Knocking assembly and knocking device
By using multiple tapping blocks and driving components of different widths in the tapping component, the tapping block is quickly switched to meet different material processing needs, solving the problem of troublesome replacement of tapping blocks in the prior art and improving material processing efficiency.
Patent Information
- Application Number
- CN202422436547.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The existing tapping components have only one tapping block design, which makes it more troublesome to replace the tapping block and reduces material handling capacity and efficiency.
A tapping assembly is designed, including at least two tapping blocks and driving components of different widths. The driving assembly can selectively drive the tapping blocks to switch between different positions to meet the processing needs of different types of materials.
The material handling capacity of the knocking components has been expanded, and the efficiency and flexibility of material handling have been improved.
Smart Images
Figure CN223276373U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of equipment for finely processing particulate materials, and in particular to a striking assembly and a striking device. Background Art
[0002] The striking assembly utilizes striking blocks to crush and refine materials. Existing striking assemblies are designed with a single striking block, meaning they only have one detachable striking block. This makes it difficult to replace the striking block when the striking assembly's capacity for processing materials needs to be changed, reducing material processing capacity and efficiency. Utility Model Content
[0003] The present application discloses a striking assembly and a striking device, which can quickly switch striking blocks to adjust different material processing capabilities to adapt to different types of materials.
[0004] In order to achieve the above objectives, in a first aspect, the present application discloses a striking assembly, comprising:
[0005] bearing members;
[0006] at least two striking blocks, each having different widths in a first direction, and each of the striking blocks is used to strike a material; and
[0007] A driving assembly is arranged on the supporting member, the driving assembly is connected to the at least two striking blocks, and selectively drives one or more of the striking blocks to switch between the first position and the second position along the second direction, and the first direction and the second direction are perpendicular to each other.
[0008] In some embodiments, the carrier is provided with a receiving groove, and the receiving groove is used to receive the at least two knocking blocks in the first position.
[0009] In some embodiments, the number of the accommodating slots is at least two, and the at least two accommodating slots are used to accommodate the at least two knocking blocks in the first position in a one-to-one correspondence.
[0010] In some embodiments, it further includes at least two guide blocks, each of which is connected to the driving assembly, and each of which is connected to the at least two knocking blocks in a one-to-one correspondence; the supporting member is provided with at least two guide grooves, each of which extends along the second direction, and the at least two guide blocks are slidably arranged in the guide grooves in a one-to-one correspondence.
[0011] In some embodiments, the guide block and the knocking block have the same width in the first direction.
[0012] In some embodiments, the guide block includes a first sub-block and a second sub-block, and the first sub-block and the second sub-block are both connected to the corresponding knocking block; the guide groove includes a first sub-groove and a second sub-groove, and the first sub-groove and the second sub-groove are both opened on two surfaces of the carrier that are opposite to each other in the third direction, and the first sub-block is slidably disposed in the corresponding first sub-groove, and the second sub-block is slidably disposed in the corresponding second sub-groove;
[0013] The third direction is perpendicular to the first direction and perpendicular to the second direction.
[0014] In some embodiments, the number of the knocking blocks and the number of the guide blocks are both two, and the driving assembly drives the two knocking blocks to move in opposite directions through the guide blocks.
[0015] In some embodiments, the drive assembly includes:
[0016] Two screws with the same thread rotation direction, the two screws are respectively threadedly connected to the two guide blocks; and
[0017] A driving member is connected to the two screw rods, and the driving member drives one of the screw rods to rotate forward and the other screw rod to rotate reversely.
[0018] In some embodiments, the drive assembly further includes two gears meshing with each other, wherein one of the gears is connected to the drive member and sleeved on one of the screws, and the other gear is sleeved on the other screw.
[0019] In a second aspect, the present application further discloses a striking device, comprising:
[0020] frame;
[0021] A material tray, the material tray is rotatably mounted on the frame and is used to load materials;
[0022] As in the above-mentioned knocking assembly, the knocking assembly is spaced apart from the material tray, and the knocking block is used to knock the material; and
[0023] A lifting component is provided on the frame, and the lifting component is connected to the supporting member of the knocking component to drive the knocking component to approach or move away from the material tray.
[0024] This application provides a striking assembly and striking device, which, compared with the prior art, at least have the following features:
[0025] Beneficial effects:
[0026] A knocking assembly and a knocking device of the present application have at least two knocking blocks with different widths in the first direction. The driving assembly can drive different knocking blocks to switch to the second position to knock the material according to different material processing requirements, which can expand the material processing capacity range of the knocking assembly and thus improve the efficiency of the knocking assembly in knocking the material. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0028] The present application will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:
[0029] Figure 1 is a schematic structural diagram of a knocking assembly provided in an embodiment of the present application;
[0030] Figure 2 is an exploded view of the striking assembly provided in an embodiment of the present application;
[0031] Figure 3 It is a structural schematic diagram of the knocking device provided in an embodiment of the present application.
[0032] In the drawings, like reference numerals are used for like parts, but the drawings are not necessarily true to scale.
[0033] Reference numerals:
[0034] 1- Tap the component;
[0035] 11-carrying member; 111-accommodating groove; 112-guide groove; 1121-first sub-groove; 1122-second sub-groove;
[0036] 12-Knock Block;
[0037] 13-driving assembly; 131-screw; 132-driving member; 133-gear;
[0038] 14-guide block; 141-first sub-block; 142-second sub-block;
[0039] 2- striking device; 21- frame; 22- tray; 23- lifting assembly. DETAILED DESCRIPTION
[0040] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0041] In this application, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.
[0042] In addition, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may or may not be the same in type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.
[0043] The technical solution of the present application will be further described below with reference to specific embodiments and drawings.
[0044] See also Figure 1 In the first aspect, the present application discloses a knocking assembly 1, comprising a carrier 11, at least two knocking blocks 12 and a driving assembly 13. At least two knocking blocks 12 are in a first direction (such as Figure 1 The widths of the knocking blocks 12 are different in the second direction (as shown in the X direction). The knocking blocks 12 are used to knock the material. The driving component 13 is provided on the carrier 11. The driving component 13 connects at least two knocking blocks 12 and selectively drives one or more of the knocking blocks 12 to move along the second direction (as shown in the X direction). Figure 1 The first position and the second position are switched between the first position and the second position, and the first direction and the second direction are perpendicular to each other.
[0045] In the embodiment of the present application, the knocking block 12 knocks the material when it switches to the second position. It can be understood that the driving component 13 can drive the knocking piece to switch from the first position to the second position to knock the material, and can also drive the knocking piece to switch from the middle position between the first position and the second position to the second position to knock the material.
[0046] It can be understood that the widths of at least two striking blocks 12 in the first direction are different means that the width of each striking block 12 in the first direction is different.
[0047] In this embodiment, at least two knocking blocks 12 have different widths in the first direction, thereby having different material processing capacities. For example, when the width of the knocking block 12 in the first direction is 4 mm, the corresponding material processing capacity is approximately 1.5 kg / h, when the width of the knocking block 12 in the first direction is 8 mm, the corresponding material processing capacity is approximately 2.0 kg / h, and when the width of the knocking block 12 in the first direction is 12 mm, the corresponding material processing capacity is approximately 2.5 kg / h. Of course, the width of the knocking block 12 in the first direction can be less than 4 mm, or between 4 mm and 8 mm, or between 8 mm and 12 mm, or greater than 12 mm, and this is not limited here.
[0048] The driving component 13 can drive one or more of the knocking blocks 12 to switch to the second position to knock the material according to the type of material or processing requirements. For example, when the material processing requirement is 1.5kg / h, the driving component 13 can drive the knocking block 12 with a width of 4mm in the first direction to switch to the second position to knock the material; when the material processing requirement is 2.0kg / h, the driving component 13 can drive the knocking block 12 with a width of 8mm in the first direction to switch to the second position to knock the material; when the material processing requirement is 2.5kg / h, the driving component 13 can drive the knocking block 12 with a width of 12mm in the first direction to switch to the second position to knock the material; when the material processing requirement is 3.0kg / h, the driving component 13 can simultaneously drive the knocking block 12 with a width of 4m in the first direction to switch to the second position to knock the material. m's knocking block 12 and the knocking block 12 with a width of 12 mm in the first direction are switched to the second position to knock the material; when the material processing demand is 3.5 kg / h, the driving component 13 can simultaneously drive the knocking block 12 with a width of 8 mm in the first direction and the knocking block 12 with a width of 12 mm in the first direction to switch to the second position to knock the material; when the material processing demand is 4.0 kg / h, the driving component 13 can simultaneously drive the knocking block 12 with a width of 4 mm in the first direction, the knocking block 12 with a width of 8 mm in the first direction and the knocking block 12 with a width of 12 mm in the first direction to switch to the second position to knock the material.
[0049] In this embodiment, at least two knocking blocks 12 have different widths in the first direction. The driving component 13 can drive different knocking blocks 12 to switch to the second position to knock the material according to different material processing requirements, which can expand the material processing capacity range of the knocking component 1 and thus improve the efficiency of the knocking component 1 in knocking the material.
[0050] See also Figure 2 In some embodiments, the carrier 11 is provided with a receiving groove 111, and the receiving groove 111 is used to receive at least two striking blocks 12 in the first position.
[0051] The accommodating groove 111 can be used to accommodate the striking block 12 in the first position, and can protect the striking block 12 that is not driven by the driving component 13, thereby effectively extending the service life of the striking block 12.
[0052] In some other embodiments, the striking block 12 in the first position may be located in the second direction of the supporting member 11 .
[0053] In some embodiments, the number of the accommodating slots 111 is at least two, and the at least two accommodating slots 111 are used to accommodate at least two striking blocks 12 in the first position in a one-to-one correspondence.
[0054] In this embodiment, at least two receiving slots 111 correspond to each other and accommodate at least two striking blocks 12 in the first position. In other words, each striking block 12 in the first position is accommodated in a corresponding receiving slot 111, ensuring that each striking block 12 in the first position has its own independent accommodation space, thereby preventing multiple striking blocks 12 in the first position from interfering with or colliding with each other and being affected. In addition, the process of driving one or more striking blocks 12 to switch to the second position by the driving component 13 can also be prevented from affecting other striking blocks 12 in the first position.
[0055] In some other embodiments, the number of the accommodating slot 111 may be one, and one accommodating slot 111 is used to accommodate all the striking blocks 12 .
[0056] Please also refer to Figure 1 and Figure 2 In some embodiments, the knocking assembly 1 further includes at least two guide blocks 14, at least two guide blocks 14 are connected to the driving assembly 13, and at least two guide blocks 14 are connected to at least two knocking blocks 12 in a one-to-one correspondence; the supporting member 11 is provided with at least two guide grooves 112, at least two guide grooves 112 extend along the second direction, and at least two guide blocks 14 are slidably arranged in the guide grooves 112 in a one-to-one correspondence.
[0057] In this embodiment, the supporting member 11 is provided with at least two guide grooves 112, and at least two guide blocks 14 connected to the at least two knocking blocks 12 are slidably provided in the at least two guide grooves 112 in a one-to-one manner. In other words, the number of guide grooves 112, knocking blocks 12 and guide blocks 14 is equal and corresponds one to one, and each guide block 14 is slidably provided in the corresponding guide groove 112.
[0058] It is understood that when the guide blocks 14 of this embodiment are disposed within the corresponding guide slots 112, the guide blocks 14 substantially conform to the inner walls of the guide slots 112, thereby allowing the guide blocks 14 to move in the second direction while restricting movement in other directions. By restricting the movement direction of the guide blocks 14 via the guide slots 112, precise guidance of the striking blocks 12 during movement is ensured, preventing the striking blocks 12 from shaking when switching between the first and second positions, thereby ensuring that each striking block 12 is precisely controlled.
[0059] In some other embodiments, one guide block 14 may also be connected to multiple striking blocks 12 .
[0060] In some embodiments, the guide block 14 and the knock block 12 have the same width in the first direction.
[0061] In this embodiment, the width of the guide block 14 and the knocking block 12 in the first direction refers to the thickness of the guide block 14 and the knocking block 12, wherein the width of the guide block 14 and the knocking block 12 in the first direction is the same and the surfaces of the guide block 14 and the knocking block 12 opposite to each other in the first direction are flush, so that the guide block 14 and the knocking block 12 are relatively smooth at the connection and there is no protruding structure similar to a step, preventing the existence of a stress concentration area at the connection position of the guide block 14 and the knocking block 12, avoiding stress concentration at the connection position of the guide block 14 and the knocking block 12, and helping to improve the strength and durability of the guide block 14 and the knocking block 12.
[0062] In some other embodiments, the guide block 14 and the striking block 12 have different widths in the first direction, and a smooth curve transition can be used at the connection between the guide block 14 and the striking block 12 .
[0063] Please continue reading Figure 1 and Figure 2 In some embodiments, the guide block 14 includes a first sub-block 141 and a second sub-block 142, and the first sub-block 141 and the second sub-block 142 are both connected to the corresponding knocking block 12; the guide groove 112 includes a first sub-groove 1121 and a second sub-groove 1122, and the first sub-groove 1121 and the second sub-groove 1122 are both opened in the third direction (such as Figure 1 On two opposite surfaces (shown in the Y direction), the first sub-block 141 is slidably disposed in the corresponding first sub-groove 1121, and the second sub-block 142 is slidably disposed in the corresponding second sub-groove 1122. The third direction is perpendicular to the first direction and perpendicular to the second direction.
[0064] Among them, the first sub-block 141 is slidably set in the corresponding first sub-groove 1121, which means that the first sub-block 141 of the guide block 14 is set in the first sub-groove 1121 of the corresponding guide groove 112; the second sub-block 142 is slidably set in the corresponding second sub-groove 1122, which means that the second sub-block 142 of the guide block 14 is slidably set in the second sub-groove 1122 of the corresponding guide groove 112.
[0065] In this embodiment, the first sub-groove 1121 and the second sub-groove 1122 are respectively provided on the two opposite surfaces of the supporting member 11 in the third direction, and the first sub-block 141 and the second sub-block 142 which are simultaneously connected to the knocking block 12 are slidably arranged in the first sub-groove 1121 and the second sub-groove 1122 respectively, which can prevent the first sub-block 141 and the second sub-block 142 from shaking during the switching process between the first position and the second position, thereby avoiding the knocking block 12 from shaking during the switching process between the first position and the second position.
[0066] In addition, the first sub-block 141 and the second sub-block 142 are spaced apart in the third direction, and the first sub-block 141 and the second sub-block 142 are both connected to the knocking block 12, which can enhance the connection stability between the guide block 14 and the knocking block 12. At the same time, the first sub-block 141 and the first sub-block 141 are spaced apart in the third direction, which can balance the impact force received by the knocking block 12 in the third direction when the knocking block 12 knocks the material, thereby preventing the knocking block 12 from breaking at the connection between the knocking block 12 and the guide block 14 due to the uneven impact force received.
[0067] In some other embodiments, the guide groove 112 may also be provided at the middle position of the carrier 11 in the third direction, and the guide groove 112 passes through two opposite surfaces of the carrier 11 in the second direction.
[0068] See also Figure 2 In some embodiments, there are two knocking blocks 12 and two guide blocks 14 , and the driving assembly 13 drives the two knocking blocks 12 to move in opposite directions through the guide blocks 14 .
[0069] In this embodiment, the two striking blocks 12 have different widths in the first direction, and therefore have different material processing capacities. For example, one striking block 12 has a width of 4 mm in the first direction, corresponding to a material processing capacity of approximately 1.5 kg / h, while the other striking block 12 has a width of 8 mm in the first direction, corresponding to a material processing capacity of approximately 2.0 kg / h.
[0070] The working principle of this embodiment is:
[0071] Before the tapping operation is performed, the tapping block 12 with a width of 4 mm in the first direction may be in the first position, and the tapping block 12 with a width of 8 mm in the first direction may be in the second position. Alternatively, the tapping block 12 with a width of 4 mm in the first direction and the tapping block 12 with a width of 8 mm in the first direction may both be in the middle position, wherein the middle position is between the first position and the second position.
[0072] When the processing demand of the first material is approximately 1.5 kg / h, the driving component 13 drives the knocking block 12 with a width of 4 mm in the first direction to switch from the first position or the middle position to the second position to knock the first material. At this time, the driving component 13 drives the knocking block 12 with a width of 8 mm in the first direction to switch from the second position or the middle position to the first position.
[0073] Similarly, when the first material is processed and the second material is processed, and the processing demand for the second material is approximately 2.0 kg / h, the drive assembly 13 drives the knocking block 12 with a width of 8 mm in the first direction to switch from the first position or the middle position to the second position to knock the second material. At this time, the drive assembly 13 drives the knocking block 12 with a width of 4 mm in the first direction to switch from the second position or the middle position to the first position.
[0074] In some other embodiments, the two knocking blocks 12 are configured so that when one knocking block 12 switches from the first position to the second position, the other knocking block 12 can switch from the first position to the second position or from the second position to the first position.
[0075] Please continue reading Figure 2 In some embodiments, the drive assembly 13 includes two screws 131 with the same thread rotation direction and a drive member 132. The two screws 131 are respectively threadedly connected to the two guide blocks 14. The drive member 132 connects the two screws 131, and when the drive member 132 drives one screw 131 to rotate forward, it drives the other screw 131 to rotate counterclockwise.
[0076] In addition, in this embodiment, the guide block 14 is provided with a threaded hole extending in the second direction on the surface facing away from the striking block 12, and the screw 131 is threadedly engaged with the threaded hole. It is understandable that the driving member 132 only drives the screw 131 to rotate and does not drive the screw 131 to move in the second direction.
[0077] In this embodiment, the driving member 132 can drive one of the screw rods 131 to rotate forward while driving the other screw rod 131 to rotate reversely, so that the two guide blocks 14 can respectively drive the two knocking blocks 12 to move in the opposite direction along the second direction.
[0078] In some other embodiments, the thread rotation directions of the two screw rods 131 may be opposite, and the driving member 132 drives the two screw rods 131 to rotate forward or reverse simultaneously.
[0079] Please continue reading Figure 2 In some embodiments, the driving assembly 13 further includes two meshing gears 133 , wherein one gear 133 is connected to the driving member 132 and is sleeved on one of the screw rods 131 , and the other gear 133 is sleeved on the other screw rod 131 .
[0080] It can be understood that the gear 133 connected to the driving member 132 is a driving gear 133 , and the other gear 133 is a driven gear 133 .
[0081] The two gears 133 that engage with each other may be spur gears 133 or helical gears 133 , which are not limited here, and the only requirement is that the rotation axes of the two gears 133 are parallel to each other.
[0082] In this embodiment, the driving member 132 drives the two meshing gears 133 to rotate in the opposite direction through the driving member 132, which can drive the two screws 131 with the same thread rotation direction to rotate in the opposite direction, so as to drive the two guide blocks 14 to move in the opposite direction along the second direction, thereby driving the two knocking blocks 12 to move in the opposite direction along the second direction.
[0083] In some other embodiments, the driving assembly 13 may include a driving gear 133 , a first driven gear 133 , and a second driven gear 133 that are meshed in sequence, wherein the driving gear 133 and the second driven gear 133 are respectively sleeved on two screws 131 with opposite thread rotation directions.
[0084] See also Figure 3 Secondly, embodiments of the present application further disclose a striking device 2, comprising a frame 21, a material tray 22, the striking assembly 1 described above, and a lifting assembly 23. The material tray 22 is rotatably mounted on the frame 21 and is used to load material. The striking assembly 1 is spaced apart from the material tray 22, and the striking block 12 is used to strike the material. The lifting assembly 23 is mounted on the frame 21 and is connected to the supporting member 11 of the striking assembly 1 to drive the striking assembly 1 toward or away from the material tray 22.
[0085] In this embodiment, the material tray 22 can be placed horizontally.
[0086] The lifting assembly 23 first drives the knocking assembly 1 away from the material tray 22, thereby increasing the space between the knocking assembly 1 and the material tray 22 to facilitate the placement of materials into the material tray 22.
[0087] After the material to be struck is placed on the material tray 22 , the lifting component 23 can drive the striking component 1 to approach the material tray 22 to a preset position and stop driving the striking component 1 to move.
[0088] After the knocking assembly 1 reaches the preset position, the driving assembly 13 drives the knocking block 12 to knock the material to refine the material.
[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A striking component, characterized in that: include: bearing members; At least two striking blocks, each having different widths in a first direction, and each of the striking blocks is used to strike the material; as well as A driving assembly is arranged on the supporting member, the driving assembly is connected to the at least two striking blocks, and selectively drives one or more of the striking blocks to switch between the first position and the second position along the second direction, and the first direction and the second direction are perpendicular to each other.
2. The striking assembly according to claim 1, wherein: The carrier is provided with an accommodating groove, and the accommodating groove is used to accommodate the at least two knocking blocks in the first position.
3. The striking assembly according to claim 2, wherein: The number of the accommodating grooves is at least two, and the at least two accommodating grooves are used to accommodate the at least two knocking blocks in the first position in a one-to-one correspondence.
4. The striking assembly according to any one of claims 1 to 3, characterized in that: It also includes at least two guide blocks, each of which is connected to the driving assembly, and each of which is connected to the at least two knocking blocks in a one-to-one manner; the supporting member is provided with at least two guide grooves, each of which extends along the second direction, and the at least two guide blocks are slidably arranged in the guide grooves in a one-to-one manner.
5. The striking assembly according to claim 4, characterized in that: The guide block and the knocking block have the same width in the first direction.
6. The striking assembly according to claim 4, characterized in that: The guide block includes a first sub-block and a second sub-block, and the first sub-block and the second sub-block are both connected to the corresponding knocking block; the guide groove includes a first sub-groove and a second sub-groove, and the first sub-groove and the second sub-groove are both opened on two surfaces of the bearing member that are opposite to each other in the third direction, and the first sub-block is slidably arranged in the corresponding first sub-groove, and the second sub-block is slidably arranged in the corresponding second sub-groove; The third direction is perpendicular to the first direction and perpendicular to the second direction.
7. The striking assembly according to claim 4, characterized in that: There are two knocking blocks and two guide blocks, and the driving assembly drives the two knocking blocks to move in opposite directions through the guide blocks.
8. The striking assembly according to claim 7, wherein: The drive assembly includes: Two screws with the same thread rotation direction, the two screws are respectively threadedly connected to the two guide blocks; and A driving member is connected to the two screw rods, and the driving member drives one of the screw rods to rotate forward and the other screw rod to rotate reversely.
9. The striking assembly according to claim 8, characterized in that: The driving assembly further includes two gears meshing with each other, wherein one of the gears is connected to the driving member and sleeved on one of the screw rods, and the other gear is sleeved on the other screw rod.
10. A striking device, characterized in that: include: frame; A material tray, the material tray is rotatably mounted on the frame and is used to load materials; The knocking assembly according to any one of claims 1 to 9, wherein the knocking assembly is spaced apart from the material tray, and the knocking block is used to knock the material; and A lifting component is provided on the frame, and the lifting component is connected to the supporting member of the knocking component to drive the knocking component to approach or move away from the material tray.