A support mechanism for cutting off the special-shaped head of silicon rod and its unloading device

Abstract

The present invention relates to a support mechanism for cutting off the irregular head of a silicon rod, comprising a first support unit and a second support unit. The first support unit can move along a silicon rod processing platform toward the head end of the silicon rod to support the irregular head at the head end of the silicon rod. The second support unit is fixedly connected to the first support unit to support the bottom end of the irregular head. The first support unit and the second support unit can slide together relative to the silicon rod support platform to move toward the head end of the silicon rod until the first support unit abuts against the end face of the head end of the silicon rod to support from one end of the silicon rod, and the second support unit supports the bottom end of the irregular head at the head end of the silicon rod. The common support of the two cooperates with the cutting head to cut the irregular head of the silicon rod, without manual support, thereby improving the material cutting efficiency, and compared with manual material cutting, the support is convenient and the support effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of silicon workpiece processing equipment, and in particular to a supporting mechanism for cutting off a special-shaped head of a silicon rod and a feeding device thereof. Background Art

[0002] The forming of silicon rods includes the growth of silicon rods, that is, the single crystal silicon is in a molten state inside the single crystal, and the molten single crystal silicon is pulled and cooled by a pulling head to form a silicon rod.

[0003] Since the silicon rod is formed by drawing, the front end of the silicon rod is very likely to become conical during the drawing process, and the conical head is named the special-shaped head of the silicon rod. However, in the later truncation process of the silicon rod, the special-shaped head of the silicon rod needs to be removed to meet the needs of subsequent truncation of the silicon rod into silicon rods of different lengths for subsequent processing.

[0004] However, currently, the removal of the irregular head of the silicon rod is generally done by manually inserting a wedge under the irregular head, padding the irregular conical surface, and then cutting the irregular head, and the manual support effect is poor. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a support mechanism and a feeding device for cutting off the special-shaped head of a silicon rod, which solves the technical problem that the special-shaped head of the silicon rod is generally removed manually by inserting a wedge block under the special-shaped head, padding the special-shaped conical surface and then cutting the special-shaped head, resulting in poor manual support effect.

[0007] (II) Technical solution

[0008] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0009] A support mechanism for cutting off a silicon rod with a special-shaped head, comprising a first support unit and a second support unit;

[0010] The first supporting unit can move along the silicon rod processing platform toward the head end of the silicon rod to support the special-shaped head at the head end of the silicon rod;

[0011] The second supporting unit is fixedly connected to the first supporting unit to support the bottom end of the special-shaped head.

[0012] Optionally, the first support unit includes a support base, a support connecting rod and a head support sleeve;

[0013] The support base is slidably connected to the silicon rod processing platform, and the support base is connected to the head support sleeve through the support connecting rod.

[0014] Optionally, the first supporting unit further comprises a rotating cylinder;

[0015] The rotating cylinder is fixedly installed in the inner cavity of the supporting base, and the output end of the rotating cylinder is fixedly connected to the supporting connecting rod. The rotating cylinder can make the supporting connecting rod rotate along the axis of its output shaft to drive the head supporting sleeve to rotate.

[0016] Optionally, the second support unit includes a bottom support block and a vertical adjustment structure;

[0017] The vertical adjustment structure is connected to the bottom support block, and the vertical adjustment structure can drive the bottom support block to rise and fall.

[0018] Optionally, the vertical adjustment structure includes a connecting plate and a lifting cylinder;

[0019] The bottom of the connecting plate is fixedly connected to the extended end of the lifting cylinder, and the top of the connecting plate is connected to the bottom support block;

[0020] The lifting cylinder can drive the connecting plate to move up and down.

[0021] Optionally, the bottom of the head support sleeve is higher than the top of the bottom support block.

[0022] Optionally, the second supporting unit further includes an adaptive structural member;

[0023] The adaptive structural member can generate elastic force in the lateral direction so as to make the bottom support block abut against the bottom end of the head of the silicon rod and fix the bottom support block.

[0024] Optionally,

[0025] The adaptive structural member includes a guide rod, a spring, a guide rod restrainer and a support block mounting seat;

[0026] The guide rod is arranged on the connecting plate in a horizontal direction, and one end of the guide rod close to the bottom support block is fixedly connected to the support block mounting seat, the spring is sleeved on the outside of the guide rod, and the two ends of the spring are respectively against the support block mounting seat and the guide rod restrainer;

[0027] The support block mounting seat is used for mounting the bottom support block.

[0028] Optionally, the head support sleeve has a tapered plug-in hole for plugging in a special-shaped head.

[0029] A material feeding device for cutting off the special-shaped head of a silicon rod, comprising a mounting assembly and a supporting mechanism for cutting off the special-shaped head of a silicon rod;

[0030] The supporting mechanism is arranged on the mounting assembly, and the supporting mechanism slides relative to the mounting assembly along the length direction of the mounting assembly to approach the head end of the silicon rod, and the supporting mechanism supports the head end of the silicon rod.

[0031] (III) Beneficial effects

[0032] The beneficial effects of the present invention are as follows: the present invention provides a support mechanism for cutting off the special-shaped head of a silicon rod, wherein the first support unit and the second support unit can slide together relative to the silicon rod support platform to move toward the head end of the silicon rod until the first support unit abuts against the end face of the head end of the silicon rod to support from one end of the silicon rod, and the second support unit supports the bottom end of the special-shaped head at the head end of the silicon rod, and the two are jointly supported to cooperate with the cutting head to cut the special-shaped head of the silicon rod, without manual support, thereby improving the feeding efficiency, and compared with manual feeding, the support is convenient and the supporting effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the front view structure of the cutting mechanism for cutting silicon rods of the present invention;

[0034] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the main view of a feeding device for cutting off the special-shaped head of a silicon rod;

[0035] Figure 3 for Figure 1 A schematic diagram of the main structure of a feeding device for cutting off the special-shaped head of a silicon rod;

[0036] Figure 4 for Figure 1 A schematic diagram of the left structural view of a feeding device for cutting off the special-shaped head of a silicon rod;

[0037] Figure 5 for Figure 2 A schematic diagram of the structure of a support mechanism for cutting off the irregular-shaped head of a silicon rod.

[0038] [Description of Reference Numerals]

[0039] 1: Installation assembly; 11: Connecting support; 12: Moving structure; 13: Support bracket; 131: Support; 132: Auxiliary support cylinder; 133: Elastic protective sleeve; 2: Support mechanism; 21: First support unit; 211: Support base; 212: Support connecting rod; 213: Head support sleeve; 214: Rotating cylinder; 22: Second support unit; 221: Bottom support block; 222: Vertical adjustment structure; 223: Connecting plate; 224: Guide rod; 225: Spring; 226: Guide rod restrainer; 227: Support block mounting seat; a: Silicon rod support platform; b: Special-shaped head; c: Cutting head; d: First truncation head; e: Second truncation head; f: First support device; g: Second support device. DETAILED DESCRIPTION

[0040] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below with reference to the accompanying drawings and through specific embodiments. Figure 1 The orientation of Figure 1 The positions of the first cutting blade head d, the second cutting blade head e, the first supporting device f and the second supporting device g relative to the silicon rod supporting platform a are defined as "upper"; the first cutting blade head d and the second cutting blade head e are arranged on the "left and right" sides relative to the silicon rod supporting platform a; the side perpendicular to the paper surface facing inward is defined as "back".

[0041] Reference Figure 1 As shown, a cutting production line proposed in an embodiment of the present invention includes a feeding device for cutting off the special-shaped heads of silicon rods, a silicon rod supporting platform a, a supporting and positioning device, a first cutting blade head d and a second cutting blade head e.

[0042] Among them, a movable guide rail of the same length as itself is provided on the top of the silicon rod support platform a along its longitudinal direction (left-right length direction). The unloading device, the supporting positioning device, the first cutting blade d and the second cutting blade e for cutting off the special-shaped head of the silicon rod can all slide left and right along the movable guide rail on the silicon rod support platform a.

[0043] The supporting and positioning device is arranged between the first cutting blade d and the second cutting blade e. The bottom of the first supporting device f and the second supporting device g of the centering and positioning system, the bottom of the first cutting blade d and the bottom of the second cutting blade e can all move along the movable guide rail. Specifically, after the silicon rod is placed horizontally on the supporting and positioning device and adjusted and fixed, the first cutting blade d and the second cutting blade e at both ends of the silicon rod that can move horizontally left and right along the movable guide rail 400 are used to cut the silicon rod from both ends of the silicon rod to form a plurality of silicon rod units of the length required for subsequent processing.

[0044] It should be noted that before the two cutting heads start cutting, the centering positioning system needs to be determined so that the first cutting head d and the second cutting head e can make way for each other to cooperate with the cutting work.

[0045] In addition, before cutting, since the entire silicon rod is drawn, a conical silicon rod head is formed during the drawing process, especially at the starting end of the silicon rod, i.e., the head. Therefore, a silicon rod head unloading device is required to cooperate with the cutting head c on the first cutting blade d to unload the silicon rod head and transport the silicon rod head to the unloading position.

[0046] Among them, see Figure 1-Figure 5 As shown, a feeding device for cutting off the special-shaped head of a silicon rod comprises a mounting assembly 1 and a supporting mechanism 2 for cutting off the special-shaped head of the silicon rod.

[0047] See also Figure 1 As shown, the mounting assembly 1 is disposed on the silicon rod supporting platform a, and the mounting assembly 1 can slide relatively along the length direction of the silicon rod supporting platform a to approach or move away from the head of the silicon rod.

[0048] Furthermore, the mounting assembly 1 includes a connecting support 11 , a blanking support structure and a moving structure 12 .

[0049] It should be noted that the connecting support 11 is slidably mounted on the silicon rod supporting platform a. Figure 4 The connecting support 11 drives the entire mounting assembly 1 to slide left and right relative to the movable guide rail on the silicon rod supporting platform a through a travel motor, and drives the entire unloading device to slide left and right relative to the silicon rod supporting platform a along its length direction to cooperate with the unloading of the silicon rod head.

[0050] See also Figure 4 As shown, the material unloading support structure includes two support brackets 13 symmetrically arranged relative to the front and rear ends of the silicon rod. The two support brackets 13 are respectively connected to the front and rear ends of the connecting support 11, and each support bracket 13 includes a support inclined surface, and the two support brackets 13 form a "V"-shaped support groove. This is to facilitate the support and unloading of the silicon rod as a whole. Even if there is a support positioning device to support the entire silicon rod, when the silicon rod needs to be cut, a part of the silicon rod needs to be placed on the support bracket 13 on the unloading support structure, and then the silicon rod is cut by the cutting head c.

[0051] In this embodiment, the movable structure 12 is disposed between the two support brackets 13 , and the movable structure 12 is fixedly connected to the connecting support 11 . The movable structure 12 can drive the support mechanism 2 to slide along its length direction.

[0052] Specifically, the moving structure 12 includes a moving slide, a servo motor, a lead screw and a lead screw nut. The moving slide is fixedly arranged on the connecting support 11, and the output shaft of the moving motor is axially and horizontally arranged at one end of the moving slide. The output end of the moving motor is fixedly connected to the lead screw, and the outer wall of the lead screw is screwed with the lead screw nut. The lead screw nut can slide horizontally along the length direction of the lead screw. The lead screw nut is connected to the support mechanism 2, and the support mechanism 2 can move along the slide rail on the moving slide. The structure of the moving structure 12 is simple and low in cost.

[0053] Further, the support bracket 13 includes a support 131 and a plurality of auxiliary support cylinders 132. The support 131 has an inclined end surface inclined inwardly, and the plurality of auxiliary support cylinders 132 are arranged at intervals on the inclined end surface.

[0054] Furthermore, the outer peripheral side wall of the extended end of the auxiliary support cylinder 132 is sleeved with an elastic protective sleeve 133. It can protect the cylinder body and prevent cutting fluid from entering the cylinder during cutting, which affects the life of the cylinder.

[0055] In this embodiment, the support mechanism 2 is arranged on the mounting component 1, and the support mechanism 2 slides relative to the mounting component 1 along the length direction of the mounting component 1 to approach the head of the silicon rod. The support mechanism 2 supports the head of the silicon rod, and the special-shaped head b of the silicon rod is cut by the cutting head c. After cutting, the support mechanism 2 slides along the length direction (left and right direction) of the mounting component 1 to move away from the special-shaped head b, and the special-shaped head b falls on the mounting component 1.

[0056] Next, the mounting assembly 1 can drive the special-shaped head b to be transported to the unloading position.

[0057] It should be noted that the unloading position is located on the left side of the silicon rod support platform a. A robot is arranged just above the unloading position, and then the unloading clamp robot takes the unloading material to the conveyor roller, completing the unloading fully automatically without manual labor.

[0058] Furthermore, the supporting mechanism 2 includes a first supporting unit 21 and a second supporting unit 22. The first supporting unit 21 is connected to the mounting assembly 1 to support one end of the head of the silicon rod.

[0059] Furthermore, the first support unit 21 includes a support base 211 , a support link 212 and a head support sleeve 213 .

[0060] See also Figure 5As shown, the support base 211 is fixed to the lead screw nut of the mounting assembly 1, and slides left and right with the lead screw nut. The support base 211 is connected to the head support sleeve 213 through the support connecting rod 212, and the bottom of the head support sleeve 213 is higher than the top of the second support unit 22. The head support sleeve 213 has a conical plug hole for plugging the conical head, which can better cooperate with the head of the silicon rod for support and positioning. Moreover, the purpose of the bottom of the head support sleeve 213 being higher than the top of the second support unit 22 is to be able to support the end and bottom of the silicon rod from the head, respectively, to ensure the support effect.

[0061] It should be noted that before processing, the axis of the head support sleeve 213 and the axis of the silicon rod need to be ensured to be on the same horizontal line, which can be achieved by adjusting the horizontal position of the support and positioning device where the silicon rod is located.

[0062] In this embodiment, the first support unit 21 further includes a rotating cylinder 214. The rotating cylinder 214 is fixedly installed in the inner cavity of the support base 211, and the output end of the rotating cylinder 214 is fixedly connected to the support connecting rod 212. The rotating cylinder 214 can rotate the support connecting rod 212 along the axis of its output shaft to drive the head support sleeve 213 to rotate. The purpose of adding the rotating cylinder 214 is to rotate the first support unit 21 as a whole along its axis and lay it down by the rotating cylinder 214 during unloading, so as to make way for the manipulator at the unloading position.

[0063] See also Figure 5 The second supporting unit 22 is fixedly connected to the first supporting unit 21 to support the bottom end of the head of the silicon rod.

[0064] Further, the second support unit 22 includes a bottom support block 221 and a vertical adjustment structure 222. The vertical adjustment structure 222 is connected to the bottom support block 221, and the vertical adjustment structure 222 can drive the bottom support block 221 to rise and fall. Specifically, the vertical adjustment structure includes a connecting plate 223 and a lifting cylinder 33. The bottom of the connecting plate 223 is fixedly connected to the protruding end of the lifting cylinder 33, and the top of the connecting plate 223 is connected to the bottom support block 221. The lifting cylinder 33 can drive the connecting plate 223 to rise and fall, and of course it can also be other power components that can control the rise and fall.

[0065] It should be noted that the left and right movement of the unloading device on the silicon rod support platform a is achieved by driving a walking motor to approach or move away from the head of the silicon rod in the general direction. After the entire unloading device approaches the head of the silicon rod, the first support unit 21 and the second support unit 22 are driven by the moving structure 12 to further approach the head of the silicon rod along the slide rail of the moving structure 12, so that the head of the silicon rod is just inserted into the conical plug-in hole, and the bottom support block 221 of the second support unit 22 is against the head of the silicon rod to form a good support. In addition, the second support unit 22 can also move up and down under the support of the vertical adjustment structure 222 to support the heads of silicon rods of different shapes.

[0066] Furthermore, the second support unit 22 also includes an adaptive structural member. The adaptive structural member can generate elastic force in the lateral direction so that the bottom support block 221 abuts against the bottom end of the head of the silicon rod and fixes the bottom support block 221. By setting the adaptive structural member, adaptive support for the heads of silicon rods of different lengths and different taper angles can be achieved. At the same time, it can avoid micro-movement of the head of the silicon rod during the cutting process and reduce the occurrence of edge collapse. Manual operation is cancelled. After the cutting is completed, the servo motor of the mobile drive member 12 drives it to the unloading position, and finally the unloading robot clamps the unloading material.

[0067] Furthermore, the adaptive structural component includes a guide rod 224 , a spring 225 , a guide rod restrainer 226 and a support block mounting seat 227 .

[0068] In this embodiment, the connecting plate 223 is connected to the vertical adjustment structure 222, and the guide rod 224 is arranged on the connecting plate 223 in a horizontal direction. The end of the guide rod 224 close to the bottom support block 221 is fixedly connected to the support block mounting seat 227, and the spring 225 is sleeved on the outside of the guide rod 224. The two ends of the spring 225 are respectively against the support block mounting seat 227 and the guide rod restrainer 226. The support block mounting seat 227 is used to install the bottom support block 221. The bottom support block 221 can realize the lifting action under the action of the lifting cylinder of the vertical adjustment structure 222, and can also move in the horizontal direction under the action of the spring 225 and the guide rod 224. After ensuring that the bottom support block 221 is in contact with the end of the silicon rod and the bottom inclined surface, the guide rod 224 is locked and fixed under the action of the guide rod restrainer 226, thereby improving the positioning support effect.

[0069] This embodiment provides a material unloading device for cutting off the special-shaped head of a silicon rod, which drives the support mechanism 2 to slide relative to the silicon rod support platform a through the installation component 1 to move toward the head of the silicon rod until the support mechanism 2 and the head of the silicon rod are against each other and supported from one end and the bottom of the silicon rod respectively, so as to cooperate with the cutting head to cut the head of the silicon rod, and transport the cut special-shaped head b to the unloading position for full-automatic unloading, without manual unloading, thus improving the unloading efficiency, and compared with manual unloading, the support is convenient and the support effect is good. It solves the existing technical problem that the special-shaped head b of the silicon rod is generally removed by manually inserting a wedge block under the special-shaped head b, and the special-shaped conical surface is padded and then the special-shaped head b is cut. In addition, the unloading of the special-shaped head b after cutting is currently also carried out manually, which not only reduces the work efficiency, but also increases the labor intensity, and involves many people, resulting in an increase in the cost of silicon rod truncation.

[0070] In the description of the present invention, it should be understood that 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0071] 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection 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.

[0072] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0073] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0074] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A support mechanism for cutting off the irregular head of a silicon rod, characterized in that: It comprises a first supporting unit (21) and a second supporting unit (22); The first supporting unit (21) is capable of moving along the silicon rod processing platform (a) toward the head end of the silicon rod to support the special-shaped head (b) at the head end of the silicon rod; The second supporting unit (22) is fixedly connected to the first supporting unit (21) to support the bottom end of the special-shaped head (b); The second support unit (22) comprises a bottom support block (221) and a vertical adjustment structure (222); the vertical adjustment structure (222) comprises a connecting plate (223); The second supporting unit (22) further comprises an adaptive structural member; The adaptive structural member is capable of generating elastic force in the lateral direction, so that the bottom support block (221) abuts against the bottom end of the special-shaped head (b) of the silicon rod and fixes the bottom support block (221); The adaptive structural component comprises a guide rod (224), a spring (225), a guide rod restrainer (226) and a support block mounting seat (227); The guide rod (224) is arranged on the connecting plate (223) in a horizontal direction, and one end of the guide rod (224) close to the bottom support block (221) is fixedly connected to the support block mounting seat (227), and the spring (225) is sleeved on the outside of the guide rod (224), and the two ends of the spring (225) are respectively against the support block mounting seat (227) and the guide rod restrainer (226); The support block mounting seat (227) is used to mount the bottom support block (221).

2. The supporting mechanism for cutting off the special-shaped head of a silicon rod according to claim 1, characterized in that: The first support unit (21) comprises a support base (211), a support connecting rod (212) and a head support sleeve (213); The support base (211) is slidably connected to the silicon rod processing platform (a), and the support base (211) is connected to the head support sleeve (213) via the support connecting rod (212).

3. The supporting mechanism for cutting off the special-shaped head of a silicon rod according to claim 2, characterized in that: The first supporting unit (21) further comprises a rotating cylinder (214); The rotary cylinder (214) is fixedly mounted in the inner cavity of the support base (211); the output end of the rotary cylinder (214) is fixedly connected to the support connecting rod (212); the rotary cylinder (214) can cause the support connecting rod (212) to rotate along the axis of its output shaft, thereby driving the head support sleeve (213) to rotate.

4. The supporting mechanism for cutting off the special-shaped head of a silicon rod according to claim 3, characterized in that: The vertical adjustment structure (222) is connected to the bottom support block (221), and the vertical adjustment structure (222) can drive the bottom support block (221) to rise and fall.

5. The supporting mechanism for cutting off the special-shaped head of a silicon rod according to claim 4, characterized in that: The vertical adjustment structure comprises a lifting cylinder (33); The bottom of the connecting plate (223) is fixedly connected to the protruding end of the lifting cylinder (33), and the top of the connecting plate (223) is connected to the bottom supporting block (221); The lifting cylinder (33) can drive the connecting plate (223) to move up and down.

6. The supporting mechanism for cutting off the special-shaped head of a silicon rod according to claim 5, characterized in that: The bottom of the head support sleeve (213) is higher than the top of the bottom support block (221).

7. The supporting mechanism for cutting off the special-shaped head of a silicon rod according to claim 6, characterized in that: The head support sleeve (213) has a conical plug-in hole for plugging the special-shaped head (b).

8. A feeding device for cutting off the special-shaped head of a silicon rod, characterized in that: It comprises a mounting assembly (1) and a supporting mechanism for cutting off a special-shaped head of a silicon rod according to any one of claims 1 to 7; The support mechanism (2) is arranged on the mounting assembly (1), and the support mechanism (2) slides relative to the mounting assembly (1) along the length direction of the mounting assembly (1) to approach the head end of the silicon rod, and the support mechanism (2) supports the head end of the silicon rod.

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