Ink scraping device of packaging bag printing machine

Abstract

The utility model discloses an ink scraping device of a packaging bag printing machine. The ink scraping device comprises two ink scraping blades, a mounting roller and a pushing mechanism. The doctor blade comprises a blade head and a blade handle which are connected with each other; a connecting blade for fixing a knife handle is formed on the roller surface of the mounting roller, the mounting roller is rotatably connected to the two bearings, stop screws are arranged on the bearings, and a rotating handle is arranged on the mounting roller; the pushing mechanism comprises two guide rails, two sliding blocks, a linkage support and a pushing rod, the two guide rails are locked and attached to the two sides of the machine table respectively, the bearings are locked and attached to the corresponding sliding blocks, the two ends of the linkage support are connected with the sliding blocks, and the pushing rod is used for driving the linkage support and the two sliding blocks to slide along the guide rails and driving the mounting roller and the two ink scraping blades on the mounting roller to move front and back. When one doctor blade is used, the current doctor blade in contact with the inking roller is withdrawn, the other doctor blade is switched by rotating the handle, the ink scraping operation continues, the replacement time is shortened, the previously used doctor blades can be dismounted in order, normal inking is not affected, and the operation efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag printing machines, in particular to an ink scraping device of the packaging bag printing machine. Background Art

[0002] The packaging bag printing machine is an important equipment in modern packaging production. It realizes the beauty and functionality of the packaging by printing patterns, text and other information on the packaging bag. The packaging bag printing machine often adopts the gravure printing machine.

[0003] During printing, the printing plate is completely immersed in the ink tank. After the ink fills the concave part of the printing plate, the scraper scrapes away the excess ink on the surface of the inking roller except for the gravure. The film directly contacts the printing plate through the impression cylinder and transfers the ink to the film. The scraper is in contact with the inking roller for a long time. After long-term use, a large amount of excess ink will be adhered to the scraper. The scraper needs to be replaced and cleaned and maintained to prevent a large amount of ink from adhering and accumulating and affecting the printing process. The scraper needs to be kept sufficiently stable in its installation structure. Disassembling and replacing the scraper is cumbersome and time-consuming, which will affect the operating efficiency of the packaging bag printing machine and is not conducive to large-scale production. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide an ink scraping device for a packaging bag printing machine to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides an ink scraping device for a packaging bag printing machine, comprising two ink scraping blades, a mounting roller, and a pushing mechanism. The ink scraping blades comprise a blade head and a handle connected to each other; a roller surface of the mounting roller is formed with connecting blades corresponding to the ink scraping blades; the handles of the ink scraping blades are fixed to the connecting blades; the two connecting blades are spaced apart along the circumference of the mounting roller; the ends of the mounting roller are rotatably connected to two bearings, the bearings are provided with stop screws, and the mounting roller is provided with a rotating handle for driving the mounting roller to rotate; the pushing mechanism comprises two guide rails, two sliders, a linkage bracket, and a pushing rod; the two guide rails are respectively locked to two sides of a machine platform of the packaging bag printing machine; the sliders are slidably connected along the guide rails; the two bearings are respectively locked to the sliders on the corresponding sides; the two ends of the linkage bracket are connected to the two sliders; the pushing rod is fixed to the linkage bracket and is used to drive the linkage bracket and the two sliders to slide along the guide rails, thereby driving the mounting roller and the two ink scraping blades thereon to move forward and backward.

[0007] Preferably, a slot engaged with the connecting blade is provided on the inner side of the handle of the scraper, and a plurality of screw holes passing through the slot of the handle and the connecting blade are provided on the handle along its length so as to lock the handle and the connecting blade by screws.

[0008] Preferably, the rotating handle is sleeved on one end of the mounting roller adjacent to the bearing through an integrally formed connecting ring.

[0009] Preferably, the linkage bracket includes two longitudinal connecting plates and a linkage beam, the longitudinal connecting plates extend along the length direction of the guide rail, the linkage beam is fixedly connected between the two longitudinal connecting plates, and the push rod is fixed in the central area of the linkage beam.

[0010] Preferably, there are two rotating handles, which are respectively located at two corresponding ends of the mounting roller, and the two rotating handles are not parallel to each other.

[0011] Preferably, the ink scraping device further includes a stepping motor, and the pushing rod is connected to the output shaft of the stepping motor.

[0012] Preferably, the bottom surface of the blade head of the ink scraper is connected to a grabbing and buckling rod, and the grabbing and buckling rod extends perpendicularly to the bottom surface of the blade head. There are two grabbing and buckling rods, which are arranged in parallel in the central area of the bottom surface of the blade head.

[0013] The technical effects achieved by the technical solution of this utility model mainly include:

[0014] The ink scraping device of the above-mentioned packaging bag printing machine realizes the switching of the ink scrapers by rotation by setting two ink scrapers on the mounting roller, and controls the contact and withdrawal of the ink scraper and the inking roller of the packaging bag printing machine with the help of the cooperation of the pushing mechanism. Since the other ink scraper can be quickly replaced to continue the ink scraping operation, it does not affect the normal inking of the packaging bag printing machine. After that, the previously used ink scraper can be removed in an orderly manner. Therefore, the downtime of the packaging bag printing machine caused by the need to replace the ink scraper can be saved, the frequency of replacing the ink scraper can be reduced, the working efficiency can be improved, and it is conducive to continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the ink scraping device of the packaging bag printing machine provided by the utility model;

[0016] Figure 2 for Figure 1 A partial enlarged view of the circular dotted box area A;

[0017] Figure 3 It is a schematic diagram of another embodiment of the pushing mechanism in the ink scraping device.

[0018] The reference numerals in the above drawings are:

[0019] Scraper 1, blade head 11, grabbing and buckling rod 111, blade handle 12;

[0020] Install the roller 2, the connecting blade 21, the bearing 22, the set screw 23, the rotating handle 24, and the connecting ring 241;

[0021] Pushing mechanism 3, guide rail 31, slider 32, linkage bracket 33, longitudinal connecting plate 331, linkage beam 332, pushing rod 34;

[0022] Stepper motor 4. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the present invention more apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the present invention shown in and described with reference to the accompanying drawings are merely exemplary, and the present invention is not limited to these embodiments.

[0024] In order to avoid obscuring the present invention due to unnecessary details, the drawings only show structures and / or processing steps closely related to the solutions according to the present invention, while other less relevant details are omitted.

[0025] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides an ink scraping device for a packaging bag printing machine, which includes two ink scraping blades 1, a mounting roller 2 and a pushing mechanism 3.

[0026] The ink scraper 1 includes a blade head 11 and a blade handle 12 connected to each other;

[0027] The roller surface of the mounting roller 2 is formed with connecting blades 21 corresponding to the ink scraper 1 one by one. The handle 12 of the ink scraper 1 is fixed on the connecting blade 21. The two connecting blades 21 are arranged at intervals along the circumference of the mounting roller 2. The two ends of the mounting roller 2 are rotatably connected to two bearings 22. The bearings 22 are provided with stop screws 23. The mounting roller 2 is provided with a rotating handle 24 for driving the rotation of the mounting roller 2.

[0028] The pushing mechanism 3 includes two guide rails 31, two sliders 32, a linkage bracket 33 and a pushing rod 34. The two guide rails 31 are used to be locked on both sides of the machine table of the packaging bag printing machine respectively. The sliders 32 are slidably connected along the guide rails 31. The two bearings 22 are respectively locked on the sliders 32 on the corresponding sides. The two ends of the linkage bracket 33 are connected to the two sliders 32. The pushing rod 34 is fixed on the linkage bracket 33 and is used to drive the linkage bracket 33 and the two sliders 32 to slide along the guide rails 31, so as to drive the mounting roller 2 and the two scrapers 1 thereon to move back and forth.

[0029] Based on the ink scraping device of the packaging bag printing machine provided by the embodiment of the present invention, when it is necessary to replace the ink scraper 1 currently in contact with the inking roller of the packaging bag printing machine, the push rod 34 can be pulled to make the linkage bracket 33 and the two sliders 32 slide along the guide rail 31, thereby driving the mounting roller 2 and the two ink scrapers 1 thereon to move backward, and the ink scraper 1 in use withdraws from the contact with the inking roller, and then loosens the stop screw 23 of the bearing 22 to release the rotation angle lock of the mounting roller 2, and the rotating handle 24 can be turned to rotate the mounting roller 2, driving the two ink scrapers 1 to rotate along the circumference of the mounting roller 2 until the other ink scraper 1 reaches The required angular position is achieved to realize the replacement of the scraper blade 1, switch the scraper blade 1 to be used, tighten the stop screw 23 to lock the state of the mounting roller 2 after rotation, and then push the push rod 34 again to move the switched scraper blade 1 to contact the inking roller, and limit the continued movement of the slider 32 through the stop assembly provided on the slider 32 and the linkage bracket 33 to continue the ink scraping operation, shortening the downtime of the packaging bag printing machine caused by the need to replace the scraper blade 1, saving the frequency of replacing the scraper blade 1, and thereafter, the previously used scraper blade 1 can be disassembled in an orderly manner without affecting the normal inking of the packaging bag printing machine, thereby effectively improving the operating efficiency.

[0030] During the inking operation, the ink scraper 1 abuts against the surface of the inking roller of the packaging bag printing machine. As the packaging bag printing machine runs for a long time, if the ink scraper 1 cannot remain sufficiently stable in the mounting structure, the blade head 11 may deviate, affecting the ink scraping effect of the ink scraper 1. Therefore, in this embodiment, the inner side of the handle 12 of the ink scraper 1 is provided with a slot that fits with the connecting blade 21. The handle 12 is provided with multiple screw holes along its length that pass through the slot of the handle 12 and the connecting blade 21, so as to lock the handle 12 and the connecting blade 21 by screws. It is precisely because of the need to set up the above-mentioned stable ink scraper 1 mounting structure that disassembling and replacing the ink scraper 1 is relatively cumbersome and time-consuming, and it is necessary to utilize the ink scraping device provided by the embodiment of the utility model.

[0031] In order to facilitate the operator to turn the rotating handle 24 and avoid being hindered by other structures when turning the rotating handle 24, the rotating handle 24 is sleeved on one end of the mounting roller 2 adjacent to the bearing 22 through an integrally formed connecting ring 241.

[0032] Reference Figure 3 As shown, specifically, the linkage bracket 33 includes two longitudinal connecting plates 331 and a linkage beam 332, the longitudinal connecting plates 331 extend along the length direction of the guide rail 31, the linkage beam 332 is fixedly connected between the two longitudinal connecting plates 331, and the push rod 34 is fixed in the central area of the linkage beam 332.

[0033] In this embodiment, there are two rotating handles 24, one at each end of the mounting roller 2. The two rotating handles 24 are non-parallel to each other, that is, they extend in different directions on the mounting roller 2. This allows the operator to easily select the rotating handle 24 that is most convenient for grasping based on the current rotational position of the mounting roller 2.

[0034] Reference Figure 3 As shown, the ink scraping device also includes a stepper motor 4, and the push rod 34 is connected to the output shaft of the stepper motor 4. The stepper motor 4 is used to realize the linkage bracket 33 to drive the movement of the installation roller 2 and the two ink scrapers 1 thereon, saving human resources. During installation, the stepper motor is arranged according to the structural space of the packaging bag printing machine to complete the above-mentioned movement of the driving push rod 34.

[0035] Because the blade head 11 of the ink scraper 1 is relatively sharp and can become sticky with a large amount of ink, it is inconvenient to directly touch the blade head 11 of the ink scraper 1 during disassembly. Furthermore, a gripping and buckling rod 111 is connected to the bottom surface of the blade head 11 of the ink scraper 1. The gripping and buckling rod 111 extends perpendicularly from the bottom surface of the blade head 11. There are two gripping and buckling rods 111, which are arranged in parallel in the central area of the bottom surface of the blade head 11. The gripping and buckling rods 111 provide a position for a gripping tool to grip the blade head 11, thereby improving replacement efficiency and preventing contamination by sticky ink.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0037] The above is only a specific implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A scraping device for a packaging bag printing machine, characterized in that: include: Two scrapers (1), each of the scrapers (1) comprising a blade head (11) and a blade handle (12) connected to each other; A mounting roller (2), wherein a connecting blade (21) corresponding to the ink scraper (1) is formed on the roller surface of the mounting roller (2), a handle (12) of the ink scraper (1) is fixed on the connecting blade (21), two connecting blades (21) are arranged at intervals along the circumference of the mounting roller (2), two ends of the mounting roller (2) are rotatably connected to two bearings (22), the bearings (22) are provided with stop screws (23), and a rotating handle (24) is provided on the mounting roller (2) for driving the rotation of the mounting roller (2); A pushing mechanism (3) includes two guide rails (31), two sliders (32), a linkage bracket (33) and a pushing rod (34). The two guide rails (31) are respectively locked on both sides of the machine platform of the packaging bag printing machine. The sliders (32) are slidably connected along the guide rails (31). Two bearings (22) are respectively locked on the sliders (32) on the corresponding sides. The two ends of the linkage bracket (33) are connected to the two sliders (32). The pushing rod (34) is fixed on the linkage bracket (33) and is used to drive the linkage bracket (33) and the two sliders (32) to slide along the guide rails (31) to drive the mounting roller (2) and the two scrapers (1) thereon to move forward and backward.

2. The ink scraping device of the packaging bag printing machine according to claim 1, characterized in that: The inner side of the handle (12) of the scraper (1) is provided with a slot that fits with the connecting blade (21), and the handle (12) is provided with a plurality of screw holes that pass through the slot of the handle (12) and the connecting blade (21) along its length direction, so that the handle (12) and the connecting blade (21) are locked by screws.

3. The ink scraping device of the packaging bag printing machine according to claim 1, characterized in that: The rotating handle (24) is sleeved on one end of the mounting roller (2) adjacent to the bearing (22) via an integrally formed connecting ring (241).

4. The ink scraping device of the packaging bag printing machine according to claim 1, characterized in that: The linkage bracket (33) includes two longitudinal connecting plates (331) and a linkage beam (332), wherein the longitudinal connecting plates (331) extend along the length direction of the guide rail (31), the linkage beam (332) is fixedly connected between the two longitudinal connecting plates (331), and the push rod (34) is fixed in the central area of the linkage beam (332).

5. The ink scraping device of the packaging bag printing machine according to claim 3, characterized in that: There are two rotating handles (24), which are respectively located at the corresponding two ends of the mounting roller (2), and the two rotating handles (24) are not parallel to each other.

6. The ink scraping device of the packaging bag printing machine according to claim 1, characterized in that: The ink scraping device further comprises a stepping motor (4), and the pushing rod (34) is connected to the output shaft of the stepping motor (4).

7. The ink scraping device of the packaging bag printing machine according to claim 1, characterized in that: The bottom surface of the blade head (11) of the ink scraper (1) is connected to a grabbing and buckling rod (111), and the grabbing and buckling rod (111) extends perpendicularly to the bottom surface of the blade head (11). There are two grabbing and buckling rods (111) arranged in parallel in the central area of the bottom surface of the blade head (11).

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