A full-coverage precise code spraying device for an acoustic shell

Abstract

The application discloses a kind of sound shell all-around accurate code spraying device, including small character code spraying machine;Further comprising: code spraying component, the code spraying component includes base, the small character code spraying machine is located above base, and small character code spraying machine is connected with base by connecting mechanism, the top side of base is rectangular array and is equipped with several storage grooves, the circular bar is rotatably installed in the storage groove by bearing, and rectangular hole is opened at the axis position of the circular bar.The improved sound shell code spraying device uses, can be moved in any direction by the roller drive sound shell on base, so that the accurate alignment operation of sound shell and small character code spraying machine and the accurate code spraying operation of sound can be completed, so that the device can be sound shell all-around angle code spraying operation, without the accurate placement of operator sound shell, reduce the workload of operator.

Description

Technical Field

[0001] This invention relates to the technical field of inkjet printing devices, and more particularly to an all-around precision inkjet printing device for speaker housings. Background Technology

[0002] A coding machine is a software-controlled device that marks products in a non-contact manner. Small character coding machines use the deflection of charged ink to deflect ink droplets off their normal flight path and shoot them onto the surface of the workpiece. The position of each ink droplet is controlled by the electrical charge used to charge the ink droplets, thereby forming specific marks on the printed material.

[0003] In the current speaker housing production process, a small character inkjet printer is generally used to print corresponding identification codes on the speaker housing for easy product traceability. For speaker housings with rectangular side openings, the printing operation typically involves the operator placing the speaker housing at a specific angle on a conveyor belt. The conveyor then moves the speaker housing at a constant speed past the bottom of the small character inkjet printer, thus completing the printing of the identification code. The placement of the speaker housing requires manual adjustment by the operator, increasing their workload. Furthermore, the placement of the speaker housing may cause deviations in its position below the inkjet printer, resulting in a certain degree of deviation in the position of the identification code on the speaker housing. This also leads to relatively low inkjet printer accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide a device for precise all-around inkjet printing on speaker housings, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an all-around precision inkjet printing device for speaker housings, including a small character inkjet printer;

[0006] Also includes:

[0007] The inkjet printing assembly includes a base, a small character inkjet printer mounted on top of the base and connected to the base via a connecting mechanism, a plurality of storage slots arranged in a rectangular array on the top side of the base, a round rod rotatably mounted in the storage slots via bearings, a rectangular hole at the axis of the round rod, a roller in the top opening of the rectangular hole, the top of the roller extending outside the base, an installation slot in the bottom side of the base, the interior of the installation slot communicating with the interior of the storage slots, a guide groove in the top of the round rod, the bottom of the guide groove being annular and fitted around the outer periphery of the top of the rectangular hole, two rectangular grooves in the top of the guide groove being opposite each other on the outer periphery of the top of the rectangular hole, two support plates rotatably mounted on the axle of the roller, the bottoms of the two support plates being respectively located in the two top openings of the corresponding guide grooves and in contact with the inner walls of the two top openings of the corresponding guide grooves;

[0008] Several testing mechanisms are provided, each mechanism being mounted on a corresponding round rod, and the testing mechanism detects the position of the speaker housing on the top side of the base;

[0009] An adjustment component is provided in the mounting slot, and the adjustment component synchronously adjusts the angle of several rollers;

[0010] A drive assembly is located inside the base and synchronously drives several rollers to rotate.

[0011] Preferably, the connecting mechanism includes two threaded rods, which are fixedly mounted on the top side of the base and positioned opposite each other on both sides of several rollers. A bracket is threaded onto the threaded rod by a nut, and the ends of the two brackets away from the threaded rods are fixedly connected to the two ends of the small character inkjet printer by bolts.

[0012] Preferably, the adjusting component includes several toothed rings, which are fixedly sleeved on the bottom of the corresponding round rod, and the top side of the toothed ring is in contact with the inner top wall of the mounting groove. A transmission gear is meshed between two adjacent toothed rings, and each transmission gear is rotatably connected to the base through a rotating shaft. A first driver is provided in the mounting groove, and the driving end of the first driver is fixedly connected to the corresponding transmission gear.

[0013] Preferably, the drive assembly includes a second driver, which is fixedly mounted on the inner sidewall of the mounting groove. Several drive ends of the second driver are fixedly equipped with drive rods, and the end of each drive rod away from the second driver is inserted into the base and rotatably connected to the base. The bottom end of the roller is provided with a first pulley, which is rotatably connected to the corresponding round rod. The outer peripheral wall of the first pulley is interference-fitted with the outer peripheral wall of the corresponding roller. A second pulley is fixedly sleeved on the drive rod at the position corresponding to the first pulley. A transmission belt is sleeved in the groove of the first pulley and the groove of the corresponding second pulley.

[0014] Preferably, a partition is provided between the first pulley and the corresponding second pulley, and both sides of the partition are fixedly connected to the inner wall of the corresponding rectangular hole. The upper and lower sides of the partition are slidably connected to the outer peripheral wall of the corresponding first pulley and the outer peripheral wall of the corresponding second pulley, respectively.

[0015] Preferably, two arc-shaped plates are provided on the outer periphery of the top of the first pulley, and both ends of each arc-shaped plate are fixedly connected to the inner wall of the corresponding rectangular hole, and the inner arc wall of the arc-shaped plate is slidably connected to the outer periphery of the corresponding first pulley.

[0016] Preferably, a carrying plate is provided below several of the drive rods, and both ends of the carrying plate are fixedly connected to the inner wall of the mounting groove. The carrying plate is clearance-fitted with the second driver. The housing of the first driver is fixedly connected to the bottom side of the carrying plate, and the output end of the first driver rotates through the carrying plate. An arc-shaped groove is provided on the carrying plate at the position corresponding to the drive rod, and the bottom of the second pulley is inserted into the corresponding arc-shaped groove and slidably connected to the inner wall of the corresponding arc-shaped groove.

[0017] Preferably, the detection mechanism includes an elastic tube and a pressure monitoring sensor. The bottom of the guide groove is provided with an annularly shaped airbag, and the top side of the airbag is fixedly connected to two corresponding load plates. One end of the elastic tube is fixedly inserted into the wall of the corresponding round rod and communicates with the interior of the corresponding airbag. The detection end of the pressure monitoring sensor is inserted into the opening of the other end of the corresponding elastic tube and is fixedly connected to the corresponding elastic tube.

[0018] Preferably, the air pressure monitoring sensor is vertically arranged, and the other end of the air pressure monitoring sensor is fixedly connected to the inner wall of the corresponding arc-shaped groove. The interior of the elastic tube and the interior of the air bladder are both filled with air, and the part of the elastic tube outside the corresponding round rod is spirally arranged.

[0019] This invention has at least the following beneficial effects:

[0020] 1. When using this improved speaker housing inkjet printer, the speaker housing can be moved in any direction on the base by the roller drive, thereby completing the precise alignment operation between the speaker housing and the small character inkjet printer and the precise inkjet printing operation of the speaker. This allows the device to perform inkjet printing operation at all angles of the speaker housing, eliminating the need for the operator to precisely position the speaker housing and reducing the operator's workload.

[0021] 2. After the coding operation on the speaker casing is completed, the speaker casings can be pushed onto different feeding conveyors according to the category of the identification code. The feeding conveyors at the corresponding positions will transport the different categories of speaker casings to different subsequent assembly stations for speaker assembly, thus facilitating the subsequent tracking of the product. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a front view of the overall structure of the present invention;

[0024] Figure 2 This is a perspective view of the overall structure of the present invention;

[0025] Figure 3 This is a perspective view of the overall structure of the base and small character inkjet printer of the present invention;

[0026] Figure 4 This is a perspective view of the internal structure of the base of the present invention;

[0027] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point A in the middle;

[0028] Figure 6 This is a bottom view of the toothed ring and transmission gear of the present invention;

[0029] Figure 7 This is a perspective view of the overall structure of the round rod and roller of the present invention;

[0030] Figure 8 This is a perspective view of the internal structure of the round rod of the present invention;

[0031] Figure 9 For the present invention Figure 3 A three-dimensional view of the internal structure of the central loading plate after it is rotated 180 degrees counterclockwise.

[0032] Figure 10This is a perspective view of the internal structure of the round rod and support plate of the present invention;

[0033] Figure 11 For the present invention Figure 10 Enlarged view of the structure at point B.

[0034] In the diagram: 1. Small character inkjet printer; 2. Inkjet assembly; 21. Base; 22. Connecting mechanism; 221. Threaded rod; 222. Bracket; 23. Storage slot; 24. Round rod; 25. Rectangular hole; 26. Roller; 27. Mounting slot; 28. Guide slot; 29. ​​Support plate; 3. Adjustment assembly; 31. Gear ring; 32. Transmission gear; 33. First driver; 4. Drive assembly; 41. Second driver; 42. Drive rod; 43. First pulley; 44. Second pulley; 45. Transmission belt; 46. Partition plate; 47. Arc plate; 48. Carrying plate; 49. Arc groove; 5. Detection mechanism; 51. Elastic tube; 52. Air pressure monitoring sensor; 53. Airbag. Detailed Implementation

[0035] To make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0036] This invention provides a technical solution: (Refer to...) Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 10 The present invention discloses an all-around precision inkjet printing device for speaker housing, including a small character inkjet printer 1;

[0037] Also includes:

[0038] The coding assembly 2 includes a base 21, with a small character inkjet printer 1 positioned above it and connected to the base 21 via a connecting mechanism 22. The top side of the base 21 has a rectangular array of storage slots 23. A round rod 24 is rotatably mounted within each storage slot 23 via bearings. A rectangular hole 25 is located at the axis of the round rod 24, and a roller 26 is installed within the top opening of the rectangular hole 25, with the top of the roller 26 extending beyond the base 21. The bottom side of the base 21 has a mounting groove 27. The interior of the loading groove 27 is connected to the interior of the storage groove 23. A guide groove 28 is provided at the top of the round rod 24. The bottom of the guide groove 28 is annular and fits around the outer periphery of the top of the rectangular hole 25. The top of the guide groove 28 has two rectangular grooves that are positioned opposite each other on the outer periphery of the top of the rectangular hole 25. Two support plates 29 are rotatably fitted on the axle of the roller 26. The bottoms of the two support plates 29 are located in the two top openings of the corresponding guide groove 28 and are in contact with the inner walls of the two top openings of the corresponding guide groove 28.

[0039] Several testing mechanisms 5 are provided on corresponding round rods 24, and the testing mechanisms 5 test the position of the speaker housing on the top side of the base 21;

[0040] Adjustment component 3 is located in the mounting slot 27, and adjustment component 3 synchronously adjusts the angle of several rollers 26;

[0041] Drive component 4 is located inside base 21 and synchronously drives several rollers 26 to rotate.

[0042] In this embodiment, it should be noted that several conveyors are provided on the outer periphery of the base 21, and the top side of the discharge end of each conveyor is located between the top side of the base 21 and the top of the roller 26. One of them is a feeding conveyor and the other is a discharge conveyor. The roller 26 is mainly composed of three parts: an outer rubber ring, a middle roller 26, and a central axle. The device is equipped with a control host to control the operation of the device.

[0043] When using this improved speaker housing inkjet printing device, after the previous station completes the processing of the speaker housing, the speaker housing is placed on the conveyor belt of the feeding conveyor. The running feeding conveyor pushes the speaker housing onto the base 21. When the housing contacts the roller 26, the drive component 4 drives the roller 26 to rotate. Due to the friction between the roller 26 and the speaker housing, the rotating roller 26 can apply a traction force to the housing, so that the speaker housing can be lifted along the outer arc wall of the roller 26 and directly slide on the top side of several rollers 26, thereby automatically completing the feeding operation of the speaker housing without requiring the operator to perform other operations, thus reducing the operator's workload.

[0044] After the speaker housing has moved to the top of several rollers 26, the rollers 26 and the support plate 29 move downward a corresponding distance in the guide groove 28 due to the pressure of the speaker housing on the rollers 26. This allows the detection mechanism 5 at the corresponding position to detect that there is a speaker housing on the roller 26 at that position. The external control host can determine the position and orientation of the speaker housing on the base 21 according to the distribution of the rollers 26 on the bottom side of the speaker housing. Then, as the rollers 26 push the speaker housing to move, the angle of the rollers 26 is adjusted by the adjustment component 3 to make the speaker housing move along a fixed trajectory. Finally, the corresponding position of the speaker housing moves to the bottom of the small character inkjet printer 1, completing the alignment operation between the speaker housing and the small character inkjet printer 1 with high accuracy.

[0045] After the speaker housing and the small character inkjet printer 1 are aligned, the angle of the roller 26 is adjusted by the adjustment component 3. The direction in which the roller 26 pushes the speaker housing to move is adjusted according to the angle of the speaker housing. Then, the drive component 4 drives the roller 26 to rotate, so that the speaker housing moves at a specific speed and in a specific direction. During the movement of the speaker housing, the small character inkjet printer 1 starts synchronously and always sprays the corresponding identification code at a specific position on the speaker housing. This improved inkjet printer can perform precise inkjet printing operation at all angles of the speaker housing, reducing the workload of the operator.

[0046] After the coding operation on the speaker casing is completed, the roller 26 rotates rapidly to push the speaker casing to the corresponding discharge conveyor according to the category of the identification code. The discharge conveyor at the corresponding position transports the different categories of speaker casings to different subsequent assembly stations for speaker assembly. There is no need to set up additional identification equipment and drive classification equipment. The device has a simple structure and reduces the production cost of the device.

[0047] In a further preferred embodiment of the invention, such as Figure 2 and Figure 3 As shown, the connecting mechanism 22 includes two threaded rods 221, which are fixedly mounted on the top side of the base 21 and are positioned opposite each other on both sides of a plurality of rollers 26. A bracket 222 is threaded onto the threaded rod 221 by a nut, and the ends of the two brackets 222 away from the threaded rod 221 are fixedly connected to the two ends of the small character inkjet printer 1 by bolts.

[0048] In this embodiment, it should be noted that the bracket 222 consists of three parts: a bolt, a connecting plate, and a nut. The bolt rotates through the mounting hole at one end of the bracket 222, and the nut is rotatably connected to the other end of the bracket 222.

[0049] according to Figure 3As shown, before using the device, the operator turns the nut with a wrench, thereby pulling the small character inkjet printer 1 up or down through the bracket 222, so as to adjust the height of the small character inkjet printer 1 according to the height of the speaker shell, so that the device can adapt to the inkjet printing operation of speaker shells of different heights.

[0050] In a further preferred embodiment of the invention, such as Figure 4 , Figure 6 , Figure 7 and Figure 9 As shown, the adjustment component 3 includes several toothed rings 31. The toothed rings 31 are fixedly sleeved on the bottom of the corresponding round rod 24, and the top side of the toothed rings 31 is in contact with the inner top wall of the mounting groove 27. A transmission gear 32 is meshed between two adjacent toothed rings 31, and each transmission gear 32 is rotatably connected to the base 21 through a rotating shaft. A first driver 33 is provided in the mounting groove 27, and the driving end of the first driver 33 is fixedly connected to the corresponding transmission gear 32.

[0051] In this embodiment, it should be noted that the first driver 33 is mainly composed of a housing, a motor, several gears and an output shaft. The output end of the motor drives the output shaft to rotate through several gears of different diameters to enhance the driving force of the motor on the transmission gear 32.

[0052] When the roller 26 pushes the speaker housing to move, according to Figure 4 and Figure 9 As shown, the first driver 33 drives the transmission gear 32 to rotate, according to Figure 6 As shown, during the rotation of the transmission gear 32, several round rods 24 can be driven to rotate synchronously in the forward or reverse direction through several gear rings 31. At this time, due to the mutual contact between the support plate 29 and the inner wall of the guide groove 28, the rotating round rods 24 can drive the rollers 26 to rotate synchronously, so as to adjust the angle of the rollers 26 and thus change the direction of movement of the speaker housing.

[0053] In a further preferred embodiment of the invention, such as Figure 4 , Figure 7 , Figure 8 and Figure 9As shown, the drive assembly 4 includes a second driver 41, which is fixedly mounted on the inner wall of the mounting groove 27. Several drive ends of the second driver 41 are fixedly mounted with drive rods 42, and the end of each drive rod 42 away from the second driver 41 is inserted into the base 21 and rotatably connected to the base 21. The bottom end of the roller 26 is provided with a first pulley 43, and the first pulley 43 is rotatably connected to the corresponding round rod 24. The outer peripheral wall of the first pulley 43 is interference-fitted with the outer peripheral wall of the corresponding roller 26. A second pulley 44 is fixedly sleeved on the drive rod 42 at the position corresponding to the first pulley 43. A transmission belt 45 is sleeved in the groove of the first pulley 43 and the groove of the corresponding second pulley 44.

[0054] In this embodiment, it should be noted that the second driver 41 is mainly composed of a housing, a motor, several gears and several output shafts. The output end of the motor drives several output shafts to rotate through the transmission of several gears so as to synchronously drive several drive rods 42 to rotate.

[0055] When the roller 26 pushes the speaker housing to move, according to Figure 4 , Figure 5 and Figure 9 As shown, the second driver 41 drives several second pulleys 44 to rotate forward or backward via several drive rods 42, according to... Figure 8 As shown, the rotating second pulley 44 drives the first pulley 43 to rotate synchronously through the transmission belt 45. At this time, due to the friction between the first pulley 43 and the roller 26, the rotating first pulley 43 can drive the roller 26 to rotate synchronously as well. When the angle of the round rod 24 changes, the top of the transmission belt 45 rotates synchronously with the rotation of the round rod 24, and the transmission between the first pulley 43 and the second pulley 44 will not be disconnected.

[0056] In a further preferred embodiment of the invention, such as Figure 8 As shown, a partition plate 46 is provided between the first pulley 43 and the corresponding second pulley 44, and both sides of the partition plate 46 are fixedly connected to the inner wall of the corresponding rectangular hole 25. The upper and lower sides of the partition plate 46 are slidably connected to the outer peripheral wall of the corresponding first pulley 43 and the outer peripheral wall of the corresponding second pulley 44, respectively.

[0057] In this embodiment, according to Figure 8 As shown, during the rotation of the top of the transmission belt 45 along with the round rod 24, the partition 46 can isolate the transmission belt 45 from contact due to the deformation of the top of the transmission belt 45, so as to prevent the transmission belts 45 from rubbing against each other and reducing the service life of the transmission belt 45.

[0058] In a further preferred embodiment of the invention, such as Figure 8As shown, two arc-shaped plates 47 are provided opposite to each other on the outer periphery of the top of the first pulley 43, and both ends of each arc-shaped plate 47 are fixedly connected to the inner wall of the corresponding rectangular hole 25, and the inner arc wall of the arc plate 47 is slidably connected to the outer periphery of the corresponding first pulley 43.

[0059] In this embodiment, it should be noted that both sidewalls of the arc plate 47 are arc-shaped to avoid the transmission belt 45 from rubbing against the sharp edges of the arc plate 47 and reducing the service life of the transmission belt 45.

[0060] according to Figure 8 As shown, during the rotation of the top of the transmission belt 45 along with the round rod 24, the arc plate 47 can always constrain the transmission belt 45 in the top groove of the first pulley 43 with the deformation of the top of the transmission belt 45, so as to prevent the transmission belt 45 from sliding out of the groove of the first pulley 43 during the rotation of the top transmission belt 45.

[0061] In a further preferred embodiment of the invention, such as Figure 4 and Figure 9 As shown, a carrying plate 48 is provided below several drive rods 42, and both ends of the carrying plate 48 are fixedly connected to the inner wall of the mounting groove 27. The carrying plate 48 is clearance-fitted with the second driver 41. The outer shell of the first driver 33 is fixedly connected to the bottom side of the carrying plate 48, and the output end of the first driver 33 rotates through the carrying plate 48. An arc-shaped groove 49 is provided on the carrying plate 48 at the position corresponding to the drive rod 42, and the bottom of the second pulley 44 is inserted into the corresponding arc-shaped groove 49 and slidably connected to the inner wall of the corresponding arc-shaped groove 49.

[0062] In this embodiment, according to Figure 4 and Figure 9 As shown, during the rotation of the top of the transmission belt 45 along with the round rod 24, the inner arc wall of the arc groove 49 can always constrain the transmission belt 45 in the bottom groove of the second pulley 44 to the top groove of the second pulley 44, so as to prevent the transmission belt 45 from sliding out of the groove of the second pulley 44 during the rotation of the top transmission belt 45.

[0063] In a further preferred embodiment of the invention, such as Figure 4 , Figure 10 and Figure 11As shown, the detection mechanism 5 includes an elastic tube 51 and a pressure monitoring sensor 52. The bottom of the guide groove 28 is provided with an airbag 53 in a ring shape, and the top side of the airbag 53 is fixedly connected to the two corresponding carrier plates 48. One end of the elastic tube 51 is fixedly inserted into the wall of the corresponding round rod 24 and communicates with the interior of the corresponding airbag 53. The detection end of the pressure monitoring sensor 52 is inserted into the opening of the other end of the corresponding elastic tube 51 and is fixedly connected to the corresponding elastic tube 51.

[0064] In this embodiment, according to Figure 10 and Figure 11 As shown, after the speaker housing moves onto the roller 26, due to the pressure of the speaker on the rubber ring of the roller 26 and the squeezing of the rubber ring of the roller 26 by the first pulley 43, the contact positions of the rubber ring of the roller 26 and the first pulley 43 and the contact positions of the rubber ring of the roller 26 and the speaker housing undergo corresponding degree of contraction and deformation, so that the roller 26 moves downward a corresponding distance. At the same time, during the downward movement of the roller 26, it can drive the support plate 29 to move downward synchronously to press the airbag 53, and gradually increase the air pressure inside the airbag 53 and the connecting tube until the gas inside the airbag 53 pushes against the speaker housing through the support plate 29 and the roller 26 until it is equal to the speaker's own weight. At this time, the air pressure monitoring sensor 52 within the corresponding range can detect the change in air pressure inside the airbag 53 at the corresponding position of the base 21, so that after the speaker housing moves onto the base 21, the control host can directly determine the position and orientation of the speaker housing on the base 21 based on the distribution of the airbag 53 according to the change in air pressure.

[0065] In a further preferred embodiment of the invention, such as Figure 10 As shown, the air pressure monitoring sensor 52 is vertically arranged, and the other end of the air pressure monitoring sensor 52 is fixedly connected to the inner wall of the corresponding arc groove 49. The interior of the elastic tube 51 and the interior of the air bag 53 are both filled with air, and the part of the elastic tube 51 outside the corresponding round rod 24 is spirally arranged.

[0066] In this embodiment, it should be noted that the elastic tube 51 is made of elastic rubber material, and the interior of the elastic tube 51 and the interior of the air bladder 53 are filled with high-pressure air of appropriate strength so that the support plate 29 can stably abut against the inner wall of the guide groove 28 when the roller 26 is not compressed by the speaker housing.

[0067] according to Figure 4 , Figure 5 and Figure 10As shown, during the rotation of the round rod 24, the elastic tube 51 stretches or contracts synchronously with the rotation of the round rod 24, so that the rotation of the round rod 24 will not affect the position of the air pressure monitoring sensor 52 on the carrier plate 48. After passing through the carrier plate 48, the wires and data transmission lines can be stably connected to the air pressure monitoring sensor 52, which facilitates the wiring of the air pressure monitoring sensor 52.

[0068] Working principle: When this improved speaker shell inkjet printer is used, the second driver 41 is started first, and several second pulleys 44 are driven to rotate synchronously through several drive rods 42. The first pulley 43 of the transmission belt 45 also rotates synchronously. At the same time, due to the friction between the first pulley 43 and the second pulley 44, several rollers 26 also rotate synchronously with the drive rods 42.

[0069] After the processing of the speaker housing is completed at the previous station, the speaker housing is placed on the conveyor belt of the feeding conveyor. The running feeding conveyor pushes the speaker housing onto the base 21. When the housing comes into contact with the roller 26, due to the friction between the roller 26 and the speaker housing, the rotating roller 26 can apply a traction force to the housing, so that the speaker housing can be lifted along the outer arc wall of the roller 26 and directly slide on the top side of several rollers 26.

[0070] After the speaker housing has moved to the top of the rollers 26, the contact points between the rubber rings of the rollers 26 and the first pulley 43 and the speaker housing are compressed due to the pressure of the speaker housing on the rubber rings of the rollers 26 and the compression of the rubber rings of the rollers 26 by the first pulley 43. The contact points between the rubber rings of the rollers 26 and the speaker housing are correspondingly deformed, so that the rollers 26 move downward a corresponding distance. At the same time, as the rollers 26 move downward, they can drive the support plate 29 to move downward and press the airbag 53, so that the air pressure inside the airbag 53 and the connecting tube gradually increases until the gas inside the airbag 53 pushes against the speaker housing through the support plate 29 and the rollers 26 and equals the speaker's own weight. At this time, the air pressure monitoring sensor 52 in the corresponding range can detect the change in air pressure in the airbag 53 at the corresponding position of the base 21. Finally, the control host can determine the position and orientation of the speaker housing on the base 21 based on the distribution of the airbags 53 according to the change in air pressure.

[0071] After the speaker housing is moved onto the base 21, the control unit pushes the speaker housing to move slowly on the base 21 by rotating the roller 26, so that the corresponding position of the speaker housing moves to the bottom of the small character inkjet printer 1, thus completing the alignment operation between the speaker housing and the small character inkjet printer 1.

[0072] During the movement of the speaker housing on the base 21, the operation of the second driver 41 can be stopped, and the transmission gear 32 can be driven to rotate by the first driver 33, thereby driving several gear rings 31 to rotate synchronously. At this time, due to the mutual contact between the support plate 29 and the inner wall of the guide groove 28, the rotating gear rings 31 can drive the rollers 26 to rotate synchronously through the round rod 24, so as to adjust the angle of the rollers 26 and change the direction of movement of the speaker housing.

[0073] It should be noted that during the rotation of the rod 24 driven by the first driver 33, the maximum rotation angle of the rod 24 is 90 degrees. The first driver 33 and the second driver 41 drive the roller 26 to rotate in two directions so that the roller 26 can push the speaker housing to move in any direction.

[0074] After the speaker housing and the small character inkjet printer 1 are aligned, the second driver 41 stops running and adjusts the angle of the roller 26 as described above. The direction in which the roller 26 pushes the speaker housing to move is adjusted according to the angle of the speaker housing. Then the second driver 41 starts to drive the speaker housing to move at the corresponding speed in the corresponding direction. As the speaker housing moves, the small character inkjet printer 1 sprays the corresponding identification code on a specific position on the speaker housing.

[0075] After the coding operation on the speaker housing is completed, the position of the speaker housing is adjusted according to the rotating roller 26. Then the roller 26 rotates rapidly to push the speaker housing to the corresponding material conveyor according to the category of the identification code. The material conveyor at the corresponding position transports the different categories of speaker housing to different subsequent assembly stations for speaker assembly.

[0076] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A device for omnidirectional precision inkjet printing on a speaker casing, comprising a small character inkjet printer (1); Its features are, Also includes: The inkjet printing assembly (2) includes a base (21). The small character inkjet printer (1) is located above the base (21) and is connected to the base (21) via a connecting mechanism (22). The top side of the base (21) has a plurality of storage slots (23) arranged in a rectangular array. A round rod (24) is rotatably mounted in the storage slots (23) via bearings. A rectangular hole (25) is provided at the axial position of the round rod (24). A roller (26) is provided in the top opening of the rectangular hole (25), and the top of the roller (26) extends to the outside of the base (21). The bottom side of the base (21) has a... There is an installation groove (27), and the interior of the installation groove (27) is connected to the interior of the storage groove (23). The top of the round rod (24) is provided with a guide groove (28), and the bottom of the guide groove (28) is annular and sleeved on the outer periphery of the top of the rectangular hole (25). The top of the guide groove (28) is provided with two rectangular grooves and is positioned opposite each other on the outer periphery of the top of the rectangular hole (25). Two support plates (29) are sleeved on the axle of the roller (26) and rotate relative to each other. The bottom of the two support plates (29) is located in the two top openings of the corresponding guide groove (28) and contacts the inner wall of the two top openings of the corresponding guide groove (28). Several testing mechanisms (5) are provided on corresponding round rods (24), and the testing mechanisms (5) test the position of the speaker housing on the top side of the base (21); Adjustment component (3), which is located in the mounting groove (27) and adjusts the angle of several rollers (26) synchronously; The drive assembly (4) is located inside the base (21) and drives several rollers (26) to rotate synchronously.

2. The omnidirectional precision inkjet printing device for a speaker casing according to claim 1, characterized in that: The connecting mechanism (22) includes two threaded rods (221), which are fixedly mounted on the top side of the base (21) and are positioned opposite each other on both sides of several rollers (26). A bracket (222) is threaded onto the threaded rod (221) by a nut, and the ends of the two brackets (222) away from the threaded rod (221) are fixedly connected to the two ends of the small character inkjet printer (1) by bolts.

3. The omnidirectional precision inkjet printing device for a speaker casing according to claim 2, characterized in that: The adjustment component (3) includes several toothed rings (31), which are fixedly sleeved on the bottom of the corresponding round rod (24), and the top side of the toothed ring (31) is in contact with the inner top wall of the mounting groove (27). A transmission gear (32) is meshed between two adjacent toothed rings (31), and each transmission gear (32) is rotatably connected to the base (21) through a rotating shaft. A first driver (33) is provided in the mounting groove (27), and the driving end of the first driver (33) is fixedly connected to the corresponding transmission gear (32).

4. The omnidirectional precision inkjet printing device for a speaker casing according to claim 3, characterized in that: The drive assembly (4) includes a second driver (41), which is fixedly mounted on the inner side wall of the mounting groove (27). Several drive ends of the second driver (41) are fixedly mounted with drive rods (42), and the end of each drive rod (42) away from the second driver (41) is inserted into the base (21) and rotatably connected to the base (21). The bottom end of the roller (26) is provided with a first pulley (43), and the first pulley (43) is rotatably connected to the corresponding round rod (24). The outer peripheral wall of the first pulley (43) is interference-fitted with the outer peripheral wall of the corresponding roller (26). A second pulley (44) is fixedly sleeved on the drive rod (42) at the position corresponding to the first pulley (43). A transmission belt (45) is sleeved in the groove of the first pulley (43) and the groove of the corresponding second pulley (44).

5. The omnidirectional precision inkjet printing device for a speaker casing according to claim 4, characterized in that: A partition (46) is provided between the first pulley (43) and the corresponding second pulley (44), and both sides of the partition (46) are fixedly connected to the inner wall of the corresponding rectangular hole (25). The upper and lower sides of the partition (46) are slidably connected to the outer peripheral wall of the corresponding first pulley (43) and the outer peripheral wall of the corresponding second pulley (44), respectively.

6. The omnidirectional precision inkjet printing device for a speaker casing according to claim 5, characterized in that: Two arc-shaped plates (47) are provided on the outer periphery of the top of the first pulley (43), and both ends of each arc-shaped plate (47) are fixedly connected to the inner wall of the corresponding rectangular hole (25). The inner arc wall of the arc plate (47) is slidably connected to the outer periphery of the corresponding first pulley (43).

7. The omnidirectional precision inkjet printing device for a speaker casing according to claim 6, characterized in that: A carrying plate (48) is provided below several of the drive rods (42), and both ends of the carrying plate (48) are fixedly connected to the inner wall of the mounting groove (27). The carrying plate (48) is clearance-fitted with the second driver (41). The outer shell of the first driver (33) is fixedly connected to the bottom side of the carrying plate (48), and the output end of the first driver (33) rotates through the carrying plate (48). An arc-shaped groove (49) is provided on the carrying plate (48) at the position corresponding to the drive rod (42), and the bottom of the second pulley (44) is inserted into the corresponding arc-shaped groove (49) and slidably connected to the inner wall of the corresponding arc-shaped groove (49).

8. The omnidirectional precision inkjet printing device for a speaker casing according to claim 7, characterized in that: The detection mechanism (5) includes an elastic tube (51) and a pressure monitoring sensor (52). The bottom of the guide groove (28) is provided with an airbag (53) in a ring shape. The top side of the airbag (53) is fixedly connected to the two corresponding load plates (48). One end of the elastic tube (51) is fixedly inserted into the wall of the corresponding round rod (24) and communicates with the interior of the corresponding airbag (53). The detection end of the pressure monitoring sensor (52) is inserted into the opening of the other end of the corresponding elastic tube (51) and is fixedly connected to the corresponding elastic tube (51).

9. A precise all-around inkjet printing device for a speaker casing according to claim 8, characterized in that: The air pressure monitoring sensor (52) is set vertically, and the other end of the air pressure monitoring sensor (52) is fixedly connected to the inner wall of the corresponding arc groove (49). The interior of the elastic tube (51) and the interior of the air bag (53) are filled with air, and the part of the elastic tube (51) outside the corresponding round rod (24) is set in a spiral shape.

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