Deslagging assembly, lead screw assembly and lead screw driving module

Abstract

The utility model provides a slag removal assembly, a lead screw assembly and a lead screw driving module. The slag removal assembly comprises a slag removal body, and a sleeving groove penetrating through the slag removal body in the axial direction is formed in the center of the slag removal body; an air path communicated with an external compressed air source is arranged in the deslagging body; and at least one air blowing opening communicated with the air path is formed in the groove surface of the sleeving groove. The slag removal assembly can be installed on a nut or a sliding block of the lead screw driving device, the sleeving groove in the slag removal assembly is connected to the outer side of the lead screw in a sleeving mode, when the slag removal assembly slides along the lead screw along with the nut or the sliding block, the air blowing opening in the slag removal assembly blows air to the lead screw, and therefore disintegrating slag in a groove of the lead screw is effectively blown away in time; and the clamping and damage risks of the nut or the sliding block are reduced.

Description

Technical Field

[0001] The present application relates to the field of screw drive, and in particular to a slag removal assembly, a screw assembly and a screw drive module. Background Art

[0002] The screw drive mechanism drives the nut or slider to slide through the screw, thereby driving the target object connected to the nut or slider to move horizontally. The screw is provided with a spiral groove. In certain environments, debris can easily fall into the groove of the screw, causing the nut or slider to jam or even damage. For example, during the cell dicing process, when the screw drive mechanism drives the cell, debris generated during the dicing process may fall into the groove of the screw.

[0003] The current solution is to regularly wipe the screw to remove debris from the groove. However, this regular wiping cannot promptly remove debris and is unlikely to effectively reduce the risk of nut or slider jamming and damage. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a slag removal component, which adopts the following technical solutions:

[0005] A slag removal assembly includes a slag removal body, wherein a sleeve groove is formed on the slag removal body and penetrates the slag removal body in the axial direction;

[0006] An air path connected to an external compressed air source is provided in the slag removal body, and at least one blowing port connected to the air path is provided on the groove surface of the sleeve groove.

[0007] The slag removal component of the present application can be installed on the nut or slider of the screw drive device, and the sleeve groove on it can be sleeved on the outside of the screw. When the slag removal component slides along the screw with the nut or slider, the blowing port on it blows air to the screw, thereby blowing away the debris in the screw groove in a timely and effective manner, reducing the risk of jamming and damage to the nut or slider.

[0008] In some embodiments, a slag removal notch is provided on the slag removal body, and the slag removal notch is communicated with the sleeve groove.

[0009] By setting a slag discharge notch on the slag removal body that is communicated with the sleeve groove, the slag blown off from the screw rod by the air port can be quickly discharged through the slag discharge notch, preventing the slag from falling back into the groove of the screw rod.

[0010] In some embodiments, at least one wiping block protruding from the groove surface of the sleeve groove is further provided on the groove surface of the sleeve groove.

[0011] When the slag removal assembly slides along the screw rod along with the nut or the slider, the wiping block can wipe off the debris in the screw rod groove, thereby further improving the slag removal effect of the slag removal assembly.

[0012] In some embodiments, the slag removal body includes a cover plate, at least one layer of slag removal unit and a bottom plate that are stacked and pressed in sequence along the axial direction, and the sleeve groove penetrates the cover plate, at least one layer of slag removal unit and the bottom plate along the axial direction. The slag removal assembly also includes a connector for connecting to an external compressed air source, wherein: the connector is arranged on the cover plate; the air path is located in the slag removal unit and is connected to the connector, and the air port and the wiping block are both arranged on the groove surface of the sleeve groove corresponding to the slag removal unit.

[0013] The slag removal body is set as a detachable split structure composed of a cover plate, a slag removal unit and a bottom plate stacked and pressed together, which facilitates the preparation, molding and maintenance of structures such as the air path, the air blowing port and the wiping block.

[0014] In some embodiments, the slag removal body includes at least two layers of slag removal units, a partition is provided between two adjacent layers of slag removal units, and a docking hole is provided on the partition for docking the gas paths in the two adjacent layers of slag removal units.

[0015] By designing a multi-layer slag removal unit, the axial length of the slag removal body is extended, thereby increasing the slag removal area of ​​the slag removal assembly of the present application for the screw rod.

[0016] In some embodiments, the slag removal unit includes a scraper, an air collecting plate and an air blowing plate stacked in sequence along the axial direction, and a sleeve groove penetrates the scraper, the air collecting plate and the air blowing plate along the axial direction, wherein: the wiping block is arranged on the groove surface of the sleeve groove corresponding to the scraper, and a first air guide hole is provided on the scraper that penetrates the scraper along the axial direction; an air cavity that penetrates the air collecting plate along the axial direction is provided at a position corresponding to the first air guide hole on the air collecting plate, and the air cavity and the first air guide hole are connected; a second air guide hole that penetrates the air blowing plate along the axial direction is provided at a position corresponding to the air cavity on the air blowing plate, and the second air guide hole and the air cavity are connected, and the air port is arranged on the groove surface of the sleeve groove corresponding to the air blowing plate, and the air port is connected to the second air guide hole; the first air guide hole, the air cavity and the second air guide hole constitute an air path located in the slag removal unit.

[0017] The slag removal unit is designed as a split structure consisting of a scraper, air collecting plate, and air blowing plate, which further facilitates the preparation, molding, and maintenance of the air path, air blowing port, and wiper block. For example, if the wiper block is worn, only the scraper needs to be replaced.

[0018] In some embodiments, the wiping block is a block of soft material.

[0019] Using a soft material block as the wiper block, the wiper block can be squeezed into the screw groove, thereby improving the wiping effect. In addition, the wear of the wiper block on the screw groove can be reduced.

[0020] In some embodiments, corresponding positions of the cover plate, the slag removal unit and the bottom plate are provided with connecting screw holes, and the cover plate, the slag removal unit and the bottom plate are stacked and pressed together by connecting bolts passing through the connecting screw holes.

[0021] The cover plate, slag removal unit and bottom plate are stacked and compressed by connecting bolts, which ensures the connection strength of the cover plate, slag removal unit and bottom plate, and can be quickly disassembled and assembled to facilitate the cleaning and maintenance of the slag removal body.

[0022] The present application also provides a screw assembly, comprising a screw, a nut, and at least one slag removal assembly, wherein:

[0023] The nut is screwed onto the screw rod. When the screw rod rotates, the nut is driven to move along the screw rod. The slag removal assembly is fixed to the end of the nut. The slag removal assembly is sleeved on the outside of the screw rod through the sleeve groove.

[0024] When the nut moves along the screw rod, the air port of the slag removal component blows air to the screw rod.

[0025] The screw rod assembly provided in the present application has a slag removal assembly sleeved on the screw rod. During operation, the slag removal assembly can blow away the debris in the screw rod groove, effectively reducing the risk of nut jamming and damage.

[0026] In some embodiments, a wiping block is provided in the sleeve groove of the slag removal assembly, and the wiping block of the slag removal assembly contacts the screw rod. When the nut moves along the screw rod, the wiping block of the slag removal assembly wipes the screw rod.

[0027] During the operation of the screw drive module, the wiping block wipes the debris in the screw groove, thereby improving the slag removal effect of the slag removal component.

[0028] In some embodiments, a slag removal assembly is fixed to each end of the nut.

[0029] The two slag removal components remove slag from the screw rod simultaneously, further improving the slag removal effect.

[0030] The present application also provides a screw drive module, including a base, a guide rail, a slider, a screw and a slag removal assembly, wherein:

[0031] The guide rail is arranged on the seat body;

[0032] The screw is installed on the base and is parallel to the guide rail. The slider is screwed on the screw and slidably connected to the guide rail. When the screw rotates, the slider slides along the guide rail. The slag removal assembly is fixed to the end of the slider. The slag removal assembly is sleeved on the outside of the screw through the sleeve groove.

[0033] When the slider slides along the guide rail, the air port of the slag removal component blows air to the screw rod.

[0034] The screw drive module provided in the present application has a slag removal component mounted on the screw. During operation, the slag removal component can blow away the debris in the screw groove, effectively reducing the risk of slider jamming and damage.

[0035] In some embodiments, a wiping block is provided in the sleeve groove of the slag removal assembly, and the wiping block of the slag removal assembly contacts the lead screw. When the slider moves along the lead screw, the wiping block of the slag removal assembly wipes the lead screw.

[0036] During the operation of the screw drive module, the wiping block wipes the debris in the screw groove, thereby improving the slag removal effect of the slag removal component.

[0037] In some embodiments, a slag removal assembly is fixed to each end of the slider.

[0038] The two slag removal components remove slag from the screw rod simultaneously, further improving the slag removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 Schematic diagram of the structure of the slag removal component in the embodiment of the present application;

[0040] Figure 2 A half-section schematic diagram of a slag removal assembly in an embodiment of the present application;

[0041] Figure 3 This is a schematic diagram of the disassembly of the slag removal body in the embodiment of the present application;

[0042] Figure 4 Schematic diagram of the assembly structure of the gas collecting plate and the air blowing plate in the embodiment of the present application;

[0043] Figure 5 Schematic diagram of the structure of the screw rod assembly in the embodiment of the present application;

[0044] Figure 6 Schematic diagram of the structure of the screw drive module in the embodiment of the present application;

[0045] Figures 1 to 6 Included are:

[0046] Slag removal component 10:

[0047] Slag removal body 1: cover plate 11, slag removal unit 12, scraper 121, air collecting plate 122, air blowing plate 123, first air guide hole 124, air cavity 125, second air guide hole 126, air blowing port 127, docking hole 128, bottom plate 13, partition plate 14, connecting bolts 15;

[0048] socket slot 2;

[0049] Slag discharge gap 3;

[0050] Wipe block 4;

[0051] Connector 5;

[0052] Screw rod 20 , nut 30 , seat body 40 , guide rail 50 , slider 60 . DETAILED DESCRIPTION

[0053] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0054] like Figure 1 As shown, the slag removal assembly 10 in the embodiment of the present application includes a slag removal body 1, on which a plurality of slag removal components are formed along the axial direction (such as Figure 1 The sleeve groove 2 of the slag removal body 1 is penetrated by the sleeve groove 2 of the slag removal body 1 (in the direction of the arrow in the figure).

[0055] An air path connected to an external compressed air source is provided in the slag removal body 1 , and at least one blowing port connected to the air path is provided on the groove surface of the sleeve groove 2 .

[0056] The slag removal component 10 in the embodiment of the present application can be installed on the nut or slider of the screw drive device, and the sleeve groove 2 thereon can be sleeved on the outside of the screw. When the slag removal component 10 slides along the screw with the nut or slider, the blowing port thereon blows air to the screw, thereby blowing away the debris in the screw groove in a timely and effective manner, reducing the risk of jamming and damage to the nut or slider.

[0057] Optionally, a slag discharge notch 3 is provided on the slag removal body 1 , and the slag discharge notch 3 is communicated with the sleeve groove 2 .

[0058] By providing the slag discharge notch 3 , the slag blown down from the groove of the screw rod by the air port can be quickly discharged through the slag discharge notch 3 , thereby preventing the slag from falling back into the groove of the screw rod.

[0059] As one of the embodiments, the slag removal body 1 is a cylinder, and a through hole is axially opened in the center of the cylinder as a socket groove 2. A notch is opened on the outer peripheral surface of the cylinder, and both ends of the notch extend to the two end surfaces of the cylinder. The notch is connected to the through hole in the cylinder, and the notch is the slag removal notch 3.

[0060] like Figure 1 As shown, optionally, at least one wiping block 4 is further provided on the groove surface of the sleeve groove 2 and protrudes from the groove surface of the sleeve groove 2. When the slag removal assembly 10 slides along the screw along with the nut or the slider, the wiping block 4 can wipe away the debris in the screw groove, thereby further improving the slag removal effect of the slag removal assembly 10.

[0061] like Figures 2 to 4As shown, the slag removal body 1 comprises a cover plate 11, at least one layer of slag removal units 12, and a base plate 2, which are stacked and compressed in sequence along the axial direction. A sleeve groove 2 axially extends through the cover plate 11, at least one layer of slag removal units 12, and base plate 13. The slag removal assembly 10 also includes a connector 5 for connecting to an external compressed air source, wherein the connector 5 is disposed on the cover plate 11. The air circuit is located within the slag removal units 12 and communicates with the connector 5. The air inlet and wiping block 4 are both disposed on the groove surface of the sleeve groove 2 corresponding to the slag removal units 12.

[0062] The slag removal body 1 is configured as a detachable split structure consisting of a cover plate 11, a slag removal unit 12, and a bottom plate 13 stacked and pressed together, which facilitates the preparation, molding, and maintenance of structures such as the air path, the air blow port, and the wiping block 4. In addition, by providing a connector 5, a quick connection between the air path and the compressed air source is achieved, so that the compressed gas in the compressed air source is filled into the air path of the slag removal unit 12 through the connector 5, and finally blown out through the air blow port to blow out the slag debris in the screw groove.

[0063] Of course, in other embodiments, the slag removal body 1 can also be set as an integrated block structure, and the air path is formed inside the slag removal body 1 by drilling, 3D printing, etc., and the connecting head 5 is installed at the end of the slag removal body 1 and connected to the air path.

[0064] Optionally, the slag removal body 1 includes at least two layers of slag removal units 12, with a partition 14 provided between two adjacent layers of slag removal units 12. The partition 14 is provided with a docking hole 128, which is used to dock the air paths within the two adjacent layers of slag removal units 12. By designing more than two layers of slag removal units 12, the axial length of the slag removal body 1 is extended, thereby increasing the slag removal area of ​​the slag removal assembly 10 of the present application for the screw rod, and improving the slag removal efficiency.

[0065] For example, Figure 2 In the illustrated embodiment, the deslagging body 1 includes two layers of deslagging units 12. The air circuit in the upper deslagging unit 12 is connected to the connector 5, while the air circuit in the lower deslagging unit 12 is connected to the air circuit in the upper deslagging unit 12 via the docking hole 128 on the partition 14. Compressed gas supplied by a compressed air source enters the air circuits in the upper deslagging unit 12 and the lower deslagging unit 12 in sequence through the connector 5. The air ports in the upper and lower deslagging units 12 blow air into the lead screw from different positions. Simultaneously, the wiping blocks in the upper and lower deslagging units 12, 12, wipe the lead screw from different positions.

[0066] Optionally, corresponding positions of the cover plate 11 , the slag removal unit 12 and the bottom plate 13 are all provided with connecting screw holes, and the cover plate 11 , the slag removal unit 12 and the bottom plate 13 are stacked and pressed together by connecting bolts 16 passing through the connecting screw holes.

[0067] The cover plate 11, the slag removal unit 12 and the bottom plate 13 are stacked and pressed together by connecting bolts 16, ensuring the connection strength of the cover plate 11, the slag removal unit 12 and the bottom plate 13, and can implement rapid disassembly and assembly of the cover plate 11, the slag removal unit 12 and the bottom plate 13, thereby facilitating the cleaning and maintenance of the slag removal body 1.

[0068] Continue to refer Figures 2 to 4 As shown, optionally, the slag removal unit 12 includes a scraper 121, an air collecting plate 122, and an air blowing plate 123 stacked in sequence along the axial direction, and the sleeve groove 2 axially penetrates the scraper 121, the air collecting plate 122, and the air blowing plate 123, wherein: the wiping block 4 is arranged on the groove surface of the sleeve groove corresponding to the scraper 121, and the scraper 121 is provided with a first air guide hole 124 axially penetrating the scraper 121. An air cavity 125 axially penetrating the air collecting plate 122 is provided at a position corresponding to the first air guide hole 124 on the air collecting plate 122, and the air cavity 125 is communicated with the first air guide hole 124. A second air guide hole 126 is provided on the air blow plate 123 at a position corresponding to the air cavity 125, extending axially through the air blow plate 123. The second air guide hole 126 communicates with the air cavity 125. An air port 127 is provided on the groove surface of the corresponding sleeve groove of the air blow plate 123, communicating with the second air guide hole 126. The first air guide hole 124, the air cavity 125, and the second air guide hole 126 constitute an air path within the slag removal unit 12.

[0069] The number of blowing ports 127 on each blowing plate 123 can be designed to be 1, 2 or more as needed. The number of second air guide holes 126 on each blowing plate 123 is the same as the number of blowing ports 127. The second air guide holes 126 and the blowing ports 127 are connected one-to-one. The air cavity 125 is designed to be an arc-shaped groove, and a through hole is opened at the bottom of the groove to connect with the first air guide hole 124. The blowing plate 123 covers the groove of the air cavity 125, and all the second air guide holes 126 are connected to the air cavity 125 to ensure that the gas flowing through the air cavity 125 can pass through each air guide hole 126 and be blown out through each blowing port 127 to achieve slag removal.

[0070] The slag removal unit 12 is configured as a split structure consisting of a scraper 121, an air collecting plate 122, and an air blowing plate 123, which facilitates the preparation and molding of structures such as the air path, air blowing port, and wiping block. Specifically, the scraper 121, the air collecting plate 122, and the air blowing plate 123 are first prepared and molded separately, and then the prepared scraper 121, the air collecting plate 122, and the air blowing plate 123 are stacked to form the slag removal unit 12. In addition, when the scraper 121, the air collecting plate 122, or the air blowing plate 123 is damaged, only the damaged parts need to be replaced, without replacing the entire slag removal unit 12, thereby reducing maintenance costs. For example, when the wiping block 4 is worn, only the scraper 121 needs to be replaced.

[0071] Optionally, the wiping block 4 is made of a soft material, such as a rubber block or a felt block. Using a soft material as the wiping block 4 allows the wiping block 4 to be squeezed into the screw groove, thereby improving the wiping effect. Furthermore, this reduces wear on the screw groove caused by the wiping block 4. For ease of processing, the wiping block 4 and the scraper 121 are integrally formed, and both the wiping block 4 and the scraper 121 are made of a soft material. To improve the wiping effect, multiple wiping blocks 4 can be provided on each scraper 121.

[0072] like Figure 5 As shown, the embodiment of the present application further provides a screw assembly, which includes a screw 20, a nut 30 and at least one slag removal assembly 10, wherein:

[0073] The nut 30 is screwed onto the screw rod 20 . When the screw rod 20 rotates, the nut 30 is driven to move along the screw rod 20 . The slag removal assembly 10 is fixed to the end of the nut 30 . The slag removal assembly 10 is sleeved on the outside of the screw rod 20 through the sleeve groove 2 .

[0074] When the nut 30 moves along the screw rod 20, the air blowing port of the slag removal assembly 10 blows air to the screw rod 20. The slag removal assembly 10 in the embodiment of the present application is the slag removal assembly 10 provided by any of the aforementioned embodiments of the present application.

[0075] The screw rod assembly in the embodiment of the present application has a slag removal assembly 10 sleeved on the screw rod 20. During operation, the slag removal assembly 10 can blow away the debris in the groove of the screw rod 20, effectively reducing the risk of the nut 30 getting stuck and damaged.

[0076] Of course, when the wiping block 4 is provided in the sleeve groove 2 of the slag removal assembly 10, the wiping block 4 of the slag removal assembly 10 contacts the screw rod. When the nut 30 moves along the screw rod 20, the wiping block 4 wipes the screw rod 20, thereby improving the slag removal effect of the slag removal assembly 10 on the screw rod 20.

[0077] like Figure 5 As shown, optionally, a slag removal assembly 10 is fixed to each end of the nut 30 , and the two slag removal assemblies 10 synchronously remove slag from the screw rod 20 , thereby further improving the slag removal effect.

[0078] like Figure 6 As shown, the embodiment of the present application further provides a screw drive module, which includes a base 40, a guide rail 50, a slider 60, a screw 20 and a slag removal assembly 10, wherein:

[0079] The guide rail 50 is disposed on the base 40 .

[0080] The screw rod 20 is installed on the base body 40 and is parallel to the guide rail 50. The slider 60 is screwed on the screw rod 20 and slidably connected to the guide rail 50. When the screw rod 20 rotates, it drives the slider 60 to slide along the guide rail 50. The slag removal assembly 10 is fixed to the end of the slider 60, and the slag removal assembly 10 is sleeved on the outside of the screw rod 20 through the sleeve groove 2.

[0081] When the slider 60 slides along the guide rail 50, the air blowing port of the slag removal assembly 10 blows air to the screw rod 20. The slag removal assembly 10 in the embodiment of the present application is the slag removal assembly 10 provided by any of the aforementioned embodiments of the present application.

[0082] The screw drive module in the embodiment of the present application has a slag removal assembly 10 sleeved on the screw 20. During operation, the slag removal assembly 10 can blow away the debris in the groove of the screw 20, effectively reducing the risk of jamming and damage to the slider 60.

[0083] Of course, when the wiping block 4 is provided in the sleeve groove 2 of the slag removal assembly 10, the wiping block 4 of the slag removal assembly 10 contacts the screw rod. When the slider 60 moves along the screw rod 20, the wiping block 4 wipes the screw rod 20, thereby improving the slag removal effect of the slag removal assembly 10 on the screw rod 20.

[0084] like Figure 6 As shown, optionally, a slag removal assembly 10 is fixed to each end of the slider 60 , and the two slag removal assemblies 10 synchronously remove slag from the screw rod 20 , thereby further improving the slag removal effect.

[0085] The present application has been described above in sufficient detail with certain specificity. Those skilled in the art will understand that the descriptions in the examples are merely illustrative, and that all modifications made without departing from the true spirit and scope of the present application are intended to be within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, not by the description in the examples.

Claims

1. A slag removal component, characterized in that: The slag removal assembly includes a slag removal body, and a sleeve groove is formed on the slag removal body and penetrates the slag removal body in the axial direction; An air path connected to an external compressed air source is provided in the slag removal body, and at least one blowing port connected to the air path is provided on the groove surface of the sleeve groove.

2. The slag removal assembly according to claim 1, characterized in that The slag removal body is provided with a slag discharge notch, and the slag discharge notch is communicated with the sleeve groove.

3. The slag removal assembly according to claim 1, wherein: At least one wiping block protruding from the groove surface of the sleeve groove is also provided on the groove surface of the sleeve groove.

4. The slag removal assembly according to claim 3, characterized in that: The slag removal body includes a cover plate, at least one layer of slag removal units, and a bottom plate that are sequentially stacked and pressed in the axial direction. The sleeve groove axially penetrates the cover plate, the at least one layer of slag removal units, and the bottom plate. The slag removal assembly also includes a connector for connecting to an external compressed air source, wherein: The connector is arranged on the cover plate; The air path is located in the slag removal unit and is connected to the connector. The air blowing port and the wiping block are both arranged on the groove surface of the sleeve groove corresponding to the slag removal unit.

5. The slag removal assembly according to claim 4, characterized in that: The slag removal body includes at least two layers of the slag removal units, a partition is provided between two adjacent layers of the slag removal units, and a docking hole is provided on the partition for docking the gas paths in the two adjacent layers of the slag removal units.

6. The slag removal assembly according to claim 4, characterized in that: The slag removal unit includes a scraper, an air collecting plate and an air blowing plate stacked in sequence along the axial direction, and the sleeve groove penetrates the scraper, the air collecting plate and the air blowing plate along the axial direction, wherein: The wiping block is arranged on the groove surface of the sleeve groove corresponding to the scraper, and the scraper is provided with a first air guide hole that penetrates the scraper in the axial direction; An air cavity is provided on the air collecting plate at a position corresponding to the first air guide hole and axially penetrates the air collecting plate, and the air cavity is communicated with the first air guide hole; A second air guide hole is provided on the air blowing plate at a position corresponding to the air cavity, and the second air guide hole is connected to the air cavity. The air blowing port is provided on the groove surface of the sleeve groove corresponding to the air blowing plate, and the air blowing port is connected to the second air guide hole. The first air guide hole, the air cavity, and the second air guide hole constitute the air path in the slag removal unit.

7. The slag removal assembly according to claim 3, characterized in that: The wiping block is a soft material block.

8. The slag removal assembly according to claim 4, characterized in that: The cover plate, the slag removal unit and the bottom plate are all provided with connecting screw holes at corresponding positions. The cover plate, the slag removal unit and the bottom plate are stacked and pressed together by connecting bolts passing through the connecting screw holes.

9. A screw assembly, characterized in that: The screw assembly comprises a screw, a nut and at least one slag removal assembly according to any one of claims 1 to 8, wherein: The nut is screwed onto the screw rod, and when the screw rod rotates, the nut is driven to move along the screw rod. The slag removal assembly is fixed to the end of the nut, and the slag removal body is sleeved on the outside of the screw rod through the sleeve groove. When the nut moves along the screw rod, the air blowing port of the slag removal component blows air to the screw rod.

10. The screw assembly according to claim 9, wherein: The slag removal assembly is the slag removal assembly according to any one of claims 3 to 8, the wiping block of the slag removal assembly contacts the screw rod, and when the nut moves along the screw rod, the wiping block of the slag removal assembly wipes the screw rod.

11. The screw assembly according to claim 9, wherein: A slag removal component is fixed to each of the two end portions of the nut.

12. A screw drive module, characterized in that: The screw drive module includes a base, a guide rail, a slider, a screw and at least one slag removal component according to any one of claims 1 to 8, wherein: The guide rail is arranged on the seat body; The screw rod is mounted on the base body and is parallel to the guide rail. The slider is screwed on the screw rod and slidably connected to the guide rail. When the screw rod rotates, the slider is driven to slide along the guide rail. The slag removal assembly is fixed to the end of the slider. The slag removal assembly is sleeved on the outside of the screw rod through the sleeve groove. When the slide block slides along the guide rail, the air blowing port of the slag removal component blows air to the screw rod.

13. The screw drive module according to claim 12, wherein: The slag removal assembly is the slag removal assembly according to any one of claims 3 to 8, wherein the wiping block of the slag removal assembly contacts the screw rod; When the sliding block slides along the guide rail, the wiping block of the slag removal assembly wipes the screw rod.

14. The screw drive module according to claim 13, wherein: A slag removal component is fixed to each of the two end portions of the sliding block.

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