Drying oven tuyere

Abstract

The utility model belongs to the technical field of tuyeres, and particularly relates to a drying oven tuyere which comprises a connecting part used for being in butt joint with an air outlet of an air bellow and a tuyere seat provided with a tuyere air outlet, and the connecting part and the tuyere seat are connected in a sliding mode to form a length-adjustable airflow channel. Dry airflow is introduced into the tuyere seat from the connecting part and then is blown to a to-be-dried workpiece from the tuyere air outlet; the tuyere seat is connected with a first locking piece used for locking the relative position between the tuyere seat and the air bellow, and / or the tuyere seat further comprises a second locking piece used for locking the relative position between the connecting part and the tuyere seat. The distance between the air outlet of the air nozzle and a workpiece to be dried can be adjusted, the machining error of the air box and the air nozzle can be overcome, and the drying rate of the workpiece to be dried is more uniform.

Description

Technical Field

[0001] The utility model belongs to the technical field of air nozzles, and in particular relates to an oven air nozzle. Background Art

[0002] After the lithium battery pole piece is coated, it needs to be dried in an oven. Due to the material characteristics of the pole piece, quality defects are prone to occur during the drying process, which is a production link that needs to be focused on. Pole piece drying has all-round requirements for temperature, wind speed, and wind direction. This is because if the temperature is too high, the pole piece substrate will be deformed by heat; if the wind speed is uneven, the degree of drying of the slurry applied to different positions of the substrate will be different, which will cause the finished product to wrinkle, and the slurry may also be over-dried, hardened, and cracked; because the slurry is thick and difficult to dry, if the wind force is not concentrated, it will lead to low drying efficiency and inability to carry out efficient production.

[0003] In the prior art, the hot air from the oven is blown to the bellows for uniform flow. Multiple air nozzles are installed in one bellows. The hot air is concentrated by the air nozzles and blown to the coated electrode for drying. However, the bellows and air nozzles are usually manufactured by sheet metal technology, which has certain errors. The size error of the bellows and air nozzles will cause the distance from the air nozzle outlet to the electrode to be dried to be different, and the distance from the air nozzle outlet to the electrode to be dried will directly affect the wind concentration, wind speed and temperature, resulting in different drying rates for the same batch of electrodes. Utility Model Content

[0004] In order to solve the above technical problems, it is necessary to provide an oven air nozzle whose air outlet can be adjusted at a distance relative to the workpiece to be dried.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A drying oven air nozzle comprises a connecting portion for docking with an air outlet of a bellows, and a nozzle seat provided with the air outlet of the air nozzle, wherein the connecting portion and the air nozzle seat are slidably connected to form an air flow channel with adjustable length, and a dry air flow passes through the connecting portion into the air nozzle seat and then blows toward a workpiece to be dried from the air nozzle outlet; the air nozzle seat is connected to a first locking member for locking the relative position between the air nozzle seat and the bellows, and / or also includes a second locking member for locking the relative position between the connecting portion and the air nozzle seat.

[0007] In the oven nozzle provided by the utility model, the dry airflow in the airflow channel is relatively concentrated, and the error range of the sheet metal is limited. Whether the airflow channel is longer or shorter within this range has little effect on the wind speed and temperature of the dry airflow at the nozzle outlet. It can be considered that the dry airflow is uniform before blowing out the nozzle outlet. As long as the distance between the nozzle outlet and the workpiece to be dried is controlled, the drying speed of the same batch of workpieces to be dried can be unified. The distance between the nozzle outlet and the workpiece to be dried is equal to the distance between the bellows outlet and the workpiece to be dried minus the length of the airflow channel. The distance between each bellows outlet and the corresponding workpiece to be dried is different due to the processing error of the bellows and the nozzle, and the length of the airflow channel can be adjusted within the travel range of the sliding connection between the connecting part and the nozzle seat. The length of the airflow channel is adjusted by adjusting the relative position of the connecting part and the nozzle seat, thereby offsetting the processing error of the bellows and the nozzle, and achieving the purpose of making the distance between the oven nozzle outlet and the workpiece to be painted consistent. During installation, dock the connection part with the air outlet of the bellows, then connect the nozzle seat to the bellows, and adjust the distance between the connection part and the nozzle seat according to the preset distance from the nozzle outlet to the workpiece to be painted. After the adjustment is completed, use the locking member to lock it. You can use the first locking member to lock the position of the nozzle seat relative to the bellows, or you can use the second locking member to directly lock the position of the nozzle seat relative to the connection member. The installation is more secure when the first locking member and the second locking member are used at the same time. The air outlet of the nozzle in the utility model can be adjusted relative to the workpiece to be dried, which can overcome the size error of the bellows and the nozzle, so that the drying rate of the workpiece to be dried is more uniform.

[0008] Preferably, the outer side wall of the connecting portion is in contact with the inner side wall of the nozzle seat so that the connecting portion and the nozzle seat are sleeved.

[0009] Preferably, the first locking member is a bolt, and a thread is provided on the first locking member to match with a screw hole on the bellows. The nozzle seat includes a connecting edge for connecting with the bellows, and the first locking member is passed through the connecting edge. The first locking member is screwed in relative to the bellows so that the nozzle seat is close to the bellows, and the connecting part is deeply inserted into the nozzle seat, or the first locking member is screwed out relative to the bellows so that the nozzle seat is away from the bellows, and the connecting part is pulled out of the nozzle seat. This structure can adjust the relative position of the nozzle seat and the connecting part in a controlled manner, is easy to use, and has a stable connection.

[0010] Preferably, a nozzle guide is provided in the nozzle seat, an air guide slit is formed between the nozzle guide and the side wall of the nozzle seat, and the end of the air guide slit is the nozzle outlet.

[0011] Preferably, the nozzle guide is in a hollow cylindrical shape, and the cylinder wall includes a first wall surface and a second wall surface parallel to the bellows outlet, the distance between the first wall surface and the bellows outlet is smaller than the distance between the second wall surface and the bellows outlet, the first wall surface and the second wall surface are connected with a third wall surface and a fourth wall surface, a first air guide slit is formed between the third wall surface and the nozzle seat, and a second air guide slit is formed between the fourth wall surface and the nozzle seat, and the airflow from the first air guide slit and the second air guide slit is gathered toward the middle. This structure makes the air outlet of the nozzle have a better concentration effect, and because it blows from both sides to the middle, it is not easy for the edge of the workpiece to dry out while the middle is not dry.

[0012] Preferably, at least one end of the nozzle guide is connected to the atmosphere, and a pressure relief hole is provided on the second wall surface. Since the air outlet directions of the first air guide slit and the second air guide slit are concentrated in the middle, the airflows collide and rebound to easily form vortices, and the pressure relief hole is provided on the second wall surface to prevent vortices, making the drying effect more controllable.

[0013] Preferably, a first wind balancing member is provided in the first wind guide slit, a second wind balancing member is provided in the second wind guide slit, and evenly distributed through holes are provided on the first wind balancing member and the second wind balancing member. After the dry airflow hits the wind nozzle guide member, it changes direction and then enters the first wind guide slit and the second wind guide slit. The airflow after changing direction and passing through the contraction is not uniform, and adding a wind balancing member can improve the uniformity of the airflow.

[0014] Preferably, the connecting portion includes an air leveling member for the dry air flow to pass through and to evenly distribute the air, and the air leveling member is evenly distributed with through holes. The evenly distributed through holes on the air leveling member evenly distribute the air flow, so that the air flow velocity through the air leveling member is more uniform.

[0015] Preferably, the connection part further comprises a sealing strip for blocking the gap between the connection part and the nozzle seat. The sealing strip is added to prevent air leakage between the sliding connection part and the nozzle seat, so as to achieve better air collection, uniform wind and energy saving effects.

[0016] Preferably, it also includes an adjustable wind shield connected to the nozzle seat for partially shielding the nozzle outlet. Since the size of each batch of workpieces to be dried is different, the wind shield can be used to partially shield the nozzle outlet according to the size of the workpieces to be dried. In particular, when thick coating is applied, it is necessary to prevent hot air from blowing onto the uncoated part of the substrate to cause wrinkling due to heat, and the wind force can also be more concentrated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other purposes, features and advantages of the present invention will become more apparent through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals in all the accompanying drawings indicate the same parts, and the drawings are not intentionally scaled to the actual size, but the focus is on illustrating the subject matter of the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment;

[0019] Figure 2 An exploded view of the connection portion of a preferred embodiment;

[0020] Figure 3 An exploded view of the tuyere seat of the preferred embodiment;

[0021] Figure 4 It is a cross-sectional view of a preferred embodiment (excluding the windshield).

[0022] In the figure: connecting part 1, buckle seat 11, wind uniforming member base 12, wind uniforming member 13, nozzle seat 2, first wind guide slit 21, second wind guide slit 22, nozzle guide member 23, first wall 231, second wall 232, pressure relief hole 2321, third wall 233, fourth wall 234, connecting edge 24, opening 25, handle 26, first locking member 3, second locking member 4, first wind uniforming member 5, second wind uniforming member 6, sealing strip 7, wind shield 8. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0024] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and combined with it as a whole, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used in this article are only for the purpose of illustrating the present utility model.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] refer to Figure 1The utility model discloses an oven air nozzle, comprising a connection part 1 for docking with the air outlet of the bellows, and a nozzle seat 2 provided with the air outlet of the air nozzle. The connection part 1 and the air nozzle seat 2 are slidably connected to form an air flow channel with adjustable length. After the dry air flow passes through the connection part 1 into the air nozzle seat 2, it blows toward the workpiece to be dried from the air outlet of the air nozzle; the air nozzle seat 2 is connected with a first locking member 3 for locking the relative position between the air nozzle seat 2 and the bellows, and / or also includes a second locking member 4 for locking the relative position between the connection part 1 and the air nozzle seat 2. Reference Figure 2 In the preferred embodiment, the connecting part 1 is composed of a buckle seat 11, a base 12 of a wind uniforming member 13, a wind uniforming member 13 and a sealing strip 7. The connecting part 1 is connected to the air outlet of the bellows through the buckle seat 11 by a buckle. When installing, one end of the buckle seat 11 is bolted to the air outlet of the bellows, and the other end is buckled to facilitate multiple disassembly and assembly, which is convenient for cleaning or maintenance of the air nozzle. Figure 3 A handle 26 is also provided on the nozzle seat 2 to facilitate lifting the entire nozzle from the bellows. Figure 4 , a sealant is also provided on the buckle seat 11, and the sealant is compressed by the buckle to increase the air tightness between the air nozzle and the bellows. In other embodiments, conventional connection methods such as snap-on and bonding can also be used, and the connecting part 1 can be docked with the air outlet of the bellows. In a preferred embodiment, a waist-shaped hole is provided on the air nozzle seat 2, and the second locking member 4 is a bolt. The connecting part 1 and the air nozzle seat 2 can slide within the travel range of the waist-shaped hole. When locking is required, the second locking member 4 is tightened so that the connecting part 1 presses the air nozzle seat 2 to lock it. In other embodiments, the air nozzle seat 2 and the waist-shaped hole can also be connected by other structures such as matching tracks, and the second locking member 4 can also be other structures. In a preferred embodiment, a technical solution is adopted in which the connecting part 1 is sleeved in the air nozzle seat 2 to form an air flow channel. In other embodiments, the air nozzle seat 2 can also be sleeved in the connecting part 1.

[0027] refer to Figure 4 In a preferred embodiment, the outer wall of the connecting portion 1 is in contact with the inner wall of the nozzle seat 2 so that the connecting portion 1 and the nozzle seat 2 are sleeved.

[0028] refer to Figure 4 In a preferred embodiment, the first locking member 3 is a bolt, and a thread is provided on the first locking member 3 to match the screw hole on the bellows. The nozzle seat 2 includes a connecting edge 24 for connecting to the bellows, and the first locking member 3 is passed through the connecting edge 24. The first locking member 3 is screwed in relative to the bellows so that the nozzle seat 2 is close to the bellows, and the connecting part 1 is inserted into the nozzle seat 2, or the first locking member 3 is screwed out relative to the bellows so that the nozzle seat 2 is away from the bellows, and the connecting part 1 is pulled out of the nozzle seat 2.

[0029] refer to Figure 3In a preferred embodiment, a nozzle guide 23 is provided in the nozzle seat 2, and a wind guide slit is formed between the nozzle guide 23 and the side wall of the nozzle seat 2, and the end of the wind guide slit is a nozzle outlet. The wind guide slit in the preferred embodiment is a continuous long strip slit, and in other embodiments, wind guide slits of different shapes can be provided according to different coating areas of the workpiece to be dried.

[0030] refer to Figure 3 and Figure 4 In a preferred embodiment, the nozzle guide 23 is in a hollow cylindrical shape, and the cylinder wall includes a first wall 231 and a second wall 232 parallel to the air outlet of the bellows, the distance between the first wall 231 and the air outlet of the bellows is smaller than the distance between the second wall 232 and the air outlet of the bellows, a third wall 233 and a fourth wall 234 are connected between the first wall 231 and the second wall 232, a first air guide slit 21 is formed between the third wall 233 and the nozzle seat 2, and a second air guide slit 22 is formed between the fourth wall 234 and the nozzle seat 2, and the airflows from the first air guide slit 21 and the second air guide slit 22 are gathered toward the middle. This structure makes the air outlet of the nozzle have a better concentration effect, and because it blows from both sides to the middle, it is not easy for the edge of the workpiece to dry out while the middle is not dry.

[0031] refer to Figure 3 and Figure 4 In a preferred embodiment, both ends of the wind nozzle guide 23 are connected to the atmosphere through the opening 25 on the wind nozzle seat 2, and a pressure relief hole 2321 is provided on the second wall 232. Since the air outlet directions of the first wind guide slit 21 and the second wind guide slit 22 are concentrated in the middle, the airflows collide and rebound to easily form vortices. Providing a pressure relief hole 2321 on the second wall 232 can prevent vortices and make the drying effect more controllable. The pressure relief holes 2321 in the preferred embodiment are a plurality of circular small holes, arranged in a strip-shaped dot matrix that is wide in the middle and narrow at both ends. In other embodiments, they may also be of other shapes, numbers, and arrangements. The two ends of the wind nozzle guide 23 in the preferred embodiment are respectively bolted to the side walls of the wind nozzle seat 2 and fixed in the wind nozzle seat 2. In other embodiments, other connection methods may also be adopted.

[0032] refer to Figure 3In a preferred embodiment, a first wind equalizing member 5 is provided in the first wind guide slit 21, and a second wind equalizing member 6 is provided in the second wind guide slit 22. The first wind equalizing member 5 and the second wind equalizing member 6 are provided with evenly distributed through holes. After the dry airflow hits the nozzle guide member 23, it changes direction and then enters the first wind guide slit 21 and the second wind guide slit 22. The airflow after the change of direction and the contraction is not uniform enough, and adding wind equalizing members improves the uniformity of the airflow. In a preferred embodiment, the first wind equalizing member 5 and the second wind equalizing member 6 include side panels, which are bolted to the nozzle guide member 23 and the side wall of the nozzle seat 2 through the side panels.

[0033] refer to Figure 2 In a preferred embodiment, the connecting portion 1 includes an air leveling member 13 for the dry air flow to pass through and to be evenly distributed, and the air leveling member 13 has through holes evenly distributed thereon. The air leveling member 13 in the preferred embodiment is a mesh plate.

[0034] refer to Figure 2 and Figure 4 In a preferred embodiment, the connection part 1 further comprises a sealing strip 7 for blocking the gap between the connection part 1 and the nozzle seat 2. The sealing strip 7 in the preferred embodiment is arranged on the air leveling member 13, and the connection part 1 is provided with a recessed structure for the sealing strip 7 to be inserted and pressed. In other embodiments, the sealing strip 7 may also be arranged at other positions as long as it can block the gap between the connection part 1 and the nozzle seat 2.

[0035] refer to Figure 1 , and further includes a windshield 8 that is adjustably connected to the nozzle seat 2 and is used to partially block the nozzle outlet. In the preferred embodiment, a waist-shaped hole is provided on the windshield 8, and the windshield 8 is connected to the nozzle seat 2 through the waist-shaped hole. The position of the windshield 8 can be adjusted within the travel range of the waist-shaped hole. In other embodiments, other adjustable connection structures such as a track can be provided between the windshield 8 and the nozzle seat 2.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0038] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An oven air nozzle, characterized in that: The invention comprises a connection part (1) for docking with an air outlet of a bellows, and a nozzle seat (2) provided with an air outlet of the nozzle, wherein the connection part (1) and the nozzle seat (2) are slidably connected to form an air flow channel with adjustable length, and a dry air flow passes through the connection part (1) into the nozzle seat (2) and then blows toward a workpiece to be dried from the air outlet of the nozzle; the nozzle seat (2) is connected to a first locking member (3) for locking the relative position between the nozzle seat (2) and the bellows, and / or further comprises a second locking member (4) for locking the relative position between the connection part (1) and the nozzle seat (2).

2. The oven air nozzle according to claim 1, characterized in that: The outer wall of the connecting portion (1) is in contact with the inner wall of the nozzle seat (2) so that the connecting portion (1) and the nozzle seat (2) are sleeved together.

3. The oven air nozzle according to claim 2, characterized in that: The first locking member (3) is a bolt, and a thread is provided on the first locking member (3) to match with a screw hole on the bellows. The nozzle seat (2) includes a connecting edge (24) for connecting with the bellows, and the first locking member (3) is passed through the connecting edge (24). The first locking member (3) is screwed in relative to the bellows so that the nozzle seat (2) is close to the bellows and the connecting part (1) is inserted into the nozzle seat (2); or the first locking member (3) is screwed out relative to the bellows so that the nozzle seat (2) is away from the bellows and the connecting part (1) is pulled out of the nozzle seat (2).

4. An oven air nozzle according to any one of claims 1 to 3, characterized in that: A nozzle guide member (23) is arranged inside the nozzle seat (2), an air guide slit is formed between the nozzle guide member (23) and the side wall of the nozzle seat (2), and the end of the air guide slit is the nozzle outlet.

5. The oven air nozzle according to claim 4, characterized in that: The nozzle guide member (23) is in the shape of a hollow cylinder, and the cylinder wall comprises a first wall surface (231) and a second wall surface (232) which are parallel to the air outlet of the bellows, the distance between the first wall surface (231) and the air outlet of the bellows is smaller than the distance between the second wall surface (232) and the air outlet of the bellows, a third wall surface (233) and a fourth wall surface (234) are connected between the first wall surface (231) and the second wall surface (232), a first air guide slit (21) is formed between the third wall surface (233) and the nozzle seat (2), and a second air guide slit (22) is formed between the fourth wall surface (234) and the nozzle seat (2), and airflows passing through the first air guide slit (21) and the second air guide slit (22) are gathered toward the middle.

6. The oven air nozzle according to claim 5, characterized in that: At least one end of the air nozzle guide member (23) is connected to the atmosphere, and a pressure relief hole (2321) is provided on the second wall surface (232).

7. The oven air nozzle according to claim 5, characterized in that: A first wind balancing member (5) is arranged in the first wind guiding slit (21), a second wind balancing member (6) is arranged in the second wind guiding slit (22), and the first wind balancing member (5) and the second wind balancing member (6) are provided with evenly distributed through holes.

8. The oven air nozzle according to any one of claims 1 to 3, characterized in that: The connecting portion (1) comprises an air leveling member (13) for the dry air flow to pass through and to evenly distribute the air flow, and the air leveling member (13) is provided with through holes evenly distributed thereon.

9. The oven air nozzle according to any one of claims 1 to 3, characterized in that: The connecting portion (1) also includes a sealing strip (7) for blocking a gap between the connecting portion (1) and the nozzle seat (2).

10. An oven air nozzle according to any one of claims 1 to 3, characterized in that: It also comprises a wind shield (8) which is adjustably connected to the nozzle seat (2) and is used to partially shield the nozzle outlet.

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