Multifunctional blanking device

Abstract

The utility model provides a multifunctional blanking device, and belongs to the technical field of blanking devices. The multifunctional discharger comprises a protective shell, a feeding device and a discharging device, wherein the protective shell is of a hollow structure with an upper opening and a lower opening; the inserting plate is installed at the upper opening end of the protective shell in a sliding mode and used for moving to open and close the upper opening end; the rotating wheel is installed in the protective shell and used for being in driving connection with a rotation driving structure, a plurality of containing grooves are distributed in the rotating wheel in the axial direction, and the rotating wheel is located below the inserting plate; and the discharging structure is mounted at the lower opening end of the protective shell. The multifunctional blanking device can be suitable for blanking of different materials, can be completed without manual debugging, is easy and convenient to operate, is suitable for the material blanking process of automatic operation, can effectively improve the blanking effect, meanwhile, can adjust the blanking speed of the materials and guide the materials, effectively improves the blanking precision and further improves the blanking effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of feeding devices, specifically relating to a multi-functional feeder. Background Technology

[0002] With the development of automation technology, the equipment used for material feeding, such as fertilizer application or seed sowing, has gradually become automated. Automated material feeding equipment enables large-scale automatic feeding processes, achieving simultaneous feeding of large quantities of materials and significantly improving material feeding efficiency.

[0003] However, as can be seen from the Chinese utility model patent application number "202420973762.9", the existing feeding device has a relatively complex structure and is cumbersome to operate when fertilizing or sowing. It requires manual adjustment to control the feeding accuracy, and the accuracy of feeding depends heavily on human experience, which can have an adverse effect on precise automated operations. Utility Model Content

[0004] The technical problem to be solved by this utility model is how to improve the feeding effect. In view of the shortcomings of the existing technology, a multi-functional feeder is provided.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides a multifunctional feeder, comprising: a protective shell, the protective shell being a hollow structure with openings at the top and bottom; an insert plate, the insert plate being slidably mounted at the upper opening end of the protective shell and used to move to open and close the upper opening end; a rotating wheel, the rotating wheel being mounted inside the protective shell and used to drive a rotary drive structure, the rotating wheel having multiple receiving grooves distributed axially, the rotating wheel being located below the insert plate; and a feeding structure, the feeding structure being mounted on the lower opening end of the protective shell.

[0007] Compared to existing technologies, the advantages of this utility model include: A multi-functional feeder is composed of a protective shell, an insert plate, a rotating wheel, and a feeding structure. The protective shell is a hollow structure with openings at the top and bottom, while the rotating wheel is installed inside the protective shell, ensuring its safety and stability during operation. Multiple receiving slots are distributed axially on the rotating wheel. When materials such as fertilizer or seeds are placed above the protective shell, they pass through the upper opening of the protective shell and fall into the receiving slots of the rotating wheel. The rotating wheel is driven to rotate axially via a rotation drive structure. The multiple receiving slots then sequentially move to the upper part of the protective shell to receive the material, and then move to the lower part of the protective shell to pour out the material, allowing the material to be... The material falls through the lower opening of the protective shell, completing the material unloading process without manual adjustment. This simple and convenient operation is suitable for automated material unloading processes, effectively improving unloading efficiency. Furthermore, an insert plate can be inserted into the protective shell and cover its upper opening. By inserting or removing the insert plate, the upper opening of the protective shell can be opened or its opening size adjusted, further regulating the material's falling speed and improving unloading accuracy. Correspondingly, the unloading structure is installed on the lower opening of the protective shell. The unloading structure can be aligned with the desired unloading position and guide the material, achieving precise unloading and further enhancing the unloading effect.

[0008] Optionally, there are multiple rotating wheels, which are distributed sequentially along the axial direction; there are multiple insert plates, which are positioned one-to-one above the multiple rotating wheels; and there are multiple feeding structures, which are positioned one-to-one below the multiple rotating wheels.

[0009] Optionally, along the arrangement direction of the plurality of said rollers, the size of the receiving groove on the rollers gradually decreases.

[0010] Optionally, along the arrangement direction of the plurality of said rollers, the size of the insert plate gradually decreases and matches the axial dimension of the corresponding roller.

[0011] Optionally, the multi-functional feeder further includes a speed control structure, which is a flexible structure and located between the lower opening end of the rotating wheel and the protective shell. The speed control structure is in clearance fit with the wheel surface of the rotating wheel.

[0012] Optionally, the speed control structure includes an arc-shaped plate and a rotating shaft. The rotating shaft is installed inside the protective shell. One end of the arc-shaped plate is rotatably connected to the rotating shaft, and the other end of the arc-shaped plate extends upward along the wheel surface of the rotating wheel and is used to swing up and down around the rotating shaft; or, the speed control structure is a brush.

[0013] Optionally, the sidewall of the protective shell is recessed inward to form a support wall, which extends and bends along the wheel surface of the wheel and is in clearance fit with the wheel surface of the wheel.

[0014] Optionally, the upper opening end edge is recessed inward along the side wall to form a guide wall, the guide wall extends downward at an angle from the outside to the inside, and the lower end of the guide wall is flush with the upper end of the wheel.

[0015] Optionally, the feeding structure includes a feeding shell, which is a hollow structure with openings at the top and bottom. The upper end of the feeding shell is detachably connected to the lower end of the protective shell, and the sidewall of the feeding shell extends downwards from the outside to the inside.

[0016] Optionally, the feeding structure further includes a feeding cylinder, which is connected to the lower end of the feeding shell and is used to communicate with the receiving structure. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] Figure 1 : A schematic diagram of the structure of the multifunctional feeder in one embodiment of this utility model;

[0019] Figure 2 : Figure 1 A schematic diagram of the cross-sectional structure from view A shown in the figure;

[0020] Figure 3 : An exploded view of a multifunctional feeder in one embodiment of this utility model;

[0021] Figure 4 : A schematic diagram of the structure of the wheel in another embodiment of this utility model;

[0022] Figure 5 : A schematic diagram of the structure of the wheel in another embodiment of this utility model;

[0023] Figure 6 : A schematic diagram of the feeding structure in another embodiment of this utility model;

[0024] Among them, 1-protective shell, 11-support wall, 12-guide wall, 2-insertion plate, 3-rotor, 31-accommodating groove, 4-feeding structure, 41-feeding shell, 42-feeding cylinder, 5-speed control structure, 51-arc plate, 52-rotating shaft. Detailed Implementation

[0025] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0026] It should be noted that the Z-axis in the attached figures represents the vertical direction, i.e., the up-down position, with the positive direction of the Z-axis representing upward and the negative direction representing downward; the Y-axis in the attached figures represents the horizontal direction and is designated as the front-back position, with the positive direction of the Y-axis representing the front and the negative direction representing the back; the X-axis in the attached figures represents the left-right position, with the positive direction of the X-axis representing the right and the negative direction representing the left. It should also be noted that the aforementioned representations of the Z, Y, and X axes are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0028] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0029] An embodiment of this utility model provides a multifunctional feeder, comprising: a protective shell 1, which is a hollow structure with openings at the top and bottom; an insert plate 2, which is slidably installed at the upper opening end of the protective shell 1 and is used to move to open and close the upper opening end; a rotating wheel 3, which is installed inside the protective shell 1 and is used to drive a rotary drive structure, and the rotating wheel 3 has multiple receiving grooves 31 distributed axially, and the rotating wheel 3 is located below the insert plate 2; and a feeding structure 4, which is installed at the lower opening end of the protective shell 1.

[0030] Specifically, the rotary drive structure is a rotary rod driven by a rotary motor or a servo motor. The rotating wheel 3 can be mounted on the rotary rod, and the rotation of the rotary rod drives the rotation of the rotating wheel 3.

[0031] In this embodiment, as Figure 1 and Figure 2 As shown, a multi-functional feeder is composed of a protective shell 1, an insert plate 2, a rotating wheel 3, and a feeding structure 4. The protective shell 1 is a hollow structure with openings at the top and bottom. The rotating wheel 3 is installed inside the protective shell 1 to ensure its safety and stability during operation. Multiple receiving slots 31 are distributed axially on the rotating wheel 3. When materials such as fertilizer or seeds are placed above the protective shell 1, the materials pass through the upper opening of the protective shell 1 and fall into the receiving slots 31 of the rotating wheel 3. The rotating wheel 3 is driven to rotate axially via a rotation drive structure. The multiple receiving slots 31 then move sequentially to the upper end inside the protective shell 1 to receive the materials, and then move to the lower end inside the protective shell 1 to pour out the materials, allowing them to pass through the protective shell 1. The lower opening of the protective shell 1 descends, completing the material unloading process without manual adjustment. This simple and convenient operation is suitable for automated material unloading processes, effectively improving the unloading efficiency. Furthermore, the insert plate 2 can be inserted into the protective shell 1 and cover its upper opening. By inserting or removing the insert plate 2, the upper opening of the protective shell 1 can be opened or its opening size adjusted, further regulating the material unloading speed and improving accuracy. Correspondingly, the unloading structure 4 is installed on the lower opening of the protective shell 1. The unloading structure 4 can be aligned with the desired unloading position and guide the material, achieving precise unloading and further enhancing the unloading effect.

[0032] It should be noted that, as Figure 1 and Figure 3 As shown, a burr is provided on the side wall of the upper opening end of the protective shell 1. The burr has a connecting hole, which can be used to connect to the output end of the material output structure, facilitating the entry of material into the protective shell 1. An insertion hole is provided on the side wall of the protective shell 1. One end of the insertion plate 2 can be inserted into the insertion hole and cover the upper opening end of the protective shell 1. A protrusion is provided on one end of the insertion plate 2. When the insertion plate 2 is pulled out, the protrusion can abut against the edge of the insertion hole, preventing the insertion plate 2 from being pulled out of the protective shell 1. The left and right side walls of the protective shell 1 have coaxial corresponding mounting holes. The two sides of the rotating wheel 3 have snap-fit ​​pins, which can be snapped into the mounting holes and connected to the rotary drive structure to ensure the stable drive of the rotating wheel 3 by the rotary drive structure.

[0033] Optionally, there are multiple rotating wheels 3, which are distributed sequentially along the axial direction; there are multiple insert plates 2, which are positioned one-to-one above the multiple rotating wheels 3; and there are multiple feeding structures 4, which are positioned one-to-one below the multiple rotating wheels 3.

[0034] In this optional embodiment, to improve the range of material feeding and to facilitate large-scale feeding, such as... Figure 1 , Figure 2 and Figure 3 As shown, there are multiple rotating wheels 3, which are distributed sequentially along the axial direction. This arrangement allows for the synchronous feeding of materials through the synchronous rotation of multiple rotating wheels 3, increasing the feeding volume and coverage area, which is suitable for large-scale operations. In addition, multiple rotating wheels 3 can accommodate different materials, enabling the synchronous feeding of multiple materials. Correspondingly, there are multiple insert plates 2 and multiple feeding structures 4, which are respectively placed above and below multiple rotating wheels 3, thereby enabling the synchronous movement of materials into and out of the protective shell 1.

[0035] It should be noted that, as Figure 3 As shown, multiple rotating wheels 3 are coaxially connected, and a partition is provided between two adjacent rotating wheels 3 to ensure that the materials in adjacent rotating wheels 3 do not affect each other.

[0036] Optionally, along the arrangement direction of the plurality of rotating wheels 3, the size of the receiving groove 31 on the rotating wheel 3 gradually decreases.

[0037] In this optional embodiment, in order to achieve differential feeding of materials or maintain different feeding speeds of materials, such as Figure 3 As shown, along the arrangement direction of the multiple rotating wheels 3, the size of the receiving groove 31 on the rotating wheel 3 gradually decreases. With this setting, the size of the receiving groove 31 of adjacent rotating wheels 3 is different, so the amount of material contained is different. Therefore, the amount of material falling from the feeding structure 4 is also different. Thus, the material feeding speed can be adjusted by pulling out different insert plates 2, or multiple insert plates 2 can be pulled out to achieve differential feeding of materials.

[0038] It should be noted that in other embodiments of this utility model, such as Figure 5 As shown, along the arrangement direction of the plurality of rotating wheels 3, the size of the receiving groove 31 on the rotating wheel 3 can gradually increase; of course, in other embodiments of this utility model, such as Figure 6 As shown, the arrangement density of the receiving grooves 31 on the same rotating wheel 3 can also be adjusted accordingly.

[0039] Optionally, along the arrangement direction of the plurality of rotating wheels 3, the size of the insert plate 2 gradually decreases and matches the axial dimension of the corresponding rotating wheel 3.

[0040] In this optional embodiment, in order to ensure smooth material feeding, such as Figure 1 , Figure 2 and Figure 3As shown, along the arrangement direction of the multiple rotating wheels 3, the size of the insert plate 2 gradually decreases and matches the axial dimension of the corresponding rotating wheel 3. With this setting, when different insert plates 2 are pulled out, the amount of material falling into the protective shell 1 matches the size of the receiving groove 31 of the rotating wheel 3. This avoids the problem of too much material falling in causing difficulty in rotating the rotating wheel 3, or too little material falling in causing the final material discharge amount to not meet the requirements, thereby effectively improving the material discharge effect.

[0041] Optionally, the multi-functional feeder also includes a speed control structure 5, which is a flexible structure and is located between the lower opening end of the rotating wheel 3 and the protective shell 1. The speed control structure 5 is in clearance fit with the wheel surface of the rotating wheel 3.

[0042] It should be noted that the speed control structure 5 can be a flexible plate, a swing plate, or a flexible rod, etc.

[0043] In this optional embodiment, in order to ensure uniform material feeding, such as Figure 2 As shown, the multi-functional feeder is also equipped with a speed control structure 5. The speed control structure 5 is a flexible structure and is located between the lower opening end of the rotating wheel 3 and the protective shell 1. At the same time, the speed control structure 5 and the wheel surface of the rotating wheel 3 are fitted with a clearance. With this configuration, when the material moves to the bottom of the protective shell 1 as the rotating wheel 3 rotates, it falls into the gap between the rotating wheel 3 and the speed control structure 5. Under gravity, the material squeezes the speed control structure 5 to deform it. The deformation force generated by the deformation of the speed control structure 5 supports the material and eventually achieves parallelism. At this time, the material can fall evenly from the gap between the speed control structure 5 and the rotating wheel 3 into the lower opening end of the protective shell 1, and finally completes the feeding through the feeding structure 4.

[0044] Optionally, the speed control structure 5 includes an arc-shaped plate 51 and a rotating shaft 52. The rotating shaft 52 is installed inside the protective shell 1. One end of the arc-shaped plate 51 is rotatably connected to the rotating shaft 52, and the other end of the arc-shaped plate 51 extends upward along the wheel surface of the rotating wheel 3 and is used to swing up and down around the rotating shaft 52; or, the speed control structure 5 is a brush.

[0045] Specifically, the curvature of the arc plate 51 is the same as that of the rotating wheel 3.

[0046] In this optional embodiment, such as Figure 3As shown, a speed control structure 5 is formed by an arc-shaped plate 51 and a rotating shaft 52. The rotating shaft 52 is installed inside the protective shell 1, and one end of the arc-shaped plate 51 is rotatably connected to the rotating shaft 52 to ensure the installation stability of the arc-shaped plate 51. On this basis, the other end of the arc-shaped plate 51 extends upward along the wheel surface of the rotating wheel 3, so that the other end of the arc-shaped plate 51 can swing up and down around the rotating shaft 52. When the material in the receiving groove 31 of the rotating wheel 3 falls onto the arc-shaped plate 51 as the rotating wheel 3 rotates, under the operation of gravity, the material squeezes the arc-shaped plate 51 to make it rotate. The arc-shaped plate 51 supports the material and eventually achieves parallelism. At this time, the material can fall evenly from the gap between the arc-shaped plate 51 and the rotating wheel 3 into the lower opening end of the protective shell 1, and finally completes the feeding through the feeding structure 4.

[0047] In other optional embodiments of this utility model, the speed control structure 5 can also be a brush.

[0048] Optionally, the sidewall of the protective shell 1 is recessed inward to form a support wall 11, which extends along the wheel surface of the rotating wheel 3 and is clearance-fitted with the wheel surface of the rotating wheel 3.

[0049] In this optional embodiment, in order to ensure the stability of the material during the rotation of the rotor 3, such as Figure 1 and Figure 2 As shown, the side wall of the protective shell 1 is recessed inward to form a support wall 11. The support wall 11 extends and bends along the wheel surface of the rotating wheel 3, so that it can cooperate with the wheel surface of the rotating wheel 3 to prevent the material from falling off if it does not move to the preset position with the rotating wheel 3, thus ensuring the stable transfer of the material. On this basis, the wheel surface of the rotating wheel 3 and the support wall 11 are fitted with a clearance to ensure the smooth rotation of the rotating wheel 3.

[0050] It should be noted that, in this optional embodiment, as Figure 2 As shown, the support wall 11 extends and curves along the upper half of the arc-shaped wheel surface of the rotating wheel 3.

[0051] Optionally, the upper opening end edge is recessed inward along the side wall to form a guide wall 12, the guide wall 12 extends downward from the outside to the inside, and the lower end of the guide wall 12 is flush with the upper end of the rotating wheel 3.

[0052] In this optional embodiment, to ensure that the material falls smoothly into the protective shell 1, such as Figure 1 and Figure 2 As shown, the upper opening edge of the protective shell 1 is recessed inward along the side wall to form a guide wall 12. The guide wall 12 extends downward at an angle from the outside to the inside. When the material falls at the upper opening of the protective shell 1, it can slide along the guide wall 12 under the action of gravity and finally fall into the protective shell 1. On this basis, the lower end of the guide wall 12 is flush with the upper end of the roller 3, which can ensure that the material can fall accurately into the receiving groove 31 of the roller 3, which facilitates the subsequent material feeding.

[0053] Optionally, the feeding structure 4 includes a feeding shell 41, which is a hollow structure with openings at the top and bottom. The upper end of the feeding shell 41 is detachably connected to the lower end of the protective shell 1, and the side wall of the feeding shell 41 extends downward from the outside to the inside.

[0054] In this optional embodiment, such as Figures 1 to 3 As shown, a discharge shell 41 is set as the discharge structure 4. The discharge shell 41 is a hollow structure with openings at the top and bottom. The upper end of the discharge shell 41 can be detachably connected to the lower end of the protective shell 1, so that the material can fall into the discharge shell 41 through the lower opening of the protective shell 1 and finally fall from the lower end of the discharge shell 41 to complete the discharge. On this basis, the side wall of the discharge shell 41 extends downward from the outside to the inside. With this setting, when the material falls on the side wall of the discharge shell 41, under the operation of gravity, the material can slide along the side wall of the discharge shell 41 and finally fall from the lower end of the discharge shell 41, ensuring smooth discharge.

[0055] It should be noted that, as Figure 3 As shown, the symmetrical side walls of the feed shell 41 are inclined, and the lower opening end of the feed shell 41 is located on the vertical axis of the feed shell 41; the upper end of the feed shell 41 is detachably connected to the lower opening end of the protective shell 1 by a snap fastener; in other optional embodiments of this utility model, such as Figure 4 As shown, the feed shell 41 may have only one inclined side wall, and correspondingly, the lower opening end of the feed shell 41 is located on one side of the vertical axis of the feed shell 41.

[0056] It should be noted that, as Figure 3 As shown, when there are multiple feeding structures 4, multiple feeding shells 41 are arranged side by side and integrally formed.

[0057] Optionally, the feeding structure 4 also includes a feeding cylinder 42, which is connected to the lower end of the feeding shell 41 and is used to connect with the receiving structure.

[0058] In this optional embodiment, to facilitate communication between the material and the receiving structure or receiving area, such as... Figure 3 As shown, the feeding structure 4 is also provided with a feeding cylinder 42, wherein the feeding cylinder 42 is connected to the lower end of the feeding shell 41, and the feeding cylinder 42 can be connected to the receiving structure. With this configuration, the material can be transferred from the feeding shell 41 to the feeding cylinder 42 to the receiving structure, ensuring stable and accurate feeding of the material.

[0059] It should be noted that, as Figure 3 As shown, depending on the object to be fed, some of the multiple feeding shells 41 can be connected to the feeding cylinder 42, while others can be disconnected from the feeding cylinder 42.

[0060] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-functional feeder, characterized in that, include: The protective shell (1) is a hollow structure with openings at the top and bottom; Insert plate (2), which is slidably mounted on the upper opening end of the protective shell (1) and is used to move to open and close the upper opening end; Rotary wheel (3), the rotary wheel (3) is installed inside the protective shell (1) and is used for driving connection with the rotary drive structure. The rotary wheel (3) has a plurality of receiving grooves (31) distributed around the axial direction. The rotary wheel (3) is located below the insert plate (2). The material feeding structure (4) is installed on the lower opening end of the protective shell (1).

2. The multifunctional feeder as described in claim 1, characterized in that, The rotating wheel (3) has multiple wheels, which are distributed sequentially along the axial direction. The insert plate (2) has multiple insert plates, which are placed one-to-one above the rotating wheel (3). The feeding structure (4) has multiple feeding structures, which are placed one-to-one below the rotating wheel (3).

3. The multifunctional feeder as described in claim 2, characterized in that, Along the arrangement direction of the plurality of said rotating wheels (3), the size of the receiving groove (31) on the rotating wheel (3) gradually decreases.

4. The multifunctional feeder as described in claim 2, characterized in that, Along the arrangement direction of the plurality of said rollers (3), the size of the insert plate (2) gradually decreases and matches the axial dimension of the corresponding roller (3).

5. The multifunctional feeder as described in any one of claims 1 to 4, characterized in that, It also includes a speed control structure (5), which is a flexible structure and is located between the lower opening end of the rotating wheel (3) and the protective shell (1). The speed control structure (5) is in clearance fit with the wheel surface of the rotating wheel (3).

6. The multifunctional feeder as described in claim 5, characterized in that, The speed control structure (5) includes an arc plate (51) and a rotating shaft (52). The rotating shaft (52) is installed inside the protective shell (1). One end of the arc plate (51) is rotatably connected to the rotating shaft (52). The other end of the arc plate (51) extends upward along the wheel surface of the rotating wheel (3) and is used to swing up and down around the rotating shaft (52). Alternatively, the speed control structure (5) is a brush.

7. The multifunctional feeder as described in any one of claims 1 to 4, characterized in that, The sidewall of the protective shell (1) is recessed inward to form a support wall (11), which extends along the wheel surface of the wheel (3) and is in clearance fit with the wheel surface of the wheel (3).

8. The multifunctional feeder as described in claim 7, characterized in that, The upper opening end edge is recessed inward to form a guide wall (12), the guide wall (12) extends downward from the outside to the inside, and the lower end of the guide wall (12) is flush with the upper end of the wheel (3).

9. The multifunctional feeder as described in any one of claims 1 to 4, characterized in that, The feeding structure (4) includes a feeding shell (41), which is a hollow structure with openings at the top and bottom. The upper end of the feeding shell (41) is detachably connected to the lower end of the protective shell (1). The side wall of the feeding shell (41) extends downward from the outside to the inside.

10. The multifunctional feeder as described in claim 9, characterized in that, The feeding structure (4) further includes a feeding cylinder (42), which is connected to the lower end of the feeding shell (41) and is used to connect with the receiving structure.

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