Linear printing device and cosmetic bottle surface treatment process

Abstract

The invention relates to a linear printing device and a cosmetic bottle surface treatment process. The linear printing device comprises a main body, a safety mark mechanism, a visual detection rotating position adjusting mechanism and a silk-screen printing mechanism. A conveying line is mounted on the main body and is used for conveying bottles; the label installing mechanism, the visual detection rotating position adjusting mechanism and the silk-screen printing mechanism are sequentially arranged on the main body in the length direction of the conveying line. The mark installing mechanism is used for temporarily installing set marks on the peripheral sides of the bottles without the patterns; the visual detection rotating position adjusting mechanism is used for rotating the bottle and stopping rotating the bottle after the marker on the peripheral side of the bottle is detected; the silk-screen printing mechanism is used for printing patterns on the peripheral sides of the bottles. According to the cosmetic bottle printing device, secondary covering printing operation can be accurately conducted on cosmetic bottles without printing patterns, the problem that the cosmetic bottles are scrapped due to the fact that batch printing products are poor in the printing process is solved, and the production cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of printing technology, and in particular to a linear printing device and a cosmetic bottle surface treatment process. Background Art

[0002] Printing is a comprehensive process that integrates chemical, physical and mechanical technologies. Its core is to make dyes or coatings into color pastes and apply them accurately to the surface of textiles or other objects to form patterns. In the field of cosmetic bottle manufacturing, printing machines have become the main tool for pattern printing, usually including a main structure, a screen printing station and a curing station. A conveyor line is installed on the main structure. Driven by the conveyor line, the cosmetic bottles pass through the screen printing station. Through the cooperation of the screen and the scraper, as well as the rotation of the cosmetic bottles themselves, the patterns on the sides of the bottles are printed, and then enter the curing station for curing of the patterns.

[0003] However, there are often challenges in the batch printing process of cosmetic bottles. For example, the ink in the screen printing station may clog some mesh holes after drying, or the scraper pressure may be insufficient, which may cause the printed pattern on the side of the cosmetic bottle to be partially missing. If such problems are not discovered in time on the production line, it will cause the problem of missing patterns on a large number of cosmetic bottles, which not only increases the time and labor cost of subsequent remediation, but also makes it difficult to clean the pattern after curing, resulting in batch scrapping of cosmetic bottles, thereby increasing production costs. Summary of the invention

[0004] In order to improve the problem of cosmetic bottles being scrapped due to batch defective printed products during the printing process and reduce production costs, the present application provides a linear printing device and a cosmetic bottle surface treatment process.

[0005] In the first aspect, the linear printing device provided in the present application adopts the following technical solution: A linear printing device comprises a main body, a label installation mechanism, a visual detection rotation adjustment mechanism and a screen printing mechanism; a conveyor line is installed on the main body, and the conveyor line is used to transport bottles; the label installation mechanism, the visual detection rotation adjustment mechanism and the screen printing mechanism are arranged on the main body in sequence along the length direction of the conveyor line; the label installation mechanism is used to temporarily install a set mark on the circumference of the bottle where the pattern is missing; the label installation mechanism comprises a mark storage area, a conveying part, a rotation imaging detection part and a label installation manipulator; the mark storage area stores a marker; the conveying part is connected to the mark storage area, and the conveying part is used to convey the marker to the activity range of the label installation manipulator; the rotation imaging detection part is used to rotate and detect a set pattern area, and after detecting the set pattern area, rotate the bottle to a set angle and then stop; the label installation manipulator is used to install the marker on the circumference of the bottle; the visual detection rotation adjustment mechanism is used to rotate the bottle, and stop rotating the bottle after detecting the marker on the circumference of the bottle; the screen printing mechanism is used to print a pattern on the circumference of the bottle.

[0006] By adopting the above technical solution, the label installation mechanism is used to identify the missing pattern on the side of the bottle where the pattern printing is missing, and temporarily install the marker at the corresponding position on the side of the bottle to confirm the secondary printing coverage position. With the visual detection rotation adjustment mechanism, the relative position of the bottle on the conveyor line is rotated so that the marker is in the correct relative position relative to the conveyor line, so as to reduce the risk of secondary printing misalignment due to the deflection of the bottle during the transportation of the bottle by the conveyor line. Then the screen printing mechanism can be used to complete the secondary coverage printing on the side of the bottle. After the secondary printing is completed, the marker on the side of the bottle can be removed, and the bottle with missing pattern printing can be circulated normally, so as to complete the secondary precise coverage printing operation on the side of the cosmetic bottle, improve the problem of batch printing products being defective and scrapped during the printing process of cosmetic bottles, and reduce production costs.

[0007] Optionally, the marker includes a suction cup and a marking head mounted on the suction cup, and the marking head is used for being grasped by the safety mark robot and for being identified and detected by the visual detection rotation adjustment mechanism.

[0008] By adopting the above technical solution, the marker is adsorbed on the side of the bottle body through the suction cup. After the marker on the side of the bottle body is subsequently removed, the marker can be reused, thereby reducing the use cost of the marker.

[0009] Optionally, a plurality of flanges are provided on the edge of the suction cup, and the plurality of flanges are arranged at intervals along the circumference of the suction cup.

[0010] By adopting the above technical solution, when removing the suction cup around the bottle body, the negative pressure environment of the suction cup at a certain place on the bottle body can be destroyed by lifting the flange, so that the marker can be easily peeled off the bottle body, reducing the time for removing the marker from the side of the bottle body, thereby saving time cost and further controlling production cost.

[0011] Optionally, the marking storage area includes a material box and multiple material trays; the relative inner walls of the material box are provided with multiple slots, and the multiple slots are arranged at intervals along the height direction of the material box, and the material trays are inserted into the slots, and the multiple material trays correspond to the multiple slots one by one; the material tray is provided with multiple placement grooves, and the placement grooves are used to accommodate the markers; the conveying part is used to convey the multiple material trays in turn through the activity range of the marking robot.

[0012] By adopting the above technical solution, the combination of the material box and the material tray can realize the transfer and placement of multiple markers. With the conveying part, not only can the multiple markers be conveyed to the range of the marking robot in an orderly manner, but the recovered markers can also be quickly placed in the designated position through the material tray, achieving the effect of marker recovery and utilization.

[0013] Optionally, the material tray is provided with a plurality of protrusions at the bottom of the placement groove, and the plurality of protrusions are arranged at intervals, and the protrusions are provided for the suction cup to abut.

[0014] By adopting the above technical solution, the convex points are used to destroy the flatness of the bottom of the placement groove, thereby reducing the risk of the suction cup being adsorbed on the material tray, and improving the problem that it is difficult for the safety mark robot to grasp the marker adsorbed on the material tray.

[0015] Optionally, the conveyor line includes a first conveying section, a swing lifting section and a second conveying section, the label installation mechanism and the visual detection rotation adjustment mechanism are both installed on one side of the main body located at the first conveying section, and the visual detection rotation adjustment mechanism is located at one end of the first conveying section close to the swing lifting section; the swing lifting section is located below the screen printing mechanism, and the swing lifting section is used to lift the bottle of the visual detection rotation adjustment mechanism to the place where the screen printing mechanism prints the pattern, and convey the bottle with the pattern printed to the second conveying section.

[0016] By adopting the above technical solution, the conveying line is split into three conveying structures, so that the conveying of bottles at the screen printing mechanism can be independent of the first conveying part and the second conveying part, and the visual detection rotation adjustment mechanism is located at one end of the first conveying part close to the swing lifting part, so that after the visual detection rotation adjustment mechanism detects and identifies the markers on the bottle body and determines the rotation position of the bottle body, it can directly enter the secondary printing around the bottle body through the swing lifting part, thereby improving the problem of bottle rotation and printing position deviation caused by multiple transmissions.

[0017] Optionally, an electromagnet is provided on the swing lifting part; the electromagnet is used to attract the marker to force the bottle to rotate to a specified position on the swing lifting part.

[0018] By adopting the above technical solution, the bottle on the swing lifting part is rotated by turning on and off the electromagnet, which further reduces the risk of printing position deviation caused by bottle rotation during transportation, thereby further improving the accuracy of secondary overprinting.

[0019] Optionally, a sliding sheet is detachably connected to the swing lifting part, and the sliding sheet is used to reduce the friction between the bottle and the swing lifting part.

[0020] By adopting the above technical solution, on the one hand, the friction between the bottle and the swing lifting part is reduced, and the problem of small rotation amplitude of the bottle after the electromagnet is energized is improved; on the other hand, the detachable connection between the sliding plate and the swing lifting part facilitates the subsequent replacement of the sliding plate, so that the friction between the bottle and the swing lifting part is in an optimal state.

[0021] Optionally, the label installation robot is used to install multiple markers on the circumference of the bottle, and the multiple markers are arranged at intervals along the axial direction of the bottle.

[0022] By adopting the above technical solution, multiple markers on the side of the bottle body can be connected into a boundary line on the identification and detection interface, which is convenient for further accurate determination of the rotation angle of the bottle. In addition, by using the principle of two points forming a line, when at least two markers remain on the side of the bottle body, the boundary line of the markers on the bottle body can continue to be identified, and the number of markers can be used to compensate for the problem that some markers fall off during the bottle transportation process and the rotation angle of the bottle cannot be accurately defined.

[0023] In the second aspect, the cosmetic bottle surface treatment process provided by the present application adopts the following technical solution: A cosmetic bottle surface treatment process, using the above-mentioned linear printing device, includes the following steps: S1: placing a sample bottle with missing printed patterns on the screen printing mechanism, repeatedly performing printing and pattern clearing operations on the sample bottle to determine the position of the sample bottle covered by the secondary printed pattern of the screen printing mechanism, and marking and drawing lines at the corresponding positions of the bottle body and the screen printing mechanism; S2: placing the sample bottle at the position of the rotating imaging detection unit, starting the rotating imaging detection unit, rotating and scanning the bottle body; determining the obvious part of the bottle body where the printed pattern is not missing, and marking it as the set pattern area; S3: Identify and mark the marking line on the test sample bottle, determine the installation position of the marking object on the side of the bottle by the label installation robot, record the rotation angle of the bottle after the rotation imaging detection unit detects the set pattern area, and save it as the set angle; S4: placing the sample bottle with the marker on the visual detection rotation adjustment mechanism, starting the visual detection rotation adjustment mechanism, rotating and scanning the bottle, identifying and recording the marker; and setting the visual detection rotation adjustment mechanism to immediately stop or delay the rotation of the bottle after detecting the marker; S5: placing a batch of bottles with missing printed patterns on the conveyor line, so that the bottles are sequentially subjected to the marker installation of the label installation mechanism, the position calibration of the visual detection rotation adjustment mechanism, and the secondary overprinting of the screen printing mechanism; S6: Peel off the markings on the sides of the bottle.

[0024] By adopting the above technical solution, using sample bottles, the position of the secondary printing of the screen printing mechanism on the side of the bottle body and the installation position of the marker are determined. The various adjustment parameters of the sample bottle by the label installation mechanism and the visual detection rotation adjustment mechanism are recorded and saved, that is, the set pattern area, set angle and marker. The secondary covering printing operation can be performed on the side of the cosmetic bottles where the batch printing pattern is missing. In addition, if it is found that there is still a printing offset on the side of the sample bottle body that has been subjected to the secondary covering printing operation, the rotation of the bottle body can be delayed to stop, so as to utilize the residual deflection angle of the bottle body to compensate for the rotation angle of the printing position offset caused by the rotation of the bottle body when the visual detection rotation adjustment mechanism is transported to the screen printing mechanism.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: The marking device is used to identify the missing pattern on the side of the bottle where the pattern printing is missing and temporarily install a marker at the corresponding position on the side of the bottle to confirm the secondary printing coverage position. The visual detection rotation adjustment mechanism is used to rotate the relative position of the bottle on the conveyor line so that the marker is in the correct relative position relative to the conveyor line to reduce the risk of secondary printing misalignment due to the deflection of the bottle during the conveyor line transportation process. After the secondary printing is completed, the marker on the side of the bottle is removed, and the bottle with missing pattern printing can be circulated normally, thereby improving the problem of batch printing products being scrapped during the printing process of cosmetic bottles and reducing production costs; By turning the electromagnet on and off and using the marker attracted by the electromagnet, the bottle under the screen printing mechanism is rotated, further reducing the risk of the printing position being offset due to the rotation of the bottle during the transmission process, thereby further improving the accuracy of the secondary overprinting; The arrangement of multiple markers around the bottle body enables the multiple markers to be connected into a boundary line on the identification and detection interface, which is convenient for further precise determination of the rotation angle of the bottle. Furthermore, by utilizing the principle of two points forming a line, when at least two markers remain around the bottle body, the marker boundary line of the bottle body can continue to be identified. The number of markers can be utilized to compensate for the problem that some markers fall off during the bottle conveyance process and the rotation angle of the bottle cannot be precisely defined. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Figure 2 It is a structural schematic diagram for showing the first horizontal pressing component and the screen printing mechanism.

[0028] Figure 3 yes Figure 2 Enlarged view of part A.

[0029] Figure 4 It is a schematic diagram used to display the structure of the safety standard organization.

[0030] Figure 5 yes Figure 4 Enlarged view of part B.

[0031] Figure 6 It is a schematic diagram showing the structure of the material box and the marker.

[0032] Figure 7 It is a schematic diagram for showing the position of the top outlet and the protrusion on the material box.

[0033] Figure 8 It is a structural diagram used to show the rotation adjustment mechanism of visual detection.

[0034] Fig. 9 It is a schematic diagram used to show the structure of the safety standard robot.

[0035] Description of reference numerals: Main body; 11. baffle; 12. detection sensor; Safety mark mechanism; 21. Mark storage area; 211. Material box; 2111. Box mouth; 2112. Ejection outlet; 2113. Bump; 2114. Fixed groove; 2115. Slot; 212. Material tray; 2121. Placement groove; 2122. Bump; 22. Conveying part; 221. First screw rod lifting assembly; 222. Second screw rod lifting assembly; 223. Ejection cylinder; 224. Material track; 225. Belt conveying assembly; 23. Rotary imaging detection part; 231. Servo motor; 232. Disc; 233. Visual detection assembly; 24. Safety mark manipulator; 241. First motor; 242. Rotating rod; 243. Second motor; 244. Telescopic cylinder; 245. Air block; 246. Negative pressure suction cup; Visual inspection of the rotation adjustment mechanism; Screen printing mechanism; 41. horizontal reciprocating assembly; 42. screen; 43. abutting cylinder; 44. scraper; Conveyor line; 51, power output unit; 52, first conveyor unit; 521, front tooth plate; 522, rear tooth plate; 523, first horizontal pressing assembly; 5231, mounting plate; 52311, movable hole; 5232, pressing rod; 5233, return spring; 5234, rotating plate; 524, tooth groove; 53, swing lifting unit; 531, connecting rod; 532, first placement slot; 5321, groove; 533, second placement slot; 54, second conveyor unit; Second horizontal pressing assembly; 61, mounting seat; 62, movable cylinder; 63, compression spring; 64, end cover; Marker; 71, suction cup; 72, marking head; 73, flange; Electromagnet; 9. Sliding sheet. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-9 This application is described in further detail.

[0037] The embodiment of the present application discloses a linear printing device, which is designed to accurately perform a secondary cover printing operation on cosmetic bottles with missing printed patterns, improve the problem of batches of printed products being defective and scrapped during the printing process, and reduce production costs.

[0038] Reference Figure 1A linear printing device includes a main body 1, a label installation mechanism 2, a visual detection rotation adjustment mechanism 3 and a screen printing mechanism 4. A conveyor line 5 is installed on the main body 1, and the conveyor line 5 is used to transport bottles. The label installation mechanism 2, the visual detection rotation adjustment mechanism 3 and the screen printing mechanism 4 are sequentially arranged on the main body 1 along the length direction of the conveyor line 5. The label installation mechanism 2 is used to temporarily install a set mark on the side of the bottle where the pattern is missing. The visual detection rotation adjustment mechanism 3 is used to rotate the bottle and stop rotating the bottle after detecting a marker 7 on the side of the bottle. The screen printing mechanism 4 is used to print a pattern on the side of the bottle.

[0039] Reference Figure 1 Specifically, the conveyor line 5 includes a power output part 51, a first conveyor part 52, a swing lifting part 53 and a second conveyor part 54, and the first conveyor part 52, the swing lifting part 53 and the second conveyor part 54 are all connected to the power output part 51. When the power output part 51 is started, the power output part 51 drives the first conveyor part 52, the swing lifting part 53 and the second conveyor part 54 to move in a semicircular trajectory. It can be understood that the two end points of the semicircular motion trajectory are the horizontal moving distances of the bottles.

[0040] Reference Figure 1 In the embodiment of the present application, the power output part 51 is configured as a crank rocker mechanism installed on the main body 1. Since the crank rocker mechanism is a common component in the field of mechanical manufacturing, the present application will not repeat it. The first conveying part 52 and the second conveying part 54 have the same structure. The present application takes the first conveying part 52 as an example, and the second conveying part 54 can be obtained in the same way. The swing lifting part 53 is located directly below the screen printing mechanism 4.

[0041] Reference Figure 1 and Figure 2 The first conveying part 52 includes a front tooth plate 521, a rear tooth plate 522 and a first horizontal pressing assembly 523. The front tooth plate 521 and the rear tooth plate 522 are both fixed on the power output part 51, and the first horizontal pressing assembly 523 is fixed on the main body 1. A gap is left between the front tooth plate 521 and the rear tooth plate 522. A plurality of tooth grooves 524 are provided on the front tooth plate 521 and the rear tooth plate 522. The difference is that the tooth grooves 524 of the front tooth plate 521 are shallow, while the tooth grooves 524 of the rear tooth plate 522 are deep. The plurality of tooth grooves 524 are arranged at intervals along the length direction of the conveying line 5. The tooth grooves 524 of the front tooth plate 521 are used for abutting the bottle mouth of the cosmetic bottle, and the tooth grooves 524 of the rear tooth plate 522 are used for abutting the bottle bottom of the cosmetic bottle. The marking mechanism 2 and the visual detection rotation adjustment mechanism 3 are both installed on one side of the main body 1 located at the first conveying part 52 , and the visual detection rotation adjustment mechanism 3 is located at one end of the first conveying part 52 close to the swing lifting part 53 .

[0042] Reference Figure 2The first horizontal pressing assembly 523 includes a mounting plate 5231 slidably connected to the main body 1, a plurality of pressing rods 5232 slidably connected to the mounting plate, and a return spring 5233 sleeved on the circumference of the pressing rods 5232. The mounting plate 5231 is connected to a cylinder, and the cylinder drives the mounting plate 5231 to approach or move away from the front tooth plate 521. The plate surface of the mounting plate 5231 is provided with a plurality of movable holes 52311, and the plurality of movable holes 52311 correspond to the plurality of pressing rods 5232, and the movable holes 52311 are provided for the pressing rods 5232 to slide through. The plurality of pressing rods 5232 correspond to the plurality of tooth grooves 524. The end of the pressing rod 5232 is rotatably connected with a rotating piece 5234, and the rotating piece 5234 is provided for the bottle mouth of the cosmetic bottle to abut. The two ends of the compression spring 63 abut on the mounting plate 5231 and the rotating piece 5234 respectively. A blocking piece 11 is fixed to one side of the main body 1 located at the rear tooth plate 522 , and the blocking piece 11 is used for abutting against the bottom of the cosmetic bottle.

[0043] Reference Figure 2 and Figure 3 The swing lifting part 53 includes a connecting rod 531 rotatably connected to the power output part 51, a first placement slot 532 fixedly connected to the connecting rod 531, and a second placement slot 533 fixedly connected to the connecting rod 531. The connection structure between the connecting rod 531 and the power output part 51 is a crank rocker mechanism. The main body 1 is fixed with a second horizontal pressing assembly 6 for conveying the swing lifting part 53 to the cosmetic bottle at the screen printing mechanism 4. The first placement slot 532 corresponds to the first conveying part 52, and the second placement slot 533 corresponds to the second conveying part 54. The side walls of the first placement slot 532 that are away from each other are respectively provided with grooves 5321 for placing the bottle mouth and the bottle bottom of the cosmetic bottle. Similarly, the second placement slot 533 is also provided with a groove 5321 at the same position. When the power output part 51 drives the first conveying part 52 and the second conveying part 54 to move in a semicircular trajectory, the first placement slot 532 and the second placement slot 533 move in an elliptical trajectory through the connecting rod 531.

[0044] Reference Figure 2 and Figure 3 It can be understood that when the power output unit 51 drives the first conveying unit 52 and the second conveying unit 54 to move in a semicircular trajectory, the first placement slot 532 receives the cosmetic bottles flowing from the first conveying unit 52 and lifts them to the printing position of the screen printing mechanism 4, and the second horizontal pressing assembly 6 presses the cosmetic bottles at the printing position. The second placement slot 533 receives the cosmetic bottles at the printing position, the second horizontal pressing assembly 6 releases the cosmetic bottles, and the second placement slot 533 places the cosmetic bottles on the second conveying unit 54. That is, when the power output unit 51 drives the first conveying unit 52 and the second conveying unit 54 to move in a semicircular trajectory, the crank rocker mechanism between the connecting rod 531 and the power output unit 51 drives the first placement slot 532 and the second placement slot 533 to move in an elliptical trajectory.

[0045] Reference Figure 3 The second horizontal pressing assembly 6 includes a mounting seat 61 fixed on the main body 1, a movable cylinder 62 fixed on the mounting seat 61, a compression spring 63 sleeved on the output shaft of the movable cylinder 62, and an end cover 64 rotatably connected to the end of the output shaft of the movable cylinder 62. The two ends of the compression spring 63 abut against the movable cylinder 62 and the end cover 64 respectively. The end cover 64 is used for abutting against the mouth of the cosmetic bottle. An abutting piece (not shown in the figure) is rotatably connected to the main body 1, and the abutting piece is used for abutting against the bottom of the cosmetic bottle located at the position of the screen printing mechanism 4.

[0046] Reference Figure 1 , Figure 2 and Figure 3 The principle of the conveyor line 5 is as follows: when the conveyor line 5 is started, the power output unit 51 drives the first conveyor unit 52 and the second conveyor unit 54 to move in a semicircular trajectory, and drives the swing lifting unit 53 to move in an elliptical trajectory. When the bottle is located at the two end positions of the semicircular motion trajectory, the cylinder connected to the mounting plate 5231 and the movable cylinder 62 are ventilated, the pressing rod 5232 approaches and presses the cosmetic bottle against the baffle 11, the return spring 5233 and the compression spring 63 are compressed, and the movable cylinder 62 presses the cosmetic bottle against the contact sheet, and the screen printing mechanism 4 is started to print the pattern around the cosmetic bottle. Then the first conveyor unit 52 and the second conveyor unit 54 move along the semicircular arc, the cylinder connected to the mounting plate 5231 and the movable cylinder 62 are de-energized, and the cosmetic bottle falls into the next tooth groove 524 of the front tooth plate 521 and the rear tooth plate 522, and the cosmetic bottle moves horizontally. The swing lifting part 53 moves along an elliptical arc, and the first placement trough 532 receives the cosmetic bottles from the first conveying part 52 and lifts them to the printing position of the screen printing mechanism 4. The second placement trough 533 receives the cosmetic bottles at the printing position and places the cosmetic bottles on the second conveying part 54, so that the cosmetic bottles can be transported before and after printing.

[0047] Reference Figure 4 and Figure 5 The safety label mechanism 2 includes a label storage area 21, a conveying part 22, a rotation imaging detection part 23 and a safety label manipulator 24, wherein the label storage area 21 stores a label 7, and the conveying part 22 is connected to the label storage area 21, and the conveying part 22 is used to transport the label 7 to the range of movement of the safety label manipulator 24. The rotation imaging detection part 23 is used to rotate and detect the set pattern area, and after detecting the set pattern area, the bottle is rotated to a set angle and then stopped. The safety label manipulator 24 is used to install multiple markers 7 on the peripheral side of the bottle, and the multiple markers 7 are arranged and arranged at intervals along the axial direction of the bottle.

[0048] Reference Figure 4 , Figure 6 and Figure 7Specifically, the marking storage area 21 includes a material box 211 and a plurality of material trays 212, that is, one material box 211 is used to place a plurality of material trays 212, and the marking storage area 21 can place a plurality of material boxes 211. A box opening 2111 for the material tray 212 to enter is provided at one end of the material box 211, and a top outlet 2112 is provided at the other end, and the top outlet 2112 is extended along the height direction of the material box 211. The top outlet 2112 restricts the passage of the material tray 212 and allows the structure of the conveying part 22 to pass through. The outer top wall and the outer bottom wall of the material box 211 are respectively provided with a protrusion 2113 and a fixing groove 2114, and the fixing groove 2114 is plugged into the protrusion 2113, so as to reduce the risk of the plurality of material boxes 211 tipping over when the plurality of material boxes 211 are stacked. The opposite inner wall of the material box 211 is provided with a plurality of slots 2115, which are arranged at intervals along the height direction of the material box 211, and the slots 2115 are provided for the material trays 212 to be inserted, and the plurality of material trays 212 correspond to the plurality of slots 2115 one by one. The material tray 212 is provided with a plurality of placement grooves 2121, which are used to accommodate the markers 7. The conveying part 22 is used to convey the plurality of material trays 212 in sequence through the range of motion of the labeling manipulator 24.

[0049] Reference Figure 5 and Figure 6 The marker 7 includes a suction cup 71 and a marking head 72 fixed on the suction cup 71. The edge of the suction cup 71 is integrally formed with a plurality of flanges 73, and the plurality of flanges 73 are arranged at intervals along the circumference of the suction cup 71. The purpose of designing the flange 73 is that when removing the suction cup 71 on the side of the bottle body, the negative pressure environment of the suction cup 71 at a certain part of the bottle body can be destroyed by lifting the flange 73, so that the marker 7 can be easily peeled off the bottle body, reducing the time of removing the marker 7 from the side of the bottle body, thereby saving time cost. The tray 212 is provided with a plurality of convex points 2122 at the bottom of the placement groove 2121, and the plurality of convex points 2122 are arranged at intervals. The convex points 2122 are abutted by the suction cup 71, so as to use the convex points 2122 to destroy the flatness of the bottom of the placement groove 2121, reduce the risk of the suction cup 71 being adsorbed on the tray 212, and improve the problem that the labeling robot 24 is difficult to grasp the marker 7 adsorbed on the tray 212.

[0050] Reference Figure 4 and Figure 6 The marking head 72 is used for the marking robot 24 to grasp and visually detect the rotation adjustment mechanism 3 for identification. The surface of the marking head 72 away from the suction cup 71 is engraved with a pattern mark for visual detection and identification. The structure of the marking head 72 is cylindrical and is made of a material that can be adsorbed by a magnet.

[0051] Reference Figure 4 and Figure 5The conveying part 22 includes a first screw lifting assembly 221, a second screw lifting assembly 222, an ejection cylinder 223, a material track 224 and a belt conveyor assembly 225. The first screw lifting assembly 221 and the second screw lifting assembly 222 are both fixed on the main body 1. The first screw lifting assembly 221 and the second screw lifting assembly 222 are respectively located on both sides of the first conveying part 52. The first screw lifting assembly 221 and the second screw lifting assembly 222 are both used to drive the material box 211 to rise and fall in the vertical direction. The first screw lifting assembly 221 and the second screw lifting assembly 222 have the same structure and are both screw lifting mechanisms. In view of the fact that the screw lifting mechanism is a commonly used component in the field of mechanical manufacturing, this application will not repeat it. The first screw lifting assembly 221 is used to store multiple stacked material boxes 211 storing markers 7, and the second screw lifting assembly 222 is used to store multiple stacked empty material boxes 211 to recover the material tray 212.

[0052] Reference Figure 4 and Figure 7 The ejection cylinder 223 is fixed on the main body 1, and the output shaft of the ejection cylinder 223 can pass through the ejection outlet 2112 of the material box 211. The material track 224 is set between the first screw lifting assembly 221 and the second screw lifting assembly 222, and is located above the first conveying part 52. When the ejection cylinder 223 is matched with the first screw lifting assembly 221, the multiple material trays 212 in the material box 211 can be pushed onto the material track 224 in an orderly manner, and the multiple material trays 212 are against each other on the material track 224 and approach the second screw lifting assembly 222 in an orderly manner. A detection sensor 12 is fixed on the main body 1 above the material track 224, and the detection sensor 12 is close to the second screw lifting assembly 222.

[0053] Reference Figure 4 , a mounting groove is provided at one end of the material track 224 close to the second screw lifting assembly 222, and the mounting groove is used to install the belt conveyor assembly 225. The detection sensor 12 is electrically connected to the second screw lifting assembly 222 and the belt conveyor assembly 225. When the detection sensor 12 recognizes that the material tray 212 is located at one end of the material track 224 close to the second screw lifting assembly 222, the belt conveyor assembly 225 is started, and the material tray 212 is pushed into the material box 211 on the second screw lifting assembly 222, and then the belt conveyor assembly 225 is closed, and the second screw lifting assembly 222 is started and drives the material box 211 to rise to a set height, so that the next empty material tray 212 can enter the material box 211.

[0054] Reference Figure 8The rotary imaging detection unit 23 includes a servo motor 231 mounted on the main body 1, a disc 232 fixed on the output shaft of the servo motor 231, and a visual detection component 233 mounted on the main body 1. The servo motor 231 is located in the middle of the first conveying unit 52, and the electrical signal of the servo motor 231 is connected to the visual detection component 233. The disc 232 is for the bottom of the cosmetic bottle to abut. It can be understood that the disc 232 replaces the baffle 11 behind the rear tooth plate 522. When the cosmetic bottles at other positions of the first conveying unit 52 are pressed against the baffle 11, the cosmetic bottles of the rotary imaging detection unit 23 are pressed against the disc 232. The visual detection component 233 is used to identify and detect the printed pattern on the side of the cosmetic bottle. In view of the wide application and known technical characteristics of the visual detection component 233 in the field of automated detection, the specific structure and working principle of the visual detection component 233 will not be elaborated in detail in this application.

[0055] Reference Fig. 9 The safety mark manipulator 24 includes a first motor 241, a rotating rod 242, a second motor 243, a telescopic cylinder 244 and a gas block 245. The first motor 241 is fixed to the main body 1. One end of the rotating rod 242 is fixed to the output shaft of the first motor 241, and the other end is rotatably connected to the main body 1. The rotating rod 242 is located above the material track 224. The second motor 243 is fixed to the rotating rod 242, and the telescopic cylinder 244 is fixed to the output shaft of the second motor 243. One surface of the gas block 245 is fixed to the output shaft of the telescopic cylinder 244, and the other surface is fixed with a plurality of negative pressure suction cups 246, and the negative pressure suction cups 246 are externally connected to the negative pressure device.

[0056] Reference Figure 5 and Fig. 9 The working principle of the safety mark manipulator 24 is as follows: after the multiple negative pressure suction cups 246 absorb the multiple markers 7 on the material tray 212, the output shaft of the telescopic cylinder 244 shrinks, and the second motor 243 drives the gas block 245 to rotate, so that the multiple markers 7 are arranged along the axial direction of the cosmetic bottle. Then the first motor 241 is started, driving the telescopic cylinder 244 to deflect until the axis of the telescopic cylinder 244 is perpendicular to the axis of the cosmetic bottle, and the first motor 241 stops. The output shaft of the telescopic cylinder 244 extends, and the marker 7 is absorbed to the peripheral side of the cosmetic bottle. The vacuum of the negative pressure suction cup 246 is disconnected, so that the marker 7 can be separated from the safety mark manipulator 24.

[0057] Reference Figure 2 and Figure 8 The structure of the visual detection rotation adjustment mechanism 3 is similar to that of the rotation imaging detection unit 23. The difference is that the camera of the visual detection component 233 in the visual detection rotation adjustment mechanism 3 is tilted so that the bottles at the edge of the first conveying unit 52 can be scanned and detected without interfering with the activity trajectory of the screen printing mechanism 4 and the swing lifting unit 53.

[0058] Reference Figure 2 The screen printing mechanism 4 includes a horizontal reciprocating assembly 41, a screen 42, an abutting cylinder 43 and a scraper 44. The horizontal reciprocating assembly 41 is mounted on the main body 1 and is located above the swing lifting part 53. In view of the versatility and mature technology of the horizontal reciprocating assembly 41 in realizing automatic displacement control, the detailed description of the specific structure and working principle of the horizontal reciprocating assembly 41 is omitted in this application. The screen 42 is mounted on the horizontal reciprocating assembly 41, and the abutting cylinder 43 is mounted on the main body 1 and is located above the screen 42. The scraper 44 is mounted on the output shaft of the abutting cylinder 43, and the abutting cylinder 43 is used to drive the scraper 44 to approach or move away from the screen 42.

[0059] Reference Figure 2 The working principle of screen printing: the swing lifting unit 53 lifts the cosmetic bottle at the visual detection rotation adjustment mechanism 3 and makes the cosmetic bottle abut against the screen 42. The horizontal reciprocating assembly 41 and the abutting cylinder 43 are started, and the abutting cylinder 43 forces the scraper 44 to abut against the side of the cosmetic bottle. The horizontal movement of the screen 42 drives the cosmetic bottle to rotate, and the ink on the screen 42 is printed on the side of the bottle body through the set pattern on the screen 42.

[0060] Reference Figure 3 and Figure 6 It is worth noting that an electromagnet 8 is fixed to the inner wall of the first placement slot 532. The electromagnet 8 is used to attract the marker 7 to force the bottle to rotate on the first placement slot 532 and fix it to the specified position. The purpose of designing the electromagnet 8 is to use the on and off of the electromagnet 8, in combination with the marker 7 attracted by the electromagnet 8, to rotate the bottle located under the screen printing mechanism 4, thereby reducing the risk of the printing position being offset due to the rotation of the bottle during the transmission process and improving the accuracy of the secondary overlay printing. The first placement slot 532 is detachably connected to a sliding sheet 9 at the groove 5321. The detachable connection method can be plug-in, bolt connection, magnetic connection, etc. The sliding sheet 9 is used to reduce the friction between the bottle and the first placement slot 532. The sliding sheet 9 can be made of polytetrafluoroethylene (PTFE), polyethylene (PE) or polypropylene (PP).

[0061] The implementation principle of a linear printing device is as follows: using a label installation mechanism 2, on the side of the bottle where the pattern printing is missing, the missing pattern is identified and a marker 7 is temporarily installed at the corresponding position on the side of the bottle to confirm the secondary printing coverage position. With the visual detection rotation adjustment mechanism 3, the relative position of the bottle on the conveyor line 5 is rotated so that the marker 7 is in the correct relative position relative to the conveyor line 5, so as to reduce the risk of secondary printing misalignment due to the deflection of the bottle during the conveyor line 5. With the on and off power of the electromagnet 8, the risk of the printing position being offset due to the rotation of the swing lifting part 53 during the transmission process and when the bottle contacts the screen 42 is further reduced, and the accuracy of the secondary coverage printing is further improved. Then, the secondary coverage printing on the side of the bottle can be completed by the screen printing mechanism 4. After the secondary printing is completed, the marker 7 on the side of the bottle can be removed, and the bottle with the missing pattern printing can be circulated normally, so as to complete the secondary accurate coverage printing operation on the side of the cosmetic bottle, improve the problem of batch printing products being defective and scrapped in the printing process of cosmetic bottles, and reduce production costs.

[0062] Of course, in addition to being used for secondary overprinting of missing patterns, the present application can also be used to upgrade part of the original printed pattern by simply replacing the screen 42 at the pattern change position to position and cover the changed printed pattern, so that when the printed pattern on the side of the cosmetic bottle is updated, the cosmetic bottle with the old pattern can be updated again, thereby reducing the inventory backlog cost of the old cosmetic bottles.

[0063] The embodiment of the present application also discloses a cosmetic bottle surface treatment process, using the above-mentioned linear printing device.

[0064] A cosmetic bottle surface treatment process comprises the following steps: S1: Place the sample bottle with missing printed pattern on the screen printing mechanism 4, and repeatedly perform printing and pattern clearing operations on the sample bottle to determine the position of the sample bottle covered by the secondary printed pattern on the screen printing mechanism 4, and mark and draw lines at the corresponding positions of the bottle body and the screen 42.

[0065] S2: Place the sample bottle at the position of the rotating imaging detection unit 23, start the rotating imaging detection unit 23, rotate and scan the bottle body, determine the obvious parts of the bottle body where the printed pattern is not missing, and mark them as the set pattern area, such as the obvious corners on the printed pattern, or the obvious words in the printed words, or the pattern plus words, or the marking points printed in advance in the first printing for the second printing detection, etc.

[0066] S3: Rotate the sample bottle, identify and mark the marking lines on the sample bottle body, start the labeling robot 24, adsorb multiple markers 7 to the side of the bottle body, observe the overlap of the connecting lines of the multiple markers 7 with the marking lines on the side of the bottle body, until the connecting lines of the multiple markers 7 overlap with the marking lines on the side of the bottle body, then the installation position of the marker 7 on the side of the bottle body by the labeling robot 24 can be determined, and the rotation angle of the bottle body after the rotary imaging detection unit 23 detects the set pattern area is recorded and saved as the set angle.

[0067] S4: Place the sample bottle with the marker 7 on the visual detection rotation adjustment mechanism 3, start the visual detection rotation adjustment mechanism 3, rotate and scan the bottle, identify and record the marker 7. Set the visual detection rotation adjustment mechanism 3 to stop the rotation of the bottle immediately or with a delay after detecting the marker 7.

[0068] The purpose of introducing a delayed stop to the rotation of the bottle body is that: when it is found that there is still printing deviation around the sample bottle body of the secondary covering printing operation, the rotation of the bottle body can be delayed to utilize the residual deflection angle of the bottle body to compensate for the rotation angle of the printing position deviation caused by the rotation of the bottle body during the visual detection rotation adjustment mechanism 3 to the screen printing mechanism 4.

[0069] S5: placing a batch of bottles with missing printed patterns on the conveyor line 5, so that the bottles are sequentially subjected to the installation of the marker 7 by the labeling mechanism 2, the position calibration by the visual inspection rotation adjustment mechanism 3, and the secondary covering printing by the screen printing mechanism 4.

[0070] During the secondary overprinting process, the bottles are randomly inspected to confirm that there is no printing deviation in the secondary overprinting. If the random inspection fails, S1 to S4 are repeated until the sample is qualified for the secondary overprinting, and then the bottles after the secondary overprinting can be transferred to the next process.

[0071] S6: Peel off the marker 7 on the side of the bottle body and recycle it. The marker 7 on the side of the bottle body can be peeled off manually or mechanically.

[0072] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A linear printing device, characterized in that: The invention comprises a main body (1), a label installation mechanism (2), a visual detection rotation adjustment mechanism (3) and a screen printing mechanism (4); a conveyor line (5) is installed on the main body (1), and the conveyor line (5) is used to convey bottles; the label installation mechanism (2), the visual detection rotation adjustment mechanism (3) and the screen printing mechanism (4) are sequentially arranged on the main body (1) along the length direction of the conveyor line (5); The label installation mechanism (2) is used to temporarily install a set mark on the side of the bottle with missing patterns; the label installation mechanism (2) comprises a mark storage area (21), a conveying part (22), a rotation imaging detection part (23) and a label installation manipulator (24); the label storage area (21) stores a marker (7); the conveying part (22) is connected to the label storage area (21), and the conveying part (22) is used to transport the marker (7) to the range of movement of the label installation manipulator (24); the rotation imaging detection part (23) is used to rotationally detect a set pattern area, and after detecting the set pattern area, rotate the bottle to a set angle and then stop; The label installation robot (24) is used to install the marker (7) on the peripheral side of the bottle; The visual detection rotation adjustment mechanism (3) is used to rotate the bottle and stop rotating the bottle after detecting the marker (7) on the side of the bottle; the screen printing mechanism (4) is used to print a pattern on the side of the bottle.

2. A linear printing device according to claim 1, characterized in that: The marker (7) comprises a suction cup (71) and a marking head (72) mounted on the suction cup (71); the marking head (72) is used for being grasped by the safety mark manipulator (24) and for being identified and detected by the visual detection rotation adjustment mechanism (3).

3. A linear printing device according to claim 2, characterized in that: A plurality of flanges (73) are arranged on the edge of the suction cup (71), and the plurality of flanges (73) are arranged at intervals along the circumference of the suction cup (71).

4. A linear printing device according to claim 2, characterized in that: The marking storage area (21) comprises a material box (211) and a plurality of material trays (212); the relative inner walls of the material box (211) are provided with a plurality of slots (2115), the plurality of slots (2115) are arranged at intervals along the height direction of the material box (211), the slots (2115) are for the material trays (212) to be inserted, and the plurality of material trays (212) correspond one-to-one to the plurality of slots (2115); the material tray (212) is provided with a plurality of placement grooves (2121), the placement grooves (2121) are used to accommodate the marking objects (7); the conveying part (22) is used to convey the plurality of material trays (212) in sequence through the range of movement of the marking robot (24).

5. A linear printing device according to claim 4, characterized in that: The material tray (212) is provided with a plurality of protrusions (2122) at the bottom of the placement groove (2121), and the plurality of protrusions (2122) are arranged at intervals, and the protrusions (2122) are provided for the suction cup (71) to abut against.

6. A linear printing device according to claim 1, characterized in that: The conveying line (5) comprises a first conveying part (52), a swinging lifting part (53) and a second conveying part (54); the label securing mechanism (2) and the visual detection rotation adjustment mechanism (3) are both installed on the main body (1) at one side of the first conveying part (52); the visual detection rotation adjustment mechanism (3) is located at one end of the first conveying part (52) close to the swinging lifting part (53); the swinging lifting part (53) is located below the screen printing mechanism (4); the swinging lifting part (53) is used to lift the bottle of the visual detection rotation adjustment mechanism (3) to the printing pattern of the screen printing mechanism (4), and convey the bottle with the pattern printed to the second conveying part (54).

7. A linear printing device according to claim 6, characterized in that: The swing lifting part (53) is provided with an electromagnet (8); the electromagnet (8) is used to attract the marker (7) to force the bottle to rotate on the swing lifting part (53) to a designated position.

8. A linear printing device according to claim 7, characterized in that: The swing lifting part (53) is detachably connected with a sliding sheet (9), and the sliding sheet (9) is used to reduce the friction between the bottle and the swing lifting part (53).

9. A linear printing device according to claim 1, characterized in that: The label installation robot (24) is used to install a plurality of the markers (7) on the peripheral side of the bottle, and the plurality of the markers (7) are arranged at intervals along the axial direction of the bottle.

10. A cosmetic bottle surface treatment process, using a linear printing device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: placing a sample bottle with a missing printed pattern on the screen printing mechanism (4), repeatedly performing printing and pattern removal operations on the sample bottle to determine the position of the sample bottle covered by the secondary printed pattern on the screen printing mechanism (4), and marking and drawing lines at corresponding positions on the bottle body and the screen printing mechanism (4); S2: placing the sample bottle at the position of the rotating imaging detection unit (23), starting the rotating imaging detection unit (23), rotating and scanning the bottle body; determining the obvious part of the bottle body where the printed pattern is not missing, and marking it as the set pattern area; S3: Identify and mark the marking line on the test sample bottle, determine the installation position of the marking object (7) on the side of the bottle by the label installation robot (24), record the rotation angle of the bottle after the rotation imaging detection unit (23) detects the set pattern area, and save it as the set angle; S4: placing the sample bottle with the marker (7) on the visual detection rotation adjustment mechanism (3), starting the visual detection rotation adjustment mechanism (3), rotating and scanning the bottle, identifying and recording the marker (7); and setting the visual detection rotation adjustment mechanism (3) to immediately stop or delay the rotation of the bottle after detecting the marker (7); S5: placing a batch of bottles with missing printed patterns on the conveyor line (5), so that the bottles are sequentially subjected to the installation of the marker (7) by the label installation mechanism (2), the position calibration by the visual detection rotation adjustment mechanism (3), and the secondary overprinting by the screen printing mechanism (4); S6: Peel off the marking material (7) on the side of the bottle body.

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