Ink drop dripping detection device, ink-jet printer and material roll replacement method

Abstract

The invention discloses an ink droplet dripping detection device, an ink-jet printer and a material roll replacement method, the ink droplet dripping detection device comprises a fixed part and a movable part, the fixed part is provided with a sliding rail, a locking buckle and a detection table, and the movable part is provided with a locking pin; wherein the ink drop dripping detection device is positioned in the glove box; the detection table is used for bearing a material roll, and the material roll is located between the detection table and the visual detection camera, so that ink droplets printed by the ink-jet printer on the material roll can be detected conveniently; when the locking buckle and the locking pin are in a locking state, the fixed part and the movable part are locked; when the locking buckle and the locking pin are in a non-locking state, the movable part is separated from the fixed part after sliding on the sliding rail, so that the movable part can be taken out of the glove box conveniently. According to the ink drop dripping detection device, the material roll replacement operation is simple and convenient, so that the material roll replacement time is saved.

Description

Technical Field

[0001] The present application relates to the technical field of inkjet printing of display panels, and in particular to an ink drop detection device, an inkjet printer, and a material roll replacement method. Background Art

[0002] At present, the application of inkjet printing technology in the field of display manufacturing is becoming more and more extensive. In recent years, it has gradually been applied in the fields of flexible devices such as OLED, RFID, thin-film solar cells, wearable flexible devices, PCB, smart skin, etc. In addition, it has been successfully applied to advanced process scenarios such as pixel deposition of OLED panels, precise coating of QLED quantum dot materials, adhesive distribution in Micro LED mass transfer, and transparent conductive line printing of flexible displays.

[0003] At this time, the drop point position and drop point diameter of the ink drop affect the accuracy of inkjet printing, and are detected by an ink drop detection device; for example: CN117218984A is a detection unit and detection mechanism for preparing display panels. The disclosed nozzle sprays ink droplets on the detection film, and then uses a visual camera to detect parameters such as the ink drop diameter. The ink drop detection device generally includes two barrels, a receiving barrel and a discharging barrel; the two barrels are used to reel in and out the material rolls; the ink droplets are sprayed on the material rolls by the nozzle. The ink drop detection device is often set in a glove box, which is a sealed box to ensure that the atmosphere inside the glove box is not disturbed by the external environment.

[0004] However, when the ink drop detection device needs to replace the material roll, the thick rubber gloves on the glove box need to be used to replace the material roll inside the glove box. The entire material roll replacement process is inconvenient to operate, and the removed screws are easily lost, so the entire material roll replacement process is time-consuming and laborious.

[0005] Therefore, there is an urgent need for an ink droplet detection device to solve the above problems. Summary of the invention

[0006] The present application provides an ink droplet drop detection device, an inkjet printer and a material roll replacement method. The material roll replacement operation of the ink droplet drop detection device is simple and convenient, thereby saving the material roll replacement time.

[0007] The first aspect of the present application discloses an ink drop detection device. The ink drop detection device includes a fixed part and a moving part. A slide rail, a locking buckle and a detection table are provided on the fixed part, and a locking pin is provided on the moving part. Among them, the ink drop detection device is located in the glove box. The detection table is used to carry the material roll, and the material roll is located between the detection table and the vision detection camera, so as to facilitate the detection of the ink drops printed by the inkjet printer on the material roll. When the locking buckle and the locking pin are in the locked state, the fixed part and the moving part are locked. When the locking buckle and the locking pin are in the unlocked state, after the moving part slides on the slide rail, it separates from the fixed part, so as to facilitate the removal of the moving part from the glove box.

[0008] In the above solution, the moving part and the fixed part of the ink drop detection device can be completely separated, and no additional disconnection operations are required for liquids, gases, wires, etc. Moreover, the moving part and the fixed part are separated or installed through the slide rail, and the operation is simple. The locking buckle and the locking pin can lock the moving part and the fixed part. In addition, a magnetic attraction component can be provided around the locking buckle and the locking pin. When the controller makes the locking buckle and the locking pin in the unlocked state, the magnetic attraction components at the locking buckle and the locking pin can prevent the moving part and the fixed part from sliding freely. Their free sliding may cause the moving part to fall and result in collision damage to the moving part. In addition, after the moving part is completely separated from the fixed part, the moving part can be taken out of the glove box, and then a new moving part (the moving part with the material roll already replaced) can be replaced for the fixed part, which is more efficient than replacing the material roll in the glove box. And after the moving part is taken out, replacing the material roll in the normal atmospheric environment is also more convenient.

[0009] In a possible implementation, the fixed part is further provided with a positioning buckle, and the moving part is provided with a positioning pin. Among them, the positioning buckle has a "claw" - shaped structure, a groove is provided between adjacent two "claws", and the edge of any "claw" is in an inclined plane shape. The positioning pin has a "one - word" - shaped structure, so that the positioning pin can slide into the groove in the positioning buckle from any positioning angle.

[0010] In the above solution, it aims to solve how to make the docking smoother and achieve "fool - proof design" when the moving part and the fixed part are docked on the basis of their complete separation. Through the "claw" - shaped structure design of the positioning buckle, the positioning pin can be positioned at any angle, making the docking of the moving part and the fixed part more convenient.

[0011] In a possible implementation, the moving part further includes a cartridge locking clip, a cartridge locking disc, a cartridge locking buckle, and a cartridge; wherein, the cartridge is fixedly arranged inside the moving part, one end face of the cartridge is fixedly connected to the outer shell of the moving part, and the other end face of the cartridge is detachably connected to the cartridge locking disc; the cartridge locking buckle is arranged on the other end face of the cartridge, so that after the cartridge locking clip and the cartridge locking buckle cooperate, the cartridge locking disc can be locked.

[0012] In the above solution, it aims to solve the problem of clamping the material roll after installation. A cartridge locking disc is provided to clamp the material roll located on the cartridge; in order to further facilitate the replacement of the cartridge locking disc, by rotating the cartridge locking clip, the cartridge locking clip and the cartridge locking buckle can be loosened or locked.

[0013] In a possible implementation, the moving part further includes a locking button, a locking chuck, and a cover plate; wherein, the cover plate is arranged at the other end face of the cartridge; the locking chuck is arranged between the two cartridges and is located on the outer shell of the moving part; after the locking button and the locking chuck cooperate, the cover plate is locked on the outer shell of the moving part.

[0014] In the above solution, in order to facilitate the removal of the material roll from the moving part, a cover plate is provided at the end faces of the two cartridges; by pressing the locking button, the cover plate can be removed, which is simple and convenient; and the cover plate can not only prevent foreign objects from entering the inside of the moving part, but also prevent the user's hand from entering the inside of the moving part due to misoperation.

[0015] In a possible implementation, the moving part further includes a chuck locking device, wherein, the chuck locking device is arranged on the cover plate, a cross-shaped card slot and a pin are arranged on one end face of the chuck locking device, one of the cross-shaped card slots is a deep card slot and the other is a shallow card slot; when the pin in the chuck locking device is located in the deep card slot, the other end face of the chuck locking device abuts against the end face of the cartridge locking disc; when the pin in the chuck locking device is located in the shallow card slot, the other end face of the chuck locking device is separated from the end face of the cartridge locking disc.

[0016] In the above solution, it aims to solve the problem that after the moving part is separated from the fixed part, the free rotation of the cartridge causes the material roll inside the moving part to be messy and not convenient for subsequent material roll replacement; by setting the chuck locking device, through the switching of the deep and shallow card slots, the cartridge locking disc can be conveniently operated to prevent the free rotation of the cartridge; after replacing a new material roll and the moving part and the fixed part are installed, the other end face of the chuck locking device can also be separated from the end face of the cartridge locking disc through the switching of the deep and shallow card slots, and the motor of the fixed part is used to prevent the free rotation of the material roll.

[0017] In a possible implementation, a sensor is provided on the fixed part so that when the fixed part is docked with the moving part, after the sensor detects the approach of the moving part, the controller controls the locking buckle and the locking pin to be in a locked state.

[0018] In the above solution, the sensor is a proximity sensor that can monitor the distance between the moving part and the fixed part; when the moving part and the fixed part are installed, after the sensor detects that the moving part has reached the position, it sends a command to the controller, and the controller controls the locking buckle and the locking pin to be in a locked state.

[0019] In a possible implementation, a buffer is provided on the fixed part, and a buffer button is provided at the center position of the buffer so that when the fixed part is docked with the moving part, it plays a buffering role.

[0020] In the above solution, when the fixed part and the moving part are installed, the buffer plays a role in preventing the fixed part and the moving part from colliding.

[0021] In a possible implementation, a counter is provided on the fixed part, and a coil count disc is provided on the moving part; wherein, the counter has an open structure; the coil count disc is a disc-shaped structure, and a plurality of count pieces are provided on the disc, and a preset distance is provided between adjacent two count pieces; so that after the count piece passes through the open structure of the counter, the counter counts.

[0022] In the above solution, the coil count disc cooperates with the counter, and one count piece corresponds to a coil of a preset distance; the counter can directly record the passing number of the count pieces according to the rotation of the count pieces to determine the length of the used coil. Thus, the used length and the unused length of the coil can be known, which is convenient for replacing the coil in time.

[0023] In a possible implementation manner, the fixed part further includes a safety lock and a safety lock hole, and the safety lock includes an air inlet interface, a pneumatic rod, a connecting rod, and a movable rod; wherein, the movable rod is cooperatively arranged with the safety lock hole, the air inlet interface is connected to the inlet of the air cylinder in the safety lock, the piston in the air cylinder is fixedly connected to the pneumatic rod, the pneumatic rod is fixedly connected to the connecting rod, and the connecting rod is fixedly connected to the movable rod, so that in the state of cut-off air, when the spring in the air cylinder is in an extended state, the pneumatic rod drives the movable rod through the connecting rod and extends out in the safety lock hole to prevent the moving part from sliding and falling from the slide rail of the fixed part.

[0024] In the above solution, it aims to solve the problem that when the air supply is suddenly cut off, the connection between the moving part and the fixed part is suddenly disconnected, and the moving part slides and falls from the slide rail, resulting in damage to the moving part. By providing a safety lock, when the air supply is suddenly cut off, the movable rod extends out of the safety lock hole in the plane of the slide rail to prevent the moving part from sliding and falling.

[0025] The second aspect of the present application discloses a method for replacing a material roll, which is applied to the ink drop detection device as described above. The method for replacing a material roll includes:

[0026] The controller disconnects the connection between the locking button and the locking pin;

[0027] Manually lock the chuck lock so that the end face of the chuck lock abuts against the end face of the cylinder locking disc;

[0028] Transfer the moving part from the working cabin in the glove box to the transition cabin, and then take it out from the glove box transition cabin;

[0029] Press the locking button, the locking button and the locking chuck are loosened, and the cover plate is removed;

[0030] Cut the material roll;

[0031] Rotate the cylinder locking clip to disconnect the connection between the cylinder locking clip and the cylinder locking button, and take out the material roll to facilitate subsequent material roll replacement operations.

[0032] In the above solution, an operation method for taking out the material roll during the incoming material roll replacement is given; for the material roll replacement, after taking out the moving part from the glove box, a new moving part (the moving part with the material roll already replaced) can be directly replaced; or after taking out the material roll of the previous moving part, a new material roll can be replaced, and then the moving part after replacing the material roll can be reinstalled. The subsequent replacement process of the material roll includes: sticking the material roll to a take-up cylinder with tape; rotating the cylinder locking clip to lock the connection between the cylinder locking clip and the cylinder locking button; pressing the locking button to lock the cover plate; manually locking the chuck lock so that the end face of the chuck lock abuts against the end face of the cylinder locking disc; transferring the moving part from the transition cabin of the glove box to the working cabin; docking the moving part with the fixed part through the slide rail, and the controller locks the moving part and the fixed part; manually loosening the chuck lock so that the end face of the chuck lock is disengaged from the end face of the cylinder locking disc, thereby completing the material roll replacement process of the ink drop detection device.

[0033] The third aspect of the present application discloses an inkjet printer, which includes the ink drop detection device in any one of the above possible implementation manners.

[0034] The effective effects of the present application include:

[0035] In the ink drop detection device, the moving part and the fixed part can be completely separated, and no additional disconnection operations are required for liquids, gases, wires, etc. Moreover, the moving part and the fixed part are separated or installed through slide rails, and the operation is simple. The locking buckle and the locking pin can lock the moving part and the fixed part. Additionally, a magnetic attraction component can be set around the locking buckle and the locking pin. When the controller makes the locking buckle and the locking pin in a non-locked state, the magnetic attraction component at the locking buckle and the locking pin can prevent the moving part and the fixed part from sliding freely. Their free sliding may cause the moving part to fall and result in collision damage to the moving part. In addition, after the moving part and the fixed part are completely separated, the moving part can be taken out of the glove box, and then a new moving part (the moving part with the material roll already replaced) can be installed on the fixed part, which is more efficient than replacing the material roll in the glove box. And after taking out the moving part, replacing the material roll in a normal atmospheric environment is also more convenient.

[0036] Through the "claw" type structure design of the alignment buckle, the alignment pin can be aligned at any angle, making the alignment of the moving part and the fixed part more convenient.

[0037] A cartridge locking disc is set to clamp the material roll located on the cartridge. To further facilitate the replacement of the cartridge locking disc, by rotating the cartridge locking clamp, the cartridge locking clamp and the cartridge locking buckle can be loosened or locked.

[0038] To facilitate the removal of the material roll from the moving part, covers are set at the end faces of the two cartridges. By pressing the locking button, the covers can be removed simply and conveniently. Moreover, the covers can not only prevent external foreign objects from entering the inside of the moving part, but also prevent the user's hand from entering the inside of the moving part by mistake.

[0039] After the moving part and the fixed part are separated, the free rotation of the cartridge causes the material roll inside the moving part to be messy, which is not convenient for subsequent material roll replacement. By setting a chuck locking device, through the switching of the deep and shallow card slots, the cartridge locking disc can be conveniently locked to prevent the cartridge from rotating freely. After replacing the new material roll and after the moving part and the fixed part are installed, the other end face of the chuck locking device can also be separated from the end face of the cartridge locking disc through the switching of the deep and shallow card slots, and the motor of the fixed part can be used to prevent the material roll from rotating freely.

[0040] When the moving part and the fixed part are installed, after the sensor monitors that the moving part reaches the position, it will send a command to the controller, and the controller will control the locking buckle and the locking pin to be in the locked state.

[0041] When the fixed part and the moving part are installed, the buffer plays a role in preventing the fixed part and the moving part from colliding.

[0042] The material roll counting disk cooperates with the counter, and one counting piece corresponds to a material roll at a preset distance; the counter can directly record the passing quantity of the counting pieces according to the rotation of the counting pieces to determine the length of the used material roll, so as to know the used length and the unused length of the material roll, which is convenient for timely replacement of the material roll;

[0043] By setting a safety lock, when the air supply suddenly cuts off, the movable rod extends out from the safety lock hole on the plane where the slide rail is located to prevent the moving part from sliding and falling. Description of the Drawings

[0044] Figure 1 It is a schematic diagram of the overall structure of an ink drop detection device disclosed in the specification of this application;

[0045] Figure 2 It is a schematic diagram of the separated state structure of an ink drop detection device disclosed in the specification of this application;

[0046] Figure 3 It is a schematic diagram of the structure of the fixed part in an ink drop detection device disclosed in the specification of this application;

[0047] Figure 4 It is a schematic diagram of the structure of the fixed part in another ink drop detection device disclosed in the specification of this application;

[0048] Figure 5 It is a schematic diagram of the structure of the moving part in an ink drop detection device disclosed in the specification of this application;

[0049] Figure 6 It is a schematic diagram of the structure of the moving part in another ink drop detection device disclosed in the specification of this application;

[0050] Figure 7 It is a schematic diagram of the structure of the moving part in yet another ink drop detection device disclosed in the specification of this application;

[0051] Figure 8 It is a schematic diagram of the alignment buckle structure in an ink drop detection device disclosed in the specification of this application;

[0052] Figure 9 It is a schematic diagram of the pneumatic safety lock structure in an ink drop detection device disclosed in the specification of this application;

[0053] Figure 10 It is a schematic diagram of the principle of the pneumatic safety lock disclosed in the specification of this application;

[0054] Figure 11 It is a schematic diagram of the principle of the pneumatic safety lock in the state of gas cut-off disclosed in the specification of this application.

[0055] In the above-mentioned drawings: fixed part 100, moving part 200, material roll 300; locking buckle 101, alignment buckle 102, buffer 103, buffer button 1031, detection table 104, ultraviolet curing lamp 105, slide rail 106, counter 107, sensor 108; locking pin 201, alignment pin 202, locking button 203, locking chuck 20231, chuck locking device 204, lifting structure 205, lifting support rod 2051, material roll support cylinder 2052, side plate 206, side plate insertion pin 2061, side plate buckle 2062, material roll counting plate 207, cartridge locking clip 208, cartridge locking plate 2081, cartridge locking buckle 2082, cartridge 209, cover plate 210; air inlet interface 301, pneumatic rod 302, connecting rod 303, movable rod 304, bottom horizontal plane of slide rail 305, limiting structure 306, safety lock hole 307. Detailed implementation manners

[0056] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments.

[0057] In the description of the embodiments of this application, words such as "for example" or "for illustration" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "for example" or "for illustration" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly speaking, using words such as "for example" or "for illustration" aims to present related concepts in a specific manner.

[0058] In the field of inkjet printers, there are many printing devices and auxiliary devices. Any device needs to be maintained regularly or irregularly. Reducing the maintenance time of the device and making it easy to disassemble and install is very important.

[0059] This specification discloses an ink drop detection device. As Figure 1 shown, the ink drop detection device includes a fixed part 100 and a moving part 200. As Figure 2 shown, the X-axis direction is the separation direction of the moving part 200 from the fixed part 100, and the moving part 200 slides and separates from the slide rail provided on the fixed part 100 through the pulleys provided at the bottom.

[0060] As Figure 2-8As shown in the figure. A slide rail 106, a locking buckle 101 and a detection table 104 are arranged on the fixed part 100, and a locking pin 201 is arranged on the moving part 200. Among them, the ink drop detection device is located in the glove box. The detection table 104 is used to carry the material roll 300, and the material roll 300 is located between the detection table 104 and the vision detection camera, so as to detect the ink drops printed by the inkjet printer on the material roll. When the locking buckle 101 and the locking pin 201 are in the locked state, the fixed part 100 and the moving part 200 are locked. When the locking buckle 101 and the locking pin 201 are in the unlocked state, after the moving part 200 slides on the slide rail 106, it is separated from the fixed part 100, so as to facilitate the removal of the moving part 200 from the glove box.

[0061] At this time, the moving part 200 and the fixed part 100 in the ink drop detection device can be completely separated, and no additional disconnection operations are required for liquid, gas, wires, etc. Moreover, the pulley (not marked in the attached figure) of the moving part 200 and the fixed part 100 are detached or installed through the slide rail 106, and the operation is simple. The locking buckle 101 and the locking pin 201 can lock the moving part 200 and the fixed part 100. And a magnetic attraction component can be arranged around the locking buckle 101 and the locking pin 201. When the controller makes the locking buckle 101 and the locking pin 201 in the unlocked state, the magnetic attraction component at the locking buckle 101 and the locking pin 201 can prevent the moving part 200 and the fixed part 100 from sliding freely. Their free sliding may cause the moving part 200 to fall and cause damage to the moving part 200 due to collision. In addition, after the moving part 200 is completely separated from the fixed part 100, the moving part 200 can be taken out of the glove box, and then a new moving part (the moving part with the material roll already replaced) can be replaced for the fixed part 100, which is more efficient than replacing the material roll in the glove box. And after taking out the moving part, replacing the material roll in the normal atmospheric environment is also more convenient.

[0062] There is a stable atmosphere in the glove box, which can generally be divided into a working chamber and a transition chamber. For example, a glove box and an inkjet processing system with stable and controllable environment disclosed in CN118927801A disclose the glove box and the connection method between the transition chamber and the processing area (that is, the working chamber). Directly replacing the material roll in the glove box requires thick rubber gloves, and the operation is relatively inconvenient and it is easy to miss parts. After taking out the moving part 200 from the glove box, it is more convenient to replace the material roll with thin gloves worn by workers.

[0063] Further, the inspection table 104 is arranged on the fixing part 100. A plurality of small holes are formed in the inspection table 104. The inspection table is an adsorption structure and can adsorb the material roll. When the inkjet printer prints on the flat material roll, the visual camera has relatively high precision requirements for the detection of ink droplets, reaching the micron level. Therefore, the flatness of the inspection table 104 is crucial. Adsorbing the material roll on the inspection table surface by adsorption is more conducive to ink droplet detection.

[0064] At this time, the inspection table can also be arranged on the moving part 200, and the inspection table can be separated from the fixing part together with the moving part. When the inspection table is together with the moving part, the flatness of the inspection table cannot be effectively guaranteed, which often affects the shooting of the ink droplets on the material roll located on the inspection table by the visual camera, resulting in a large error in the ink droplet parameters measured by the ink droplets.

[0065] Therefore, in this specification, arranging the inspection table 104 on the fixing part 100 can greatly improve the accuracy of the ink droplet parameters obtained by ink droplet detection compared with arranging the inspection table on the moving part 200.

[0066] The magnetic attraction component at the locking buckle 101 and the locking pin 201 can prevent the moving part 200 and the fixing part 100 from sliding freely. In order to further improve the possible situation such as the falling and damage of the moving part 200, a safety lock structure can also be set. The magnetic attraction component can play a role in preventing the moving part from falling and being damaged when the moving part and the fixing part are normally separated without gas cut-off and power cut-off. Setting the safety lock is to prevent when the gas is cut off and the power is cut off, especially when the gas is suddenly cut off (the gas is suddenly cut off, but the power is not cut off. The ink droplet dropping detection device is often still in the moving state, and the moving part is more likely to be damaged due to falling), the locking buckle 101 and the locking pin 201 cannot be in the locked state due to gas cut-off. In this case, the problem of preventing the moving part from falling and being damaged is solved.

[0067] In one example, the ink droplet dropping detection device further includes a safety lock and a safety lock hole 307. The safety lock includes an air inlet interface 301, a pneumatic rod 302, a connecting rod 303 and a movable rod 304. Among them, the movable rod 304 is arranged in cooperation with the safety lock hole 307. The air inlet interface 301 is connected to the inlet of the air cylinder in the safety lock. The piston in the air cylinder is fixedly connected to the pneumatic rod 302. The pneumatic rod 302 is fixedly connected to the connecting rod 303, and the connecting rod 303 is fixedly connected to the movable rod 304. So that in the state of gas cut-off, when the spring in the air cylinder extends, the pneumatic rod 302 drives the movable rod 304 through the connecting rod 303 and extends out in the safety lock hole 307 to prevent the moving part 200 from sliding and falling from the slide rail 106 of the fixing part 100.

[0068] Such as Figures 9-11As shown, the safety lock includes an air inlet interface 301, a pneumatic rod 302, a connecting rod 303, and a movable rod 304. Compressed air from the air inlet interface 301 enters the compression cylinder, pushing the piston to drive the movement of the pneumatic rod 302. The pneumatic rod 302 drives the movement of the movable rod 304 through the connecting rod 303. Figure 10 It is a schematic diagram of the safety lock in the state of not cutting off the air supply. Figure 11 It is a schematic diagram of the safety lock in the state of suddenly cutting off the air supply. Figure 10 Among them, for the compressed air source, one branch supplies air to the locking buckle 101 and the locking pin 201. The controller can control the on and off of the solenoid valve. When the solenoid valve is in the conducting state, the locking buckle 101 is locked with the locking pin 201 under the action of the air source pressure. In another air path, the air source compresses the spring, causing the pneumatic rod 302 to move downward, driving the movable rod 304 to move downward through the connecting rod 303, so that the end face of the moving rod is below the bottom horizontal plane 305 of the slide rail (such as Figure 3 the safety lock hole 307 shown, and the plane where the safety lock hole 307 is located is the bottom horizontal plane of the slide rail). Figures 10-11 The limit structure 306 in it is to indicate the movement limit of the movable rod 304. In Figure 11 When the compressed air source suddenly cuts off the air supply, the locking buckle 101 is disconnected from the locking pin 201, there is no compressed air source in the air inlet interface 301, the spring resets, the pneumatic rod 302 moves upward in the vertical direction driven by the piston, driving the movable rod 304 to move upward through the connecting rod 303, so that the end face of the movable rod 304 is above the bottom horizontal plane 305 of the slide rail, locking the pulley of the moving part 200, thus preventing the moving part 200 from slipping off the fixed part 100.

[0069] As Figure 2-8 shown. In one example, the fixed part 100 is further provided with a positioning buckle 102, and the moving part 200 is provided with a positioning pin 202; among them, the positioning buckle has a "claw" - shaped structure, a groove is provided between adjacent two "claws", and the edge of any "claw" is in an inclined plane shape; the positioning pin has a "one - word" - shaped structure, so that the positioning pin can slide into the groove in the positioning buckle from any positioning angle. The structure of the positioning buckle is as Figure 8 shown.

[0070] At this time, when the moving part is docked with the fixed part, the docking is smoother, achieving "fool - proof design". Through the "claw" - shaped structure design of the positioning buckle, the positioning pin can be positioned at any angle, making the positioning of the moving part and the fixed part more convenient.

[0071] As Figures 6-7As shown. In one example, the moving part 200 further includes a cartridge locking clip 208, a cartridge locking disc 2081, a cartridge locking buckle 2082, and a cartridge 209; wherein, the cartridge 209 is fixedly arranged inside the moving part 200, one end face of the cartridge 209 is fixedly connected to the outer shell of the moving part 200, and the other end face of the cartridge 200 is detachably connected to the cartridge locking disc 2081; the cartridge locking buckle 2082 is arranged on the other end face of the cartridge 209, so that after the cartridge locking clip 208 cooperates with the cartridge locking buckle 2082, the cartridge locking disc 2081 can be locked.

[0072] At this time, the cartridge locking disc 2081 is provided to hold the coil 300 located on the cartridge 209; in order to further facilitate the replacement of the cartridge locking disc, by rotating the cartridge locking clip 208, the cartridge locking clip 208 and the cartridge locking buckle 2082 can be loosened or locked. The whole process does not require screwing, and the disassembly and installation are relatively convenient.

[0073] As Figures 6-7 shown, Figure 7 The left cartridge locking clip 208 and the cartridge locking buckle 2082 are not shown in the figure. In one example, the moving part 200 further includes a locking button 203, a locking chuck 2031, and a cover plate 210. Among them, the cover plate 210 is arranged at the other end face of the cartridge 209; the locking chuck 2031 is arranged between the two cartridges 209 and is located on the outer shell of the moving part 200; after the locking button 203 and the locking chuck 2031 cooperate, the cover plate 210 is locked on the outer shell of the moving part 200.

[0074] In the above, in order to facilitate the removal of the coil from the moving part, a cover plate 210 is provided at the end faces of the two cartridges; by pressing the locking button 203, the cover plate 210 can be removed, which is simple and convenient; and the cover plate 210 can not only prevent external foreign objects from entering the inside of the moving part, but also prevent the user's hand from entering the inside of the moving part by mistake.

[0075] As Figures 6-7 shown. Figure 7 The cover plate 210 is not shown in the figure. In one example, the moving part further includes a chuck locking device 204. Among them, the chuck locking device 204 is arranged on the cover plate 210, and a cross-shaped card slot and a pin are arranged on one end face of the chuck locking device 204; one of the cross-shaped card slots is a deep card slot and the other is a shallow card slot; when the pin in the chuck locking device is located in the deep card slot, the other end face of the chuck locking device 204 abuts against the end face of the cartridge locking disc 2081; when the pin in the chuck locking device 204 is located in the shallow card slot, the other end face of the chuck locking device is separated from the end face of the cartridge locking disc. Figure 7 The right side shows the situation where the other end face of the chuck locking device 204 abuts against the end face of the cartridge locking disc 2081.

[0076] In the above example, after the moving part 200 is separated from the fixed part 100, the free rotation of the cartridge 209 causes the coils 300 in the moving part 200 to become messy, making it inconvenient to replace the coils 300 subsequently. By providing the chuck lock 204, through the switching of the deep and shallow slots, convenient operation can lock the cartridge locking disc 2081 to prevent the free rotation of the cartridge; after replacing a new coil and after the moving part 200 and the fixed part 100 are installed, it is also possible to separate the other end face of the chuck lock from the end face of the cartridge locking disc through the switching of the deep and shallow slots, and the motor of the fixed part is used to prevent the free rotation of the coil.

[0077] In the above example, a spring structure is provided inside the chuck lock 204, which enables the plug to be switched in the deep and shallow slots.

[0078] Such as Figures 1-4 shown. In one example, the fixed part 100 is provided with a sensor 108 so that when the fixed part 100 is docked with the moving part 200, after the sensor detects the approach of the moving part 200, the controller controls the lock catch 101 and the locking pin 201 to be in the locked state.

[0079] At this time, the sensor is a proximity sensor, which can monitor the distance between the moving part 200 and the fixed part 100. When the moving part 200 and the fixed part 100 are installed, after the sensor detects that the moving part 200 reaches the position, it will send a command to the controller, and the controller will control the lock catch 101 and the locking pin 201 to be in the locked state.

[0080] Such as Figures 1-4 shown. In one example, the fixed part is provided with a buffer 103, and a buffer button 1031 is provided at the center position of the buffer 103 to play a buffering role when the fixed part 100 is docked with the moving part 200.

[0081] At this time, when the fixed part 100 and the moving part 200 are installed, the buffer 103 plays a role in preventing the fixed part 100 from colliding with the moving part 200.

[0082] Such as Figures 1-4 shown. In one example, the fixed part is provided with a counter 107, and the moving part 200 is provided with a coil counting disc 207; among them, the counter 107 has an open structure; the coil counting disc 207 is a disc-shaped structure, and a plurality of counting pieces are provided on the disc, and a preset distance is provided between adjacent two counting pieces; so that after the counting piece passes through the open structure of the counter, the counter counts.

[0083] In the above example, the roll counting disk 207 cooperates with the counter 107, and one counting piece corresponds to a roll of a preset distance; the counter can directly record the passing number of the counting pieces according to the rotation of the counting pieces to determine the length of the used roll, so as to know the used length and the unused length of the roll, which is convenient for replacing the roll in time. The used length and the unused length of the roll are both known to the controller, and the controller of the nozzle wiping device can give an early warning or prompt according to this roll usage information.

[0084] In this specification, no limitations are imposed on the dimensions of various components, nor on the quantities of components such as the roll counting disk 207, the counter 107, the chuck locking device 204, and the locking pin 201, etc., and they can all be set according to actual requirements. As Figures 1-8 The schematic diagram in this specification is given in Figure 3 In order to facilitate the display of the counter 107, the ultraviolet curing lamp 105 is not shown; the function of the ultraviolet curing lamp 105 in this specification is to dry the ink drops on the roll 300. Figure 7 In order to facilitate the description of the chuck locking device 204, etc., the cover plate 210, etc. are not shown.

[0085] Furthermore, this specification also discloses a roll replacement method, which is applied to the ink drop detection device as described above. The roll replacement method includes steps S101 - S106.

[0086] Step S101: The controller disconnects the connection between the locking buckle 101 and the locking pin 201.

[0087] The controller in this specification refers to the controller of the ink drop detection device.

[0088] Step S102: Manually lock the chuck locking device 204 so that the end face of the chuck locking device 204 abuts against the end face of the cylinder locking disk 2081.

[0089] At this time, the above step includes that the moving part 200 slides away through the bottom pulley installed on the moving part and the slide rail of the fixed part 100.

[0090] Step S103: Transfer the moving part 200 from the working cabin of the glove box to the transition cabin, and then take it out from the glove box transition cabin.

[0091] Step S104: Press the locking button 203, the locking button 203 and the locking chuck 2031 loosen, and remove the cover plate 210.

[0092] Step S105: Cut the roll 300.

[0093] Step S106: Rotate the cartridge locking clip 208 to disconnect the connection between the cartridge locking clip 208 and the cartridge locking buckle 2082, and remove the material roll 300 to facilitate subsequent material roll 300 replacement operations.

[0094] In the above solution, an operation method for removing the material roll during incoming material roll replacement is given; for material roll replacement, after removing the moving part from the glove box, a new moving part (a moving part with a replaced material roll) can be directly replaced; or after removing the material roll of the previous moving part, a new material roll can be replaced and then the moving part after replacing the material roll can be reinstalled.

[0095] The subsequent replacement process of the material roll includes: sticking the material roll 200 to a take-up cartridge (two material rolls 209, one is a take-up cartridge and the other is a pay-off cartridge) with tape; rotating the cartridge locking clip 208 to lock the connection between the cartridge locking clip 208 and the cartridge locking buckle 2082; pressing the locking button 203 to lock the cover plate 210; manually locking the chuck locking device 204 so that the end face of the chuck locking device 204 abuts against the end face of the cartridge locking disc 2081; transferring the moving part 200 from the transition cabin of the glove box to the working cabin; docking the moving part 200 with the fixed part 100 through the slide rail 106, and the controller locks the moving part 200 and the fixed part 100; manually loosening the chuck locking device 204 so that the end face of the chuck locking device 204 is disengaged from the end face of the cartridge locking disc 2081, thereby completing the material roll replacement process of the ink drop detection device.

[0096] During the above process, when the material roll 300 on the top of the moving part 200 is docked with the detection table 104 of the fixed part 100, there may be a collision between the material roll 300 and the detection table 104, resulting in curling of the material roll 300. Therefore, a lifting structure 205 is provided on the moving part 200, and the lifting structure 205 includes a lifting support rod 2051 and a magnetic attraction component. When the material roll 300 is docked with the detection table 104, manually lift the lifting structure 205, and lift the material roll through the lifting support rod 2051 so that the material roll 300 is higher than the table top of the detection table 104; after the docking is completed, manually lower it, and the magnetic attraction component on the lifting structure 205 automatically adsorbs the lifting structure 205 at the preset position of the moving part 200.

[0097] Moreover, material roll support cylinders 2052 are provided on both sides of the lifting structure 205 for adjusting the traveling path of the material roll. Side plates 206 are provided on both sides of the moving part 200, side plate pins 2061 are provided on the side plates 206, and side plate buckles 2062 are provided on the brackets of the moving part 200. After the side plate pins 2061 and the side plate buckles 2062 cooperate, the side plates 206 are fixed. The side plate pins 2061 and the side plate buckles 2062 can also be set as magnetic attraction components. Whether it is the design of the magnetic attraction component or the pin and buckle, it is convenient for the disassembly or installation between the side plates 206 and the moving part 200.

[0098] It should be noted that the structures involved in the material roll replacement process of the moving part 200, the fixed part 100, and the moving part 200 disclosed in this specification do not require threaded connections; they are easy to disassemble and assemble.

[0099] This specification also discloses an inkjet printer, which includes the ink drop detection device in any of the above examples.

[0100] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0101] It should be noted that in the present application, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0102] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. An ink drop detection device, characterized in that: The ink drop detection device comprises a fixed part and a movable part, wherein the fixed part is provided with a slide rail, a locking buckle and a detection platform, and the movable part is provided with a locking pin; wherein, The ink drop detection device is located in the glove box; the detection table is used to carry the material roll, and the material roll is located between the detection table and the visual detection camera, so as to detect the ink drops printed by the inkjet printer on the material roll; The locking buckle and the locking pin are in a locked state, locking the fixed part and the movable part; The locking buckle and the locking pin are in a non-locking state, and the movable part is separated from the fixed part after sliding on the slide rail, so that the movable part can be taken out of the glove box.

2. The ink drop detection device according to claim 1, characterized in that: The fixed part is also provided with an alignment buckle, and the movable part is provided with an alignment pin; wherein, The alignment buckle is in a "claw" type structure, a groove is provided between two adjacent "claws", and the edge of any "claw" is in a bevel shape; The alignment pin is in a "straight" shape, so that the alignment pin can slide into the groove in the alignment buckle from any alignment angle.

3. The ink drop detection device according to claim 1, characterized in that: The moving part also includes a barrel locking clamp, a barrel locking disk, a barrel locking buckle and a barrel; wherein, The barrel is fixedly arranged inside the moving part, one end surface of the barrel is tightly connected to the outer shell of the moving part, and the other end surface of the barrel is detachably connected to the barrel locking disk, so that the barrel locking disk clamps the material roll; The barrel locking buckle is arranged on the other end surface of the barrel, so that the barrel locking disc can be locked after the barrel locking clip cooperates with the barrel locking buckle.

4. The ink droplet detection device according to claim 3, characterized in that: The moving part also includes a locking button, a locking chuck and a cover plate; wherein, The cover plate is arranged at the other end surface of the barrel; The locking chuck is arranged between the two barrels and is located on the outer shell of the moving part; After the locking button and the locking clamp cooperate, the cover plate is locked on the housing of the moving part.

5. The ink droplet detection device according to claim 4, characterized in that: The moving part also includes a chuck locker, wherein: The chuck locker is arranged on the cover plate, and a cross slot and a latch are arranged on one end surface of the chuck locker, wherein one of the cross slots is a deep slot and the other is a shallow slot; When the pin in the chuck locker is located in a deep groove, the other end face of the chuck locker abuts against the end face of the barrel locking disk; when the pin in the chuck locker is located in a shallow groove, the other end face of the chuck locker is disengaged from the end face of the barrel locking disk.

6. The ink drop detection device according to claim 1, characterized in that: The fixed part is provided with a sensor, so that when the fixed part is docked with the movable part, after the sensor detects that the movable part approaches, the controller controls the locking buckle and the locking pin to be in a locked state.

7. The ink drop detection device according to claim 1, characterized in that: The fixing part further includes a safety lock and a safety lock hole, wherein the safety lock includes an air inlet interface, a pneumatic rod, a connecting rod and a movable rod; wherein, The movable rod is arranged in cooperation with the safety lock hole, the air inlet interface is connected to the inlet of the cylinder in the safety lock, the piston in the cylinder is tightly connected to the pneumatic rod, the pneumatic rod and the connecting rod, the connecting rod and the movable rod are all tightly connected, so that when the air is cut off, the pneumatic rod drives the movable rod through the connecting rod when the spring in the cylinder is extended, and extends out of the safety lock hole to prevent the movable part from sliding and falling from the slide rail of the fixed part.

8. The ink drop detection device according to claim 1, characterized in that: The fixed part is provided with a counter, and the movable part is provided with a roll counting disk; wherein, The counter is an open structure; the material roll counting disk is a disc-shaped structure, a plurality of counting plates are arranged on the disc, and a preset distance is spaced between two adjacent counting plates; so that the counter can count after the counting plates pass through the opening structure of the counter.

9. An inkjet printer, characterized in that: The inkjet printer comprises the ink drop detection device as described in any one of claims 1-8.

10. A method for replacing a material roll, characterized in that: Applied to the ink drop detection device as claimed in claim 5, the material roll replacement method comprises: The controller disconnects the connection between the locking buckle and the locking pin; Manually lock the chuck locker so that the end surface of the chuck locker abuts against the end surface of the barrel locking disk; The moving part is transferred from the working compartment of the glove box to the transition compartment, and then taken out from the transition compartment of the glove box; Press the locking button to release the locking button and the locking chuck, and remove the cover plate; Cut the material roll; Rotate the barrel locking clamp to disconnect the barrel locking clamp from the barrel locking buckle, and take out the material roll to facilitate subsequent material roll replacement operations.

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