Ink blade locking device

Abstract

The utility model relates to an ink knife locking device which comprises an ink knife base, an ink knife set and an installation plate, the ink knife set is installed on the ink knife base, the ink knife base is rotatably hinged to the installation plate, the device further comprises a four-bar mechanism and a shaft seat connected to the installation plate in a sliding mode, and a rotating shaft of the ink knife base is rotatably supported in the shaft seat. The ink fountain has the beneficial effects that an original only-rotating structure is replaced by a rotating and sliding structure between the ink base and the mounting plate, the ink knife set is turned over and moves towards the outer side at the same time, the distance between the ink knife set and the ink fountain roller is increased, and cleaning and maintenance are convenient.

Description

Technical Field

[0001] This utility model belongs to the field of digital inkjet printing equipment technology, and in particular relates to an ink knife locking device. Background Technology

[0002] When the existing ink knife locking mechanism is unlocked, the distance between the ink knife assembly blade and the ink fountain roller is small after the ink knife base flips over. This results in insufficient space for cleaning operations, incomplete cleaning, and ink accumulation under the ink knife assembly. Over time, this can obstruct the back-and-forth movement of the ink knife and lead to various malfunctions. Summary of the Invention

[0003] To address the problems existing in the prior art, this utility model provides an ink knife locking device, which is achieved through the following technical solution:

[0004] The ink knife locking device includes: an ink knife base, an ink knife assembly, and a mounting plate. The ink knife assembly is mounted on the ink knife base, and the ink knife base is rotatably hinged to the mounting plate. The device also includes a four-bar linkage and a shaft seat slidably connected to the mounting plate. The rotating shaft of the ink knife base is rotatably supported in the shaft seat. The ink knife base is slidably and rotatably connected to the mounting plate through the four-bar linkage.

[0005] A further design of the ink knife locking device is that the four-bar linkage includes a handle seat connected to a handle and hinged to a mounting plate, a locking link, a locking link plate fixed to the ink knife base, and a mounting plate rocker arm hinged to the mounting plate. One end of the locking link plate is hinged to the free end of the mounting plate rocker arm; the two ends of the locking link are respectively hinged to the handle seat and the other end of the locking link plate.

[0006] A further design of the ink knife locking device is that a groove is provided on the mounting plate, and the shaft seat is slidably disposed in the groove.

[0007] A further design of the ink knife locking device is that the channel is a rectangular channel, the bearing seat is a rectangular block adapted to the channel, and the rectangular block is provided with a circular blind hole for hinged ink knife base shaft.

[0008] A further design feature of the ink knife locking device is that a pressure pad is provided in the gap between the rectangular block and the rectangular channel.

[0009] A further design of the ink knife locking device is that the handle seat is fork-shaped, a bushing is threaded through the waist of the handle seat, and the locking linkage is hinged to the handle seat by connecting with the bushing.

[0010] A further design of the ink knife locking device is that the locking link passes through the bushing, and a fixing nut is screwed onto one end of the bushing. A disc spring is sleeved between the fixing nut and the bushing.

[0011] A further design of the ink knife locking device is that it also includes a limiting mechanism, which is a bolt inserted into the mounting plate, and the bolt abuts against the extreme positions of the shaft seat and the handle seat respectively. Beneficial effects

[0012] The ink knife locking device of this utility model replaces the original rotating structure with a rotating and sliding structure between the ink base and the mounting plate. While flipping the ink knife assembly, it moves it outward, increasing the distance between the ink knife assembly and the ink fountain roller. This makes cleaning easier, maintenance easier, and reduces ink accumulation. It also protects the area below the ink knife blade, thereby extending the service life of the entire product. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the ink knife assembly and ink fountain roller.

[0014] Figure 2 This is a schematic diagram of the four-bar linkage and the mounting plate.

[0015] Figure 3 This is a schematic diagram of a four-bar linkage in the locked state.

[0016] Figure 4 This is a schematic diagram of a four-bar linkage in the unlocked state. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1 , Figure 2 The ink scalpel locking device of this embodiment mainly consists of an ink scalpel base 1, an ink scalpel assembly 5, and a mounting plate 3. The ink scalpel assembly 5 is mounted on the ink scalpel base 1, and the ink scalpel base 1 is rotatably hinged to the mounting plate 3. The mounting plate 3 has mounting holes 31, and bolts are inserted into the mounting holes 31 to achieve fixation to the frame. The device also includes a four-bar linkage 2 and a bearing 4 slidably connected to the mounting plate. The rotating shaft of the ink scalpel base 1 is rotatably supported in the bearing 4, and the ink scalpel base 1 is slidably and rotatably connected to the mounting plate through the four-bar linkage 2.

[0019] like Figure 2 The four-bar linkage 2 in this embodiment consists of a handle seat 21 connected to a handle 211 and hinged to a mounting plate, a locking link 24, a locking link plate 23 fixed to the ink knife base, and a mounting plate rocker arm 22 hinged to the mounting plate. One end of the locking link plate 23 is hinged to the free end of the mounting plate rocker arm 22. Both ends of the locking link 24 are respectively hinged to the other end of the locking link plate 23 and the handle seat 21.

[0020] The mounting plate 3 has a groove 32, and the bearing seat 4 is slidably disposed in the groove 32.

[0021] The channel 32 is a rectangular channel, and the bearing 4 is a rectangular block adapted to the channel. The rectangular block has a circular blind hole for hinged connection of the ink knife base shaft. A pressure plate 33 is provided between the rectangular block and the rectangular channel. (See [reference]). Figure 2 .

[0022] The handle seat 21 is fork-shaped, and a bushing 212 is threaded through the waist of the handle seat 21. See [reference needed]. Figure 1 The locking link 24 is hinged to the handle seat 21 by connecting to the bushing 212. The locking link 24 passes through the bushing 212, and a fixing nut 214 is screwed onto one end of the bushing. A disc spring 214 is sleeved between the fixing nut 214 and the bushing 212. The disc spring 214 is mainly used to adjust the clamping strength of the locking link 24 when the ink knife locking device is in the locked state. If the clamping strength is too small, it can be adjusted by increasing the number of disc springs, and vice versa.

[0023] The ink knife locking device in this embodiment also includes a limiting mechanism, which is a bolt 7 inserted into the mounting plate. The bolt 7 abuts against the extreme positions of the shaft seat and the handle seat respectively.

[0024] like Figure 3 In the diagram, the four-bar linkage 2 automatically reaches a stable state after passing the dead point lock, completing the locking of the ink knife assembly. The limiting mechanism prevents the handle seat 21 from pressing down further. During unlocking, the ink knife base 1 rotates downward under the drive of the locking linkage plate 23. The shaft seat 4 slides towards the other side of the groove 32 under the force driven by the ink knife base 1 until the shaft seat 4 abuts against the groove wall, reaching a stable state of complete unlocking. At this time, the distance between the ink knife assembly 5 and the ink fountain roller 6 reaches its maximum, facilitating the cleaning of the ink knife edge.

[0025] To ensure synchronous rotation at both ends of the spindle of the ink knife base 1, the ink knife locking device in this embodiment has two sets of four-bar linkages and shaft seats 4, respectively located on both sides of the ink knife base 1. See [link to relevant documentation]. Figure 1 .

[0026] When the ink knife locking device of this embodiment was tested on the existing J98 inkjet printing equipment, the distance between the ink knife assembly blades and the ink fountain roller in the cleaning position (locked down) increased from the original 31mm to 73mm. This provides ample space, facilitating the cleaning of accumulated ink while also allowing for the immediate application of grease after cleaning. Furthermore, the repeatability of the locking device was measured during testing and remained within 0.01mm, meeting the usage requirements.

[0027] The technical solutions of this utility model are not limited to the above embodiments. All technical solutions obtained by equivalent substitution fall within the scope of protection claimed by this invention.

Claims

1. An ink blade locking device, comprising: The ink knife base, the ink knife group and the mounting plate, the ink knife group is installed on the ink knife base, the ink knife base is rotatably hinged on the mounting plate, characterized in further comprising four-bar linkage and the shaft seat slidably connected to the mounting plate, the rotating shaft of the ink knife base is rotatably supported in the shaft seat, and the ink knife base is slidably and rotatably connected with the mounting plate through the four-bar linkage.

2. The dampening blade locking device of claim 1, wherein The four-bar linkage comprises a handle seat connected with a handle and hinged to the mounting plate, a locking link, a locking link plate fixed to the ink knife base and a mounting plate rocker arm hinged to the mounting plate, one end of the locking link plate is hinged to the free end of the mounting plate rocker arm, and the two ends of the locking link are respectively hinged to the handle seat and the other end of the locking link plate.

3. The dampening blade locking device of claim 1, wherein The mounting plate is provided with a channel, and the shaft seat is slidably arranged in the channel.

4. The dampening blade locking device of claim 3, wherein The channel is a rectangular channel, the shaft seat is a rectangular block matched with the channel, and a circular blind hole for hinging the rotating shaft of the ink knife base is formed in the rectangular block.

5. The dampening blade locking device of claim 4, wherein The gap between the rectangular block and the rectangular channel is provided with a pressure pad.

6. The dampening blade locking device of claim 2, wherein The handle seat is fork-shaped, a shaft sleeve is threaded through the waist of the handle seat, and the locking link is hinged to the handle seat by being connected with the shaft sleeve.

7. The dampening blade locking device of claim 6, wherein The locking link is threaded through the shaft sleeve, a fixed nut is screwed on the end of the locking link extending out of the shaft sleeve, and a disc spring is sleeved between the fixed nut and the shaft sleeve.

8. The dampening blade locking device of claim 2, wherein Further comprising a limiting mechanism, the limiting mechanism is a bolt inserted into the mounting plate, and the bolt respectively abuts against the limit position of the shaft seat and the handle seat.

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