Spraying control system, cutting assembly and wire cutting machine

Abstract

The utility model provides a spray control system, cutting assembly and wire cutting machine, including control subassembly and two sets of spray subassembly, the two sets of spray subassembly are respectively provided in the cutting chamber corresponding feed mechanism both sides, the control subassembly includes spray control module and main roll steering detection module mutually electrically connected; the spraying control module and the main roller turning direction detection module are arranged in the spraying control system, the two spraying assemblies can be switched to conduct spraying work according to the rotating direction of the main roller, a cutting wire net on the main roller is made to make contact with cutting liquid sprayed by the spraying assemblies all the time before a silicon rod to be cut is cut, and the cutting efficiency of the silicon rod to be cut is improved. Cutting liquid attached to the cutting line net is brought into the cutting line seam by utilizing inertia, so that the use efficiency of the cutting liquid is improved; and the wire jumping or wire breaking risk caused by splashing of the cutting liquid can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting, and particularly to a spray control system, a cutting assembly and a wire cutting machine. Background Art

[0002] In the technical field of wire cutting, a high-speed rotating cutting wire is used to cut materials such as photovoltaic silicon rods, silicon carbide, semiconductors, magnetic materials, sapphires, etc. Taking the slicing of a silicon rod as an example, the silicon rod to be cut is fixed on a feeding mechanism, and the feeding mechanism drives the silicon rod to be cut to move relative to the cutting wire mesh to achieve slicing. During the cutting process, in order to ensure the cutting performance of the cutting wire, cutting fluid needs to be continuously sprayed. The functions of the sprayed cutting fluid are: one is to cool and lubricate the cutting wire, and the other is to wash away silicon powder and the like generated during the cutting process, which is beneficial to improving the cutting quality and efficiency.

[0003] In the prior art, the cutting fluid is sprayed through a spraying device. When the spraying device is in use, the amount of cutting fluid used is large, and the cutting fluid is sprayed onto the high-speed rotating cutting wire mesh, causing violent splashing of the cutting fluid in the cutting chamber. Especially when the observation window is opened to observe the cutting situation, a large amount of cutting fluid will fill the cutting chamber to form water mist, which will affect the observation. In addition, the splashed cutting fluid will also splash out through the observation window, bringing many inconveniences to the staff. Summary of the Utility Model

[0004] In view of the above technical problems, the technical solution of the utility model provides a spray control system, a cutting assembly and a wire cutting machine, which controls the spraying of the cutting fluid according to the rotation direction of the cutting main roller, is beneficial to reducing the degree of splashing of the cutting fluid and improving the spraying effect of the cutting fluid, and at the same time is beneficial to saving the cutting fluid and improving the working environment of the cutting chamber.

[0005] The utility model provides a spray control system, which includes a control component and two groups of spray components. The control component includes a spray control module and a main roller rotation direction detection module that are electrically connected to each other. The two groups of spray components are respectively electrically connected to the spray control module, and the spray control module controls the corresponding spray components to perform forward spray work by receiving the data of the main roller rotation direction detection module.

[0006] Further optimization of the technical solution of the utility model is that a control valve is respectively arranged on each group of spray components, and the control valve is electrically connected to the spray control module.

[0007] Further optimization of the technical solution of the utility model is that each group of spray components includes at least one spraying device, and all the spraying devices are arranged in the cutting chamber through a rotating mounting seat.

[0008] For further optimization of the technical solution of the present utility model, each group of the spray assemblies includes two spray devices, one of the spray devices is arranged on one side of the cutting wire mesh corresponding to the feeding mechanism outside the cutting wire mesh; the other spray device is arranged between two cutting main rollers around which the cutting wire mesh is wound.

[0009] A cutting assembly includes a cutting chamber, a main roller unit, a feeding unit and the spray control system described above. The main roller unit, the feeding unit and the spray assemblies of the spray control system are respectively installed in the cutting chamber.

[0010] For further optimization of the technical solution of the present utility model, a liquid collecting pool is arranged at the bottom of the cutting chamber, and an overflow valve is arranged in the liquid collecting pool. The overflow valve is used to discharge the cutting fluid in the liquid collecting pool to the outside of the cutting device.

[0011] For further optimization of the technical solution of the present utility model, a liquid leakage hopper is further arranged at the bottom of the liquid collecting pool. The liquid leakage hopper is connected with the liquid outlet of the liquid collecting pool through a first filtering device.

[0012] For further optimization of the technical solution of the present utility model, the number of the liquid leakage hoppers is at least one, and all the liquid leakage hoppers are respectively arranged at the bottom of the liquid collecting pool.

[0013] A wire cutting machine includes a cutting fluid circulation system and the spray control system described above or the cutting assembly described above. The cutting fluid circulation system includes a liquid collecting pool, a second filtering device, a heat exchanger and a spray assembly which are connected in sequence. The liquid collecting pool is used to collect the cutting fluid sprayed out by the spray assembly to form a cutting fluid circulation system; the liquid collecting pool is connected with the second filtering device through the liquid outlet end of the liquid leakage hopper.

[0014] For further optimization of the technical solution of the present utility model, a liquid supply branch is further arranged on the liquid conveying pipeline between the liquid leakage hopper and the second filtering device. The liquid supply branch is used to provide new cutting fluid for the cutting fluid circulation system.

[0015] Compared with the prior art, the advantages of the technical solution of the present utility model are as follows:

[0016] 1. By setting up a spray control module and a main roller rotation direction detection module, it is possible to switch between two groups of spray components for spraying operations according to the rotation direction of the main roller, ensuring that the cutting wire mesh always contacts the cutting fluid sprayed by the spray components before entering the rod stock. The cutting fluid attached to the cutting wire mesh is carried into the cutting wire seam by the inertia of the cutting wire mesh movement, thereby improving the utilization efficiency of the cutting fluid. In addition, it can effectively avoid the pollution of the cutting chamber caused by the splashing of the cutting fluid, and at the same time reduce the risk of wire jumping or wire breakage caused by the cutting fluid splashing onto the inner wall of the cutting chamber and splashing back onto the cutting wire mesh, as well as reduce the risk of scratches on the cutting surface, which is beneficial to improving the cutting quality and efficiency.

[0017] 2. By setting an overflow valve in the liquid collection tank and a liquid supply branch in the cutting fluid circulation system, it is possible to control the concentration of silicon powder in the circulating cutting fluid during the cutting process, keeping the cutting fluid in the best working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be described in more detail below based on embodiments with reference to the accompanying drawings.

[0019] Figure 1 is a schematic structural diagram of the cutting assembly in the technical solution of the present utility model;

[0020] Figure 2 is a schematic diagram of the spraying state in the cutting assembly of the technical solution of the present utility model, where FIG. A is a state diagram of the left spray component working when the main roller rotates clockwise; FIG. B is a state diagram of the right spray component working when the main roller rotates counterclockwise;

[0021] Figure 3 is a schematic structural diagram of the cutting fluid circulation system in the technical solution of the present utility model.

[0022] In the accompanying drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0023] Reference Numeral Description:

[0024] 01 - cutting chamber; 02 - main roller unit; 03 - silicon rod to be cut; 04 - feeding mechanism; 05 - debris box; 1 - spraying device; 11 - left spraying device; 12 - right spraying device; 2 - liquid collection tank; 21 - first filtering device; 22 - overflow valve; 23 - liquid leakage hopper; 24 - liquid collection tank; 3 - liquid supply device; 4 - second filtering device; 5 - heat exchanger; 6 - trench; 71 - first liquid supply pump; 72 - second liquid supply pump; 81 - main path flowmeter; 82 - sub-path flowmeter. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] The terms used in the embodiments of the present utility model are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The singular forms of "a", "the" and "said" used in the embodiments of the present utility model and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two, but does not exclude the case of including at least one.

[0027] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such commodity or system. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the said element. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.

[0028] The following will be further described in conjunction with the attached Figure 1-2 to further illustrate the present utility model.

[0029] Taking the slicing of a silicon rod as an example, during the cutting process of the silicon rod 03 to be cut, the main roller unit 02 rotating at a high speed drives the cutting wire to move and directly contact the silicon rod 03 to be cut to achieve cutting. Since heat and silicon powder are generated by the friction between the cutting wire and the silicon rod, in order to ensure the working performance of the cutting wire, cutting fluid is usually sprayed towards the position where the cutting wire contacts the silicon rod 03 to be cut during the processing, so as to cool and lubricate the cutting wire and the silicon rod 03 to be cut, and wash away the silicon powder and other debris generated during the cutting process. In the prior art, the spraying device 1 is generally set in two groups, and the two groups of spraying devices are respectively arranged on both sides of the cutting direction of the silicon rod 03 to be cut and above the main roller unit 02. As the cutting work starts, the two groups of spraying devices start spraying work at the same time. Since the rotation direction of the main roller unit 02 changes alternately, driving the cutting wire to reciprocate at a high speed, the cutting fluid sprayed by the spraying device with the spraying direction the same as the rotation direction of the cutting wire can penetrate into the silicon rod to be cut under the drive of the cutting wire, and the cutting fluid can play a better cooling and lubricating role; however, the cutting fluid sprayed by the spraying device with the spraying direction opposite to the rotation direction of the cutting wire will be driven away from the silicon rod to be cut by the cutting wire mesh, and cannot play a lubricating and cooling role on the cutting wire mesh and the silicon rod to be cut. In addition, the splashed cutting fluid hitting the inner wall of the cutting chamber will splash back to the cutting wire mesh, increasing the risk of wire jumping or wire breakage, and at the same time causing pollution to the cutting chamber.

[0030] To solve this technical problem, the present application provides a spraying control system, including a control component and two groups of spraying components. The two groups of spraying components are respectively arranged on both sides of the cutting direction of the silicon rod 03 to be cut and above the main roller unit 02. The control component includes a spraying control module and a main roller rotation direction detection module that are electrically connected to each other. The main roller rotation direction detection module sends the operation direction information of the main roller unit to the spraying control module, so that the spraying control module controls the corresponding spraying component on the same side as the cutting direction ( "same side as the cutting direction" means the spraying mode when the spraying direction of the spraying component for spraying the cutting fluid is the same as the operation direction of the main roller unit) to work. Always make the cutting wire mesh wound around the main roller unit 02 contact the cutting fluid sprayed by the spraying component before cutting the silicon rod 03 to be cut, and use inertia to bring the cutting fluid attached to the cutting wire mesh into the cutting wire seam, thereby improving the use efficiency of the cutting fluid; at the same time, spraying in the same side as the cutting direction can also reduce the risk of wire jumping or wire breakage caused by the splashing of the cutting fluid; the spraying control module is respectively electrically connected to the control valves arranged on each group of spraying components, and realizes targeted spraying work by adjusting the opening and closing (or the size of the opening) of the control valves. As Figure 2 shown, the specific control method during the cutting process is that when the main roller rotation direction detection module detects the rotation direction of the main roller, it feeds back to the spraying control module, and the spraying control module controls the corresponding group of spraying components to work according to the rotation direction of the main roller. As Figure 2As shown in A, when the main roller rotates clockwise, the spray device 11 on the left side of the feeding mechanism is controlled to work at this time, and the spray device 12 on the right side stops working or sprays with a small flow rate; conversely, as shown in B, the spray device 11 on the left side is closed or adjusted to spray with a small flow rate, so that the spray device 12 on the right side works normally.

[0031] In a preferred embodiment, each group of the spray assemblies includes at least one spray device 1, and all the spray devices 1 are arranged in the cutting chamber 01 through a rotary mounting seat. Specifically, the rotary mounting seat is provided with a positioning screw hole and an arc-shaped adjusting screw hole. When fixing, first fix the rotary mounting seat on the inner wall of the cutting chamber 01 through bolts, then rotate and adjust it to a predetermined position according to the required spraying direction, and then fix it through the fixing bolts arranged in the arc-shaped adjusting screw hole, which can ensure that the cutting fluid just sprays at the position where the cutting wire mesh contacts the silicon rod 03 to be cut. Because when cutting silicon rods 03 to be cut with different widths, the contact positions between the two sides of the silicon rod 03 to be cut and the cutting wire mesh are different. If an adjustment mechanism is not provided, the spraying center will only spray on the cutting wire mesh or on the silicon rod 03 to be cut, reducing the effect of the cutting fluid on the cutting wire seam. Preferably, the number of the spray devices 1 is two, one of the spray devices 1 is arranged on one side of the feeding mechanism 04; the other spray device 1 is arranged below the cutting mechanism, specifically, it can be arranged on the inner wall of the debris box 05. In this way, during the cutting operation, the upper and lower spray devices 1 in the same group of spray assemblies can work simultaneously, effectively improving the spraying effect.

[0032] A wire cutting machine includes a cutting chamber 01, a main roller unit 02, a feeding unit, a cutting fluid circulation system, and the spray control system in the above embodiments. The main roller unit 02, the feeding unit, and the spray assemblies of the spray control system are respectively installed in the cutting chamber 01. The cutting fluid circulation system includes a liquid collecting pool 242, a second filtering device 4, a heat exchanger 5, and a spray device 1 that are connected in sequence. The liquid collecting pool 242 is arranged at the bottom of the cutting chamber 01 to collect the cutting fluid sprayed by the spray device 1 to form a closed-loop system for liquid path circulation; the liquid collecting pool 242 is connected to the second filtering device 4 through the liquid outlet end of the liquid leakage hopper 23, and the number of the liquid leakage hoppers 23 is at least one, and all the liquid leakage hoppers 23 are respectively arranged at the bottom of the liquid collecting pool 242. A first filtering device 21 is arranged between the liquid leakage hopper 23 and the liquid collecting pool 242, and the first filtering device 21 is used to roughly filter the cutting fluid collected in the liquid collecting pool 242.

[0033] As Figure 2In a preferred embodiment, an overflow valve 22 is provided in the liquid collection tank 242. The overflow valve 22 is used to discharge the cutting fluid in the liquid collection tank 242 to the outside of the cutting device. Optionally, the cutting fluid is discharged into the trench 6. A liquid supply branch 31 is also provided on the liquid delivery pipeline between the liquid leakage hopper 23 and the second filtering device 4 (the replaceable liquid supply branch 31 can also be provided on the liquid leakage hopper, or the liquid supply branch 31 can be provided at both places for selective use). The liquid supply branch 31 is connected to a liquid supply device 3 (a liquid supply cylinder or a centralized liquid supply system) to provide new cutting fluid for the cutting fluid circulation system. In this cutting fluid circulation system, a first liquid supply pump 71 for providing liquid delivery power is also provided between the liquid leakage hopper 23 and the second filtering device 4; a second liquid supply pump 72 is provided on the liquid supply branch 31 to provide power for the new cutting fluid to enter the cutting fluid circulation system. In order to achieve precise control of the cutting fluid flow rate in the cutting fluid circulation system, a sub-path flowmeter 82 is provided on the liquid supply branch 31, and a main-path flowmeter 81 is provided between the heat exchanger 5 and the spraying device 1. During use, according to the cutting process, when the silicon powder concentration in the cutting fluid is relatively high, new cutting fluid can be provided for the cutting fluid circulation system through the liquid supply branch 31. At the same time, since the amount of cutting fluid in the circulation pipeline increases, it will accumulate in the liquid collection tank 242 and cause its liquid level to rise, so that the cutting fluid containing silicon powder can be discharged into the trench 6 through the overflow valve 22, achieving the purpose of adjusting the concentration of the cutting fluid in the cutting fluid circulation system. In addition, in order to be able to discharge all the cutting fluid after cutting, a return pipeline 61 is provided between the spraying device 1, the second filtering device 4, the heat exchanger 5, and the liquid leakage hopper and the trench 6. After cutting is completed, by opening the return pipeline 61, the residual cutting fluid in the above-mentioned devices can be discharged.

[0034] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] Although the present utility model has been described with reference to the preferred embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any manner. The present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A sprinkler control system, characterized in that: It includes a control component and two groups of spray components. The control component includes a spray control module and a main roller steering detection module which are electrically connected to each other. The two groups of spray components are electrically connected to the spray control modules respectively, and the spray control module receives data from the main roller steering detection module to control the corresponding spray components to perform spraying work.

2. The sprinkler control system according to claim 1, characterized in that: Each group of the spray components is respectively provided with a control valve, and the control valve is electrically connected to the spray control module.

3. The spray control system according to claim 2, characterized in that: Each group of the spraying components comprises at least one spraying device, and all the spraying devices are arranged in the cutting chamber through a rotating mounting seat.

4. The spray control system according to claim 3, characterized in that: Each group of the spraying components includes two spraying devices, one of which is arranged on the side of the feeding mechanism corresponding to the outside of the cutting wire net; and the other spraying device is arranged between two cutting main rollers around which the cutting wire net is wound.

5. A cutting assembly, characterized in that: It comprises a cutting chamber, a main roller unit, a feeding unit and a spray control system according to any one of claims 1 to 4, wherein the main roller unit, the feeding unit and the spray components of the spray control system are respectively installed in the cutting chamber.

6. The cutting assembly according to claim 5, characterized in that: A liquid collecting pool is arranged at the bottom of the cutting chamber, and an overflow valve is arranged in the liquid collecting pool. The overflow valve is used to discharge the cutting liquid in the liquid collecting pool to the outside of the cutting device.

7. The cutting assembly according to claim 6, characterized in that: A liquid funnel is also provided at the bottom of the liquid collecting tank, and the liquid funnel is connected to the liquid outlet of the liquid collecting tank through a first filtering device.

8. The cutting assembly according to claim 7, characterized in that: The number of the liquid funnel is at least one, and all the liquid funnels are respectively arranged at the bottom of the liquid collecting tank.

9. A wire cutting machine, characterized in that: It includes a cutting fluid circulation system and the spray control system described in any one of claims 1 to 5 or the cutting assembly described in any one of claims 5 to 8, wherein the cutting fluid circulation system includes a liquid collecting tank, a second filter device, a heat exchanger and a spray component connected in sequence, and the liquid collecting tank is used to collect the cutting fluid sprayed by the spray component to form a cutting fluid circulation system; the liquid collecting tank is connected to the second filter device through the liquid outlet end of the funnel.

10. The wire cutting machine according to claim 9, characterized in that: A liquid supply branch is also provided on the liquid delivery pipeline between the liquid funnel and the second filter device, and the liquid supply branch is used to provide new cutting liquid to the cutting liquid circulation system.

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