Main roller for multi-wire cutting and wire cutting machine
By setting multiple spiral extension wire grooves on the main roller, the problems of low utilization rate and frequent replacement of the main roller of the wire cutting machine are solved, and the multi-product cutting and equipment life are extended, reducing production costs and labor intensity.
Patent Information
- Application Number
- CN202420632908.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-29
AI Technical Summary
Due to the low surface utilization of the main rollers, existing wire cutting machines have increased production costs, and frequent replacement of main rollers reduces equipment life, increases labor intensity and wear.
A multi-wire cutting main roller is designed, with multiple wire grooves extending spirally in the axial direction on the main roller, with equal groove distances, supporting cutting of multiple products, reducing the frequency of main roller replacement, and improving utilization and applicability.
The same set of main rollers can realize the processing of multiple products, reduce production costs, reduce the frequency of main roller replacement, extend the service life of the equipment, and improve the applicability and utilization of main rollers.
Smart Images
Figure CN222135498U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of wire cutting, and specifically provides a main roller and a wire cutting machine for multi-wire cutting. Background Art
[0002] Wire cutting is a processing method in which the cutting wire reciprocates at high speed and moves relative to the workpiece to be cut (such as photovoltaic silicon rods, semiconductors, silicon carbide, sapphire, magnetic materials, etc.) to make the cutting wire cut the workpiece to be cut.
[0003] The main roller is the main component of the wire cutting machine. The side surface of the main roller is provided with a wire groove. By winding the cutting wire in the wire groove, the main roller drives the cutting wire to move to achieve cutting of the workpiece to be cut. However, in actual applications, due to the difference in thickness required by the products to be cut, when the wire groove of the main roller is too wide, the utilization rate of the main roller will be affected, and the life of the cutting equipment will be reduced due to frequent replacement of the cutting main roller, thereby increasing production costs.
[0004] Accordingly, the art needs a new technical solution to solve the above problems. Summary of the invention
[0005] The present application aims to solve the above technical problem, that is, to solve the problem of increased production cost due to low main roller surface utilization of the existing wire cutting machine.
[0006] In a first aspect, the present application provides a main roller for multi-wire cutting, the main roller comprising a main roller body and a plurality of wire grooves opened on the side surface of the main roller body, each of the wire grooves extending in a spiral manner along the axial direction of the main roller body, and the groove pitches of the plurality of wire grooves are equal.
[0007] When the above technical solution is adopted, in the actual cutting process, each wire groove can be cut into different products, so that the same set of main roller bodies can be used to process multiple products, thereby improving the utilization rate of the main rollers and reducing costs. At the same time, since the same set of main roller bodies can be used to cut multiple products, there is no need to frequently replace the main rollers for cutting different products, which can not only reduce the labor intensity caused by replacing the main rollers, but also reduce the wear of the main rollers on the wire cutting machine due to the reduced frequency of main roller replacement.
[0008] In a technical solution of the main roller, the distance between each two adjacent wire grooves is equal.
[0009] When the above technical solution is adopted, the wire grooves are evenly distributed along the axial direction of the main roller body, which not only makes the spatial distribution more reasonable, but also can maximize the strength of the side surface of the main roller body to stably support the cutting line.
[0010] In a technical solution of the main roller, the groove types of the plurality of wire grooves are the same.
[0011] When the above technical solution is adopted, products of different thicknesses can be cut according to demand, thereby improving the applicability of the main roller.
[0012] In a technical solution of the main roller, the number of the wire grooves is two, and the groove types of the two wire grooves are different; or
[0013] The number of the wire troughs is greater than or equal to three, and at least two of the wire troughs have different groove types.
[0014] When the above technical solution is adopted, the type or size of the cutting line can be selected according to the different types of parts to be cut, so as to meet the cutting requirements of different products and improve the applicability of the main roller.
[0015] In a technical solution of the main roller, the wire groove is a V-shaped groove.
[0016] When the above technical solution is adopted, a specific structural form of the wire duct is provided.
[0017] In a technical solution of the main roller, the opening angle of the V-shaped groove is 60°-90°.
[0018] When the above technical solution is adopted, the wire trough can stably support the cutting wire.
[0019] In a technical solution of the main roller, the main roller body includes a roller core and a coating layer arranged on the outer surface of the roller core, and the wire groove is opened on the coating layer.
[0020] When the above technical solution is adopted, a specific structural form of the main roller body is provided, the roller core can ensure the structural strength and structural rigidity of the entire main roller body, and the coating layer can reduce the wear of the wire groove edge on the cutting wire.
[0021] In a technical solution of the above main roller, the coating layer is made of polyurethane or polyethylene.
[0022] When the above technical solution is adopted, two specific materials of the coating layer are provided so that they can be selected according to actual needs during the processing.
[0023] In a second aspect, the present application provides a wire cutting machine, the wire cutting machine comprising:
[0024] Cutting room; and
[0025] A plurality of main rollers as described in any one of the first aspects, wherein the plurality of main rollers are arranged in the cutting chamber.
[0026] In a technical solution of the above-mentioned wire cutting machine, the wire cutting machine is a slicer. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, in which:
[0028] Figure 1 It is a schematic diagram of the existing main roller structure given in the embodiment of the present application;
[0029] Figure 2 is a schematic diagram of a main roller for multi-wire cutting according to an embodiment of the present application;
[0030] Figure 3 According to one embodiment of the present application, Figure 2 Schematic diagram after the first wire slot is hidden;
[0031] Figure 4 yes Figure 2 A partial enlarged view of part A.
[0032] Reference numerals list :
[0033] 1. Main roller body; 11. Roller core; 12. Coating layer; 100. First wire groove; 110. First cutting line; 200. Second wire groove; 210. Second cutting line. DETAILED DESCRIPTION
[0034] The preferred embodiments of the present application 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 application and are not used to limit the scope of protection of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.
[0035] It should be noted that in the description of this application, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the relevant devices or components must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on this application. In addition, the ordinal numbers "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0036] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installation" 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0037] In order to facilitate understanding of the technical solution of the present application, some terms involved in the present application are first explained here.
[0038] Groove pitch: the distance between the bottoms of adjacent grooves of the groove along the axis of the main roller (since the groove is arranged in a spiral, the groove pitch can also be understood as the pitch of the spiral line).
[0039] Edge material: the material at the end of the piece to be cut.
[0040] Wire mesh: During the wire cutting process, when the edge of the workpiece to be cut is in contact with the cutting wire, the relative movement of the cutting wire and the workpiece to be cut will cause the cutting wire at this position to be subjected to greater friction resistance, which may lead to wire breakage. Therefore, in order to avoid the wear of the cutting wire by the edge of the workpiece to be cut, it is necessary to vacate the slots close to the edge of the workpiece by rearranging the wire mesh to form an empty area, so that the edge of the workpiece during the cutting process is located in the empty area, thereby avoiding direct contact between the edge of the workpiece and the cutting wire.
[0041] For wire cutting, the thickness of different products after cutting and forming determines the pitch of the wire groove on the main roller. For example, the thickness of semiconductor silicon wafers is about 0.15mm to 2mm, the thickness of sapphire crystals is about 0.5mm to 2mm, the thickness of semiconductor multi-wire cutting master alloy is about 4.0 to 10mm, and the thickness of magnetic material cutting can reach 10 to 20mm. In the prior art, a wire groove is usually provided on the same main roller, and the wire groove extends in a spiral along the axial direction of the main roller. Therefore, the thicker the thickness of the product to be formed, the wider the pitch of the wire groove. At this time, the vacant area between adjacent pitches will not be used, resulting in waste of main roller materials.
[0042] On the other hand, since there is only one wire groove on the same main roller, when it is necessary to cut products of different thicknesses during the wire cutting process, the main roller needs to be replaced. Frequent replacement of the main roller will increase the gap between the end of the main roller and the sleeve, resulting in matching problems, thereby reducing the service life of the cutting equipment. In addition, the service life of the main roller is basically fixed, so the method of setting a wire groove on one main roller will also lead to more regular replacement due to the life span of the main roller.
[0043] As mentioned above, no matter from the perspective of the main roller surface utilization rate or the main roller service life, the above method will increase the production cost.
[0044] Reference Figure 1 , is a schematic diagram of an existing main roller structure given in this application, in which only one wire groove is provided on the main roller, and the wire groove extends in a spiral manner along the axial direction of the main roller. Along the axial direction of the main roller, an empty area is formed between adjacent grooves of the wire groove. The larger the groove pitch, the wider the empty area. Figure 1 The wire slot in the embodiment is called the first wire slot 100.
[0045] Reference Figure 2 , is a main roller for multi-wire cutting disclosed in the embodiment of the present application ( Figure 1 and Figure 2 The main roller is installed on the wire cutting machine (see Figure 2), which includes a main roller body 1 and a plurality of wire grooves opened on the side surface of the main roller body 1. The plurality of wire grooves are independently arranged, and each wire groove extends in a spiral manner along the axial direction of the main roller body 1.
[0046] The main roller body 1 includes a roller core 11 and a coating layer 12 arranged on the outer surface of the roller core 11. The coating layer 12 completely wraps the roller core 11 in the circumferential direction, and the wire groove is opened on the coating layer 12. The roller core 11 can be made of metal materials such as iron core to support the coating layer 12 and ensure the structural strength of the main roller body 1. The coating layer 12 can be made of polyurethane, polyethylene and other materials to support the cutting line. The Shore hardness of the coating layer 12 can be selected to be 95 to 98 degrees.
[0047] As an implementation method of this application, Figure 2 For example, two wire grooves are provided on the main roller body 1. It should be noted that for actual processing, Figure 2 The main roller shown can be understood as being Figure 1 The further processing is based on Figure 2 The two wire grooves are the first wire groove 100 and the second wire groove 200, and the second wire groove 200 is processed in the vacant area between the adjacent grooves of the first wire groove 100. Thus, it can be concluded without a doubt that in order to avoid the second wire groove 200 from interfering with the first wire groove 100, the groove pitch of the second wire groove 200 and the first wire groove 100 must be equal.
[0048] It should be understood that, although in the above implementation of the present application, an example of processing one wire groove on the vacant area of the main roller body 1 is used for explanation, that is, two wire grooves are provided on the main roller body 1. However, in actual applications, based on the first wire groove 100, if the groove pitch of the first wire groove 100 is wide enough, then according to actual needs, two or more wire grooves can be processed in the vacant area, and the specific number of wire grooves can be reasonably adjusted according to the actual size and operation requirements, and the present application does not limit this. However, no matter how many wire grooves are on the main roller body 1, it is necessary to ensure that the groove pitches of multiple wire grooves are equal.
[0049] Reference Figure 3 , which is given in the embodiments of this application Figure 2 Schematic diagram of the first wire slot 100 after being hidden, then Figure 2 The main roller shown can be understood as Figure 1 and Figure 3 Thus, it can be understood that by simultaneously providing the first wire groove 100 and the second wire groove 200 on the main roller body 1, different products can be cut out through the first wire groove 100 and the second wire groove respectively, thus realizing "one roller for two purposes".
[0050] Reference Figure 2 , showing the state where cutting lines are arranged in both the first wire trough 100 and the second wire trough 200, but for actual processing, it is generally adopted to arrange the first cutting line 110 only in the first wire trough 100 to process the first product, or to arrange the second cutting line 210 only in the second wire trough 200 to process the second product (the method of arranging the cutting lines in the first wire trough 100 and the second wire trough 200 at the same time will be described in detail below).
[0051] The present application opens a plurality of wire grooves on the main roller body 1. Specifically, in actual processing, one wire groove can be processed first, and based on the processed wire groove, other wire grooves can be processed in the vacant area of the main roller body 1. In this way, in actual cutting processing, each wire groove can be cut and formed into different products, so that the processing of multiple products can be achieved through the same set of main roller bodies 1, the utilization rate of the main rollers is improved, and the cost is reduced. At the same time, since the same set of main roller bodies 1 can achieve the cutting of multiple products, there is no need to frequently replace the main rollers for cutting different products, which can not only reduce the labor intensity caused by replacing the main rollers, but also reduce the wear of the main rollers on the wire cutting machine due to the reduced frequency of main roller replacement.
[0052] On the other hand, in a specific application scenario of wire cutting, when the edge of the piece to be cut just touches the cutting line near it, in order to avoid wire breakage, a wire splitting net operation is generally required. Although the area where the edge is located is vacated by the wire splitting net, when the groove spacing of the wire groove on the main roller is wide, the cutting line crosses the groove too wide, so that the edge of the wire groove causes oblique wear on the cutting line during the cutting process, which may cause fatigue fracture of the cutting line. The present application sets multiple wire grooves on the main roller body 1. When encountering the above situation, it is only necessary to move the cutting line close to the edge of the piece to be cut to the adjacent vacant wire groove. In this way, not only the wire splitting net operation is omitted and the process is simplified, but also the possibility of wire breakage caused by the excessively wide oblique span of the cutting line can be effectively reduced.
[0053] Reference Figure 4 As an implementation of the present application, the distance between each two adjacent wire grooves is equal, and the distance between the two wire grooves refers to the distance between adjacent grooves of two adjacent wire grooves along the axis direction of the main roller body 1. Figure 4 In the example, two wire grooves are provided on the main roller body 1. The groove pitch of the first wire groove 100 and the second wire groove 200 are both P, so the distance between the adjacent grooves of the first wire groove 100 and the second wire groove 200 is P / 2. Of course, it can be understood that when three wire grooves are provided on the main roller body 1, the distance between the adjacent grooves of two adjacent wire grooves is P / 3. In this way, through the above-mentioned setting, the wire grooves are evenly distributed along the axial direction of the main roller body 1, so that not only the spatial distribution is more reasonable, but also the strength of the side surface of the main roller body 1 can be guaranteed to the maximum extent to stably support the cutting line.
[0054] In some implementations of the present application, for each wire groove on the main roller body 1, the groove type of each wire groove can be all the same, all different, or partially different. The same groove type means that the shape and size of the wire groove along the axial section of the main roller body 1 are exactly the same.
[0055] For example, in one embodiment, the groove types of all the wire grooves are the same. When the groove types of all the wire grooves are the same, in the actual cutting process, the cutting line can be arranged in only one of the wire grooves to cut out a product of a specific thickness, or the cutting line can be arranged in multiple wire grooves at the same time to cut out a thinner product. Therefore, when the groove types of all the wire grooves are the same, products of different thicknesses can be cut according to demand, thereby improving the applicability of the main roller. In addition, since the groove types of all the wire grooves are the same, multiple wire grooves can be used universally, that is, different wire grooves can be used to process the same product.
[0056] In addition, when the groove types of each wire groove are the same, a single-axis multi-head tool can be used to achieve synchronous processing of multiple wire grooves during the grooving process. In this way, the distance between adjacent wire grooves can be more accurately controlled to improve the processing accuracy. In addition, considering that there is a precision error in the processing of each wire groove in the grooving process, when the main roller body 1 is long or the distance between adjacent wire grooves is small, the accumulation of processing errors may cause cross-interference of adjacent grooves at the tail end of the main roller body 1, which will inevitably lead to failure of the grooving of the main roller. When the above method is adopted, the above precision error can be greatly reduced, thereby improving the yield of the main roller grooving process.
[0057] For another example, in another embodiment, at least two wire troughs have different groove types. Figure 2 In the embodiment shown, there are only two wire grooves on the main roller body 1, so naturally, the groove types of the two wire grooves are different. When the number of wire grooves is greater than or equal to three, the above "at least two wire grooves have different groove types" means that the groove types of each wire groove can be partially different or completely different. In this way, since the groove types of each wire groove are different, the type or size of the cutting line can also be selected according to the different types of the parts to be cut, so as to meet the needs of cutting different products and improve the applicability of the main roller.
[0058] Reference Figure 4 In one implementation of the present application, the wire groove is a V-shaped groove, that is, the cross-sectional shape of the wire groove is "V"-shaped in the axial section along the main roller body 1. Optionally, in order to enable the wire groove to stably support the cutting wire, the opening angle of the V-shaped groove is 60°-90°.
[0059] It should be noted that although the present application describes the wire groove as being V-shaped, it does not constitute a limitation to the present application. For example, in some other implementation forms, the cross-section of the wire groove along the axial direction of the main roller body 1 can also be U-shaped, semicircular, trapezoidal, etc.
[0060] The present application also discloses a wire cutting machine, which includes a cutting chamber and a main roller in any of the above embodiments, wherein a plurality of main rollers are arranged in parallel in the cutting chamber so that the cutting wire can be arranged between the plurality of main rollers to form a wire net. The cutting chamber includes a cutting frame, a cutting fluid system, and a driving device for driving the main roller to rotate, etc., which are well-known technologies in the art and are not described in detail in the present application.
[0061] In some embodiments of the present application, the wire cutting machine is a slicer.
[0062] So far, the technical solutions of the present application have 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 application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, 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 application.
[0063] It should be noted that the above preferred implementations are only used to illustrate the principles of the present application and are not intended to limit the scope of protection of the present application. Without departing from the principles of the present application, those skilled in the art may adjust the above settings so that the present application can be applied to more specific application scenarios.
[0064] Of course, the above-mentioned replaceable implementations, as well as the replaceable implementations and the preferred implementations, can be used in a cross-coordinated manner to combine new implementations to suit more specific application scenarios.
Claims
1. A main roller for multi-wire cutting, characterized in that: The main roller comprises a main roller body and a plurality of wire grooves opened on the side surface of the main roller body, each of the wire grooves extends in a spiral manner along the axial direction of the main roller body, and the groove pitches of the plurality of wire grooves are equal.
2. The main roller according to claim 1, characterized in that The distances between any two adjacent wire grooves are equal.
3. The main roller according to claim 1, characterized in that The groove shapes of the plurality of wire grooves are the same.
4. The main roller according to claim 1, characterized in that The number of the wire troughs is two, and the two wire troughs have different groove types; or The number of the wire troughs is greater than or equal to three, and at least two of the wire troughs have different groove types.
5. The main roller according to any one of claims 1 to 4, characterized in that The wire groove is a V-shaped groove.
6. The main roller according to claim 5, characterized in that The opening angle of the V-shaped groove is 60°-90°.
7. The main roller according to claim 1, characterized in that The main roller body comprises a roller core and a coating layer arranged on the outer surface of the roller core, and the wire groove is opened on the coating layer.
8. The main roller according to claim 7, characterized in that The coating layer is made of polyurethane or polyethylene.
9. A wire cutting machine, characterized in that: The wire cutting machine comprises: Cutting room; and A plurality of main rollers according to any one of claims 1 to 8, wherein the plurality of main rollers are arranged in the cutting chamber.
10. The wire cutting machine according to claim 9, characterized in that: The wire cutting machine is a slicer.