Fluid Knife
By designing the combination of the central accommodation space, flow guide and lead hole in the fluid knife, the problem of discharge outlet blockage caused by foreign objects caused by foreign objects is solved, and the efficiency of foreign objects is achieved is achieved, reducing the convenience of efficient discharge and maintenance of foreign objects. Maintenance time and cost.
Patent Information
- Application Number
- CN202110928462.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-08-13
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2041-08-13
AI Technical Summary
During the cleaning process, existing liquid knives and air knives are prone to blockage of the discharge outlet due to foreign matter blockage, resulting in incomplete cleaning and reduced production yield. Moreover, due to the small and complex discharge outlets, the disassembly and cleaning and maintenance time is long, and the efficiency is inefficient.
A fluid knife is designed, which includes a central concave accommodating space, an injection unit, an exhaust unit and a flow guide. The inclined surface of the flow guide portion forms an angle of 120° to 180° with the discharge port, and is combined with the lead hole on the cover plate. The centralized flow discharge of foreign objects is realized, and the cleaning frequency of large foreign objects is reduced through the derivation hole.
It realizes the effective discharge of foreign matter without disassembly, reduces maintenance time and cost, and improves the maintenance convenience and production efficiency of the fluid knife.
Smart Images
Figure CN115703113B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a fluid jetting knife, in particular to a fluid jetting knife which is easy to discharge foreign matter and maintain the fluid outlet effect. Background Art
[0002] Generally, in the manufacturing process of LCD color filters, printed circuit boards, etc., a wet cleaning machine is used to clean the surface with chemical solutions. The wet cleaning machine is equipped with liquid knife and air knife equipment. The cleaning liquid or gas is poured into the liquid knife or air knife, and the pressure of the liquid or gas enables the liquid knife or air knife to produce a comprehensive and uniform flushing or blowing effect.
[0003] Because the gap between the outlets of the liquid knife and the air knife is very small, and a comprehensive and uniform flushing or blowing effect is required. If there are tiny foreign objects in the cleaning liquid or gas that enter the liquid knife or the air knife, it is easy to cause the outlet of the liquid knife and the air knife to be blocked, which will cause incomplete cleaning or blowing, and reduce the production yield. Therefore, when the outlet of the liquid knife or the air knife is blocked, it is necessary to disassemble and clean the liquid knife or the air knife. So that the foreign objects inside can be removed and the cleaning effect can be maintained. However, because the outlet of the liquid knife or the air knife is extremely small and the parts are relatively complicated, each disassembly, cleaning and correction of the outlet gap often takes a considerable amount of time, resulting in low efficiency. Summary of the invention
[0004] The main purpose of the present invention is to provide a fluid knife that can discharge foreign matter without disassembly.
[0005] Another object of the present invention is to provide a fluid knife that is easy to maintain and can reduce maintenance time.
[0006] To achieve the above object, the present invention provides a fluid knife, comprising:
[0007] A body, a central recess of which is provided with a containing space, a top of which is provided with at least one injection unit connected with the containing space; a bottom of which is provided with a discharge unit; and a body and a side of which is provided with at least one discharge outlet obliquely through the discharge unit;
[0008] A guide portion is disposed between the accommodating space and the discharge unit, the top of the guide portion has at least one inclined surface, the bottom of the inclined surface is connected to each of the discharge ports, and each of the discharge ports has an angle with the inclined surface, the angle being 120° to 180°;
[0009] A cover plate is covered on the main body, and at least one outlet hole is formed on the cover plate. The diameter of the outlet hole is larger than the diameter of the outlet, and the outlet hole is generally located at the intersection of the inclined surface and the outlet; the outlet hole can be selectively closed.
[0010] As a preferred embodiment of the above technical solution, preferably, the guide portion is integrally formed on the main body.
[0011] As a preferred embodiment of the above technical solution, preferably, the guide portion has two inclined surfaces, which are inclined downward from the center to both sides, and the main body is provided with a discharge outlet on both sides relative to the discharge unit.
[0012] As a preferred embodiment of the above technical solution, preferably, the inclined surface has an inclination from top to bottom and from back to front.
[0013] As a preferred embodiment of the above technical solution, preferably, the discharge unit is composed of a spring piece part, a discharge groove and an adjustment part, the discharge groove is recessed on the spring piece part, and the discharge groove is connected to the accommodating space; the adjustment part can adjust the distance between the spring piece part and the cover plate.
[0014] As a preferred embodiment of the above technical solution, preferably, the adjustment portion is composed of a base and a plurality of adjustment rods, the plurality of adjustment rods can reciprocate on the base, and the ends of the plurality of adjustment rods can be supported on the spring sheet portion to adjust the distance between the spring sheet portion and the cover plate.
[0015] As a preferred embodiment of the above technical solution, preferably, each injection unit includes an injection port and a buffer portion, the injection port is arranged at the topmost end of the main body, the buffer portion is arranged below the injection port, and the cross-sectional area of the buffer portion is larger than the cross-sectional area of the injection port.
[0016] As a preferred embodiment of the above technical solution, preferably, the accommodating space has a relaxation interval area above and a saturation area below, the relaxation interval area is connected to the injection unit; the saturation area is connected to the guide portion.
[0017] As a preferred embodiment of the above technical solution, preferably, the diameter of the discharge port is 120 μm; the diameter of the outlet hole is 4 mm.
[0018] As a preferred embodiment of the above technical solution, preferably, a confluence groove is provided in the accommodating space of the main body, and the position of the confluence groove overlaps with the outlet hole.
[0019] The fluid knife provided by the present invention can produce a centralized flow guiding effect through the inclined surface of the flow guiding part. The foreign matter is guided to the discharge port position by the flow pressure, and the angle between the discharge port and the inclined surface is flat, so that the foreign matter can be easily discharged and not easily gathered. In addition, larger foreign matter can also be removed through the outlet hole of the cover plate, which can reduce the chance and number of times of disassembling the fluid knife, and relatively reduce the time and cost of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0021] Figure 1 This is a three-dimensional appearance diagram of a preferred embodiment of the present invention.
[0022] Figure 2 It is a three-dimensional exploded view of a preferred embodiment of the present invention.
[0023] Figure 3 It is a front view of the body of a preferred embodiment of the present invention.
[0024] Figure 4 for Figure 1 Schematic diagram of the cross section at the position of section line 4-4.
[0025] Figure 5 Schematic diagram of fluid flow in a preferred embodiment of the present invention.
[0026] Figure 6 FIG. 1 is a schematic diagram of the flow of fluid at the inclined surface of the guide portion according to a preferred embodiment of the present invention.
[0027] Figure 7 Schematic diagram of the gap position adjustment action between the discharge unit and the cover plate according to a preferred embodiment of the present invention.
[0028] Figure 8 It is a front view of the main body of the second preferred embodiment of the present invention.
[0029] Fig. 9 The second preferred embodiment of the present invention Figure 8 A partial enlarged view of .
[0030] Among them, 10 is a main body; 11 is a containing space; 111 is a relaxing spacer; 112 is a saturated zone; 12 is an injection unit; 121 is an injection port; 122 is a buffer; 13 is a discharge unit; 131 is a spring portion; 132 is a discharge groove; 133 is a base; 134 is an adjustment rod; 14 is a discharge port; 15 is a confluence groove; 20 is a guide portion; 21 is an inclined surface; 30 is a cover plate; 31 is a lead-out hole; G is a gap; and θ is an angle. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0032] A main body 10, a central recessed accommodating space 11 is provided, three injection units 12 are provided at the top of the accommodating space 11 and communicate with the accommodating space 11; a discharge unit 13 is provided at the bottom of the accommodating space 11; the main body 10 is provided with two discharge outlets 14 on two sides of the discharge unit 13 obliquely away from the accommodating space 11, and the discharge outlets 14 can be communicated with the accommodating space 11; the upper part of the accommodating space 11 is a relaxation interval 111, and the lower part is a saturation zone 112, the relaxation interval 111 is connected to the injection unit 12; the saturation zone 112 is connected to the discharge unit 13; the injection units 12 respectively include an injection port 121 and a buffer portion 122, the injection ports 121 are provided at the top of the main body 10, the buffer portion 122 is provided below the injection port 121 and communicates with the relaxation interval 111 of the accommodating space 11, and the buffer portion 122 The cross-sectional area is larger than the cross-sectional area of the injection port 121; the discharge unit 13 is composed of a spring portion 131, a discharge groove 132 and an adjustment portion. The spring portion 131 has a single sheet structure with elasticity. The discharge groove 132 is recessed on the spring portion 131. The discharge groove 132 is connected to the saturated zone 112 below the accommodating space 11; the adjustment portion can adjust the position of the spring portion 131. The adjustment portion is a base 133 and a plurality of adjustment portions. The base 133 and the spring portion 131 are spaced apart from each other. The adjusting rods 134 in this embodiment are screws screwed on the base 133. The adjusting rods 134 can reciprocate on the base 133. The ends of the adjusting rods 134 are against the spring portion 131 to adjust the position of the spring portion 131. The discharge ports 14 are also disposed on the spring portion 131. The diameter of the discharge port 14 is 120 μm.
[0033] A guide portion 20 is disposed between the accommodating space 11 of the main body 10 and the discharge unit 13, that is, below the saturation zone 112 of the accommodating space 11 and above the discharge groove 132. The guide portion 20 is integrally formed and disposed on the main body 10. It can also be independently processed and installed in the main body 10, or formed in other ways; the top of the guide portion 20 has two inclined surfaces 21, which are inclined from the center of the guide portion 20 to both sides, and the bottom position of the two inclined surfaces 21 is connected to the two discharge ports 14. There is an angle θ between the two discharge ports 14 and the two inclined surfaces 21, and the angle is 120°~180°; in this embodiment, the angle θ is 150°, so that the intersection between the two discharge ports 14 and the two inclined surfaces 21 will not form a large turning point; the inclined surface 21 has an inclination from top to bottom.
[0034] A cover plate 30 is covered on the main body 10, and two outlet holes 31 are formed on the cover plate 30. The diameter of the outlet hole 31 is 4 mm, which is larger than the diameter of the two outlets 14, and the positions of the two outlet holes 31 are roughly set at the intersection of the bottom of the inclined surface 21 of the guide part 20 and the outlet 14; the outlet hole 31 can be selectively closed and opened by a plug or a bolt, and is usually in a closed state; in addition, an adjustable gap G is formed between the cover plate 30 and the outlet slot 132 at the front end of the spring piece part 131, and the position of the spring piece 131 is moved by the adjustment rod 134 to adjust the gap between the outlet slot and the cover plate 30, so as to control the size of the discharge amount.
[0035] When using, please refer to Figure 5 As shown, when the fluid knife is in use, a cleaning liquid or a fluid such as a gas is first injected into the main body 10 from the injection port 121 of the injection unit 12 above the main body 10. The fluid will flow from top to bottom due to gravity, and will first flow through the injection port 121 to the buffer portion 122. The cross-sectional area of the buffer portion 122 is larger than the cross-sectional area of the injection port 121, so the fluid flowing into the injection port 121 will first remain in the buffer portion 122. Since the cross-sectional area of the buffer portion 122 is larger than that of the injection port 121, the buffer portion 122 can evenly distribute the internal fluid to avoid concentration in a single position; then, the fluid in the buffer portion 122 flows from the mitigation interval area 111 to the saturation area 112. The fluid in the saturation area 112 will be gathered and evenly discharged from the gap G formed between the discharge slot 132 of the discharge unit 13 and the cover plate 30, and different functions such as coating, cleaning or drying will be evenly performed.
[0036] Please refer to Figure 6As shown in the figure, when the fluid flows from the saturated area 112 of the accommodating space 11 to the discharge groove 132 of the discharge unit 13, the fluid will first flow through the position of the guide portion 20. Due to the pressure of the fluid and the influence of gravity, the inclined surface 21 of the guide portion 20 will cause the foreign matter to fall along the inclined surface 21 to the bottom of the inclined surface 21 and be discharged through the discharge port 14. Because the aperture of the discharge port 14 is larger than the gap between the cover plate 30 and the discharge groove 132, a relatively larger outlet can be generated; the foreign matter can The fluid is discharged directly through the discharge port 14 along with the fluid, so that the gap G between the discharge slot 132 of the discharge unit 13 and the cover plate 30 can be kept unobstructed and not easily blocked by foreign matter. In this way, the coating of the fluid knife can be smooth, the yield rate is maintained, and the maintenance time is reduced. At the same time, because a relatively gentle intersection angle θ is maintained between the discharge port 14 and the inclined surface 21, the fluid can flow smoothly, so that impurities can be successfully discharged and are not easily retained in the accommodating space 11 or the discharge unit 13.
[0037] In addition, when encountering foreign matter larger than the aperture of the discharge port 14 (greater than 120 μm), so that the discharge port 14 cannot be discharged, or when cleaning and maintenance operations are required inside, the outlet hole 31 of the cover plate 30 can be opened, such as removing the plug or bolt, and the user can enter the accommodating space 11 through the discharge port 14 to clean the larger foreign matter or impurities. After cleaning, the discharge port 14 can be closed.
[0038] See also Figure 7 As shown, the spring portion 131 is supported by the adjusting rods 134 and can adjust the size of the gap G between the spring portion 131 and the cover plate 30. In this way, the discharge groove 132 and the cover plate 30 will be a flat surface without any obstacles, so that the fluid discharged from the discharge groove 132 will not be disturbed and will not cause diversion or uneven flow.
[0039] See also Figure 8 and 9 As shown, it is a second preferred embodiment provided by the present invention, and its main structure is the same as the previous preferred embodiment. The same structure is represented by the same symbols and will not be repeated. Among them:
[0040] The guide portion 20 has only one inclined surface 21, which is inclined from one side to the other side, and the discharge port 14 is provided at the bottom edge of the inclined surface 21 of the guide portion 20. Through the flow in a single direction. The fluid can flow obliquely in the same direction. In addition, the main body 10 is provided with a confluence groove 15 at a position relative to the outlet hole 31 of the cover plate 30. The confluence groove 15 is connected to the saturated zone 112. When foreign matter is not discharged from the discharge port 14 immediately, it can be accumulated in the confluence groove 15. Moreover, when the outlet hole 31 of the cover plate 30 is opened, the confluence groove 15 is opposite to the outlet hole 31, which can be cleaned in a centralized manner to improve the cleaning efficiency.
[0041] The fluid knife of the present invention can produce a good effect of removing foreign matter through the discharge port and the outlet hole, can maintain long-term operation without disassembly and maintenance, and can reduce maintenance costs.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A fluid knife, characterized in that: Contains: A body, a central recess of which is provided with a containing space, a top of which is provided with at least one injection unit connected with the containing space; a bottom of which is provided with a discharge unit; and a body and a side of which is provided with at least one discharge outlet obliquely through the discharge unit; A guide portion is disposed between the accommodating space and the discharge unit, the top of the guide portion has at least one inclined surface, the bottom of the inclined surface is connected to each of the discharge ports, and each of the discharge ports has an angle with the inclined surface, the angle being 120° to 180°; a cover plate, which covers the body, and is provided with at least one outlet hole, the diameter of which is larger than the diameter of the outlet, and the position of which is generally located at the intersection of the inclined surface and the outlet; the outlet hole can be selectively closed; The discharge unit is composed of a spring piece, a discharge slot and an adjustment part. The discharge slot is recessed on the spring piece and communicates with the accommodating space. The adjustment part can adjust the distance between the spring piece and the cover plate. A confluence groove is arranged in the accommodation space of the main body, and the position of the confluence groove overlaps with the outlet hole.
2. The fluid knife according to claim 1, characterized in that: The flow guide portion is integrally formed on the main body.
3. The fluid knife according to claim 1, characterized in that: The guide portion has two inclined surfaces, which are inclined downward from the center toward the two sides. The body is respectively provided with a discharge port on two sides relative to the discharge unit.
4. The fluid knife according to any one of claims 1 to 3, characterized in that: The inclined surface is inclined from top to bottom and from back to front.
5. The fluid knife according to claim 1, characterized in that: The adjusting part is composed of a base and a plurality of adjusting rods. The plurality of adjusting rods can reciprocate on the base. The ends of the plurality of adjusting rods can be supported on the elastic sheet part to adjust the distance between the elastic sheet part and the cover plate.
6. The fluid knife according to claim 1, characterized in that: Each of the injection units includes an injection port and a buffer portion. The injection port is arranged at the top of the main body, and the buffer portion is arranged below the injection port. The cross-sectional area of the buffer portion is larger than the cross-sectional area of the injection port.
7. The fluid knife according to claim 1, characterized in that: The upper part of the accommodating space is a relaxation interval zone, and the lower part is a saturation zone. The relaxation interval zone is connected to the injection unit; and the saturation zone is connected to the guide portion.
8. The fluid knife according to claim 1, characterized in that: The diameter of the outlet is 120 μm; the diameter of the outlet hole is 4 mm.