CN221230954U - Photovoltaic sealant coating mechanism - Google Patents

Abstract

The utility model discloses a photovoltaic sealant coating mechanism, which comprises a bracket, a rotating unit and an in-place sensing part, wherein the rotating unit and the in-place sensing part are arranged on the bracket, and the in-place sensing part comprises the following components: the in-place sensing part is used for sensing the rotating unit which moves to a preset sensing position; the rotating unit comprises a driving assembly and a gluing assembly, the driving assembly is in transmission connection with the gluing assembly, the driving assembly can drive the gluing assembly to rotate relative to the support in the rotating process, and the gluing assembly is used for coating sealant on the photovoltaic assembly. The utility model can avoid frequent rotation of the bracket and the rubber tube connected with the bracket in the gluing process, reduce the abrasion of the rubber tube and prolong the service life of the rubber tube connected with the photovoltaic sealant coating mechanism. In addition, when the sealant is coated on different photovoltaic modules, the relative positions between the gluing module and the photovoltaic modules can be kept the same, and the coating stability of the photovoltaic sealant coating mechanism is improved.

Description

Photovoltaic sealant coating mechanism

Technical Field

The utility model relates to the field of photovoltaic equipment, in particular to a photovoltaic sealant coating mechanism.

Background

The photovoltaic sealant coating mechanism is a mechanism for coating sealant on a photovoltaic module, and in the process of coating the sealant, the sealant needs to be coated into a closed shape along the circumferential direction of the photovoltaic module, so that the photovoltaic sealant coating mechanism is required to drive a gluing head on the photovoltaic sealant coating mechanism to complete rotation operation in the coating process. In the prior art, the gluing head is connected to the bracket, and the gluing head on the bracket is driven to rotate by rotating the whole bracket. But because whole support and rubber coating head all rotate in step for rotate required power more, and because rubber tube and leg joint, the rubber tube is all the time along with the support rotates, makes the wearing and tearing of rubber tube great, makes the rubber tube of being connected with photovoltaic sealant coating mechanism have the problem that the life-span is lower.

Disclosure of utility model

In order to overcome the defects in the prior art, the inventor thinks that the power separation of the gluing head and the bracket is changed into only rotating the gluing head, but the whole photovoltaic sealant coating mechanism is compact in structure, the gluing head is closely adjacent to a rubber pipe, a material box, a heating unit and other structures, so that the problem is difficult to solve in practice by directly adding a power source on the gluing head, and the scheme is not feasible. Embodiments of the present utility model provide a photovoltaic sealant coating mechanism for solving one or more of the above problems.

The embodiment of the application discloses: the utility model provides a photovoltaic sealant coating mechanism, includes the support with set up in rotation unit and the induction part that targets in place on the support, wherein: the in-place sensing part is used for sensing the rotating unit which moves to a preset sensing position; the rotating unit comprises a driving assembly and a gluing assembly, the driving assembly is in transmission connection with the gluing assembly, the driving assembly is used for driving the gluing assembly to rotate relative to the support in the rotating process, and the gluing assembly is used for coating sealant on the photovoltaic assembly.

Further, the driving assembly is provided with a rotating wheel, the gluing assembly is provided with a driven wheel, the rotating wheel is arranged in a separated mode with the driven wheel, and the rotating wheel and the driven wheel are connected with a synchronous belt.

Further, the in-place sensing part is a groove-shaped positioning sensor arranged on the bracket, the edge of the rotating wheel is provided with a sensing baffle plate which radially extends out of the rotating wheel, and the sensing baffle plate can extend into the in-place sensing part in the rotating process of the rotating wheel.

Further, both ends of the driven wheel are provided with limiting parts protruding in the circumferential direction of the driven wheel, and the synchronous belt is positioned between the limiting parts.

Further, the rotating wheel and the driven wheel each have positioning teeth extending outward in a radial direction thereof, and the timing belt has tooth grooves provided in correspondence with the positioning teeth.

Further, the rotating unit further comprises a mounting plate connected with the support, the mounting plate is provided with a strip-shaped hole gradually far away from the driven wheel, the mounting plate is further provided with a thread adjusting part extending from the edge of the mounting plate into the strip-shaped hole, and the driving assembly is mounted on the strip-shaped hole and is abutted to the thread adjusting part.

Further, the drive assembly has a rotating gear and the glue assembly has a driven gear engaged with the rotating gear.

Further, the in-place sensing part is a proximity switch arranged on the bracket, the driven gear is provided with a sensing element protruding from the surface along the axial direction of the driven gear, and the sensing element can rotate to the corresponding position of the proximity switch in the rotation process of the rotating gear.

Further, the gluing component is located below the support, the gluing component can rotate on the horizontal plane relative to the support, and the lower end of the gluing component is a transverse spray head.

Further, the support is mounted on the Z-axis sliding rail, so that the support can drive the rotating unit and the in-place sensing part to move in the Z-axis direction.

The beneficial effects of the utility model are as follows:

1. The rubber coating assembly is enabled to rotate relative to the support, frequent rotation of the support and the rubber tube connected with the support in the rubber coating process can be avoided, abrasion of the rubber tube can be reduced, and the service life of the rubber tube connected with the photovoltaic sealant coating mechanism is prolonged. In addition, drive the rubber coating subassembly through drive assembly and rotate, keep away from the rubber coating subassembly with power to combine the rotation state of the control rotation unit of induction portion in place, can make the rotation unit have better rotation effect, make when coating the sealed glue to different photovoltaic module, the relative position between rubber coating subassembly and the photovoltaic module can remain the same, and then reaches the same coating effect, promotes the coating stability of photovoltaic sealed glue coating mechanism.

2. In the rotating process of the rotating wheel, the sensing baffle plate rotates along with the rotating wheel to extend into the groove-shaped positioning sensor, so that the positioning of the sensing baffle plate is converted into the positioning of the rotating wheel and the driven wheel, and the positioning accuracy of the rotating wheel and the driven wheel is correspondingly improved due to the fact that the matching accuracy between the sensing baffle plate extending out of the rotating wheel and the groove-shaped positioning sensor is higher.

3. The two limiting parts play a role in limiting and guiding the synchronous belt positioned in the middle of the synchronous belt, so that dislocation between the synchronous belt and the driven wheel in the rotation process is avoided, and the stability of the synchronous belt in the synchronous motion process of driving the rotating wheel and the driven wheel is improved.

4. In the synchronous rotation process of the rotating wheel and the driven wheel, positioning teeth on the rotating wheel and the driven wheel are sequentially embedded into tooth grooves on the synchronous belt, so that the relative position relationship between the synchronous belt and the rotating wheel and the driven wheel is fixed, the relative sliding between the synchronous belt and the rotating wheel or the driven wheel is avoided, and the transmission effect between the rotating wheel and the driven wheel is improved.

5. The thread adjusting part provides a movement trend away from the driven wheel for the driving assembly, and the synchronous belt provides a movement trend towards the driven wheel for the driving assembly, so that a tensioning effect is achieved on the synchronous belt.

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a photovoltaic sealant coating mechanism according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram showing the positional relationship between a rotation unit and a driving unit according to an embodiment of the present utility model;

FIG. 3 is a detailed view of a photovoltaic sealant application mechanism in one embodiment of the present utility model;

FIG. 4 is a schematic diagram of the timing belt and driven wheel according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a photovoltaic sealant coating mechanism according to another embodiment of the present utility model;

Fig. 6 is a schematic diagram showing a positional relationship between a rotation unit and a driving unit according to another embodiment of the present utility model;

Reference numerals of the above drawings: 1. a bracket; 2. a rotation unit; 21. a drive assembly; 211. a rotating wheel; 212. rotating the gear; 22. a gluing component; 221. driven wheel; 2211. a limit part; 222. a driven gear; 2221. an inductive element; 223. a transverse spray head; 23. a mounting plate; 231. a bar-shaped hole; 3. an in-place sensing part; 4. a synchronous belt; 41. tooth slots; 5. sensing a baffle; 6. positioning teeth.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, one of ordinary skill in the art would obtain all other embodiments without undue burden.

As shown in fig. 1 to 6, a photovoltaic sealant coating mechanism in this embodiment includes a bracket 1, a rotating unit 2 disposed on the bracket 1, and an in-place sensing portion 3, wherein:

The in-place sensing part 3 is used for sensing the rotating unit 2 moving to a preset sensing position, so that the rotating unit 2 can be sensed by the in-place sensing part 3 in the rotating process, and the rotating state of the rotating unit 2 is controlled. In this embodiment, the preset sensing position is the initial position to which the glue spreading component 22 rotates, so as to ensure that the initial position of the glue spreading component 22 remains the same each time the sealant is applied.

The rotating unit 2 comprises a driving component 21 and a gluing component 22, the driving component 21 is in transmission connection with the gluing component 22, the driving component 21 is used for driving the gluing component 22 to rotate relative to the bracket 1 in the rotating process, so that the driving component 21 can be used as a power source for driving the gluing component 22, and the gluing component 22 is used for coating sealant on the photovoltaic component. Under the drive of the driving component 21, the gluing component 22 can rotate along with the driving component 21, so that the gluing component 22 rotates relative to the bracket 1, and the rotating unit 2 rotates to a preset induction position before gluing, so that the gluing component 22 is in a preset initial position before gluing each time, and the relative positions between the gluing component 22 and the photovoltaic components can be kept the same when different photovoltaic components are coated with sealant. The bracket 1 can comprise a feed box connected with the rubber pipe and a heating unit connected with the feed box, wherein the feed box is used for containing sealant, and the heating unit is used for heating the sealant in the feed box to meet the coating requirement. The applicator assembly 22 may then include a gear pump connected to the bin and an applicator head connected to the gear pump for applying the sealant in the bin to the photovoltaic module via the applicator head.

In this embodiment, the photovoltaic module is rectangular, and the photovoltaic module is conveyed to a position corresponding to the photovoltaic sealant coating mechanism, and at this time, the rotating unit 2 is located at a preset sensing position. The glue spreading component 22 is coated along a first edge of the photovoltaic component, at the edge of the first edge, the driving component 21 rotates to drive the glue spreading component 22 to rotate 90 degrees, then the glue spreading component 22 is coated along a second edge of the photovoltaic component, at the edge of the second edge, the driving component 21 rotates to drive the glue spreading component 22 to rotate 90 degrees, then the glue spreading component 22 is coated along a third edge of the photovoltaic component, at the edge of the third edge, the driving component 21 rotates to drive the glue spreading component 22 to rotate 90 degrees, then the glue spreading component 22 is coated along a fourth edge of the photovoltaic component, and finally the sealant coated on the fourth edge is connected with the sealant coated on the first edge, so that the sealant forms a rectangular closed shape. After coating is completed, the rotating unit 2 can be rotated to a preset sensing position, so that the glue spreading assembly 22 is at a preset initial position before the next photovoltaic assembly is glued. In one embodiment, each 90 turn is in the same direction, so that, after coating is complete, the glue assembly 22 is rotated just 360 and to the original preset sensing position. In another embodiment, the glue spreading assembly rotates 90 ° each time in opposite directions, so that the maximum rotation amplitude of the glue spreading assembly 22 is 90 °, the swing of the glue spreading assembly 22 during the rotation process is reduced, and the stability is improved. It will be appreciated that the shape of the photovoltaic module may be other polygons, and accordingly, the angle at which the driving module 21 rotates to drive the glue spreading module 22 to rotate is the same as the angle between the adjacent sides of the photovoltaic module.

By means of the structure, the gluing component 22 rotates relative to the bracket 1, frequent rotation of the bracket 1 and the rubber tube connected with the bracket in the gluing process can be avoided, abrasion of the rubber tube can be reduced, and the service life of the rubber tube connected with the photovoltaic sealant coating mechanism is prolonged. In addition, drive the rubber coating subassembly 22 through drive assembly 21 and rotate, keep away from rubber coating subassembly 22 with power to combine the rotation state of the control rotation unit 2 of induction part 3 in place, can make rotation unit 2 have better rotation effect, make when coating the sealant to different photovoltaic module, the relative position between rubber coating subassembly 22 and the photovoltaic module can remain the same, and then reaches the same coating effect, promotes the coating stability of photovoltaic sealant coating mechanism.

In an alternative embodiment, as shown in fig. 1 to 4, the driving assembly 21 has a rotating wheel 211, the gluing assembly 22 has a driven wheel 221, the rotating wheel 211 is spaced apart from the driven wheel 221, and the rotating wheel 211 and the driven wheel 221 are connected to the timing belt 4. The timing belt 4 is used to connect the rotating wheel 211 and the driven wheel 221 such that the timing belt 4 transmits power on the rotating wheel 211 to the driven wheel 221. The driven wheel 221 rotates during rotation along with the rotating wheel 211, so that the relative position relationship between the driven wheel 221 and the bracket 1 is changed, and the gluing assembly 22 can rotate relative to the bracket 1 under the driving action of the driving assembly 21.

Specifically, as shown in fig. 3, the in-place sensing part 3 is a groove-shaped positioning sensor arranged on the bracket 1, the edge of the rotating wheel 211 is provided with a sensing baffle 5 extending out of the rotating wheel 211 along the radial direction of the rotating wheel, and the sensing baffle 5 can extend into the in-place sensing part 3 in the rotating process of the rotating wheel 211. That is, during the rotation of the rotating wheel 211, the sensing baffle 5 rotates to extend into the groove-shaped positioning sensor, so that the positioning of the sensing baffle 5 is converted into the positioning of the rotating wheel 211 and the driven wheel 221, and the positioning accuracy of the rotating wheel 211 and the driven wheel 221 is correspondingly improved due to the fact that the matching accuracy between the sensing baffle 5 extending out of the rotating wheel 211 and the groove-shaped positioning sensor is higher.

Specifically, as shown in fig. 3, both ends of the driven pulley 221 have stopper portions 2211 protruding in the circumferential direction thereof, and the timing belt 4 is located between the stopper portions 2211. In the rotation process, the two limiting parts 2211 play a role in limiting and guiding the synchronous belt 4 positioned in the middle of the two limiting parts 2211 so as to avoid dislocation between the synchronous belt 4 and the driven wheel 221 in the rotation process, and improve the stability of the synchronous belt 4 in the process of driving the rotation wheel 211 and the driven wheel 221 to synchronously move.

Specifically, as shown in fig. 4, each of the rotary wheel 211 and the driven wheel 221 has positioning teeth 6 extending outward in the radial direction thereof, and the timing belt 4 has tooth grooves 41 provided in correspondence with the positioning teeth 6. In the synchronous rotation process of the rotating wheel 211 and the driven wheel 221, the positioning teeth 6 on the rotating wheel 211 and the driven wheel 221 are sequentially embedded into the tooth grooves 41 on the synchronous belt 4, so that the relative position relationship between the synchronous belt 4 and the rotating wheel 211 and the driven wheel 221 is fixed, the relative sliding between the synchronous belt 4 and the rotating wheel 211 or the driven wheel 221 is avoided, and the transmission effect between the rotating wheel 211 and the driven wheel 221 is improved.

Preferably, as shown in fig. 4, the end of the positioning tooth 6 and the bottom of the tooth slot 41 are both planar, so that the positioning tooth 6 and the tooth slot 41 can avoid damaging the synchronous belt 4 in the process of mutual contact, the contact surface during positioning can be increased, and the positioning effect is improved. The two sides of the tooth slot 41 are provided with inward concave arcs, the two sides of the positioning tooth 6 are provided with outward convex arcs corresponding to the inward concave arcs, so that the inward concave arcs can generate guiding effect on the outward convex arcs in the corresponding process of the positioning tooth 6 and the tooth slot 41, and a better guiding effect is achieved between the lifting rotating wheel 211 and the driven wheel 221 and the synchronous belt 4.

Specifically, as shown in fig. 3, the rotating unit 2 further includes a mounting plate 23 connected to the bracket 1, and the mounting plate 23 is used to connect the driving assembly 21 and the mounting plate 23. The mounting plate 23 is provided with a bar-shaped hole 231 gradually far away from the driven wheel 221, and in this embodiment, the extending direction of the bar-shaped hole 231 forms an acute angle with the connecting line direction between the rotating wheel 211 and the driven wheel 221, so as to disperse a part of the acting force received by the driving assembly 21 onto the side wall of the bar-shaped hole 231, so as to protect the driving assembly 21. Of course, in other alternative embodiments, the extending direction of the strip-shaped hole 231 may be the same as the connecting line direction between the driving assembly 21 and the glue application assembly 22. The mounting plate 23 also has a threaded adjustment portion (not shown) extending from an edge thereof into the bar-shaped hole 231, and the drive assembly 21 is mounted on the bar-shaped hole 231 and abuts against the threaded adjustment portion. I.e. the screw thread adjusting part provides a movement tendency for the drive assembly 21 away from the driven wheel 221, whereas the timing belt 4 provides a movement tendency for the drive assembly 21 towards the driven wheel 221, thereby providing a tensioning effect for the timing belt 4.

In this embodiment, before the photovoltaic module is coated, the rotating wheel 211 drives the sensing baffle 5 to rotate until the sensing baffle extends into the groove-shaped positioning sensor, so that the rotating unit 2 is at a preset sensing position and begins to coat the photovoltaic module with sealant. When the spraying direction of the gluing component 22 needs to be rotated in the gluing process of the photovoltaic component, the rotating wheel 211 rotates, and then the synchronous belt 4 moves through the matching of the positioning teeth 6 on the rotating wheel and the tooth grooves 41 on the synchronous belt 4, so that the synchronous belt 4 can be matched with the positioning teeth 6 on the driven wheel 221 through the tooth grooves 41, the driven wheel 221 is driven to rotate, and the spraying direction of the gluing component 22 is changed. And after the synchronous belt 4 is loosened in the use process, the thread adjusting part is adjusted to be gradually far away from the driven wheel 221, so that the tensioning effect on the synchronous belt 4 is achieved.

In another alternative embodiment, as shown in fig. 5-6, the drive assembly 21 has a rotating gear 212 and the glue assembly 22 has a driven gear 222 that meshes with the rotating gear 212. The rotating gear 212 is used for driving the driven gear 222, so that the rotating gear 212 transmits power thereon to the driven gear 222. The driven gear 222 rotates along with the rotation of the rotating gear 212, so that the relative position relationship between the driven gear and the photovoltaic module is changed, and the gluing module 22 can rotate relative to the bracket 1 under the driving action of the driving module 21.

Specifically, as shown in fig. 5, the in-place sensing part 3 is a proximity switch provided on the bracket 1, and the driven gear 222 has a sensing element 2221 protruding from a surface in an axial direction thereof, and the sensing element 2221 can be rotated to a corresponding position of the proximity switch during rotation of the rotation gear 212. That is, during the rotation of the rotating gear 212, the sensing element 2221 rotates to the corresponding position of the proximity switch, because the sensing element 2221 is located on the driven gear 222, when the sensing element 2221 is located at the corresponding position of the proximity switch, the rotating unit 2 is located at the preset sensing position, so that the positioning of the sensing element 2221 is converted into the positioning of the driven gear 222, and the positioning effect of the glue spreading assembly 22 is improved.

In this embodiment, before the photovoltaic module is coated, the rotating gear 212 rotates to drive the sensing element 2221 to rotate to the corresponding position of the proximity switch, so that the rotating unit 2 is at the preset sensing position and starts to coat the photovoltaic module with sealant. When the spraying direction of the gluing component 22 needs to be rotated in the gluing process of the photovoltaic component, the rotating gear 212 rotates to further drive the driven gear 222 meshed with the rotating gear to rotate, so that the spraying direction of the gluing component 22 is changed.

Specifically, as shown in fig. 1 and 5, the glue spreading component 22 is located below the support 1, so that the glue spreading component 22 can be placed above the photovoltaic component and spray sealant from top to bottom, the glue spreading component 22 can rotate on a horizontal plane relative to the support 1, and a lateral spray head 223 is located at the lower end of the glue spreading component 22. The above-mentioned structure makes when coating the sealant, and the rubber coating subassembly 22 can be arranged in photovoltaic module top to make rubber coating subassembly 22 rotate on the horizontal plane in the rubber coating in-process, and drive horizontal shower nozzle 223 and correspondingly rotate, when the different positions of photovoltaic module are coated, the rotation of rubber coating subassembly 22 makes the rubber coating direction of horizontal shower nozzle 223 change, and then accomplishes the whole coating to photovoltaic module edge.

Specifically, the stand 1 is mounted on a Z-axis slide rail (not shown in the drawing) so that the stand 1 can drive the rotating unit 2 and the in-place sensing part 3 to move in the Z-axis direction. The bracket 1 drives the whole of the rotating unit 2 and the in-place sensing part 3 to move on the Z axis, so that the distance between the gluing component 22 and the photovoltaic component on the Z axis can be changed, namely, when the sealant is coated, the Z axis drives the rotating unit 2 and the in-place sensing part 3 to move towards the adjacent photovoltaic component in the Z axis direction, the coating distance requirement is further met, and the coating of the gluing component 22 on the photovoltaic component is realized; when the application of the sealant is finished and the gluing component 22 needs to be rotated, the Z-axis drives the rotating unit 2 and the in-place sensing part 3 to move away from the photovoltaic component in the Z-axis direction, so that the distance between the gluing component 22 and the photovoltaic component is increased, and the rotation of the gluing component 22 is completed. The Z-axis slide rail may be disposed on a first linear module (not shown in the drawing), the first linear module may be disposed on a second linear module (not shown in the drawing), and the moving directions of the first linear module and the second linear module may be perpendicular to each other and all be on a horizontal plane, so that the bracket 1 and the rotating unit 2 and the in-place sensing part 3 thereon are driven to complete the coating action through the first linear module, the second linear module and the Z-axis slide rail.

The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the idea of the present utility model, the present disclosure should not be construed as limiting the present utility model in summary.

Claims (10)

1. The utility model provides a photovoltaic sealant coating mechanism which characterized in that, include the support with set up in rotation unit and the induction part that targets in place on the support, wherein:

the in-place sensing part is used for sensing the rotating unit which moves to a preset sensing position;

The rotating unit comprises a driving assembly and a gluing assembly, the driving assembly is in transmission connection with the gluing assembly, the driving assembly is used for driving the gluing assembly to rotate relative to the support in the rotating process, and the gluing assembly is used for coating sealant on the photovoltaic assembly.

2. The photovoltaic sealant coating mechanism of claim 1, wherein the drive assembly has a rotating wheel, the glue assembly has a driven wheel, the rotating wheel is spaced apart from the driven wheel, and the rotating wheel and the driven wheel are connected to a timing belt.

3. The photovoltaic sealant coating mechanism according to claim 2, wherein the in-place sensing part is a groove-shaped positioning sensor arranged on the bracket, the edge of the rotating wheel is provided with a sensing baffle extending out of the rotating wheel along the radial direction of the rotating wheel, and the sensing baffle can extend into the in-place sensing part in the rotating process of the rotating wheel.

4. The photovoltaic sealant coating mechanism according to claim 2, wherein both ends of the driven wheel have stopper portions protruding in a circumferential direction thereof, and the timing belt is located between the stopper portions.

5. The photovoltaic sealant coating mechanism according to claim 4, wherein the rotating wheel and the driven wheel each have positioning teeth extending radially outward thereof, and the timing belt has tooth grooves provided in correspondence with the positioning teeth.

6. The photovoltaic sealant coating mechanism according to claim 2, wherein the rotating unit further comprises a mounting plate connected to the bracket, the mounting plate is provided with a bar-shaped hole gradually distant from the driven wheel, the mounting plate further comprises a screw thread adjusting portion extending from an edge thereof into the bar-shaped hole, and the driving assembly is mounted on the bar-shaped hole and abuts against the screw thread adjusting portion.

7. The photovoltaic sealant application mechanism of claim 1 wherein the drive assembly has a rotating gear and the glue assembly has a driven gear that meshes with the rotating gear.

8. The photovoltaic sealant coating apparatus of claim 7, wherein the in-place sensing portion is a proximity switch provided on the bracket, the driven gear has a sensing element protruding from a surface in an axial direction thereof, and the sensing element is rotatable to a corresponding position of the proximity switch during rotation of the rotating gear.

9. The photovoltaic sealant coating mechanism of claim 1, wherein the glue assembly is located below the bracket, the glue assembly is rotatable relative to the bracket in a horizontal plane, and a lower end of the glue assembly is a lateral spray head.

10. The photovoltaic sealant coating mechanism of claim 1, wherein the bracket is mounted on a Z-axis slide rail such that the bracket can move the rotating unit and the in-place sensing portion in the Z-axis direction.