Mechanical following powder feeding system for rotary drum equipment

Abstract

This application discloses a mechanical following powder feeding system for a rotating drum equipment, including a powder feeding mechanism and a linkage mechanism. The powder feeding mechanism is disposed above the drum and slides along the tangential direction of the drum's rotation, used to feed powder into the mold cavity on the drum surface. The linkage mechanism consists of a horizontal guide assembly, a swing arm assembly, a connecting assembly, a transmission seat, and a transmission assembly, etc., to establish a linkage relationship between the powder feeding mechanism and the drum. When the drum rotates, the powder feeding mechanism moves back and forth along the tangential direction under the action of the linkage mechanism, starting to feed powder at the powder feeding start point, moving synchronously with the mold cavity to be filled on the drum and continuously feeding powder, and stopping powder feeding at the powder feeding end point. This application achieves the technical effects of achieving precise powder feeding, improving production efficiency and product quality, and ensuring the uniformity and stability of powder feeding.

Description

Technical Field

[0001] This application relates to the field of material feeding and mechanical linkage, and in particular to a mechanical following powder feeding system for a rotating drum device. Background Technology

[0002] Laundry detergent pods, as a high-efficiency and convenient washing product, have seen rapid development in production technology in recent years. In the production process of laundry detergent pods, the mold cylinder and powder dispensing device are key equipment combinations. The mold cylinder uses cavities distributed on its surface to quantitatively fill the powder, thus providing a foundation for subsequent molding processes. The application of this technology has greatly improved the automation level and production efficiency of laundry detergent pod production, while ensuring product quality stability, playing a vital role in promoting the development of the laundry industry towards intelligence and efficiency. With the increasing demand from consumers for both the quality and quantity of laundry detergent pods, every aspect of the production process needs further optimization and improvement, especially the accuracy and efficiency of powder dispensing, which has become a key factor in improving overall production levels.

[0003] In actual production, to achieve precise powder dispensing, the common method is to fix the position of the powder dispensing device and use the rotation of the roller to sequentially dispense powder into the mold cavity. Some manufacturers control the powder flow rate and landing point by adjusting the size and shape of the powder dispensing device's outlet; others install auxiliary devices such as baffles and guide plates around the roller's mold cavity to guide the powder accurately into the cavity. Additionally, the position and angle of the powder dispensing device are periodically calibrated to ensure its relative positional accuracy with the roller's mold cavity. However, while these methods can improve the accuracy of powder dispensing to some extent, they still have many problems.

[0004] The aforementioned conventional methods are insufficient to address the accuracy issue of relative movement between the powder dispensing device and the roller mold cavity in practical applications. Because the roller rotates continuously while the powder dispensing device is typically stationary, deviations can easily occur during powder delivery. If the powder dispensing device cannot maintain synchronization with the roller mold cavity, the powder may not fall accurately into the cavity, resulting in powder waste and consequently affecting product yield and production efficiency. Furthermore, this accuracy problem becomes more pronounced as the roller speed increases. Summary of the Invention

[0005] This application provides a mechanical following powder feeding system for a rotary drum device.

[0006] The mechanical following powder feeding system for rotary drum equipment provided in this application adopts the following technical solution:

[0007] A mechanical powder-feeding system for a rotating drum device includes a powder-feeding mechanism and a linkage mechanism. The powder-feeding mechanism is disposed above the drum and slides along the tangential direction of the drum's rotation, and is used to feed powder into the mold cavity on the drum surface. The linkage mechanism forms a linkage relationship between the powder-feeding mechanism and the drum. During the continuous rotation of the drum, the powder-feeding mechanism moves back and forth along the tangential direction of the drum's rotation under the linkage of the linkage mechanism. The two endpoints of the back-and-forth movement path of the powder-feeding mechanism are the powder-feeding start point and the powder-feeding end point, respectively. The powder-feeding mechanism starts the powder-feeding action at the powder-feeding start point. Under the linkage of the linkage mechanism, the powder-feeding mechanism moves forward synchronously with the mold cavity to be filled on the drum surface, continuously feeding powder into the mold cavity during the forward movement. The powder-feeding mechanism stops the powder-feeding action at the powder-feeding end point.

[0008] By adopting the above technical solution, the powder feeding mechanism is positioned above the drum and slides along its rotational tangent, allowing it to better adapt to the drum's rotation. The linkage mechanism establishes a linkage between the powder feeding mechanism and the drum, enabling the powder feeding mechanism to move back and forth along the tangent direction as the drum rotates continuously, achieving synchronous movement with the filling cavity on the drum surface. Powder feeding begins at the starting point and stops at the ending point, improving the synchronization between the powder feeding device and the drum cavity. This ensures precise powder feeding, reduces powder feeding deviation, and thus improves product qualification rate and production efficiency. It also avoids problems such as inaccurate powder feeding, waste, and reduced production efficiency caused by a fixed powder feeding device unable to adapt to drum rotation.

[0009] Preferably, the linkage mechanism includes:

[0010] A horizontal guide assembly is located above the drum. The powder feeding mechanism is horizontally slidably connected to the horizontal guide assembly. Under the guidance of the horizontal guide assembly, the powder feeding mechanism can move back and forth along the tangential direction of the drum's rotation.

[0011] A swing arm assembly is rotatably connected to the central axis of the drum, with one end of the swing arm assembly extending above the drum.

[0012] A connecting component is provided at the end of the swing arm assembly, and the connecting component is provided with a guide groove. The powder feeding mechanism is provided with a slider, and the slider is slidably connected to the guide groove.

[0013] A transmission base, wherein an eccentric wheel is rotatably connected to the transmission base, and a connecting rod is provided between the eccentric shaft of the eccentric wheel and the swing arm;

[0014] The transmission assembly is linked between the rotation shaft of the eccentric wheel and the central shaft of the drum;

[0015] During the continuous rotation of the drum, the eccentric wheel rotates continuously following the central axis of the drum under the transmission action of the transmission assembly. The swing arm assembly swings back and forth under the driving action of the eccentric wheel and the linkage action of the connecting rod. The powder feeding mechanism slides horizontally back and forth under the linkage action of the connecting assembly and the guiding action of the horizontal guide assembly.

[0016] By adopting the above technical solution, the powder feeding mechanism can move back and forth along the tangent of the drum rotation direction with the help of the horizontal guide component, ensuring accurate powder feeding movement path; the cooperation of the swing arm assembly, connecting assembly, transmission seat, eccentric wheel, connecting rod and transmission assembly enables the eccentric wheel to rotate with the central axis of the drum, driving the swing arm assembly to swing back and forth, thereby allowing the powder feeding mechanism to slide horizontally back and forth under the action of the connecting assembly and the horizontal guide component, realizing synchronous movement of the powder feeding mechanism and the drum mold cavity, improving the synchronization between the powder feeding device and the drum mold cavity, realizing accurate powder feeding, and improving product qualification rate and production efficiency.

[0017] Preferably, the horizontal guide assembly includes a mounting base and guide rods symmetrically arranged on both sides of the powder feeding mechanism, wherein the guide rods are horizontally slidably connected to the mounting base.

[0018] By adopting the above technical solution, the powder feeding mechanism can move back and forth more stably along the tangential direction of the drum rotation with the cooperation of the mounting base and the guide rod. This ensures the guidance and stability of the powder feeding mechanism when it moves back and forth under the action of the linkage mechanism, thereby improving the synchronization between the powder feeding device and the drum mold cavity. This helps to achieve accurate powder feeding and improve the product qualification rate and production efficiency.

[0019] Preferably, the swing arm assembly includes a working arm and a transmission arm that are perpendicular to each other. The connection between the working arm and the transmission arm is connected to the central axis of the drum via a bearing. A connecting frame is provided at the end of the working arm away from the central axis of the drum, and the connecting assembly is provided at the connecting frame. The end of the transmission arm away from the central axis of the drum is fixedly connected to a connecting rod.

[0020] By adopting the above technical solution, the swing arm assembly adopts a structure of mutually perpendicular working arms and transmission arms, and the working arms and transmission arms are connected to the central axis of the drum through bearings, so that the swing arm assembly can rotate flexibly around the central axis of the drum; a connecting frame is set at the end of the working arm and a connecting component is set at the connecting frame, which can effectively transmit the swing of the swing arm assembly to the connecting component, thereby driving the powder feeding mechanism to move; the transmission arm is fixedly connected to the connecting rod, ensuring the stability and reliability of the swing arm assembly when the eccentric wheel drives the swing arm assembly to swing through the connecting rod, so that the powder feeding mechanism can accurately move back and forth along the tangent direction of the drum rotation under the action of the linkage mechanism, realizing the synchronous movement of the powder feeding mechanism and the filling cavity on the surface of the drum, improving the accuracy of powder feeding, thereby improving the product qualification rate and production efficiency.

[0021] Preferably, the connecting frame includes a horizontal bar and a vertical bar that are perpendicular to each other. The vertical bar is rotatably connected to the central axis of the drum, and the vertical bar and the working arm are symmetrically distributed on both sides of the drum. The two ends of the horizontal bar are fixedly connected to the upper end of the vertical bar and the upper end of the working arm, respectively. The connecting frame swings synchronously with the working arm.

[0022] By adopting the above technical solution, the swing arm assembly uses a structure of mutually perpendicular working arms and transmission arms. The working arms and transmission arms are connected to the central axis of the drum through bearings, allowing the swing arm assembly to rotate flexibly around the central axis of the drum. A connecting frame is set at the end of the working arm, and a connecting component is set at the connecting frame, which can effectively transmit the swing of the swing arm assembly to the connecting component, thereby driving the powder feeding mechanism to move. The transmission arm is fixedly connected to the connecting rod, ensuring the stability and reliability of the swing arm assembly when the eccentric wheel drives the swing arm assembly to swing through the connecting rod. At the same time, the specific structural design of the swing arm assembly can ensure that it can swing back and forth under the drive of the eccentric wheel and the linkage of the connecting rod, thereby driving the powder feeding mechanism to slide accurately back and forth horizontally, realizing the synchronous movement of the powder feeding mechanism and the filling cavity on the surface of the drum, improving the accuracy of powder feeding, thereby improving the product qualification rate and production efficiency.

[0023] Preferably, the connecting assembly includes a support fixed at the connecting frame and a connector disposed at the support, and the guide groove is disposed at the connector and extends vertically.

[0024] By adopting the above technical solution, the guide groove of the connector in the connecting component extends vertically and cooperates with the slider of the powder feeding mechanism, ensuring that the powder feeding mechanism can smoothly slide back and forth horizontally under the linkage of the connecting component and the guidance of the horizontal guide component, thereby accurately realizing the powder feeding.

[0025] Preferably, the support member has an adjustment groove, the length direction of which is consistent with the sliding direction of the powder feeding mechanism, and the connecting member can be adjusted along the direction of the adjustment groove and locked by threaded fasteners.

[0026] By adopting the above technical solution, based on the accurate powder delivery achieved by the powder dispensing mechanism and the linkage mechanism working together, the adjustment groove opened in the support component allows the position of the connecting component to be adjusted along the sliding direction of the powder dispensing mechanism. Then, it is locked with threaded fasteners, which can flexibly adjust the position of the connecting component, further optimize the synchronization between the powder dispensing mechanism and the roller mold cavity, and improve the accuracy of powder delivery.

[0027] Preferably, the transmission assembly includes a first synchronous roller, a second synchronous roller, a synchronous belt, a driving gear, and a driven gear. The driving gear is coaxially fixedly connected to the central shaft of the roller, the driven gear is coaxially fixedly connected to the first synchronous roller, the eccentric wheel is coaxially fixedly connected to the second synchronous roller, the synchronous belt is sleeved between the first and second synchronous rollers and engages for transmission, and the driving gear and the driven gear engage for transmission.

[0028] By adopting the above technical solution, the transmission component is coaxially fixed with the central shaft of the drum by the driving gear, coaxially fixed with the first synchronous roller by the driven gear, and coaxially fixed with the second synchronous roller by the eccentric wheel. The synchronous belt is sleeved between the first and second synchronous rollers, and the driving gear and the driven gear mesh to transmit the rotation of the drum stably and accurately to the eccentric wheel, ensuring that the eccentric wheel rotates according to a predetermined pattern. This allows the swing arm assembly to drive the powder feeding mechanism to slide horizontally back and forth as required, further ensuring the synchronization between the powder feeding mechanism and the drum mold cavity, achieving accurate powder feeding, and improving product qualification rate and production efficiency.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. The powder feeding mechanism is made to move back and forth along the tangent of the drum as the drum rotates continuously, and move forward synchronously with the mold cavity to be filled, thereby improving the synchronization between the powder feeding device and the drum mold cavity;

[0031] 2. The powder dispensing mechanism can move synchronously with the mold cavity to dispense powder, achieving precise powder dispensing and avoiding situations where the powder cannot fall accurately into the mold cavity;

[0032] 3. It solved the accuracy problem when the powder feeding device moves relative to the roller mold cavity, reducing powder waste and improving product qualification rate and production efficiency. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of a mechanical following powder feeding system for a rotating drum device according to an embodiment of this application.

[0034] Figure 2 This is a schematic diagram of the structure behind the hidden roller of a mechanical following powder feeding system for a rotating drum device according to an embodiment of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Roller; 11. Mold cavity; 12. Central shaft; 2. Horizontal guide assembly; 21. Mounting base; 22. Guide rod; 3. Powder feeding mechanism; 31. Gate mechanism; 32. Screw feeding mechanism; 33. Slider; 4. Linkage mechanism; 41. Transmission base; 42. Connecting rod; 43. Eccentric wheel; 44. Swing arm assembly; 441. Working arm; 442. Transmission arm; 45. Transmission assembly; 451. Drive gear; 452. Driven gear; 453. First synchronous roller; 454. Second synchronous roller; 46. Connecting frame; 461. Horizontal rod; 462. Vertical rod; 47. Connecting assembly; 471. Support member; 472. Connecting member; 473. Guide groove. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0037] This application discloses a mechanical following powder feeding system for a rotating drum 1 device, referring to... Figure 1 and Figure 2 The system includes a powder dispensing mechanism 3 and a linkage mechanism 4. The powder dispensing mechanism 3 is positioned above the roller 1 and slides along the tangential direction of the roller 1's rotation. The linkage mechanism 4 establishes a linkage relationship between the powder dispensing mechanism 3 and the roller 1. This allows the powder dispensing mechanism 3 to move back and forth along the tangential direction of the roller 1's rotation under the linkage of the linkage mechanism 4 during the continuous rotation of the roller 1. This enables the powder dispensing mechanism 3 to better cooperate with the mold cavity 11 on the surface of the roller 1, achieving a precise powder dispensing effect. If the powder dispensing mechanism 3 cannot move synchronously with the roller 1, the powder dispensing will easily become inaccurate when the roller 1 rotates at high speed. This linkage method effectively avoids this problem.

[0038] Specifically, the powder feeding mechanism 3 is used to feed powder into the mold cavities 11 on the surface of the roller 1. The main body of the powder feeding mechanism 3 is a hopper structure, which can be made of stainless steel, which has good corrosion resistance and strength. Multiple discharge ports are provided at the bottom of the hopper structure and are synchronously controlled to open and close by a gate mechanism 31. Multiple screw feeding mechanisms 32, commonly used in material conveying, consisting of screws and helical blades, are installed at the bottom of the hopper structure to facilitate continuous feeding. Combined with the opening and closing control of the gate mechanism 31, this facilitates the quantitative flow of powder. Furthermore, the multiple discharge ports correspond one-to-one with several mold cavities 11 in each row of the roller 1, which helps improve the powder feeding efficiency of the equipment. The gate mechanism 31 uses a vertical cylinder and a vertical baffle. The vertical cylinder drives the baffle to move up and down, realizing the opening and closing action of the discharge ports.

[0039] In this embodiment, the roller 1 is mounted on the frame of the equipment, and the central shaft 12 of the roller 1 is rotatably connected to the frame via bearings. Multiple rows of mold cavities 11 are provided on the surface of the roller 1. Furthermore, the two endpoints of the reciprocating movement path of the powder feeding mechanism 3 are the powder feeding start point and the powder feeding end point, respectively. When the powder feeding mechanism 3 is at the powder feeding start point, it begins the powder feeding action. At this time, the discharge port opens, and the powder begins to fall into the mold cavities 11 on the surface of the roller 1 to be filled. Under the linkage of the linkage mechanism 4, the powder feeding mechanism 3 moves forward synchronously with the mold cavity 11 to be filled on the surface of the roller 1. During the forward movement, it continuously feeds powder into the mold cavity 11 to be filled. When the powder feeding mechanism 3 moves to the powder feeding termination point, it stops the powder feeding action and the discharge port is closed. Then, as the roller 1 continues to rotate, the powder feeding mechanism 3 retracts to the powder feeding start point under the linkage of the linkage mechanism 4. At this time, the next row of mold cavities to be filled just moves to the powder feeding start point of the powder feeding mechanism 3 to start a new round of powder feeding operation. The powder feeding is smooth and can ensure that the powder falls accurately into the mold cavity 11, avoiding the problem of powder waste and inaccurate feeding caused by excessive relative movement.

[0040] In this embodiment, the linkage mechanism 4 includes a horizontal guide assembly 2, a swing arm assembly 44, a connecting assembly 47, a transmission seat 41, an eccentric wheel 43, a connecting rod 42, and a transmission assembly 45.

[0041] Specifically, the horizontal guide assembly 2 is located above the roller 1, and the powder feeding mechanism 3 is horizontally slidably connected to the horizontal guide assembly 2. Under the guidance of the horizontal guide assembly 2, the powder feeding mechanism 3 can move back and forth along the tangential direction of the rotation of the roller 1. The horizontal guide assembly 2 includes a mounting base 21 and guide rods 22 symmetrically arranged on both sides of the powder feeding mechanism 3. The mounting base 21 can be a flat structure, fixed to the frame of the roller 1 equipment by bolts. The guide rods 22 are slender rod-shaped structures, usually made of metal, such as aluminum alloy, which has high strength and rigidity. The guide rods 22 are horizontally slidably connected to the mounting base 21, which has corresponding holes or slots in which the guide rods 22 can slide freely. The function of the guide rods 22 is to provide horizontal guidance for the powder feeding mechanism 3, ensuring that the powder feeding mechanism 3 moves along the correct path.

[0042] In this embodiment, the swing arm assembly 44 is rotatably connected to the central shaft 12 of the roller 1, with one end extending above the roller 1. Specifically, the swing arm assembly 44 includes a working arm 441 and a transmission arm 442 that are perpendicular to each other. The connection between the working arm 441 and the transmission arm 442 is connected to the central shaft 12 of the roller 1 via a bearing. This ensures that the swing arm assembly 44 and the roller 1 are coaxial, making the swing of the swing arm assembly 44 more compatible with the rotation of the roller 1. The bearing can be a rolling bearing, which can reduce friction during swinging. A connecting frame 46 is provided at the end of the working arm 441 away from the central shaft 12 of the roller 1, and the connecting frame 46 is used to install the connecting assembly 47. The connecting frame 46 includes a horizontal rod 461 and a vertical rod 462 that are perpendicular to each other. The vertical rod 462 is rotatably connected to the central axis 12 of the roller 1, and the vertical rod 462 and the working arm 441 are symmetrically distributed on both sides of the roller 1. The two ends of the horizontal rod 461 are fixedly connected to the upper ends of the vertical rod 462 and the upper ends of the working arm 441, respectively. The connecting frame 46 swings synchronously with the working arm 441. This structure enables the swing arm assembly 44 to stably drive the connecting assembly 47 and the powder feeding mechanism 3 to move.

[0043] In this embodiment, the connecting component 47 is disposed at the connecting bracket 46 at the end of the swing arm assembly 44, specifically installed on the outside of the vertical rod 462. The connecting component 47 is provided with a guide groove 473, and the powder dispensing mechanism 3 is provided with a slider 33, which is slidably connected to the guide groove 473. Horizontal sliding is achieved through the cooperation of the slider 33 with the guide groove 473 of the connecting component 47.

[0044] Specifically, the connecting assembly 47 includes a support member 471 fixed to the connecting frame 46 and a connector 472 disposed on the support member 471. A guide groove 473 is disposed on the connector 472 and extends vertically. The support member 471 can be an angle steel structure, fixed to the connecting frame 46 by welding or bolting. The connector 472 is a component mounted on the support member 471, also using an angle steel structure, with the guide groove 473 formed on the connector 472 and extending vertically. The slider 33 can be a cylindrical structure with a smooth surface to reduce friction with the guide groove 473. The guide groove 473 is an elongated groove whose width matches that of the slider 33 to ensure smooth sliding within it. In addition, the support member 471 has an adjustment groove whose length direction is consistent with the sliding direction of the powder dispensing mechanism 3. The connector 472 can be adjusted along the direction of the adjustment groove and locked with threaded fasteners. This allows the position of the connector 472 to be adjusted according to actual needs, thereby changing the movement trajectory of the powder dispensing mechanism 3.

[0045] In this embodiment, an eccentric wheel 43 is rotatably connected to a transmission base 41, and a connecting rod 42 is provided between the eccentric shaft of the eccentric wheel 43 and the swing arm. The transmission base 41 is a fixed component used to support the rotation of the eccentric wheel 43. The eccentric wheel 43 is a circular wheel, but its center does not coincide with the axis of rotation of the eccentric wheel 43, forming an eccentric structure. The connecting rod 42 is a rod-shaped component that connects the eccentric shaft of the eccentric wheel 43 and the swing arm assembly 44. The two ends of the connecting rod 42 are fixedly connected to the eccentric shaft of the eccentric wheel 43 and the end of the transmission arm 442 of the swing arm assembly 44 through spherical bearings or pins to achieve flexible transmission.

[0046] In this embodiment, the transmission assembly 45 is linked between the rotation shaft of the eccentric wheel 43 and the central shaft 12 of the drum 1. The transmission assembly 45 includes a first synchronous roller 453, a second synchronous roller 454, a synchronous belt, a driving gear 451, and a driven gear 452. The first synchronous roller 453, the second synchronous roller 454, and the central shaft 12 of the drum 1 are parallel to each other, and both the first synchronous roller 453 and the second synchronous roller 454 are rotatably connected to the transmission base 41. The driving gear 451 is coaxially fixedly connected to the central shaft 12 of the drum 1, the driven gear 452 is coaxially fixedly connected to the first synchronous roller 453, and the eccentric wheel 43 is coaxially fixedly connected to the second synchronous roller 454. The synchronous belt is sleeved between the first synchronous roller 453 and the second synchronous roller 454 and engages for transmission. The synchronous belt is located inside the transmission base 41 (not shown in the figure). The driving gear 451 and the driven gear 452 engage for transmission. When the drum 1 rotates, the driving gear 451 drives the driven gear 452 to rotate, the driven gear 452 drives the first synchronous roller 453 to rotate, and the first synchronous roller 453 drives the second synchronous roller 454 to rotate via a synchronous belt, thereby causing the eccentric wheel 43 to rotate. The rotation of the eccentric wheel 43 drives the swing arm assembly 44 to swing via the connecting rod 42, thereby causing the powder feeding mechanism 3 to move back and forth.

[0047] The implementation principle of this embodiment is as follows: the system establishes a linkage relationship between the powder dispensing mechanism 3 and the roller 1 through the linkage mechanism 4. During the rotation of the roller 1, the powder dispensing mechanism 3 can move synchronously with the mold cavity 11 on the surface of the roller 1, achieving precise powder dispensing. This method overcomes the problem that traditional fixed powder dispensing devices cannot adapt to the high-speed rotation of the roller 1, improves the accuracy of powder dispensing, reduces powder waste, and also improves production efficiency. Moreover, the coordinated work of each component makes the operation of the entire system more stable and reliable, representing a significant improvement and enhancement compared to existing technologies.

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

Claims

1. A mechanical following powder feeding system for a rotating drum device, characterized in that: The system includes a powder feeding mechanism (3) and a linkage mechanism (4). The powder feeding mechanism (3) is positioned above the roller (1) and slides along the tangential direction of the roller (1)'s rotation, and is used to feed powder into the mold cavity (11) on the surface of the roller (1). The linkage mechanism (4) forms a linkage relationship between the powder feeding mechanism (3) and the roller (1). During the continuous rotation of the roller (1), the powder feeding mechanism (3) moves back and forth along the tangential direction of the roller (1)'s rotation under the linkage action of the linkage mechanism (4). The powder feeding mechanism (3) moves back and forth along its path. The two endpoints of the path are the powder feeding start point and the powder feeding end point, respectively. The powder feeding mechanism (3) starts feeding powder at the powder feeding start point. Under the linkage of the linkage mechanism (4), the powder feeding mechanism (3) moves forward synchronously with the mold cavity (11) to be filled on the surface of the roller (1). The powder feeding mechanism (3) continuously feeds powder into the mold cavity (11) to be filled during the forward movement. The powder feeding mechanism (3) stops feeding powder at the powder feeding end point.

2. The mechanical following powder feeding system for a rotating drum device according to claim 1, characterized in that: The linkage mechanism includes: A horizontal guide assembly (2) is located above the roller (1). The powder feeding mechanism (3) is horizontally slidably connected to the horizontal guide assembly (2). Under the guidance of the horizontal guide assembly (2), the powder feeding mechanism (3) can move back and forth along the tangential direction of the rotation of the roller (1). A swing arm assembly (44) is rotatably connected to the central axis (12) of the roller (1), with one end of the swing arm assembly (44) extending above the roller (1); A connecting component (47) is provided at the end of the swing arm assembly (44), and the connecting component (47) is provided with a guide groove (473). The powder feeding mechanism (3) is provided with a slider (33), and the slider (33) is slidably connected to the guide groove (473). A transmission seat (41) is rotatably connected to an eccentric wheel (43), and a connecting rod (42) is provided between the eccentric shaft of the eccentric wheel (43) and the swing arm assembly (44). The transmission assembly (45) is linked between the rotation shaft of the eccentric wheel (43) and the central shaft (12) of the drum (1); During the continuous rotation of the drum (1), the eccentric wheel (43) rotates continuously following the central axis (12) of the drum (1) under the transmission cooperation of the transmission assembly (45). The swing arm assembly (44) swings back and forth under the driving action of the eccentric wheel (43) and the linkage action of the connecting rod (42). The powder feeding mechanism (3) slides horizontally back and forth under the linkage action of the connecting assembly (47) and the guiding action of the horizontal guide assembly (2).

3. The mechanical following powder feeding system for a rotating drum device according to claim 2, characterized in that: The horizontal guide assembly (2) includes a mounting base (21) and guide rods (22) symmetrically arranged on both sides of the powder feeding mechanism (3). The guide rods (22) are horizontally slidably connected to the mounting base (21).

4. The mechanical following powder feeding system for a rotating drum device according to claim 2, characterized in that: The swing arm assembly (44) includes a working arm (441) and a transmission arm (442) that are perpendicular to each other. The connection between the working arm (441) and the transmission arm (442) is connected to the central axis (12) of the drum (1) by a bearing. A connecting frame (46) is provided at the end of the working arm (441) away from the central axis (12) of the drum (1), and the connecting assembly (47) is provided at the connecting frame (46). The end of the transmission arm (442) away from the central axis (12) of the drum (1) is fixedly connected to the connecting rod (42).

5. The mechanical following powder feeding system for a rotating drum device according to claim 4, characterized in that: The connecting frame (46) includes a horizontal rod (461) and a vertical rod (462) that are perpendicular to each other. The vertical rod (462) is rotatably connected to the central axis (12) of the drum (1), and the vertical rod (462) and the working arm (441) are symmetrically distributed on both sides of the drum (1). The two ends of the horizontal rod (461) are fixedly connected to the upper end of the vertical rod (462) and the upper end of the working arm (441), respectively. The connecting frame (46) swings synchronously with the working arm (441).

6. The mechanical following powder feeding system for a rotating drum device according to claim 4, characterized in that: The connecting assembly (47) includes a support (471) fixed at the connecting frame (46) and a connector (472) disposed at the support (471), and the guide groove (473) is disposed at the connector (472) and extends vertically.

7. The mechanical following powder feeding system for a rotating drum device according to claim 6, characterized in that: The support member (471) has an adjustment groove. The length direction of the adjustment groove is consistent with the sliding direction of the powder feeding mechanism (3). The connecting member (472) can be adjusted along the direction of the adjustment groove and locked by threaded fasteners.

8. The mechanical following powder feeding system for a rotating drum device according to claim 2, characterized in that: The transmission assembly (45) includes a first synchronous roller (453), a second synchronous roller (454), a synchronous belt, a driving gear (451), and a driven gear (452). The driving gear (451) is coaxially fixedly connected to the central shaft (12) of the roller (1). The driven gear (452) is coaxially fixedly connected to the first synchronous roller (453). The eccentric wheel (43) is coaxially fixedly connected to the second synchronous roller (454). The synchronous belt is sleeved between the first synchronous roller (453) and the second synchronous roller (454) and meshes for transmission. The driving gear (451) and the driven gear (452) mesh for transmission.

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