Ink recovery device for inkjet printer

Abstract

The application relates to the technical field of ink recovery devices, and discloses an ink recovery device for a code jet printer, which comprises a collecting box, a discharge pipe is fixedly installed at the bottom end of one side of the collecting box, a cover plate is installed at the top end of the collecting box, and an adjusting and collecting assembly is embeddedly installed on the cover plate. The ink recovery device for the code jet printer is provided with an ink collecting bin at the top end of the collecting box, so that the ink falling from above can enter the ink collecting bin; the ink flows into the separating assembly from the ink outlet arranged at the bottom end by the aid of the flow guide inclined surface arranged at the bottom end, the ink can accurately enter the separating assembly to be subjected to rotary centrifugal separation and filtration, the quality of the subsequent ink recovery is ensured, and the adjusting and collecting assembly is further arranged in the collecting box; the impurities filtered and separated in the separating assembly can be collected by the aid of the adjusting and collecting assembly when needed.

Description

Technical Field

[0001] The present invention relates to the technical field of ink recovery devices, and in particular to an ink recovery device for an inkjet printer. Background Art

[0002] As core equipment in the field of industrial identification, inkjet printers use high-precision nozzles to spray ink onto product surfaces, forming information such as text, patterns, or QR codes. They are widely used in industries such as food, medicine, electronics, and packaging. However, during the coding process, due to factors such as the start and stop of the printhead, deviations in the flight trajectory of ink droplets, or surface characteristics of the substrate, some ink fails to adhere effectively, forming "scattered ink droplets" or "atomized residue." If these unused inks cannot be recovered in a timely manner, it will not only lead to waste of resources and increased costs, but may also cause equipment pollution, environmental problems caused by ink volatilization, and even affect the clarity of the code and the stability of the production line. Therefore, the ink recovery device of the inkjet printer is an indispensable structure, but existing recovery devices still have some problems, as follows:

[0003] The existing inkjet printer ink recovery device adds a filtering structure or a centrifugal structure in the recovery path to reduce the situation where impurities clog the ink return pipe. However, this type of structure has a fast filtering effect decay and is easily clogged by impurities. As a result, the filtering structure needs to be frequently removed for maintenance and cleaning, which greatly reduces the efficiency of the recovery device. For this reason, we propose an ink recovery device for inkjet printers. Summary of the Invention

[0004] The present invention provides an ink recovery device for an inkjet printer, which has the advantages of good filtering effect, slow attenuation of filtering effect, and easy maintenance, and solves the problems raised in the above background technology.

[0005] The present invention provides the following technical solution: an ink recovery device for an inkjet printer, comprising a collection box, a discharge pipe fixedly mounted on the bottom end of one side of the collection box, a cover plate mounted on the top end of the collection box, an adjustment collection assembly embedded in the cover plate, an ink concentration bin mounted on the top end of the collection box above the cover plate, a bottom pipe mounted on the bottom end of the ink concentration bin, a separation assembly mounted inside the adjustment collection assembly, a gap being set between the bottom end of the adjustment collection assembly and the bottom end of the collection box, a drive motor mounted on the bottom end of the collection box, and a rotating shaft of the drive motor fixedly connected to the bottom end of the separation assembly;

[0006] The regulating collection assembly includes a collection cylinder, a discharge groove is evenly and evenly opened in a ring shape on the side of the collection cylinder, a baffle is movably installed in the discharge groove, a pinion is fixedly installed on the top of the baffle, a gear ring is movably installed on the top of the collection cylinder, a short rod is fixedly installed on the top of the gear ring, a rotating hand ring is fixedly installed on the top of the short rod, and a support ring is symmetrically and rotatably installed on the bottom end of the collection cylinder;

[0007] The separation assembly comprises a separation cylinder, a regulating structure movably mounted inside the separation cylinder, a transmission column fixedly mounted at the bottom end of the separation cylinder, a trigger locking structure fixedly mounted at the top end of the separation cylinder, a support structure fixedly mounted inside the separation cylinder, an expansion structure movably mounted on the support structure, a core rod fixedly mounted at the middle of the separation cylinder, a flow guide plate fixedly mounted on the core rod, a limiting short rod fixedly mounted on the inner surface of the separation cylinder, and a liquid inlet pipe fixedly mounted at the middle of the top end of the separation cylinder.

[0008] In a preferred embodiment, the discharge groove on the collection cylinder penetrates through the inside thereof, the baffle is rotatably closed and arranged in the discharge groove, the pinion is arranged at the top end of the collection cylinder, the tooth ring is rotatably arranged at the top end of the collection cylinder, the tooth ring is arranged in meshing with the pinion, the rotating ring is arranged at the outside of the top end of the collection box, and an arc-shaped groove is arranged on the cover plate at the position of the short rod.

[0009] In a preferred embodiment, the separation cylinder is rotatably arranged inside the collection cylinder, the limiting short rods are uniformly and symmetrically arranged at both sides of the separation cylinder and are spaced apart from each other, the regulating structure is slidably arranged on the limiting short rods by clamping, the bottom end of the transmission column is fixedly connected with the output shaft of the driving motor at the bottom end of the collection box, one side of the bottom end of the trigger locking structure is arranged in clamping with the support structure, one end of the expansion structure is movably arranged in clamping inside the support structure, the flow guide plate is arranged in an inclined downward manner, the liquid inlet pipe is rotatably connected with the bottom pipe sleeve at the bottom end of the ink collection bin, the liquid inlet pipe is in an overall L shape and extends to above the flow guide plate inside the separation cylinder at the bottom end, and the flow guide plate is distributed in a spiral shape on the core rod.

[0010] In a preferred embodiment, the regulating structure comprises an upper ring, a lower ring connected and mounted at the bottom end of the upper ring, guide blocks fixedly mounted on the inner surfaces of the upper ring and the lower ring, and guide grooves arranged on the outer sides of the upper ring and the lower ring.

[0011] In a preferred embodiment, the upper ring and the lower ring are fixedly connected by an elastic rope, a pair of semicircular holes are arranged on the upper ring and the lower ring, a circular hole is also arranged on the separation cylinder and has a diameter greater than that of the semicircular holes on the upper ring and the lower ring, the guide grooves are arranged on the back surfaces at the positions of the guide blocks and are slidably arranged in clamping on the limiting short rods, and an inclined surface structure is arranged between the two adjacent guide blocks.

[0012] In a preferred embodiment, the trigger locking structure includes a horizontal tube and a vertical tube, a first spring is fixedly installed at one end inside the horizontal tube, a counterweight block is fixedly installed at the end of the first spring, an inner airbag is fixedly installed at one end of the counterweight block, an elastic bellows is fixedly installed at the bottom of one end of the inner airbag, and a top block is fixedly installed at the bottom end of the elastic bellows.

[0013] In a preferred embodiment, the vertical tube is connected to the horizontal tube, the first spring is located at an end away from the vertical tube, the elastic bellows is sealed and connected to the inner airbag, and the top block is spaced apart from the top end of the support structure.

[0014] In a preferred embodiment, the support structure includes an outer rod body, a cross bar is fixedly installed on the outer side surface of the outer rod body, a locking piece is movably installed inside the outer rod body, the cross bar is fixedly connected to the inner surface of the separation cylinder, a protruding rod is installed on the top of the locking piece, and the protruding rod is slidably arranged in the vertical tube, oblique notches are evenly opened on the locking piece, and one end of the expansion structure is movably arranged on the locking piece for clamping.

[0015] In a preferred embodiment, the expansion structure includes a supporting round rod, a circular plate is provided at one end of the supporting round rod, and a second spring is sleeved and installed on the supporting round rod at one end of the circular plate, a straight plate is sleeved and installed on the supporting round rod, and a horizontal plate is fixedly installed on the upper and lower ends of one side of the straight plate, an inner support rod is fixedly installed between the two horizontal plates, a resistance roller is rotatably installed on the end of the horizontal plate, and a clamping plate is fixedly installed on the other side of the straight plate.

[0016] In a preferred embodiment, the end of the supporting round rod is fixedly installed on the outside of the outer rod body, the cross bar is sleeved and installed between the locking piece and the circular plate at the end of the outer rod body, the spacing between the two cross plates is less than or equal to the maximum distance of the opening between the two guide blocks, and is clamped between the guide block inclined surface structures, the end of the clamping plate is sleeved and slidably set on the locking piece, and the sliding range is located in the oblique notch range on the locking piece.

[0017] The present invention has the following beneficial effects:

[0018] 1. The ink recovery device for the inkjet printer is provided with an ink concentration tank at the top of the collection box, so that the ink falling from the top can enter the ink concentration tank, and the guide slope provided at the bottom is used to make the ink flow from the ink outlet provided at the bottom to the separation component, so that the ink can accurately enter the separation component for rotary centrifugal separation and filtration, thereby ensuring the quality of subsequent ink recovery. At the same time, an adjustment collection component is also provided inside the collection box. The adjustment collection component can be used to collect impurities filtered and separated in the separation component when needed, and then open it from the top for cleaning. This structure not only greatly increases its capacity to accommodate impurities, but also will not cause serious blockage, which can greatly improve the filtration and separation efficiency and effect of the recovery device.

[0019] 2. The ink recovery device for the inkjet printer is provided with a detachable and closable regulating structure inside the separation cylinder, and a filter mesh with an aperture smaller than that on the separation cylinder is opened on the regulating structure. In this way, during the low-speed centrifugal rotation, the internal structure of the trigger locking structure will not be triggered to unlock the support structure to restrict the movement of the expansion structure, thereby ensuring that the regulating structure will not undergo internal separation and cause the filter hole size to become larger during the low-speed process, thereby ensuring a reliable filtering effect at low speed. When a large amount of impurities accumulate in the filter holes of the regulating structure and need to be cleaned, it is only necessary to increase the rotation speed of the separation cylinder so that the internal structure of the trigger locking structure triggers unlocking the internal support structure, thereby allowing the expansion structure to squeeze and expand the regulating structure under high-speed rotation, thereby allowing the impurities accumulated thereon to be removed from the separation cylinder under the action of high-speed rotation. The ink is thrown out of the mesh, and the opening and closing of the baffle can be adjusted by rotating the wristband. During normal filtration, the baffle rotates open, so that the ink can smoothly enter the collection box for collection and recycling. When impurities need to be cleaned and collected, it can be rotated closed, so that the impurities thrown out by the high-speed rotating separation cylinder can all be concentrated inside the collection cylinder, and flow and settle to its bottom under the action of a small amount of ink flushing. An annular baffle of a certain height is provided on the side of the bottom end of the collection cylinder. The baffle can realize the centrifugal force generated by the rotation of the separation component, so that the impurities are precipitated on the annular baffle at the bottom end of the collection cylinder, that is, on the upper surface of the support ring. The annular baffle can be set to different heights according to different needs to ensure the capacity of the effective precipitation and collection area of ​​impurities, thereby ensuring that the device can improve the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the present invention;

[0022] Figure 3This is a schematic diagram of the three-dimensional structure of the connection between the collection component and the separation component of the present invention;

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of the three-dimensional structure from another angle;

[0024] Figure 5 For the present invention Figure 3 Schematic diagram of the three-dimensional structure when the top of the collecting cylinder is removed;

[0025] Figure 6 This is a schematic diagram of the internal three-dimensional structure of the separation component of the present invention;

[0026] Figure 7 For the present invention Figure 6 Schematic diagram of the local three-dimensional structure;

[0027] Figure 8 For the present invention Figure 7 Front cross-sectional structural diagram;

[0028] Figure 9 For the present invention Figure 5 A in the middle is an enlarged structural diagram;

[0029] Figure 10 It is a three-dimensional schematic diagram of the expansion structure of the present invention;

[0030] Figure 11 This is a schematic cross-sectional view of the trigger locking structure of the present invention.

[0031] In the figure: 1. Collection box; 2. Discharge pipe; 3. Cover plate; 4. Adjustable collection assembly; 41. Collection cylinder; 42. Baffle; 43. Pinion; 44. Gear ring; 45. Short rod; 46. Rotating wristband; 47. Support ring; 5. Ink collection chamber; 6. Separation assembly; 61. Separation cylinder; 62. Adjustment mechanism; 621. Upper ring; 622. Lower ring; 623. Guide block; 624. Guide groove; 63. Transmission column; 64. Trigger locking mechanism; 641. Horizontal tube; 642. Vertical tube. 643. First spring; 644. Counterweight; 645. Inner airbag; 646. Elastic bellows; 647. Top block; 65. Support structure; 651. Outer rod; 652. Cross bar; 653. Locking member; 66. Expansion structure; 661. Supporting round rod; 662. Second spring; 663. Straight plate; 664. Cross plate; 665. Inner support rod; 666. Resistance roller; 667. Clamping plate; 67. Core rod; 68. Guide plate; 69. Short limit rod; 610. Liquid inlet pipe. DETAILED DESCRIPTION

[0032] The technical solutions in the present application will be described clearly and completely in combination with the drawings in the present application. In addition, the forms of each structure described in the following embodiments are only examples, and the ink recovery device for the ink-jet printer is not limited to each structure described in the following embodiments. All other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0033] Please refer to Figure 1-2 An ink recovery device for an ink-jet printer comprises a collection box 1, a discharge pipe 2 is fixedly installed at the bottom end of one side of the collection box 1, a cover plate 3 is installed at the top end of the collection box 1, an adjusting and collecting assembly 4 is embeddedly installed on the cover plate 3, an ink concentrating bin 5 is installed above the cover plate 3 at the top end of the collection box 1, a bottom pipe is arranged at the bottom end of the ink concentrating bin 5, a separating assembly 6 is installed inside the adjusting and collecting assembly 4, the bottom end of the adjusting and collecting assembly 4 is spaced apart from the bottom end inside the collection box 1, a driving motor is installed at the bottom end of the collection box 1, and the rotating shaft of the driving motor is fixedly connected with the bottom end of the separating assembly 6.

[0034] Compared with the prior art, the present application provides an ink concentration tank 5 at the top of the collection box 1, so that the ink falling from the top can enter the ink concentration tank 5, and the guide slope provided at the bottom thereof can be used to make the ink flow from the ink outlet provided at the bottom to the separation component 6, so that the ink can accurately enter the separation component 6 for rotary centrifugal separation and filtration, thereby ensuring the quality of subsequent ink recovery. At the same time, an adjustment collection component 4 is also provided inside the collection box 1, and the adjustment collection component 4 can be used to collect the impurities filtered and separated in the separation component 6 when needed, and then open it from the top for cleaning. This structure not only The capacity of accommodating impurities is greatly increased, and serious clogging will not occur, which can greatly improve the filtration and separation efficiency and effect of the recovery device. At the same time, a detachable and closed regulating structure 62 is provided inside the separation cylinder 61, and a filter mesh with an aperture smaller than the aperture on the separation cylinder 61 is provided on the regulating structure 62. In this way, during the low-speed rotation centrifugation, the internal structure of the trigger locking structure 64 will not trigger the unlocking support structure 65 to restrict the movement of the expansion structure 66, thereby preventing the regulating structure 62 from internal separation during the low-speed process, resulting in the enlargement of the filter pore size, thereby ensuring reliable low-speed filtration effect. The result is that when a lot of impurities are accumulated in the filter holes of the regulating structure 62 and need to be cleaned, it is only necessary to increase the rotation speed of the separation cylinder 61, so that the internal structure of the trigger locking structure 64 triggers the unlocking of the internal support structure 65, thereby enabling the expansion structure 66 to squeeze and expand the regulating structure 62 under the high-speed rotation state, so that the impurities accumulated thereon can be thrown out from the mesh holes on the separation cylinder 61 under the action of high-speed rotation, and the opening and closing of the baffle 42 can be adjusted by rotating the hand ring 46. During the normal filtration process, the baffle 42 rotates open, so that the ink can smoothly enter the collection box 1 for collection and recycling, and when impurities need to be removed, the baffle 42 can be opened and closed. When the impurities are concentrated for cleaning and collection, they can be rotated and closed, so that the impurities thrown out by the high-speed rotating separation cylinder 61 can all be concentrated inside the collection cylinder 41, and flow and settle to its bottom under the action of a small amount of ink flushing. A ring-shaped baffle of a certain height is set on the side of the bottom end of the collection cylinder 41. The baffle can realize the centrifugal force generated by the rotation of the separation component 6, so that the impurities are precipitated and fit the ring-shaped baffle at the bottom end of the collection cylinder 41, that is, on the upper surface of the support ring 47. The ring-shaped baffle can be set at different heights according to different needs to ensure the capacity of the effective precipitation and collection area of ​​impurities, thereby ensuring that the device can improve its utilization efficiency.

[0035] See also Figure 1-5An ink recovery device for an inkjet printer includes an adjustable collection component 4, which includes a collection cylinder 41. A discharge groove is evenly and evenly provided in an annular shape on the side surface of the collection cylinder 41. A baffle 42 is movably installed in the discharge groove. A small gear 43 is fixedly installed on the top of the baffle 42. A gear ring 44 is movably installed on the top of the collection cylinder 41. A short rod 45 is fixedly installed on the top of the gear ring 44. A rotating hand ring 46 is fixedly installed on the top of the short rod 45. A supporting ring 47 is symmetrically and rotatably installed on the bottom end of the collection cylinder 41.

[0036] In this embodiment, it should be noted that the discharge groove on the collecting cylinder 41 runs through the interior thereof, the baffle 42 is rotatably closed and is arranged in the discharge groove, the pinion 43 is arranged at the top of the collecting cylinder 41, the gear ring 44 is arranged to rotate at the top of the collecting cylinder 41, the gear ring 44 is arranged to mesh with the pinion 43, the rotating hand ring 46 is arranged at the outside of the top of the collecting box 1, and an arc groove is opened on the cover 3 at the position of the short rod 45. In this way, when it is necessary to clean and discharge the impurities accumulated inside the separation component 6, it is only necessary to manually rotate the rotating hand ring 46 to make the gear ring 44 drive the pinion 43 to rotate. , and then the baffle 42 is rotated to the state of closing the discharge groove of the collection cylinder 41, and then the driving motor is used to accelerate the rotation to open the internal structure of the separation component 6, and then the impurities are discharged to the inner surface of the baffle 42. Combined with the synchronously discharged ink, the impurities will naturally flow downward to the upper surface of the support ring 47 and deposit. The rotation of the separation component 6 will cause the mixture of impurities and ink on the upper surface of the support ring 47 to produce a vortex, and then the impurities will be centrifugally adhered to the inner surface of the collection cylinder 41 during the vortex process, and the excess ink can be discharged from the top through subsequent overflow to the collection box 1 for collection.

[0037] See also Figure 2-8 An ink recovery device for an inkjet printer includes a separation assembly 6, which includes a separation cylinder 61. A regulating structure 62 is movably installed inside the separation cylinder 61. A transmission column 63 is fixedly installed at the bottom end of the separation cylinder 61. A trigger locking structure 64 is fixedly installed at the top end of the separation cylinder 61. A support structure 65 is fixedly installed inside the separation cylinder 61. An expansion structure 66 is movably installed on the support structure 65. A core rod 67 is fixedly installed in the middle of the separation cylinder 61. A guide plate 68 is fixedly installed circumferentially on the core rod 67. A limiting short rod 69 is fixedly installed on the inner surface of the separation cylinder 61. A liquid inlet pipe 610 is fixedly installed in the middle of the top end of the separation cylinder 61.

[0038] In the embodiment, it needs to be explained that the separation cylinder 61 is rotatably arranged inside the collection cylinder 41, the limiting short rods 69 are uniformly and symmetrically arranged on both sides of the inside of the separation cylinder 61, and are arranged at intervals between adjacent limiting short rods 69, the regulating structure 62 is slidingly arranged on the limiting short rods 69, the bottom end of the transmission column 63 is fixedly connected with the output shaft of the drive motor at the bottom end of the collection box 1, one side of the bottom end of the trigger locking structure 64 is clamped with the supporting structure 65, one end of the expansion structure 66 is clamped inside the supporting structure 65 and movably arranged, the deflector 68 is arranged downwardly and obliquely, the inlet pipe 610 is rotatably connected with the bottom pipe sleeve at the bottom end of the ink collection bin 5, the inlet pipe 610 is L-shaped as a whole and extends to above the deflector 68 inside the separation cylinder 61 at the bottom end, and the deflector 68 is spirally distributed on the wick rod 67. In this way, when the separation cylinder 61 rotates, the ink can be discharged from the inside of the separation cylinder 61 through the regulating structure 62, and the impurities therein can be filtered and separated and left on the inside of the regulating structure 62. When it is necessary to clean the separated impurities from the regulating structure 62, only the rotating ring 46 needs to be manually rotated, so that the baffle 42 is closed, and the rotating speed of the separation cylinder 61 is increased, so that the expansion structure 66 is expanded to the regulating structure 62 by triggering the supporting structure 65 to be unlocked by the trigger locking structure 64, so that the impurities therein can be discharged and collected in the adjusting and collecting assembly 4, so as to ensure the sustainable and effective filtering and separating effect of the separating assembly 6. The spirally distributed deflector 68 can ensure that the ink can be uniformly distributed and rotated in the vertical space inside the separation cylinder 61, so as to avoid being concentrated at the bottom end and affecting the separation effect.

[0039] Please refer to Figure 5-7 A kind of ink recovery device for ink-jet printer, including regulating structure 62, regulating structure 62 includes upper ring 621, lower ring 622 is connected and installed at the bottom end of upper ring 621, guide block 623 is fixedly installed on the inner surface of upper ring 621 and lower ring 622, guide groove 624 is set on the outer side of upper ring 621 and lower ring 622.

[0040] In this embodiment, it should be noted that the upper ring 621 and the lower ring 622 are fixedly connected by an elastic rope, and a pair of semicircular holes are opened on the upper ring 621 and the lower ring 622. A circular hole is also opened on the separation cylinder 61, and the diameter of the circular hole is larger than the diameter of the semicircular holes on the upper ring 621 and the lower ring 622. The guide groove 624 is opened on the back of the position of the guide block 623 and is clamped on the limiting short rod 69 for sliding. An inclined surface structure is opened between the two adjacent guide blocks 623, so that when the separation cylinder 61 rotates at normal speed, When separating impurities, the small apertures on the upper ring 621 and the lower ring 622 can be used to achieve this, and the two are ensured not to separate during the rotation process under the action of the expansion structure 66 and the elastic rope set between them. When separation is required to clean impurities, the expansion structure 66 can be increased by increasing the rotation speed to expand the upper ring 621 and the lower ring 622, thereby separating the two and increasing the discharge gap, thereby realizing the discharge and cleaning of impurities, and after the cleaning is completed, the rotation speed is reduced to make the two fit together again, thereby ensuring the use effect of the structure.

[0041] See also Figure 3 and Figure 11 An ink recovery device for an inkjet printer includes a trigger locking structure 64, which includes a horizontal tube 641 and a vertical tube 642. A first spring 643 is fixedly installed at one end of the horizontal tube 641, a counterweight 644 is fixedly installed at the end of the first spring 643, an inner air bag 645 is fixedly installed at one end of the counterweight 644, an elastic bellows 646 is fixedly installed at the bottom of one end of the inner air bag 645, and a top block 647 is fixedly installed at the bottom end of the elastic bellows 646;

[0042] In this embodiment, it should be noted that the vertical tube 642 is connected to the horizontal tube 641, the first spring 643 is arranged at the end away from the vertical tube 642, the elastic bellows 646 is sealed and connected to the inner airbag 645, and the top block 647 is spaced apart from the top of the support structure 65. In this way, when it is necessary to trigger the support structure 65 to unlock the lock on the expansion structure 66, the counterweight block 644 can be compressed by increasing the rotation speed to compress the inner airbag 645, thereby causing the elastic bellows 646 to continuously expand and squeeze the top block 647 downward. When the rotation speed reaches a certain value, the top block 647 will contact the top of the support structure 65. If the rotation speed continues to increase, the restriction on the expansion structure 66 inside the support structure 65 can be unlocked, thereby realizing the separation of ink and impurities by rotating within the speed limit threshold range, and the restriction can be unlocked when the speed exceeds the speed limit threshold, so that the control structure 62 can expand to discharge impurities, thereby ensuring that the structure can continuously and effectively realize the filtering and separation function, thereby greatly improving the use effect of the device.

[0043] See also Figure 4-10An inkjet printer ink recovery device includes a support structure 65, the support structure 65 includes an outer rod 651, a cross bar 652 is fixedly mounted on the outer side of the outer rod 651, and a locking member 653 is movably mounted inside the outer rod 651;

[0044] In this embodiment, it should be noted that the cross bar 652 is fixedly connected to the inner surface of the separation cylinder 61, a protruding rod is installed on the top of the locking member 653, and the protruding rod is slidably arranged in the vertical tube 642, and oblique notches are evenly opened on the locking member 653, and one end of the expansion structure 66 is located on the locking member 653 and is movably engaged. In this way, when it is necessary to unlock the restriction on the expansion structure 66, as long as the rotation speed increases beyond the threshold, the locking member 653 can be moved downward, and the position of the notch can gradually coincide with the expansion structure 66. In this way, the expansion structure 66 can also move outward under the action of the rotating centrifugal force, thereby realizing the expansion of the regulating structure 62 to achieve the discharge and cleaning of impurities.

[0045] See also Figure 6-10 An ink recovery device for an inkjet printer includes an expansion structure 66, which includes a supporting rod 661. A circular plate is provided at one end of the supporting rod 661, and a second spring 662 is sleeved and installed on the supporting rod 661 at one end of the circular plate. A straight plate 663 is sleeved and installed on the supporting rod 661. A horizontal plate 664 is fixedly installed on the upper and lower ends of one side of the straight plate 663. An inner support rod 665 is fixedly installed between the two horizontal plates 664. A resistance roller 666 is rotatably installed at the end of the horizontal plate 664. A clamping plate 667 is fixedly installed on the other side of the straight plate 663.

[0046] When the cam 654 is in the closed position, the stop 664 is engaged with the stop 665 and the stop 666 is engaged with the stop 666.

[0047] Working principle: the waste ink will first enter the ink collection tank 5, and then flow downward to the liquid inlet pipe 610. The ink flows downward to the surface of the guide plate 68 through the liquid inlet pipe 610. Under the rotation drive of the drive motor, the separation cylinder 61 as a whole and its internal structure rotate. When the ink impurity separation stage is carried out, the rotating hand ring 46 is rotated to make the gear ring 44 drive the small gear 43 to rotate, and then the baffle 42 rotates to open the channel. At this time, the speed is relatively low, so that the ink passes through the upper ring 621 and the lower ring 622 and is separated into the inside of the collection box 1. When it is necessary to clean the impurities filtered by the regulating structure 62, the rotating hand ring 46 is rotated in the opposite direction, so that the baffle at the bottom is opened. The plate 42 reverses to close the channel, and the rotation speed is increased at this time, so that the counterweight block 644 moves to compress the inner airbag 645, so that the elastic bellows 646 expands and pushes the top block 647 to move and squeeze the top of the locking member 653. The locking member 653 moves downward, and the card plate 667 moves centrifugally along the oblique notch of the locking member 653 at a high speed, so that the straight plate 663 drives the resistance roller 666 to squeeze the two guide blocks 623, so that the upper ring 621 and the lower ring 622 will open, so that impurities can be discharged from the expanded channel through the mesh on the separation cylinder 61 to the inside of the collection cylinder 41. After long-term use, you only need to take out the adjustment collection assembly 4 as a whole and open the support ring 47 at the bottom to discharge and clean the impurities.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An ink recovery device for a printer, comprising a collection box (1), characterized in that: A discharge pipe (2) is fixedly installed at the bottom end of one side of the collecting box (1), a cover plate (3) is installed at the top end of the collecting box (1), an adjusting and collecting assembly (4) is embedded and installed on the cover plate (3), an ink concentration tank (5) is installed at the top end of the collecting box (1) above the cover plate (3), a bottom tube is provided at the bottom end of the ink concentration tank (5), a separation assembly (6) is installed inside the adjusting and collecting assembly (4), the bottom end of the adjusting and collecting assembly (4) is spaced apart from the bottom end of the inner bottom end of the collecting box (1), and a driving motor is installed at the bottom end of the collecting box (1), and a rotating shaft of the driving motor is fixedly connected to the bottom end of the separation assembly (6); The regulating collection assembly (4) comprises a collection cylinder (41), a discharge groove is evenly and annularly formed on the side surface of the collection cylinder (41), a baffle (42) is movably mounted in the discharge groove, a pinion (43) is fixedly mounted on the top of the baffle (42), a gear ring (44) is movably mounted on the top of the collection cylinder (41), a short rod (45) is fixedly mounted on the top of the gear ring (44), a rotating hand ring (46) is fixedly mounted on the top of the short rod (45), and a supporting ring (47) is symmetrically and rotatably mounted on the bottom end of the collection cylinder (41); The separation assembly (6) comprises a separation cylinder (61), a regulating structure (62) is movably mounted inside the separation cylinder (61), a transmission column (63) is fixedly mounted on the bottom end of the separation cylinder (61), a trigger locking structure (64) is fixedly mounted on the top end of the separation cylinder (61), a support structure (65) is fixedly mounted inside the separation cylinder (61), an expansion structure (66) is movably mounted on the support structure (65), a core rod (67) is fixedly mounted in the middle of the separation cylinder (61), a guide plate (68) is fixedly mounted circumferentially on the core rod (67), a limiting short rod (69) is fixedly mounted on the inner surface of the separation cylinder (61), and a liquid inlet pipe (610) is fixedly mounted in the middle of the top end of the separation cylinder (61); The regulating structure (62) comprises an upper ring (621), the bottom end of the upper ring (621) is connected to a lower ring (622), guide blocks (623) are fixedly mounted on the inner surfaces of the upper ring (621) and the lower ring (622), and guide grooves (624) are provided on the outer sides of the upper ring (621) and the lower ring (622); The trigger locking structure (64) comprises a transverse tube (641) and a vertical tube (642); a first spring (643) is fixedly mounted on one end of the transverse tube (641); a counterweight (644) is fixedly mounted on the end of the first spring (643); an inner airbag (645) is fixedly mounted on one end of the counterweight (644); an elastic bellows (646) is fixedly mounted on the bottom of one end of the inner airbag (645); and a top block (647) is fixedly mounted on the bottom end of the elastic bellows (646); The support structure (65) includes an outer rod body (651), a cross bar (652) is fixedly installed on the outer side surface of the outer rod body (651), a locking member (653) is movably installed inside the outer rod body (651), the cross bar (652) is fixedly connected to the inner surface of the separation cylinder (61), a protruding rod is installed on the top end of the locking member (653), and the protruding rod is slidably arranged in the vertical tube (642), the locking member (653) is evenly provided with oblique notches, and one end of the expansion structure (66) is movably arranged on the locking member (653) for clamping.

2. The ink recovery device for inkjet printer according to claim 1, characterized in that: The discharge groove on the collecting tube (41) runs through the inside thereof, the baffle (42) is rotatably closed and is arranged in the discharge groove, the pinion (43) is arranged at the top end of the collecting tube (41), the gear ring (44) is arranged at the top end of the collecting tube (41) and is rotatable, the gear ring (44) is arranged to mesh with the pinion (43), the rotating hand ring (46) is arranged at the outside of the top end of the collecting box (1), and an arc groove is opened on the cover plate (3) at the position where the short rod (45) is located.

3. The ink recovery device for inkjet printer according to claim 1, characterized in that: The separation cylinder (61) is located inside the collection cylinder (41) and is rotatably arranged. The limiting short rods (69) are located on both sides of the separation cylinder (61) and are evenly and symmetrically arranged. The adjacent limiting short rods (69) are spaced apart. The regulating structure (62) is clamped on the limiting short rods (69) and is slidably arranged. The bottom end of the transmission column (63) is fixedly connected to the output shaft of the driving motor at the bottom end of the collection box (1). The bottom end of one side of the trigger locking structure (64) is clamped with the support structure (65). One end of the expansion structure (66) is clamped inside the support structure (65) and is movably arranged. The guide plate (68) is arranged to be tilted downward. The liquid inlet pipe (610) is sleeved and rotatably connected to the bottom pipe at the bottom end of the ink concentration tank (5). The liquid inlet pipe (610) is L-shaped as a whole and its bottom end is located inside the separation cylinder (61) and extends above the guide plate (68). The guide plate (68) is spirally distributed on the core rod (67).

4. The ink recovery device for inkjet printer according to claim 1, characterized in that: The upper ring (621) and the lower ring (622) are fixedly connected by an elastic rope. A pair of semicircular holes are provided on the upper ring (621) and the lower ring (622). A circular hole is also provided on the separation cylinder (61), and the diameter of the circular hole is larger than the diameter of the semicircular holes on the upper ring (621) and the lower ring (622). The guide groove (624) is provided on the back side of the position where the guide block (623) is located and is clamped on the limiting short rod (69) for sliding arrangement. An inclined surface structure is provided between two adjacent guide blocks (623).

5. The ink recovery device for inkjet printer according to claim 1, characterized in that: The vertical tube (642) is connected to the horizontal tube (641) through-connection, the first spring (643) is located at one end away from the vertical tube (642), the elastic bellows (646) is connected to the inner air bag (645) through-connection and sealing, and the top block (647) is spaced apart from the top end of the support structure (65).

6. The ink recovery device for inkjet printer according to claim 1, characterized in that: The expansion structure (66) includes a supporting round rod (661), a round plate is provided at one end of the supporting round rod (661), and a second spring (662) is sleeved and installed on one end of the round plate on the supporting round rod (661), a straight plate (663) is sleeved and installed on the supporting round rod (661), and a transverse plate (664) is fixedly installed on the upper and lower ends of one side of the straight plate (663), an inner support rod (665) is fixedly installed between the two transverse plates (664), a resistance roller (666) is rotatably installed at the end of the transverse plate (664), and a clamping plate (667) is fixedly installed on the other side of the straight plate (663).

7. The ink recovery device for inkjet printer according to claim 6, characterized in that: The end of the supporting round rod (661) is fixedly installed on the outside of the outer rod body (651), and the cross bar (652) is sleeved and installed between the locking member (653) and the circular plate at the end of the outer rod body (651). The spacing between the two cross plates (664) is less than or equal to the maximum distance between the openings of the two guide blocks (623), and is clamped between the inclined surface structures of the guide blocks (623). The end of the clamping plate (667) is sleeved and slidably arranged on the locking member (653), and the sliding range is located within the range of the oblique notch on the locking member (653).

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