Wire cutting machine

Abstract

The utility model relates to the technical field of wire cutting, in particular to a wire cutting machine which comprises a frame, a wire cutting mechanism, a wire cutting mechanism and a wire cutting mechanism. The tension mechanism is arranged on the frame; and a threading mechanism. The wire cutting machine further comprises a sealing assembly, the sealing assembly comprises a base body, the base body is arranged on the frame in an integrally formed or fixedly connected mode, a cavity is formed in the base body and / or the frame, and a moving opening allowing the threading mechanism to move is formed in the position, corresponding to the cavity, of the wire cutting machine; the moving opening is provided with at least one protective cover so that cutting liquid can be prevented from entering the cavity from a cutting area and / or entering a winding area where the tension mechanism is located from the cavity. By means of the structure, the probability that silicon sludge thrown out of a cutting area falls on structures such as a tension wheel of a tension mechanism and a winding roller of a take-up and pay-off mechanism is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting, and specifically provides a wire cutting machine. Background Art

[0002] Wire cutting machine is a kind of equipment which uses cutting wire (such as diamond wire, etc., with tiny diamond particles embedded on the surface of the diamond wire) to perform cutting operations such as truncation, squaring and slicing on hard and brittle materials to be processed (such as photovoltaic silicon materials (including single crystal silicon rods, polycrystalline silicon ingots, etc.), semiconductors, silicon carbide, sapphire, magnetic materials, etc.).

[0003] Taking the slicer that slices photovoltaic silicon rods (referred to as silicon rods) as an example, the slicer directly operates the workpiece through the cutting mechanism. For example, under normal circumstances, the wire cutting machine mainly includes three cutting main rollers (two on the top and one on the bottom) distributed in an inverted triangle shape. The cutting main rollers are processed with dense annular grooves. By densely winding the diamond wire at the position corresponding to the annular groove, a continuous cutting wire network can be formed. Based on this, through the reciprocating movement of the diamond wire between the cutting mechanism and other structures of the wire cutting machine such as the retracting and releasing wire rollers, the diamond wire located between the two upper cutting main rollers can cut the workpiece.

[0004] However, when the slicer is running at high speed, the cutting fluid containing silicon powder attached to the diamond wire will inevitably be thrown out of the cutting area of ​​the slicer under the action of inertia and centrifugal force. In this way, if the silicon mud (silicon powder agglomerated under the premise of cutting fluid) thrown out of the cutting area falls on structures such as tension wheels and winding rollers, it will affect the slicing efficiency of the slicer to a certain extent and even cause the risk of diamond wire breakage.

[0005] Therefore, this field needs a new technical solution to solve the above technical problems. Utility Model Content

[0006] The utility model aims to solve the above-mentioned technical problems at least to a certain extent. Specifically, it solves the technical problem that the silicon mud thrown out from the cutting area falls on structures such as tension wheels and winding rollers, which may affect the slicing efficiency of the slicer to a certain extent and even cause the risk of diamond wire breakage.

[0007] In view of this, the utility model provides a wire cutting machine, which includes: a frame, which forms a cutting area, and the cutting area is provided with a cutting mechanism; a tension mechanism, which is arranged on the frame; and a threading mechanism, which is fixedly connected to the tension mechanism on the one hand and extends into the cutting area on the other hand; the wire cutting machine also includes: a sealing assembly, which is arranged on the frame at a position corresponding to the cutting area close to the tension mechanism, and the sealing assembly includes: a base, which is arranged on the frame in an integrally formed or fixedly connected manner.

[0008] Through such a structure, it is possible to block the cutting fluid containing silicon powder through the sealing component containing the chamber, thereby effectively avoiding the phenomenon that the silicon mud thrown out from the cutting area falls on the structures such as the tension wheel of the tension mechanism and the winding roller of the wire-reeling mechanism, thereby reducing the probability of the problem that the slicing efficiency of the slicer is affected or even the risk of the diamond wire breaking. The moving port that allows the threading mechanism to move is mainly used to ensure that the cutting operation of the wire cutting machine is not affected on the basis of adding a sealing function, such as the moving port can be a long strip groove.

[0009] It is understandable that those skilled in the art can determine the structural form of the base, the number of components it includes, its specific position on the frame, and the specific setting method, etc. according to actual needs.

[0010] It is understandable that those skilled in the art can determine the number, form, and configuration method and configuration area of ​​the protective shield on the moving port according to actual needs. For example, if the threading mechanism needs to pass through two moving ports to enter the cutting area, a protective shield can be configured on one of the moving ports or on both moving ports. For any moving port, a protective shield can be configured in the entire area of ​​the moving port or in a local area of ​​the moving port. The protective shield can be configured on the moving port in a fixed connection or a movable connection, and the protective shield can be a rigid structure or a flexible structure, etc.

[0011] For the above-mentioned wire cutting machine, in a possible implementation manner, the protective cover is a flexible protective cover.

[0012] With such a structure, it is possible to better ensure the sealing effect of the sealing assembly through the movement of the flexible protective cover along the length direction of the movable port.

[0013] It is understandable that those skilled in the art can determine the structural form of the flexible protective cover according to actual needs, such as a protective cover of any form that can adjust its coverage of the mobile port by means of deformation of the protective cover.

[0014] In addition, it can be understood that technical personnel in this field can determine the external force with which the coverage range of the protective cover on the moving port can be adjusted according to actual needs. For example, a special adjustment structure can be configured (such as a push-pull mechanism that can enable it to be extended and retracted along the length direction of the moving port, etc.), or the known mechanism of the wire cutting machine can be used to drive its movement to achieve adjustment of the coverage range of the moving port.

[0015] For the above-mentioned wire cutting machine, in a possible implementation manner, the flexible protective cover is an accordion protective cover.

[0016] Through such a construction, a specific structural form of the flexible protective cover is provided.

[0017] For the above-mentioned wire cutting machine, in a possible implementation manner, one end of the accordion protective cover is arranged on the base body and the other end is arranged on the threading mechanism.

[0018] With such a structure, the movement of the threading mechanism along the movable opening can drive the accordion protective cover to move, thereby realizing adjustment of the coverage range of the movable opening.

[0019] For the above-mentioned wire cutting machine, in a possible implementation, the accordion guard cover includes a first accordion guard cover and a second accordion guard cover, and when observed along the movement direction of the threading mechanism along the moving port, the first accordion guard cover and the second accordion guard cover are located on both sides of the threading mechanism.

[0020] Through such a configuration, a specific structural form of the accordion protective cover is provided. Based on this, the entire process of the threading mechanism moving along the moving mouth can be reliably sealed based on the cooperation of the two accordion protective covers.

[0021] For the above-mentioned wire cutting machine, in a possible implementation manner, the frame has a step surface, the base includes a top surface portion and a side surface portion, and the step surface, the top surface portion and the side surface portion enclose the chamber.

[0022] Through such a configuration, a possible way of forming the chamber is provided.

[0023] Specifically, the side surface is arranged around the horizontal part of the step surface, and the top surface can be arranged on the side surface and / or the vertical part of the step surface in an integrated manner or in a fixed connection. In this way, a substantially closed chamber is formed by the step surface, the top surface and the side surface.

[0024] For the above-mentioned wire cutting machine, in a possible implementation manner, at least a portion of the top surface portion is a non-planar structure.

[0025] With such a structure, the cutting fluid from the cutting area can be timely flowed away at the gathering position by means of the gathering function of the non-planar structure, thereby avoiding the accumulation and deposition of silicon mud on the top surface.

[0026] It is understandable that those skilled in the art can determine the specific structural form and corresponding aggregation position of the non-planar structure with aggregation function according to actual needs, such as a curved surface with a concave / convex middle part, two inclined surfaces with a high middle part and low outer edges, etc.

[0027] For the above-mentioned wire cutting machine, in a possible implementation manner, the top surface portion is divided into an inclined surface.

[0028] Through such a configuration, a specific structural form of the top surface portion is provided.

[0029] For the above-mentioned wire cutting machine, in a possible implementation manner, a cleaning port and / or an observation port is opened on the top surface portion, and the cleaning port and / or the observation port is provided with a cover plate.

[0030] Through such a configuration, a specific structural form of the base is provided. For example, the observation port can facilitate the operator to observe the condition of the diamond wire in the threading mechanism or the routing mode of the diamond wire after it is broken, and the cleaning port is mainly used to clean the silicon mud deposited in the chamber during regular maintenance of the slicer. By setting the cover plate, the cleaning port and the observation port are blocked when they are not needed, thereby ensuring the sealing performance of the chamber.

[0031] For the above-mentioned wire cutting machine, in a possible embodiment, the cover plate includes: a first cover plate, which is removably arranged at a position of the top surface portion corresponding to the cleaning port; and / or a second cover plate, which is movably arranged at a position of the top surface portion corresponding to the observation port.

[0032] This configuration provides a possible structural form of the cover plate.

[0033] Specifically, since the cleaning port is used less frequently, the first cover plate can be directly configured by screwing or the like. When the cleaning port is needed, it can be removed. The observation port is used more frequently, so the second cover plate can be configured by a movable method such as pushing, pulling, rotating, etc. Obviously, the two cover plates can also be combined into one cover plate.

[0034] For the above-mentioned wire cutting machine, in a possible implementation manner, the second cover plate is rotatably arranged on the top surface portion; and / or an operating end is arranged on the second cover plate.

[0035] Through such a configuration, a specific structural form of the second cover plate is provided.

[0036] It is understandable that those skilled in the art can determine the specific structural form by which the rotation is achieved according to actual needs, such as a hinge or a rotating shaft, etc. The operating end can be a handle, a groove, an edge, etc.

[0037] For the above-mentioned wire cutting machine, in a possible embodiment, the top surface part is provided with a mounting seat, a connecting shaft is provided on the mounting seat, and the second cover plate is provided on the connecting shaft in a manner that can rotate around the connecting shaft; and / or the second cover plate is provided with a constraint member, and the constraint member is movably configured on the cover plate so that: based on the activity, the constraint member applies / releases constraints to the second cover plate.

[0038] Through such a configuration, a specific rotational connection mode between the second cover plate and the top surface portion is provided. And, based on the setting of the constraint member, a constraint is applied when the second cover plate covers the observation port so that the second cover plate can reliably cover the observation port. And the second cover plate is allowed to move and open the observation port only after the constraint is removed. It can be understood that those skilled in the art can determine the specific form of the activity and the specific mechanism used to realize the activity according to actual needs. For example, the activity can be a push-pull movement, rotation, etc.

[0039] It is understandable that those skilled in the art can determine the structural form and number of the constraint member and the specific way to constrain the second cover plate according to actual needs. For example, the constraint member can be a rod-shaped structure, a plate-shaped structure, a block-shaped structure, etc., and the constraint method for the second cover plate can be direct abutment or a matching method such as plug-in, etc. Exemplarily, the constraint member is a plate-shaped structure, which can directly abut against the upper surface of the second cover plate by rotating.

[0040] For the above-mentioned wire cutting machine, in a possible implementation manner, the chamber is configured with a drain port.

[0041] By such a configuration, it is possible to discharge the cutting fluid collected in the chamber through the drain port. For example, the drain port can be provided on the base (side portion) and / or the step surface (lateral portion or vertical portion).

[0042] For the above-mentioned wire cutting machine, in a possible implementation manner, the drain port is arranged at a position corresponding to the bottom of the chamber and / or a position close to the bottom thereof; and / or the drain port is configured with a drain pipeline capable of discharging the cutting fluid.

[0043] Through such a configuration, a specific structural form of the sealing component corresponding to the cutting fluid discharge function is provided. For example, a liquid discharge port is respectively provided on the side and the bottom of the step surface.

[0044] For the above-mentioned wire cutting machine, in a possible embodiment, the threading mechanism is provided with a wire routing groove allowing the cutting wire to pass through, wherein the wire routing groove is provided with a drainage port; and / or the wire routing groove is arranged at a position close to the middle of the threading mechanism along the length direction of the threading mechanism, and when observed along the width direction of the threading mechanism, the upper surface of the threading mechanism is a structure that decreases toward both sides from the position corresponding to the wire routing groove.

[0045] Through such a structure, the cutting liquid thrown out from the cutting area can be timely flowed out from the threading mechanism through the drainage port, and the inclined setting of the upper surface can also drain the cutting liquid thrown out to the upper surface to the drainage port. For example, the drainage port may include one or more, which can be set at the bottom or wall of the wiring groove. The upper surface of the threading mechanism can be an inclined surface or a curved surface.

[0046] For the above-mentioned wire cutting machine, in a possible implementation manner, the wire cutting machine is a slicer.

[0047] Through such a structure, a specific structural form of the wire cutting machine is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The following takes the workpiece to be processed as a silicon rod to be cut (hereinafter referred to as silicon rod) and the wire cutting machine as a slicer as an example, and describes the preferred embodiment of the utility model with reference to the accompanying drawings, in which:

[0049] Figure 1 A schematic structural diagram of a slicer according to an embodiment of the utility model is shown;

[0050] Figure 2 A schematic diagram showing the structure of a sealing component in a slicer according to an embodiment of the utility model Figure 1 , the figure shows the moving port, the first / second accordion guard and the threading mechanism;

[0051] Figure 3 A schematic diagram showing the structure of a sealing component in a slicer according to an embodiment of the utility model Figure 2 , the figure shows the structural details of the sealing assembly such as the first cover plate, the second cover plate, and the connecting shaft;

[0052] Figure 4 A schematic diagram showing the structure of a base in a sealing assembly of a slicer according to an embodiment of the utility model; and

[0053] Figure 5 A structural schematic diagram of a threading mechanism of a slicer according to an embodiment of the utility model is shown.

[0054] List of reference numerals:

[0055] 100. Slicer;

[0056] 1. Frame; 11. Step surface;

[0057] 21. First wire-retracting and -releasing mechanism; 22. Second wire-retracting and -releasing mechanism;

[0058] 3. Cutting mechanism;

[0059] 31. First cutting main roller; 32. Second cutting main roller; 33. Third cutting main roller;

[0060] 41. A first tension mechanism; 42. A second tension mechanism;

[0061] 51. The first linear module; 52. The first linear module;

[0062] 6. Threading mechanism;

[0063] 61. First wiring trough; 62. Second wiring trough; 63. Drainage port;

[0064] 7. Sealing components;

[0065] 71. Matrix;

[0066] 711, side part; 7111, mobile port;

[0067] 712, top surface portion; 7121, cleaning port; 7122, observation port; 7123, first cover plate; 7124, second cover plate; 71241, second cover plate handle; 71251, mounting seat; 71252, connecting shaft; 71261, pressing plate; 71262, pressing plate handle; 71263, short shaft;

[0068] 731, first organ protective cover; 732, second organ protective cover; 733, organ protective cover track;

[0069] 8. Diamond wire;

[0070] 9. Silicon rod. DETAILED DESCRIPTION

[0071] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. For example, although the sealing structure of the additional clamping mechanism at the position of the moving port is introduced in this embodiment, this is not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art may adopt other forms of sealing structures. In addition, without introducing a sealing structure, the construction of the chamber has been able to substantially solve the technical problems corresponding to the sealing assembly.

[0072] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0073] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] In addition, in order to better illustrate the present invention, many specific details are given in the following specific embodiments, and those skilled in the art should understand that the present invention can also be implemented without certain specific details. In some examples, the principle of the slicer well known to those skilled in the art is not described in detail in order to highlight the main purpose of the present invention.

[0075] The equipment forms of wire cutting machines mainly include cutters, squarers and slicers. Taking the workpiece to be processed as silicon rods as an example, the cutter is mainly used to cut the longer silicon rods into shorter silicon rods. Specifically, a silicon rod is cut into multiple sections by cutting along the radial direction of the silicon rod. The squarer is mainly used to cut a silicon rod with a circular cross section (such as a round rod) into a silicon rod with a rectangular cross section (such as a square) (such as a square rod). Specifically, the edge of the round rod is removed by cutting along the axial direction of the silicon rod to cut the round rod into a square rod. The slicer is mainly used to cut the square rod that meets the precision standard intensively and continuously along its radial direction by multi-wire cutting to obtain the thin slices to be used. Under normal circumstances, the precision standard is ensured by grinding the edges / sides of the square rod. The utility model is mainly improved for the slicer with a wire mesh.

[0076] Main reference Figure 1 and Figure 5 , Figure 1 A schematic structural diagram of a slicer according to an embodiment of the utility model is shown; Figure 2 A schematic diagram showing the structure of a sealing component in a slicer according to an embodiment of the utility model Figure 1 ; Figure 3A schematic diagram showing the structure of a sealing component in a slicer according to an embodiment of the utility model Figure 2 ; Figure 4 A schematic structural diagram showing a base body in a sealing assembly of a slicer according to an embodiment of the utility model; Figure 5 The schematic diagram of the structure of the threading mechanism of the slicer of one embodiment of the utility model is shown. Figures 1 to 5 As shown, in a possible embodiment, the slicer 100 mainly includes a frame 1, wherein the frame is provided with a first pay-off and retracting mechanism 21 and a second pay-off and retracting mechanism 22 on the left and right sides respectively, the main structure of the first / second pay-off and retracting mechanism is a winding roller, and the diamond wire as a cutting wire can realize the pay-off and retracting function (the pay-off and retracting functions can be interchanged). Wherein, the frame is provided with a cutting mechanism 3 in the cutting area corresponding to the slicer, such as in this example, the cutting mechanism includes a first cutting main roller 31, a second cutting main roller 32 and a third cutting main roller 33 distributed in an inverted triangle, wherein the cutting main rollers (31, 32) are located above the third cutting main roller 33. A first tension mechanism 41 and a second tension mechanism 42 are respectively provided between the third cutting main roller 33 and the first pay-off and retracting mechanism 21 and the second pay-off and retracting mechanism 22, and the pay-off and retracting rollers of the two pay-off and retracting mechanisms are lower than the tension wheels of the tension mechanisms on the same side. In this way, through the reciprocating motion of the diamond wire between the two pay-off and retracting rollers, the tension wheels on the corresponding sides and the cutting mechanism, the silicon rod can be cut along its radial direction to obtain a silicon wafer. Specifically, the diamond wire wound by the retractable and retractable roller in the "release" function is guided to the main roller mechanism composed of the cutting main rollers (31, 32, 33) through the tension wheel on the corresponding side, and then guided to the retractable and retractable roller in the "retract" function through another tension wheel, and the retractable and retractable rollers on both sides alternately retract and release the wire. Based on this, the silicon rod 9 moving downward can be cut by the diamond wire 8 between the cutting main rollers (31, 32) located above. The first tension mechanism 41 and the second tension mechanism 42 are respectively installed on the first linear module 51 and the second linear module 52 fixed on the frame, so as to realize the axial movement of the tension mechanism to adapt to different wire mesh widths. The wire cutting machine also includes two threading mechanisms 6 corresponding to the first tension mechanism 41 and the second tension mechanism 42, one end of the threading mechanism is fixedly connected to the first / second tension mechanism on the corresponding side, and the other end extends into the cutting area. For example, a first wiring groove 61 and a second wiring groove 62 are provided on the threading mechanism 6. In this embodiment, a sealing assembly 7 is respectively arranged at a position of the frame corresponding to the cutting area close to the first / second tension mechanism. As in this example, the frame has a stepped surface 11 at this position, and the sealing assembly is arranged on the inner side of the stepped surface.

[0077] Main reference Figures 2 to 5In a possible embodiment, the sealing assembly 7 includes a substrate 71, which includes an integrally formed side portion 711 and a top portion 712, and the side portion 711, the top portion 712 and the step surface 11 of the frame enclose a chamber. Among them, a moving port 7111 is provided on the side portion 711 of the substrate, and the threading mechanism 6 can move along the moving port. In addition, a moving port with a substantially similar structure is also provided in the vertical area of ​​the step surface, so that the threading mechanism can extend to the cutting area through the two moving ports and move in the area defined by the two. The top surface portion 712 of the substrate is an inclined surface that tilts downward from left to right, so that the cutting fluid in the cutting area can flow down along the inclined surface in time, thereby avoiding the deposition of silicon mud and the like on the top surface portion. For example, a drainage port is provided on the lateral area of ​​the step surface (the bottom of the chamber), and the drainage port is provided with a drainage pipeline that can discharge the cutting fluid on the outside of the bottom of the chamber.

[0078] Main reference Figure 2 and Figure 3 In a possible implementation manner, a first accordion protective cover 731 and a second accordion protective cover 732 are disposed on the moving opening 7111. Figure 2 In the orientation, the first accordion protective cover is located on the left side of the moving opening and the second accordion protective cover is located on the right side of the moving opening, and accordion protective cover tracks 733 that allow the first / second accordion protective cover to slide are arranged on the upper and lower sides of the moving opening. Among them, the left side of the first accordion protective cover is fixed to the position of the base body corresponding to the left side of the moving opening, and the right side of the second accordion protective cover is fixed to the position of the base body corresponding to the right side of the moving opening. The right side of the first accordion protective cover is fixed to the left side of one end of the threading mechanism extending into the cutting area, and the left side of the second accordion protective cover is fixed to the right side of one end of the threading mechanism extending into the cutting area. In this way, as the threading mechanism 6 moves in the moving opening 7111, it can drive the first accordion protective cover and the second accordion protective cover respectively connected thereto to unfold or retract, thereby realizing the sealing of the area corresponding to the moving opening, reducing the probability of problems such as the cutting fluid, silicon mud, etc. thrown out from the cutting area entering the chamber through the moving opening and further entering the winding area.

[0079] However, there is still a possibility that a small amount of cutting fluid or the like may enter the chamber from the gap in the wiring groove. In this case, the cutting fluid can be collected in the chamber and then discharged through the drain port at the bottom of the chamber. In this embodiment, since a pair of accordion protective covers can well block most of the cutting fluid, there is no need to configure an accordion protective cover at the moving port in the vertical area of ​​the step surface. If necessary, a sealing structure that is the same as or different from the accordion protective cover can also be configured for the moving port.

[0080] Main reference Figures 2 to 4In a possible embodiment, a cleaning port 7121 and an observation port 7122 are provided on the top surface portion 712 of the base 71. The cleaning port is mainly used to clean the silicon mud deposited in the chamber during the regular maintenance of the slicer. The observation port is mainly convenient for the operator to observe the condition of the diamond wire in the threading mechanism, the routing of the diamond wire after it is broken, etc. The first cover plate 7123 and the second cover plate 7124 are respectively arranged at the positions corresponding to the cleaning port and the observation port on the top surface portion. Since the cleaning port is used less frequently, the first cover plate is screwed to the top surface portion in this example. The observation port is used more frequently, so the second cover plate is pivotably arranged on the top surface portion in this example. For example, a mounting seat 71251 is provided on the top surface portion, a connecting shaft 71252 is provided on the mounting seat, and the second cover plate is pivotally arranged on the connecting shaft. For example, a second cover plate handle 71241 for easy operation is also provided on the side of the second cover plate away from the connecting shaft. The second cover plate is provided with a pressure plate 71261 as a restraining member, and a pressure plate handle 71262 is provided on the pressure plate. The pressure plate is provided on the observation port 7122 in the following manner: a short axis 71263 is provided on the top surface portion 712, and the pressure plate is pivotally provided on the short axis. Based on this, after the observation port is covered by the second cover plate, the operator holds the pressure plate handle and rotates the pressure plate around the short axis so that the pressure plate abuts against the upper surface of the second cover plate to ensure that the observation port can be reliably blocked. In the case where the second cover plate needs to be opened, the pressure plate is rotated (such as 180°) so that the restraining force corresponding to the abutment is removed. At this time, the operator can hold the second cover plate and rotate it around the connecting axis to open the observation port.

[0081] It can be seen that in the sealing assembly of the utility model, on the basis of constructing a chamber through the base (together with the step surface on the frame), the cutting operation is ensured to be carried out smoothly by setting a moving port corresponding to the threading structure on the base. Under this premise, by configuring an accordion protective cover for the moving port, it can effectively reduce the probability of the cutting liquid, silicon mud, silicon powder agglomerates, etc. thrown out from the cutting area (on the diamond wire) entering the chamber through the moving port and further entering the winding area where the tension mechanism, the winding and unwinding mechanism, etc. are located, and thus reduce the probability of the problem that the slicing efficiency of the slicer is affected or even the risk of the diamond wire breaking due to silicon mud falling on the tension wheel of the tension mechanism, the winding roller of the winding and unwinding mechanism, etc. The small amount of cutting liquid, silicon mud, silicon powder agglomerates, etc. that enter the chamber through the wiring groove of the threading mechanism can be discharged in time through the drainage port at the bottom of the chamber. In this way, the sealing performance of the slicer can be guaranteed by the chamber structure scheme equipped with an accordion protective cover.

[0082] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A wire cutting machine, characterized in that: The wire cutting machine comprises: a frame formed with a cutting area, wherein the cutting area is provided with a cutting mechanism; a tension mechanism disposed on the frame; and A threading mechanism, which is fixedly connected to the tension mechanism on one hand and extends into the cutting area on the other hand; The wire cutting machine also includes: A sealing assembly is arranged at a position of the frame corresponding to the cutting area and close to the tension mechanism, and the sealing assembly comprises: A base body is integrally formed or fixedly connected to the frame, and The base and / or the frame is formed with a cavity, and the wire cutting machine is provided with a moving opening for allowing the threading mechanism to move at a position corresponding to the cavity; The moving port is provided with at least one protective cover to prevent the cutting fluid from entering the chamber from the cutting area and / or from entering the winding area where the tension mechanism is located from the chamber.

2. The wire cutting machine according to claim 1, characterized in that: The protective cover is a flexible protective cover.

3. The wire cutting machine according to claim 2, characterized in that: The flexible protective cover is an accordion protective cover.

4. The wire cutting machine according to claim 3, characterized in that: One end of the accordion protective cover is arranged on the base body and the other end is arranged on the threading mechanism.

5. The wire cutting machine according to claim 4, characterized in that: The organ protective cover comprises a first organ protective cover and a second organ protective cover. Observing along the movement direction of the threading mechanism along the moving opening, the first accordion protective cover and the second accordion protective cover are located on both sides of the threading mechanism.

6. The wire cutting machine according to any one of claims 1 to 5, characterized in that: The frame has a stepped surface, The base includes a top surface portion and a side surface portion, and the step surface, the top surface portion and the side surface portion enclose the cavity.

7. The wire cutting machine according to claim 6, characterized in that: At least a portion of the top surface portion is a non-planar structure.

8. The wire cutting machine according to claim 7, characterized in that: The top surface portion is divided into an inclined surface.

9. The wire cutting machine according to claim 8, characterized in that: A cleaning port and / or an observation port is provided on the top surface portion, and the cleaning port and / or the observation port is provided with a cover plate.

10. The wire cutting machine according to claim 9, characterized in that: The cover plate comprises: A first cover plate is removably disposed on the top surface portion at a position corresponding to the cleaning port; and / or A second cover plate is movably arranged at a position of the top surface portion corresponding to the observation port.

11. The wire cutting machine according to claim 10, characterized in that: The second cover plate is rotatably arranged on the top surface portion; and / or The second cover plate is provided with an operating end.

12. The wire cutting machine according to claim 11, characterized in that: The top surface portion is provided with a mounting seat, the mounting seat is provided with a connecting shaft, and the second cover plate is rotatably arranged on the connecting shaft around the connecting shaft; and / or The second cover plate is provided with a restraining member, and the restraining member is movably provided on the cover plate, so that: based on the movement, the restraining member can restrain / release the second cover plate.

13. The wire cutting machine according to claim 1, characterized in that: The chamber is provided with a drain port.

14. The wire cutting machine according to claim 13, characterized in that: The drain port is arranged at a position corresponding to the bottom of the chamber and / or at a position close to the bottom thereof; and / or The liquid discharge port is provided with a liquid discharge pipeline capable of discharging the cutting liquid.

15. The wire cutting machine according to claim 1, characterized in that: The threading mechanism is provided with a wire routing groove for allowing the cutting wire to pass through. Wherein, the wiring trough is provided with a drainage port; and / or The wiring groove is arranged near the middle of the threading mechanism along the length direction of the threading mechanism. When viewed along the width direction of the threading mechanism, the upper surface of the threading mechanism is a structure that decreases toward both sides from the position corresponding to the wiring groove.

16. The wire cutting machine according to claim 1, characterized in that: The wire cutting machine is a slicer.

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