Automatic spraying device for colored glaze on surface of glass bottle and spraying method thereof

Abstract

The invention discloses an automatic spraying device for colored glaze on the surface of a glass bottle and a spraying method of the automatic spraying device. The automatic spraying device comprises a conveying mechanism, a turnover mechanism, a spraying mechanism, a transmission mechanism, a discharging machine and a programmable logic controller (PLC) used for regulating and controlling the automatic spraying device. The method comprises the steps that a to-be-sprayed glass bottle is conveyed through a conveying mechanism; a to-be-sprayed glass bottle is overturned through the overturning mechanism and then placed on the rotating unit of the transmission mechanism; the spraying mechanism is arranged on one side of the transmission mechanism, a plurality of nozzles with adjustable heights and angles are arranged at the upper part of the spraying mechanism, and colored glaze spraying materials are sprayed to the glass bottles; a rotating unit for rotating glass bottles is mounted on the outer side surface of a transmission belt of the transmission mechanism; and the discharging machine receives the sprayed glass bottles on the transmission mechanism. The device is high in automation degree, manual participation links are reduced, and the production efficiency of glass bottle spraying is improved.

Description

Technical Field

[0001] The invention relates to the technical field of glass bottle surface spraying, and in particular to an automatic spraying device and a spraying method for colored glaze on the surface of a glass bottle. Background Art

[0002] Glass bottles have many excellent characteristics: transparent, easy to clean, good chemical stability, no pollution to the contents, high air tightness, excellent storage performance, etc. In order to improve the quality of glass bottles, make the glass bottles beautiful and good-looking, and facilitate subsequent painting, trademark printing, product information printing, etc. on the glazed surface, it is necessary to spray colored glaze on the surface of the glass bottles during processing.

[0003] Although the glass bottle colored glaze spraying device has been launched, there are still some shortcomings. For example, the invention patent with publication number CN119306402A, publication date 2025-01-14, and patent name "A glass bottle colored glaze spraying device and spraying method" can be fixed from the inside of the glass bottle to avoid the spraying gap on the outer wall of the glass bottle due to the clamping mechanism. However, during the spraying production, on the one hand, the spraying operation can only be limited to processing a single glass bottle at the same time, and on the other hand, how the glass bottle is placed on the transport trolley is not disclosed, and the process may require manual participation; for the above reasons, the existing glass bottle colored glaze spraying device still has the problem of low production efficiency.

[0004] Therefore, we have designed an automatic spraying device and a spraying method for colored glaze on the surface of glass bottles to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcoming of low production efficiency of glass bottle colored glaze spraying devices in the prior art, and to propose an automatic spraying device and a spraying method for colored glaze on the surface of glass bottles, optimize the structural design of the processing device, improve the degree of automation of the production line, reduce manual participation, reduce labor costs, and thus improve production efficiency.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: An automatic spraying device for colored glaze on the surface of a glass bottle, comprising: A conveying mechanism, installed in front of the spraying mechanism and the transmission mechanism, for conveying glass bottles to be sprayed; The turning mechanism is arranged between the conveying mechanism and the transmission mechanism, and the glass bottle to be sprayed is turned over and placed on the rotating unit of the transmission mechanism; The spraying mechanism is arranged on one side of the transmission mechanism, and a plurality of nozzles with adjustable height and angle are arranged on the upper part thereof to spray the colored glaze spray material onto the glass bottle; A transmission mechanism, wherein a rotating unit for rotating the glass bottle is installed on the outer side of the transmission belt; The unloading machine is arranged at the lower side of the transmission mechanism and receives the glass bottles that have been sprayed on the transmission mechanism; And a programmable PLC for controlling the automated spraying device.

[0007] As a further preferred solution of the present invention, the conveying mechanism includes a bracket, a conveyor belt and a guide plate, the conveyor belt is installed on the bracket, the guide plates are arranged on both sides of the conveyor belt, the spacing between the guide plates on the glass bottle inlet side is greater than the spacing between the guide plates on the glass bottle outlet side, and a downwardly inclined slide is arranged at one end of the glass bottle outlet, and the slide is located on the guide plate on one side of the conveyor belt. A guide plate for adjusting the traveling direction of the glass bottle is arranged.

[0008] As a further preferred scheme of the present invention, a flip motor of the flip mechanism is installed on the first plate, the flip motor establishes a control connection with the programmable PLC, the output end of the flip motor establishes a rotation connection with the rotating shaft through a belt, one end of the rotating shaft is rotatably installed on the first plate, and the other end is rotatably installed on a second plate which is parallel to and fixedly connected to the first plate, the second plate is provided with an arc-shaped rolling groove, the moving block located on one side of the second plate moves along the rolling groove through a rotatably installed roller, sliding rods are fixedly arranged on both sides of the moving block, and the sliding rods are slidably arranged on the rotating slots, one of the rotating slots is rotatably connected to the rotating shaft on the second plate, and the other rotating slot is rotatably installed on a base, the base is fixedly installed on the lower part of the second plate through a connecting piece, and a flexible rubber bottle holder is fixedly installed on the end of the sliding rod rotatably connected to the base, the rubber bottle holder is a cavity structure, and its two ends and the side facing the transmission mechanism are open, and the bottom of the rubber bottle holder is set to be conical and the upper part is cylindrical.

[0009] As a further preferred solution of the present invention, the spraying mechanism includes a bearing platform, an adjustment frame and a nozzle; The supporting platform is in a rectangular parallelepiped structure, and a mounting groove is provided at the upper end thereof. The adjusting frame is mounted on the mounting groove through a movable mounting piece in the mounting groove, and the nozzle is fixedly mounted on the adjusting frame.

[0010] As a further preferred scheme of the present invention, limiting grooves with the same width are opened on both sides of the lower part of the installation groove, and the width of the limiting grooves is greater than the width of the installation groove; the movable mounting part includes a boss with an external thread, a stop block at the bottom and a mounting sleeve with an internal thread at the top, the boss is threadedly installed in the mounting sleeve, the stop block is fixedly connected to the bottom of the mounting sleeve, and is arranged in the limiting groove.

[0011] As a further preferred solution of the present invention, the adjustment frame includes a vertical rod, a first horizontal rod and a second horizontal rod. The vertical rod and the first horizontal rod and the first horizontal rod and the second horizontal rod are fixedly connected by fasteners. The nozzle is installed at one end of the second horizontal rod by the fasteners and is connected to the glaze feeder by a spray pipe.

[0012] As a further preferred solution of the present invention, the transmission mechanism includes a transmission belt, a rotating unit and a rotating rod, both ends of the transmission belt are rotatably connected to the rotating wheel, the rotating wheel is rotatably connected to the power mechanism in the equipment cabin, the shell of the equipment cabin facing the side of the transmission belt is an injection baffle, and the equipment cabin is also provided with the programmable PLC that establishes a control connection with the power mechanism in the equipment cabin; the rotating unit is fixedly installed on the outer surface of the transmission belt at equal intervals.

[0013] As a further preferred solution of the present invention, the rotating unit includes a rotating motor and a gearbox, the output end of the rotating motor is connected to the gearbox, the output end of the gearbox is fixed to the rotating rod, a circular support is fixedly provided on the outside of the rotating rod, the bottle mouth of the glass bottle is inserted into the rotating rod and supported by the support, and the upper part of the support is provided with a silicone layer.

[0014] As a further preferred solution of the present invention, the unloading machine consists of a unloading belt and side plates, the side plates are arranged on both sides of the unloading belt, the unloading belt close to the transmission mechanism is located at the lower side of the transmission mechanism and is inclined, and the unloading belt away from the transmission mechanism is horizontally arranged.

[0015] A spraying method using an automated spraying device for applying colored glaze on the surface of a glass bottle, the spraying method comprising the following steps: Step 1: Write a processing program in the programmable PLC, run and debug the action stroke of each mechanism of the automatic spraying device, place the glass bottle on the conveying mechanism, and convey it along the conveying mechanism to the spraying mechanism; Step 2: After the glass bottle is conveyed to the tail end of the conveying mechanism, it slides obliquely downward into the rubber bottle holder of the flipping mechanism with the bottle mouth facing downward. The rubber bottle holder runs along an arc track, so that the bottle mouth of the glass bottle in the rubber bottle holder moves vertically downward. The transmission mechanism drives the rotating rod to rotate from bottom to top. Through the control of the programmable PLC, on the running track of the rubber bottle holder and the rotating rod, the end of the rotating rod extends into the bottle mouth of the glass bottle in the rubber bottle holder, and the glass bottle is picked out through the opening of the rubber bottle holder; Step 3: The glass bottle rotates on the rotating rod and the rotating unit and moves horizontally along the transmission belt, and the nozzles arranged on the adjustment frame spray the colored glaze onto the surface of the glass bottle at different heights and angles; Step 4: After spraying, the glass bottle moves along the conveyor belt to the tail end, then separates from the rotating rod and slides obliquely downward onto the unloading belt of the unloading machine to be transported to the next processing workshop.

[0016] The present invention optimizes the structure of the spraying device, sets a conveying mechanism to feed the glass bottle, sets a flipping mechanism between the conveying mechanism and the transmission mechanism, drives the glass bottle to change the arc through the flipping mechanism, automatically places the glass bottle on the transmission mechanism, and rotates the glass bottle when passing through the spraying mechanism through the rotating unit and the rotating rod on the transmission mechanism, so that the colored glaze sprayed by the nozzle can be evenly sprayed on the circumferential surface of the glass bottle; the present invention can flexibly adjust the number, spraying height and angle of the nozzle according to production needs through the adjustment frame and the movable mounting parts, and by setting multiple nozzles, different colored glazes can be sprayed on different positions on the same glass bottle through different nozzles at the same time, which greatly improves the production performance of the device. Compared with traditional devices and production processes, the present invention has a high degree of automation, reduces the manual participation links, and improves the production efficiency of glass bottle spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an automatic spraying device for colored glaze on the surface of a glass bottle proposed by the present invention; Figure 2 This is a schematic diagram of the structure of a conveying mechanism in an automatic spraying device for colored glaze on the surface of a glass bottle proposed by the present invention; Figure 3 This is a schematic diagram of the positions of a conveying mechanism, a turning mechanism and a transmission mechanism in an automatic spraying device for colored glaze on the surface of a glass bottle proposed by the present invention; Figure 4 This is a schematic diagram of the positions between the spraying mechanism and the transmission mechanism in an automatic spraying device for colored glaze on the surface of a glass bottle proposed by the present invention; Figure 5 This is a structural schematic diagram of a spraying mechanism in an automatic spraying device for applying colored glaze on the surface of a glass bottle proposed by the present invention; Figure 6 A schematic diagram of the installation relationship between the installation groove and the movable installation part in an automatic spraying device for colored glaze on the surface of a glass bottle proposed by the present invention; Figure 7 This is a schematic diagram of the installation between the rotating unit and the rotating rod in an automatic spraying device for colored glaze on the surface of a glass bottle proposed by the present invention; Figure 8 This is a schematic structural diagram from a first perspective of a flip mechanism in an automatic spraying device for colored glaze on the surface of a glass bottle proposed by the present invention; Fig. 9Schematic diagram of the second perspective structure of the flipping mechanism in an automatic spraying device for the surface glaze of glass bottles proposed by the present invention; Fig.10 Schematic diagram of the conduction relationship of the flipping mechanism in an automatic spraying device for the surface glaze of glass bottles proposed by the present invention.

[0018] Reference numerals in the figure: 1, conveying mechanism; 11, support; 12, conveyor belt; 13, guide plate; 14, guiding plate; 15, sliding plate; 2, flipping mechanism; 21, flipping motor; 22, first plate; 23, belt; 24, rotating shaft; 25, second plate; 251, rolling groove; 26, moving block; 261, roller; 262, sliding rod; 263, rotating clamping groove; 27, base; 271, connecting piece; 28, rubber bottle holder; 3, spraying mechanism; 31, bearing platform; 32, installation groove; 321, limiting through groove; 33, movable mounting piece; 331, convex column; 332, stop block; 333, mounting sleeve; 34, adjusting frame; 341, vertical rod; 342, first horizontal rod; 343, second horizontal rod; 344, fastener; 35, nozzle; 4, transmission mechanism; 41, transmission belt; 42, rotating unit; 421, rotating motor; 422, gearbox; 43, rotating rod; 431, supporting platform; 44, rotating wheel; 45, equipment cabin; 5, blanking machine; 51, blanking belt; 52, side plate. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Refer to Figure 1 , in this embodiment, an automatic spraying device for the surface glaze of glass bottles is first proposed. The device includes a conveying mechanism 1, a flipping mechanism 2, a spraying mechanism 3, a transmission mechanism 4, a blanking machine 5, and a programmable PLC for controlling the automatic spraying device.

[0021] Among them, the conveying mechanism 1 is installed in the front of the spraying mechanism 3 and the transmission mechanism 4 and is used to convey the glass bottles to be sprayed.

[0022] The flipping mechanism 2 is arranged between the conveying mechanism 1 and the transmission mechanism 4, and flips the glass bottles to be sprayed and places them on the rotating unit 42 of the transmission mechanism 4.

[0023] The spraying mechanism 3 is arranged on one side of the transmission mechanism 4, and a plurality of nozzles 35 with adjustable height and angle are arranged on its upper part to spray glaze spray on the glass bottles.

[0024] The transmission mechanism 4 has a rotating unit 42 for rotating the glass bottles installed on the outer side of its transmission belt 41.

[0025] The unloading machine 5 is arranged at the lower side of the transmission mechanism 4 to receive the glass bottles that have been sprayed on the transmission mechanism 4.

[0026] like Figure 2 As shown, the conveying mechanism 1 in the automatic spraying device includes a bracket 11, a conveyor belt 12 and a guide plate 13. The conveyor belt 12 is installed on the bracket 11. The guide plates 13 are arranged on both sides of the conveyor belt 12. The spacing between the guide plates 13 on the glass bottle inlet side of the conveying mechanism 1 is greater than the spacing between the guide plates 13 on the glass bottle outlet side. Several glass bottles can be placed at the inlet end of the conveying mechanism 1 at one time. A downwardly inclined slide plate 15 is arranged at the glass bottle outlet end of the conveying mechanism 1. The slide plate 15 is located on the guide plate 13 on the side of the conveyor belt 12. A guide plate 14 for adjusting the travel direction of the glass bottle is arranged. The glass bottle needs to be placed horizontally, and when placed on the conveyor belt 12, the bottle mouth of the glass bottle needs to face the travel direction of the conveyor belt 12.

[0027] Please refer to Figure 3 and Figure 8-Figure 10 The turning mechanism 2 in this embodiment mainly includes a turning motor 21 and a rubber bottle holder 28. The turning motor 21 drives the rubber bottle holder 28 to run along an arc track.

[0028] Specifically, the flip motor 21 of the flip mechanism 2 is mounted on the first plate 22, and the flip motor 21 establishes a control connection with the programmable PLC, and the operation of the flip motor 21 is controlled by the programmable PLC, thereby controlling the movement trajectory of the rubber bottle holder 28. The output end of the flip motor 21 is rotatably connected to the shaft 24 through the belt 23, one end of the shaft 24 is rotatably mounted on the first plate 22, and the other end is rotatably mounted on the second plate 25 parallel to and fixedly connected to the first plate 22, and the flip motor 21 drives the shaft 24 to rotate through the belt 23.

[0029] An arc-shaped rolling groove 251 is provided on the second plate 25. The moving block 26 located on one side of the second plate 25 moves along the rolling groove 251 through a rotatably installed roller 261. Slide rods 262 are fixedly provided on both sides of the moving block 26. The slide rods 262 are slidably provided on the rotating grooves 263. One of the rotating grooves 263 is rotatably connected to the rotating shaft 24 on the second plate 25, and the other rotating groove 263 is rotatably installed on the base 27. The base 27 is fixedly installed on the lower part of the second plate 25 through a connecting piece 271. A flexible rubber bottle holder 28 is fixedly installed on the end of the slide rod 262 rotatably connected to the base 27. The rubber bottle holder 28 is a cavity structure, and its two ends and the side facing the transmission mechanism 4 are open. The bottom of the rubber bottle holder 28 is set to be conical and the upper part is cylindrical.

[0030] When the rotating shaft 24 rotates, the rotating slot 263 connected to the end of the rotating shaft 24 rotates synchronously, and when the roller 261 moves in the rolling groove 251, the slide bar 262 slides along the rotating slot 263 along the moving track of the roller 261 to adjust the distance between the rotating slot 263 and the roller 261. Similarly, when the moving block 26 moves, the slide bar 262 on the other side slides accordingly, synchronously rotating with the rotating slot 263 on the base 27, and finally causing the rubber bottle holder 28 at the end of the slide bar 262 to move along a certain arc track.

[0031] like Figure 1 and Figure 4 As shown, the spraying mechanism 3 in this embodiment includes a supporting platform 31, an adjusting frame 34 and a nozzle 35. The supporting platform 31 is a rectangular parallelepiped structure, and a mounting groove 32 is opened at its upper end. The adjusting frame 34 is installed on the mounting groove 32 through a movable mounting member 33 in the mounting groove 32, and the nozzle 35 is fixedly installed on the adjusting frame 34.

[0032] Please refer to Figure 5 The adjustment frame 34 includes a vertical rod 341, a first horizontal rod 342 and a second horizontal rod 343. The vertical rod 341 and the first horizontal rod 342 and the first horizontal rod 342 and the second horizontal rod 343 are fixedly connected by fasteners 344. The nozzle 35 is installed at one end of the second horizontal rod 343 by the fasteners 344. The spraying height of the nozzle 35 can be adjusted by adjusting the height of the first horizontal rod 342, that is, the upper and lower areas of the surface of the glass bottle sprayed by the nozzle 35. By adjusting the fixed angle of the fastener 344, the direction of the nozzle 35 is adjusted, and then the spraying angle of the nozzle 35 is adjusted. The nozzle 35 is connected to the glaze feeder through the spray pipe. The structure of the fastener 344 in this embodiment can refer to the fixed parts used when the scaffold is installed.

[0033] like Figure 6 , further introduces the installation method between the adjustment frame 34 and the installation groove 32. The two sides of the lower part of the installation groove 32 are provided with limiting grooves 321 of the same width, and the width of the limiting groove 321 is greater than the width of the installation groove 32; the movable installation member 33 includes a boss 331 with an external thread, a stop block 332 at the bottom, and a mounting sleeve 333 with an internal thread at the top, and the top of the boss 331 is fixedly connected to the bottom of the vertical rod 341. The boss 331 is threadedly installed in the mounting sleeve 333, and the stop block 332 is fixedly connected to the bottom of the mounting sleeve 333 and is arranged in the limiting groove 321. The stop block 332 can move in the limiting groove 321. By fixing the boss 331 and the mounting sleeve 333, the vertical rod 341 of the adjustment frame 34 is fixed, and the position of the adjustment frame 34 on the support platform 31 can be adjusted to adjust the injection density of the nozzle 35 per unit time.

[0034] like Figure 3 and Figure 7As shown in the figure, the transmission mechanism 4 of this embodiment includes a transmission belt 41, a rotating unit 42, and a rotating rod 43.

[0035] Both ends of the transmission belt 41 are rotatably connected to a rotating wheel 44. The rotating wheel 44 is rotatably connected to a power mechanism in the equipment cabin 45. The housing of the equipment cabin 45 facing the transmission belt 41 is a spraying baffle. A programmable PLC that is in control connection with the power mechanism in the equipment cabin 45 is also provided in the equipment cabin 45. The moving speed of the transmission belt 41 is regulated by the programmable PLC.

[0036] The rotating units 42 are fixedly installed on the outer surface of the transmission belt 41 at equal intervals. The rotating unit 42 includes a rotating motor 421 and a gearbox 422. The output end of the rotating motor 421 is connected to the gearbox 422. The output end of the gearbox 422 is fixed to the rotating rod 43. An annular support table 431 is fixedly provided on the outside of the rotating rod 43. The mouth of the glass bottle is inserted into the rotating rod 43 and is carried by the support table 431. The upper part of the support table 431 is provided with a silica gel layer. The mouth of the glass bottle is vertically placed on the silica gel layer on the upper part of the support table 431. On the one hand, the silica gel layer can avoid damaging the mouth of the glass bottle. On the other hand, the silica gel layer can provide a large frictional force, and the glass bottle is urged to rotate along the rotating rod 43 through this frictional force.

[0037] As Figure 1 shown in the figure, the blanking machine 5 is composed of a blanking belt 51 and side plates 52. The side plates 52 are arranged on both sides of the blanking belt 51. The blanking belt 51 close to the transmission mechanism 4 is located below the side of the transmission mechanism 4 and is inclined, and the blanking belt 51 far from the transmission mechanism 4 is arranged horizontally.

[0038] In this embodiment, based on the structural features of the above-mentioned automatic spraying device for the surface glaze of glass bottles, a method for automatically spraying the surface glaze of glass bottles is further proposed. The spraying method includes the following steps: Step 1, write a processing program in the programmable PLC, run and debug the action strokes of the various mechanisms of the automatic spraying device. The glass bottle is horizontally placed on the conveying mechanism 1, and the mouth of the glass bottle faces the moving direction. The glass bottle is conveyed to the spraying mechanism 3 along the conveying mechanism 1.

[0039] Step 2: After the glass bottle is conveyed to the tail end of the conveying mechanism 1, the position is corrected by the guide plate 14, and the glass bottle slides down obliquely with the bottle mouth facing downward. At this time, under the control of the programmable PLC, the rubber bottle holder 28 on the flip mechanism 2 just moves to the bottom of the slide plate 15, ensuring that the glass bottle slides into the rubber bottle holder 28 of the flip mechanism 2. The rubber bottle holder 28 runs along an arc track, driving the bottle mouth of the glass bottle in the rubber bottle holder 28 to move in a vertical downward direction, and the transmission mechanism 4 drives the rotating rod 43 to rotate from bottom to top. Through the control of the programmable PLC, on the running track of the rubber bottle holder 28 and the rotating rod 43, the end of the rotating rod 43 extends into the bottle mouth of the glass bottle in the rubber bottle holder 28, and the glass bottle is picked out through the opening of the rubber bottle holder 28. The glass bottle changes from an inclined direction to a vertical direction with the bottle mouth facing downward until the bottle mouth of the glass bottle is supported by the support 431 on the rotating rod 43.

[0040] Step 3: The rotating motor 421 of the rotating unit 42 is running, driving the rotating rod 43 to rotate, and by means of the friction between the bottle mouth of the glass bottle and the support 431, the glass bottle is rotated on the rotating rod 43 and the rotating unit 42, and moves horizontally along the transmission belt 41. According to the spraying requirements of the glass bottle, the nozzle 35 set on the adjustment frame 34 can be adjusted to spray the colored glaze on the surface of the glass bottle at different heights and angles.

[0041] Step 4: After the spraying is completed, the glass bottle moves along the transmission belt 41 to the tail end, then separates from the rotating rod 43, and slides obliquely downward onto the unloading belt 51 of the unloading machine 5, and is transported to the next processing workshop.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic spraying device for colored glaze on the surface of glass bottles, characterized in that: include: A conveying mechanism (1) is installed in front of the spraying mechanism (3) and the transmission mechanism (4) and is used to convey the glass bottles to be sprayed; The turning mechanism (2) is arranged between the conveying mechanism (1) and the transmission mechanism (4), and turns over the glass bottle to be sprayed and places it on the rotating unit (42) of the transmission mechanism (4); The spraying mechanism (3) is arranged on one side of the transmission mechanism (4), and a plurality of nozzles (35) with adjustable height and angle are arranged on the upper part thereof to spray the colored glaze spray material onto the glass bottle; A transmission mechanism (4), wherein a rotating unit (42) for rotating the glass bottle is mounted on the outer side of the transmission belt (41); A feeder (5) is arranged at the lower side of the transmission mechanism (4) and receives the spray-coated glass bottles on the transmission mechanism (4); And a programmable PLC for controlling the automated spraying device.

2. The automatic spraying device for colored glaze on the surface of glass bottles according to claim 1 is characterized in that: The conveying mechanism (1) comprises a support (11), a conveyor belt (12) and a guide plate (13); the conveyor belt (12) is mounted on the support (11); the guide plates (13) are arranged on both sides of the conveyor belt (12); the spacing between the guide plates (13) on the glass bottle inlet side is greater than the spacing between the guide plates (13) on the glass bottle outlet side; a downwardly inclined slide plate (15) is arranged at one end of the glass bottle outlet; and a guide plate (14) for adjusting the traveling direction of the glass bottles is arranged on the guide plate (13) on the conveyor belt (12) side.

3. The automatic spraying device for colored glaze on the surface of glass bottles according to claim 1 is characterized in that: The flipping motor (21) of the flipping mechanism (2) is mounted on the first plate (22), the flipping motor (21) is in control connection with the programmable PLC, the output end of the flipping motor (21) is in rotational connection with the rotating shaft (24) via a belt (23), one end of the rotating shaft (24) is rotationally mounted on the first plate (22), and the other end is rotationally mounted on a second plate (25) parallel to and fixedly connected to the first plate (22), the second plate (25) is provided with an arc-shaped rolling groove (251), a moving block (26) located on one side of the second plate (25) moves along the rolling groove (251) via a rotatably mounted roller (261), and sliding rods are fixedly arranged on both sides of the moving block (26). (262), the sliding rods (262) are all slidably arranged on the rotating slots (263), one of the rotating slots (263) is rotatably connected to the rotating shaft (24) on the second plate (25), and the other rotating slot (263) is rotatably mounted on the base (27), the base (27) is fixedly mounted on the lower part of the second plate (25) through a connecting piece (271), and a flexible rubber bottle holder (28) is fixedly mounted on the end of the sliding rod (262) rotatably connected to the base (27), the rubber bottle holder (28) is a hollow structure, both ends and the side facing the transmission mechanism (4) are open, and the bottom of the rubber bottle holder (28) is set to be conical and the upper part is cylindrical.

4. The automatic spraying device for colored glaze on the surface of glass bottles according to claim 1 is characterized in that: The spraying mechanism (3) comprises a bearing platform (31), an adjustment frame (34) and a nozzle (35); The support platform (31) is in a rectangular parallelepiped structure, and a mounting groove (32) is provided at the upper end thereof; the adjustment frame (34) is mounted on the mounting groove (32) via a movable mounting member (33) in the mounting groove (32); and the nozzle (35) is fixedly mounted on the adjustment frame (34).

5. The automatic spraying device for colored glaze on the surface of glass bottles according to claim 4 is characterized in that: The lower part of the installation groove (32) is provided with limiting grooves (321) of the same width on both sides, and the width of the limiting groove (321) is greater than the width of the installation groove (32); the movable installation part (33) comprises a boss (331) with an external thread, a stop block (332) at the bottom, and a mounting sleeve (333) with an internal thread at the top, the boss (331) is threadedly mounted in the mounting sleeve (333), the stop block (332) is fixedly connected to the bottom of the mounting sleeve (333), and is arranged in the limiting groove (321).

6. The automatic spraying device for colored glaze on the surface of glass bottles according to claim 4, characterized in that: The adjustment frame (34) comprises a vertical rod (341), a first horizontal rod (342) and a second horizontal rod (343); the vertical rod (341) and the first horizontal rod (342) as well as the first horizontal rod (342) and the second horizontal rod (343) are fixedly connected via fasteners (344); the nozzle (35) is mounted on one end of the second horizontal rod (343) via the fastener (344) and is connected to a glaze feeder via a spray pipe.

7. The automatic spraying device for colored glaze on the surface of glass bottles according to claim 1 is characterized in that: The transmission mechanism (4) comprises a transmission belt (41), a rotating unit (42) and a rotating rod (43); both ends of the transmission belt (41) are rotationally connected to a rotating wheel (44); the rotating wheel (44) is rotationally connected to a power mechanism in an equipment cabin (45); a shell of the equipment cabin (45) facing the transmission belt (41) is a spray baffle; the equipment cabin (45) is also provided with the programmable PLC that is control-connected to the power mechanism in the equipment cabin (45); and the rotating units (42) are fixedly mounted at equal intervals on the outer surface of the transmission belt (41).

8. The automatic spraying device for colored glaze on the surface of glass bottles according to claim 7, characterized in that: The rotating unit (42) comprises a rotating motor (421) and a gearbox (422); the output end of the rotating motor (421) is connected to the gearbox (422); the output end of the gearbox (422) is fixed to the rotating rod (43); a circular support platform (431) is fixedly provided on the outside of the rotating rod (43); the mouth of the glass bottle is inserted into the rotating rod (43) and supported by the support platform (431); the upper part of the support platform (431) is provided with a silicone layer.

9. The automatic spraying device for colored glaze on the surface of glass bottles according to claim 1, characterized in that: The unloading machine (5) is composed of an unloading belt (51) and side plates (52), wherein the side plates (52) are arranged on both sides of the unloading belt (51), the unloading belt (51) close to the transmission mechanism (4) is located below the transmission mechanism (4) and is arranged in an inclined manner, and the unloading belt (51) away from the transmission mechanism (4) is arranged horizontally.

10. A method for spraying colored glaze on the surface of a glass bottle using the automatic spraying device for colored glaze on the surface of a glass bottle according to any one of claims 1 to 9, characterized in that: The spraying method comprises the following steps: Step 1: Write a processing program in a programmable PLC, run and debug the action stroke of each mechanism of the automatic spraying device, place the glass bottle on the conveying mechanism (1), and convey it along the conveying mechanism (1) to the spraying mechanism (3); Step 2: After the glass bottle is conveyed to the rear end of the conveying mechanism (1), it slides obliquely downward into the rubber bottle holder (28) of the flipping mechanism (2) with the bottle mouth facing downward. The rubber bottle holder (28) moves along an arc track, so that the bottle mouth of the glass bottle in the rubber bottle holder (28) moves in a vertical downward direction. The transmission mechanism (4) drives the rotating rod (43) to rotate from bottom to top. Through the control of the programmable PLC, on the running track of the rubber bottle holder (28) and the rotating rod (43), the end of the rotating rod (43) extends into the bottle mouth of the glass bottle in the rubber bottle holder (28), and the glass bottle is picked out through the opening of the rubber bottle holder (28); Step 3: the glass bottle rotates on the rotating rod (43) and the rotating unit (42), and moves horizontally along the transmission belt (41), and the nozzle (35) arranged on the adjustment frame (34) sprays the colored glaze onto the surface of the glass bottle at different heights and angles; Step 4: After the spraying is completed, the glass bottle moves along the transmission belt (41) to the tail end, then separates from the rotating rod (43), slides obliquely downward onto the unloading belt (51) of the unloading machine (5), and is transported to the next processing workshop.

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