Air knife with water removal structure

Abstract

The utility model discloses an air knife with a water removal structure, which is applied to the technical field of air knives and comprises a bottom plate, the top of the bottom plate is in bolted connection with a lower knife holder, the top of the lower knife holder is provided with an upper knife holder, and an air inlet transverse groove is formed in the lower knife holder. When the hot air is conveyed into the air inlet transverse groove through the air inlet pipe, the hot air cannot directly flow out, and only when the air inlet transverse groove is filled with the hot air, the air pressure pushes the trapezoidal plug to move upwards, so that the air is uniformly blown out from a strip-shaped gap between the trapezoidal plug and the lower tool apron. Therefore, the uniformity of airflow blown out by the air knife is improved, and the dewatering effect on the two sides is guaranteed. And the adjusting bolt is rotated to push the sliding block to slide forwards so as to reduce the internal space of the air outlet strip-shaped groove. And meanwhile, after the adjusting bolt is reversely rotated, the sliding block can be reset through resilience force of a second spring, and the interval in the air outlet strip-shaped groove is enlarged again. Therefore, the airflow blowing-out velocity can be conveniently adjusted according to actual use requirements, and practicability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air knives, in particular to an air knife with a water removal structure. Background Art

[0002] The air knife is an instrument used for cleaning, drying and dewatering precision components. It is driven by a high-pressure centrifugal fan to deliver uniform and powerful hot air, thereby achieving the purpose of dewatering and cleaning.

[0003] Currently, a Chinese utility model with publication number CN213417301U discloses a water removal air knife device. Existing air knives generally input hot air into the air knife through an air duct and blow it out at high speed through strip air flow slots with a spacing of only 0.05 mm to 0.08 mm at one end.

[0004] However, because hot air is directly delivered to the interior of the air knife, the side of the strip airflow slots closer to the air duct will blow out high-pressure air first, while the strip airflow slots farther from the air duct will blow air later. Therefore, the air pressure on the side that blows out the air first is stronger, while the airflow on the side that blows out later will be insufficient due to the partial airflow. As a result, the airflow pressure on both sides of the air knife is uneven, affecting the uniformity of the air knife's water removal. At the same time, the spacing between the strip airflow slots of the existing air knife is fixed and cannot be adjusted. As a result, the airflow velocity of the air knife is fixed, and the airflow intensity cannot be adjusted as needed. This cannot meet actual usage needs and has low practicality. Utility Model Content

[0005] The purpose of the utility model is to provide an air knife with a water removal structure, which has the advantage of improving the uniformity of the air flow blown out by the air knife and facilitating the function of adjusting the air flow rate according to actual use requirements.

[0006] The above technical purpose of the present utility model is achieved through the following technical solutions: a wind knife with a water removal structure, comprising a base plate, a lower knife seat bolted to the top of the base plate, an upper knife seat installed on the top of the lower knife seat, an air inlet transverse groove opened inside the lower knife seat, one side of the lower knife seat is threadedly connected to an air inlet pipe connected to the air inlet transverse groove, a trapezoidal plug is slidably connected to the top of the trapezoidal plug, a fixing plate is bonded to the top of the fixing plate, and both sides of the bottom of the fixing plate are fixedly connected to a first spring connected to the lower knife seat.

[0007] With this technical solution, hot air, delivered through the air inlet pipe into the air inlet slot, cannot flow out directly. Only when the hot air fills the air inlet slot does the gas pressure push the trapezoidal plug upward, causing the gas to be uniformly blown out from the strip-shaped gap between the trapezoidal plug and the lower blade seat. This improves the uniformity of the air knife's airflow and ensures effective water removal on both sides.

[0008] The utility model is further configured as follows: the interiors of the lower knife seat and the upper knife seat are both provided with an inner cavity groove connected to the top of the air inlet horizontal groove, the interior of the upper knife seat is provided with an air outlet strip groove connected to the top of the inner cavity groove, the top of the lower knife seat close to the side of the air outlet strip groove is slidably connected with a sliding block, the interior of the sliding block is provided with an oblique groove, the bottom of the lower knife seat close to the side of the sliding block is threadedly connected with an adjusting bolt, the top of the adjusting bolt is welded with a conical block slidably connected to the oblique groove, and the side of the sliding block away from the air outlet strip groove is fixedly connected to a second spring bolted to the lower knife seat.

[0009] Using this technical solution, turning the adjustment bolt pushes the slider forward, narrowing the internal spacing of the air outlet slots. Simultaneously, turning the adjustment bolt in the opposite direction resets the slider using the rebound force of the second spring, expanding the internal spacing of the air outlet slots. This facilitates adjustment of the airflow rate based on actual usage, improving practicality.

[0010] The utility model is further configured as follows: a fixing bolt threadedly connected to the lower knife seat is passed through a side of the top of the upper knife seat away from the air outlet strip groove.

[0011] By adopting the above technical solution, the lower knife seat and the upper knife seat are quickly installed and fixed together using fixing bolts.

[0012] The utility model is further configured as follows: sealing strips that cooperate with each other are bonded between the lower knife seat and the upper knife seat.

[0013] The above technical solution is adopted to improve the sealing performance and prevent gas from leaking from the gap between the lower knife seat and the upper knife seat.

[0014] The utility model is further configured as follows: a sliding plate slidably connected to the lower knife seat is welded on the side of the top of the sliding block away from the air outlet strip groove.

[0015] The above technical solution is adopted to improve the sliding stability of the sliding block and prevent the air flow from leaking out from between the sliding block and the lower knife seat.

[0016] The utility model is further configured as follows: mounting plates are bolted to both sides of the bottom of the base plate.

[0017] The above technical solution makes it easy to install the air knife on the conveyor frame to remove water from the material.

[0018] The utility model is further configured as follows: the inner surfaces of the lower knife seat and the upper knife seat are coated with a waterproof coating used in conjunction with the air outlet strip groove.

[0019] By adopting the above technical solution, the waterproof performance is improved and the risk of rust is reduced, thereby ensuring the air outlet volume inside the air outlet strip groove.

[0020] In summary, the present invention has the following beneficial effects:

[0021] 1. When hot air is delivered to the air inlet slot through the air inlet pipe, it cannot flow out directly. Only when the hot air fills the air inlet slot, the gas pressure pushes the trapezoidal plug upward, so that the gas is blown out uniformly from the strip gap between the trapezoidal plug and the lower knife seat. This improves the uniformity of the air flow blown out by the air knife and ensures the water removal effect on both sides.

[0022] 2. Turning the adjustment bolt pushes the slider forward to reduce the internal spacing of the air outlet slots. Simultaneously, turning the adjustment bolt in the opposite direction resets the slider using the rebound force of the second spring, expanding the internal spacing of the air outlet slots. This facilitates adjustment of the airflow rate based on actual usage, improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a side structural sectional view of the utility model;

[0025] Figure 3 It is a front structural sectional view of the utility model.

[0026] Figure numerals: 1, bottom plate; 2, lower knife seat; 3, upper knife seat; 4, air inlet horizontal groove; 5, air inlet pipe; 6, trapezoidal plug; 7, fixed plate; 8, first spring; 9, inner cavity groove; 10, air outlet strip groove; 11, sliding block; 12, second spring; 13, inclined groove; 14, adjusting bolt; 15, conical block; 16, fixing bolt; 17, sealing strip; 18, sliding plate; 19, mounting plate. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below with reference to the accompanying drawings.

[0028] Example 1:

[0029] refer to Figure 1 、 Figure 2 、 Figure 3A wind knife with a water removal structure includes a bottom plate 1, a lower blade seat 2 is bolted to the top of the bottom plate 1, an upper blade seat 3 is installed on the top of the lower blade seat 2, an air inlet groove 4 is opened inside the lower blade seat 2, an air inlet pipe 5 connected to the air inlet groove 4 is threaded on one side of the lower blade seat 2, a trapezoidal plug 6 is slidably connected to the top of the air inlet groove 4, a fixing plate 7 is bonded to the top of the trapezoidal plug 6, and both sides of the bottom of the fixing plate 7 are fixedly connected to a first spring 8 connected to the lower blade seat 2. When hot air is transported to the interior of the air inlet groove 4 through the air inlet pipe 5, it cannot flow out directly. Only when the hot air fills the interior of the air inlet groove 4, the gas pressure pushes the trapezoidal plug 6 to move upward, so that the gas is blown out uniformly from the strip-shaped gap between the trapezoidal plug 6 and the lower blade seat 2. This improves the uniformity of the airflow blown out by the wind knife and ensures the water removal effect on both sides.

[0030] refer to Figure 2 、 Figure 3 , sealing strips 17 that cooperate with each other are bonded between the lower knife seat 2 and the upper knife seat 3. Improve sealing and prevent gas from leaking from the gap between the lower knife seat 2 and the upper knife seat 3.

[0031] refer to Figure 1 , both sides of the bottom of the base plate 1 are bolted with mounting plates 19. It is convenient to install the air knife on the conveyor frame to remove water from the material.

[0032] Brief description of the operation: Hot air is delivered to the interior of the air inlet slot 4 through the air inlet pipe 5. Because the top of the air inlet slot 4 is sealed by the trapezoidal plug 6, once the hot air enters the air inlet slot 4, it cannot flow out directly. After the hot air fills the air inlet slot 4, the gas pressure overcomes the elastic force of the first spring 8, pushing the trapezoidal plug 6 and the fixing plate 7 upward, allowing the air to be blown out uniformly and evenly from the gap formed between the trapezoidal plug 6 and the lower blade holder 2.

[0033] Example 2:

[0034] refer to Figure 1 、 Figure 2A wind knife with a water removal structure. Both the lower and upper blade seats 2 and 3 have inner cavities 9 connected to the tops of the air inlet transverse slots 4. The upper blade seat 3 has an air outlet strip groove 10 connected to the tops of the inner cavities 9. A sliding block 11 is slidably connected to the top of the lower blade seat 2 near the air outlet strip groove 10. An inclined groove 13 is defined within the sliding block 11. An adjusting bolt 14 is threadedly connected to the bottom of the lower blade seat 2 near the sliding block 11. A conical block 15 is welded to the top of the adjusting bolt 14 and slidably connected to the inclined groove 13. A second spring 12, bolted to the lower blade seat 2, is fixedly connected to the side of the sliding block 11 away from the air outlet strip groove 10. By rotating the adjusting bolt 14, the sliding block 11 is pushed forward, narrowing the internal spacing of the air outlet strip groove 10. Simultaneously, by rotating the adjusting bolt 14 in the opposite direction, the sliding block 11 can be reset by the rebound force of the second spring 12, thereby expanding the internal spacing of the air outlet strip groove 10. This makes it easy to adjust the airflow rate according to actual usage needs, thereby improving practicality.

[0035] refer to Figure 1 、 Figure 2 , one side of the top of the upper knife seat 3 away from the air outlet strip groove 10 is threadedly connected with a fixing bolt 16 that is threadedly connected to the lower knife seat 2. The lower knife seat 2 and the upper knife seat 3 are quickly installed and fixed together using the fixing bolt 16.

[0036] refer to Figure 2 The top of the sliding block 11 is welded with a sliding plate 18 that is slidably connected to the lower knife seat 2 on one side away from the air outlet strip groove 10. This improves the sliding stability of the sliding block 11 and prevents air flow from leaking out between the sliding block 11 and the lower knife seat 2.

[0037] refer to Figure 1 、 Figure 2 The inner surfaces of the lower blade seat 2 and the upper blade seat 3 are coated with a waterproof coating used in conjunction with the air outlet strip groove 10. This improves the waterproof performance and reduces the risk of rust, thereby ensuring the air outlet volume inside the air outlet strip groove 10.

[0038] Operational Overview: By turning the adjusting bolt 14 and engaging the threaded lower blade holder 2, the tapered block 15 moves upward, sliding against the inclined slot 13. This pushes the sliding block 11 forward, narrowing the internal spacing of the air outlet strip slots 10 and thereby adjusting the spacing of the air knife strip airflow slots. Simultaneously, by turning the adjusting bolt 14 in the opposite direction, the sliding block 11 can be reset using the rebound force of the second spring 12, thereby expanding the internal spacing of the air outlet strip slots 10.

[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An air knife with a water removal structure, comprising a bottom plate (1), characterized in that: The top of the base plate (1) is bolted with a lower knife seat (2), the top of the lower knife seat (2) is installed with an upper knife seat (3), the interior of the lower knife seat (2) is provided with an air inlet transverse groove (4), one side of the lower knife seat (2) is threadedly connected to an air inlet pipe (5) connected to the air inlet transverse groove (4), the top of the air inlet transverse groove (4) is slidably connected to a trapezoidal plug (6), the top of the trapezoidal plug (6) is bonded with a fixing plate (7), and both sides of the bottom of the fixing plate (7) are fixedly connected to a first spring (8) connected to the lower knife seat (2).

2. The air knife with a water removal structure according to claim 1, characterized in that: The interiors of the lower blade seat (2) and the upper blade seat (3) are both provided with an inner cavity groove (9) that is connected to the top of the air inlet transverse groove (4); the interior of the upper blade seat (3) is provided with an air outlet strip groove (10) that is connected to the top of the inner cavity of the inner cavity groove (9); the top of the lower blade seat (2) is slidably connected to a sliding block (11) on the side close to the air outlet strip groove (10); the interior of the sliding block (11) is provided with an inclined groove (13); the bottom of the lower blade seat (2) is threadedly connected to a side close to the sliding block (11); the top of the adjusting bolt (14) is welded with a conical block (15) that is slidably connected to the inclined groove (13); the side of the sliding block (11) away from the air outlet strip groove (10) is fixedly connected to a second spring (12) bolted to the lower blade seat (2).

3. The air knife with a water removal structure according to claim 2, characterized in that: A fixing bolt (16) threadedly connected to the lower blade seat (2) passes through the top of the upper blade seat (3) on one side away from the air outlet strip groove (10).

4. The air knife with a water removal structure according to claim 1, characterized in that: A sealing strip (17) for use with each other is bonded between the lower knife seat (2) and the upper knife seat (3).

5. The air knife with a water removal structure according to claim 2, characterized in that: A sliding plate (18) is welded to the top of the sliding block (11) on a side away from the air outlet strip groove (10) and is slidably connected to the lower knife seat (2).

6. The air knife with a water removal structure according to claim 1, characterized in that: Mounting plates (19) are bolted to both sides of the bottom of the base plate (1).

7. The air knife with a water removal structure according to claim 2, characterized in that: The inner surfaces of the lower blade seat (2) and the upper blade seat (3) are both coated with a waterproof coating used in conjunction with the air outlet strip groove (10).

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