Online reciprocating etching spray device

Abstract

The present invention discloses an online reciprocating etching spray device, comprising: a driving component; a transmission component, the transmission component has an input end and two output ends, the input end of the transmission component is connected to the driving component; an upper spray component, the upper spray component is connected to an output end, and the driving component drives the upper spray component to reciprocate through the transmission component; a lower spray component, the lower spray component is arranged below the upper spray component and is arranged opposite to the upper spray component, the lower spray component is connected to the other output end, and the driving component drives the lower spray component to reciprocate through the transmission component. The present invention has a simple and flexible structure, and realizes double-sided spraying by etching and spraying the product at the same time by using the upper spray component and the lower spray component arranged opposite to each other, and transmits the power of the driving component to the upper spray component and the lower spray component at the same time by using the transmission component, thereby reducing the number of power components used.

Description

Technical Field

[0001] The invention relates to the technical field of spray devices, and in particular to an online reciprocating etching spray device. Background Art

[0002] The spray etching machine is used for etching metal sheets. It uses chemical liquid to perform a series of hollowing out of the parts to be hollowed out. The spray etching machine is one of the key equipment in the metal sheet etching and hollowing manufacturing process. With the current domestic and foreign mobile phone, tablet computer, camera, camcorder and other industries heating up and increasing production, the market demand for metal sheet hollowing is increasing day by day, and the metal sheet hollowing manufacturing companies will have more and more demand for production process equipment.

[0003] At present, traditional spray devices usually adopt a single-sided spray structure and a linear arrangement of nozzles, which can only achieve single-sided spraying. At the same time, the distance from the nozzle to the product, the arrangement of the nozzle, and the swing amplitude of the spray mechanism are small, and it is impossible to make effective adjustments according to the distance from the nozzle to the product. On the one hand, the sprayed etching solution cannot reach a certain amount on the surface of the sprayed product, so effective etching work cannot be carried out, affecting the etching accuracy of the product surface. On the other hand, due to the linear arrangement of the nozzle and the small swing amplitude, it also has a great impact on the etching uniformity of the product surface. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, the present invention proposes an online reciprocating etching spray device, which adopts double-sided spraying, can adjust the distance from the nozzle to the product, has a large swing amplitude, and adopts a staggered arrangement of nozzles, which not only ensures the accuracy of the etching product, but also improves the uniformity of the product etching.

[0006] According to an embodiment of the present invention, the online reciprocating etching spray device includes: a driving component; a transmission component, the transmission component has an input end and two output ends, the input end of the transmission component is connected to the driving component; an upper spray component, the upper spray component is connected to one of the output ends, and the driving component drives the upper spray component to reciprocate through the transmission component; a lower spray component, the lower spray component is arranged below the upper spray component and is arranged opposite to the upper spray component, the lower spray component is connected to the other output end, and the driving component drives the lower spray component to reciprocate through the transmission component.

[0007] According to an embodiment of the present invention, the upper spray assembly and the lower spray assembly are parallel to each other, and the upper spray assembly and the lower spray assembly move in opposite directions at the same time. The spraying effect is improved by staggered spraying.

[0008] According to one embodiment of the present invention, the transmission assembly includes: a main shaft, one end of which is connected to the driving assembly; an upper cam, which is sleeved on the main shaft; an upper connecting rod, which is located above the upper spray assembly, one end of which is rotatably connected to the upper spray assembly, and the other end of the upper connecting rod is rotatably connected to the outer periphery of the upper cam.

[0009] According to one embodiment of the present invention, the transmission assembly further includes: a lower cam, the lower cam is sleeved on the main shaft; a lower connecting rod, the lower connecting rod is located below the lower spray assembly, one end of the lower connecting rod is rotationally connected to the lower spray assembly, and the other end of the lower connecting rod is rotationally connected to the outer periphery of the lower cam. The use of the cam to achieve reciprocating motion has a simple structure, and the convex direction of the lower cam is opposite to the convex direction of the upper cam, so that when the main shaft rotates, the forces of the lower cam and the upper cam are opposite, which can offset most of the forces, thereby reducing the load on the main shaft, thereby increasing the service life.

[0010] According to one embodiment of the present invention, the upper spray assembly includes: an upper frame, which is a square frame structure; an upper connecting block, which is arranged on the upper frame and is rotatably connected to one end of the upper connecting rod; a plurality of upper spray pipes, which are arranged in parallel in the upper frame; and a plurality of upper nozzles, which are evenly arranged on the plurality of upper spray pipes, and the plurality of upper nozzles face the lower spray assembly.

[0011] According to one embodiment of the present invention, the lower spray assembly includes: a lower frame, the lower frame is a square frame structure; a lower connecting block, the lower connecting block is arranged on the lower frame, and the lower connecting block is rotatably connected to one end of the lower connecting rod; a plurality of lower spray pipelines, the plurality of lower spray pipelines are arranged in parallel in the lower frame, and a gap is provided between two adjacent lower spray pipelines; a plurality of lower nozzles, the plurality of lower nozzles are evenly arranged on the plurality of lower spray pipelines, and the plurality of lower nozzles face the upper spray assembly. Providing the gap can facilitate the sprayed liquid to drip from the gap and prevent the liquid from clogging the lower nozzle.

[0012] According to one embodiment of the present invention, the plurality of upper spray pipelines and the plurality of lower spray pipelines are all of wave-shaped structures, the upper nozzles are arranged at the crests or troughs of the upper spray pipelines, the lower nozzles are arranged at the crests or troughs of the lower spray pipelines, and the orthographic projections of the plurality of upper nozzles and the plurality of lower nozzles on the horizontal plane are arranged in an interlaced manner. This avoids spray dead angles or excessive spraying in certain areas of the product, and is conducive to achieving a uniform etching spraying effect.

[0013] According to one embodiment of the present invention, the drive assembly includes: a motor base; a motor, which is arranged on the motor base; a coupling, which is arranged in the motor base, one end of the coupling is connected to the motor, and the other end of the coupling is connected to the main shaft.

[0014] According to one embodiment of the present invention, the online reciprocating etching spray device further includes: four mounting components, two of the mounting components are relatively arranged on the left and right sides of the upper spray component, the upper spray component is slidably connected to the two mounting components, and the other two mounting components are relatively arranged on the left and right sides of the lower spray component, and the lower spray component is slidably connected to the other two mounting components.

[0015] According to one embodiment of the present invention, the mounting assembly includes: a mounting plate, which is perpendicular to the plane where the upper spray assembly or the lower spray assembly is located; two guide plates, which are symmetrically arranged at both ends of the mounting plate; a movable plate, which is arranged between the two guide plates and can move along the guide direction of the two guide plates, and the upper spray assembly or the lower spray assembly is slidably connected to the movable plate along the output direction of the transmission assembly, and the guide direction is perpendicular to the output direction.

[0016] According to one embodiment of the present invention, the mounting plate is provided with a plurality of adjustment holes evenly arranged in the vertical direction, through which the displacement of the movable plate is adjusted, and the guide plate is provided with a plurality of clamping holes, through which screws pass to clamp the movable plate on one side of the mounting plate. The displacement of the movable plate is manually adjusted through the adjustment holes, without the need to use an additional scale to measure the displacement, thus saving installation time.

[0017] The beneficial effects of the present invention are that the structure is simple and flexible, and double-sided spraying is realized by using the upper spray assembly and the lower spray assembly arranged relatively to simultaneously perform etching spraying on the product, and the power of the driving assembly is simultaneously transmitted to the upper spray assembly and the lower spray assembly by the transmission assembly, thereby reducing the number of power components used, and by setting the movement directions of the upper spray assembly and the lower spray assembly in opposite directions at the same time, the forces of the transmission assembly can offset each other during transmission, thereby preventing the transmission assembly from receiving a large load;

[0018] The upper spray pipeline and the lower spray pipeline are set to a corrugated structure, and the upper nozzle and the lower nozzle are arranged alternately, which is more conducive to the full exchange of the product liquid and makes the spraying more uniform; by setting the movable plate and the wire plate on the installation component to be movable, the distance between the upper spray component and the lower spray component can be adjusted, enriching the application scenarios of the present invention.

[0019] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a three-dimensional schematic diagram of an online reciprocating etching spray device according to an embodiment of the present invention;

[0023] Figure 2 is a schematic diagram of the main structure of an online reciprocating etching spray device according to an embodiment of the present invention;

[0024] Figure 3 is a schematic diagram of a top view of the structure of an online reciprocating etching spray device according to an embodiment of the present invention;

[0025] Figure 4 is a partial schematic diagram of an installation component in an online reciprocating etching spray device according to an embodiment of the present invention;

[0026] Reference numerals:

[0027] Driving assembly 1, transmission assembly 2, mounting assembly 3, upper spray assembly 4, lower spray assembly 5, motor 11, motor seat 12, coupling 13, main shaft 21, upper cam 22, lower cam 23, upper connecting rod 24, lower connecting rod 25, mounting plate 31, guide plate 32, movable plate 33, adjustment hole 311, clamping hole 321, upper frame 41, upper nozzle 42, upper connecting block 43, lower frame 51, lower nozzle 52, lower connecting block 53. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The online reciprocating etching spray device according to an embodiment of the present invention is described in detail below with reference to the accompanying drawings.

[0032] like Figures 1 to 4 As shown, the online reciprocating etching spray device according to the embodiment of the present invention comprises: a driving component 1, a transmission component 2, an upper spray component 4 and a lower spray component 5. The transmission component 2 has an input end and two output ends, and the input end of the transmission component 2 is connected to the driving component 1; the upper spray component 4 is connected to an output end, and the driving component 1 drives the upper spray component 4 to reciprocate through the transmission component 2; the lower spray component 5 is arranged below the upper spray component 4 and is arranged opposite to the upper spray component 4, and the lower spray component 5 is connected to the other output end, and the driving component 1 drives the lower spray component 5 to reciprocate through the transmission component 2.

[0033] In other words, the driving component 1 drives the transmission component 2, driving the upper spray component 4 and the lower spray component 5 to start reciprocating motion in opposite directions at the same time. By setting up the upper and lower spray components, on the one hand, the need for double-sided spraying of the product is met, and on the other hand, the time for flipping the product is saved, thereby increasing the work efficiency per unit time.

[0034] Furthermore, the upper spray assembly 4 and the lower spray assembly 5 are parallel to each other, and the upper spray assembly 4 and the lower spray assembly 5 move in opposite directions at the same time. That is to say, as shown in the figure, by arranging the upper spray assembly 4 and the lower spray assembly 5 in parallel with each other, it is ensured that the product is sprayed on a uniform horizontal plane, which improves uniformity, and the upper spray assembly 4 and the lower spray assembly 5 move in opposite directions at the same time, achieving staggered spraying, and further improving the spraying effect.

[0035] Specifically, Figure 2 and Figure 3 As shown, the transmission assembly 2 includes: a main shaft 21, an upper cam 22 and an upper connecting rod 24. One end of the main shaft 21 is connected to the driving assembly 1; the upper cam 22 is sleeved on the main shaft 21, and the upper cam 22 is detachably connected to the main shaft 21. The upper cam 22 can move along the axial direction of the main shaft 21, so as to adjust the height together with the upper spray assembly 4; the upper connecting rod 24 is located above the upper spray assembly 4, one end of the upper connecting rod 24 is connected to the upper spray assembly 4 for rotation, and the other end of the upper connecting rod 24 is connected to the outer periphery of the upper cam 22 for rotation. In other words, the driving assembly 1 drives the main shaft 21 to rotate, and also drives the upper cam 22 to rotate. The rotation of the upper cam 22 will drive the upper connecting rod 24 and the upper spray assembly 4 to reciprocate in a certain direction, thereby increasing the spray etching frequency, making the etching effect on the product surface more uniform.

[0036] Furthermore, if Figure 2 and Figure 3 As shown, the transmission assembly 2 also includes: a lower cam 23 and a lower connecting rod 25. The lower cam 23 is sleeved on the main shaft 21, and the lower cam 23 is detachably connected to the main shaft 21. The lower cam 23 can move along the axial direction of the main shaft 21, so as to adjust the height together with the lower spray assembly 5; the lower connecting rod 25 is located below the lower spray assembly 5, one end of the lower connecting rod 25 is rotatably connected to the lower spray assembly 5, and the other end of the lower connecting rod 25 is rotatably connected to the outer periphery of the lower cam 23. The protruding direction of the lower cam 23 is opposite to the protruding direction of the upper cam 22. The driving assembly 1 drives the main shaft 21 to rotate, which drives the lower cam 23 to rotate. The rotation of the lower cam 23 drives the lower connecting rod 25 and the lower spray assembly 5 to reciprocate in the direction opposite to the upper spray assembly 4, thereby increasing the spray etching frequency and making the etching effect on the product surface more uniform. Furthermore, the diameter of the circle formed by the lower cam 23 and the upper cam 22 during rotation is 40 mm, that is, the displacement of the upper spray assembly 4 and the lower spray assembly 5 is 40 mm. The displacement of 40 mm is moderate, and the uniformity of spraying is better.

[0037] Specifically, Figure 2As shown, the upper spray assembly 4 includes: an upper frame 41, an upper connecting block 43, a plurality of upper spray pipelines and a plurality of upper nozzles 42. The upper frame 41 is a square frame structure; the upper connecting block 43 is arranged in the middle part of the frame of the upper frame 41, and the upper connecting block 43 is rotatably connected to one end of the upper connecting rod 24; a plurality of upper spray pipelines are arranged in parallel in the upper frame 41; a plurality of upper nozzles 42 are evenly arranged on a plurality of upper spray pipelines, and a plurality of upper nozzles 42 face the lower spray assembly 5. That is, when the upper connecting rod 24 pushes the upper connecting block 43, it will drive the upper frame 41, the plurality of upper spray pipelines and the plurality of upper nozzles 42 to move together.

[0038] Preferably, if Figure 2 As shown, the lower spray assembly 5 includes: a lower frame 51, a lower connecting block 53, a plurality of lower spray pipelines and a plurality of lower nozzles 52. The lower frame 51 is a square frame structure; the lower connecting block 53 is arranged in the middle part of the same side frame of the lower frame 51, and the lower connecting block 53 is rotatably connected to one end of the lower connecting rod 25; a plurality of lower spray pipelines are arranged in parallel in the lower frame 51, and a gap is arranged between two adjacent lower spray pipelines to facilitate the spraying liquid to drip from the gap; a plurality of lower nozzles 52 are evenly arranged on the plurality of lower spray pipelines, and the plurality of lower nozzles 52 face the upper spray assembly 4. Similarly, when the lower connecting rod 25 pushes the lower connecting block 53, it will drive the lower frame 51, the plurality of lower spray pipelines and the plurality of lower nozzles 52 to move together.

[0039] Preferably, the plurality of upper spray pipes and the plurality of lower spray pipes are all W-shaped structures, but are not limited thereto, and may also be other wave-shaped structures, such as Figure 1 In the present embodiment, the upper nozzle 42 is arranged at the crest or trough of the upper spray pipeline, and the lower nozzle 52 is arranged at the crest or trough of the lower spray pipeline. The orthographic projections of the plurality of upper nozzles 42 and the plurality of lower nozzles 52 on the horizontal plane are arranged alternately, that is, the upper nozzles and the lower nozzles are finally arranged alternately in sequence in both the longitudinal and transverse directions, which avoids spray dead angles or excessive spraying in certain areas of the product, and is conducive to achieving a uniform etching spraying effect.

[0040] Further, if Figure 2 As shown, the drive assembly 1 includes: a motor base 12, a motor 11 and a coupling 13, wherein the motor 11 is arranged on the motor base 12; the coupling 13 is arranged in the motor base 12, one end of the coupling 13 is connected to the motor 11, and the other end of the coupling 13 is connected to the main shaft 21.

[0041] Preferably, if Figure 1As shown, the online reciprocating etching spray device also includes: four mounting components 3, two mounting components 3 are relatively arranged on the left and right sides of the upper spray component 4, the upper spray component 4 is slidably connected to the two mounting components 3, and the other two mounting components 3 are relatively arranged on the left and right sides of the lower spray component 5, and the lower spray component 5 is slidably connected to the other two mounting components 3. By slidingly connecting the upper and lower spray components with the mounting plate, the upper and lower spray components can be guided in the horizontal direction, which is conducive to making the upper and lower spray components swing more smoothly.

[0042] Preferably, if Figure 3 and Figure 4 As shown, the mounting assembly 3 includes: a mounting plate 31, two guide plates 32 and a movable plate 33. The mounting plate 31 is perpendicular to the plane where the upper spray assembly 4 or the lower spray assembly 5 is located; the two guide plates 32 are symmetrically arranged at both ends of the mounting plate 31; the movable plate 33 is arranged between the two guide plates 32 and can move along the guide direction of the two guide plates 32. The upper spray assembly 4 or the lower spray assembly 5 is slidably connected with the movable plate 33 along the output direction of the transmission assembly 2, and the guide direction is perpendicular to the output direction. This device can realize both horizontal swinging motion and vertical movement. By adjusting the distance between the upper spray assembly 4 and the lower spray assembly 5, the distance from the product during spraying can be reduced or expanded. The movements in these two directions do not interfere with each other, which is conducive to enhancing the accuracy and uniformity of spray etching.

[0043] Preferably, if Figure 4 As shown, the mounting plate 31 is provided with a plurality of adjustment holes 311 evenly arranged in the vertical direction, and the displacement of the movable plate 33 during movement is manually adjusted through the adjustment holes 311, without the need to use an additional scale to measure the displacement, thus saving installation time. The guide plate 32 is provided with a plurality of clamping holes 321, and screws pass through the clamping holes 321 to clamp the movable plate 33 against one side of the mounting plate 31, thereby ensuring the stability of the online reciprocating etching spray device.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 invention. In this specification, the schematic representation of the above terms does 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.

[0045] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An online reciprocating etching spray device, characterized in that: include: A drive assembly (1); A transmission assembly (2), the transmission assembly (2) having an input end and two output ends, the input end of the transmission assembly (2) being connected to the drive assembly (1); An upper spray assembly (4), the upper spray assembly (4) being connected to one of the output ends, and the drive assembly (1) drives the upper spray assembly (4) to reciprocate via the transmission assembly (2); a lower spray assembly (5), the lower spray assembly (5) being arranged below the upper spray assembly (4) and being arranged opposite to the upper spray assembly (4), the lower spray assembly (5) being connected to the other output end, the driving assembly (1) driving the lower spray assembly (5) to reciprocate via the transmission assembly (2); The upper spray assembly (4) and the lower spray assembly (5) are parallel to each other, the upper spray assembly (4) and the lower spray assembly (5) move in opposite directions at the same time, and the displacement between the upper spray assembly (4) and the lower spray assembly (5) is 40 mm; Also includes: Four mounting components (3), two of the mounting components (3) are arranged on the left and right sides of the upper spray component (4) in a relative manner, the upper spray component (4) is slidably connected to the two mounting components (3), and the other two mounting components (3) are arranged on the left and right sides of the lower spray component (5) in a relative manner, the lower spray component (5) is slidably connected to the other two mounting components (3); the mounting components (3) include: A mounting plate (31), wherein the mounting plate (31) is perpendicular to a plane where the upper spray assembly (4) or the lower spray assembly (5) is located; Two guide plates (32), the two guide plates (32) being symmetrically arranged at two ends of the mounting plate (31); a movable plate (33), the movable plate (33) being arranged between the two guide plates (32) and being movable along the guide direction of the two guide plates (32); the upper spray assembly (4) or the lower spray assembly (5) being slidably connected to the movable plate (33) along the output direction of the transmission assembly (2); the guide direction being perpendicular to the output direction; The mounting plate (31) is provided with a plurality of adjustment holes (311) evenly arranged in the vertical direction, and the displacement of the movable plate (33) during movement is adjusted through the adjustment holes (311); the guide plate (32) is provided with a plurality of clamping holes (321), and screws pass through the clamping holes (321) to clamp the movable plate (33) against one side of the mounting plate (31); The upper spray assembly (4) comprises an upper frame (41), a plurality of upper spray pipelines and a plurality of upper nozzles (42), wherein the plurality of upper spray pipelines are arranged in parallel in the upper frame (41); the plurality of upper nozzles (42) are evenly arranged on the plurality of upper spray pipelines, and the plurality of upper nozzles (42) face the lower spray assembly (5); The lower spray assembly (5) comprises a lower frame (51), a plurality of lower spray pipelines and a plurality of lower nozzles (52); the plurality of lower spray pipelines are arranged in parallel in the lower frame (51), and a gap is provided between two adjacent lower spray pipelines; the plurality of lower nozzles (52) are evenly arranged on the plurality of lower spray pipelines, and the plurality of lower nozzles (52) face the upper spray assembly (4); The multiple upper spray pipelines and the multiple lower spray pipelines are all W-shaped structures, the upper nozzles (42) are arranged at the crests or troughs of the upper spray pipelines, and the lower nozzles (52) are arranged at the crests or troughs of the lower spray pipelines, and the orthographic projections of the multiple upper nozzles (42) and the multiple lower nozzles (52) on the horizontal plane are arranged in an interlaced manner.

2. The online reciprocating etching spray device according to claim 1, characterized in that: The transmission assembly (2) comprises: A main shaft (21), one end of which is connected to the driving assembly (1); An upper cam (22), wherein the upper cam (22) is sleeved on the main shaft (21); An upper connecting rod (24), the upper connecting rod (24) is located above the upper spray assembly (4), one end of the upper connecting rod (24) is rotatably connected to the upper spray assembly (4), and the other end of the upper connecting rod (24) is rotatably connected to the outer periphery of the upper cam (22).

3. The online reciprocating etching spray device according to claim 2, characterized in that: The transmission assembly (2) further comprises: A lower cam (23), wherein the lower cam (23) is sleeved on the main shaft (21); A lower connecting rod (25), the lower connecting rod (25) is located below the lower spray assembly (5), one end of the lower connecting rod (25) is rotatably connected to the lower spray assembly (5), and the other end of the lower connecting rod (25) is rotatably connected to the outer periphery of the lower cam (23).

4. The online reciprocating etching spray device according to claim 3, characterized in that: The upper spray assembly (4) further comprises an upper connecting block (43); the upper frame (41) is a square frame structure; the upper connecting block (43) is arranged on the upper frame (41); the upper connecting block (43) is rotatably connected to one end of the upper connecting rod (24).

5. The online reciprocating etching spray device according to claim 4, characterized in that: The lower spray assembly (5) further comprises a lower connecting block (53); the lower frame (51) is a square frame structure; the lower connecting block (53) is arranged on the lower frame (51); the lower connecting block (53) is rotatably connected to one end of the lower connecting rod (25).

6. The online reciprocating etching spray device according to claim 2, characterized in that: The driving assembly (1) comprises: Motor seat (12); A motor (11), wherein the motor (11) is arranged on the motor seat (12); A coupling (13), wherein the coupling (13) is arranged in the motor base (12), one end of the coupling (13) is connected to the motor (11), and the other end of the coupling (13) is connected to the main shaft (21).

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