Sand sweeping pipe and multi-line-opening production equipment

Abstract

The utility model discloses a sand sweeping pipe and multi-wire-opening production equipment, and belongs to the field of diamond wire production equipment. According to the sand sweeping pipe, the liquid inlet of the sand sweeping pipe is formed in the middle of the round pipe, the distance between the sand sweeping holes in the bottom of the round pipe is gradually increased from the middle to the two ends, it can be ensured that water flow sprayed from all positions of the sand sweeping pipe has high uniformity, a sand-containing solution in a plating tank obtains the uniform washing effect, and then the sand feeding CPK value of the solution is increased; the production quality of the diamond wire is improved. The liquid inlet of the sand sweeping pipe is formed in the middle of the round pipe, and the distance between the sand sweeping holes in the bottom of the round pipe is gradually increased from the middle to the two ends, so that high uniformity of water flow jetted from all positions of the sand sweeping pipe can be ensured, a sand-containing solution in a plating tank obtains a uniform washing effect, the sand feeding CPK value of the solution is further increased, and the plating efficiency is improved. The production quality of the diamond wire is improved.

Description

Technical Field

[0001] This application relates to the field of diamond wire production equipment, and more particularly to a sand-sweeping tube and multi-wire port production equipment. Background Technology

[0002] With the development of the diamond wire industry, the requirements for diamond wire cutting performance are becoming increasingly refined. This extends beyond simply improving the physical properties of diamond wire, such as breaking strength and cutting force, and also includes the distribution and accumulation of abrasive particles during the cutting process. A stable abrasive distribution is beneficial for improving the cutting quality of photovoltaic silicon wafers, increasing the uniformity and consistency of the wafers after cutting, and reducing wire marks and bowing caused by changes in cutting force during wafer cutting. Therefore, improving the stability of abrasive application on diamond wire is a crucial way to enhance the cutting quality of diamond wire.

[0003] Furthermore, with the widespread adoption of horizontal diamond wire coating machines by manufacturers, such as Meichang's 16-wire machine and Dailer New Materials' 20-wire machine, there are significant differences in the sand coating stability between different wire openings. This can easily lead to a widening difference in the density of the sand between the wire openings after production, resulting in a lower pass rate. One existing sand-sweeping pipe has a liquid inlet at one end and no outlet at the other, with evenly distributed outlets on the side. The sand-sweeping pipe moves in a linear, cyclical motion. However, this type of sand-sweeping pipe has the following disadvantages: sand accumulates at both ends of the sand-coating tank, and the sand particle distribution in the upper and lower layers of the solution is inconsistent, with a denser lower layer and a sparser upper layer, ultimately leading to uneven sand coating on the diamond wire.

[0004] In view of this, a new technical solution is needed to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this application is to provide a sand-sweeping tube and a multi-wire production equipment, which can provide a more uniform sand-sweeping effect, thereby improving the quality of diamond wire products.

[0006] To achieve the above objectives, the first aspect of this application provides a sand-sweeping pipe, including a connecting pipe and a circular pipe. The circular pipe has a liquid inlet in the middle, which is sealed to one end of the connecting pipe. The circular pipe has two rows of sand-sweeping holes on its sidewall opposite to the liquid inlet. The two rows of sand-sweeping holes are arranged along the length of the circular pipe and symmetrically distributed on both sides of the vertical plane of the circular pipe. The spacing between the sand-sweeping holes in each row gradually increases from the middle to both ends.

[0007] As a further improvement, the two end walls of the circular tube are provided with sand-sweeping holes, and each end wall is provided with two sand-sweeping holes.

[0008] As a further improvement, the vertical line connecting the sand-sweeping hole and the center line of the circular tube forms a 45° angle with the horizontal plane.

[0009] As a further improvement, it also includes an inner tube nested inside the circular tube, the two ends of the inner tube being closed and the middle of the inner tube being connected to the liquid inlet of the circular tube, and the inner tube having at least one liquid outlet hole on the side wall near the liquid inlet, the liquid outlet holes being evenly arranged along the length direction of the inner tube.

[0010] As a further improvement, a liquid outlet hole is provided on both ends of the inner tube.

[0011] As a further improvement, the circular tube is formed by welding two sections of tube together.

[0012] The second aspect of this application provides a multi-line port production equipment, which includes a plating tank, wherein a butterfly-shaped track groove is provided on the side wall of the plating tank, and the butterfly-shaped track groove is equipped with a sand-sweeping pipe as described above.

[0013] The end of the connecting pipe away from the circular pipe passes through the butterfly-shaped track groove and is connected to an external device.

[0014] As a further improvement, the length of the circular tube is the same as the width of the plating tank.

[0015] Compared with existing technologies, this application brings the following technical effects:

[0016] The sand-sweeping pipe of this application has its inlet located in the middle of a circular pipe. The spacing of the sand-sweeping holes at the bottom of the circular pipe gradually increases from the middle to both ends. This ensures that the water flow sprayed from all parts of the sand-sweeping pipe is highly uniform, so that the sand-containing solution in the plating tank can obtain a uniform rinsing effect, thereby improving the sand-coating CPK value of the solution and improving the production quality of diamond wire. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the assembly structure of the plating tank and the sand-sweeping pipe in Embodiment 1 of this application is shown (one of the sand-sweeping pipes is omitted);

[0019] Figure 2 It shows Figure 1 Top view of the structure shown;

[0020] Figure 3 A perspective view of the sand-sweeping pipe according to Embodiment 1 of this application is shown;

[0021] Figure 4A perspective view of the sand-sweeping pipe of Embodiment 1 of this application is shown from another angle;

[0022] Figure 5 This shows a structural diagram from the perspective of the end of the sand-sweeping pipe in Embodiment 1 of this application;

[0023] Figure 6 A perspective view of the sand-sweeping pipe according to Embodiment 2 of this application is shown;

[0024] Figure 7 It shows Figure 6 An exploded 3D view of the sand-sweeping pipe shown.

[0025] Figure 8 It shows Figure 6 The cross-sectional view of the double-layered pipe body of the sand sweeping pipe shown;

[0026] Figure 9 This diagram illustrates the sand loading process capacity of a prior art sand-sweeping pipe.

[0027] Figure 10 The diagram shows the sand loading process capacity of the sand sweeping pipe in this application.

[0028] Explanation of key component symbols:

[0029] Plating tank-10; butterfly-shaped track groove-11; sand sweeping pipe-20; connecting pipe-21; round pipe-22; sand sweeping hole-221; inner pipe-23; liquid outlet hole-231. Detailed Implementation

[0030] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other. Embodiments of this application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0032] Example 1

[0033] Please see Figure 1-5This embodiment provides a multi-wire production equipment applicable to a horizontal sanding machine for producing diamond wire. The multi-wire production equipment includes a plating tank 10 and a sand-sweeping pipe 20. It should be noted that the multi-wire production equipment also includes other devices and structures besides the sand-plating process, but the main improvements of this application focus on the sand-plating process. Therefore, this embodiment only describes the plating tank 10 and the sand-sweeping pipe 20 in detail, while other devices and structures are not described in detail. However, this does not mean that the multi-wire production equipment lacks those components.

[0034] Please see Figure 1-2 In this embodiment, the plating tank 10 has a rectangular structure, and the diamond wire is conveyed from left to right as shown in the figure. A butterfly-shaped track groove 11 is provided on one side wall of the plating tank 10. Specifically, the butterfly-shaped track groove 11 includes two symmetrical sections, each of which has a near-elliptical shape. A sand-sweeping pipe 20 is matched in each track groove section. During operation, the sand-sweeping pipe 20 reciprocates along the shape of the butterfly-shaped track groove 11, thereby flushing the sand-containing solution in the plating tank 10 to make the diamond sand in the solution more evenly distributed.

[0035] Those skilled in the art will understand that this multi-line production equipment also includes a drive mechanism and a water pump, which are used to drive the sand sweeping pipe 20 to move along the butterfly-shaped track groove 11, while simultaneously drawing the solution in the plating tank 10 and spraying it back into the plating tank 10 from the sand sweeping pipe 20 to form a cycle.

[0036] Please see Figure 3-5 Specifically, in this embodiment, the sand-sweeping pipe 20 includes a connecting pipe 21 and a circular pipe 22. The circular pipe 22 is designed to be immersed in the solution for sand sweeping, and the connecting pipe 21 is designed to connect an external device to the circular pipe 22.

[0037] Specifically, the circular tube 22 has a liquid inlet (not shown in the figure) in the middle, which is sealed to one end of the connecting tube 21. Two rows of sand-sweeping holes 221 are formed on the side wall of the circular tube 22 opposite to the liquid inlet. These two rows of holes are arranged symmetrically on both sides of the vertical plane of the circular tube 22 along its length, with the spacing between each row gradually increasing from the middle to both ends. The length of the circular tube 22 matches the width of the plating tank 10, but is slightly smaller. One end of the connecting tube 21 connects to the circular tube 22, and the other end connects to an external device. The specific shape of the connecting tube 21 can be flexibly set according to the environment in which the equipment is located.

[0038] After installation, the circular tube 22 remains parallel to the liquid surface. During operation, driven by an external device, the connecting pipe 21 moves the circular tube 22 along the butterfly-shaped track groove 11, continuously sweeping the solution. In this embodiment, the butterfly-shaped track groove 11 not only ensures that the sweeping tube 20 can complete the sweeping of the plating tank 10 without dead angles in the direction of diamond wire conveying, but also allows the sweeping tube 20 to sweep the upper and lower layers of the solution on the elliptical upper and lower sides, expanding the effective range of the uniformly distributed solution, thereby ensuring the quality of the diamond wire product.

[0039] As the solution flows from the inlet into the circular tube 22, its velocity decreases as it flows towards both ends. The velocity of the water flow decreases the further away from the circular tube 22. Therefore, the existing practice of setting the sand-sweeping holes in the sand-sweeping tube 20 to be uniformly distributed will actually lead to uneven scouring. At this time, the distribution of diamond grit in the solution will be uneven along the length of the sand-sweeping tube 20, resulting in uneven grit distribution on the diamond wire.

[0040] In this embodiment, the liquid inlet is located in the middle of the circular tube 22. With the spacing of the sand-sweeping holes 221 gradually increasing from the middle to both ends, it can be ensured that the sprayed water flow has a uniform velocity throughout the circular tube 22. This allows the diamond grit in the solution to receive a uniform scouring effect, resulting in a uniform distribution of diamond grit in the solution. This, in turn, increases the CPK value of the solution and improves the production quality of diamond wire.

[0041] It is worth mentioning that the aforementioned CPK value for corundum in the solution is used in the art to verify whether a production system has the ability to consistently output qualified products over a long period. This CPK value is directly proportional to the uniformity of the distribution of corundum in the solution, with a higher CPK value indicating a more stable production process. The method for determining this CPK value is a conventional technique in the art, and this embodiment only uses it to characterize the technical effect without elaborating on its specific implementation steps.

[0042] Preferably, in this embodiment, the two end walls of the circular tube 22 are also provided with sand-sweeping holes 221, and each end wall is provided with two sand-sweeping holes 221. By providing sand-sweeping holes 221 at both ends of the circular tube 22, the sand-sweeping tube 22 can flush the solution at both ends of the plating tank 10, prevent the diamond abrasive from depositing at both ends, thereby improving the diamond abrasive distribution at both ends of the plating tank 10 and further increasing the abrasive CPK value of the solution.

[0043] Even better, the sand-sweeping holes 221 opened at the bottom and both ends of the circular tube 22 are all at a 45° angle to the horizontal plane when connected to the vertical line of the center line of the circular tube 22. This angle setting can make the solution below and at both ends of the circular tube 22 achieve the best sand-sweeping effect.

[0044] Example 2

[0045] Please see Figure 6-8The difference between this embodiment and Embodiment 1 is that an inner tube 23 is nested inside the circular tube 22. Both ends of the inner tube 23 are closed, and its middle section connects to the liquid inlet of the circular tube 22. Specifically, this end of the connecting pipe 21 is directly and sealed to the inner tube 23, while the liquid inlet of the circular tube 22 is sealed to the wall of the connecting pipe 21. A discharge hole 231 is formed on the top wall of the inner tube 23. These discharge holes 231 are evenly arranged along the length of the inner tube 23. Therefore, water flowing from the connecting pipe 21 directly enters the inner tube 23, and then passes through the discharge hole 231 into the circular tube 22. It should be noted that the inner tube 23 is approximately the same length as the circular tube 22, slightly shorter, and the diameter of the inner tube 23 is smaller than the diameter of the circular tube 22.

[0046] In this embodiment, an inner tube 23 is provided inside the circular tube 22, which can improve the instantaneous uniformity of the sand sweeping pipe 20 at the time of startup. Because the water flow is already evenly "transported" to all parts of the circular tube 22 at the inner tube 23 before it rushes out of the circular tube 22, the entire sand sweeping pipe 20 can obtain a uniform impact water flow at the moment of startup, and the subsequent sand sweeping process can maintain this uniform sand sweeping effect.

[0047] Preferably, an outlet hole 231 is also provided on both ends of the inner tube 23. This arrangement can further ensure that the water flow conditions are consistent throughout the circular tube 22.

[0048] Since the sand-sweeping pipe 20 in this embodiment includes two pipe layers, during manufacturing, the connecting pipe 21 is first welded and fixed to the inner pipe 23, and then the outer circular pipe 22 is manufactured. Specifically, the circular pipe 22 is formed by welding two pipe sections together, and the weld at the joint matches the shape of the connecting pipe 21 to ensure the sealing between the walls of the circular pipe 22 and the connecting pipe 21.

[0049] Preferably, the weld seam between the two pipe sections can be serrated, which helps to improve welding stability.

[0050] Please see Figure 9 and Figure 10 The diagram shows a comparison of the sand-grinding capabilities of existing sand-grinding pipes and the sand-grinding pipe of this application. It can be seen from the diagram that the CPK value of the sand-grinding pipe of this application is greater than that of the existing sand-grinding pipe, meaning that the sand-grinding stability of the new sand-grinding pipe is superior to that of the old sand-grinding pipe. The CPK value of diamond wire represents the potential capability of the diamond wire sand-grinding process under stable and controlled conditions. It assumes that fluctuations caused by special reasons have been eliminated, retaining only the influence of random fluctuations. It emphasizes the performance of the process under ideal conditions and is often used to verify whether a production system has the ability to consistently output qualified products over a long period. A higher CPK value indicates more stable process production. The technical solution of this application can significantly improve the product qualification rate.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom still fall within the scope of protection of this application.

Claims

1. A sand scanner tube, characterized by It includes a connecting pipe and a circular pipe. The circular pipe has a liquid inlet in the middle, which is sealed to one end of the connecting pipe. The circular pipe has two rows of sand-sweeping holes on its side wall opposite to the liquid inlet. The two rows of sand-sweeping holes are arranged along the length of the circular pipe and symmetrically distributed on both sides of the vertical plane of the circular pipe. The spacing between the sand-sweeping holes in each row gradually increases from the middle to both ends.

2. The sand scanner pipe of claim 1, wherein, The two end walls of the circular tube are provided with sand-sweeping holes, and each end wall is provided with two sand-sweeping holes.

3. A sand scanner pipe according to claim 1 or 2, c h a r a c t e r i s e d in that The vertical line connecting the sand-sweeping hole and the center line of the circular tube forms a 45° angle with the horizontal plane.

4. The sand scanner tube of claim 1, wherein, It also includes an inner tube nested inside the circular tube. The inner tube is closed at both ends and its middle part is connected to the liquid inlet of the circular tube. The inner tube has at least one liquid outlet hole on its side wall near the liquid inlet, and the liquid outlet holes are evenly arranged along the length of the inner tube.

5. The sand-sweeping pipe as described in claim 4, characterized in that, Each end of the inner tube has a liquid outlet hole.

6. The sand-sweeping pipe as described in claim 4, characterized in that, The circular tube is formed by welding two sections of tube together.

7. A multi-port production equipment, characterized in that, The plating tank includes a plating bath, the side wall of which is provided with a butterfly-shaped track groove, and the butterfly-shaped track groove is equipped with a sand-sweeping pipe as described in any one of claims 1-6. The end of the connecting pipe away from the circular pipe passes through the butterfly-shaped track groove and is connected to an external device.

8. The multi-lane portal production apparatus of claim 7, wherein, The length of the circular tube is the same as the width of the plating tank.

Images