Supporting tool for cutting off crystal bar

Abstract

The utility model relates to the technical field of crystal bar processing equipment, and provides a supporting tool for cutting off a crystal bar, which comprises a wheel carrier fixedly connected to a cutting machine and positioned below a cutting diamond wire, and the top of the wheel carrier is provided with a pair of inclined plates in a splayed structure; the two rows of rollers are symmetrically connected to the outer side of the inclined plate to form a V-shaped area for supporting a crystal bar; wherein each roller comprises a mandrel, a bearing and a bearing seat, the mandrel is T-shaped and sequentially penetrates through the bearing embedded into the bearing seat and the bearing seat to be connected with the inclined plate, and a polyurethane rubber sleeve is wrapped outside the bearing seat. Compared with the prior art, the polyurethane rubber sleeve is good in wear resistance, high in strength and not prone to damage and falling off, the supporting effect on the crystal bar can be enhanced, and the quality of the cut crystal bar is guaranteed; meanwhile, the polyurethane rubber sleeve can effectively prolong the service life of the roller, so that the replacement and maintenance frequency is reduced, and the failure rate of the guillotine shear is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of crystal rod processing equipment, in particular to a supporting tool for cutting a crystal rod. Background Art

[0002] After the silicon single crystal and polycrystalline silicon for solar cells are pulled, the single crystal square silicon rod with smooth surface needs to be processed through three processes: truncation, squaring and grinding. Among them, the truncation process can cut the long single crystal rod (up to 6 meters long) into a standard length that meets the requirements of subsequent processing equipment. This will inevitably produce some non-standard length crystal rods that cannot be directly processed on the machine. If they are directly used as recycled materials, it will be too wasteful. Therefore, in order to reduce costs, these non-standard length crystal rods need to be spliced ​​into a standard length rod through a gluing process before processing.

[0003] Before gluing, the crystal rod needs to be placed on a cutting machine for re-cutting. On the one hand, this can match the standard length after gluing and splicing, and on the other hand, the end face of the crystal rod (i.e. the gluing surface) can be trimmed to ensure the perpendicularity of the surface with its axis. Otherwise, the crystal rods will be misaligned or tilted during splicing, thereby increasing the risk of breakage during subsequent processing.

[0004] At present, the re-cutting of the crystal ingot is mainly done by manually placing it on the roller of the cutter and pushing it to the appropriate position. The axis of the crystal ingot is kept vertical to the cutting diamond wire under the support of the roller of the roller. Then a wooden wedge is inserted between the roller of the roller and the crystal ingot to stabilize the crystal ingot. Finally, the start button of the cutter is pressed to complete the cutting operation. However, the existing roller has the following problems:

[0005] 1. During the cutting process, the outer rubber coating of the roller falls off due to frequent damage, causing the crystal rod to tilt horizontally. The diamond wire will produce an inclined surface on the cutting section during cutting, causing the crystal rod to contact the roller bearing during subsequent transportation and collapse the edge, making it impossible to guarantee the quality of the crystal rod after cutting;

[0006] 2. The replacement and repair time of the roller with the rubber coating falling off is long, resulting in a high failure rate of the cutting machine (low normal start-up rate);

[0007] 3. The roller spacing in the cutting section is large, resulting in less contact area between the crystal rod, especially the shorter crystal rod, and the roller (that is, the crystal rod cannot be effectively supported by the roller). The crystal rod is prone to shaking and has poor stability during cutting, affecting the processing quality of the crystal rod. Utility Model Content

[0008] In view of the deficiencies in the prior art, the utility model provides a supporting tool for cutting a crystal rod, which adopts a roller wrapped with a polyurethane rubber sleeve to support the crystal rod, so as to solve the problems existing in the prior art.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A supporting tool for cutting a crystal rod, comprising:

[0011] The wheel frame is fixedly connected to the cutting machine and is located below the cutting diamond wire, and a pair of inclined plates in an eight-shaped structure are provided on the top of the wheel frame; and

[0012] Rollers, provided in two rows, symmetrically connected to the outer sides of the inclined plates to form a V-shaped area for supporting the crystal rod;

[0013] Each of the rollers comprises a core shaft, a bearing and a bearing seat. The core shaft is T-shaped and passes through the bearing embedded in the bearing seat and the bearing seat in sequence and then is connected to the inclined plate. The outside of the bearing seat is covered with a polyurethane rubber sleeve.

[0014] In one embodiment disclosed in the present application, one end of the mandrel away from the bearing is a stud;

[0015] The stud is threadedly connected to the threaded hole provided on the inclined plate.

[0016] In one embodiment disclosed in the present application, the bearing seat is connected to an end cover via a pair of locking screws;

[0017] The end cover is provided with a pressure ring to press the bearing tightly onto the annular step inside the bearing seat.

[0018] In one embodiment disclosed in the present application, the wheel frame is divided into a cutting area and a non-cutting area along the length direction of the inclined plate;

[0019] The density of the rollers arranged on the inclined plate corresponding to the cutting area is greater than the density of the rollers arranged on the inclined plate corresponding to the non-cutting area.

[0020] In one embodiment disclosed in the present application, five rollers are arranged at equal intervals on the inclined plate corresponding to the cutting area;

[0021] Four rollers are arranged at equal intervals on the inclined plate corresponding to the non-cutting area.

[0022] In one embodiment disclosed in the present application, the bottom of the wheel frame is a U-shaped base integrally formed with the inclined plate;

[0023] A plurality of waist-shaped holes are provided in the middle of the U-shaped base along the length direction of the inclined plate;

[0024] The U-shaped base is fixedly connected to the cutting machine via bolts passing through the waist-shaped holes.

[0025] In one embodiment disclosed in the present application, two waist-shaped holes are respectively provided on the U-shaped base corresponding to the cutting area and the non-cutting area.

[0026] In one embodiment disclosed in the present application, a plurality of rib plates are connected inside the U-shaped base;

[0027] Each of the rib plates is arranged along the vertical direction of the inclined plate.

[0028] Compared with the prior art, the beneficial effects of the utility model are:

[0029] 1. The polyurethane rubber sleeve has good wear resistance, high strength, and is not easy to be damaged or fall off. It can enhance the support effect on the crystal rod and ensure the quality of the crystal rod after cutting. At the same time, the polyurethane rubber sleeve can effectively extend the service life of the roller, thereby reducing the number of replacement and maintenance times and reducing the failure rate of the cutting machine.

[0030] 2. Compared with the non-cutting area, the roller arrangement density in the cutting area is large and the number is large, which can increase the area of ​​the crystal rod being effectively supported to improve its stability during the cutting process and reduce the crystal rod shaking caused by the cutting force, thereby ensuring the processing quality of the crystal rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0033] Figure 2 is a schematic diagram of the three-dimensional structure of the wheel frame;

[0034] Figure 3 Schematic diagram of the explosion structure of the roller. DETAILED DESCRIPTION

[0035] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0041] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0042] See also Figure 1 to Figure 3 As shown, the utility model provides a support tool for cutting a crystal rod, comprising:

[0043] The wheel frame 100 is fixedly connected to the cutting machine (not shown in the figure) and is located below the cutting diamond wire. A pair of inclined plates 110 in an "eight" structure are provided on the top of the wheel frame 100; and

[0044] Rollers 200 are provided in two rows and are symmetrically connected to the outside of the inclined plate 110 to form a V-shaped area for supporting the crystal rod;

[0045] Each roller 200 includes a core shaft 210, a bearing 220 and a bearing seat 230. The core shaft 210 is T-shaped and passes through the bearing 220 and the bearing seat 230 in sequence and then is connected to the inclined plate 110. The bearing seat 230 is covered with a polyurethane rubber sleeve 240. Compared with the prior art, the polyurethane rubber sleeve 240 has good wear resistance, high strength, is not easy to be damaged or fall off, can enhance the support effect on the crystal rod, and ensure the quality of the crystal rod after cutting; at the same time, the polyurethane rubber sleeve 240 can effectively extend the service life of the roller 200, thereby reducing the number of replacement and maintenance times and reducing the failure rate of the cutting machine.

[0046] One end of the mandrel 210 away from the bearing 220 is a stud 211, and the stud 211 is threadedly connected to the threaded hole 111 provided on the inclined plate 110. The threaded connection makes it easy to disassemble and assemble the roller 200.

[0047] In order to prevent dust from entering the bearing 220 and accelerating its wear, the bearing seat 230 is connected to the end cover 260 through a pair of locking screws 250. The end cover 260 is provided with a pressure ring 261 to press the bearing 220 onto the annular step inside the bearing seat 230.

[0048] The wheel frame 100 is divided into a cutting area and a non-cutting area along the length direction of the inclined plate 110. The density of the rollers 200 arranged on the inclined plate 110 corresponding to the cutting area is greater than the density of the rollers 200 arranged on the inclined plate 110 corresponding to the non-cutting area. Specifically, the cutting area is directly opposite to the cutting diamond wire and is located in the front section, and the non-cutting area is located in the rear section. Compared with the non-cutting area, the rollers 200 in the cutting area are arranged in a high density and in large numbers, which can increase the area of ​​the crystal rod being effectively supported to improve its stability during the cutting process, reduce the shaking of the crystal rod caused by the cutting force, and thus ensure the processing quality of the crystal rod.

[0049] In this embodiment, five rollers 200 are arranged at equal intervals on the inclined plate 110 corresponding to the cutting area, and four rollers 200 are arranged at equal intervals on the inclined plate 110 corresponding to the non-cutting area.

[0050] The bottom of the wheel frame 100 is a U-shaped base 120 integrally formed with the inclined plate 110. A plurality of waist-shaped holes 121 are provided in the middle of the U-shaped base 120 along the length direction of the inclined plate 110. The U-shaped base 120 is fixedly connected to the cutting machine by bolts passing through the waist-shaped holes 121. By loosening the bolts, the position of the supporting fixture can be adjusted along the length direction of the inclined plate 110 so that the feeding path of the diamond wire avoids the roller 200.

[0051] In this embodiment, two waist-shaped holes 121 are respectively formed on the U-shaped base 120 corresponding to the cutting area and the non-cutting area.

[0052] In order to improve the strength of the supporting tool, a plurality of rib plates 130 are connected to the interior of the U-shaped base 120 , and each rib plate 130 is arranged along the vertical direction of the inclined plate 110 .

[0053] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.

Claims

1. A support tool for cutting a crystal rod, characterized in that: include: The wheel frame is fixedly connected to the cutting machine and is located below the cutting diamond wire, and a pair of inclined plates in an eight-shaped structure are provided on the top of the wheel frame; and Rollers, provided in two rows, symmetrically connected to the outer sides of the inclined plates to form a V-shaped area for supporting the crystal rod; Each of the rollers comprises a core shaft, a bearing and a bearing seat. The core shaft is T-shaped and passes through the bearing embedded in the bearing seat and the bearing seat in sequence and then is connected to the inclined plate. The outside of the bearing seat is covered with a polyurethane rubber sleeve.

2. The support tool for cutting the crystal ingot according to claim 1, characterized in that: One end of the mandrel away from the bearing is a stud; The stud is threadedly connected to the threaded hole provided on the inclined plate.

3. The support tool for cutting the crystal ingot according to claim 1, characterized in that: The bearing seat is connected with an end cover via a pair of locking screws; The end cover is provided with a pressure ring to press the bearing tightly onto the annular step inside the bearing seat.

4. The support tool for cutting a crystal ingot according to any one of claims 1 to 3, characterized in that: The wheel frame is divided into a cutting area and a non-cutting area along the length direction of the inclined plate; The density of the rollers arranged on the inclined plate corresponding to the cutting area is greater than the density of the rollers arranged on the inclined plate corresponding to the non-cutting area.

5. The support tool for cutting the crystal ingot according to claim 4, characterized in that: The cutting area corresponds to an inclined plate with 5 rollers arranged at equal intervals; Four rollers are arranged at equal intervals on the inclined plate corresponding to the non-cutting area.

6. The support tool for cutting the crystal ingot according to claim 4, characterized in that: The bottom of the wheel frame is a U-shaped base formed integrally with the inclined plate; A plurality of waist-shaped holes are provided in the middle of the U-shaped base along the length direction of the inclined plate; The U-shaped base is fixedly connected to the cutting machine via bolts passing through the waist-shaped holes.

7. The support tool for cutting a crystal ingot according to claim 6, characterized in that: Two waist-shaped holes are respectively provided on the U-shaped base corresponding to the cutting area and the non-cutting area.

8. The support tool for cutting a crystal ingot according to claim 6 or 7, characterized in that: The U-shaped base is internally connected with a plurality of rib plates; Each of the rib plates is arranged along the vertical direction of the inclined plate.

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