Spray head for wide plasma cleaning machine

Abstract

The utility model discloses a spray head for a wide plasma cleaning machine. The spray head comprises a cleaning head body, the cleaning head body comprises a left clamping piece, a middle clamping piece and a right clamping piece which are arranged side by side and attached to one another, and a plurality of semicircular air outlets are formed in the two sides of the bottom of the middle clamping piece and the sides, close to the middle clamping piece, of the bottoms of the left clamping piece and the right clamping piece in the first direction. The multiple semicircular air outlet holes are located in the same position in the height direction, and when the semicircular air outlet holes are attached to each other, the semicircular air outlet holes in every two adjacent clamping pieces can be combined into a complete circular air outlet hole. According to the plasma cleaning device, gas leakage can be avoided in the plasma cleaning process, the product cleaning height is increased, and the cleaning effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of plasma cleaning machines, in particular to a nozzle for a wide-width plasma cleaning machine. Background Art

[0002] Plasma, also known as plasma state. Matter in the plasma state has properties similar to those of the gaseous state, such as good fluidity and diffusivity. However, since the basic constituent particles of plasma are ions and electrons, it also has many properties that are different from the gaseous state, such as good electrical conductivity and thermal conductivity. In particular, according to scientific calculations, the specific heat capacity of plasma is proportional to the temperature, and the specific heat capacity of plasma at high temperatures is often hundreds of times that of gas. Therefore, the application of plasma is very extensive, from our daily life to industry, agriculture, environmental protection, military, aerospace, energy, celestial bodies, etc., it has very important application value.

[0003] In order to obtain good material surface adhesion before surface treatment of workpieces, it is a common treatment method to use plasma for surface cleaning. Plasma is an ionized gaseous substance composed of positive and negative ions generated by the ionization of atomic groups after some electrons are deprived. It is mainly sprayed onto the surface of the workpiece by the nozzle of the plasma treatment device to achieve the treatment purpose.

[0004] The existing wide-width plasma cleaning machine nozzle is a two-piece upper and lower clamp structure. The gas directly enters the bottom clamp from the top clamp and is ejected from the outlet hole on the outlet plate installed on the lower surface of the bottom clamp. Since the outlet plate 18 is directly locked on the bottom clamp, there will be a gap between the bottom clamp, which will cause gas leakage. In addition, the setting of the outlet plate 18 will also result in insufficient cleaning height, and the desired cleaning effect cannot be achieved.

[0005] Therefore, it is necessary to provide a nozzle for a wide-width plasma cleaning machine to solve the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned shortcomings, the purpose of the utility model is to provide a nozzle for a wide-width plasma cleaning machine, which can avoid gas leakage during the plasma cleaning process, improve the cleaning height of the product, and ensure the cleaning effect.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is: a nozzle for a wide-width plasma cleaning machine, including a cleaning head body; the cleaning head body includes a left clip, a middle clip and a right clip arranged side by side and fitted to each other, and a plurality of semicircular air outlet holes are arranged on both sides of the bottom of the middle clip and on one side of the bottom of the left clip and the right clip close to the middle clip along a first direction, and the plurality of semicircular air outlet holes are located at the same position in the height direction, and when fitted to each other, the semicircular air outlet holes on two adjacent clips can be merged into a complete circular air outlet hole.

[0008] After the gas enters the cleaning head body, it passes through the electrode to form plasma gas, which is directly blown out from the circular air outlet and cleans the product to be cleaned without adding an air outlet sheet, thereby reducing the distance between the plasma gas and the product to be cleaned and improving the cleaning degree.

[0009] Furthermore, an arc groove is provided above the semicircular air outlet in the clip, and the arc groove is arranged to penetrate along the length direction of the cleaning head body. A strip groove is opened at the bottom of the arc groove along its length direction, and a plurality of placement bosses are arranged at intervals on the strip groove.

[0010] The arc-shaped groove is a semicircular structure. When two adjacent clips are combined, the two semicircular structures can be combined into an integral structure, that is, a quartz tube placement groove for placing the quartz tube.

[0011] Furthermore, the strip groove is located above the semicircular air outlet, and the placement boss extends in the direction close to the semicircular air outlet. By being arranged above the semicircular air outlet, the quartz tube is prevented from deforming and blocking the air outlet under the action of negative pressure. It should be noted that the extended placement boss cannot block the semicircular air outlet. Therefore, when setting the placement boss, when the length of the placement boss is greater than the distance between the strip groove and the semicircular air outlet, the semicircular air outlet needs to be staggered to ensure that it will not affect the plasma gas outlet cleaning product.

[0012] Furthermore, a terminal block and a connection block are respectively provided at both ends of the cleaning head body. The terminal block is used to connect the high-voltage wire and the electrode. The terminal block is provided in a convex shape, with the top used to connect the high-voltage wire and the two sides of the bottom used to connect the electrode. A protective shell is provided outside the terminal block to prevent the electrode from discharging to the outside and causing damage to the external equipment. A connecting groove is provided in the protective shell for the power supply to pass through and enter the quartz tube in the quartz tube placement groove.

[0013] The connecting seat can seal the end of the cleaning head body away from the wiring seat to prevent leakage of plasma gas.

[0014] Furthermore, the semicircular air outlet holes are arranged along the height direction of the cleaning head body, so as to ensure that the plasma gas can be vertically ejected from the cleaning head body along the height direction of the cleaning head body, thereby ensuring that sufficient air pressure is maintained when spraying and sucking the product to be cleaned.

[0015] Furthermore, it also includes an air inlet hole, an air inlet plate and an air flow channel, wherein the air inlet hole and the air inlet plate are arranged on the middle clamp from top to bottom in sequence, the air inlet plate is provided with a gas containing cavity, and the bottom of the gas containing cavity is provided with a plurality of air flow holes. When the gas enters the middle clamp through the air inlet hole, it first enters the gas containing cavity on the air inlet plate, and then flows into the air flow channel from the air flow holes after diffusion in the gas containing cavity. The air flow channel can introduce the gas into the left clamp and the right clamp, and form plasma gas after passing through the electrodes in the quartz tube placement groove, and finally spray out from the semicircular air outlet hole to clean the product.

[0016] Furthermore, the left and right clamps are symmetrically arranged with respect to the center line of the width direction of the middle clamp, so that the gas entering the left and right clamps is uniform, thereby ensuring that the amount of plasma gas subsequently ejected from the semicircular gas outlet is also uniform.

[0017] Furthermore, the left clip, the middle clip and the right clip are locked by transversely arranged screws, and the left clip is provided with a screw countersunk hole. The left clip, the middle clip and the right clip are detachable by screw locking, and when one of the clips is damaged or needs to be cleaned, it is convenient for the user to replace and clean it in time.

[0018] Beneficial effects of the utility model:

[0019] In the utility model, the cleaning head body, the left clamp, the middle clamp, the right clamp and the semicircular air outlet cooperate with each other. After the gas enters the cleaning head body, it passes through the electrode to form plasma gas. The plasma gas is directly blown out from the circular air outlet and cleans the product to be cleaned. There is no need to add an air outlet sheet, thereby reducing the distance between the plasma gas and the product to be cleaned and improving the cleaning degree. The combined structure of the left clamp, the middle clamp and the right clamp can effectively avoid gas leakage during the plasma cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an isometric view of the overall structure of an embodiment of the utility model;

[0021] Figure 2 It is an isometric view of the overall structure of an embodiment of the utility model from another viewing angle;

[0022] Figure 3 This is an isometric view of the overall structure of the left clip of an embodiment of the utility model;

[0023] Figure 4 for Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0024] Figure 5 This is an isometric view of the overall structure of the middle clip of an embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of the overall structure of an air intake plate according to an embodiment of the utility model;

[0026] Figure 7 It is a partial structural cross-sectional schematic diagram of an embodiment of the utility model;

[0027] Figure 8 This is a schematic diagram of the structure of the left clip portion of an embodiment of the utility model;

[0028] Fig. 9 It is a schematic diagram of the overall structure of a nozzle for a wide-width plasma cleaning machine in the prior art;

[0029] In the figure: 1. cleaning head body; 2. wiring socket; 3. connecting socket; 4. left clamp; 5. middle clamp; 6. right clamp; 7. air inlet; 8. semicircular air outlet; 9. air inlet plate; 10. gas containing chamber; 11. air flow hole; 12. air flow channel; 13. guide groove; 14. quartz tube placement groove; 15. arc groove; 16. strip groove; 17. placement boss; 18. air outlet plate. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0031] See attached Figures 1 to 9 As shown, a nozzle for a wide-width plasma cleaning machine in this embodiment includes a cleaning head body 1; the cleaning head body 1 includes a left clip 4, a middle clip 5 and a right clip 6 arranged side by side and fitted together, and a plurality of semicircular air outlet holes 8 are arranged on both sides of the bottom of the middle clip 5 and on one side of the bottom of the left clip 4 and the right clip 6 close to the middle clip 5 along a first direction, and the plurality of semicircular air outlet holes 8 are located at the same position in the height direction, and when fitted together, the semicircular air outlet holes 8 on two adjacent clips can be merged into a complete circular air outlet hole.

[0032] After the gas enters the cleaning head body 1, it passes through the electrode to form plasma gas, which is directly blown out from the circular air outlet and cleans the product to be cleaned without adding an air outlet sheet, thereby reducing the distance between the plasma gas and the product to be cleaned and improving the cleaning degree.

[0033] In some embodiments, the diameter of the semicircular air outlet hole 8 is 0.5 mm, and the semicircular air outlet holes 8 on two adjacent clips can be combined into a complete circular air outlet hole with a diameter of 0.5 mm.

[0034] In some embodiments, the distance between the plasma gas and the product to be cleaned can be reduced by 1.5 mm to avoid the phenomenon of insufficient cleaning height during cleaning.

[0035] The first direction refers to the length direction along the cleaning head body 1 .

[0036] In some embodiments, the cleaning head body 1 may also consist of only a left clip 4 or a right clip 6 and a middle clip 5, respectively. The middle clip 5 is sealed on a side away from the left clip 4 or the right clip 6. In this embodiment, there is only one exhaust hole, which will not affect the cleaning of the product to be cleaned, and the three-piece design can improve the cleaning efficiency of the product to be cleaned.

[0037] See attached Figures 7 to 8 , an arc groove 15 is respectively arranged above the semicircular air outlet 8 in the clip, and the arc groove 15 is arranged through the length direction of the cleaning head body 1, and a strip groove 16 is opened at the bottom of the arc groove 15 along its length direction, and a plurality of placement bosses 17 are arranged at intervals on the strip groove 16. The plurality of placement bosses 17 are arranged in an array along the length direction of the strip groove 16, and are arranged at the bottom of the arc groove 15, so that when the quartz tube equipped with the electrode is placed in the quartz tube placement groove 14 formed by the two arc grooves 15, it plays a supporting role for the quartz tube, so as to avoid the quartz tube being blown out of shape and pressing the air outlet, uneven plasma outlet, and poor cleaning effect due to the long-term use of ventilation and large internal negative pressure of the wide-width plasma cleaning machine.

[0038] The arc groove 15 is a semicircular structure. When two adjacent clips are merged, the two semicircular structures can be merged into an integral structure, that is, a quartz tube placement groove 14 for placing the quartz tube.

[0039] In some embodiments, the diameter of the quartz tube is 12 mm, and the diameter of the quartz tube placement groove 14 is 12.5 mm, that is, the distance between the quartz tube placement groove 14 and the wall of the quartz tube is small. Under long-term negative pressure, the middle part of the quartz tube will be deformed, and the multiple placement bosses 17 arranged at intervals can support the quartz tube at multiple points under the quartz tube to ensure the cleaning efficiency.

[0040] In some embodiments, the number and spacing length of the bosses 17 are not limited, as long as they can support the quartz tube and will not block the semicircular air outlet 8.

[0041] The strip groove 16 is located above the semicircular air outlet 8, and the placement boss 17 extends in the direction close to the semicircular air outlet 8. By being arranged above the semicircular air outlet 8, the quartz tube is prevented from deforming and blocking the air outlet under the action of negative pressure. It should be noted that the extended placement boss 17 cannot block the semicircular air outlet 8. Therefore, when the placement boss 17 is arranged, when the length of the placement boss 17 is greater than the distance between the strip groove 16 and the semicircular air outlet 8, the semicircular air outlet 8 needs to be staggered to ensure that it will not affect the plasma outlet cleaning product.

[0042] The two ends of the cleaning head body 1 are respectively provided with a wiring seat 2 and a connecting seat 3. The wiring seat 2 is used to connect the high-voltage line and the electrode. The wiring seat 2 is arranged in a convex shape, and its top is used to connect the high-voltage line, and the two sides of the bottom are used to connect the electrode. A protective shell is arranged outside the wiring seat 2 to prevent the electrode from discharging to the outside and causing damage to the external equipment. A connecting groove for the power supply machine to pass through and enter the quartz tube in the quartz tube placement groove 14 is provided in the protective shell.

[0043] The connecting seat 3 can seal the end of the cleaning head body 1 away from the wiring seat 2 to prevent leakage of plasma gas.

[0044] The semicircular air outlet 8 is arranged along the height direction of the cleaning head body 1 to ensure that the plasma gas can be vertically ejected from the cleaning head body 1 along the height direction of the cleaning head body 1, thereby ensuring sufficient air pressure when spraying and sucking the product to be cleaned.

[0045] It also includes an air inlet hole 7, an air inlet plate 9 and an air flow channel 12. The air inlet hole 7 and the air inlet plate 9 are arranged on the middle clamp 5 from top to bottom. The air inlet plate 9 is provided with a gas containing cavity 10, and a plurality of air flow holes 11 are provided at the bottom of the gas containing cavity 10. When the gas enters the middle clamp 5 through the air inlet hole 7, it first enters the gas containing cavity 10 on the air inlet plate 9, and then flows into the air flow channel 12 from the air flow holes 11 after diffusion in the gas containing cavity 10. The air flow channel 12 can introduce the gas into the left clamp 4 and the right clamp 6, and form plasma gas after passing through the electrodes in the quartz tube placement groove 14, and finally spray out from the semicircular air outlet hole 8 to clean the product.

[0046] The middle clamping piece 5 , the left clamping piece 4 and the right clamping piece 6 are all provided with guide grooves 13 , through which the gas is introduced into the gas flow channel 12 .

[0047] The left clamp 4 and the right clamp 6 are symmetrically arranged with respect to the center line of the width direction of the middle clamp 5. The gas entering the left clamp 4 and the right clamp 6 is uniform, thereby ensuring that the amount of plasma gas subsequently ejected from the semicircular gas outlet 8 is also uniform. In some embodiments, the middle clamp 5 is symmetrically arranged with respect to the center line of its width direction.

[0048] The left clip 4, the middle clip 5 and the right clip 6 are locked together by transversely arranged screws, and a screw countersunk hole is provided on the left clip 4. The left clip 4, the middle clip 5 and the right clip 6 are detachable by screw locking, and when one of the clips is damaged or needs to be cleaned, it is convenient for the user to replace and clean it in time.

[0049] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A nozzle for a wide-width plasma cleaning machine, characterized in that: It includes a cleaning head body; the cleaning head body includes a left clip, a middle clip and a right clip arranged side by side and fitted to each other, a plurality of semicircular air outlet holes are arranged on both sides of the bottom of the middle clip and on one side of the bottom of the left clip and the right clip close to the middle clip along a first direction, and the plurality of semicircular air outlet holes are located at the same position in the height direction, and when fitted to each other, the semicircular air outlet holes on two adjacent clips can be merged into a complete circular air outlet hole.

2. A nozzle for a wide-width plasma cleaning machine according to claim 1, characterized in that: An arc groove is arranged above the semicircular air outlet in the clip, and the arc groove is arranged through the length direction of the cleaning head body. A strip groove is opened at the bottom of the arc groove along its length direction, and a plurality of placement bosses are arranged at intervals on the strip groove.

3. A nozzle for a wide-width plasma cleaning machine according to claim 2, characterized in that: The strip groove is located above the semicircular air outlet, and the placement boss extends toward a direction close to the semicircular air outlet.

4. The nozzle for a wide-width plasma cleaning machine according to claim 1, characterized in that: A wiring seat and a connecting seat are respectively arranged at two ends of the cleaning head body.

5. The nozzle for a wide-width plasma cleaning machine according to claim 1, characterized in that: The semicircular air outlet holes are arranged along the height direction of the cleaning head body.

6. The nozzle for a wide-width plasma cleaning machine according to claim 1, characterized in that: It also includes an air inlet hole, an air inlet plate and an air flow channel. The air inlet hole and the air inlet plate are arranged on the middle clip in sequence from top to bottom. A gas containing cavity is opened on the air inlet plate, and a plurality of air flow holes are opened at the bottom of the gas containing cavity.

7. The nozzle for a wide-width plasma cleaning machine according to claim 1, characterized in that: The left clamping piece and the right clamping piece are symmetrically arranged with respect to a center line where the width direction of the middle clamping piece is located.

8. The nozzle for a wide-width plasma cleaning machine according to claim 1, characterized in that: The left clamp, the middle clamp and the right clamp are locked together by transversely arranged screws, and a screw countersunk hole is provided on the left clamp.

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