Spraying device and method for bottle body exterior treatment based on glass bottle production

Abstract

The invention relates to the technical field of spraying devices, and discloses a spraying device and method for treating the exterior of a bottle body based on glass bottle production, and the spraying device for treating the exterior of the bottle body based on glass bottle production comprises a spraying reciprocator, a workbench arranged on one side of the spraying reciprocator and a spraying gun arranged on a movable rod of the spraying reciprocator. The workbench is provided with a rotatable supporting assembly used for placing a glass bottle, the peripheral side of the supporting assembly is symmetrically provided with two mounting frames, the mounting frames are provided with hollowed-out shielding cloth used for wrapping the body of the glass bottle, the mounting frames are further provided with powerful magnets, and the powerful magnets on the two mounting frames attract each other when getting close to each other; a driving mechanism is further arranged on the peripheral side of the supporting assembly. According to the device, disposable consumables are replaced by the hollowed-out shielding cloth which can be repeatedly used for hundreds of times, and the production cost and waste discharge are remarkably reduced in combination with the self-adaptive fitting design.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying devices, and particularly to a spraying device and method for external treatment of bottle bodies based on glass bottle production. Background Art

[0002] In the field of glass bottle packaging, in order to enhance brand recognition and product value, local spraying (such as corporate decoration patterns, etc.) is often carried out on the outer surface of the bottle body. This type of spraying usually requires precise masking of non-target areas of the bottle body to ensure clear patterns, sharp boundaries, and avoid coating contamination of other parts of the bottle body.

[0003] Currently, the widely used local masking technologies mainly have the following significant defects: 1. Rigid hollow fixture method: Although it can complete the fixation of the bottle body and expose the local spraying area, its adaptability is poor. When changing the bottle type or pattern, new fixtures need to be customized again, resulting in high costs, long cycles, and cumbersome storage and switching.

[0004] 2. Disposable film local masking method: Although it has a certain degree of flexibility, it relies on high-frequency consumables, and the material consumption and waste treatment costs continue to accumulate, resulting in great environmental protection pressure.

[0005] Therefore, the existing technologies are difficult to simultaneously meet the market demands of small batches, multiple varieties, and sustainable production. Summary of the Invention

[0006] In view of the problems of poor adaptability and high cost of rigid hollow fixtures, as well as large waste of consumables and great environmental protection pressure of disposable masking films in the existing technologies, a spraying device and method for external treatment of bottle bodies based on glass bottle production are proposed.

[0007] On the one hand, the present application provides a spraying device for external treatment of bottle bodies based on glass bottle production, and its purpose is to: replace disposable consumables with a hollow masking cloth that can be reused hundreds of times, and combine with an adaptive fitting design to significantly reduce production costs and waste emissions, and finally achieve the coordinated optimization of economy, environmental protection, and high-quality spraying.

[0008] The technical solution of the present invention is as follows: a spraying device for external treatment of the bottle body in glass bottle production, including a spraying reciprocator, a workbench arranged on one side of the spraying reciprocator, and a spray gun arranged on the movable rod of the spraying reciprocator. A support assembly for rotatably placing glass bottles is arranged on the workbench. Two mounting frames are symmetrically arranged on the periphery of the support assembly. A hollowed-out shielding cloth for covering the bottle body of the glass bottle is arranged on the mounting frames. Strong magnets are also arranged on the mounting frames, and the strong magnets on the two mounting frames attract each other when approaching; a driving mechanism is also arranged on the periphery of the support assembly, and the driving mechanism is used to drive the hollowed-out shielding cloth to cover the bottle body of the glass bottle; the driving mechanism includes two arc-shaped push plates that can approach each other to push the mounting frames; a separating mechanism is arranged on the workbench. After the hollowed-out shielding cloth covers the bottle body of the glass bottle, the separating mechanism is used to force the two mounting frames to separate and then reset.

[0009] Further, the mounting frame includes a connecting piece arranged on the periphery of the support assembly, a horizontal insertion rod arranged at one end of the connecting piece, and a vertical insertion rod arranged at the other end of the connecting piece. A plurality of horizontal insertion rods are provided, and adjacent two horizontal insertion rods are inserted into each other. One ends of two of the horizontal insertion rods are inserted into one end of the connecting piece. A plurality of vertical insertion rods are provided, and adjacent two vertical insertion rods are inserted into each other. One ends of two of the vertical insertion rods are inserted into the other end of the connecting piece. The hollowed-out shielding cloth is sleeved on the rod walls of the plurality of horizontal insertion rods and the plurality of vertical insertion rods, and the strong magnet is fixedly installed on the outer wall of the connecting piece.

[0010] Further, the support assembly includes a vertical rod rotatably installed on the top surface of the workbench, a threaded section arranged at the top end of the vertical rod, and a bearing block detachably installed on the threaded section.

[0011] Further, the inner wall of the bearing block is threadedly connected to the outer wall of the threaded section.

[0012] Further, the driving mechanism further includes a fixed frame arranged at the bottom of the mounting frame, a sliding hole opened on the outer wall of the arc-shaped push plate for installing the fixed frame, a through groove opened on the rod wall of the fixed frame, a sleeve sleeved on the rod wall of the vertical rod, and a pull rod hinged to the bottom surface of the arc-shaped push plate. One end of the pull rod away from the arc-shaped push plate is rotatably connected to the outer wall of the sleeve; the driving mechanism further includes a positioning cylinder threadedly installed on the outer wall of the threaded section.

[0013] Further, the driving mechanism further includes a lifting cylinder sleeved on the outer wall of the arc-shaped push plate, and the inner wall of the lifting cylinder is fixedly connected to the outer wall of the fixed frame; the driving mechanism further includes a tension spring arranged on the inner wall of the lifting cylinder, and one end of the tension spring away from the lifting cylinder is fixedly connected to the outer wall of the arc-shaped push plate; the driving mechanism further includes a bracket arranged at the bottom surface of the lifting cylinder, and the bracket can be lifted and lowered on the workbench.

[0014] Further, the driving mechanism further includes rollers arranged at the bottom end of the bracket, sliding rails arranged on the workbench, wedges arranged on the sliding rails, and pedals arranged on the outer walls of the wedges, and the outer walls of the wedges are adapted to the outer walls of the rollers.

[0015] Further, the separating mechanism includes multiple groups of separating elastic sheet groups arranged at the top of the lifting cylinder. Each group of separating elastic sheet groups contains two separating elastic sheets, and the tips of the two separating elastic sheets are in contact with each other to form an inverted V shape, and the tips of the separating elastic sheets are plated with a hardening layer; the separating mechanism further includes inclined grooves opened on the side surface of the separating elastic sheet close to the strong magnet.

[0016] Further, the separating mechanism further includes an installation groove opened at the top of the lifting cylinder and an adjusting plate arranged inside the installation groove, and one end of the adjusting plate close to the separating elastic sheet is fixedly connected to the bottom end of the separating elastic sheet.

[0017] Further, the present invention also provides a spraying method for external treatment of the bottle body based on glass bottle production. Using a spraying device for external treatment of the bottle body based on glass bottle production, it includes the following steps: Step 1: Two arc-shaped push plates approach each other to push the hollowed-out shielding cloth against the bottle body of the glass bottle, causing the strong magnets on the two mounting brackets to attract each other. Finally, the two mounting brackets are surrounded and fixed on the bottle body of the glass bottle, and the hollowed-out shielding cloth shields the non-sprayed part of the bottle body of the glass bottle; Step 2: The spray gun sprays the hollowed-out area of the hollowed-out shielding cloth to complete the partial spraying of the outer surface of the bottle body of the glass bottle; Step 3: Lift the lifting cylinder so that the tips of adjacent two separating elastic sheets are inserted between the attracted strong magnets. Furthermore, the inclined surface of the separating elastic sheet exerts a radial separating force on the strong magnet, and the two mounting brackets are released from the surrounded state; Step 4: The two mounting brackets are reset under the action of gravity, and the hollowed-out shielding cloth detaches from the bottle body of the glass bottle.

[0018] Advantages of the present invention: 1. Through the modular-designed mounting brackets, adjustable horizontal insertion rods, and vertical insertion rod structures, rapid adaptation to glass bottles of different sizes and shapes is achieved, significantly improving production efficiency; 2. Through the magnetic adsorption of strong magnets and the non-contact hollowed-out shielding cloth design, both the shielding stability is ensured and the problem of paint penetration caused by traditional contact shielding is avoided, significantly improving product quality; 3. In terms of environmental protection and economy, the reusable hollowed-out shielding cloth can reduce the consumable cost compared with the disposable film process, and at the same time reduce the generation of waste, meeting the requirements of green manufacturing; 4. All operations can be completed by pushing the pedal with the foot, which not only reduces energy consumption but also simplifies the human-machine interaction. Generally speaking, this device is significantly superior to the traditional spraying process in terms of adaptability, precision, environmental protection, and operation convenience, and is especially suitable for the customized production needs of high-end glass bottles in small batches and with multiple varieties. Brief Description of the Drawings

[0019] Figure 1 is a perspective view of the spraying device of the present invention; Figure 2 is a schematic installation view of the pedal in the present invention; Figure 3 is a cross-sectional view of the lifting cylinder in the present invention; Figure 4 In the present invention Figure 3 is an enlarged schematic view of part A; Figure 5 is a schematic installation view of the hollow shielding cloth in the present invention; Figure 6 is a perspective view of the mounting bracket in the present invention; Figure 7 is a perspective view of the hollow shielding cloth in the present invention; Figure 8 is a schematic installation view of the horizontal insertion rod in the present invention; Figure 9 is a schematic installation view of the pull rod in the present invention; Figure 10 is a schematic installation view of the separating elastic piece in the present invention; Figure 11 is a perspective view of the separating elastic piece in the present invention; Figure 12 is a front view of the separating elastic piece in the present invention.

[0020] In the figure: 1. Spraying reciprocating machine; 2. Workbench; 3. Spray gun; 4. Support assembly; 5. Hollow shielding cloth; 6. Mounting bracket; 7. Connecting piece; 8. Horizontal insertion rod; 9. Vertical insertion rod; 10. Strong magnet; 11. Lifting cylinder; 12. Fixed bracket; 13. Through groove; 14. Arc-shaped push plate; 15. Slide hole; 16. Pull rod; 17. Sleeve; 18. Vertical rod; 19. Threaded section; 20. Bearing block; 21. Positioning cylinder; 22. Bracket; 23. Roller; 24. Wedge block; 25. Pedal; 26. Slide rail; 27. Installation groove; 28. Adjusting plate; 29. Separating elastic piece; 30. Inclined groove; 31. Tensile spring. Detailed Description of the Invention

[0021] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings of the specification.

[0022] Example 1, referring to Figures 1 - 12, which is the first embodiment of the present invention, provides a spraying device for external treatment of the bottle body based on glass bottle production, including a spraying reciprocator 1, a workbench 2 fixedly installed on one side of the spraying reciprocator 1, and a spray gun 3 slidably installed on the movable rod of the spraying reciprocator 1. A support assembly 4 for rotatably placing glass bottles is provided on the workbench 2. Two mounting frames 6 are symmetrically arranged on the periphery of the support assembly 4. A hollowed-out shielding cloth 5 for covering the bottle body of the glass bottle is arranged on the mounting frame 6. A strong magnet 10 is also arranged on the mounting frame 6, and the strong magnets 10 on the two mounting frames 6 attract each other when approaching; a driving mechanism is also arranged on the periphery of the support assembly 4, and the driving mechanism is used to drive the hollowed-out shielding cloth 5 to cover the bottle body of the glass bottle; the driving mechanism includes two arc-shaped push plates 14 that can approach each other to push the mounting frame 6; a separating mechanism is arranged on the workbench 2. After the hollowed-out shielding cloth 5 covers the bottle body of the glass bottle, the separating mechanism is used to force the two mounting frames 6 to separate and then reset.

[0023] Referring to Figures 2 - 3 , the support assembly 4 includes a vertical rod 18 rotatably installed on the top surface of the workbench 2, a threaded section 19 arranged at the top of the vertical rod 18, and a bearing block 20 detachably installed on the threaded section 19. The inner wall of the bearing block 20 is threadedly connected to the outer wall of the threaded section 19.

[0024] Specifically, a stepping motor (not shown in the figure) is connected to the bottom of the vertical rod 18, and the rotation speed is driven by a PLC to drive the glass bottle to rotate, ensuring the spraying uniformity. At the same time, through the stepping motor, the vertical rod 18 can be controlled to rotate to a fixed angle or not rotate. It can also be manually controlled by the spraying personnel to rotate or not rotate the vertical rod 18. The top shape of the bearing block 20 corresponds to the shape of the glass bottle mouth. The height of the bearing block 20 and the glass bottle is adjusted through the threaded section 19 to align the center of the bottle body with the spray gun 3. In addition, different bearing blocks 20 corresponding to different specifications can be replaced through the threaded section 19.

[0025] Patterns for local spraying (not shown in the figure) are provided on the hollowed-out shielding cloth 5, and the specific pattern shape can be determined according to actual usage requirements.

[0026] Referring to Figures 5 - 8 , the mounting frame 6 includes a connecting piece 7 arranged on the periphery of the support assembly 4, a horizontal insertion rod 8 arranged at one end of the connecting piece 7, and a vertical insertion rod 9 arranged at the other end of the connecting piece 7. A plurality of horizontal insertion rods 8 are provided, and adjacent two horizontal insertion rods 8 are inserted into each other. One end of two of the horizontal insertion rods 8 is inserted into one end of the connecting piece 7. A plurality of vertical insertion rods 9 are provided, and adjacent two vertical insertion rods 9 are inserted into each other. One end of two of the vertical insertion rods 9 is inserted into the other end of the connecting piece 7. The hollowed-out shielding cloth 5 is sleeved on the rod walls of the plurality of horizontal insertion rods 8 and the plurality of vertical insertion rods 9, and the strong magnet 10 is fixedly installed on the outer wall of the connecting piece 7.

[0027] Specifically, the outer wall of the connecting member 7 is provided with positioning protrusions (not shown in the figure), which cooperate with the grooves of the adjacent mounting frame 6 to ensure a small position deviation when the strong magnet 10 is attracted. Since the transverse insertion rod 8, the longitudinal insertion rod 9, and the connecting member 7 need to have a certain elastic deformation ability, they are preferably made of plastic. Through the combined design among the connecting member 7, the transverse insertion rod 8, and the longitudinal insertion rod 9, the device can flexibly adjust the number of the transverse insertion rod 8 and the longitudinal insertion rod 9 on the mounting frame 6 according to the bottle body size, ensuring that the hollow shielding cloth 5 can completely cover the area of the glass bottle body that needs to be shielded, thereby increasing the applicability of the device.

[0028] Refer to Figures 1 - 9 As shown in the figure, the driving mechanism further includes a fixing frame 12 provided at the bottom of the mounting frame 6, a sliding hole 15 opened on the outer wall of the arc-shaped push plate 14 for mounting the fixing frame 12, a through groove 13 opened on the rod wall of the fixing frame 12, a sleeve 17 sleeved on the rod wall of the vertical rod 18, and a pull rod 16 hinged to the bottom surface of the arc-shaped push plate 14, and one end of the pull rod 16 away from the arc-shaped push plate 14 is rotatably connected to the outer wall of the sleeve 17; the driving mechanism further includes a positioning cylinder 21 threadedly mounted on the outer wall of the threaded section 19.

[0029] Specifically, by rotating the positioning cylinder 21, the height of the positioning cylinder 21 can be adjusted, and then the height of the hollow part of the hollow shielding cloth 5 on the glass bottle body can be adjusted. When the sleeve 17 contacts the positioning cylinder 21, the two arc-shaped push plates 14 can approach each other to push the mounting frame 6 towards the glass bottle.

[0030] Refer to Figures 1 - 2 As shown in the figure, the driving mechanism further includes a lifting cylinder 11 sleeved on the outer wall of the arc-shaped push plate 14, and the inner wall of the lifting cylinder 11 is fixedly connected to the outer wall of the fixing frame 12; the driving mechanism further includes a tension spring 31 fixedly installed on the inner wall of the lifting cylinder 11, and one end of the tension spring 31 away from the lifting cylinder 11 is fixedly connected to the outer wall of the arc-shaped push plate 14; the driving mechanism further includes a bracket 22 fixedly installed on the bottom surface of the lifting cylinder 11, and the bracket 22 can be lifted on the workbench 2.

[0031] Specifically, through the provided tension spring 31, after the two arc-shaped push plates 14 approach each other, power can be provided for the two arc-shaped push plates 14 to reset. By controlling the upward movement of the bracket 22, the lifting cylinder 11 can be driven to move upward.

[0032] Refer to Figures 1 - 2 As shown in the figure, the driving mechanism further includes a roller 23 rotatably installed at the bottom end of the bracket 22, a slide rail 26 fixedly installed on the workbench 2, a wedge block 24 slidably installed on the slide rail 26, and a pedal 25 fixedly installed on the outer wall of the wedge block 24, and the outer wall of the wedge block 24 is adapted to the outer wall of the roller 23.

[0033] Specifically, by pushing the foot pedal 25, the wedge block 24 can be driven to slide along the slide rail 26, and its inclined surface pushes the roller 23 to rise, thereby driving the lifting cylinder 11 to move upward, which not only reduces energy consumption but also simplifies human-computer interaction.

[0034] Referring to Figures 10 - 12 , the separation mechanism includes multiple groups of separation spring pieces arranged at the top of the lifting cylinder 11. Each group of separation spring pieces contains two separation spring pieces 29, and the tips of the two separation spring pieces 29 are in contact with each other to form an inverted V shape, and the tips of the separation spring pieces 29 are plated with a hardening layer; the separation mechanism also includes an inclined groove 30 opened on the side of the separation spring piece 29 close to the strong magnet 10. The separation mechanism also includes a mounting groove 27 opened at the top of the lifting cylinder 11 and an adjusting plate 28 slidably mounted inside the mounting groove 27, and one end of the adjusting plate 28 close to the separation spring piece 29 is fixedly connected to the bottom end of the separation spring piece 29.

[0035] Specifically, the number of the mounting grooves 27 corresponds to the number of groups of the separation spring pieces. The hardened tips of the combined inverted V-shaped separation spring pieces 29 are inserted into the gap of the strong magnet 10, which can release the magnetic attraction of the strong magnet 10. By sliding the adjusting plate 28, the position of the separation spring piece 29 can be adjusted, and thus more specifications of glass bottles can be adapted, and the strong magnets 10 on the glass bottles of more specifications can be separated.

[0036] After the two mounting brackets 6 are pushed by the arc-shaped push plate 14 to wrap around the glass bottle body, the lifting cylinder 11 descends. Through the inclined groove 30, the adjacent two separation spring pieces 29 deform in opposite directions, playing a certain role in correcting the position of the strong magnet 10.

[0037] Working principle: First, the operator places the glass bottle to be sprayed on the bearing block 20 of the support assembly 4, and adjusts the height of the bearing block 20 and the glass bottle through the threaded section 19 so that the center of the bottle body is aligned with the spray gun 3. In addition, the bearing block 20 corresponding to different specifications can also be replaced through the threaded section 19. Subsequently, the number of the transverse insertion rods 8 and the longitudinal insertion rods 9 on the mounting bracket 6 is adjusted according to the bottle body size to ensure that the hollow shielding cloth 5 can completely cover the area of the glass bottle body that needs to be shielded.

[0038] By pushing the foot pedal 25, the wedge block 24 can be driven to slide along the slide rail 26, and its inclined surface pushes the roller 23 to rise, thereby driving the lifting cylinder 11 to move upward. At the same time, the height of the positioning cylinder 21 can be adjusted. When the sleeves 17 are in contact with each other, the two arc-shaped push plates 14 can approach each other and push the mounting bracket 6 towards the glass bottle. During this process, the hollow shielding cloth 5 gradually wraps around the bottle body, and the strong magnets 10 on the mounting bracket 6 attract each other when approaching, so that the hollow shielding cloth 5 maintains a stable fitting state.

[0039] It should be noted that the outer periphery of the hollow shielding cloth 5 (the part sleeved on the transverse insertion rod 8 and the longitudinal insertion rod 9) contacts the bottle body of the glass bottle, and at the same time, there is a certain gap between the inside of the hollow shielding cloth 5 and the bottle body. On the one hand, this gap can prevent the hollow part of the hollow shielding cloth 5 from directly contacting the bottle body of the glass bottle and causing paint penetration. On the other hand, it can prevent the paint from spreading when passing through the hollow part of the hollow shielding cloth 5 due to an excessive gap.

[0040] In the spraying stage, the spray gun 3 moves along the movable rod under the drive of the spraying reciprocator 1, and precisely sprays the opening area of the hollow shielding cloth 5. The support assembly 4 drives the glass bottle to rotate slowly to ensure that the coating evenly covers the target area.

[0041] After spraying is completed, the operator releases the pedal 25, and the lifting cylinder 11 descends under the action of gravity. At this time, the separation elastic piece 29 fixed to the top of the lifting cylinder 11 is inserted into the gap between the two strong magnets 10. The design of its inverted V-shaped tip and the inclined groove 30 exerts a radial separation force on the magnets, forcing the mounting bracket 6 to separate from the bottle body. Finally, the mounting bracket 6 resets under the action of gravity, and the hollow shielding cloth 5 separates from the bottle body, completing a working cycle.

[0042] Embodiment 2, referring to Figures 1 - 12 , is the second embodiment of the present invention, which provides: a spraying method for external treatment of the bottle body based on glass bottle production, using a spraying device for external treatment of the bottle body based on glass bottle production, including the following steps: Step 1: The operator places the glass bottle to be sprayed on the bearing block 20 of the support assembly 4. The two arc-shaped push plates 14 approach each other to push the hollow shielding cloth 5 against the bottle body of the glass bottle, causing the strong magnets 10 on the two mounting brackets 6 to attract each other. Finally, the two mounting brackets 6 are clamped and fixed on the bottle body of the glass bottle. The hollow shielding cloth 5 shields the non-sprayed part of the bottle body of the glass bottle, and the arc-shaped push plate 14 resets under the action of the tension spring 31; Step 2: The spray gun 3 sprays the hollow area of the hollow shielding cloth 5 to complete the partial spraying of the outer surface of the bottle body of the glass bottle; Step 3: Lift the lifting cylinder 11 so that the tips of two adjacent separation elastic pieces 29 are inserted between the attracted strong magnets 10. Then, the inclined surface of the separation elastic piece 29 exerts a radial separation force on the strong magnets 10, and the two mounting brackets 6 are released from the clamped state; Step 4: The two mounting brackets 6 reset under the action of gravity, and the hollow shielding cloth 5 separates from the bottle body of the glass bottle, and the glass bottle completes the partial spraying.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. A spraying device for external treatment of the bottle body in glass bottle production, comprising a spraying reciprocating machine (1), a workbench (2) arranged on one side of the spraying reciprocating machine (1), and a spray gun (3) arranged on the movable end of the spraying reciprocating machine (1), characterized in that, A support assembly (4) rotatably used for placing glass bottles is arranged on the workbench (2). Two mounting brackets (6) are symmetrically arranged on the periphery of the support assembly (4). A hollow shielding cloth (5) used for covering the body of the glass bottle is arranged on the mounting bracket (6). A strong magnet (10) is also arranged on the mounting bracket (6), and the strong magnets (10) on the two mounting brackets (6) attract each other when approaching; A driving mechanism is further arranged on the periphery of the support assembly (4), and the driving mechanism is used for driving the hollow shielding cloth (5) to cover the body of the glass bottle; The driving mechanism includes two arc-shaped push plates (14) that can approach each other to push the mounting bracket (6); A separating mechanism is arranged on the workbench (2). After the hollow shielding cloth (5) covers the body of the glass bottle, the separating mechanism is used for forcing the two mounting brackets (6) to separate and then reset.

2. The spraying device for external treatment of the bottle body based on glass bottle production according to claim 1, wherein: The mounting bracket (6) includes a connecting piece (7) arranged on the periphery of the support assembly (4), a transverse insertion rod (8) arranged at one end of the connecting piece (7), and a longitudinal insertion rod (9) arranged at the other end of the connecting piece (7). A plurality of transverse insertion rods (8) are provided, and adjacent two transverse insertion rods (8) are inserted into each other. One end of two of the transverse insertion rods (8) is inserted into one end of the connecting piece (7). A plurality of longitudinal insertion rods (9) are provided, and adjacent two longitudinal insertion rods (9) are inserted into each other. One end of two of the longitudinal insertion rods (9) is inserted into the other end of the connecting piece (7). The hollow shielding cloth (5) is sleeved on the rod walls of the plurality of transverse insertion rods (8) and the plurality of longitudinal insertion rods (9), and the strong magnet (10) is fixedly installed on the outer wall of the connecting piece (7).

3. The spraying device for external treatment of the bottle body based on the production of glass bottles according to claim 1, wherein: The support assembly (4) includes a vertical rod (18) rotatably installed on the top surface of the workbench (2), a threaded section (19) arranged at the top end of the vertical rod (18), and a bearing block (20) detachably installed on the threaded section (19).

4. The spraying device for external treatment of the bottle body based on glass bottle production according to claim 3, characterized in that: The inner wall of the bearing block (20) is in threaded connection with the outer wall of the threaded section (19).

5. The spraying device for external treatment of the bottle body based on glass bottle production according to claim 3, wherein: The driving mechanism further includes a fixing frame (12) arranged at the bottom of the mounting bracket (6), a sliding hole (15) opened on the outer wall of the arc-shaped push plate (14) for installing the fixing frame (12), a through groove (13) opened on the rod wall of the fixing frame (12), a sleeve (17) sleeved on the rod wall of the vertical rod (18), and a pull rod (16) hinged to the bottom surface of the arc-shaped push plate (14). One end of the pull rod (16) far from the arc-shaped push plate (14) is rotatably connected to the outer wall of the sleeve (17); The driving mechanism further includes a positioning cylinder (21) threadedly installed on the outer wall of the threaded section (19).

6. The spraying device for external treatment of the bottle body based on glass bottle production according to claim 5, characterized in that: The driving mechanism further includes a lifting cylinder (11) sleeved on the outer wall of the arc-shaped push plate (14), and the inner wall of the lifting cylinder (11) is fixedly connected to the outer wall of the fixing frame (12); The driving mechanism further includes a tension spring (31) arranged on the inner wall of the lifting cylinder (11), and one end of the tension spring (31) far from the lifting cylinder (11) is fixedly connected to the outer wall of the arc-shaped push plate (14); The driving mechanism further includes a bracket (22) provided on the bottom surface of the lifting cylinder (11), and the bracket (22) can be lifted and lowered on the workbench (2).

7. The spraying device for external treatment of the bottle body based on glass bottle production according to claim 6, wherein: The driving mechanism further includes a roller (23) provided at the bottom end of the bracket (22), a slide rail (26) provided on the workbench (2), a wedge block (24) provided on the slide rail (26), and a pedal (25) provided on the outer wall of the wedge block (24), and the outer wall of the wedge block (24) is adapted to the outer wall of the roller (23).

8. The spraying device for external treatment of the bottle body based on glass bottle production according to claim 6, characterized in that: The separating mechanism includes a plurality of groups of separating spring pieces provided on the top of the lifting cylinder (11). Each group of separating spring pieces includes two separating spring pieces (29), and the tips of the two separating spring pieces (29) are in contact with each other to form an inverted V shape, and the tips of the separating spring pieces (29) are plated with a hardening layer; The separating mechanism further includes an inclined groove (30) formed on the side surface of the separating spring piece (29) close to the strong magnet (10).

9. The spraying device for external treatment of the bottle body based on glass bottle production according to claim 8, characterized in that: The separating mechanism further includes a mounting groove (27) formed on the top of the lifting cylinder (11) and an adjusting plate (28) provided inside the mounting groove (27), and one end of the adjusting plate (28) close to the separating spring piece (29) is fixedly connected to the bottom end of the separating spring piece (29).

10. A spraying method for external treatment of the bottle body in glass bottle production, using the spraying device for external treatment of the bottle body in glass bottle production described in claim 8, characterized in that, It includes the following steps: Step 1: The operator places the glass bottle to be sprayed on the bearing block (20) of the supporting assembly (4), controls the two arc-shaped push plates (14) to move closer to each other to push the hollowed-out shielding cloth (5) against the body of the glass bottle, causes the strong magnets (10) on the two mounting brackets (6) to attract each other, and finally the two mounting brackets (6) surround and fix the body of the glass bottle. The hollowed-out shielding cloth (5) shields the non-sprayed part of the glass bottle body, and the arc-shaped push plate (14) resets under the action of the tension spring (31); Step 2: The spray gun (3) sprays the hollowed-out area of the hollowed-out shielding cloth (5) to complete the partial spraying of the outer surface of the glass bottle body; Step 3: Lift the lifting cylinder (11) so that the tips of two adjacent separating spring pieces (29) are inserted between the attracted strong magnets (10). Then, the inclined surface of the separating spring piece (29) exerts a radial separating force on the strong magnet (10), and the two mounting brackets (6) are released from the surrounding state; Step 4: The two mounting brackets (6) reset under the action of gravity, the hollowed-out shielding cloth (5) detaches from the glass bottle body, and the glass bottle completes the partial spraying.

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