A water blowing apparatus and a water blowing method

Abstract

The application discloses a water blowing device and a water blowing method, and relates to the technical field of product surface cleaning devices. The water blowing device comprises an aluminum profile frame, a PLC control cabinet mounted on the side of the aluminum profile frame, a water blowing support fixedly arranged on the top surface of the aluminum profile frame, and a protective cover arranged on the outside of the water blowing support, wherein a rectangular opening is formed in the top of the protective cover; a rodless air cylinder is arranged on the water blowing support, high-pressure air nozzles are arranged on the two sides of the sliding part of the rodless air cylinder, two oppositely arranged limiting clamps are arranged on the top of the sliding part of the rodless air cylinder, and limiting screws are arranged on the side surfaces of the limiting clamps. The rodless air cylinder drives the product to reciprocate, and the air curtain formed by the air blowing is matched, so that multi-angle cross blowing of the product surface is realized, the blowing coverage is effectively improved, and the water blowing device has the advantages of high cleaning efficiency and no damage to the product surface.

Description

Technical Field

[0001] This invention relates to the field of product surface cleaning equipment technology, specifically to a water blowing device and water blowing method. Background Technology

[0002] In industrial production, after products undergo washing, cleaning, or wet processing, a large amount of moisture often remains on their surface. If this moisture is not removed in time, it will affect the smooth progress of subsequent drying, packaging, coating, and other processes, and may even lead to quality defects such as watermarks and rust on the product surface.

[0003] Currently, there are two main types of surface dehydration equipment commonly found on the market: One type is the one-way air knife blowing device. This type of equipment places the product on a conveyor belt and allows it to pass through the air shower area in one direction, where a fixed high-pressure air nozzle blows the surface of the product. However, because the product only passes through once in one direction, the blowing time is short. For products with complex shapes or irregular surface structures, a single pass is often insufficient to completely remove moisture, requiring multiple placements and repeated blowing, which seriously affects production efficiency.

[0004] Another type is the fixed-point high-pressure air nozzle purging device. This type of equipment has high-pressure air nozzles installed at fixed locations, and the product is placed in the designated location for fixed-point purging. Its drawbacks are: the high-pressure air nozzles are in fixed positions, the purging direction is one-way, and for irregularly shaped or curved products, the coverage of the air nozzles is not comprehensive enough, resulting in purging dead zones, which means that moisture in some areas cannot be effectively removed.

[0005] In view of the problems existing in the above-mentioned prior art, there is an urgent need to provide a water blowing device that can perform comprehensive and efficient blowing and cleaning of product surfaces, so as to overcome the technical defects of incomplete unidirectional air shower blowing and insufficient coverage of fixed point air cutting. Summary of the Invention

[0006] 1. Technical problem to be solved: To address the problems existing in the prior art, the present invention aims to provide a water blowing device and method that can achieve multi-angle cross-blowing of the product surface through reciprocating motion combined with air curtains formed by relative blowing, effectively improving the blowing coverage and increasing cleaning efficiency.

[0007] 2. Technical Solution: To solve the above problems, the present invention adopts the following technical solution.

[0008] A water blowing device, comprising: Aluminum profile frame; The PLC control cabinet is installed on the side of the aluminum profile frame; A water blowing bracket is mounted on the aluminum profile frame; A protective cover is installed on the outside of the blower bracket. The protective cover is fixedly connected to the top surface of the aluminum profile frame. A rectangular opening for placing products is provided on the top of the protective cover. The water blowing bracket includes: The frame is fixedly mounted on the top surface of the aluminum profile frame; A rodless cylinder is mounted on the frame, and the sliding part of the rodless cylinder reciprocates along the X-axis. Two sets of high-pressure air nozzles are respectively installed on the frame and arranged opposite each other on both sides of the sliding part of the rodless cylinder. Each high-pressure air nozzle is used to connect to the air source and spray gas. The two sets of high-pressure air nozzles blow air towards each other to form an air curtain. Two limiting clamps are set on the top of the sliding part of the rodless cylinder. The two limiting clamps are arranged opposite to each other, and each limiting clamp is provided with a limiting screw on its side. The limiting clamps and the limiting screws together form a limiting space for limiting the product. The rectangular opening is located directly above the limiting space. Multiple limiting screws are respectively disposed on the sides of the two limiting plates. The limiting screws extend from the sides of the limiting plates into the limiting space to limit the range of movement of the product within the limiting space. The PLC control cabinet is connected to the rodless cylinder and the high-pressure air nozzle respectively. The PLC control cabinet has a built-in PLC control program, which is used to control the high-pressure air nozzle to spray gas at regular intervals and control the sliding part of the rodless cylinder to reciprocate along the X-axis, so as to realize the linkage between the blowing action of the high-pressure air nozzle and the reciprocating motion of the rodless cylinder.

[0009] Preferably, the PLC control cabinet is further provided with a timing controller, which is connected to the first solenoid valve and the second solenoid valve respectively. The timing controller is used to control the opening and closing of the first solenoid valve and the second solenoid valve according to a preset time sequence, so that the high-pressure air nozzle continuously or intermittently sprays gas during the process of the rodless cylinder driving the product to reciprocate.

[0010] Preferably, the water blowing bracket further includes a U-shaped bracket, which is fixedly connected to the bottom of the frame and spans the upper and lower sides of the frame. The two pillars of the U-shaped bracket are located above and below the frame, respectively, and the two sets of high-pressure air nozzles are respectively installed on the inner sides of the two pillars of the U-shaped bracket.

[0011] Preferably, the number of high-pressure air nozzles is eight, and four high-pressure air nozzles are provided on each side of the sliding part of the rodless cylinder.

[0012] Preferably, the limiting clamp is made of POM material.

[0013] Preferably, the limiting screw is made of nylon.

[0014] Preferably, each of the limiting clamps has four limiting screws on its side.

[0015] Preferably, the high-pressure air nozzle has a universal ball joint inside, and the air outlet of the high-pressure air nozzle is flat.

[0016] Preferably, the PLC control cabinet is equipped with a first solenoid valve and a second solenoid valve. The first solenoid valve is connected between the air source and the high-pressure air nozzle, and the second solenoid valve is connected between the air source and the rodless cylinder.

[0017] A method for blowing water includes the following steps: Place the product into the limiting space through the rectangular opening; Activate the linkage control mode: Through the PLC control program, the first solenoid valve and the second solenoid valve are synchronously controlled according to a preset timing sequence; the preset timing sequence includes the air blowing sequence of the first solenoid valve and the reversing sequence of the second solenoid valve, and the air blowing sequence and the reversing sequence overlap at least partially in time; During the process of the sliding part of the rodless cylinder driving the product to reciprocate along the X-axis, the first solenoid valve controls the high-pressure air nozzle to spray gas at regular intervals, so that the two sets of high-pressure air nozzles arranged opposite each other blow air to form an air curtain, thereby performing reciprocating cross-blowing on the surface of the product to remove moisture from the product surface.

[0018] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this invention has the following advantages: (1) This invention uses a rodless cylinder mounted on the frame of the blower bracket to drive the product to reciprocate along the X-axis. High-pressure air nozzles are arranged opposite each other on both sides of the sliding part of the rodless cylinder. These two sets of nozzles are positioned opposite each other, forming an air curtain along the Y-axis through opposing airflow. The product passes through the Y-axis air curtain during its X-axis reciprocating motion, creating a cross-blowing effect. This ensures that all parts of the product surface are covered by the high-pressure air curtain, solving the problem of incomplete coverage of irregularly shaped or curved products by fixed-point high-pressure air nozzle blowing devices.

[0019] (2) The present invention uses a rodless cylinder to drive the product to reciprocate in the air curtain area, so that the product can be repeatedly purged after a single placement, without the need for multiple placements as required by the one-way air knife purging device, thus saving purging time and improving production efficiency.

[0020] (3) The present invention provides two POM material limiting plates at the top of the sliding part of the rodless cylinder, and nylon material limiting screws are installed on the side of the limiting plates. Both POM material and nylon material have good wear resistance and impact resistance, which can limit the range of motion of the product in reciprocating motion, ensure that the product is always within the effective blowing area of ​​the air curtain, and avoid scratches or bumps to the product surface.

[0021] (4) The present invention integrates the water blowing bracket onto the aluminum profile frame, and the water blowing bracket is covered with a protective cover. The overall structure is compact and occupies little space. The PLC control cabinet is installed on the side of the aluminum profile frame. The operator can control the automatic operation of the entire purging process by operating the start switch. The automation level is high and the operation is simple. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the water blowing device of the present invention; Figure 2 This is a schematic diagram of the structure of the water blowing bracket of the present invention; Figure 3 This is a structural schematic diagram of the water blowing bracket of the present invention from another perspective.

[0023] The labels in the figures are explained as follows: 1. Aluminum profile frame; 2. PLC control cabinet; 3. Protective cover; 4. Rectangular opening; 5. Frame; 6. U-shaped bracket; 7. Rodless cylinder; 8. High-pressure air nozzle; 9. Limiting clamp; 10. Limiting screw. Detailed Implementation

[0024] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of protection of the present invention.

[0025] like Figure 1 and Figure 2 As shown, the water blowing device provided by the present invention includes an aluminum profile frame 1, a PLC control cabinet 2, a protective cover 3, and a water blowing bracket disposed inside the protective cover 3.

[0026] The aluminum profile frame 1 serves as the supporting base for the entire device. It is constructed from spliced ​​aluminum profiles and features advantages such as light weight, high strength, and corrosion resistance. The top surface of the aluminum profile frame 1 is a flat surface used to install the water blowing bracket; the PLC control cabinet 2 is installed on the side of the aluminum profile frame 1.

[0027] like Figure 1As shown, the protective cover 3 is installed on the outside of the water blowing bracket, and the bottom of the protective cover 3 is fixedly connected to the top surface of the aluminum profile frame 1. A rectangular opening 4 is provided at the top of the protective cover 3, which is used by the operator to place the product into the water blowing bracket from top to bottom. The protective cover 3 serves two purposes: firstly, it provides protection, preventing water from splashing into the external working environment during high-pressure gas purging; secondly, it provides enclosure, creating an effective purging area within the high-pressure air curtain inside the protective cover 3.

[0028] like Figure 2 As shown, the water blowing bracket is set on the top surface of the aluminum profile frame 1, located inside the protective cover 3.

[0029] The frame 5 is fixedly installed on the top surface of the aluminum profile frame 1. The frame 5 is arranged along the X-axis direction (i.e., horizontally) and serves as the mounting base for the rodless cylinder 7 and the high-pressure air nozzle 8.

[0030] The rodless cylinder 7 is mounted on the upper surface of the frame 5 and extends along the X-axis. The rodless cylinder 7 is a linear reciprocating drive mechanism, and its sliding part (i.e., the moving part) can reciprocate along the X-axis. The rodless cylinder 7 is connected to an air source via an air pipe, and its movement direction and stroke are controlled by the PLC control cabinet 2.

[0031] The U-shaped bracket 6 is fixedly connected to the bottom of the frame 5. Specifically, the two pillars of the U-shaped bracket 6 are located on the upper and lower sides of the frame 5 respectively (i.e., in the Y-axis direction, perpendicular to the X-axis), so that the U-shaped bracket 6 spans the bottom of the frame 5.

[0032] There are eight high-pressure air nozzles 8, arranged in groups of four, installed on the inner sides of the two pillars of the U-shaped bracket 6. Specifically, the four high-pressure air nozzles 8 located on the upper side of the frame 5 are arranged opposite to the four high-pressure air nozzles 8 located on the lower side of the frame 5. Each high-pressure air nozzle 8 is connected to an air source via an air pipe. The two groups of high-pressure air nozzles 8 blow air towards each other, forming an air curtain along the Y-axis in the area above the frame 5. The direction of the air curtain is perpendicular to the movement direction (X-axis direction) of the rodless cylinder 7, forming a cross-shaped blowing layout.

[0033] like Figure 2 and Figure 3 As shown, the air inlet of the high-pressure air nozzle 8 is mounted on the U-shaped bracket 6 via a universal ball joint. This universal ball joint allows the air outlet direction of the high-pressure air nozzle 8 to be adjusted in all directions according to actual needs. The air outlet of the high-pressure air nozzle 8 is flat (i.e., duckbill-shaped or fan-shaped flat opening structure), which can compress high-pressure gas into a thin and wide air curtain, increasing the purging coverage area and the purging pressure per unit area.

[0034] Two limiting clamps 9 are located at the top of the sliding part of the rodless cylinder 7. The two limiting clamps 9 are positioned opposite each other, and each limiting clamp 9 has a limiting screw 10 on its side. The limiting clamps 9 and the limiting screws 10 together form a limiting space for placing the product. The limiting clamps 9 are made of POM (polyoxymethylene) material. POM material has excellent wear resistance, self-lubrication, and a certain degree of impact resistance, and can withstand repeated placement and removal of the product for a long time without easily wearing out or deforming.

[0035] There are eight limiting screws 10, with four limiting screws 10 on each side of the limiting clamp 9. The limiting screws 10 extend from the side of the limiting clamp 9 into the limiting space to restrict the range of motion of the product within the limiting space. The limiting screws 10 are made of nylon and are used in conjunction with the POM material limiting clamp 9 to restrict the range of motion of the product during the reciprocating motion of the rodless cylinder 7, ensuring that the product is always within the effective blowing area of ​​the air curtain and preventing scratches or impact damage to the product surface.

[0036] The rectangular opening 4 is located directly above the limiting space. During operation, the product is inserted through the rectangular opening 4, and the product falls into the limiting space between the two limiting clamps 9 under the action of gravity. The limiting screws 10 and the limiting clamps 9 work together to restrict the product to the preset position.

[0037] like Figure 1 As shown, the PLC control cabinet 2 is installed on the side of the aluminum profile frame 1. The PLC control cabinet 2 is the control core of this invention, and it contains a PLC controller, a first solenoid valve, and a second solenoid valve.

[0038] The first solenoid valve is connected in the air line between the air source and the high-pressure air nozzle 8, and is used to control the air supply to the high-pressure air nozzle 8. The second solenoid valve is connected in the air line between the air source and the rodless cylinder 7, and is used to control the air supply to the rodless cylinder 7 and its reversal.

[0039] The PLC control cabinet 2 also houses a PLC control program and a timing controller. This PLC control program and timing controller are the core components of the automated linkage control system of this invention. The timing controller is connected to the first and second solenoid valves respectively, and is used to control the coordinated action of the first and second solenoid valves according to a preset time sequence. Specifically, the timing controller controls the first solenoid valve to open and close according to a preset blowing sequence, so that the high-pressure blowing nozzle 8 sprays gas at set times or within a set time period to form an effective air curtain; simultaneously, the timing controller controls the second solenoid valve to open and close according to a preset reversing sequence, so that the sliding part of the rodless cylinder 7 reciprocates along the X-axis direction at a set speed and stroke. Through the above-mentioned timing coordination, precise linkage between the high-pressure blowing action and the reciprocating motion of the product is achieved. The PLC control program is a conventional, known program used to start and stop the timing controller.

[0040] The working process of the water blowing device of this invention is as follows: Product placement: The operator places the product to be cleaned into the rectangular opening 4 at the top of the protective cover 3. Under the action of gravity, the product falls into the limiting space between the two limiting clamps 9. The limiting screws 10 and the limiting clamps 9 work together to fix the product in the preset position.

[0041] Start purging: The operator presses the start switch button on PLC control cabinet 2, and the PLC control program starts running.

[0042] Air curtain formation: PLC control cabinet 2 controls the first solenoid valve to be energized, and the air source is connected to each high-pressure air nozzle 8 through the first solenoid valve. High-pressure gas is ejected through the high-pressure air nozzle 8, and the two sets of high-pressure air nozzles 8 (a total of eight) arranged opposite each other blow air, forming a high-pressure air curtain along the Y-axis above the frame 5.

[0043] The jetting action of the high-pressure air nozzle 8 and the reciprocating motion of the rodless cylinder 7 are not two independent sequential steps, but rather a coordinated process controlled by the PLC control program. The PLC control program has a pre-set timing sequence that precisely controls the start, stop, and duration of the air jetting from the high-pressure air nozzle 8, matching it to the reciprocating speed and stroke of the rodless cylinder 7. This ensures that every area of ​​the product surface is effectively swept by the high-pressure air curtain during multiple reciprocating motions. In other words, through the timing control of the PLC control program, the air output time of the high-pressure air nozzle 8 is matched to the reciprocating speed of the rodless cylinder 7, ensuring that the high-pressure air curtain maintains effective sweeping coverage of the product surface throughout the entire reciprocating stroke of the rodless cylinder 7.

[0044] Reciprocating motion: While the high-pressure air nozzle 8 ejects gas, the PLC control cabinet 2 energizes the second solenoid valve, and the air source is connected to the rodless cylinder 7 through the second solenoid valve. The PLC control program controls the second solenoid valve to switch directions according to a preset sequence, causing the sliding part of the rodless cylinder 7 to reciprocate along the X-axis, driving the product to move back and forth in the air curtain in the Y-axis direction.

[0045] Purging complete: Driven by the rodless cylinder 7, the product passes through the high-pressure air curtain multiple times, and residual moisture on the product surface is thoroughly removed by the high-pressure gas. After purging, the PLC control program automatically closes the first and second solenoid valves, and the operator removes the cleaned product through the rectangular port 4.

[0046] In a preferred embodiment of the present invention, there are eight high-pressure air nozzles 8, with four on each side of the sliding portion of the rodless cylinder 7. The eight high-pressure air nozzles 8 are arranged at equal intervals along the Y-axis, so that the formed air curtain has a uniform pressure distribution in the Y-axis direction, ensuring that all areas of the product's surface can be evenly and fully blown during the reciprocating motion along the X-axis.

[0047] In another preferred embodiment of the present invention, the limiting clamp 9 is made of POM material, and the limiting screw 10 is made of nylon material. Both POM and nylon are polymer materials with certain impact resistance and toughness. When used together, they can effectively limit the range of motion of the product while avoiding mechanical damage to the product surface, which is especially suitable for products with high surface precision requirements or softer materials.

[0048] In another preferred embodiment of the present invention, a ball head is provided inside the high-pressure air nozzle 8, and the air outlet of the high-pressure air nozzle 8 is flat. The ball head structure allows the air outlet direction of the high-pressure air nozzle 8 to be adjusted in all directions. The operator can fine-tune the air outlet angle of each high-pressure air nozzle 8 according to the specific shape and curved surface characteristics of the product, so that the blowing direction of the air curtain can better adapt to the surface contour of irregular or curved products, further optimizing the blowing effect. The flat air outlet can compress the high-pressure gas into a thin and wide air curtain, increasing the coverage area of ​​a single blowing.

[0049] This invention utilizes a rodless cylinder 7 to drive the product in a reciprocating motion along the X-axis, which, combined with the air curtain formed by high-pressure air nozzles 8 arranged opposite each other along the Y-axis, achieves comprehensive cleaning of the product in the intersecting directions. Compared to existing unidirectional through-type air knife cleaning devices, this invention can achieve repeated cleaning multiple times through reciprocating motion after a single placement, resulting in more thorough cleaning without the need for multiple placements. Compared to fixed-point high-pressure air nozzle cleaning devices, this invention, through the reciprocating motion of the product along the X-axis and the omnidirectionally adjustable high-pressure air nozzles 8, can comprehensively cover all parts of irregularly shaped or curved products, eliminating cleaning blind spots.

[0050] In addition, the combination of the POM limiting clamp 9 and the nylon limiting screw 10 ensures product positioning accuracy while effectively protecting the product surface from damage, making it particularly suitable for cleaning precision products with high surface quality requirements.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A water blowing device, characterized in that, include: Aluminum profile frame (1); The PLC control cabinet (2) is installed on the side of the aluminum profile frame (1); A water blowing bracket is mounted on the aluminum profile frame (1); A protective cover (3) is installed on the outside of the blower bracket. The protective cover (3) is fixedly connected to the top surface of the aluminum profile frame (1). A rectangular opening (4) for placing products is provided on the top of the protective cover (3). The water blowing bracket includes: The frame (5) is fixedly installed on the top surface of the aluminum profile frame (1); A rodless cylinder (7) is mounted on the frame (5), and the sliding part of the rodless cylinder (7) reciprocates along the X-axis. Two sets of high-pressure air nozzles (8) are respectively set on the frame (5) and arranged opposite to each other on both sides of the sliding part of the rodless cylinder (7). Each set of high-pressure air nozzles (8) is used to connect to the air source and spray gas. The two sets of high-pressure air nozzles (8) blow air opposite each other to form an air curtain. Two limiting clamps (9) are set on the top of the sliding part of the rodless cylinder (7). The two limiting clamps (9) are arranged opposite to each other, and each limiting clamp (9) has a limiting screw (10) on its side. The limiting clamps (9) and the limiting screws (10) together form a limiting space for limiting the product. The rectangular opening (4) is located directly above the limiting space. Multiple limiting screws (10) are respectively disposed on the sides of the two limiting clamps (9). The limiting screws (10) extend from the sides of the limiting clamps (9) into the limiting space to limit the range of movement of the product within the limiting space. The PLC control cabinet (2) is connected to the rodless cylinder (7) and the high-pressure air nozzle (8) respectively. The PLC control cabinet (2) has a built-in PLC control program. The PLC control program is used to control the high-pressure air nozzle (8) to spray gas at regular intervals and control the sliding part of the rodless cylinder (7) to reciprocate along the X-axis, so as to realize the linkage between the blowing action of the high-pressure air nozzle (8) and the reciprocating motion of the rodless cylinder (7).

2. The water blowing device according to claim 1, characterized in that, The PLC control cabinet (2) is also equipped with a timing controller. The timing controller is connected to the first solenoid valve and the second solenoid valve respectively. The timing controller is used to control the opening and closing of the first solenoid valve and the second solenoid valve according to a preset time sequence, so that the high-pressure air nozzle (8) continuously or intermittently sprays gas during the process of the rodless cylinder (7) driving the product to reciprocate.

3. The water blowing device according to claim 1, characterized in that, The water blowing bracket also includes a U-shaped bracket (6), which is fixedly connected to the bottom of the frame (5). The U-shaped bracket (6) spans the upper and lower sides of the frame (5). The two pillars of the U-shaped bracket (6) are located above and below the frame (5), respectively. The two sets of high-pressure air nozzles (8) are respectively installed on the inner side of the two pillars of the U-shaped bracket (6).

4. The water blowing device according to claim 1, characterized in that, The number of high-pressure air nozzles (8) is eight, and four high-pressure air nozzles (8) are provided on each side of the sliding part of the rodless cylinder (7).

5. The water blowing device according to claim 1, characterized in that, The limiting clamp (9) is made of POM material.

6. The water blowing device according to claim 1, characterized in that, The limiting screw (10) is made of nylon.

7. The water blowing device according to claim 1, characterized in that, Each of the limiting clamps (9) has four limiting screws (10) on its side.

8. The water blowing device according to claim 1, characterized in that, The high-pressure air nozzle (8) is equipped with a universal ball joint inside, and the air outlet of the high-pressure air nozzle (8) is flat.

9. The water blowing device according to claim 1, characterized in that, The PLC control cabinet (2) is equipped with a first solenoid valve and a second solenoid valve. The first solenoid valve is connected between the air source and the high-pressure air nozzle (8), and the second solenoid valve is connected between the air source and the rodless cylinder (7).

10. A water blowing method using the water blowing equipment as described in any one of claims 1-9, characterized in that, Includes the following steps: Place the product into the limiting space through the rectangular opening (4); Activate the linkage control mode: Through the PLC control program, the first solenoid valve and the second solenoid valve are synchronously controlled according to a preset timing sequence; the preset timing sequence includes the air blowing sequence of the first solenoid valve and the reversing sequence of the second solenoid valve, and the air blowing sequence and the reversing sequence overlap at least partially in time; During the process of the sliding part of the rodless cylinder (7) driving the product to reciprocate along the X-axis, the first solenoid valve controls the high-pressure air nozzle (8) to spray gas at regular intervals, so that the two sets of high-pressure air nozzles (8) arranged opposite each other blow air to form an air curtain, thereby performing reciprocating cross-blowing on the surface of the product to remove moisture from the surface of the product.

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