Code spraying mechanism of rubber ring code spraying and cutting equipment
By designing a coding mechanism with drive and drying functions, the problems of incomplete coding and fixed printhead angle were solved, enabling rapid drying and angle adjustment, improving coding accuracy and application range, and enhancing product quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI LANXIANG PLASTIC IND
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-21
AI Technical Summary
Existing inkjet printing mechanisms lack drying functions, resulting in inks that cannot dry quickly during the printing process, leading to smudging, smudging, or sticking, which affects the clarity and aesthetics of the printed code. The fixed printhead angle makes it difficult to adapt to irregularly shaped rubber rings or complex structures, limiting the scope of high-precision printing and its applications.
A rubber ring inkjet cutting device was designed, comprising a drive mechanism, a clamping mechanism, an adjustment mechanism, a drying mechanism, and an inkjet printing mechanism. The device achieves nozzle angle adjustment and expansion functions through a servo motor and a unidirectional rotation structure, and combines the drying mechanism to quickly dry and print rubber rings of different shapes and sizes.
It achieves rapid drying of inkjet printing, prevents unclear printing, can adapt to irregularly shaped rubber rings, improves printing accuracy and application range, and enhances product quality and production efficiency.
Smart Images
Figure CN224145624U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rubber ring technology, specifically the coding mechanism of rubber ring coding and cutting equipment. Background Technology
[0002] In the industrial production sector, the marking mechanism of rubber ring marking and cutting equipment is widely used for marking various rubber products. Traditional marking mechanisms are mainly used to print basic information such as production date, batch number, and specifications on the surface of rubber rings. However, existing marking mechanisms have many technical shortcomings and are unable to meet the increasingly diverse and sophisticated production needs.
[0003] On the one hand, existing inkjet printing machines generally lack drying functions. During the inkjet printing process, the ink cannot dry quickly after being printed onto the surface of the rubber ring. This causes the ink to easily rub off, smudge, or stick during subsequent transport, stacking, or cutting of the rubber ring. This not only affects the clarity and aesthetics of the inkjet printing but may also result in blurred and difficult-to-identify product information, reducing product quality and production efficiency. For example, in large-scale continuous production, stacking undried inkjet-printed rubber rings can cause a large number of products to become defective due to damaged markings, increasing the company's production costs.
[0004] On the other hand, the fixed nozzle angle of existing coding mechanisms cannot be flexibly adjusted according to the shape, size, and special coding requirements of the rubber ring. For irregularly shaped or complex rubber rings, the fixed-angle nozzle makes it difficult to achieve accurate coding, easily leading to problems such as misalignment, missed printing, or uneven coding. Furthermore, because the nozzle angle is not adjustable, coding mechanisms struggle to complete some high-precision and complex coding tasks, such as coding in confined spaces, multi-angle coding on curved surfaces, and advanced coding with special artistic effects or functions (such as microtext, dot matrix patterns, and anti-counterfeiting QR codes), significantly limiting the application scope and the enhancement of product added value.
[0005] Therefore, this utility model provides a coding mechanism for a rubber ring coding and cutting device. Utility Model Content
[0006] In order to overcome the shortcomings of the existing technology and solve at least one of the problems mentioned in the background technology, a coding mechanism for a rubber ring coding and cutting device is proposed.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The coding mechanism of the rubber ring coding and cutting equipment of this utility model includes a base plate; a fixed bracket is fixedly installed on one side of the top of the base plate, a driving mechanism is provided on one side of the fixed bracket, and a clamping mechanism is provided on the side of the fixed bracket away from the driving mechanism; an adjustment mechanism is provided on the side of the rotating disk away from the fixed bracket, and a moving mechanism is provided on the top of the base plate; a drying mechanism is provided on the top of the base plate, and a coding mechanism is provided on the top of the base plate; the driving mechanism includes a first servo motor, a drive shaft, and a unidirectional rotation structure, wherein the first servo motor... The first servo motor is fixedly installed on one side of the fixed bracket. The output end of the first servo motor is fixedly installed with the drive shaft. The unidirectional rotating structure is rotatably installed on the inner wall of the fixed bracket. The inner ring of the unidirectional rotating structure is fixedly installed with the drive shaft. The cooperation between the first servo motor and the drive shaft enables the unidirectional rotating structure to drive the drive shaft to rotate by rotating forward, thereby enabling the arc frame to rotate and the fixed rod to be opened. When the first servo motor is reversed, the unidirectional rotating structure can drive the drive shaft and the connecting ring to rotate synchronously, so that the support plate can be reversed. The unidirectional rotating structure uses the principle of ratchet and pawl to achieve this effect.
[0008] Preferably, the clamping mechanism includes a rotating disk, a connecting ring, a limiting rod, a sliding block, a fixed rod, and a support plate. The rotating disk is rotatably mounted on the side of the fixed bracket away from the first servo motor. The side of the rotating disk close to the fixed bracket is fixedly mounted to the connecting ring. The side of the connecting ring away from the rotating disk is fixedly mounted to the outer ring of the unidirectional rotating structure. Four sets of limiting rods are provided, and the four sets of limiting rods are fixedly mounted in a ring on the inner wall of the rotating disk away from the fixed bracket. The sliding block is slidably mounted on the surface of the limiting rod. One side of the sliding block is fixedly mounted to the fixed rod. The side of the fixed rod away from the sliding block is fixedly mounted to the support plate. In this scheme, the coordinated use of the rotating disk, connecting ring, limiting rod, and sliding block can achieve rotation through the drive of the unidirectional rotating structure and keep the fixed rod stable when sliding, so that it can only slide in a straight line, thereby achieving the opening effect. The coordinated use of the fixed rod and the support plate can achieve outward opening by sliding within the arc frame, thereby tightening the rubber ring and preventing it from wrinkling.
[0009] Preferably, the adjusting mechanism includes a drive shaft, a rotating block, and an arc-shaped frame. The drive shaft is fixedly installed at one end of the drive shaft near the unidirectional rotating structure, and the end of the drive shaft away from the unidirectional rotating structure is fixedly installed with the rotating block. Four sets of arc-shaped frames are provided, and the four sets of arc-shaped frames are fixedly installed in a ring on the surface of the rotating block. The four sets of fixed rods are located on the inner wall of the arc-shaped frames and are slidably installed with the arc-shaped frames. In this scheme, the coordinated use of the drive shaft, rotating block, and arc-shaped frame can always follow the rotation of the drive shaft, so that when rotating forward, it can drive the fixed rods to expand outward, and when rotating in reverse, it will retract, thereby driving the support plate to reset.
[0010] Preferably, the moving mechanism includes a second servo motor, a threaded rod, and a threaded block. The second servo motor is fixedly installed on one side of the base plate, and the threaded rod is rotatably installed on the inner wall of the top of the base plate. The surface of the threaded rod is threadedly installed with the threaded block. In this scheme, the combined use of the second servo motor, the threaded rod, and the threaded block can realize the function of automatically adjusting the position of the support ring, thereby enabling the position of the nozzle to be adjusted.
[0011] Preferably, the drying mechanism includes a support ring, a limiting baffle, a mounting plate, a fan blade, and a fan blade. The support ring is fixedly installed on the top of the threaded block. The two sides of the support ring are fixedly installed with the limiting baffle. The top of one end of the support ring is fixedly installed with the mounting plate. The outer side of the mounting plate away from the support ring is fixedly installed with the motor. The output end of the motor is fixedly installed with the fan blade. The fan blade is rotatably installed with the mounting plate. In this scheme, the coordinated use of the support ring, the limiting baffle, the mounting plate, the motor, and the fan blade can limit the rotation angle of the rotating ring and also dry the pigment in time when the inkjet is sprayed, preventing the writing from becoming blurred.
[0012] Preferably, the coding mechanism includes a rotating ring, a printhead, a storage tank, a shaft, a drive gear, a third servo motor, and a semi-ring gear. The rotating ring is rotatably mounted on the inner wall of the support ring body. The top of the inner wall of the rotating ring is fixedly mounted to the printhead. The top of the surface of the rotating ring is threadedly mounted to the storage tank. The storage tank is connected to the printhead. The shaft is fixedly mounted on the bottom of the inner wall of the support ring body. The inner wall of the shaft is rotatably mounted to the drive gear. One side of the shaft is fixedly mounted to the third servo motor. The output end of the third servo motor is fixedly mounted to the drive gear. The semi-ring gear is fixedly mounted on the lower half of the inner wall of the rotating ring. The drive gear meshes with the semi-ring gear. In this scheme, the coordinated use of the rotating ring, printhead, storage tank, shaft, drive gear, third servo motor, and semi-ring gear can achieve automated coding. At the same time, the printing angle of the printhead can be adjusted at any time by driving the drive gear to achieve a 180-degree rotation.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The coding mechanism of the rubber ring coding and cutting equipment of this utility model, through the arrangement of a first servo motor, a drive shaft and a one-way rotation structure, enables the first servo motor and the drive shaft to rotate in the forward direction, thereby enabling the one-way rotation structure to drive the transmission shaft to rotate, so that the arc frame can rotate and the fixed rod can be opened. When the first servo motor flips, the one-way rotation structure can drive the transmission shaft and the connecting ring to rotate synchronously, so that the support plate can flip. The one-way rotation structure utilizes the principle of ratchet and pawl to achieve this effect.
[0015] 2. The coding mechanism of the rubber ring coding and cutting equipment of this utility model, through the arrangement of a rotating disk, connecting ring, limiting round rod, sliding block, fixed small rod and support plate, enables the rotating disk, connecting ring, limiting round rod and sliding block to rotate through the drive of the unidirectional rotating structure, and keeps the fixed small rod stable when sliding, so that it can only slide in a straight line, thereby achieving the opening effect. The cooperation of the fixed small rod and the support plate can open outward by sliding within the arc frame, thereby tightening the rubber ring and preventing it from wrinkling. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a front perspective view of the present invention;
[0018] Figure 2 This is a partial exploded view of this utility model;
[0019] Figure 3 This is a partial structural diagram of the present invention;
[0020] Figure 4 yes Figure 3 Enlarged view of a portion of point A in the middle;
[0021] Figure 5 yes Figure 3 Enlarged view of section B in the middle.
[0022] Legend:
[0023] 1. Base plate; 2. Fixed bracket; 3. Drive mechanism; 31. First servo motor; 32. Drive shaft; 33. Unidirectional rotation structure; 4. Tightening mechanism; 41. Rotating disk; 42. Connecting ring; 43. Limiting rod; 44. Sliding block; 45. Fixed rod; 46. Support plate; 5. Adjustment mechanism; 51. Transmission shaft; 52. Rotating block; 53. Arc frame; 6. Moving mechanism; 61. Second servo motor; 62. Threaded rod; 63. Threaded block; 7. Drying mechanism; 71. Bracket ring; 72. Limiting baffle; 73. Mounting plate; 74. Motor; 75. Fan blade; 8. Inkjet mechanism; 81. Rotating ring; 82. Nozzle; 83. Storage tank; 84. Shaft frame; 85. Drive gear; 86. Third servo motor; 87. Semi-ring gear. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] Specific implementation examples are given below.
[0026] like Figures 1 to 5As shown, the coding mechanism of the rubber ring coding and cutting equipment described in this embodiment of the utility model includes a base plate 1; a fixed bracket 2 is fixedly installed on one side of the top of the base plate 1, a driving mechanism 3 is provided on one side of the fixed bracket 2, and a clamping mechanism 4 is provided on the side of the fixed bracket 2 away from the driving mechanism 3; an adjusting mechanism 5 is provided on the side of the rotating disk 41 away from the fixed bracket 2, and a moving mechanism 6 is provided on the top of the base plate 1; a drying mechanism 7 is provided on the top of the base plate 1, and a coding mechanism 8 is provided on the top of the base plate 1; the driving mechanism 3 includes a first servo motor 31, a drive shaft 32, and a one-way rotation structure 33. The first servo motor 31 is fixedly installed on one side of the fixed bracket 2, and the output end of the first servo motor 31 is fixedly installed with the drive shaft 32. The one-way rotation structure 33 is rotatably installed on the inner wall of the fixed bracket 2, and the inner ring of the one-way rotation structure 33 is fixedly installed with the drive shaft 32.The clamping mechanism 4 includes a rotating disk 41, a connecting ring 42, a limiting rod 43, a sliding block 44, a fixing rod 45, and a support plate 46. The rotating disk 41 is rotatably mounted on the side of the fixed bracket 2 away from the first servo motor 31. The side of the rotating disk 41 closest to the fixed bracket 2 is fixedly mounted to the connecting ring 42. The side of the connecting ring 42 away from the rotating disk 41 is fixedly mounted to the outer ring of the unidirectional rotating structure 33. Four sets of limiting rods 43 are provided, and the four sets of limiting rods 43 are fixedly mounted in a ring on the inner wall of the side of the rotating disk 41 away from the fixed bracket 2. The sliding block 44 is slidably mounted on the surface of the limiting rods 43. One side of the sliding block 44 is fixedly mounted to the fixing rod 45. The side of rod 45 away from sliding block 44 is fixedly installed with support plate 46. Adjustment mechanism 5 includes drive shaft 51, rotating block 52 and arc frame 53. Drive shaft 51 is fixedly installed at one end of drive shaft 32 near unidirectional rotation structure 33. The end of drive shaft 51 away from unidirectional rotation structure 33 is fixedly installed with rotating block 52. Four sets of arc frame 53 are provided. The four sets of arc frame 53 are fixedly installed in a ring on the surface of rotating block 52. Four sets of fixing rods 45 are located on the inner wall of arc frame 53 and are slidably installed with arc frame 53. Moving mechanism 6 includes second servo motor 61, threaded rod 62 and threaded block 63. Second servo motor 61 is fixedly installed on one side of base plate 1. The threaded rod 62 is rotatably mounted on the inner wall of the top of the base plate 1. The surface of the threaded rod 62 is threadedly mounted to the threaded block 63. The drying mechanism 7 includes a support ring 71, a limiting baffle 72, a mounting plate 73, a fan blade 75, and a fan blade 75. The support ring 71 is fixedly mounted on the top of the threaded block 63. Both sides of the support ring 71 are fixedly mounted to the limiting baffle 72. The top of one end of the support ring 71 is fixedly mounted to the mounting plate 73. The outer side of the mounting plate 73 away from the support ring 71 is fixedly mounted to the motor 74. The output end of the motor 74 is fixedly mounted to the fan blade 75. The fan blade 75 is rotatably mounted to the mounting plate 73. The coding mechanism 8 includes a rotating ring 81, a nozzle 82, and a storage tank 83. The system comprises a shaft bracket 84, a drive gear 85, a third servo motor 86, and a semi-ring gear 87. A rotating ring 81 is rotatably mounted on the inner wall of the support ring body 71. The top of the inner wall of the rotating ring 81 is fixedly mounted to the nozzle 82. The top surface of the rotating ring 81 is threadedly mounted to the storage tank 83, which is connected to the nozzle 82. The shaft bracket 84 is fixedly mounted on the bottom of the inner wall of the support ring body 71. The inner wall of the shaft bracket 84 is rotatably mounted to the drive gear 85. One side of the shaft bracket 84 is fixedly mounted to the third servo motor 86. The output end of the third servo motor 86 is fixedly mounted to the drive gear 85. The semi-ring gear 87 is fixedly mounted on the lower half of the inner wall of the rotating ring 81, and the drive gear 85 meshes with the semi-ring gear 87.
[0027] like Figures 1 to 5As shown, the cooperation of the first servo motor 31 and the drive shaft 32 enables the unidirectional rotating structure 33 to drive the transmission shaft 51 to rotate through forward rotation, thereby allowing the arc frame 53 to rotate and the fixed rod 45 to be opened. When the first servo motor 31 flips, the unidirectional rotating structure 33 can drive the transmission shaft 51 and the connecting ring 42 to rotate synchronously, allowing the support plate 46 to flip. The unidirectional rotating structure 33 utilizes the principle of ratchet and pawl to achieve this effect. The cooperation of the rotating disk 41, the connecting ring 42, the limiting round rod 43, and the sliding block 44 enables the unidirectional rotating structure 33 to drive rotation and keep the fixed rod 45 stable when sliding, so that it can only slide in a straight line, thereby achieving the opening effect. The cooperation of the fixed rod 45 and the support plate 46 enables outward expansion through sliding within the arc frame 53, thereby tightening the rubber ring and preventing it from wrinkling. The transmission shaft 51, the rotating block 52, and The use of the arc-shaped frame 53 allows it to rotate with the drive shaft 32, enabling it to drive the fixed rod 45 to expand outwards when rotating forward and retract when rotating backwards, thus resetting the drive support plate 46. The use of the second servo motor 61, threaded rod 62, and threaded block 63 enables automatic adjustment of the position of the support ring 71, thereby allowing the position of the nozzle 82 to be adjusted. The use of the support ring 71, limit baffle 72, mounting plate 73, motor 74, and fan blade 75 limits the rotation angle of the rotating ring 81 and dries the ink in time when the nozzle 82 is printing, preventing the characters from becoming blurred. The use of the rotating ring 81, nozzle 82, storage tank 83, shaft frame 84, drive gear 85, third servo motor 86, and semi-ring gear 87 enables automated printing and allows the nozzle 82 to rotate 180 degrees through the drive gear 85, allowing the printing angle of the nozzle 82 to be adjusted at any time.
[0028] Working principle: During operation, the base plate 1 is first placed on a flat surface, and then the rubber sleeve is placed on the surface of the support plate 46. The user then starts the first servo motor 31, which drives the drive shaft 32 and the unidirectional rotating structure 33 to rotate forward. When the unidirectional rotating structure 33 rotates forward, it only drives the transmission shaft 51 to rotate. The rotation of the transmission shaft 51 drives the rotating block 52 and the arc-shaped frame 53 to rotate. When the arc-shaped frame 53 rotates, the fixing rods 45 slide on the inner wall of the arc-shaped frame 53. As the fixing rods 45 continue to slide, the four sets of fixing rods... 45 will cause the sliding block 44 to slide on the surface of the limiting rod 43, thereby enabling the four sets of support plates 46 to move outward simultaneously and tighten the rubber ring. Then, the user can start the nozzle 82 to print on the surface of the rubber ring. During the printing process, the user can start the second servo motor 61 to drive the threaded rod 62 to rotate, so that the threaded block 63 and the bracket ring 71 can be angled, so that the printing angle of the nozzle 82 can follow the movement. When it is necessary to print on the back of the rubber sleeve, the user only needs to start the first servo motor while the support plate 46 is tightened. The motor 31 reverses the drive shaft 32 and the one-way rotating structure 33. When the one-way rotating structure 33 reverses, it simultaneously drives the transmission shaft 51 and the connecting ring 42 to rotate. The rotation of the connecting ring 42 drives the rotating disk 41 to rotate. The rotating disk 41, in turn, drives the support plate 46 to flip, allowing the printhead 82 to print on the back of the rubber sleeve. Simultaneously, during the printing process, the user can activate the motor 74 to drive the fan blades 75 to rotate, generating airflow that blows onto the rubber sleeve to dry the ink. When adjustments are needed... When adjusting the printing angle of the nozzle 82 or when it is necessary to print irregular shapes with the nozzle 82, the user can start the third servo motor 86 to drive the drive gear 85 to rotate. When the drive gear 85 rotates, it can drive the rotating ring 81 to rotate through the semi-ring gear 87. The rotation of the rotating ring 81 will allow the spraying angle of the nozzle 82 to be changed at will, thereby enabling the printing of more detailed codes. When the rotating ring 81 rotates, the limit baffle 72 can limit the range of motion of the storage tank 83, so that the nozzle 82 can print codes within the specified range of motion.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. Ink-jet code cutting device's ink-jet code mechanism, including bottom plate (1);Its characterized in being: A fixed bracket (2) is fixedly installed on one side of the top of the base plate (1), a driving mechanism (3) is provided on one side of the fixed bracket (2), and a clamping mechanism (4) is provided on the side of the fixed bracket (2) away from the driving mechanism (3). The drive mechanism (3) includes a first servo motor (31), a drive shaft (32) and a one-way rotation structure (33). The first servo motor (31) is fixedly installed on one side of the fixed bracket (2). The output end of the first servo motor (31) is fixedly installed with the drive shaft (32). The one-way rotation structure (33) is rotatably installed on the inner wall of the fixed bracket (2). The inner ring of the one-way rotation structure (33) is fixedly installed with the drive shaft (32). The clamping mechanism (4) includes a rotating disk (41), a connecting ring (42), a limiting rod (43), a sliding block (44), a fixing rod (45), and a support plate (46). The rotating disk (41) is rotatably mounted on the side of the fixed bracket (2) away from the first servo motor (31). The side of the rotating disk (41) close to the fixed bracket (2) is fixedly mounted with the connecting ring (42). The side of the connecting ring (42) away from the rotating disk (41) is fixedly mounted with the outer ring of the unidirectional rotating structure (33). There are four sets of limiting rods (43). The four sets of limiting rods (43) are fixedly mounted in a ring on the inner wall of the side of the rotating disk (41) away from the fixed bracket (2). The sliding block (44) is slidably mounted on the surface of the limiting rod (43). One side of the sliding block (44) is fixedly mounted with the fixing rod (45). The side of the fixing rod (45) away from the sliding block (44) is fixedly mounted with the support plate (46).
2. The ink-jet code cutting apparatus of claim 1, wherein: An adjustment mechanism (5) is provided on the side of the rotating disk (41) away from the fixed bracket (2), and a moving mechanism (6) is provided on the top of the base plate (1).
3. The ink-jet code cutting apparatus of claim 2, wherein: A drying mechanism (7) is provided on the top of the base plate (1), and a coding mechanism (8) is provided on the top of the base plate (1).
4. The ink-jet code cutting apparatus of claim 3, wherein: The adjustment mechanism (5) includes a drive shaft (51), a rotating block (52), and an arc frame (53). The drive shaft (51) is fixedly installed at one end of the drive shaft (32) near the unidirectional rotating structure (33). The end of the drive shaft (51) away from the unidirectional rotating structure (33) is fixedly installed with the rotating block (52). There are four sets of arc frames (53). The four sets of arc frames (53) are fixedly installed in a ring on the surface of the rotating block (52). The four sets of fixing rods (45) are located on the inner wall of the arc frame (53) and are slidably installed with the arc frame (53).
5. The ink-jet code cutting apparatus of claim 4, wherein: The moving mechanism (6) includes a second servo motor (61), a threaded rod (62) and a threaded block (63). The second servo motor (61) is fixedly installed on one side of the base plate (1). The threaded rod (62) is rotatably installed on the inner wall of the top of the base plate (1). The surface of the threaded rod (62) is threadedly installed with the threaded block (63).
6. The ink-jet code cutting apparatus of claim 5, wherein: The drying mechanism (7) includes a support ring (71), a limiting baffle (72), a mounting plate (73), a fan blade (75), and a fan blade (75). The support ring (71) is fixedly installed on the top of the threaded block (63). The two sides of the support ring (71) are fixedly installed with the limiting baffle (72). The top of one end of the support ring (71) is fixedly installed with the mounting plate (73). The outer side of the mounting plate (73) away from the support ring (71) is fixedly installed with the motor (74). The output end of the motor (74) is fixedly installed with the fan blade (75). The fan blade (75) is rotatably installed with the mounting plate (73).
7. The coding mechanism of the rubber ring coding and cutting equipment according to claim 6, characterized in that: The coding mechanism (8) includes a rotating ring (81), a printhead (82), a storage tank (83), a shaft frame (84), a drive gear (85), a third servo motor (86), and a semi-ring gear (87). The rotating ring (81) is rotatably mounted on the inner wall of the support ring body (71). The top of the inner wall of the rotating ring (81) is fixedly mounted to the printhead (82). The top of the surface of the rotating ring (81) is threadedly mounted to the storage tank (83). The storage tank (83) is connected to the printhead (84). 2) Connected, the shaft frame (84) is fixedly installed at the bottom of the inner wall of the bracket ring (71), the inner wall of the shaft frame (84) is rotatably installed with the drive tooth (85), one side of the shaft frame (84) is fixedly installed with the third servo motor (86), the output end of the third servo motor (86) is fixedly installed with the drive tooth (85), the half ring tooth (87) is fixedly installed on the lower half ring of the inner wall of the rotating ring (81), and the drive tooth (85) meshes with the half ring tooth (87).