure 3 and Figure 12 The finished product grinding device for processing aluminum alloy pedal parts also includes a slant plate 101. The outer box 1 is fixedly connected to the right side of the slant plate 101 located above the right end of the chain 4. The slant plate 101 has a pair of elongated holes 102, with the left end of the elongated holes 102 open. When the connecting plate 5, the fixed cylinder 6 and the workpiece 30 rotate with the chain 4, the middle part of the fixed cylinder 6 enters the elongated hole 102, and the workpiece 30 is blocked above the slant plate 101. The connecting plate 5 and the fixed cylinder 6 continue to rotate with the chain 4, and the workpiece 30 is disengaged from the fixed cylinder 6.

[0040] refer to Figure 1 and Figure 3 The finished product grinding device for processing aluminum alloy foot pedal parts also includes a collection frame 111 and a vibration motor 112. The collection frame 111 located on the lower right side of the inclined plate 101 is fixedly connected to the right side of the outer box 1. A screen is provided inside the collection frame 111, and a vibration motor 112 is installed on the outside of the collection frame 111.

[0041] When the connecting plate 5, the fixed cylinder 6, and the polished workpiece 30 move to the right end of the chain 4, the middle of the fixed cylinder 6 will enter the elongated hole 102, while the workpiece 30 is located above the inclined plate 101. The connecting plate 5 and the fixed cylinder 6 rotate downward with the chain 4, the fixed cylinder 6 leaves the elongated hole 102, and the workpiece 30 is blocked by the inclined plate 101, automatically causing the workpiece 30 to detach from the fixed cylinder 6. The workpiece 30 slides down the inclined plate 101 into the collection frame 111. The vibration motor 112 is controlled to make the collection frame 111 and the workpiece 30 vibrate, causing the debris on the surface of the workpiece 30 to be shaken off. The screen separates the workpiece 30 from the shaken debris, thereby realizing automatic unloading and debris separation.

Claims

1. A finishing polishing device for processing aluminum alloy pedal parts, comprising an outer casing (1), wherein an electric polishing rod (3) and a control mechanism (2) for controlling the position and direction of the electric polishing rod (3) are provided inside the outer casing (1), characterized in that, The outer casing (1) is equipped with two chains (4), and a ring of connecting plates (5) is evenly spaced between the two chains (4). Each connecting plate (5) is connected to a pair of fixed cylinders (6) on the side away from the chain (4). Each fixed cylinder (6) is provided with a pair of sliding clamps (7) at the end away from the connecting plate (5). Each pair of clamps (7) has a curved surface (701) at the end away from each other that matches the circular groove (302) of the workpiece (30). The finished product grinding device for processing aluminum alloy foot pedal parts also includes an extrusion mechanism, which includes a lifting rod (7). 1) and contact plate (73), the clamping block (7) and the fixed cylinder (6) are connected by an elastic element, each pair of clamping blocks (7) has an inclined surface (70) on the side close to each other, each pair of fixed cylinders (6) is slidably connected with a lifting rod (71), the end of the lifting rod (71) close to the clamping block (7) is a pressing end (72) with an inclined surface, the pressing end (72) is used to press the inclined surface (70), and each pair of lifting rods (71) is connected to a contact plate (73) at the end close to the connecting plate (5); the pressing mechanism also includes a guide rod (74) and a limiting plate. (76) The outer box (1) is provided with a guide rod (74) with a fixed position and two limiting plates (76) with fixed positions. The top of both ends of the guide rod (74) has a second inclined surface (75). The guide rod (74) moves upward by pressing the contact plate (73) through the second inclined surface (75). The limiting plate (76) is used to limit the connection plate (5). The finished product grinding device for processing aluminum alloy foot pedal parts also includes a fixed column (81) and an electric cutting wheel (82). The fixed column (81) is connected to the outer box (1). The lower end of the fixed column (81) is installed with Electric cutting wheel (82); The finished product grinding device for processing aluminum alloy foot pedal parts also includes a support rod (91) and a sliding rod (92). The lower end of the fixed column (81) is connected to the support rod (91). The fixed column (81) is provided with a sliding rod (92). An elastic element is connected between the sliding rod (92) and the fixed column (81). The upper end of the sliding rod (92) is the contact end (921) and the lower end is the push-out end (922). The control mechanism (2) will push the sliding rod (92), and the push-out end (922) will push out the waste material (301) on the support rod (91).

2. A finishing polishing device for processing aluminum alloy pedal components according to claim 1, characterized in that, The control mechanism (2) includes a guide rail (21), the top of the outer box (1) is equipped with a guide rail (21), the guide rail (21) is provided with a guide rail (22) that slides left and right, the guide rail (22) is provided with an electric push rod (23) that slides back and forth, the telescopic rod of the electric push rod (23) is connected to a moving plate (24), the moving plate (24) is rotatably connected to a rotating column (25), and the electric polishing rod (3) is installed on the rotating column (25).

3. A finishing polishing device for processing aluminum alloy pedal components according to claim 2, characterized in that, The finished product grinding device for processing aluminum alloy pedal parts also includes a slant plate (101). The right side of the outer box (1) is connected to a slant plate (101) located above the right end of the chain (4). A pair of elongated holes (102) are opened on the slant plate (101), with the left end of the elongated holes (102) open.

4. A finishing polishing device for processing aluminum alloy pedal components according to claim 3, characterized in that... The finished product grinding device for processing aluminum alloy foot pedal parts also includes a collection frame (111) and a vibration motor (112). The outer box (1) is connected to the collection frame (111) located below the inclined plate (101). The collection frame (111) is equipped with a screen, and the vibration motor (112) is installed on the outside of the collection frame (111).

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