Paint spraying device for glass artware

Abstract

The invention relates to the technical field of paint spraying devices, and discloses a paint spraying device for glass crafts, the paint spraying device comprises a device base, a processing box body and a box door, the processing box body is fixedly mounted at the top of the device base, a mounting notch is formed in one side of the processing box body, and the box door is rotatably mounted in the mounting notch to seal the processing box body; a supporting plate capable of ascending, descending, rotating and adjusting is installed on the rear side in the machining box body, bottle-shaped hollow artware is placed on the top of the supporting plate, an inverted-U-shaped frame capable of moving up and down in a reciprocating mode is arranged on the top in the machining box body, two spray heads are symmetrically installed on the two sides in the inverted-U-shaped frame, and a clamping rotating component is installed on the top in the machining box body. The clamping rotating part is in transmission connection with the inverted U-shaped frame; the paint spraying device has the functions of fixed rotation adjustment and lifting spraying, so that comprehensive and uniform spraying operation is conducted on the surfaces of the glass crafts, and the quality and efficiency of paint spraying processing of the glass crafts are effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of paint spraying devices, in particular to a paint spraying device for glass handicrafts. Background Art

[0002] Glass crafts are products with artistic value that are made by hand-processing glass raw materials or glass semi-finished products. During the processing of glass crafts, a paint spraying device is required to beautify the surface.

[0003] The existing authorized patent (Announcement No.: CN218423578U) is a paint spraying device for glass handicraft processing. The paint spraying device can drive the sliding seat to move up and down by starting the motor, and can drive the handicraft to move up and down by controlling the uniform forward and reverse rotation of the motor. The up and down movement of the handicraft can cooperate with the paint spraying component to complete the uniform coverage of the outer surface of the handicraft with paint, which solves the problem that the paint coverage is thin in some parts of the handicraft surface when the position of the handicraft and the paint spraying component is relatively fixed.

[0004] However, the paint spraying device can only move up and down to adjust the handicraft, and the paint spraying components are fixed and located on both sides of the processing box. Therefore, the paint spraying components can only spray paint on the surface of the handicraft facing the side thereof, while the surface of the handicraft not facing the side of the paint spraying component cannot be painted evenly, comprehensively and effectively, resulting in the use defects of the paint spraying device. Therefore, improvements are needed to address the above problems. Summary of the invention

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a paint spraying device for glass crafts, comprising a device base, a processing box and a box door, wherein the processing box is fixedly installed on the top of the device base, a mounting slot is opened on one side of the processing box, and the box door is rotatably installed inside the mounting slot to seal the processing box, a lifting and rotating support plate is installed on the rear side of the processing box, a bottle-shaped hollow craft is placed on the top of the support plate, an inverted U-shaped frame that can move up and down reciprocatingly is provided on the top of the processing box, two nozzles are symmetrically installed on both sides of the inverted U-shaped frame, a clamping rotating component is installed on the top of the processing box, the clamping rotating component is located directly above the bottle-shaped hollow craft, and the clamping rotating component is transmission-connected to the inverted U-shaped frame.

[0006] Preferably, a rotating shaft is rotatably connected to one side of the mounting slot, the box door is fixedly connected to the surface of the rotating shaft, a transmission slot is opened on one side of the device base, the bottom of the rotating shaft extends to the inside of the transmission slot and is fixedly connected to a large sprocket, a first threaded rod is rotatably connected to the rear side of the top of the transmission slot, a small sprocket is fixedly connected to the bottom of the first threaded rod, and a chain is connected between the small sprocket and the large sprocket.

[0007] Preferably, a first vertical groove is opened in the lower part of the rear side of the processing box body, the first threaded rod extends into the interior of the first vertical groove, the surface of the first threaded rod located inside the first vertical groove is threadedly connected with a first movable block, the first movable block is slidably installed in the interior of the first vertical groove, a connecting groove is opened at one end of the first movable block, a rotating block is installed in the connecting groove, and a supporting plate is fixedly installed at one end of the rotating block.

[0008] Preferably, the interior of the connecting groove is rotatably connected to a first rotating shaft, the rotating block is fixedly connected to the surface of the first rotating shaft, one end of the first rotating shaft extends to the outside of one side of the first moving block and is fixedly connected to a worm gear, one side of the first moving block is rotatably connected to a worm gear meshing with the worm gear, one end of the worm gear is fixedly installed with a first gear, a vertical plate is fixedly installed at the bottom of the inverted U-shaped frame, and a transmission rack aligned with the first gear is fixedly installed at the lower part of one side of the vertical plate.

[0009] Preferably, a second vertical groove is opened on one side of the inner part of the processing box, a second threaded rod is rotatably connected to the inside of the second vertical groove, a second movable block is threadedly connected to the surface of the second threaded rod, one end of the second movable block is fixedly connected to the inverted U-shaped frame, the bottom of the second threaded rod extends to the inside of the transmission groove, a first forward and reverse motor is installed inside the transmission groove, and the output end of the first forward and reverse motor is fixedly connected to the bottom of the second threaded rod.

[0010] Preferably, the clamping rotating component includes an internal threaded tube fixedly installed in the middle of the top of the processing box, the internal threads of the internal threaded tube are connected to the external threaded hollow tube, the lower part of the external threaded hollow tube extends to the interior of the processing box, and a third rotating rod is penetrated inside the external threaded hollow tube, an n-shaped block is fixedly installed on the top of the processing box, the internal threaded tube is located inside the n-shaped block, the upper part of the third rotating rod is rotatably connected to the middle part of the n-shaped block, the top of the third rotating rod is fixedly connected to the second gear, the top of the second threaded rod extends to the top of the processing box and is fixedly connected to the third gear, and the third gear is meshingly connected to the second gear.

[0011] Preferably, the externally threaded hollow tube is provided with a circular groove at the lower part of the inner part of the processing box, a clamping ring is installed inside the circular groove, and three first support rods are rotatably connected to the surface of the clamping ring at equal intervals, one end of the three first support rods are rotatably connected to a clamping resistance block, the lower part of one side of the three clamping resistance blocks are rotatably connected to a second support rod, and one end of the three second support rods are rotatably connected to the bottom of the third rotating rod.

[0012] Preferably, a gear ring is fixedly installed on the top of the surface of the externally threaded hollow tube located above the processing box, a gear column meshing with the gear ring is rotatably connected to the top of the processing box, a second forward and reverse motor is installed on the top of the processing box, and a fourth gear meshing with the gear column is fixedly installed on the output end of the second forward and reverse motor.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) During operation, the paint spraying device has fixed rotation adjustment and lifting spraying functions by providing a device base, a processing box, a box door, an installation slot, a supporting plate, a bottle-shaped hollow craft, an inverted U-shaped frame, a nozzle and a clamping and rotating component. It can internally clamp and fix the glass craft and rotate it, and at the same time drive the spraying assembly to move up and down reciprocatingly, so as to perform a comprehensive and uniform spraying operation on the surface of the glass craft, effectively improving the quality of the glass craft spraying processing, and the paint spraying device has a linked transmission function, which can improve the efficiency and speed of the paint spraying processing during the operation. At the same time, the paint spraying device has a simple structural design, is easy to use, and is stable and reliable in adjustment and operation. Its performance can meet the use requirements of the glass craft spraying processing;

[0015] (2) When in use, place the bottle-shaped hollow craft to be processed inside the front groove on the top of the supporting plate, so that the bottle-shaped hollow craft is located directly below the clamping rotating component, and then rotate the box door to seal the processing chamber of the processing box. The rotation of the box door will drive the rotating shaft and the large sprocket to rotate. The rotation of the large sprocket will drive the small sprocket and the first threaded rod to rotate through the chain. The rotation of the first threaded rod will cause the first moving block to move upward inside the first vertical groove. The upward movement of the first moving block will drive the rotating block and the supporting plate to move upward. The upward movement of the supporting plate will drive the bottle-shaped hollow craft to move upward, so that the clamping rotating component is inserted into the interior of the bottle-shaped hollow craft.

[0016] (3) When the supporting plate drives the bottle-shaped hollow craft to move upward so that the clamping rotating component is inserted into the interior of the bottle-shaped hollow craft, the fourth gear is rotated by starting the second forward and reverse motor. The rotation of the fourth gear will transmit the tooth column and drive the gear ring to rotate. The rotation of the gear ring will drive the externally threaded hollow tube to rotate and rotate downward inside the internally threaded tube. The rotation and downward movement of the externally threaded hollow tube will cause the gear ring to mesh with the surface of the tooth column and rotate downward. At the same time, the rotation and downward movement of the externally threaded hollow tube will drive the clamping ring to move downward through the ring groove. The downward movement of the clamping ring will drive the three clamping resistance blocks to expand through the three rotatable and adjustable first support rods and the three second support rods to resist, clamp and fix the interior of the bottle-shaped hollow craft.

[0017] (4) By starting the first forward and reverse motor to rotate the second threaded rod, the rotation of the second threaded rod will cause the second moving block to move downward on its surface, and the downward movement of the second moving block will drive the inverted U-shaped frame and the two nozzles to move downward; when the inverted U-shaped frame moves downward, it will drive the vertical plate and the transmission rack to move downward, and as the transmission rack moves downward, it will mesh with the first gear to rotate, and the rotation of the first gear will drive the worm to rotate, and the rotation of the worm will drive the worm wheel to drive the first rotating shaft to rotate, and the rotation of the first rotating shaft will drive the rotating block and the supporting plate to rotate downward by ninety degrees and separate from the bottom of the bottle-shaped hollow craft. At this time, the bottle-shaped hollow craft is in a suspended state and its surface is completely exposed;

[0018] When the second threaded rod rotates, the third gear will be driven to rotate, the rotation of the third gear will transmit the rotation of the second gear, the rotation of the second gear will drive the third rotating rod to rotate, the rotation of the third rotating rod will drive the clamping ring, the first support rod, the clamping abutment block and the second support rod to rotate through the ring groove, thereby driving the fixed bottle-shaped hollow craft to rotate;

[0019] Afterwards, the surface of the bottle-shaped hollow craft can be sprayed with paint comprehensively and evenly through the up and down movement of the two nozzles and the rotation of the bottle-shaped hollow craft. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0021] In the attached picture:

[0022] Figure 1 This is a front view structural schematic diagram of the paint spraying device for glass handicrafts of the present invention;

[0023] Figure 2 For the present invention Figure 1 Schematic diagram of the local structure;

[0024] Figure 3 For the present invention Figure 2 A schematic cross-sectional structure diagram of;

[0025] Figure 4 For the present invention Figure 3 Schematic diagram of the local structure;

[0026] Figure 5 For the present invention Figure 4 The local structure of Figure 1 ;

[0027] Figure 6 For the present invention Figure 4 The local structure of Figure 2 ;

[0028] In the figure: 1, device base; 2, processing box; 3, box door; 4, installation notch; 5, support plate; 6, bottle-shaped hollow crafts; 7, inverted U-shaped frame; 8, nozzle; 9, clamping rotating component; 10, rotating shaft; 11, transmission groove; 12, large sprocket; 13, first threaded rod; 14, small sprocket; 15, chain; 16, first vertical groove; 17, first moving block; 18, connecting groove; 19, rotating block; 20, first rotating shaft; 21, worm wheel; 22, worm; 23, first gear; 24 , vertical plate; 25, transmission rack; 26, second vertical groove; 27, second threaded rod; 28, second moving block; 29, first forward and reverse motor; 30, internal threaded tube; 31, external threaded hollow tube; 32, third rotating rod; 33, n-shaped block; 34, second gear; 35, third gear; 36, ring groove; 37, clamping ring; 38, first support rod; 39, clamping resistance block; 40, second support rod; 41, gear ring; 42, gear column; 43, second forward and reverse motor; 44, fourth gear. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] Embodiment 1, by Figures 1 to 6 The present invention comprises a device base 1, a processing box 2 and a box door 3. The processing box 2 is fixedly installed on the top of the device base 1. A mounting slot 4 is provided on one side of the processing box 2. The box door 3 is rotatably installed inside the mounting slot 4 to seal the processing box 2. A lifting and rotating support plate 5 is installed on the rear side of the processing box 2. A bottle-shaped hollow craft 6 is placed on the top of the support plate 5. A front groove structure is provided on the top of the support plate 5. The front groove structure is used to place the bottle-shaped hollow craft 6 so that the bottle-shaped hollow craft 6 is located in the clamping rotation. Directly below the rotating component 9, an inverted U-shaped frame 7 that can reciprocate up and down is provided on the top of the processing box 2, and a ball that rolls in contact with the inside of the processing box 2 is installed on one side of the inverted U-shaped frame 7. Two nozzles 8 are symmetrically installed on both sides of the inverted U-shaped frame 7. The two nozzles 8 are connected to an external paint pump through a hose, and the external paint pump is connected to an external paint bucket through a pipeline. A clamping rotating component 9 is installed on the top of the processing box 2. The clamping rotating component 9 is located directly above the bottle-shaped hollow craft 6, and the clamping rotating component 9 is transmission connected to the inverted U-shaped frame 7.

[0031] A rotating shaft 10 is rotatably connected to one side of the mounting slot 4, and the box door 3 is fixedly connected to the surface of the rotating shaft 10. A transmission slot 11 is opened on one side of the device base 1, and a baffle for easy disassembly and assembly is installed by screws on the front side of the transmission slot 11. The bottom of the rotating shaft 10 extends to the inside of the transmission slot 11 and is fixedly connected to a large sprocket 12. A first threaded rod 13 is rotatably connected to the rear side of the top of the transmission slot 11, and a small sprocket 14 is fixedly connected to the bottom of the first threaded rod 13. A chain 15 is connected between the small sprocket 14 and the large sprocket 12, so that the box door 3 can be effectively installed and rotationally adjusted.

[0032] A first vertical groove 16 is provided at the lower part of the rear side of the processing box 2, and the first threaded rod 13 extends into the first vertical groove 16. The surface of the first threaded rod 13 located inside the first vertical groove 16 is threadedly connected with a first movable block 17, and the first movable block 17 is slidably installed in the first vertical groove 16. A connecting groove 18 is provided at one end of the first movable block 17, and a rotating block 19 is installed in the connecting groove 18. The supporting plate 5 is fixedly installed at one end of the rotating block 19, so that the supporting plate 5 can be effectively installed and raised and lowered.

[0033] When in use, the bottle-shaped hollow craft 6 to be processed is placed inside the front groove on the top of the supporting plate 5, so that the bottle-shaped hollow craft 6 is located directly below the clamping rotating component 9, and then the box door 3 is rotated to seal the processing chamber of the processing box 2, and the rotation of the box door 3 will drive the rotating shaft 10 and the large sprocket 12 to rotate, and the rotation of the large sprocket 12 will drive the small sprocket 14 and the first threaded rod 13 to rotate through the chain 15, and the rotation of the first threaded rod 13 will cause the first moving block 17 to move upward inside the first vertical groove 16, and the upward movement of the first moving block 17 will drive the rotating block 19 and the supporting plate 5 to move upward, and the upward movement of the supporting plate 5 will drive the bottle-shaped hollow craft 6 to move upward, so that the clamping rotating component 9 is inserted into the interior of the bottle-shaped hollow craft 6.

[0034] The paint spraying device has the functions of fixed rotation adjustment and lifting and spraying. It can internally clamp and fix the glass crafts and rotate them, and at the same time can drive the spraying components to move up and down reciprocatingly, thereby performing a comprehensive and uniform spraying operation on the surface of the glass crafts, effectively improving the quality of the paint spraying process of the glass crafts. In addition, the paint spraying device has a linked transmission function, which can improve the efficiency and speed of the paint spraying process during operation.

[0035] At the same time, the paint spraying device has a simple structural design, is easy to use, and is stable and reliable to adjust and operate. Its performance can meet the use requirements of glass handicraft paint spraying processing.

[0036] Embodiment 2, on the basis of embodiment 1, the interior of the connecting groove 18 is rotatably connected to the first rotating shaft 20, the rotating block 19 is fixedly connected to the surface of the first rotating shaft 20, one end of the first rotating shaft 20 extends to the outside of one side of the first movable block 17 and is fixedly connected to a worm gear 21, one side of the first movable block 17 is rotatably connected to a worm 22 meshing with the worm gear 21, one end of the worm 22 is fixedly installed with a first gear 23, a vertical plate 24 is fixedly installed at the bottom of the inverted U-shaped frame 7, and a transmission rack 25 matched and aligned with the first gear 23 is fixedly installed at the lower part of one side of the vertical plate 24, thereby effectively being able to rotate and adjust the supporting plate 5.

[0037] When the clamping rotating component 9 is inserted into the interior of the bottle-shaped hollow craft 6, the adjustment and expansion of the clamping rotating component 9 will clamp and fix the interior of the bottle-shaped hollow craft 6; then, when the inverted U-shaped frame 7 moves downward, the vertical plate 24 and the transmission rack 25 will be driven to move downward, and as the transmission rack 25 moves downward, the first gear 23 will be meshed and driven to rotate the first gear 23, and the rotation of the first gear 23 will drive the worm 22 to rotate, and the rotation of the worm 22 will drive the worm wheel 21 to drive the first rotating shaft 20 to rotate, and the rotation of the first rotating shaft 20 will drive the rotating block 19 and the supporting plate 5 to rotate downward by ninety degrees and separate from the bottom of the bottle-shaped hollow craft 6. At this time, the bottle-shaped hollow craft 6 is in a suspended state and its surface is completely exposed.

[0038] A second vertical groove 26 is opened on one side of the interior of the processing box 2, and a second threaded rod 27 is rotatably connected to the interior of the second vertical groove 26. A second moving block 28 is threadedly connected to the surface of the second threaded rod 27. One end of the second moving block 28 is fixedly connected to the inverted U-shaped frame 7. The bottom of the second threaded rod 27 extends to the interior of the transmission groove 11. A first forward and reverse motor 29 is installed inside the transmission groove 11. The output end of the first forward and reverse motor 29 is fixedly connected to the bottom of the second threaded rod 27, so that the inverted U-shaped frame 7 can be effectively lifted, moved and adjusted.

[0039] By starting the first forward and reverse motor 29 to rotate the second threaded rod 27, the rotation of the second threaded rod 27 will cause the second movable block 28 to move downward on its surface, and the downward movement of the second movable block 28 will drive the inverted U-shaped frame 7 and the two nozzles 8 to move downward, so that the two nozzles 8 can perform a comprehensive and uniform painting operation on the surface of the rotating bottle-shaped hollow craft 6 during the downward movement.

[0040] Embodiment 3, on the basis of embodiment 2, the clamping rotating component 9 includes an internal threaded tube 30 fixedly installed in the middle of the top of the processing box 2, the internal thread of the internal threaded tube 30 is connected with an external threaded hollow tube 31, the lower part of the external threaded hollow tube 31 extends to the interior of the processing box 2, and a third rotating rod 32 is penetrated inside the external threaded hollow tube 31, an n-shaped block 33 is fixedly installed on the top of the processing box 2, the internal threaded tube 30 is located inside the n-shaped block 33, the upper part of the third rotating rod 32 is rotatably connected to the middle part of the n-shaped block 33, the top of the third rotating rod 32 is fixedly connected with a second gear 34, the top of the second threaded rod 27 extends to the top of the processing box 2 and is fixedly connected with a third gear 35, and the third gear 35 is meshingly connected with the second gear 34.

[0041] The externally threaded hollow tube 31 is located at the lower part of the processing box 2 and is provided with a circular groove 36, and a clamping ring 37 is installed inside the circular groove 36. The surface of the clamping ring 37 is rotatably connected with three first support rods 38 at equal intervals. One end of the three first support rods 38 is rotatably connected with a clamping resistance block 39, and the lower part of one side of the three clamping resistance blocks 39 is rotatably connected with a second support rod 40, and one end of the three second support rods 40 is rotatably connected to the bottom of the third rotating rod 32, so that effective rotation adjustment can be performed.

[0042] A gear ring 41 is fixedly installed on the top of the surface of the externally threaded hollow tube 31 located above the processing box 2. A gear column 42 meshing with the gear ring 41 is rotatably connected to the top of the processing box 2. A second forward and reverse motor 43 is installed on the top of the processing box 2. A fourth gear 44 meshing with the gear column 42 is fixedly installed on the output end of the second forward and reverse motor 43, so that the bottle-shaped hollow craft 6 can be effectively adjusted to be fixed.

[0043] When the supporting plate 5 drives the bottle-shaped hollow craft 6 to move upward so that the clamping rotating component 9 is inserted into the interior of the bottle-shaped hollow craft 6, the fourth gear 44 is rotated by starting the second forward and reverse motor 43, and the rotation of the fourth gear 44 will transmit the tooth column 42 to drive the gear ring 41 to rotate, and the rotation of the gear ring 41 will drive the external threaded hollow tube 31 to rotate and rotate and move downward inside the internal threaded tube 30, and the rotation and downward movement of the external threaded hollow tube 31 will cause the gear ring 41 to mesh with the surface of the tooth column 42 and rotate and move downward, and at the same time, the rotation and downward movement of the external threaded hollow tube 31 will drive the clamping ring 37 to move downward through the ring groove 36, and the downward movement of the clamping ring 37 will drive the three clamping and contacting blocks 39 to expand through the three rotatably adjustable first support rods 38 and the three second support rods 40 to contact and clamp the interior of the bottle-shaped hollow craft 6;

[0044] When the second threaded rod 27 rotates, the third gear 35 is driven to rotate, the rotation of the third gear 35 transmits the rotation of the second gear 34, the rotation of the second gear 34 drives the third rotating rod 32 to rotate, the rotation of the third rotating rod 32 drives the clamping ring 37, the first support rod 38, the clamping abutment block 39 and the second support rod 40 to rotate through the ring groove 36, thereby driving the fixed bottle-shaped hollow craft 6 to rotate;

[0045] Afterwards, the surface of the bottle-shaped hollow craft 6 can be sprayed with paint comprehensively and evenly by moving the two spray heads 8 up and down and rotating the bottle-shaped hollow craft 6 .

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although 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 appended claims and their equivalents.

Claims

1. A paint spraying device for glass handicrafts, comprising a device base (1), a processing box (2) and a box door (3), characterized in that: The processing box (2) is fixedly mounted on the top of the device base (1); a mounting slot (4) is provided on one side of the processing box (2); a box door (3) is rotatably mounted inside the mounting slot (4) to seal the processing box (2); a lifting and rotating support plate (5) is mounted on the rear side of the processing box (2); a bottle-shaped hollow handicraft (6) is placed on the top of the support plate (5); an inverted U-shaped frame (7) that can reciprocate up and down is provided on the top of the processing box (2); two nozzles (8) are symmetrically mounted on both sides of the inverted U-shaped frame (7); a clamping rotating component (9) is mounted on the top of the processing box (2); the clamping rotating component (9) is located directly above the bottle-shaped hollow handicraft (6), and the clamping rotating component (9) is transmission-connected to the inverted U-shaped frame (7).

2. A paint spraying device for glass handicrafts according to claim 1, characterized in that: A rotating shaft (10) is rotatably connected to one side of the installation slot (4), the box door (3) is fixedly connected to the surface of the rotating shaft (10), a transmission slot (11) is opened on one side of the device base (1), the bottom of the rotating shaft (10) extends to the inside of the transmission slot (11) and is fixedly connected to a large sprocket (12), a first threaded rod (13) is rotatably connected to the rear side of the top of the transmission slot (11), a small sprocket (14) is fixedly connected to the bottom of the first threaded rod (13), and a chain (15) is connected between the small sprocket (14) and the large sprocket (12).

3. A paint spraying device for glass handicrafts according to claim 2, characterized in that: A first vertical groove (16) is provided at the lower part of the rear side of the processing box (2), the first threaded rod (13) extends into the first vertical groove (16), the surface of the first threaded rod (13) located inside the first vertical groove (16) is threadedly connected with a first moving block (17), the first moving block (17) is slidably installed inside the first vertical groove (16), a connecting groove (18) is provided at one end of the first moving block (17), a rotating block (19) is installed inside the connecting groove (18), and the supporting plate (5) is fixedly installed at one end of the rotating block (19).

4. A paint spraying device for glass handicrafts according to claim 3, characterized in that: The connection groove (18) is rotatably connected to a first rotating shaft (20) inside, the rotating block (19) is fixedly connected to the surface of the first rotating shaft (20), one end of the first rotating shaft (20) extends to the outside of one side of the first moving block (17) and is fixedly connected to a worm gear (21), one side of the first moving block (17) is rotatably connected to a worm (22) meshing with the worm gear (21), and one end of the worm (22) is fixedly mounted with a first gear (23).

5. A paint spraying device for glass handicrafts according to claim 4, characterized in that: A vertical plate (24) is fixedly mounted on the bottom of the inverted U-shaped frame (7), and a transmission rack (25) matched and aligned with the first gear (23) is fixedly mounted on the lower part of one side of the vertical plate (24).

6. A paint spraying device for glass handicrafts according to claim 5, characterized in that: A second vertical groove (26) is provided on one side of the processing box (2), a second threaded rod (27) is rotatably connected to the inside of the second vertical groove (26), a second moving block (28) is threadedly connected to the surface of the second threaded rod (27), one end of the second moving block (28) is fixedly connected to the inverted U-shaped frame (7), the bottom of the second threaded rod (27) extends to the inside of the transmission groove (11), a first forward and reverse motor (29) is installed inside the transmission groove (11), and the output end of the first forward and reverse motor (29) is fixedly connected to the bottom of the second threaded rod (27).

7. A paint spraying device for glass handicrafts according to claim 6, characterized in that: The clamping rotating component (9) comprises an internal threaded tube (30) fixedly mounted at the middle of the top of the processing box (2); the internal thread of the internal threaded tube (30) is connected to an external threaded hollow tube (31); the lower part of the external threaded hollow tube (31) extends to the interior of the processing box (2); a third rotating rod (32) is penetrated through the interior of the external threaded hollow tube (31); an n-shaped block (33) is fixedly mounted on the top of the processing box (2); the internal threaded tube (30) is located inside the n-shaped block (33); the upper part of the third rotating rod (32) is rotatably connected to the middle part of the n-shaped block (33); the top of the third rotating rod (32) is fixedly connected to a second gear (34); the top of the second threaded rod (27) extends to the top of the processing box (2) and is fixedly connected to a third gear (35); the third gear (35) is meshingly connected to the second gear (34).

8. The paint spraying device for glass handicrafts according to claim 7, characterized in that: The outer threaded hollow tube (31) is provided with a circular groove (36) at the lower part inside the processing box (2), and a clamping ring (37) is installed inside the circular groove (36). The surface of the clamping ring (37) is rotatably connected with three first support rods (38) in an annular manner at equal intervals. One end of the three first support rods (38) is rotatably connected with a clamping contact block (39). The lower part of one side of the three clamping contact blocks (39) is rotatably connected with a second support rod (40), and one end of the three second support rods (40) is rotatably connected to the bottom of the third rotating rod (32).

9. A paint spraying device for glass handicrafts according to claim 8, characterized in that: A gear ring (41) is fixedly mounted on the top of the surface of the externally threaded hollow tube (31) located above the processing box (2); a gear column (42) meshingly connected to the gear ring (41) is rotatably connected to the top of the processing box (2); a second forward and reverse motor (43) is mounted on the top of the processing box (2); and a fourth gear (44) meshingly connected to the gear column (42) is fixedly mounted on the output end of the second forward and reverse motor (43).

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