Spraying equipment

Abstract

The utility model relates to the technical field of coating, provides spraying equipment, and solves the problems that in the prior art, a vertical spraying mode is often adopted for quartz tube spraying, operation is complex, and production efficiency is low. The spraying equipment comprises a first supporting part, a translation mechanism, a coating supply device, a first driving assembly, a second supporting part and a second driving assembly, wherein the second supporting part comprises a driving wheel and a supporting wheel. The translation mechanism is driven by the first driving assembly to move in the first direction, and the nozzle can be horizontally inserted into the tubular object for spraying; in the spraying process, the second driving assembly drives the driving wheel to rotate, then the tubular object is driven to rotate, and uniform spraying can be achieved; in addition, the tubular object is kept in a horizontal state under the support of the supporting wheel and the driving wheel during spraying, spraying can be completed at a time, and the tubular object does not need to be reassembled, so that the tubular object spraying device has the advantages of being easy to operate and high in production efficiency.

Description

Technical Field

[0001] The present disclosure relates to the technical field of painting, and particularly relates to a spraying device. Background Art

[0002] In the production process of solar panels, diffusion processes are required to process single-crystalline and polycrystalline silicon wafers. The diffusion processes mainly use quartz devices such as quartz tube furnaces and quartz boats as carriers to meet the characteristics of high purity, high temperature resistance, and acid and alkali resistance of the silicon wafers.

[0003] In the prior art, vertical spraying is often used for quartz tube spraying. The quartz tube needs to be placed vertically for spraying, and the quartz diffusion tube needs to be inverted and reinstalled during the spraying process. This spraying process is complex in operation, low in production efficiency, and not convenient for ensuring the uniformity of spraying. Summary of the Invention

[0004] In view of this, embodiments of the present disclosure provide a spraying device to solve the problems in the prior art that vertical spraying is often used for quartz tube spraying, the operation is complex, and the production efficiency is low.

[0005] The first aspect of the present disclosure provides a spraying device, including: a first support portion; a translation mechanism slidably connected to the first support portion along a first direction, the first direction being horizontal; a paint supply device installed on the translation mechanism; a nozzle installed on the translation mechanism and connected to the paint supply device, the paint supply device being configured to convey paint to the nozzle; a first driving component installed on the translation mechanism and configured to drive the translation mechanism to reciprocate along the first direction; a second support portion located on one side of the first support portion in the first direction, the second support portion including a second frame body, a transmission shaft, a plurality of driving wheels, and at least one support wheel, the transmission shaft extending along the first direction and rotatably connected to the second frame body, the transmission shaft being in through connection and fixed connection with the plurality of driving wheels, the rotation axis of the support wheel being parallel to the transmission shaft and rotatably connected to the second frame body, the support wheel being configured to support a tubular object to be sprayed, and the plurality of driving wheels being configured to support and drive the tubular object to rotate; a second driving component in transmission connection with the transmission shaft and configured to drive the transmission shaft to rotate.

[0006] In one embodiment, the first support portion includes: a first frame body; at least one slide rail disposed along the first direction and fixedly connected to the first frame body; the translation mechanism includes: a moving bracket; a sliding member fixedly connected to the moving bracket and slidably connected to the slide rail; a support member extending along the first direction, one end fixedly connected to the moving bracket, and the other end fixedly connected to the nozzle; wherein, the paint supply device is installed on the moving bracket, and the first driving assembly is connected to the moving bracket and / or the sliding member.

[0007] In one embodiment, the first driving assembly includes: a first rotary driving member fixedly connected to the first support portion; a first transmission assembly having an input end and an output end, the input end being connected to the first rotary driving member, and the output end being connected to the moving bracket, the first transmission assembly includes: a first synchronous pulley rotatably connected to the first frame body; a second synchronous pulley rotatably connected to the first frame body, the second synchronous pulley being spaced apart from the first synchronous pulley along the first direction; a synchronous belt wound around the outer sides of the first synchronous pulley and the second synchronous pulley, a portion of the synchronous belt between the first synchronous pulley and the second synchronous pulley being fixedly connected to the translation mechanism; wherein, one of the first synchronous pulley and the second synchronous pulley constitutes the input end of the first transmission assembly and is connected to the first rotary driving member, and the synchronous belt constitutes the output end of the first transmission assembly.

[0008] In one embodiment, the paint supply device includes: a paint tank fixedly connected to the translation mechanism, the paint tank being provided with a discharge port; a feed pipe, one end of which is communicated with the discharge port, and the other end of which is communicated with the nozzle, the feed pipe being connected to the support member.

[0009] In one embodiment, the perforation extends along the first direction; the feed pipe is disposed through the perforation.

[0010] In one embodiment, the side wall of the nozzle is provided with a plurality of material spraying ports, and the plurality of material spraying ports are circumferentially and uniformly arranged around an axis along the first direction.

[0011] In one embodiment, at least one of the driving wheel and the supporting wheel is an elastic wheel, or, an elastic washer is disposed on the outer side of at least one of the driving wheel and the supporting wheel.

[0012] In one embodiment, it further includes: a plurality of first bearing assemblies installed on the second support portion; wherein, the transmission shaft is rotatably connected to the second support portion through at least three of the first bearing assemblies, and one of the first bearing assemblies is disposed between every two adjacent driving wheels on the transmission shaft.

[0013] In one embodiment, the spraying device is applied to the inner wall spraying of a quartz tube, and the tubular object includes a quartz tube; a plurality of supporting wheels are provided, and each driving wheel is correspondingly provided with one supporting wheel in the second direction; the plurality of supporting wheels are sequentially connected through a connecting shaft, and the connecting shaft is rotatably connected to the second supporting part through a plurality of second bearing assemblies, or each of the plurality of supporting wheels is correspondingly provided with two second bearing assemblies, and both ends of the wheel shaft of the supporting wheel are rotatably connected to the second supporting part through the second bearing assemblies; in the second direction, the distance between the driving wheel and the corresponding supporting wheel is less than the outer diameter of the quartz tube; wherein, the second direction is perpendicular to the first direction and the second direction is horizontally arranged.

[0014] In one embodiment, in a vertical plane perpendicular to the first direction, the connection line between the projection of the axis of the driving wheel and the projection of the axis of the quartz tube is a first connection line, and the connection line between the projection of the axis of the supporting wheel and the projection of the axis of the quartz tube is a second connection line, and the included angle between the first connection line and the second connection line is greater than 0° and less than or equal to 90°.

[0015] According to the spraying device provided by the embodiments of the present disclosure, the first driving component drives the translation mechanism to move in the first direction, so that the nozzle can be horizontally inserted into the tubular object for spraying; during the spraying process, the second driving component drives the driving wheel to rotate, and then drives the tubular object to rotate, so as to achieve uniform spraying; in addition, since the tubular object is kept in a horizontal state under the support of the supporting wheel and the driving wheel during spraying, and the spraying can be completed at one time without reinstalling the tubular object, it is easy to operate and has the advantage of high production efficiency. Description of the Drawings

[0016] By describing the embodiments of the present disclosure in more detail in conjunction with the drawings, the above and other objects, features and advantages of the present disclosure will become more obvious. The drawings are used to provide a further understanding of the embodiments of the present disclosure, and constitute a part of the specification, and are used to explain the present disclosure together with the embodiments of the present disclosure, and do not constitute a limitation to the present disclosure. In the drawings, the same reference numerals generally represent the same components or steps.

[0017] Figure 1 is an overall structural schematic diagram of a spraying device provided by the embodiments of the present disclosure.

[0018] Figure 2 is a structural schematic diagram of a driving wheel and a supporting wheel in a spraying device provided by the embodiments of the present disclosure.

[0019] Figure 3 is a sectional structural schematic diagram of a support in a spraying device provided by the embodiments of the present disclosure.

[0020] Figure 4 It is a schematic diagram of the nozzle structure in a spraying device provided by an embodiment of the present disclosure.

[0021] Figure 5 It is a projection view of a driving wheel and a supporting wheel in a spraying device provided by an embodiment of the present disclosure on a vertical plane perpendicular to the first direction.

[0022] 100, first support part; 110, first frame; 120, slide rail; 200, translation mechanism; 210, moving bracket; 220, sliding part; 230, support part; 231, through hole; 300, paint supply device; 310, paint tank; 320, feed pipe; 400, nozzle; 410, feed inlet; 420, inner hole; 430, paint spraying port; 500, first driving assembly; 510, first rotary driving part; 520, first transmission assembly; 600, second support part; 610, second frame; 620, transmission shaft; 630, driving wheel; 640, supporting wheel; 650, connecting shaft; 700, second driving assembly; 710, second rotary driving part; 720, second transmission assembly; 810, first bearing assembly; 820, second bearing assembly; 900, tubular object. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

[0024] Next, in conjunction with Figures 1 to 5 The spraying device of the embodiment of the present disclosure will be described in detail.

[0025] As Figure 1 and Figure 2 shown, the spraying device of the embodiment of the present disclosure includes a first support part 100, a translation mechanism 200, a paint supply device 300, a nozzle 400, a first driving assembly 500, a second support part 600, and a second driving assembly 700. The translation mechanism 200 is slidably connected to the first support part 100 along the first direction X, where the first direction X is horizontal. The paint supply device 300 is installed on the translation mechanism 200, the nozzle 400 is installed on the translation mechanism 200 and is connected to the paint supply device 300, and the paint supply device 300 is configured to convey paint to the nozzle 400. The first driving assembly 500 is installed on the translation mechanism 200 and is configured to drive the translation mechanism 200 to reciprocate along the first direction X.

[0026] The second support part 600 is located on one side of the first support part 100 in the first direction X. The second support part 600 includes a second frame body 610, a transmission shaft 620, a plurality of driving wheels 630, and at least one supporting wheel 640. The transmission shaft 620 extends along the first direction X and is rotatably connected to the second frame body 610. The transmission shaft 620 is inserted and fixedly connected with the plurality of driving wheels 630. The rotation axis of the supporting wheel 640 is parallel to the transmission shaft 620 and is rotatably connected to the second frame body 610. The supporting wheel 640 is configured to support the tubular object 900 to be sprayed, and the plurality of driving wheels 630 are configured to support and drive the tubular object 900 to rotate. The second driving assembly 700 is in transmission connection with the transmission shaft 620 and is configured to drive the transmission shaft 620 to rotate.

[0027] The support for the tubular object 900 can be realized through the second support part 600. Specifically, when the tubular object 900 is placed on the second support part 600, the supporting wheel 640 and the driving wheels 630 can perform multi-point support on the tubular object 900, making the axis of the tubular object 900 horizontal and parallel to the first direction X, and one end of the tubular object 900 facing the nozzle 400. At this time, by driving the translation mechanism 200 to move along the first direction X through the first driving assembly 500, the nozzle 400 can be inserted into the tubular object 900, and the coating is supplied to the nozzle 400 through the coating supply device 300. The coating is ejected from the nozzle 400 to realize the spraying operation.

[0028] During the spraying operation, by driving the translation mechanism 200 to move along the first direction X through the first driving assembly 500, the position of the nozzle 400 can be adjusted along the first direction X, so as to spray different axial positions of the tubular object 900. At the same time, by driving the transmission shaft 620 and the driving wheels 630 located on the transmission shaft 620 to rotate through the second driving assembly 700, the tubular object 900 can be driven to rotate axially, realizing the full spraying of the inner wall of the tubular object 900. This spraying method can ensure the uniformity of spraying. During the spraying process, it is not necessary to reinstall the tubular object 900, and the operation is more convenient. In addition, since the tubular object 900 is in a horizontal state, compared with the vertical spraying operation (the tubular object 900 is vertically placed), it has the advantages of a lower installation center of gravity and safer operation.

[0029] In this embodiment, the plurality of driving wheels 630 are all fixedly connected to the transmission shaft 620. Therefore, the plurality of driving wheels 630 can rotate synchronously, preventing the tubular object 900 from being damaged due to the asynchronous actions of the plurality of driving wheels 630 when driving the tubular object 900 to rotate. Compared with the scheme of separately installing driving structures for each driving wheel 630, this embodiment has the advantages of higher safety, easier control, simple structure, and low use cost.

[0030] In this embodiment, both the paint supply device 300 and the nozzle 400 are installed on the translation mechanism 200 and can move synchronously. During the spraying operation, the connecting pipe between the paint supply device 300 and the nozzle 400 does not need to be repeatedly bent, so damage to the connecting pipe can be avoided and liquid leakage at the connection position can be prevented.

[0031] In some embodiments of the present disclosure, the first support portion 100 includes a first frame body 110 and at least one slide rail 120. The first frame body 110 can be formed by combining a plurality of rod bodies and / or a plurality of plate bodies to form a stable support and reduce usage, and reduce the weight of the first frame body 110.

[0032] The slide rail 120 is arranged along the first direction X, and the slide rail 120 is fixedly connected to the first frame body 110. Optionally, the slide rail 120 is arranged on the upper side of the first frame body 110 and is fixedly connected by means such as welding, clamping or bolt connection.

[0033] The translation mechanism 200 includes a moving bracket 210, a sliding member 220 and a support member 230.

[0034] The sliding member 220 is fixedly connected to the moving bracket 210 and is slidably connected to the slide rail 120. The reciprocating movement of the moving bracket 210 along the first direction X can be realized by using the cooperation structure of the sliding member 220 and the slide rail 120. Optionally, the number of the slide rails 120 is more than two and is arranged along the direction perpendicular to the first direction X. At least one sliding member 220 is correspondingly connected to each slide rail 120, and the sliding members 220 on the plurality of slide rails 120 are all fixedly connected to the moving bracket 210, so that the sliding of the moving bracket 210 can be more stable.

[0035] The support member 230 is a long strip-shaped structure, which extends along the first direction X. One end of the support member 230 in the extending direction is fixedly connected to the moving bracket 210, and the other end is fixedly connected to the nozzle 400. The support member 230 can move along the first direction X under the support of the moving bracket 210. By supporting the nozzle 400 with the support member 230, the nozzle 400 can be inserted into the tubular object 900 or removed from the tubular object 900 when the moving bracket 210 moves along the first direction X.

[0036] The paint supply device 300 is installed on the moving bracket 210. Specifically, the moving bracket 210 includes a top plate, a bottom plate and a plurality of side plates connected between the top plate and the bottom plate. An installation cavity is formed between the top plate, the bottom plate and the plurality of side plates, and at least a part of the paint supply device 300 is located in the installation cavity.

[0037] The first driving assembly 500 is connected to the moving bracket 210 and / or the sliding member 220, and the first driving assembly 500 can drive the moving bracket 210 and the sliding member 220 to slide along the slide rail 120.

[0038] In this embodiment, since the coating supply device 300 is installed on the moving bracket 210 and the nozzle 400 is installed on the moving bracket 210 through the support member 230, the synchronous movement of the coating supply device 300 and the nozzle 400 can be realized, avoiding situations such as breakage, bending, and liquid leakage of the connecting pipe, which is beneficial to simplifying the layout structure of the connecting pipe and improving the service life.

[0039] It should be noted that the first support portion 100 and the second support portion 600 in this embodiment can be different parts belonging to the same frame. Correspondingly, the first frame body 110 and the second frame body 610 can be connected to each other, rather than necessarily being the split structure shown in the figure.

[0040] In some embodiments of the present disclosure, the first driving assembly 500 includes a first rotation driving member 510, a first transmission assembly 520, a first synchronous pulley, a second synchronous pulley, and a synchronous belt.

[0041] Among them, the first rotation driving member 510 can be, for example, a rotary motor, a pneumatic motor, or a hydraulic motor, etc. The first rotation driving member 510 and the first support portion 100 are fixedly connected by, for example, bolt fixing or snap fixing. The first transmission assembly 520 has an input end and an output end. The input end is connected to the first rotation driving member 510, and the output end is connected to the moving bracket 210. When the first rotation driving member 510 operates, it can be transmitted to the moving bracket 210 through the first transmission assembly 520, so that the moving bracket 210 slides along the first direction X.

[0042] The first transmission assembly 520 includes a first synchronous pulley, a second synchronous pulley, and a synchronous belt. The first synchronous pulley is rotatably connected to the first frame body 110. The second synchronous pulley is rotatably connected to the first frame body 110, and the second synchronous pulley and the first synchronous pulley are spaced apart along the first direction X. The synchronous belt is wound around the outer sides of the first synchronous pulley and the second synchronous pulley, and the portion of the synchronous belt between the first synchronous pulley and the second synchronous pulley is fixedly connected to the translation mechanism 200. One of the first synchronous pulley and the second synchronous pulley constitutes the input end of the first transmission assembly 520 and is connected to the first rotation driving member 510 through a gear set or a coupling, and the synchronous belt constitutes the output end of the first transmission assembly 520. When the first rotation driving member 510 operates, it can drive the first synchronous pulley, the second synchronous pulley, and the synchronous belt to rotate. Since the portion of the synchronous belt between the first synchronous pulley and the second synchronous pulley moves linearly along the first direction X, the translation mechanism 200 can be driven to move linearly along the first direction X.

[0043] In some other embodiments, the first transmission assembly 520 can also adopt a lead screw-nut transmission structure or a gear-rack transmission structure, etc., which will not be described in detail here.

[0044] In some embodiments of the present disclosure, the coating supply device 300 includes a coating tank 310 and a feeding pipe 320.

[0045] The coating tank 310 is fixedly connected to the translation mechanism 200. Specifically, the coating tank 310 is fixedly arranged in the installation cavity of the translation mechanism 200. The coating tank 310 is provided with a discharge port.

[0046] One end of the feeding pipe 320 is communicated with the discharge port, and the other end is communicated with the nozzle 400. The coating supplied by the coating tank 310 can be transported to the nozzle 400 through the feeding pipe 320. Optionally, in order to provide power for the supply of the coating, a pumping device or the like can be arranged at the position of the feeding pipe 320 or the discharge port of the coating tank 310.

[0047] The feeding pipe 320 is connected to the support member 230. Through the support member 230, the feeding pipe 320 can be supported, preventing the feeding pipe 320 from shaking, bending or being hooked on other components and damaged, and also avoiding the bending of the feeding pipe 320 from affecting the uniformity of the material supply.

[0048] Combined with Figure 3 , optionally, the support member 230 is provided with a through hole 231 which extends along the first direction X, and the feeding pipe 320 is inserted into the through hole 231. In this way, on the one hand, the support member 230 can be used to support and protect the feeding pipe 320, and on the other hand, when the feeding pipe 320 is damaged and the coating leaks, the coating flowing out of the feeding pipe 320 can flow into the through hole 231, effectively preventing the coating from directly falling on the inner wall of the tubular object 900 and affecting the spraying quality.

[0049] Combined with Figure 4 , in some embodiments, the side wall of the nozzle 400 is provided with a plurality of spraying ports 430, and the plurality of spraying ports 430 are circumferentially and uniformly arranged around the axis along the first direction X. Specifically, the nozzle 400 is provided with an inner hole 420, a feeding port 410 and a spraying port 430. Among them, the feeding port 410 is located at one end of the nozzle 400 along the first direction X, the feeding port 410 is respectively communicated with the inner hole 420 and the feeding pipe 320, the spraying port 430 is provided with a plurality of them, and the plurality of spraying ports 430 are respectively communicated with the inner hole 420, and the plurality of spraying ports 430 are circumferentially and uniformly arranged around the axis along the first direction X. The coating supplied by the feeding pipe 320 can flow into the inner hole 420 through the feeding port 410 and be sprayed out through the plurality of spraying ports 430. Thus, 360° full spraying can be realized. On the one hand, the spraying efficiency is improved and the production speed is increased, and on the other hand, in cooperation with the rotation of the tubular object 900, the purpose of uniform spraying is achieved.

[0050] In some embodiments, the drive wheel 630 and / or the support wheel 640 is an elastic wheel, or an elastic washer is disposed on the outer side of the drive wheel 630 and / or the support wheel 640. The material of the elastic wheel and the elastic washer may be nylon, rubber, or the like. Preferably, both the drive wheel 630 and the support wheel 640 are elastic wheels, or elastic washers are disposed on the outer sides of both the drive wheel 630 and the support wheel 640. Thereby, elastic contact can be achieved between the drive wheel 630 or the support wheel 640 and the tubular object 900, damage to the tubular object 900 can be prevented, and relative sliding between the drive wheel 630 or the support wheel 640 and the tubular object 900 can be avoided, which is beneficial to the transmission of the driving force and can also improve the angle control accuracy.

[0051] In some embodiments of the present disclosure, the spraying device further includes a plurality of first bearing assemblies 810, and the plurality of first bearing assemblies 810 are all mounted on the second support portion 600. The first bearing assembly 810 includes a bearing seat and a bearing. The bearing seat is fixedly connected to the second support portion 600 by means of, for example, bolt fixation or welding fixation, etc. The bearing is mounted on the bearing seat, and the inner ring of the bearing is sleeved on the outer side of the transmission shaft 620.

[0052] The transmission shaft 620 is rotatably connected to the second support portion 600 through at least three first bearing assemblies 810, and a first bearing assembly 810 is provided between every two adjacent drive wheels 630 on the transmission shaft 620. For example, three drive wheels 630 are spaced on the transmission shaft 620, and the transmission shaft 620 is rotatably connected to the second support portion 600 through four first bearing assemblies 810. The drive wheels 630 and the first bearing assemblies 810 are alternately arranged along the first direction X, so that a first bearing assembly 810 is connected to each of the positions of the transmission shaft 620 close to both ends, and a first bearing assembly 810 is provided between every two adjacent drive wheels 630. Under the combined action of the plurality of first bearing assemblies 810, the stable rotation of the transmission shaft 620 and the drive wheels 630 can be ensured, and damage to the tubular object 900 caused by differences in the heights of the plurality of drive wheels 630 resulting in excessive force on some positions of the tubular object 900 can be avoided.

[0053] Combined Figure 2 and Figure 5, in some embodiments of the present disclosure, the spraying device is applied to the inner wall spraying of a quartz tube, and the tubular object 900 includes a quartz tube. A plurality of supporting wheels 640 are provided, and each driving wheel 630 is correspondingly provided with a supporting wheel 640 in the second direction Y. The number of driving wheels 630 is the same as the number of supporting wheels 640. For example, both 4 driving wheels 630 and 4 supporting wheels 640 are provided. The 4 driving wheels 630 are arranged at equal intervals in the first direction X, the 4 supporting wheels 640 are arranged at intervals in the first direction X, the 4 driving wheels 630 and the 4 supporting wheels 640 correspond one by one, and the corresponding driving wheel 630 and supporting wheel 640 are arranged at intervals in the second direction Y. Among them, the second direction Y is perpendicular to the first direction X, and the second direction Y is horizontally arranged. In the second direction Y, the distance between the driving wheel 630 and the corresponding supporting wheel 640 is less than the outer diameter of the quartz tube, so that the quartz tube can be jointly supported by the driving wheel 630 and the supporting wheel 640.

[0054] This setting form can make the number of fulcrums on one side of the quartz tube equal to the number of fulcrums on the other side, and the fulcrums on both sides are symmetric about the vertical plane passing through the axis of the quartz tube, making the forces on both sides of the quartz tube more balanced and conducive to preventing the quartz tube from being damaged.

[0055] Optionally, in the vertical plane perpendicular to the first direction X, the connection line between the projection of the axis of the driving wheel 630 and the projection of the axis of the quartz tube is the first connection line M, and the connection line between the projection of the axis of the supporting wheel 640 and the projection of the axis of the quartz tube is the second connection line N. The included angle a between the first connection line M and the second connection line N is greater than 0° and less than or equal to 90°. For example, the included angle a between the first connection line M and the second connection line N is 30°, 60° or 90°. Thus, among the acting forces between the quartz tube and the driving wheel 630 and the supporting wheel 640, the vertical component force is greater than the horizontal component force, that is, the clamping force of the driving wheel 630 and the supporting wheel 640 on the quartz tube is reduced, and the damage to the quartz tube can be reduced.

[0056] In an alternative solution, the plurality of supporting wheels 640 are sequentially connected by a connecting shaft 650, and the connecting shaft 650 is rotatably connected to the second supporting portion 600 through a plurality of second bearing assemblies 820. A second bearing assembly 820 is provided between every two adjacent supporting wheels 640. This can maintain the synchronism of the plurality of supporting wheels 640 and make the supporting heights of the plurality of supporting wheels 640 the same.

[0057] In another alternative solution, each of the plurality of supporting wheels 640 is correspondingly provided with two second bearing assemblies 820. Both ends of the axle of the supporting wheel 640 are rotatably connected to the second supporting portion 600 through the second bearing assemblies 820. In this solution, the plurality of supporting wheels 640 are separately arranged and independent of each other.

[0058] The above-mentioned second bearing assembly 820 and the first bearing assembly 810 may have the same structure or different structures. Moreover, the connection manner between the axle of the support wheel 640 and the second bearing assembly 820, the connection manner between the connecting shaft 650 and the second bearing assembly 820, and the connection manner between the transmission shaft 620 and the first bearing assembly 810 may all be the same, which will not be elaborated here.

[0059] In some embodiments of the present disclosure, the second driving assembly 700 includes a second rotary driving member 710 and a second transmission assembly 720. The second rotary driving member 710 may be a rotary motor, a pneumatic motor, a hydraulic motor, etc., and the second transmission assembly 720 may be a gear set, a synchronous belt transmission mechanism, a chain transmission mechanism, etc. The second rotary driving member 710 is in transmission connection with the transmission shaft 620 through the second transmission assembly 720. When the second rotary driving member 710 operates, it can drive the transmission shaft 620 to rotate axially, and then drive a plurality of driving wheels 630 to rotate, so as to realize the rotary driving of the tubular object 900.

[0060] In some embodiments of the present disclosure, the second driving assembly 700 is also in transmission connection with the support wheel 640. For example, when a plurality of support wheels 640 are independently arranged, the second driving assembly 700 is also in transmission connection with the axle of at least one support wheel 640. Or, when a plurality of support wheels 640 are sequentially connected through the connecting shaft 650, the second driving assembly 700 is also connected to the connecting shaft 650. In addition, one second driving assembly 700 may be provided and be in transmission connection with both the transmission shaft 620 and the support wheel 640 at the same time to achieve common driving; or a plurality of second driving assemblies 700 may be provided, and a part of the plurality of second driving assemblies 700 is in transmission connection with the transmission shaft 620, and the other part is in transmission connection with the support wheel 640 to achieve separate driving.

[0061] In some embodiments of the present disclosure, the spraying device further includes a plurality of adjustable feet, which are respectively arranged at the bottom of the first support portion 100 and the bottom of the second support portion 600. The height of different positions of the first support portion 100 and the second support portion 600 can be adjusted through the adjustable feet, so as to prevent the nozzle from rubbing against the inner wall of the tubular object 900 and ensure that the axis of the tubular object 900 is horizontal.

[0062] The expressions such as "an embodiment" and "embodiments" mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily each embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining specific features, structures or characteristics with an embodiment, it is within the knowledge scope of those skilled in the art to implement such features, structures or characteristics in combination with other embodiments, whether explicitly or implicitly described.

[0063] It should be understood that the terms "on", "above", and "over" in this disclosure should be construed in the broadest manner, such that "on" not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over something", but may also include the meaning of "above" or "over something" with no intermediate features or layers therebetween (i.e., directly on something).

[0064] In addition, for ease of description, spatial relative terms may be used in this document, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one component or feature to another component or feature as shown in the figures. Spatial relative terms are intended to encompass different orientations of components in use or operation other than the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatial relative descriptors used in this document may be interpreted accordingly.

[0065] It should be noted that in this document, the term "comprising", "including", or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements that are inherent to such process, method, article, or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0066] The above are only the preferred embodiments of this disclosure and are not intended to limit this disclosure. Any modifications, equivalent replacements, etc. made within the spirit and principles of this disclosure shall be included within the protection scope of this disclosure.

Claims

1. A spraying device, characterized in that: include: a first support portion; a translation mechanism, slidably connected to the first support portion along a first direction, the first direction being horizontal; A coating material supply device, mounted on the translation mechanism; a nozzle mounted on the translation mechanism and connected to the paint supply device, wherein the paint supply device is configured to deliver paint to the nozzle; a first driving assembly, mounted on the translation mechanism and configured to drive the translation mechanism to reciprocate along the first direction; The second support part is located at one side of the first support part in the first direction, the second support part comprises a second frame, a transmission shaft, a plurality of driving wheels, and at least one supporting wheel, the transmission shaft is extended along the first direction and is rotatably connected to the second frame, the transmission shaft is interlocked and matched with the plurality of driving wheels and is fixedly connected, the rotation axis of the supporting wheel is parallel to the transmission shaft and is rotatably connected to the second frame, the supporting wheel is configured to support the tubular object to be sprayed, and the plurality of driving wheels are configured to support and drive the tubular object to rotate; The second driving assembly is drivingly connected to the transmission shaft and is configured to drive the transmission shaft to rotate.

2. The spraying equipment according to claim 1, characterized in that: The first supporting portion comprises: The first frame; At least one slide rail, arranged along the first direction and fixedly connected to the first frame; The translation mechanism comprises: Mobile stand; A sliding member, fixedly connected to the movable bracket and slidably connected to the slide rail; A support member extending along the first direction, with one end fixedly connected to the movable bracket and the other end fixedly connected to the nozzle; Wherein, the paint supply device is installed on the movable bracket, and the first driving component is connected to the movable bracket and / or the sliding member.

3. The spraying equipment according to claim 2, characterized in that: The first driving assembly comprises: A first rotating driving member, fixedly connected to the first supporting portion; The first transmission assembly has an input end and an output end, wherein the input end is connected to the first rotating driving member, and the output end is connected to the movable bracket. The first transmission assembly includes: A first synchronous wheel, rotatably connected to the first frame; A second synchronous wheel is rotatably connected to the first frame, and the second synchronous wheel and the first synchronous wheel are spaced apart along the first direction; A synchronous belt, wound around the outer sides of the first synchronous wheel and the second synchronous wheel, wherein a portion of the synchronous belt located between the first synchronous wheel and the second synchronous wheel is fixedly connected to the translation mechanism; Among them, one of the first synchronous wheel and the second synchronous wheel constitutes the input end of the first transmission assembly and is connected to the first rotating driving member, and the synchronous belt constitutes the output end of the first transmission assembly.

4. The spraying equipment according to claim 2, characterized in that: The coating material supply device comprises: A paint tank, fixedly connected to the translation mechanism, the paint tank being provided with a discharge port; A feeding pipe, one end of which is connected to the discharge port, and the other end of which is connected to the nozzle, and the feeding pipe is connected to the support member.

5. The spraying equipment according to claim 4, characterized in that: The support member is provided with a through hole, and the through hole extends along the first direction; The feeding pipe is inserted into the through hole.

6. The spraying equipment according to claim 1 or 2, characterized in that: The side wall of the nozzle is provided with a plurality of spray ports, and the plurality of spray ports are evenly arranged in a circumferential direction with the axis along the first direction as the center.

7. The spraying equipment according to claim 1 or 2, characterized in that: At least one of the driving wheel and the supporting wheel is an elastic wheel, or an elastic washer is arranged on the outer side of at least one of the driving wheel and the supporting wheel.

8. The spraying equipment according to claim 1 or 2, characterized in that: Also includes: A plurality of first bearing assemblies mounted on the second support portion; Wherein, the transmission shaft is rotatably connected to the second support portion through at least three of the first bearing assemblies, and one of the first bearing assemblies is provided between each two adjacent driving wheels on the transmission shaft.

9. The spraying equipment according to claim 1 or 2, characterized in that: The spraying equipment is used for spraying the inner wall of a quartz tube, and the tubular object includes a quartz tube; There are a plurality of support wheels, and each of the driving wheels is provided with a corresponding support wheel in the second direction; The plurality of support wheels are sequentially connected via a connecting shaft, and the connecting shaft is rotatably connected to the second support portion via a plurality of second bearing assemblies, or two second bearing assemblies are correspondingly provided for each of the plurality of support wheels, and both ends of the wheel axle of the support wheel are rotatably connected to the second support portion via the second bearing assemblies respectively; In the second direction, the distance between the driving wheel and the corresponding supporting wheel is smaller than the outer diameter of the quartz tube; The second direction is perpendicular to the first direction, and the second direction is horizontally arranged.

10. The spraying equipment according to claim 9, characterized in that: On a vertical plane perpendicular to the first direction, a line between a projection of the axis of the driving wheel and a projection of the axis of the quartz tube is a first line, a line between a projection of the axis of the supporting wheel and a projection of the axis of the quartz tube is a second line, and an angle between the first line and the second line is greater than 0° and less than or equal to 90°.

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