A powder and slag collecting device

Abstract

The utility model discloses a kind of powder slag collecting devices, it is related to material separation technical field, including separation mechanism, the separation mechanism includes material receiving member;Material receiving member is equipped with material port, and material port is as the accommodating space of separation mechanism to noodle transportation, the both ends in material port are equipped with a slope, and two slopes are opposite, the interval between two slope relative horizontal points is from material port by wide to narrow by inside from outside.The utility model said a kind of powder slag collecting device, by material receiving member to noodle is transported, in the process of conveying, size specification and the noodle of proper material port remains in material port, for sustained delivery, and powder slag is through material port and falls into container, using non-vibrating gravity screening technology realizes the collection of powder slag, on the one hand, significantly improve screening efficiency, and make the conveying arrangement of noodle more regular, more satisfy the packaging demand of follow-up, on the other hand, replace the mode of vibrating screening, for dry forming noodle more friendly, guarantee finished product quality.

Description

Technical Field

[0001] This utility model relates to the field of material separation technology, specifically a powder and slag collection device. Background Technology

[0002] "Powder residue" generally refers to unavoidable byproducts in the processing of vermicelli, such as mud residue from the peeling stage, coarse residue from the grinding stage, and broken pieces from the packaging stage. In this utility model, powder residue specifically refers to short strips and broken pieces produced after vermicelli has been dried.

[0003] After drying, the better-quality vermicelli is packaged directly, while shorter or broken vermicelli can be sold as substandard products or reused. If too much vermicelli residue is mixed in during the packaging process, it will affect the overall appearance and grade classification of the finished packaged vermicelli, reducing the product's market competitiveness.

[0004] Dried vermicelli is brittle and easily broken, making it prone to secondary breakage during sieving. Therefore, it is not possible to use a general vibrating screen for separating vermicelli and slag. Manual operation is also uncertain, has a high loss rate, and is time-consuming and labor-intensive. To address this, we propose a vermicelli and slag collection device. Utility Model Content

[0005] [Technical problems solved]

[0006] To address the shortcomings of existing technologies, this utility model provides a powder and slag collection device that has advantages such as non-vibration gravity screening, and can effectively solve the problems in the background technology.

[0007] [Technical Solution]

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a powder and slag collection device, including a separation mechanism, wherein the separation mechanism includes a material receiving component, and the material receiving component conveys the powder under the action of an external drive;

[0009] A feed inlet is provided on the material receiving component. The feed inlet serves as a space for the transfer of vermicelli by the separation mechanism. A slope is provided at both ends of the feed inlet, and the two slopes are opposite to each other. The distance between the relative horizontal points on the two slopes gradually narrows from the outside to the inside of the feed inlet.

[0010] A container is located directly below the feed inlet, in a position that does not affect the operation of the material receiving component. The container is used to hold the powder and slag that pass through the feed inlet.

[0011] Preferably, the material carrier is a component for conveying the vermicelli, and can be any conveying component well known and understood by those skilled in the art, such as a conveyor belt.

[0012] As a preferred option, external drive refers to a drive device such as a motor or a motor + reducer on the conveyor belt when the material carrier is a conveyor belt. The conveying mechanism is a well-known technology in the field, so it will not be described in detail here.

[0013] Preferably, the distance between relative horizontal points on the two slopes refers to the distance between the material support components, such as... Figure 4 The distance between two horizontal points in the cross-sectional structural state shown.

[0014] Preferably, in order to reduce the drop during conveying after the powder and slag are separated, the container should be placed near the material receiving component and fixed to the outside.

[0015] Preferably, the material support component is a cylindrical structure, and the material support component rotates around its own axis under the action of an external drive.

[0016] Preferably, the material support is fixedly connected to the rotor of an external drive mechanism such as a motor or a motor + reducer.

[0017] Preferably, at least one guide is provided between the material receiving component and the external conveying mechanism to receive the powder strips that are separated from the powder residue. The bottom end of the guide is adjacent to the material receiving component and is located on one side of the material receiving component where the material outlet direction is not downward. The guide and the material receiving component form a conical space that narrows from top to bottom.

[0018] Preferably, the guide is fixed to the outside, which refers to any part that does not affect the operation of the device, such as the frame.

[0019] As a preferred option, in order to reduce the loss of vermicelli during transportation, the guide component has a certain slope to buffer the vermicelli during loading and unloading.

[0020] Preferably, two sets of material-bearing components are arranged opposite each other, and a frame is provided on the outside of each set of material-bearing components that can slide relative to them but cannot rotate relative to them. The two frames are also provided with material inlets based on the material-bearing components. During the rotation of the material-bearing components, the frame and the material-bearing components are restricted by the external axial direction and cannot slide based on their axial direction.

[0021] Preferably, the frame is connected to the material support component via a key shaft, wherein the key shaft is fixedly connected to the base of the material support component, and the key shaft passes through the base of the frame to the outside and is connected to the external drive mechanism.

[0022] Preferably, in order to achieve automated drive control of the rotation and sliding of the material-bearing component, such as... Figure 9In the structural configuration shown, a telescopic drive component is connected to the key shaft. The telescopic section of the telescopic drive component is connected to the key shaft through a bearing seat, allowing only relative rotation. A coupling is provided between the key shaft and the rotating drive component. This coupling is fixedly connected to the rotor on the rotating drive component, and the coupling and the key shaft form a key connection.

[0023] Preferably, the rotary drive component is any rotary drive component known and understood by those skilled in the art, such as a motor or a motor + reducer, and the telescopic drive component is any telescopic drive component known and understood by those skilled in the art, such as a cylinder, a hydraulic cylinder, or an electric push rod, wherein the coupling and key shaft are preferably of spline structure.

[0024] Preferably, the material inlets on the frame and the material support are formed by the gaps between rods one and two, which are fixed in an equidistant ring array on their corresponding base one and base two.

[0025] Preferably, the frame includes a base, on which a fixed part is provided that can slide relative to the base. During the rotation of the frame, the fixed part is fixed in place, thus limiting the axial movement of the frame.

[0026] Preferably, during the operation of the device, the fixing parts on the two frames can be directly fixed to the outside, or connected to the external telescopic drive components to meet the needs of automated control.

[0027] Preferably, the material receiving component is provided with protrusions. The protrusions mainly serve as markings. When the distance between the two material receiving components changes, the appropriate noodle feeding position on the frame can be determined by the two sets of protrusions. In this way, the two sets of protrusions guide the installation position of the guide component.

[0028] Preferably, the fixing part is provided with a sliding part, and a groove that fits the structure is provided on the base at a position corresponding to the sliding part.

[0029] Preferably, the two sets of frames are provided with a set of connecting slots and connecting parts at their joints. If one frame is provided with a connecting slot, then the part on the other frame corresponding to this connecting slot is provided with a connecting part.

[0030] Preferably, the connecting part is similar to a pin, which, when engaged with the connecting groove, allows the two frames to be independently circumferentially limited during the operation of the device, ensuring the consistency of rotation of the two frames.

[0031] Preferably, the non-material outlet portion of the frame and material support is wider at the outside and narrower at the inside. This can be achieved by using rounded corners to reduce the friction coefficient between the powder and slag inside the frame and the material, thereby accelerating the outflow of the powder and slag and preventing blockage.

[0032] [Beneficial Effects]

[0033] Compared with the prior art, the present invention provides a powder and slag collection device, which has the following beneficial effects:

[0034] This powder residue collection device conveys the noodles through a receiving component. During the conveying process, noodles of appropriate size and specifications remain at the inlet and are continuously conveyed, while the powder residue falls into the container through the inlet. The collection of powder residue is achieved by using non-vibrating gravity screening technology. On the one hand, it significantly improves screening efficiency and makes the conveyed noodles more orderly, better meeting the subsequent packaging requirements. On the other hand, it replaces the vibrating screening method, which is more friendly to dried and shaped noodles, reduces the probability of loss of noodles during sorting and conveying, and ensures the quality of finished products. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of a powder and slag collection device according to a preferred embodiment of the present invention.

[0036] Figure 2 This is a structural disassembly diagram of the separation mechanism in a powder and slag collection device of this utility model.

[0037] Figure 3 This is a structural cross-sectional diagram of the material receiving component used in the separation mechanism of a powder and slag collection device according to this utility model.

[0038] Figure 4 This is a schematic diagram of the position of the vermicelli in the operation state of the vermicelli collection device of this utility model.

[0039] Figure 5 This is a schematic diagram of the structure of a powder and slag collection device according to the present invention.

[0040] Figure 6 This is a side sectional view of a preferred embodiment of the powder and slag collection device of this utility model.

[0041] Figure 7 This is a schematic diagram of the frame of a powder and slag collection device according to the present invention, representing a preferred embodiment.

[0042] Figure 8 This is a partial structural diagram of the frame and material-bearing components in a powder and slag collection device according to the present invention.

[0043] Figure 9 This is a schematic diagram of a preferred embodiment of the powder and slag collection device of this utility model.

[0044] In the picture:

[0045] 1. Feed guide; 2. Separation mechanism; 3. Container; 4. Drive mechanism;

[0046] 21. Frame; 22. Material support components;

[0047] 211. Rod 1; 212. Base 1; 213. Fixing part;

[0048] 2111, Connecting groove; 2112, Connecting part;

[0049] 2121. Slide groove;

[0050] 2131. Sliding part;

[0051] 221. Rod 2; 222. Key shaft; 223. Slope; 224. Protrusion; 225. Base 2;

[0052] 41. Telescopic drive component; 42. Rotation drive component; 43. Coupling. Detailed Implementation

[0053] To make the technical means, creative features, achieved objectives, and functional effects of this utility model readily understandable, the present utility model will be further described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0054] Example 1

[0055] To address the shortcomings of existing technologies, such as Figures 4-5 As shown, this utility model provides a powder and residue collection device, including a separation mechanism 2, which includes a material receiving component 22, which conveys the powder under the action of an external drive.

[0056] A feed inlet is provided on the material receiving component 22. The feed inlet serves as the receiving space for the transfer of vermicelli by the separation mechanism 2. A slope 223 is provided at both ends of the feed inlet, and the two slopes 223 are opposite to each other. The distance between the relative horizontal points on the two slopes 223 decreases from the outside to the inside of the feed inlet.

[0057] There is a container 3 located directly below the feed inlet, in a position that does not affect the operation of the material receiving component 22. The container 3 is used to contain the powder and slag passing through the feed inlet.

[0058] It should be noted that during the vermicelli processing, prior to the packaging of the formed vermicelli, it is necessary to separate and collect the vermicelli residue.

[0059] The vermicelli is cut into strips, dried, and then shaped, and is smoothly conveyed by an external conveying mechanism. In this embodiment, for example... Figure 5As shown, the separation mechanism 2 is connected to the external conveying mechanism to form a complete powder and slag collection production line;

[0060] The powder residue to be separated is conveyed to the separation mechanism 2 via the upstream conveying mechanism. Powder residue of appropriate length is retained on the receiving part 22 of the separation mechanism 2 and located in its inlet. The powder residue is carried by the receiving part 22 and transferred from the upstream to the downstream of the separation mechanism 2. Powder residue of non-standard length falls into the container 3 through the receiving part 22, thereby realizing the collection of powder residue.

[0061] It is worth mentioning that the vermicelli is conveyed through the material receiving component 22. During the conveying process, vermicelli of appropriate size and specifications to the material inlet is retained on the material inlet for continuous conveying, while the residue falls through the material inlet into the container 3. The residue is collected by non-vibration gravity screening technology. On the one hand, it significantly improves screening efficiency and makes the conveyed vermicelli arrangement more regular, which better meets the subsequent packaging requirements. On the other hand, it replaces the vibrating screening method, which is more friendly to dried and shaped vermicelli, reduces the probability of loss of vermicelli during sorting and conveying, and ensures the quality of finished products.

[0062] Among them, the material carrier 22 is a component for conveying vermicelli, and can be any conveying component that is well known and understood by those skilled in the art, such as a conveyor belt.

[0063] External drive refers to the drive device on the conveyor belt, such as a motor or a motor + reducer, when the material carrier 22 is a conveyor belt. The conveying mechanism is a well-known technology in the field, so it will not be described in detail here.

[0064] The distance between relative horizontal points on the two slopes 223 refers to the distance between the material bearing 22, such as... Figure 4 The distance between two horizontal points in the cross-sectional structural state shown;

[0065] To reduce the drop height during conveying after the powder and slag are separated, container 3 should be placed near the material receiving component 22 and fixed to the outside.

[0066] In this embodiment, the structural shape of the material receiving component 22 is not further limited, meaning that any instrument or mechanism capable of transferring vermicelli with a material inlet and a slope 223 can be used to implement this embodiment. Instruments or mechanisms capable of transferring vermicelli refer to any conveying mechanism well-known and understood by those skilled in the art, such as a conveyor belt. In the conveying mechanism, by opening a conveyor belt such as a rubber belt... Figure 4 The material inlet and slope 223 shown can achieve the same effect as the material support 22 in this embodiment.

[0067]

Example 2

[0068] Considering the brittle texture of dried vermicelli, the subsequent processing time is too long, or the required conveying length is too large, both of which pose significant risks of unnecessary losses. Therefore, to further shorten the sorting process for vermicelli residue after drying, this embodiment is proposed based on the above embodiment one:

[0069] Specifically, such as Figures 1-3 As shown, a material receiving component 22 for a powder and slag collection device is shown. The material receiving component 22 has a cylindrical structure and rotates around its own axis under the action of an external drive.

[0070] The material support 22 is fixedly connected to the rotor of an external drive mechanism such as a motor or a motor + reducer.

[0071] It should be noted that this utility model is a powder residue collection device. Through the set material receiving component 22, since the material receiving component 22 is a cylindrical structure, the powder needs to be fed on the side of the material receiving component 22 where the material opening direction is not downward. During this process, the powder is rotated by rotating the material receiving component 22 to realize the operation of the powder. The powder residue passes through the material opening and falls into the container 3 under its own weight to be collected, while the powder is fed in the direction of the material opening on the material receiving component 22 where the material opening direction is not upward and not vertically downward.

[0072] It is worth mentioning that, in this embodiment, since the material receiving component 22 is a cylindrical structure, it means that the operation mode of the vermicelli is changed from horizontal translation to better circular operation. On the one hand, the stroke required for the vermicelli to move in one circumferential direction is relatively short, which makes the overall footprint of the vermicelli collection device smaller.

[0073] On the other hand, compared to the lateral translation operation, since the support direction of the vermicelli is always upward during the lateral translation operation, if the size of the dregs is not appropriate but gets stuck in the feed inlet, the dregs may not be able to fall into the container 3 smoothly without changing the external force. However, for the circular operation, the direction of the support force on the vermicelli in the material receiving component 22 is different at different times during the operation. If the dregs are temporarily stuck, during the circular operation, as the direction of the support force on the dregs continues to change, it will disturb the dregs and allow them to pass through the feed inlet smoothly.

[0074] As a preferred embodiment, based on the above-described Example 2, in order to reduce the drop height of the powdered slag during transport, container 3 should be placed near the separation mechanism 2, such as... Figure 1 As shown in the structural state, when the material receiving component 22 is a cylindrical structure, the container 3 can be used to support the separation mechanism 2, wherein the separation mechanism 2 is rotatably connected to the container 3 through a bearing seat.

[0075]

Example 3

[0076] Based on the above embodiment two, since the material receiving component 22 is cylindrical, in order to make the vermicelli more stable during the process of conveying it to the material receiving component 22 and to minimize the conveying loss of the vermicelli, this embodiment is proposed:

[0077] Specifically, such as Figure 1 , 6 As shown, a separation mechanism 2 for a powder residue collection device has at least one guide 1 between the material receiving component 22 and the external conveying mechanism for receiving powder residue. The bottom end of the guide 1 is adjacent to the material receiving component 22 and is located on one side of the material receiving component 22 where the material outlet direction is not downward. The guide 1 and the material receiving component 22 form a conical space that narrows from top to bottom.

[0078] The guide component 1 is fixed to the outside. The outside refers to any part that does not affect the operation of the device, such as the frame.

[0079] It should be noted that this utility model is a powder and slag collection device. In this embodiment, the separation mechanism 2 is connected to the external conveying mechanism through the material guide 1. The ends of the two material guides 1 that are away from the separation mechanism 2 are connected to the corresponding conveying mechanisms.

[0080] like Figure 6 In the structural state shown, the bottom end of one of the guide components 1 on the feeding side is close to one of the non-downward-facing sides of the feed inlet on the receiving component 22. Preferably, the guide component 1 and the receiving component 22 form a receiving area. The receiving area is a conical space that narrows from top to bottom. Within this conical space, the powder falling from the guide component 1 can be arranged in an orderly manner, and as the receiving component 22 rotates, the powder can enter the feed inlet on the receiving component 22 in an orderly manner for powder and residue separation.

[0081] In order to reduce the loss of vermicelli during transportation, the guide component 1 has a certain slope to buffer the vermicelli during loading and unloading.

[0082]

Example 4

[0083] Considering the different sizes of the produced vermicelli, and the varying requirements for sorting vermicelli and residue, such as the need to collect residue from longer or shorter vermicelli, the required feed inlet length needs to be adapted. Therefore, based on any of the embodiments in Examples 2 to 4 above, this embodiment is proposed:

[0084] Specifically, such as Figure 2As shown, a separation mechanism 2 for a powder and slag collection device has two sets of material-bearing components 22 arranged opposite to each other. Each of these two sets of material-bearing components 22 has a frame 21 that can slide relative to it but cannot rotate relative to it. The frame 21 also has a corresponding material inlet based on the material-bearing component 22. During the rotation of the material-bearing component 22, both the frame 21 and the material-bearing component 22 are restricted by the external axis and cannot slide based on their axis.

[0085] The frame 21 is connected to the material support 22 by a key shaft 222. The key shaft 222 is fixedly connected to the base 225 of the material support 22. The key shaft 222 passes through the base 212 on the frame 21 and connects to the external drive mechanism.

[0086] The material inlets on the frame 21 and the material support 22 are formed by the gaps between rods 211 and 221 that are fixed in an equidistant ring array on their corresponding bases 212 and 225.

[0087] It should be noted that this utility model is a powder and residue collection device. In this embodiment, there are two sets of opposing material receiving components 22 through the separation mechanism 2. When the size and specifications of the powder and residue to be sorted are different, the distance between the two material receiving components 22 needs to be changed according to the actual implementation requirements. That is, the two material receiving components 22 slide inside the frame 21. After the distance between the two material receiving components 22 is adjusted appropriately, the two material receiving components 22 need to be axially limited so that they can only rotate in place and cannot move axially.

[0088] In a preferred embodiment, to achieve automated drive control of the rotation and sliding of the material support 22, such as... Figure 9 In the structural state shown, a telescopic drive member 41 is connected to the key shaft 222. The telescopic section of the telescopic drive member 41 is connected to the key shaft 222 through a bearing seat so that it can only rotate relative to each other. A coupling 43 is provided between the key shaft 222 and the rotation drive member 42. This coupling 43 is fixedly connected to the rotor on the rotation drive member 42, and the coupling 43 and the key shaft 222 form a key connection.

[0089] The rotation drive 42 is any rotation drive known and understood by those skilled in the art, such as an electric motor or an electric motor plus a reducer. The telescopic drive 41 is any telescopic drive known and understood by those skilled in the art, such as a cylinder, a hydraulic cylinder, or an electric push rod. The coupling 43 and the key shaft 222 are preferably of a spline structure.

[0090] Example 5

[0091] Based on the above embodiment four, since a frame 21 is added to the outside of the material receiving component 22 to meet the requirement of adjusting the distance between the two material receiving components 22, the powder residue collection device can be applied to the sorting of vermicelli of multiple lengths. Considering that some powder residue will remain inside the frame 21 during the powder residue separation process, and that it is necessary to clean the powder residue inside the frame 21 when there is a large amount of powder residue inside the frame 21, this embodiment is proposed:

[0092] It should be noted that this utility model is a powder and slag collection device. Through the separation mechanism 2, in order to prevent excessive powder and slag in the frame 21 from affecting the subsequent separation process, it is necessary to periodically clean the powder and slag in the frame 21. During the normal separation process, the two frames 21 can only rotate synchronously with the material support 22 and cannot move based on its axial direction. When it is necessary to clean the powder and slag in the frame 21, the axial movement limit of the two frames 21 can be removed, so that they can slide apart based on their axial direction.

[0093] During the process of the two frames 21 sliding apart, the powder and slag inside the frames 21 are simultaneously subjected to the force of the material support 22, and then fall vertically into the container 3 for collection.

[0094] Specifically, such as Figure 7 As shown, a separation mechanism 2 for a powder and slag collection device includes a frame 21 comprising a base 212, on which a fixed part 213 is provided that can slide relative to the base 212. During the rotation of the frame 21, the fixed part 213 is fixed and does not move, thus limiting the axial movement of the frame 21.

[0095] During the operation of the device, the fixing parts 213 on the two frames 21 can be directly fixed to the outside, or connected to the external telescopic drive component 41 to meet the needs of automated control.

[0096] Furthermore, a sliding part 2131 is provided on the fixing part 213, and a groove 2121 that fits the structure is provided on the base 212 at the position corresponding to the sliding part 2131.

[0097] In a preferred embodiment, a protrusion 224 is provided on the material receiving component 22. The protrusion 224 mainly serves as an identifier. When the distance between the two material receiving components 22 changes, the appropriate noodle feeding position on the frame 21 can be determined by the two sets of protrusions 224. In this way, the two sets of protrusions 224 guide the installation position of the guide component 1.

[0098] As a preferred embodiment, and as Figure 7As shown, the two sets of frames 21 are provided with a set of connecting grooves 2111 and connecting parts 2112 at their joints. One frame 21 is provided with a connecting groove 2111, and the part on the other frame 21 corresponding to this connecting groove 2111 is provided with a connecting part 2112.

[0099] The connecting part 2112 is similar to a pin. After cooperating with the connecting groove 2111, the two frames 21 do not need to be separated and independently circumferentially limited during the operation of the device, thus ensuring the rotation consistency of the two frames 21.

[0100] As a preferred embodiment, and as Figure 8 As shown, the non-material outlet parts of the frame 21 and the material receiving component 22 are wide to narrow from the outside to the inside. This can be achieved by using rounded corners to reduce the friction coefficient between the powder and slag inside the frame 21 and the material receiving component 22, thereby accelerating the outflow of the powder and slag and preventing blockage.

[0101] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A powder and slag collection device, comprising a separation mechanism (2), characterized in that: The separation mechanism (2) includes a material receiving component (22), which conveys the vermicelli under the action of an external drive; A feed inlet is provided on the material receiving component (22). The feed inlet serves as the receiving space for the transfer of vermicelli by the separation mechanism (2). A slope (223) is provided at both ends of the feed inlet, and the two slopes (223) are opposite to each other. The distance between the relative horizontal points on the two slopes (223) gradually narrows from the outside to the inside of the feed inlet. A container (3) is located directly below the feed inlet, in a position that does not affect the operation of the material receiving component (22). The container (3) is used to hold the powder and slag passing through the feed inlet.

2. The powder and slag collection device according to claim 1, characterized in that: The material support (22) is a cylindrical structure, and the material support (22) rotates around its own axis under the action of external drive.

3. The powder and slag collection device according to claim 2, characterized in that: At least one guide (1) is provided between the receiving component (22) and the external conveying mechanism to receive the powder strips that are separated from the powder residue. The bottom end of the guide (1) is adjacent to the receiving component (22) and is located on one side of the receiving component (22) where the material outlet direction is not downward. The guide (1) and the receiving component (22) form a conical space that narrows from top to bottom.

4. The powder and slag collection device according to claim 2, characterized in that: The material support (22) is arranged in two sets, and a frame (21) is provided on the outside of the two sets of material support (22) so that it can slide relative to it but cannot rotate relative to it. The two frames (21) are also provided with material openings based on the material support (22). During the rotation of the material support (22), the frame (21) and the material support (22) are restricted by the external axis and cannot slide based on its axis.

5. A powder and slag collection device according to claim 4, characterized in that: The frame (21) includes a base (212), on which a fixed part (213) is provided that can slide relative to the base (212). During the rotation of the frame (21), the fixed part (213) is fixed and does not move, thus limiting the axial movement of the frame (21).

6. The slag collection device according to claim 5, characterized in that: The fixed part (213) is provided with a sliding part (2131), and a groove (2121) that fits the structure is provided on the base (212) at the position corresponding to the sliding part (2131).

7. A powder and slag collection device according to claim 4, characterized in that: The two sets of frames (21) are provided with a set of connecting grooves (2111) and connecting parts (2112) at their joints. One frame (21) is provided with a connecting groove (2111), and the part of the other frame (21) corresponding to the connecting groove (2111) is provided with a connecting part (2112).

8. A powder and slag collection device according to claim 4, characterized in that: On the frame (21) and the material support (22), the non-material opening part is wide and narrows freely from the outside to the inside.

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