CN111516393A

CN111516393A - Waste ink collecting device of printer

Info

Publication number: CN111516393A
Application number: CN202010450672.8A
Authority: CN
Inventors: 朱锦腾
Original assignee: Ningbo Deli Kebei Technology Co Ltd
Current assignee: Ningbo Deli Kebei Technology Co Ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-08-11

Abstract

The invention relates to a waste ink collecting device of a printer, which transfers waste ink attached on a waste ink conveyor belt to a waste ink collecting region for removal and collection through the circulating movement of the waste ink conveyor belt, ensures that the waste ink corresponding to the surface of the waste ink conveyor belt positioned below a printing head is in a non-accumulation state, is driven by the non-printing working stroke of the printing head (a carriage), and can be connected with the power input end of the waste ink conveyor belt through the driving of the carriage in each reciprocating movement process of the carriage, thereby transmitting power, converting the transverse movement of the carriage into the circulating rotation of the waste ink conveyor belt, or can be driven by the carriage to reversely move so as to be separated from the power input end of the waste ink conveyor belt in the reverse movement process of the carriage, so that the waste ink conveyor belt stops rotating temporarily. The waste ink collecting device converts the reciprocating motion of the carriage into the unidirectional rotation of the waste ink conveying belt to convey waste ink, and the purpose of actively treating the waste ink is achieved.

Description

Waste ink collecting device of printer

Technical Field

The invention relates to the technical field of printing equipment, in particular to a waste ink collecting device of a printer.

Background

Existing ink jet printers may use inks that are difficult to flow/absorb. In the working process of the printer, the waste ink which is unnecessarily sprayed is easy to accumulate and accumulate, and along with the normal work of the printer, the ink can contact the surface of the spray head after being accumulated to a certain height, so that the image quality can not meet the requirement.

In view of the above technical problem, there are several treatment methods, and a simple implementation method is to use a sponge with high absorption capacity to absorb waste ink. However, waste ink accumulation also occurs after a small amount of absorption by using the absorption sponge, and the printer function is disabled after the waste ink is accumulated to a certain height.

Still another way to achieve this is to make the waste ink ejection positions evenly distributed over a certain width by program control of the printer. Or, the action of opening and closing the corresponding panel and the outer cover of the printer by a user is converted into pushing the accumulated waste ink through the corresponding control mechanism, so that the waste ink is more uniformly distributed in a larger range. Both of these methods of treatment, although slowing down the rate of accumulation of waste ink by extending the range in which waste ink can accumulate, can lead to printer malfunction after accumulating to a certain height within this range.

Another implementation is to design a window that can be opened by the user at a relevant position of the printer, and remind the user to open the window and replace the waste ink absorbing sponge at regular time before the accumulated waste ink is accumulated to a certain extent and the printer function is about to fail. This processing method is relatively complicated, and when the user forgets to replace the waste ink absorbing sponge, the waste ink is accumulated to a certain height, which results in the failure of the printer function.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art, and provides a waste ink collecting device of a printer, which can effectively solve the problem of waste ink accumulation, so that the functional failure of the printer caused by the contact of a printing head and the accumulated waste ink is avoided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a waste ink collecting device of a printer, comprising:

a frame;

the waste ink transfer unit is arranged on the rack and comprises a bearing frame and a waste ink conveying belt, and the waste ink conveying belt can be circularly and rotatably arranged on the bearing frame so as to drive the waste ink attached to the waste ink conveying belt to be transferred to the waste ink collecting area;

a waste ink removing and collecting unit provided in a waste ink collecting region of the frame, for removing and collecting waste ink adhering to the waste ink transporting belt from the waste ink transporting belt;

the transmission unit comprises an actuating element, an elastic element and a transmission element, wherein the actuating element is positioned on a traveling path of a carriage of the printer, which is far away from a printing area, and can be contacted with the carriage to slide transversely along with the carriage, the elastic element acts on the actuating element to enable the actuating element to always have a trend of moving towards the position of the printing area when the elastic element is in an energy storage state, a power input end of the transmission element can be in transmission connection with the actuating element, a power output end of the transmission element can be in transmission connection with the power input end of the waste ink conveyor belt to drive the waste ink conveyor belt to rotate, the transmission element is transversely movably arranged in the moving path of the actuating element and can be contacted with the actuating element and move along with the actuating element when the actuating element is far away from the printing area, so that the power output end of the transmission element is connected with the power, and the driving member can be driven to move reversely in the process that the actuating member moves towards the position of the printing area, so that the power output end of the driving member is separated from the power input end of the waste ink conveying belt.

In order to realize the transverse movement of the actuating piece, the actuating piece further comprises two first brackets which are arranged at intervals in the transverse direction of the machine frame, guide holes which are transversely penetrated are formed in the two first brackets, guide rods which extend along the movement direction of the actuating piece are respectively arranged on two transverse sides of the actuating piece, and the two guide rods of the actuating piece can correspondingly penetrate through the guide holes of the two first brackets and are arranged on the two first brackets in a sliding mode through the sliding fit of the guide rods and the guide holes.

The elastic member may adopt various prior arts, and may include various elastic elements such as a compression spring, a torsion spring, a reed, etc., but in order to better cooperate with the actuating member, the elastic member is sleeved on the guide bar with the first spring as a main body, a limiting member is disposed on a circumferential wall of the guide bar, a first end of the first spring abuts against the limiting member, and a second end abuts against a circumferential edge of the first guide hole of the first bracket.

As a preferred embodiment, the structure of the transmission unit is simplified, the actuating member has a bar-shaped rack extending transversely, the transmission member is a first gear capable of engaging with the bar-shaped rack to form a power input end of the transmission member, the carrier has two rotating shafts spaced apart from each other, the waste toner transport belt is disposed around the two rotating shafts, one of the rotating shafts is provided with a second gear rotating coaxially with the rotating shaft to form a power input end of the waste toner transport belt, and the first gear is capable of engaging with the second gear to form a power output end of the transmission member. It is conceivable that the transmission member of the present embodiment is not limited to the structure using one first gear, and may be a transmission assembly structure formed by combining two or more gears.

In order to facilitate the transverse sliding of the transmission member, the transmission member further comprises a second support, the second support is provided with two strip-shaped grooves which are oppositely arranged and extend transversely, the two axial ends of the first gear are provided with gear shafts, and the two gear shafts of the first gear are correspondingly arranged in the two strip-shaped grooves of the second support in a penetrating manner, so that the first gear is transversely arranged on the second support in a sliding manner.

As a modification, the waste toner removing and collecting unit includes a scraper and a waste toner collecting box which is opened at the upper side and is located below the waste toner transporting belt, the scraper is correspondingly disposed at the opening position of the waste toner collecting box, and the scraper is brought into contact with the bottom surface of the waste toner transporting belt, so that the waste toner attached to the waste toner transporting belt is scraped off and falls into the waste toner collecting box during the relative movement of the scraper and the waste toner transporting belt. The scraper is arranged on the waste ink collecting box, and the waste ink which can be scraped off directly falls into the waste ink collecting box from the upper opening, so that the waste ink is convenient to collect.

As a modification, the scraper extends upward from the opening edge of the waste toner collecting box and is inclined toward the side facing away from the moving direction of the waste toner conveyance belt. The scraper is arranged in a structure inclined towards the side away from the moving direction of the waste ink conveying belt, so that the scraper can be in contact with the surface of the waste ink conveying belt in an inclined angle state, and waste ink on the waste ink conveying belt is effectively removed in the relative movement process of the scraper and the waste ink conveying belt.

In order to adjust the tension of the waste ink conveyor belt, the waste ink conveyor belt further comprises a tension adjusting mechanism which is connected with the waste ink collecting box and can drive the waste ink collecting box to move in the vertical direction, so that the scraper correspondingly arranged on the waste ink collecting box presses the waste ink conveyor belt.

As an improvement, the tension adjusting mechanism includes:

the limiting frame is used for placing the waste ink collecting box and comprises two vertical plates, and the two vertical plates can be respectively restricted at two opposite sides of the waste ink collecting box;

the sliding block is positioned below the bottom surface of the waste ink collecting box and can be horizontally and slidably arranged on the rack, the upper surface of the sliding block is a first wedge-shaped surface, and the first wedge-shaped surface of the sliding block is in sliding fit with a second wedge-shaped surface correspondingly positioned on the bottom surface of the waste ink collecting box so as to realize the up-and-down movement of the waste ink collecting box;

and the action end of the driving piece is connected with the sliding block so as to drive the sliding block to horizontally move relative to the rack.

When the sliding block moves horizontally, the wedge-shaped surface matching structure between the top of the sliding block and the bottom of the waste ink collecting box can convert the horizontal movement of the sliding block into the up-and-down movement of the waste ink collecting box, so that the height adjustment of the waste ink collecting box is realized, wherein the waste ink conveying belt can be tensioned while the waste ink collecting box is lifted, the scraper is ensured to be in full contact with the waste ink conveying belt, and the waste ink is removed. On the other hand, when the waste ink collecting box needs to be repaired or replaced, the sliding block only needs to be moved to reduce the height of the waste ink collecting box, and then the waste ink collecting box can be conveniently taken out for replacement after some limiting elements are removed.

In order to conveniently realize the movement adjustment of the sliding block in the horizontal direction, a threaded hole is formed in the sliding block, a positioning seat is arranged on the rack, the driving piece is an adjusting screw rod which is movably arranged on the positioning seat in a penetrating mode, the rod part of the adjusting screw rod is connected with the threaded hole of the sliding block to form an acting end of the driving piece, a second spring is further sleeved on the adjusting screw rod, two ends of the second spring respectively abut against the position between the sliding block and the positioning plate, and therefore the sliding block always tends to be away from the positioning plate.

Compared with the prior art, the invention has the advantages that: the waste ink collecting device of the printer transfers the waste ink attached on the waste ink conveying belt to the waste ink collecting area for removal and collection through the circular movement of the waste ink conveying belt, ensures that the waste ink corresponding to the surface of the waste ink conveying belt positioned below a printing head can be in a non-accumulation state, can be driven by the non-printing working stroke of the printing head (a carriage) by means of the waste ink collecting device, and enables the waste ink storage and treatment process to be automated, wherein in the reciprocating movement process of the carriage each time, a transmission member of a transmission unit can be connected with a power input end of the waste ink conveying belt through the driving of the carriage, so as to transmit power, the transverse movement of the carriage is converted into the circular rotation of the waste ink conveying belt, and also in the reverse movement process of the carriage, the carriage can drive the transmission member of the transmission unit to reversely move, so as to enable a power output end of, the waste ink collecting device converts the reciprocating motion of the carriage into the unidirectional rotation of the waste ink conveying belt to convey the waste ink so as to realize the purpose of actively treating the waste ink, so that the waste ink treatment is quantitative and controllable, and the reliability of the printer is obviously improved. On the other hand, the waste ink collecting device also prevents the waste ink from flying to other places due to internal and external force factors such as transportation and the like, obviously improves the reliability of the printer, reduces the accidental contact between the waste ink and maintenance personnel, and provides guarantee for the life health of the maintenance personnel and users.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a schematic view showing a state of a waste toner collecting process according to an embodiment of the present invention (a process in which the carriage moves the actuating member in the forward direction, in which the first gear is not engaged with the second gear);

fig. 3 is a schematic view showing the state of the waste toner collecting process according to the embodiment of the present invention (the process in which the carriage drives the actuating member to move forward, in which the first gear is engaged with the second gear and the waste toner transporting belt rotates cyclically);

fig. 4 is a schematic view showing the state of the waste toner collecting process according to the embodiment of the present invention (the process in which the carriage drives the actuator to move in the reverse direction, in which the first gear is disengaged from the second gear, and the waste toner transporting belt stops rotating in a circulating manner);

FIG. 5 is an exploded view of an embodiment of the present invention;

FIG. 6 is a schematic perspective view of another embodiment of the present invention;

fig. 7 is a cross-sectional view of an embodiment of the present invention.

Reference numerals: 10. a frame; 11. a first bracket; 110. a guide hole; 12. a second bracket; 120. a strip-shaped groove; 13. a limiting frame; 131. a vertical plate; 14. a guide rail; 20. a carrier; 21. a rotating shaft; 22. a second gear; 23. a waste ink conveyor belt; 31. an actuator; 311. a guide bar; 312. a strip rack; 313. a limiting member; 314. a branch portion; 32. an elastic member; 33. a transmission member; 330. a gear shaft; 41. a scraper; 42. a waste ink collecting tank; 420. a second wedge-shaped face; 51. a slider; 510. a first wedge-shaped face; 511. a threaded hole; 52. positioning seats; 53. adjusting the screw rod; 54. a second spring; 60. and (5) writing a car.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Existing ink jet printers typically include a carriage that reciprocates along a carriage frame. The carriage is provided with an ink box assembly and a printing head, and the printing mode of the ink-jet printer is that the ink box assembly provides an ink source and the ink is jetted to a recording medium such as paper from a nozzle of the printing head under the driving of a printing signal to complete the recording of characters or figures. In order to maintain the optimal ejection process of ink from the nozzles of the printhead, the inkjet printer ejects ink in a designated area before or during printing, and the printhead moves with a carriage from a printing area located in the middle of the printer to a cleaning area on both sides of the printer to perform a "spitting operation" in order to maintain the printhead and prevent the printhead from clogging. Or the printer does not print for a long time, the spray head has deposition, and the deposited ink can be sprayed in the spraying process, so that the printing image quality is improved.

Referring to fig. 1 to 7, the present embodiment provides a waste toner collecting apparatus of a printer that actively processes waste toner by moving energy, which includes a frame 10, a waste toner transferring unit, a waste toner removing and collecting unit, a transmission unit, and a tension adjusting mechanism. The waste ink transfer unit, the waste ink removing and collecting unit, the transmission unit, and the tension adjusting mechanism are provided on the frame 10.

Referring to fig. 1 and 5, the waste toner transfer unit includes a carriage 20 and a waste toner conveyance belt 23. The carriage 20 is disposed on the frame 10, the carriage 20 includes two rotating shafts 21, and the waste toner conveying belt 23 is disposed around the two rotating shafts 21 so as to be capable of circulating under the driving of the rotating shafts 21. Specifically, the waste ink transport belt 23 is disposed to extend in the transverse direction of the rack 10, and the outer surface of the waste ink transport belt 23 is provided with a material, such as a waste ink absorbing sponge, for attaching or absorbing waste ink, and when the print head moves to the cleaning area and performs a spitting operation toward the waste ink transport belt 23 located below, the waste ink ejected therefrom can attach to the outer surface of the upper layer of the waste ink transport belt, and then the waste ink transport belt 23 is rotated circularly by the rotation shaft 21 to transfer the waste ink attached to the waste ink transport belt 23 to the waste ink collecting area.

Referring to fig. 7, when the waste ink attached to the waste ink conveyance belt 23 is rotated to the waste ink collection area by the waste ink conveyance belt 23, the waste ink attached to the waste ink conveyance belt 23 is removed from the waste ink conveyance belt 23 and collected by the waste ink removal and collection unit in the waste ink collection area of the printer, with the outer surface of the waste ink conveyance belt 23 facing downward.

Referring to fig. 6 and 7, the waste toner removing and collecting unit includes a blade 41 and a waste toner collecting tank 42 opened at the upper side. The waste toner collecting tank 42 is located below the waste toner conveyance belt 23, and specifically, the lower layer of the waste toner conveyance belt 23 may be housed in the upper opening of the waste toner collecting tank 42. The scraper 41 is provided at a position corresponding to the opening of the waste toner collecting tank 42, and the scraper 41 can be brought into contact with the bottom surface of the waste toner conveying belt 23 so as to scrape off the waste toner adhering to the waste toner conveying belt 23 during the relative movement of the scraper 41 and the waste toner conveying belt 23 to fall into the waste toner collecting tank 42. By disposing the scraper 41 on the waste toner collecting tank 42, the waste toner that can be scraped off falls directly into the waste toner collecting tank 42 from the upper opening, facilitating the collection of the waste toner.

Referring to fig. 7, the waste ink collecting tank 42 has a rectangular tank structure. The blade 41 is a blade structure, and specifically, the blade extends upward from the opening edge of the waste toner collecting box 42 and is inclined toward the side away from the moving direction of the waste toner conveyance belt 23. Referring to fig. 7, the lower layer of the waste toner transporting belt 23 is moved from the right side to the left side, and the blade is provided on the left side edge of the opening of the waste toner collecting tank 42 correspondingly and obliquely toward the right side. With this arrangement, it is possible to achieve the contact of the scraper 41 with the surface of the waste toner conveyance belt 23 in an inclined angle state, thereby effectively removing the waste toner on the waste toner conveyance belt 23 during the relative movement with the waste toner conveyance belt 23.

Referring to fig. 5 and 7, the tension adjusting mechanism can adjust the degree of tension of the waste ink conveyance belt 23. The tension adjusting mechanism includes a limit bracket 13, a slide block 51, and a driving member. The limiting frame 13 is disposed on the frame 10 for placing the waste ink collecting box 42, and specifically, the limiting frame 13 includes at least two spaced vertical plates 131, and the two vertical plates 131 can be respectively constrained on the left and right sides of the waste ink collecting box 42 (of course, not limited to the left and right positions of the waste ink collecting box 42, but also can be other azimuth positions), so as to limit the waste ink collecting box 42 in the horizontal direction, so that the waste ink collecting box cannot move in the horizontal direction. In this embodiment, one of the two vertical plates 131 of the limiting member 313 is detachably connected to the frame 10, and when the waste ink collecting tank 42 needs to be repaired or replaced, it is only necessary to move the sliding block 51 to lower the height of the waste ink collecting tank 42, and then remove the corresponding vertical plate 131, so that the waste ink collecting tank 42 can be conveniently taken out for replacement.

Referring to fig. 5 and 7, the slide block 51 is located below the bottom surface of the waste ink collecting tank 42, and is disposed on the frame 10 so as to be horizontally slidable. The upper surface of the slide block 51 is a first wedge-shaped surface 510, and correspondingly, the bottom surface of the waste ink collecting tank 42 is a second wedge-shaped surface 420 disposed in the same direction as the first wedge-shaped surface 510. When the slide block 51 slides horizontally, the up-and-down movement of the waste ink collecting tank 42 can be realized by the sliding engagement of the first wedge surface 510 of the slide block 51 with the second wedge surface 420 of the bottom of the waste ink collecting tank 42.

Referring to fig. 5 and 7, in order to ensure that the sliding block 51 can move smoothly on the frame 10, the frame 10 is further provided with a guide rail 14 extending transversely (i.e. extending in the left-right direction of the frame 10), and the bottom of the sliding block 51 is correspondingly provided with a sliding groove (not shown) adapted to the guide rail 14, through which the sliding block 51 is slidably arranged on the guide rail 14.

Referring to fig. 7, in order to facilitate the movement adjustment of the sliding block 51 in the horizontal direction, and further to achieve the accurate adjustment of the height position of the waste ink collecting box 42, a positioning seat 52 is disposed on the frame 10, the driving member of this embodiment is an adjusting screw 53 movably disposed on the positioning seat 52, a threaded hole 511 is correspondingly disposed on the sliding block 51, and a rod portion of the adjusting screw 53 can be connected with the threaded hole 511 of the sliding block 51, so as to drive the sliding block 51 to slide laterally when the adjusting screw 53 rotates. The adjusting screw 53 is further sleeved with a second spring 54, two ends of the second spring 54 respectively support between the sliding block 51 and the positioning plate, and the second spring 54 can avoid the problem of looseness between the adjusting screw 53 and the sliding block 51, so that the sliding block 51 is more firmly fixed.

When the waste ink transmission belt needs to be tensioned and adjusted, a user can rotate the adjusting screw rod 53 to drive the sliding block 51 to slide transversely, and during the transverse movement of the sliding block 51, the wedge-shaped surface matching structure between the top of the sliding block 51 and the bottom of the waste ink collecting box 42 can convert the horizontal movement of the sliding block 51 into the vertical movement of the waste ink collecting box 42, so that the height adjustment of the waste ink collecting box 42 is realized, wherein the waste ink transmission belt 23 can be tensioned while the waste ink collecting box 42 is lifted, the scraper 41 is ensured to be in full contact with the waste ink transmission belt 23, and the waste ink is removed. On the other hand, when the waste toner collecting tank 42 needs to be repaired or replaced, the waste toner collecting tank 42 can be taken out and replaced very conveniently by moving the slide block 51 to lower the height of the waste toner collecting tank 42 and then removing the vertical plate 131.

Referring to fig. 5 and 6, the transmission unit includes an actuating member 31, an elastic member 32, and a transmission member 33. The frame 10 is provided with two first brackets 11 arranged at intervals in the transverse direction, and the two first brackets 11 are provided with guide holes 110 which penetrate through in the transverse direction. The actuator 31 is a bar-shaped slider, the left and right sides of the bar-shaped slider are provided with guide rods 311, and the extending direction of the guide rods 311 is consistent with the moving direction of the actuator 31. The two guide rods 311 of the actuator 31 can be correspondingly inserted into the guide holes 110 of the two first brackets 11, so that the two guide rods 311 are slidably disposed on the two first brackets 11 through the sliding fit of the guide rods 311 with the guide holes 110.

Referring to fig. 2, the actuator 31 of the present embodiment is located on the traveling path of the carriage 60 of the printer away from the printing area, and specifically, the top of the actuator 31 has a branch 314 extending upward, and when the carriage 60 moves to the left (i.e., moves in a direction away from the printing area of the printer), the branch 314 of the actuator 31 can be contacted, so as to slide the actuator 31 to the left.

Referring to fig. 1 and fig. 5, the elastic element 32 of the present embodiment is mainly formed by a first spring sleeved on the guide rod 311, wherein a limiting member 313 is disposed on a peripheral wall of the guide rod 311, the limiting member 313 may be a blocking piece structure sleeved and constrained on the guide rod 311, a first end of the first spring abuts against the limiting member 313, and a second end of the first spring abuts against a peripheral edge of the first guide hole 110 of the first bracket 11. When the carriage 60 moves in the reverse direction (i.e., moves to the right), the carriage 60 no longer presses the leg 314 of the actuator 31, and the actuator 31 automatically moves to the right and returns to the initial position by the elastic force of the first spring.

Referring to fig. 5, the transmission member 33 of the present embodiment is a first gear having gear shafts 330 at both axial ends thereof. The frame 10 is further provided with a second bracket 12 for supporting the transmission member 33, the second bracket 12 is provided with two opposite strip-shaped grooves 120 extending in the transverse direction, and two gear shafts 330 of the first gear are correspondingly inserted into the two strip-shaped grooves 120 of the second bracket 12, so that the first gear is transversely slidably disposed on the second bracket 12.

Referring to fig. 5, the bottom of the actuator 31 has a bar-shaped rack 312 extending laterally, and one of the two rotary shafts 21 of the waste toner transfer unit is provided with a second gear 22 rotating coaxially with the rotary shaft 21. The first gear is disposed in the moving path of the actuating member 31, and specifically, when the actuating member 31 moves laterally, the first gear can move laterally along the strip-shaped groove 120 of the second bracket 12 under the driving of the strip-shaped rack of the actuating member 31, and thereby the first gear is engaged with or disengaged from the second gear 22 of the rotating shaft 21. Specifically, when the first gear is moved leftward to the set position, it can be simultaneously engaged with the rack bar 312 of the actuator member 31 and the second gear 22, thereby converting the lateral movement of the carriage 60 (lateral movement of the actuator member 31) into the circulating rotation of the waste ink conveyance belt 23. Wherein the first gear and the rack bar 312 engage to form a power input end of the transmission member 33, the first gear and the second gear 22 engage to form a power output end of the transmission member 33, and the second gear 22 forms a power input end of the waste toner transporting belt 23. When the actuator 31 moves rightward, the first gear is disengaged from the second gear 22 because the first gear is not restricted to the right side at this time, and the waste ink transport belt 23 stops rotating.

The waste toner collecting device of the printer of the present embodiment has the advantages of: first, the waste ink collecting device of the printer transfers the waste ink attached on the waste ink conveyor belt 23 to the waste ink collecting region for removal and collection through the circulation movement of the waste ink conveyor belt 23, so as to ensure that the waste ink corresponding to the surface of the waste ink conveyor belt 23 located below the print head is in a non-accumulation state, the waste ink collecting device can provide a driving force by utilizing the non-printing working stroke of the print head (carriage 60), so that the waste ink receiving process is automated, wherein, during each reciprocation of the carriage 60, the transmission member 33 of the transmission unit is driven by the carriage 60 to be engaged with the power input end of the waste ink conveyor belt 23 and thereby transmit the power, so as to convert the transverse movement of the carriage 60 into the circulation rotation of the waste ink conveyor belt 23, and also during the reverse movement of the carriage 60, the transmission member 33 of the transmission unit is driven by the carriage 60 to move in the reverse, therefore, the power output end of the transmission member 33 is separated from the power input end of the waste ink conveyor belt 23, the waste ink conveyor belt 23 stops rotating temporarily, the reciprocating motion is circularly repeated, the reciprocating motion of the carriage 60 is converted into the unidirectional rotation of the waste ink conveyor belt 23 to convey the waste ink, the purpose of actively treating the waste ink is realized, the waste ink treatment is quantized and controllable, and the reliability of the printer is obviously improved. On the other hand, the waste ink collecting device also prevents the waste ink from flying to other places due to internal and external force factors such as transportation and the like, obviously improves the reliability of the printer, reduces the accidental contact between the waste ink and maintenance personnel, and provides guarantee for the life health of the maintenance personnel and users. Secondly, the waste toner collecting device of the printer can convert the horizontal movement of the slide block 51 into the up-and-down movement of the waste toner collecting box 42 by the wedge-shaped surface engagement structure between the top of the slide block 51 and the bottom of the waste toner collecting box 42 of the tension adjusting mechanism, thereby achieving the height adjustment of the waste toner collecting box 42, wherein the tension of the waste toner conveying belt 23 can be achieved while the waste toner collecting box 42 is raised, and the waste toner can be removed by ensuring the doctor blade 41 to be in sufficient contact with the waste toner conveying belt 23, and the tension adjusting mechanism is simple and compact in structure, and can be applied to a small space.

Operation of the waste toner collecting device of the printer of this embodiment:

referring to fig. 2, when the carriage 60 moves the actuator 31 to the left, the rack bar 312 of the actuator 31 can contact the first gear to move the first gear to the left, and when the first gear moves to the set position (i.e., defined by the left end wall of the slot 120 of the second bracket 12), the first gear can engage with the second gear 22 of the waste toner transfer unit, and at this time, during the movement of the actuator 31 to the left (see fig. 3 in detail), the rack bar 312 can rotate the first gear about its axis while transmitting torque to the second gear 22 to rotate the rotary shaft 21, so as to circulate the waste toner transporting belt, and during the rotation of the waste toner transporting belt, the scraper 41 of the waste toner removing and collecting unit can contact the bottom surface of the lower layer of the waste toner transporting belt 23 to scrape down the waste toner attached to the waste toner transporting belt 23 and collect the waste toner during the relative movement of the scraper 41 and the waste toner transporting belt 23 In the header 42, the waste ink is transferred and collected.

Referring to fig. 4, when the carriage 60 moves to the right side to prepare for the next printing operation, the carriage 60 does not press the branch portion 314 of the actuator 31, but the actuator 31 is automatically moved to the right by the elastic force of the first spring, and at this time, the rack bar 312 of the actuator 31 can also move the first gear (due to the right-side unrestriction of the first gear) to the right side, during which the first gear can be disengaged from the second gear 22 of the waste toner transfer unit, the waste toner conveyance belt 23 temporarily stops rotating, and the waste toner removing operation of the waste toner conveyance belt is not performed. When the carriage 60 has finished the printing operation and moves to the left again, the actuator 31 is moved to the left, and the carriage 60 is converted into the circular rotation of the waste ink transport belt 23 by the transmission unit by the lateral movement thereof, so that the waste ink transfer and collection operation is continued, and the operation is sequentially repeated cyclically.

Claims

1. A waste toner collecting device of a printer, characterized by comprising:

a frame (10);

the waste ink transfer unit is arranged on the rack (10) and comprises a bearing frame (20) and a waste ink conveying belt (23), wherein the waste ink conveying belt (23) can be circularly and rotatably arranged on the bearing frame (20) so as to drive waste ink attached to the waste ink conveying belt (23) to be transferred to a waste ink collecting area;

a waste ink removing and collecting unit provided in a waste ink collecting region of the frame (10) for removing and collecting waste ink adhering to the waste ink transporting belt (23) from the waste ink transporting belt (23);

the transmission unit comprises an actuating piece (31), an elastic piece (32) and a transmission piece (33), wherein the actuating piece (31) is positioned on a traveling path of a carriage (60) of the printer, which is far away from a printing area, and can be contacted with the carriage (60) to transversely slide along with the carriage (60), the elastic piece (32) acts on the actuating piece (31), the actuating piece (31) always has a tendency of moving towards the position of the printing area when the elastic piece (32) is in an energy storage state, a power input end of the transmission piece (33) can be in transmission connection with the actuating piece (31), a power output end of the transmission piece (33) can be in transmission connection with a power input end of the waste ink transmission belt (23) so as to drive the waste ink transmission belt (23) to rotate, the transmission piece (33) is transversely movably arranged in the moving path of the actuating piece (31), can contact with the actuating member (31) and move together with the actuating member (31) when the actuating member (31) is away from the printing area, so that the power output end of the transmission member (33) is connected with the power input end of the waste ink conveyor belt (23), and can drive the transmission member (33) to move reversely when the actuating member (31) moves towards the printing area, so that the power output end of the transmission member (33) is separated from the power input end of the waste ink conveyor belt (23).

2. The waste toner collecting device for a printer according to claim 1, wherein: the two first brackets (11) are arranged on the frame (10) at intervals in the transverse direction, guide holes (110) which penetrate through the two first brackets (11) in the transverse direction are formed in the two first brackets, guide rods (311) which extend along the moving direction of the actuating piece (31) are arranged on two transverse sides of the actuating piece (31), and the two guide rods (311) of the actuating piece (31) can correspondingly penetrate through the guide holes (110) of the two first brackets (11) and are arranged on the two first brackets (11) in a sliding mode through the sliding fit of the guide rods (311) and the guide holes (110).

3. The waste toner collecting device for a printer according to claim 2, wherein: the elastic piece (32) is sleeved on the guide rod (311) by taking a first spring as a main body, a limiting piece (313) is arranged on the peripheral wall of the guide rod (311), the first end of the first spring abuts against the limiting piece (313), and the second end of the first spring abuts against the peripheral edge of the first guide hole (110) of the first support (11).

4. The waste toner collecting device for a printer according to claim 1, wherein: the actuating component (31) is provided with a strip-shaped rack (312) extending transversely, the transmission component (33) is a first gear which can be meshed with the strip-shaped rack (312) to form a power input end of the transmission component (33), the bearing frame (20) is provided with two rotating shafts (21) arranged at intervals, the waste ink conveyor belt (23) is arranged on the two rotating shafts (21) in a surrounding mode, one rotating shaft (21) is provided with a second gear (22) rotating coaxially with the rotating shaft (21) to form a power input end of the waste ink conveyor belt (23), and the first gear can be meshed with the second gear (22) to form a power output end of the transmission component (33).

5. The waste toner collecting device for a printer according to claim 4, wherein: the gear rack is characterized by further comprising a second support (12), wherein the second support (12) is provided with two strip-shaped grooves (120) which are oppositely arranged and extend in the transverse direction, the two axial ends of the first gear are provided with gear shafts (330), and the two gear shafts (330) of the first gear correspondingly penetrate through the two strip-shaped grooves (120) of the second support (12) so that the first gear is transversely and slidably arranged on the second support (12).

6. A waste toner collecting device for a printer according to any one of claims 1 to 5, wherein: the waste toner removing and collecting unit includes a scraper (41) and a waste toner collecting box (42) opened at the upper side, the waste toner collecting box (42) is positioned below the waste toner conveying belt (23), the scraper (41) is correspondingly arranged at the opening position of the waste toner collecting box (42), and the scraper (41) is contacted with the bottom surface of the waste toner conveying belt (23), so that the waste toner attached to the waste toner conveying belt (23) is scraped down to fall into the waste toner collecting box (42) during the relative movement of the scraper (41) and the waste toner conveying belt (23).

7. The waste toner collecting device for a printer according to claim 6, wherein: the scraper (41) extends upward from an opening edge of the waste toner collecting box (42) and is inclined toward a side facing away from a moving direction of the waste toner conveyance belt (23).

8. The waste toner collecting device for a printer according to claim 6, wherein: and a tension adjusting mechanism that is connected to the waste toner collecting tank (42) and is capable of driving the waste toner collecting tank (42) to move in the up-down direction, thereby pressing the waste toner conveyance belt (23) with a scraper (41) provided correspondingly to the waste toner collecting tank.

9. The waste toner collecting device for a printer according to claim 8, wherein said tension adjusting mechanism includes:

the limiting frame (13) is used for placing the waste ink collecting box (42) and comprises two vertical plates (131), and the two vertical plates (131) can be respectively restricted on two opposite sides of the waste ink collecting box (42);

the sliding block (51) is positioned below the bottom surface of the waste ink collecting box (42) and can be horizontally and slidably arranged on the rack (10), the upper surface of the sliding block (51) is a first wedge-shaped surface (510), and the first wedge-shaped surface (510) of the sliding block (51) is in sliding fit with a second wedge-shaped surface (420) correspondingly positioned on the bottom surface of the waste ink collecting box (42) to realize the up-and-down movement of the waste ink collecting box (42);

and the action end of the driving piece is connected with the sliding block (51), so that the sliding block (51) is driven to horizontally move relative to the rack (10).

10. The waste toner collecting device for a printer according to claim 9, wherein: the sliding block (51) is provided with a threaded hole (511), the rack (10) is provided with a positioning seat (52), the driving piece movably penetrates through an adjusting screw rod (53) on the positioning seat (52), the rod part of the adjusting screw rod (53) is connected with the threaded hole (511) of the sliding block (51) to form an acting end of the driving piece, the adjusting screw rod (53) is further sleeved with a second spring (54), two ends of the second spring (54) respectively abut against the sliding block (51) and the positioning plates, and therefore the sliding block (51) is always away from the positioning plates.