Brake pad raw material weighing double-station feeding device

Abstract

The invention provides a brake pad raw material weighing double-station feeding device. The brake pad raw material weighing double-station feeding device comprises a mounting frame, a movable disc, a feeding bin, a material changing frame and a switching mechanism. When the brake pad raw material weighing double-station feeding device is used, a set of conical material receiving barrels with raw materials can be pre-stored on the material changing frame in advance, and during feeding, the raw materials of the set of conical material receiving barrels can be poured out and then placed back to the material changing frame; and the conical material receiving barrels with the raw materials on the movable disc are collected to the material changing frame through the material changing frame, and the vacant conical material receiving barrels are put back to the movable disc, so that replacement of the materials in the conical material receiving barrels is completed. According to the material receiving and feeding device, synchronous operation of material receiving and feeding can be achieved, the operation process is simple, the conical material receiving barrel with raw materials can be reserved in advance, the material receiving operation on the movable disc is not affected, and the flexibility and the feeding efficiency in the production process are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of feeding equipment, and particularly relates to a double-station feeding device for weighing brake pad raw materials. Background Art

[0002] During the hot pressing process of brake pads, it is necessary to place the pre-mixed materials inside the feeding device. Through the feeding device, the materials can be filled into the feeding box according to the set weight. The operator can directly pour the materials inside the feeding box into the mold for forming brake pads. However, most of the current powder feeding devices are single-station output, which outputs after the weighing of the feeding box is completed. After the material is taken, the feeding box needs to enter the weighing unit inside the feeding device again for feeding and then be transported to the outside. During double-station operation, the powder feeding device can only meet the demand of a single station operation at a time and cannot meet the demand of feeding two stations simultaneously. The flexibility of use is poor, which affects the feeding efficiency of the double station. Summary of the Invention

[0003] An embodiment of the present invention provides a double-station feeding device for weighing brake pad raw materials, aiming to solve the problems in the prior art that the flexibility of the brake pad raw material weighing device is poor during use and it cannot meet the demand of feeding two stations simultaneously.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide a double-station feeding device for weighing brake pad raw materials, including:

[0005] A mounting frame;

[0006] A moving disk, which is slidably arranged on the mounting frame in the horizontal direction. Define the moving direction of the moving disk as the first direction, and the direction along the horizontal direction and perpendicular to the first direction as the second direction. Two groups of conical receiving buckets are arranged at intervals on the moving disk;

[0007] A feeding bin, which is installed on the mounting frame and is used to convey raw materials into the conical receiving bucket;

[0008] Two material-changing frames, which are respectively installed on both sides of the mounting frame along the second direction; two groups of placement positions for accommodating the conical receiving buckets are arranged on the material-changing frame;

[0009] A conversion mechanism, which is arranged between the material-changing frame and the moving disk and is used to switch the position of the conical receiving bucket between the moving disk and the material-changing frame.

[0010] In a possible implementation manner, the conversion mechanism includes:

[0011] The lifting frame is installed on the moving disk. The position of the lifting frame on the moving disk has the freedom to be adjusted in the vertical direction, and the lifting frame includes two groups of arc-shaped chucks respectively used to support the arc-shaped chucks on the two conical receiving buckets.

[0012] The moving seat is installed on the material changing frame. The position of the moving seat on the material changing frame has the freedom to move in the second direction.

[0013] The material supporting frame is installed on the moving seat. The position of the material supporting frame on the moving seat has the freedom to be adjusted in the vertical direction. The material supporting frame is rotatably arranged on the moving seat, and two groups of arc-shaped grooves for clamping the conical receiving buckets are arranged on the material supporting frame. The outer diameter of the arc-shaped groove is smaller than the inner diameter of the arc-shaped chuck.

[0014] In a possible implementation manner, the number of the lifting frames is two, and the two lifting frames respectively correspond to the two groups of conical receiving buckets.

[0015] In a possible implementation manner, a support rod is hinged at the bottom of the lifting frame. The bottom end of the support rod is slidably arranged on the mounting frame, and a limit block for limiting the movement of the bottom end of the support rod is further installed on the mounting frame.

[0016] In a possible implementation manner, the material supporting frame includes two relatively moving material supporting plates, and the arc-shaped grooves are arranged on both of the two material supporting plates.

[0017] In a possible implementation manner, two synchronous wheels are rotatably arranged on the material supporting frame. The two synchronous wheels are connected by a synchronous belt, and the two material supporting plates are respectively installed on two sections of the synchronous belt with opposite movement directions.

[0018] In a possible implementation manner, an arc-shaped support plate is fixedly installed on the inner wall of the arc-shaped groove away from the opening. The width of the arc-shaped support plate is smaller than the width of the arc-shaped chuck.

[0019] In a possible implementation manner, a rolling wheel is rotatably arranged at the bottom end of the support rod. A guide rail for accommodating the rolling wheel is installed on the mounting frame. The rotating shafts at both ends of the rolling wheel on the support rod protrude from both sides of the support rod, and a U-shaped card slot for accommodating both ends of the rotating shaft is arranged on the limit block.

[0020] In a possible implementation manner, the moving seat is slidably arranged on the material changing frame in the second direction, and a toothed rod is fixedly installed on the material changing frame. A gear is rotatably arranged on the moving seat, and the gear is meshed with the toothed rod.

[0021] In a possible implementation, a worm gear is installed at the bottom of the material supporting frame, a worm is rotatably arranged on the moving seat and meshes with the worm gear, and a motor for driving the worm to rotate is also installed on the moving seat.

[0022] In the solution shown in the embodiment of the present application, compared with the prior art, by providing a mounting frame, a moving disk is installed on the mounting frame, the moving disk is slidably arranged on the mounting frame, and a driving component for driving the moving disk to move in the first direction is also installed on the mounting frame. During the working state, the moving disk can move to the feeding bin to add materials into the conical material receiving barrel. After the material addition is completed, it moves out from the feeding bin and moves to the material changing frame. And a conversion mechanism is also arranged between the material changing frame and the moving disk. Through the conversion mechanism, the conical material receiving barrel on the moving disk can be first moved to the material changing frame, and then an empty conical material receiving barrel of another group on the material changing frame can be moved to the moving disk. In the present application, when in use, a group of conical material receiving barrels with raw materials can be pre-stored on the material changing frame in advance. When feeding, the raw materials in this group of conical material receiving barrels can be poured out and then put back on the material changing frame, and the conical material receiving barrels with raw materials on the moving disk can be collected on the material changing frame through the material changing frame, and the empty conical material receiving barrels can be put back on the moving disk, thus completing the replacement of the materials in the conical material receiving barrels. It can realize synchronous operation of material receiving and feeding, the operation process is simple, and the conical material receiving barrels with raw materials can be reserved in advance without affecting the material receiving operation on the moving disk, improving the flexibility and feeding efficiency in the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of a double-station feeding device for weighing brake pad raw materials provided by an embodiment of the present invention;

[0024] Figure 2 It is a schematic installation structure diagram of a jacking frame provided by an embodiment of the present invention;

[0025] Figure 3 It is a schematic installation structure diagram of a moving seat and a material supporting frame provided by an embodiment of the present invention;

[0026] Figure 4 It is a schematic installation structure diagram of the material supporting frame on the moving seat provided by an embodiment of the present invention.

[0027] DESCRIPTION OF REFERENCE NUMERALS:

[0028] 1, mounting frame; 2, moving disk; 3, conical material receiving barrel; 4, feeding bin; 5, material changing frame; 51, rack; 6, conversion mechanism; 61, jacking frame; 611, support rod; 612, limiting block; 613, rolling wheel; 62, moving seat; 621, gear; 63, material supporting frame; 631, material supporting plate; 632, synchronous pulley; 633, synchronous belt; 634, arc-shaped support plate; 64, worm gear; 65, worm. Detailed implementation manners

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] Please refer to Figures 1 to 4 , and now the double-station feeding device for weighing brake pad raw materials provided by the present invention will be described. The double-station feeding device for weighing brake pad raw materials includes a mounting frame 1, a moving disk 2, a feeding bin 4, a material changing frame 5, a material changing frame 5 and a conversion mechanism 6. The moving disk 2 is slidably arranged on the mounting frame 1 in the horizontal direction. Define the moving direction of the moving disk 2 as the first direction, and the direction along the horizontal direction and perpendicular to the first direction as the second direction. Two groups of conical receiving barrels 3 are arranged at intervals on the moving disk 2; the feeding bin 4 is installed on the mounting frame 1 and is used to convey raw materials into the conical receiving barrels 3; the number of the material changing frames 5 is two, and the two material changing frames 5 are respectively installed on both sides of the mounting frame 1 along the second direction; two groups of placing positions for accommodating the conical receiving barrels 3 are arranged on the material changing frame 5; the conversion mechanism 6 is arranged between the material changing frame 5 and the moving disk 2 and is used to switch the positions of the conical receiving barrels 3 between the moving disk 2 and the material changing frame 5.

[0031] The double-station feeding device for weighing brake pad raw materials provided in this embodiment, compared with the prior art, is provided with a mounting frame 1. A moving disk 2 is installed on the mounting frame 1. The moving disk 2 is slidably arranged on the mounting frame 1, and a driving component for driving the moving disk 2 to move in the first direction is also installed on the mounting frame 1. When in the working state, the moving disk 2 can move to the position of the feeding bin 4 to add materials into the conical receiving barrels 3. After the materials are added, it moves out from the position of the feeding bin 4 and moves to the position of the material changing frame 5. And a conversion mechanism 6 is also arranged between the material changing frame 5 and the moving disk 2. Through the conversion mechanism 6, the conical receiving barrels 3 on the moving disk 2 can be first moved to the material changing frame 5, and then the empty conical receiving barrels 3 in the other group of the material changing frame 5 can be moved to the moving disk 2. In this application, when in use, a group of conical receiving barrels 3 with raw materials can be pre-stored on the material changing frame 5 in advance. When feeding, the raw materials in this group of conical receiving barrels 3 can be poured out and then put back on the material changing frame 5, and the conical receiving barrels 3 with raw materials on the moving disk 2 can be collected on the material changing frame 5 through the material changing frame 5, and the empty conical receiving barrels 3 can be put back on the moving disk 2, thereby completing the replacement of the materials in the conical receiving barrels 3. It can realize synchronous operation of material receiving and feeding, the operation process is simple, and the conical receiving barrels 3 with raw materials can be reserved in advance, which does not affect the material receiving operation on the moving disk 2, and improves the flexibility and feeding efficiency in the production process.

[0032] In some embodiments, the conversion mechanism 6 can be implemented as follows: Figure 1 , Figure 2 and Figure 3 See also Figure 1 , Figure 2 and Figure 3 , the conversion mechanism 6 includes a lifting frame 61, a moving seat 62 and a supporting frame 63. The lifting frame 61 is installed on the moving plate 2, and the position of the lifting frame 61 on the moving plate 2 has the freedom to be adjusted in the vertical direction, and the lifting frame 61 includes two groups of arc-shaped slots for holding up two groups of conical receiving barrels 3 respectively; the moving seat 62 is installed on the material changing frame 5, and the position of the moving seat 62 on the material changing frame 5 has the freedom to move in the second direction; the supporting frame 63 is installed on the moving seat 62, and the position of the supporting frame 63 on the moving seat 62 has the freedom to be adjusted in the vertical direction, the supporting frame 63 is rotatably arranged on the moving seat 62, and the supporting frame 63 is provided with two groups of arc-shaped slots for clamping the conical receiving barrel 3, and the outer diameter of the arc-shaped slot is smaller than the inner diameter of the arc-shaped slot. A plurality of arc-shaped slots are arranged on the side of the lifting frame 61 close to the material changing frame 5, and a plurality of mounting holes for placing the conical material receiving barrel 3 are arranged on the movable plate 2, and the arc-shaped slots are arranged coaxially with the mounting holes. When the lifting frame 61 moves upward, the conical material receiving barrel 3 on the movable plate 2 can be lifted up, and the conical material receiving barrel 3 can be separated from the movable plate 2. At this time, the movable seat 62 can move toward the direction close to the movable plate 2, so that the supporting frame 63 on the movable seat 62 is located below the conical material receiving barrel 3, and when the supporting frame 63 moves upward, the conical material receiving barrel 3 can be stuck inside the arc-shaped slot. And as the supporting frame 63 moves upward, the conical material receiving barrel 3 is separated from the lifting frame 61, and moves in the direction away from the lifting frame 61 through the movable seat 62, completing the transfer of the conical material receiving barrel 3 on the lifting frame 61 to the supporting frame 63.

[0033] Optionally, in this embodiment, when the conical material receiving barrel 3 is transferred from the bracket 63 to the lifting frame 61, the height of the bracket 63 can be raised first, and then the movable seat 62 can be moved, so that the conical material receiving barrel 3 on the bracket 63 is located above the arc-shaped slot on the lifting frame 61, and the bracket 63 moves downward, so that the conical material receiving barrel 3 can be stuck on the arc-shaped slot. The structure is simple, and the switching of the position of the conical material receiving barrel 3 between the lifting frame 61 and the bracket 63 can be completed through the same set of mechanisms.

[0034] In some embodiments, the jacking frame 61 can be used as follows: Figure 1 , Figure 2 See also Figure 1 , Figure 2, the number of the lifting frames 61 is two, and the two lifting frames 61 respectively correspond to two groups of conical feeding barrels 3. The number of the lifting frames 61 is two, and the two lifting frames 61 respectively correspond to two material changing frames 5. Moreover, the two lifting frames 61 are both slidably arranged on the moving plate 2 independently, so that the operation of the single-side working station can also be controlled independently. It can be adjusted freely according to the on-site construction conditions.

[0035] Specifically, in this embodiment, a lifting mechanism for lifting the conical feeding barrel 3 when adding raw materials into the conical feeding barrel 3 is further arranged below the mounting frame 1, and a weighing unit for weighing the weight of the conical feeding barrel 3 is further installed on the top of the lifting mechanism. When hot pressing brake pads at only one single-side working station, the operation of feeding materials can be carried out only by using the single-side conical feeding barrel 3.

[0036] In some embodiments, the above-mentioned lifting frame 61 can adopt the structure as Figure 2 shown. Refer to Figure 2 , a support rod 611 is hinged at the bottom of the lifting frame 61, the bottom end of the support rod 611 is slidably arranged on the mounting frame 1, and a limiting block 612 for limiting the movement of the bottom end of the support rod 611 is further installed on the mounting frame 1. A support rod 611 is hinged at the bottom of the lifting frame 61. When the moving plate 2 is inside the feeding bin 4, the support rod 611 is inclined in the vertical direction, and the bottom end of the support rod 611 is inclined towards the direction close to the limiting block 612. And during the movement of the moving plate 2, the bottom end of the support rod 611 always keeps the state of inclining towards the direction close to the limiting block 612. When the moving plate 2 moves outward until the end of the support rod 611 abuts against the limiting block 612, when the moving plate 2 continues to move forward, the end of the support rod 611 far away from the limiting block 612 will turn upwards, thereby driving the lifting frame 61 to move upwards. Without using an additional power component, the lifting frame 61 can be automatically driven to move up and down when the moving plate 2 moves. And when the moving plate 2 moves towards the direction close to the feeding bin 4, the lifting frame 61 moves downwards according to its own gravity and abuts against the top surface of the moving plate 2.

[0037] Preferably, in this embodiment, a guide post for slidably arranging on the moving plate 2 is fixedly installed on the lifting frame 61, and an elastic member for pushing the guide post to move downwards is sleeved outside the guide post. One end of the elastic member abuts against the guide post, and the other end abuts against the moving plate 2.

[0038] Specifically, in this embodiment, two sprockets are arranged at intervals along the first direction on the mounting frame 1, and a chain is meshed between the two sprockets. The moving plate 2 is fixedly installed on the chain, and chains are arranged on both sides of the moving plate 2 along the second direction.

[0039] In some embodiments, the above-mentioned material supporting frame 63 can adopt the structure as Figure 3 shown. Refer toFigure 3 , the stock support 63 includes two relatively movable stock plates 631, and arc grooves are provided on both of the two stock plates 631. Two relatively movable stock plates 631 are provided on the stock support 63, and arc grooves corresponding to the arc-shaped card slots on the lifting frame 61 are provided on the opposite sides of the two stock plates 631. On the one hand, the position replacement of the conical material receiving barrel 3 can be realized by the movement of the stock plate 631, reducing the movement of the moving seat 62. On the other hand, when the stock support 63 rotates on the moving seat 62, the two stock plates 631 can be moved in a relatively close direction, so that the centrifugal force generated by the conical material receiving barrel 3 during the rotation of the stock support 63 can be reduced.

[0040] Specifically, in this embodiment, a chute with a length direction along the relative direction of the two stock plates 631 is provided at the top of the stock support 63, and a slider slidably arranged inside the chute is fixedly installed at the bottom of the stock plate 631, so as to guide the two stock plates 631 to move relatively in the relative direction.

[0041] In some embodiments, the above-mentioned stock plate 631 can adopt a structure such as Figure 3 , Figure 4 shown. Referring to Figure 3 , Figure 4 together, two synchronous wheels 632 are rotatably arranged on the stock support 63, a synchronous belt 633 is drivingly connected between the two synchronous wheels 632, and the two stock plates 631 are respectively installed on two sections with opposite movement directions of the synchronous belt 633. Along the length direction of the stock support 63, the two synchronous wheels 632 are respectively located at both ends of the stock support 63. A synchronous belt 633 is also meshingly arranged between the two synchronous wheels 632, and the synchronous belt 633 is drivingly connected with the synchronous wheels 632. The two sections of the synchronous belt 633 on both sides of the synchronous wheels 632 move in opposite directions respectively, and the sliders at the bottoms of the two stock plates 631 are respectively fixedly installed on the two sections. Thus, when the synchronous wheels 632 rotate, the two stock plates 631 can be displaced relatively, with a simple structure and convenient operation.

[0042] Preferably, in this embodiment, a driving wheel is also rotatably arranged between the two synchronous wheels 632, the outer diameter of the driving wheel is larger than the outer diameters of the two synchronous wheels 632, and the driving wheel is meshingly arranged with the synchronous belt 633, and a driving member for driving the driving wheel to rotate is fixedly installed on the stock support 63. The driving member is a motor, and the driving member can drive the driving wheel to rotate, thereby driving the two stock plates 631 to move relatively.

[0043] Preferably, in this embodiment, the axis of the driving wheel is coaxially arranged with the axis of the rotation shaft of the stock support 63 on the moving seat 62.

[0044] In some embodiments, the above-mentioned stock support 63 can adopt a structure such as Figure 3 shown. Refer toFigure 3 , an arc-shaped support plate 634 is fixedly installed on the inner wall of the arc-shaped groove away from the opening. The width of the arc-shaped support plate 634 is smaller than the width of the arc-shaped card slot. The middle part of the arc-shaped support plate 634 is fixedly installed on the inner wall of the arc-shaped groove. The arc-shaped support plate 634 can play a role in positioning and supporting the conical material receiving barrel 3. At the same time, the width of the arc-shaped support plate 634 is smaller than the width of the upper opening of the arc-shaped card slot. Therefore, when the material supporting frame 63 moves towards the direction close to the arc-shaped card slot and jacks out the conical material receiving barrel 3, it can avoid interference between the arc-shaped support plate 634 and the jacking frame 61. At the same time, the arc-shaped support plate 634 can clamp the conical material receiving barrel 3 inside the arc-shaped groove, ensuring the stability of the position of the conical material receiving barrel 3.

[0045] In some embodiments, the above-mentioned support rod 611 can adopt the structure as Figure 2 shown. Refer to Figure 2 , a rolling wheel 613 is rotatably arranged at the bottom end of the support rod 611. A guide rail for accommodating the rolling wheel 613 is installed on the mounting frame 1. The rotating shaft of the rolling wheel 613 on the support rod 611 protrudes from both sides of the support rod 611, and a U-shaped card slot for accommodating both ends of the rotating shaft is arranged on the limit block 612. A guide rail for supporting the rolling wheel 613 is installed at the bottom of the mounting frame 1. A guide groove for accommodating the rolling wheel 613 is arranged at the top of the guide rail. The length direction of the guide groove is arranged along the length direction of the guide rail. A rotating shaft for installing the rolling wheel 613 is also fixedly installed on the support rod 611. The rolling wheel 613 is rotatably arranged on the rotating shaft, and a U-shaped card slot for accommodating the rotating shaft is arranged on the limit block 612. When the support rod 611 moves towards the direction close to the limit block 612, the rotating shaft slides into the U-shaped card slot, and the rotating shaft is limited by the U-shaped card slot. The stability of the position of the rolling wheel 613 can be ensured during the process of jacking up the jacking frame 61.

[0046] In some embodiments, the above-mentioned moving seat 62 can adopt the structure as Figure 3 , Figure 4 shown. Refer to Figure 3 , Figure 4, the moving seat 62 is slidably arranged on the loading rack 5 in the second direction, and a rack 51 is fixedly installed on the loading rack 5. A gear 621 is rotatably arranged on the moving seat 62, and the gear 621 is meshed with the rack 51. A guiding slide rail is fixedly installed on the loading rack 5, and a slider slidably arranged on the guiding slide rail is also installed on the moving seat 62, so as to guide the movement of the moving seat 62. And a rack 51 is also fixedly installed on the top of the loading rack 5. The length direction of the rack 51 is arranged along the sliding direction of the moving seat 62. The gear 621 is rotatably arranged on the moving seat 62, and the gear 621 is meshed with the rack 51. A motor for driving the rotation of the gear 621 is installed on the moving seat 62. When the motor drives the gear 621 to rotate, the moving seat 62 can move in the second direction. The structure is simple and convenient to use.

[0047] In some embodiments, the above-mentioned material supporting rack 63 can adopt the structure as Figure 3 , Figure 4 shown. Referring to Figure 3 , Figure 4 together, a worm gear 64 is installed at the bottom of the material supporting rack 63. A worm 65 meshed with the worm gear 64 is rotatably arranged on the moving seat 62, and a motor for driving the rotation of the worm 65 is also installed on the moving seat 62. A worm gear 64 is installed at the bottom of the material supporting rack 63. The worm gear 64 is rotatably arranged on the moving seat 62. When the worm gear 64 rotates, it can drive the separating rack to rotate on the moving seat 62 synchronously. A worm 65 meshed with the worm gear 64 is also rotatably arranged on the moving seat 62. At the same time, the worm 65 is driven to rotate by the motor, and the motor is installed on the moving seat 62. When the motor drives the worm 65 to rotate, the worm gear 64 can be driven to rotate by the worm 65. When the worm gear 64 rotates, it can drive the material supporting rack 63 to rotate together, and the stability of the position of the material supporting rack 63 can be realized through the self-locking function of the worm gear 64 and the worm 65.

[0048] Specifically, in this embodiment, a lifting assembly for pushing the material supporting rack 63 to move up and down is further arranged between the material supporting rack 63 and the worm gear 64. The lifting assembly includes a threaded sleeve rotatably arranged on the worm gear 64 and a lead screw fixedly installed at the bottom of the material supporting rack 63. When the threaded sleeve rotates, the lead screw can be driven to move up and down. Thus, the material supporting rack 63 is driven to move up and down.

[0049] Preferably, in this embodiment, the lifting assembly can adopt an existing screw jack. The specific structure is prior art and will not be elaborated here.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A double-station feeding device for weighing raw materials of brake pads, characterized in that: include: Mounting frame (1); A movable plate (2) is slidably arranged on the mounting frame (1) along a horizontal direction, wherein the moving direction of the movable plate (2) is defined as a first direction, and a direction along a horizontal direction and perpendicular to the first direction is defined as a second direction, and two groups of conical material receiving barrels (3) are arranged on the movable plate (2) at intervals; A loading bin (4) is mounted on the mounting frame (1) and is used to transport raw materials into the conical receiving barrel (3); There are two material changing racks (5), and the two material changing racks (5) are respectively installed on both sides of the mounting frame (1) along the second direction; the material changing rack (5) is provided with two groups of placement positions for accommodating the conical material receiving barrel (3); A conversion mechanism (6) is arranged between the material changing rack (5) and the movable plate (2) and is used to switch the position of the conical material receiving barrel (3) between the movable plate (2) and the material changing rack (5).

2. The double-station feeding device for weighing raw materials of brake pads according to claim 1, characterized in that: The conversion mechanism (6) comprises: A lifting frame (61) is installed on the movable plate (2), the position of the lifting frame (61) on the movable plate (2) has a degree of freedom to be adjusted in the vertical direction, and the lifting frame (61) includes two groups of arc-shaped slots respectively used to lift the two groups of conical material receiving barrels (3); A movable seat (62) is mounted on the material changing rack (5), and the position of the movable seat (62) on the material changing rack (5) has the freedom to move along the second direction; A support frame (63) is mounted on the movable seat (62); the position of the support frame (63) on the movable seat (62) has the freedom to be adjusted in the vertical direction; the support frame (63) is rotatably arranged on the movable seat (62) and is provided with two groups of arc grooves for clamping the conical material receiving barrel (3); the outer diameter of the arc groove is smaller than the inner diameter of the arc clamping groove.

3. The double-station feeding device for weighing raw materials of brake pads as claimed in claim 2, characterized in that: The number of the jacking frames (61) is two, and the two jacking frames (61) correspond to two groups of the conical material receiving barrels (3) respectively.

4. The double-station feeding device for weighing raw materials of brake pads as claimed in claim 2 or 3, characterized in that: A support rod (611) is hingedly provided at the bottom of the lifting frame (61), the bottom end of the support rod (611) is slidably provided on the mounting frame (1), and a limit block (612) for limiting the movement of the bottom end of the support rod (611) is also installed on the mounting frame (1).

5. The double-station feeding device for weighing raw materials of brake pads as claimed in claim 2, characterized in that: The support frame (63) comprises two support plates (631) that move relatively to each other, and the arc-shaped groove is disposed on both of the support plates (631).

6. The double-station feeding device for weighing raw materials of brake pads as claimed in claim 5, characterized in that: Two synchronous wheels (632) are rotatably arranged on the support frame (63), and the two synchronous wheels (632) are transmission-connected with a synchronous belt (633). The two support plates (631) are respectively installed at two sections of the synchronous belt (633) with opposite movement directions.

7. The double-station feeding device for weighing raw materials of brake pads as claimed in claim 2, characterized in that: An arc-shaped support plate (634) is fixedly mounted on the inner wall of the arc-shaped groove away from the opening, and the width of the arc-shaped support plate (634) is smaller than the width of the arc-shaped slot.

8. The double-station feeding device for weighing raw materials of brake pads as claimed in claim 4, characterized in that: A rolling wheel (613) is rotatably arranged at the bottom end of the support rod (611); a guide rail for accommodating the rolling wheel (613) is installed on the mounting frame (1); the rolling wheel (613) is arranged on both sides of the support rod (611) at both ends of the rotating shaft on the support rod (611) and protrudes out of the support rod (611); and the limit block (612) is provided with a U-shaped groove for accommodating the two ends of the rotating shaft.

9. The double-station feeding device for weighing raw materials of brake pads as claimed in claim 2, characterized in that: The movable seat (62) is slidably arranged on the material changing rack (5) along the second direction, and a gear rod (51) is fixedly mounted on the material changing rack (5). A gear (621) is rotatably arranged on the movable seat (62), and the gear (621) and the gear rod (51) are meshed with each other.

10. The double-station feeding device for weighing raw materials of brake pads as claimed in claim 2, characterized in that: A worm gear (64) is installed at the bottom of the support frame (63), a worm (65) is rotatably arranged on the movable seat (62) and is meshed with the worm gear (64), and a motor for driving the worm (65) to rotate is also installed on the movable seat (62).

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