Ink scraping device with positioning adjusting mechanism

Abstract

An ink scraping device with a positioning adjusting mechanism comprises a fixed seat, a movable seat and a swing plate, two long adjusting holes are formed in the middle of the fixed seat side by side, a nut seat is arranged on the movable seat, and screws are installed between the long adjusting holes and the nut seat to lock the long adjusting holes and the nut seat; a lower support is arranged on the fixed seat above the long adjusting hole, a guide column is vertically mounted in the middle of the lower support, an upper support is arranged at the corresponding position of the upper end of the movable seat, a guide hole is formed in the upper support, and the guide column is slidably sleeved in the guide hole; the swing plate is hinged to one end of the movable plate through a transverse shaft, a scraper is installed on the inner side face of the swing plate, a driver is connected to one end of the swing plate, and the middle of the guide column is sleeved with a spring. The guide column of the device provides guidance for the movable seat, the accuracy of the adjusting position of the scraper blade is guaranteed, the spring is arranged to provide elastic supporting force to enable the scraper blade to rise automatically, and therefore the scraper blade can be adjusted conveniently and rapidly to adapt to height changes caused by abrasion, and the service life of the scraper blade is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of printers, in particular to an ink scraping device with a positioning and adjusting mechanism. Background Art

[0002] The ink scraping device of a printer is an important component in the printer. The ink scraping device scrapes off the excess ink on the print head through the contact between a scraping blade or an ink scraping strip and the print head, preventing the ink from drying up on the print head or blocking the nozzles, ensuring the uniform distribution of the ink on the print head, thereby improving the print clarity and color accuracy, and guaranteeing the print quality and effect.

[0003] This kind of ink scraping device usually includes a bracket and a scraping blade or an ink scraping strip that can move up and down. The scraping blade maintains an appropriate contact pressure with the print head through a driving mechanism and scrapes the ink as the print head moves. Currently, the ink scraping device mainly applies pressure to the scraping blade through the driving mechanism, but generally no limiting device is provided. Improper operation or malfunction is likely to cause the phenomenon that the pressure of the scraping blade is too large, resulting in damage to the print head. Moreover, the scraping blade will be worn after repeated ink scraping, resulting in an increase in the distance between it and the print head, affecting the ink scraping effect. Usually, this problem is solved by replacing the scraping blade, which is inconvenient to operate and will increase the use cost of the scraping plate, and thus needs to be improved. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model provides an ink scraping device with a positioning and adjusting mechanism.

[0005] The technical solution of the utility model is: an ink scraping device with a positioning and adjusting mechanism, which includes a fixed seat with a square plate structure, a movable seat with an L-shaped plate structure, and a swing plate; two adjusting long holes are vertically arranged side by side in the middle of the fixed seat, and there is a certain distance between the two adjusting long holes. A nut seat corresponding to the position of the adjusting long hole is arranged on the movable seat, and a screw is installed between the adjusting long hole and the nut seat to lock the two. A card slot is arranged on the surface of the nut of the screw; and a lower support is vertically arranged on the fixed seat above the adjusting long hole. A guide post is vertically installed in the middle of the lower support, and the guide post is connected to the lower support through a thread. An upper support is arranged at the corresponding position at the upper end of the movable seat, and a guide hole is arranged on the upper support. The guide post is slidably sleeved in the guide hole, and the upper end of the guide post extends out of the guide hole for a certain distance; the swing plate is hinged to one end of the movable plate through a cross shaft, a scraping blade is installed on the inner side surface of the swing plate, the scraping blade extends upward out of the upper surface of the swing plate, and one end of the swing plate is connected with a driver.

[0006] Preferably, a spring is sleeved in the middle of the guide post, the upper end of the spring supports on the bottom surface of the upper support, and the lower end supports on the surface of the lower support.

[0007] Preferably, the driver is an electromagnet, which is connected to the movable seat through a long hole and a screw for adjusting the height of the electromagnet. The electromagnet is fixedly connected to the movable seat. A long round hole is provided at the end of the swing plate, and a horizontal shaft is provided at the upper end of the core shaft of the electromagnet, and the horizontal shaft is slidably connected to the long round hole.

[0008] Preferably, a lower limit flanging is vertically provided at the other end of the swing plate, and an upper limit flanging A is vertically provided at the corresponding position of the movable seat.

[0009] Preferably, one end of the swing plate is provided with an inclined edge, and an upper limit flanging B is provided on the movable seat above the inclined edge.

[0010] Preferably, the scraper is fixed on the inner side of the swing plate through a pressing piece. The scraper is pressed and fixed on the inner side of the swing plate through the pressing piece, and the pressing piece and the swing plate are fixedly connected by screws.

[0011] Preferably, a square waste ink cartridge is installed on the fixed seat below the scraper, and the length of the waste ink cartridge is greater than the length of the scraper.

[0012] Preferably, a sponge is placed in the waste ink cartridge. The size of the sponge matches the size of the waste ink cartridge, and the thickness of the sponge is less than the depth of the waste ink cartridge.

[0013] Preferably, the scraper is a rubber plate. A folded edge is provided at the upper end of the scraper, and a plurality of round holes are evenly provided on the swing plate.

[0014] The beneficial technical effects of the present utility model are:

[0015] (1) The device designs a combined support with the fixed seat and the movable seat connected. After loosening the screws between the two, the height of the movable seat can be adjusted. A guide post is provided to provide guidance for the movable seat to ensure the accuracy of the adjustment position of the scraper, and a spring is provided to provide an elastic supporting force to automatically raise the scraper. Therefore, the scraper can be conveniently and quickly adjusted to adapt to the height change caused by wear, and the service life of the scraper is improved.

[0016] (2) The device involves limit flangings between both ends of the swing plate and both ends of the movable plate. The limit flangings provide limits for the scraper, which can avoid the phenomenon that the scraper pressure is too large and damages the print head due to improper operation or failure. Description of the Drawings

[0017] Figure 1 is one of the three-dimensional structure schematic diagrams of the device;

[0018] Figure 2 is Figure 1 the sectional structure schematic diagram in the A-A direction of

[0019] Figure 3It is the second three-dimensional structure schematic diagram of the device;

[0020] Figure 4 It is the third three-dimensional structure schematic diagram of the device;

[0021] Figure 5 It is the three-dimensional structure schematic diagram of the movable plate, swing plate and scraper of the device.

[0022] In the figure, 01. Fixed seat, 11. Adjusting long hole, 02. Movable seat, 21. Nut seat, 22. Screw, 23. Upper support, 24. Upper limit flanging A, 25. Upper limit flanging B, 03. Swing plate, 31. Lower support, 311. Guide post, 312. Spring, 32. Horizontal axis, 33. Scraper, 331. Pressure plate, 34. Long circular hole, 35. Lower limit flanging, 36. Hypotenuse, 41. Electromagnet, 411. Core shaft, 51. Waste ink cartridge, 511. Sponge. Specific implementation mode

[0023] Example 1, see the attached instructions Figures 1-5 A scraping device with a positioning and adjusting mechanism, including a fixed seat 01 with a square plate structure, a movable seat 02 with an L-shaped plate structure and a swing plate 03; two adjusting long holes 11 are arranged vertically and side by side in the middle of the fixed seat 01, and a nut seat 21 corresponding to the position of the adjusting long hole 11 is arranged on the movable seat 02. A screw 22 is installed between the adjusting long hole 11 and the nut seat 21 to lock the two. After loosening the screw 22, the locking of the fixed seat 01 and the movable seat 02 is released. Under the action of the adjusting long hole 11, the height of the movable plate can be adjusted, and then the height of the scraper 33 can be adjusted; the swing plate 03 is hinged to one end of the movable plate through a horizontal axis 32, and the swing plate 03 can swing up and down with the horizontal axis 32 as the fulcrum. A scraper 33 is installed on the inner side surface of the swing plate 03, and the scraper 33 is fixed on the inner side surface of the swing plate 03 through a pressing piece, and the pressing piece and the swing plate 03 are fixedly connected through a screw 22.

[0024] One end of the swing plate 03 is connected with a driver, the driver is an electromagnet 41, the electromagnet 41 is fixedly connected with the movable seat 02, a long circular hole 34 is arranged at the end of the swing plate 03, the long circular hole 34 is arranged along the length direction of the swing plate 03, and the upper end of the core shaft 411 of the electromagnet 41 is slidably connected with the long circular hole 34. The swing plate 03 is driven by the electromagnet 41 to swing up and down with the horizontal axis 32 as the fulcrum.

[0025] As Figure 3As shown in the figure, a space is formed on the fixed seat 01 between the movable seats 02 with an L-shaped plate structure. An ink waste cartridge 51 is installed in this space. The length of the ink waste cartridge 51 is greater than the length of the squeegee 33, ensuring that it can hold the ink scraped off by the squeegee 33. A sponge 511 is placed in the ink waste cartridge 51, and the size of the sponge 511 matches the size of the ink waste cartridge 51. The sponge 511 absorbs and fixes the ink, avoiding the phenomenon of ink splashing caused by shaking when the ink cartridge is full and disassembled.

[0026] The squeegee 33 is a rubber plate. The rubber material has a certain flexibility to avoid scratching the print head. A number of round holes are evenly arranged on the swing plate 03 to reduce the self-weight of the swing plate 03.

[0027] Embodiment 2, see the attached instructions Figures 1-2 In this embodiment, it is basically the same as Embodiment 1, and the same parts will not be described again. The difference is that a lower support 31 is provided on the fixed seat 01 above the adjustment long hole 11. A guide post 311 is vertically installed in the middle of the lower support 31. At the corresponding position at the upper end of the movable seat 02, an upper support 23 is provided. A guide hole is provided on the upper support 23, and the guide post 311 is slidably sleeved in the guide hole. The distance from the end of the guide post 311 extending out of the guide hole is the height adjustment range of the movable seat 02. When loosening the screw 22 to adjust the height of the movable seat 02, the guide post 311 and the guide hole can provide guidance for the movable seat 02, ensuring the accuracy of the adjustment position of the squeegee 33 and avoiding position deviation after adjustment; A spring 312 is sleeved in the middle of the guide post 311. The upper end of the spring 312 supports on the bottom surface of the upper support 23, and the lower end supports on the surface of the lower support 31. The elastic support force provided by the spring 312 can make the squeegee 33 automatically rise, facilitating the adjustment of the squeegee 33 to adapt to the height change caused by wear and improving the service life of the squeegee 33.

[0028] Embodiment 2, see the attached instructions Figures 3-4 In this embodiment, it is basically the same as Embodiment 1, and the same parts will not be described again. The difference is that a lower limit flanging 35 is provided at the other end of the swing plate 03, and a corresponding upper limit flanging A 24 is provided on the movable seat 02. When the swing plate 03 and the squeegee 33 are driven by the electromagnet 41 to rise and scrape the ink by the lever principle, the lower limit flanging 35 will contact the upper limit flanging A 24 to provide a limit for the squeegee 33, avoiding the phenomenon that the squeegee 33 is damaged due to excessive pressure caused by improper operation or failure; A bevel edge 36 is provided at one end of the swing plate 03, and an upper limit flanging B 25 is provided on the movable seat 02 above the bevel edge 36. When the squeegee 33 is reset after scraping the ink, the bevel edge 36 and the upper limit flanging B 25 are used to provide a limit for the reset, avoiding the phenomenon that the squeegee 33 swings downward too much and damages the components such as the ink waste cartridge 51 below.

Claims

1. An ink scraping device with a positioning and adjusting mechanism, characterized in that: It includes a fixed seat with a square plate structure, a movable seat with an L-shaped plate structure and a swinging plate; two adjusting long holes are arranged vertically side by side in the middle of the fixed seat, a nut seat corresponding to the position of the adjusting long holes is arranged on the movable seat, and screws are installed between the adjusting long holes and the nut seat to lock the two; a lower support is arranged on the fixed seat above the adjusting long holes, a guide column is vertically installed in the middle of the lower support, an upper support is arranged at a corresponding position on the upper end of the movable seat, a guide hole is arranged on the upper support, and the guide column is slidably sleeved in the guide hole; the swinging plate is hinged to one end of the movable plate through a transverse axis, a scraper is installed on the inner side of the swinging plate, and a driver is connected to one end of the swinging plate.

2. The ink scraping device with a positioning and adjusting mechanism according to claim 1, characterized in that: A spring is sleeved on the middle part of the guide column, the upper end of the spring is supported on the bottom surface of the upper support, and the lower end of the spring is supported on the surface of the lower support.

3. The ink scraping device with a positioning and adjusting mechanism according to claim 1, characterized in that: The driver is an electromagnet, which is fixedly connected to the movable seat. An oblong hole is arranged at the end of the swing plate, and the upper end of the core shaft of the electromagnet is slidably connected to the oblong hole.

4. The ink scraping device with a positioning and adjusting mechanism according to claim 1, characterized in that: The other end of the swing plate is provided with a lower limit flange, and the corresponding position of the movable seat is provided with an upper limit flange.

5. The ink scraping device with a positioning and adjusting mechanism according to claim 1, characterized in that: One end of the swing plate is provided with a bevel, and an upper limit flange B is provided on the movable seat above the bevel.

6. The ink scraping device with a positioning and adjusting mechanism according to claim 1, characterized in that: The scraper is fixed on the inner side of the swing plate through a pressing sheet, and the pressing sheet and the swing plate are fixedly connected by screws.

7. The ink scraping device with a positioning and adjusting mechanism according to claim 1, characterized in that: A waste ink box is installed on the fixed seat below the scraper, and the length of the waste ink box is greater than the length of the scraper.

8. The ink scraping device with a positioning and adjusting mechanism according to claim 7, characterized in that: A sponge is placed in the waste ink box, and the size of the sponge matches the size of the waste ink box.

9. The ink scraping device with a positioning and adjusting mechanism according to claim 1, characterized in that: The scraper is a rubber plate, and a plurality of round holes are evenly arranged on the swing plate.

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