Sand blasting device
By setting multiple interfaces and adjustment devices on the adapter of the sandblasting device, the air intake volume is controlled, which solves the problem of difficult sand flow control in existing devices and realizes precise adjustment of sand flow and uniformity of sandblasting effect.
Patent Information
- Application Number
- CN202423008982.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing sandblasting equipment has difficulty in effectively controlling the sand flow rate, making it difficult to apply to the processing of fine structures.
The sandblasting device has a first, second, and third interface on its adapter assembly, and the air intake of the third interface is controlled by an adjustment device to adjust the sand flow rate.
It enables effective adjustment of sandblasting flow rate, improves the uniformity and accuracy of sandblasting effect, and is suitable for processing fine structures.
Smart Images
Figure CN223734665U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of solid particle sandblasting, and in particular to a sandblasting device. Background Technology
[0002] Sandblasting is commonly used in polishing, dust removal, and rust removal. With precise control of its process parameters, it can also be applied to the processing of fine structures such as semiconductor chips. One of the key parameters in sandblasting is the abrasive flow rate. Different abrasive flow rates have a significant impact on the sandblasting effect, such as the sandblasting rate, the mask loss rate, and the aspect ratio of the sandblasted structure. Therefore, controlling the abrasive flow rate parameter in the sandblasting process is crucial.
[0003] Currently, commonly used sandblasting devices utilize negative pressure extraction. Specifically, the nozzle is connected to compressed air, which creates a negative pressure zone near the rapidly flowing air, thus forming negative pressure in the sand delivery pipe to extract sand. Therefore, theoretically, adjusting the sand flow rate can be achieved by controlling the negative pressure within the sand delivery channel or by installing a sand valve within the pipe. However, in practice, adjusting the overall negative pressure within the sand delivery channel requires adjusting the compressed air pressure within the nozzle, but changes in this parameter significantly impact the sandblasting effect, making it impractical to alter the negative pressure by adjusting this primary parameter. Sand valves, on the other hand, would cause sand blockage in the delivery pipe and valve wear, making them unsuitable as well. Typically, there is a junction between the sand delivery pipe and the sand storage hopper, which either lacks an air inlet or has a fixed-size inlet, and there is currently no effective method to control the sand flow rate. In conclusion, current negative pressure sandblasting devices are difficult to apply to the machining of fine structures. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the defect of the sand flow rate of the existing sandblasting machine being uncontrollable, and to provide a sandblasting device.
[0005] The present invention solves the above-mentioned technical problems through the following technical solution:
[0006] A sandblasting device includes a sand storage hopper and a sand conveying pipe, and further includes:
[0007] The adapter assembly has a first interface, a second interface, and a third interface on its surface. The first interface, the second interface, and the third interface are interconnected inside the adapter assembly. The first interface is connected to the sand storage hopper, and the second interface is connected to the sand conveying pipe so that the sand conveying pipe is connected to the sand storage hopper.
[0008] An adjustment device having two interconnected ends, capable of adjusting the opening between the two ends, one end of the adjustment device being connected to the third interface, and the other end of the adjustment device being connected to the outside.
[0009] In this technical solution, sand conveying between the sand storage hopper and the sand conveying pipe is achieved by setting a first interface and a second interface on the adapter assembly, respectively connecting to the sand storage hopper and the sand conveying pipe. Simultaneously, a third interface is provided on the adapter assembly, along with an adjustment device. One end of the adjustment device is connected to the third interface, and the other end is connected to the outside, allowing outside air to enter the sand conveying pipe, thereby reducing the amount of sand obtained from the sand storage hopper. Furthermore, by changing the air intake at the third interface through the adjustment device, the amount of sand conveyed from the sand storage hopper to the sand conveying pipe through the adapter assembly is controlled, thus achieving effective regulation of the sand flow rate during sandblasting.
[0010] Preferably, the second interface is formed at the bottom of the adapter component.
[0011] In this technical solution, by setting the second interface at the bottom of the adapter component, it is convenient for sand particles to flow from the adapter component into the sand conveying pipe.
[0012] Preferably, there are multiple third interfaces, and the number of adjustment devices corresponds to the number of third interfaces, and each device is connected to the corresponding third interface.
[0013] In this technical solution, by setting two third interfaces and setting adjustment devices one-to-one with the third interfaces, that is, setting an adjustment device at each third interface, the adjustment range of the air intake at the third interface can be expanded, thereby expanding the adjustment range of the sand flow rate.
[0014] Preferably, the two third interfaces have an included angle greater than 0.
[0015] In this technical solution, by setting the interface orientation of the two third interfaces to have an angle greater than 0, that is, external gas can enter the adapter from different directions, and the gas mixes with the sand particles from multiple directions, thereby making the gas and sand particles mix more thoroughly.
[0016] Preferably, one of the third interfaces is formed on the top of the adapter assembly, and the other third interface is formed on the side of the adapter assembly, with the interfaces of the two third interfaces facing perpendicularly to each other.
[0017] Preferably, the number of the third interfaces is two, and the adapter component is a four-way connector.
[0018] Preferably, the adapter assembly is detachably connected to the sand storage hopper.
[0019] In this technical solution, by setting the adapter component and the sand storage hopper to be detachably connected, the sandblasting device can be easily transported and moved.
[0020] Preferably, the adapter assembly is detachably connected to the sand conveying pipe.
[0021] In this technical solution, by setting the adapter component and the sand conveying pipe to be detachably connected, the sandblasting device can be easily transported and moved.
[0022] Preferably, the adapter is threadedly connected to the sand storage hopper.
[0023] In this technical solution, the detachable connection between the adapter component and the sand storage hopper is achieved by threading the adapter component to the sand storage hopper, and the connection method is simple and reliable.
[0024] Preferably, the sandblasting device further includes a pagoda connector, the threaded end of which is screwed and fixed to the second interface, and the pagoda end of which is connected to the sand conveying pipe.
[0025] In this technical solution, compared to directly threading the adapter to both the sand conveying pipe and the sand storage hopper, a pagoda connector is used to achieve a detachable connection between the adapter and the sand conveying pipe. One end of the pagoda connector is threaded to the adapter, and the other end is inserted into the sand conveying pipe, so that there is no unreleased circumferential stress when the adapter is connected to the sand conveying pipe and the sand storage hopper.
[0026] Preferably, the regulating device is a ball valve.
[0027] In this technical solution, by setting the regulating device as a ball valve, the air intake volume of the transfer component can be infinitely adjusted.
[0028] Preferably, the ball valve is threadedly connected to the adapter assembly.
[0029] Preferably, the adapter assembly is made of stainless steel.
[0030] Preferably, the adjusting device is made of stainless steel.
[0031] The significant advantages of this invention are as follows: By setting a first interface and a second interface on the adapter assembly to connect to the sand storage hopper and the sand conveying pipe respectively, sand conveying is achieved. Simultaneously, by setting a third interface on the adapter assembly and incorporating an adjusting device, one end of which connects to the third interface and the other end connects to the outside, the amount of sand conveyed from the sand storage hopper to the sand conveying pipe through the adapter assembly can be controlled by adjusting the air intake at the third interface, thereby effectively regulating the sand flow rate during sandblasting. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the structure of a sandblasting device according to an embodiment of the present invention.
[0033] Figure 2 This is an enlarged view of part A in the diagram.
[0034] Figure 3 A top view of an adapter assembly according to an embodiment of the present invention.
[0035] Figure 4 This is a front view schematic diagram of an adapter component according to an embodiment of the present invention.
[0036] Figure 5 This is a left-side view of an adapter component according to an embodiment of the present invention.
[0037] Sandblasting device 100
[0038] Sandblasting machine 1
[0039] Sand conveying pipe 2
[0040] Sand storage hopper 3
[0041] Adapter Component 4
[0042] First interface 41
[0043] Second interface 42
[0044] Third Interface 43
[0045] Adjustment device 5
[0046] Pagoda connector 6 Detailed Implementation
[0047] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.
[0048] like Figures 1-5 As shown, this embodiment provides a sandblasting device 100, which includes a sand storage hopper 3, a sand conveying pipe 2, and a sandblasting machine 1. The sand particles in the sand storage hopper 3 are conveyed to the sandblasting machine 1 through the sand conveying pipe 2 and sprayed out from the nozzle of the sandblasting machine 1.
[0049] The sandblasting device 100 in this embodiment also includes an adapter 4 and an adjustment device 5. For example... Figure 1 and Figure 2As shown, the surface of the adapter component 4 has a first interface 41, a second interface 42, and a third interface 43. These interfaces are interconnected internally within the adapter component 4. The first interface 41 connects to the sand storage hopper 3, and the second interface 42 connects to the sand conveying pipe 2, thus connecting the sand conveying pipe 2 to the sand storage hopper 3. The adjusting device 5 has two interconnected ends, capable of adjusting the opening between them. One end of the adjusting device 5 connects to the third interface 43, and the other end connects to the outside. Sand conveying is achieved by providing the first interface 41 and the second interface 42 on the adapter component 4, which respectively connect to the sand storage hopper 3 and the sand conveying pipe 2. Meanwhile, by setting a third interface 43 on the adapter component 4 and setting an adjustment device 5, one end of the adjustment device 5 is connected to the third interface 43 and the other end is connected to the outside. By changing the air intake at the third interface 43 through the adjustment device 5, the amount of sand transported from the sand storage hopper 3 to the sand conveying pipe 2 through the adapter component 4 can be controlled, thereby achieving effective adjustment of the sand flow rate of the sandblasting.
[0050] Specifically in this embodiment, such as Figure 2 and Figure 4 As shown, the second interface 42 is formed at the bottom of the adapter assembly 4. By placing the second interface 42 at the bottom of the adapter assembly 4, it is convenient for sand particles to flow from the adapter assembly 4 into the sand conveying pipe 2.
[0051] Of course, in other embodiments, since the movement of sand particles is mainly driven by the negative pressure inside the sand conveying pipe 2, the second interface 42 can be formed at any position of the adapter component 4 to allow sand particles to flow from the adapter component 4 to the sand conveying pipe 2. For example, the second interface 42 can be set to be formed on the side of the adapter component 4, which will not be described in detail here.
[0052] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, there are two third interfaces 43, and the number of adjusting devices 5 corresponds to the number of third interfaces 43, and they are respectively connected to the corresponding third interfaces 43. By setting two third interfaces 43 and setting the adjusting devices 5 one-to-one with the third interfaces 43, that is, setting one adjusting device 5 at each third interface 43, the adjustment range of the air intake at the third interface 43 can be expanded, thereby expanding the adjustment range of the sand flow rate.
[0053] Furthermore, in this embodiment, one of the two third interfaces 43 is formed on the top of the adapter component 4, facing upwards in the vertical direction, and the other is formed on the side of the adapter component 4, specifically facing the left side in the horizontal direction. The interfaces of the two third interfaces 43 are perpendicular to each other. By setting the interfaces of the two third interfaces 43 to be perpendicular to each other, external gas can enter the adapter component 4 from different directions. The gas impacts and mixes with the sand particles from different directions, thereby making the gas and sand particles more thoroughly mixed, improving the uniformity of sand flow, and thus improving the uniformity of the sandblasting effect. The sandblasting effect mentioned here includes width, depth, and structural morphology, that is, by making the gas and sand particles mix more uniformly, a better sandblasting effect can be achieved.
[0054] Of course, in other embodiments, as long as a third interface 43 and a corresponding adjusting device 5 are provided, the sandblasting flow rate can be adjusted. The number of third interfaces 43 is not limited; there can be one or more third interfaces 43. When the air intake adjustment range of the adjusting device 5 is the same as in this embodiment, the more third interfaces 43 and corresponding adjusting devices 5 there are, the larger the sand flow rate adjustment range. Simultaneously, when there are at least two third interfaces 43, setting the orientation of the two third interfaces 43 to have an angle greater than 0 between them allows external gas to enter the adapter component 4 from different directions and mix more thoroughly with the sand particles. In many other embodiments, even with only one third interface 43, the adjustment range can be expanded by selecting an adjusting device 5 with a larger adjustment range; this will not be elaborated further here.
[0055] In this embodiment, the adapter component 4 is a four-way connector. By setting the adapter component 4 as a four-way connector, the structure is simple and easy to manufacture.
[0056] In this embodiment, the adapter component 4 is detachably connected to the sand storage hopper 3. Simultaneously, the adapter component 4 is also detachably connected to the sand conveying pipe 2. By making both the adapter component 4 and the sand storage hopper 3, and the adapter component 4 and the sand conveying pipe 2 detachably connected, the transportation and movement of the sandblasting device 100 are facilitated.
[0057] Specifically, the adapter component 4 and the sand storage hopper 3 are threadedly connected. A thread is formed on the outer peripheral surface of the first interface 41, and the sand storage hopper 3 has a threaded hole that matches the thread on the outer peripheral surface of the first interface 41, allowing the adapter component 4 and the sand storage hopper 3 to be connected by threads. This threaded connection between the adapter component 4 and the sand storage hopper 3 achieves a detachable connection, which is simple and reliable. The adapter component 4 is connected to the sand delivery pipe 2 via a pagoda connector 6. That is, the sandblasting device 100 also includes a pagoda connector 6, the threaded end of which is screwed and fixed to the second interface 42, and the pagoda end of the pagoda connector 6 is inserted and connected to the sand delivery pipe 2. Compared to directly connecting the adapter component 4 to both the sand conveying pipe 2 and the sand storage hopper 3 by threading them together, the adapter component 4 and the sand conveying pipe 2 can be detachably connected by setting a pagoda connector 6. One end of the pagoda connector 6 is threaded to the adapter component 4, and the other end is inserted into the sand conveying pipe 2, so that there is no unreleased circumferential stress when the adapter component 4 is connected to the sand conveying pipe 2 and the sand storage hopper 3.
[0058] Of course, in other embodiments, other existing connection methods that can achieve a detachable connection between the adapter 4 and the sand conveying pipe 2 and the sand storage hopper 3 without generating unreleased circumferential stress can also be used, such as a threaded union connection, or in more embodiments, the adapter 4 can also be configured to be non-detachable with the sand conveying pipe 2 or the sand storage hopper 3, which will not be elaborated here.
[0059] Specifically, in this embodiment, the regulating device 5 is a ball valve. By setting the regulating device 5 as a ball valve, stepless adjustment of the air intake volume of the adapter component 4 can be achieved.
[0060] Of course, in other embodiments, the regulating device 5 can also be other structures in the prior art that can regulate the intake volume, such as a gas proportional valve, a butterfly valve, etc., which will not be described in detail here.
[0061] Specifically, the ball valve is threadedly connected to the adapter assembly 4. The end of the ball valve that mates with the third interface 43 has an external thread, and the side wall of the third interface 43 has an internal thread that matches the ball valve. The external thread of the ball valve engages with the internal thread on the side wall of the third interface 43 to achieve connection.
[0062] In this embodiment, the adapter component 4, the adjustment device 5, and the pagoda connector 6 are all made of stainless steel. Stainless steel adapter component 4, adjustment device 5, and pagoda connector 6 are not easily worn by sand particles, resulting in a longer service life.
[0063] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.
Claims
1. A sand blasting apparatus comprising a sand storage hopper and a sand delivery tube, characterised in that, The sand blasting device further comprises: an adapter assembly, a first interface, a second interface and a third interface are formed on a surface of the adapter assembly, the first interface, the second interface and the third interface are communicated with each other in an interior of the adapter assembly, the first interface is connected to the sand storage hopper, the second interface is connected to the sand conveying pipe to communicate the sand conveying pipe with the sand storage hopper; an adjusting device, two ends of the adjusting device are communicated with each other, the adjusting device is capable of adjusting an opening degree between the two ends of the adjusting device, one end of the adjusting device is connected to the third interface, and the other end of the adjusting device is communicated with the outside.
2. The sandblasting device of claim 1, wherein The second interface is formed on a bottom of the adapter assembly.
3. The sandblasting device of claim 1, wherein, The number of the third interfaces is plural, the number of the adjusting devices corresponds to the number of the third interfaces, and the adjusting devices are respectively connected to the corresponding third interfaces.
4. The sandblasting device of claim 3, wherein An included angle between interface directions of two of the third interfaces is greater than 0.
5. The sandblasting device of claim 4, wherein One of the third interfaces is formed on a top of the adapter assembly, and the other of the third interfaces is formed on a side of the adapter assembly, and the interface directions of the two third interfaces are perpendicular to each other.
6. The sandblasting device of claim 3, wherein The number of the third interfaces is two, and the adapter assembly is a four-way joint.
7. The sandblasting device of claim 1, wherein The adapter assembly is detachably connected to the sand storage hopper, and the adapter assembly is detachably connected to the sand conveying pipe.
8. The sandblasting device of claim 1, wherein, The adapter assembly is threadedly connected to the sand storage hopper. The sand blasting device further comprises a union, a threaded end of the union is screwed to the second interface, and a union end of the union is connected to the sand conveying pipe.
9. A sandblasting device according to any one of claims 1-8, characterized in that The adjusting device is a ball valve.
10. The sandblasting device of claim 9, wherein The ball valve is threadedly connected to the adapter assembly.
11. A sandblasting device according to any one of claims 1-8, characterized in that The adapter assembly is made of stainless steel. The adjusting device is made of stainless steel.