Printing ink scraper structure for screen printing machine

Abstract

The utility model relates to a printing ink scraper structure for a screen printing machine, and aims to solve the technical problems that the precision of current manual adjustment is not high, a group of adjusting rods are difficult to accurately rotate and adjust to the same horizontal line through manual operation because the adjusting rods are in threaded connection with a sleeve, the scraper is easy to slightly incline, and the printing quality is influenced. Comprising a screen printing machine rack, a sliding frame is clamped in the screen printing machine rack, a first air cylinder is connected to the top of the sliding frame, a support is connected to the movable end of the first air cylinder, an ink covering blade mechanism is arranged behind the inner side of the support, a scraper mechanism is arranged in front of the ink covering blade mechanism, and a convenient mechanism is arranged on the surface of the scraper mechanism. The driving wheel is effectively driven by the motor to rotate, so that the driven wheel is driven to rotate, the shaft rod, the limiting groove frame and the scraper body are further driven to perform angle deviation, the scraper body can be adjusted more finely in height, manual operation is not needed, and adjusting errors are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing machines, in particular to an ink scraper structure for a screen printing machine. Background Art

[0002] When the screen printer is printing, the substrate is placed on the printing platform, and the printing is carried out based on the basic principle that the mesh holes of the image part of the screen printing plate are permeable to ink, while the mesh holes of the non-image part are not permeable to ink. Ink is poured into one end of the screen printing plate, and the inking knife evenly spreads the ink on the screen. At this time, the inking knife has moved to the other end of the screen printing plate, and then the scraper moves toward the initial position of the screen printing plate and applies a certain pressure to the ink on the screen printing plate. During the movement, the ink is squeezed from the mesh holes of the image part by the printing scraper onto the substrate.

[0003] Patent No. CN217415201U discloses an ink scraper device for a screen printing machine, including a scraper mechanism and an ink return knife mechanism arranged in parallel with each other, the scraper mechanism and the ink return knife mechanism are respectively connected to a chassis located above through a scraper lifting shaft and an ink return knife lifting shaft, the scraper mechanism includes a horizontally arranged scraper lifting plate, a connecting frame is connected below the scraper lifting plate, a scraper is arranged on the connecting frame, and a scraper adjustment mechanism is also connected between the scraper lifting plate and the connecting frame, and the connecting frame can rise and approach or fall away from the scraper lifting plate. The utility model is provided with a scraper adjustment mechanism, and the scraper adjustment mechanism can be used to adjust the connecting frame to rise and approach or fall away from the scraper lifting plate, thereby adjusting the gap between the scraper lifting plate and the connecting frame, and fine-tuning the horizontal height of the scraper, thereby improving the operating accuracy.

[0004] However, the above-mentioned ink scraper device for screen printing machine still has the following disadvantages:

[0005] Although the above-mentioned ink scraper device converts the rotational rising or rotating descending movement of the adjusting rod into the vertical rising or descending movement of the top plate by manually rotating the rotating part, thereby driving the scraper to be fine-tuned, the manual adjustment accuracy is not high. Since the adjusting rod is threadedly connected to the sleeve, it is difficult to accurately rotate a group of adjusting rods to the same horizontal line through manual operation, which can easily cause the scraper to tilt slightly and affect the printing quality. In view of this, we propose an ink scraper structure for a screen printing machine. Utility Model Content

[0006] The utility model aims to overcome the shortcomings of the prior art, meet the actual needs, and provide an ink scraper structure for a screen printing machine to solve the current low manual adjustment accuracy. Since the adjustment rod is threadedly connected to the sleeve, it is difficult to accurately rotate a group of adjustment rods to the same horizontal line through manual operation, which easily causes the scraper to tilt slightly, affecting the printing quality. Technical problems.

[0007] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: designing an ink scraper structure for a screen printing machine, comprising a screen printing machine frame, a slide frame is clamped inside the screen printing machine frame, a first cylinder is connected to the top of the slide frame, a bracket is connected to the movable end of the first cylinder, an ink-covering knife mechanism is arranged at the rear of the inner side of the bracket, a scraper mechanism is arranged in front of the ink-covering knife mechanism, and a convenient mechanism is arranged on the surface of the scraper mechanism;

[0008] The scraper mechanism includes a motor, a driving wheel is connected to the movable end of the motor, a driven wheel is meshed on the side of the driving wheel, a group of limit plates are fixedly connected to the front end surface of the bracket, an axle rod passes through the inside of the limit plate, and one end of the axle rod close to the middle of the bracket is connected to a limit slot frame, and a scraper body is clamped inside the limit slot frame.

[0009] Preferably, the motor forms a transmission structure through a driving wheel and a driven wheel, and the driven wheel is connected to a shaft rod.

[0010] Preferably, the limiting groove frame is fixedly connected to a group of shaft rods, and the scraper body is matched and engaged inside the limiting groove frame.

[0011] Preferably, the flood-inking knife mechanism comprises a second cylinder, a movable end of the second cylinder is connected to a movable frame, and a flood-inking knife body is connected to the bottom of the movable frame.

[0012] Preferably, the convenient mechanism comprises a fixed groove frame, a handle is passed through the interior of the fixed groove frame, a limiting ring plate is fixedly sleeved on the surface of the handle, and a spring is connected to the surface of the limiting ring plate.

[0013] Preferably, the handle and the limiting ring plate form an elastic structure through a spring and a fixed groove frame, and the end of the handle extends to be engaged with the inside of the scraper body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model effectively drives the driving wheel to rotate through the motor, thereby driving the driven wheel to rotate, and then driving the shaft rod, the limit slot frame and the scraper body to shift the angle, so as to facilitate more precise adjustment of the height of the scraper body, without manual operation, and reduce adjustment errors.

[0016] 2. In the utility model, the second cylinder effectively drives the movable frame and the ink-covering knife body to move downward, so that the ink-covering knife body can contact the ink on the surface of the screen printing plate and evenly spread the ink. At this time, the bottom of the scraper body is higher than the bottom of the ink-covering knife body. When scraping ink subsequently, the second cylinder effectively drives the movable frame and the ink-covering knife body to move upward, so that the bottom of the ink-covering knife body is higher than the bottom of the scraper body.

[0017] 3. In the utility model, when the scraper body needs to be disassembled, repaired or replaced, the handle is pulled outward, and the end of the handle is separated from the scraper body. At this time, the scraper body is not constrained and can directly fall out of the limiting groove frame, so the disassembly is relatively fast. When installing a new scraper body, the handle is pulled outward, and the scraper body is directly inserted into the limiting groove frame. Then, the handle is released, and the end of the handle pops out due to the spring rebound force, and is effectively engaged in the scraper body to limit the scraper body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of a partial three-dimensional structure from another viewing angle of the utility model;

[0021] Figure 4 It is a schematic diagram of the partial disassembled structure of the utility model;

[0022] Figure 5 For the utility model Figure 4 A schematic diagram of the partially enlarged structure at center A;

[0023] In the figure: 1. Screen printing machine frame; 2. Slide; 3. First cylinder; 4. Bracket; 5. Ink-covering knife mechanism; 6. Scraper mechanism; 7. Convenient mechanism;

[0024] 501, second cylinder; 502, movable frame; 503, ink-covering knife body;

[0025] 601, motor; 602, driving wheel; 603, driven wheel; 604, limit plate; 605, shaft; 606, limit slot frame; 607, scraper body;

[0026] 701, fixed slot frame; 702, pull handle; 703, limit ring plate; 704, spring. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0028] An ink scraper structure for a screen printing machine, see Figures 1 to 5 , including a screen printing machine frame 1, a slide 2 is clamped inside the screen printing machine frame 1, a first cylinder 3 is connected to the top of the slide 2, a bracket 4 is connected to the movable end of the first cylinder 3, an ink-covering knife mechanism 5 is arranged at the rear of the inner side of the bracket 4, a scraper mechanism 6 is arranged in front of the ink-covering knife mechanism 5, and a convenient mechanism 7 is arranged on the surface of the scraper mechanism 6;

[0029] The scraper mechanism 6 includes a motor 601, a driving wheel 602 is connected to the movable end of the motor 601, a driven wheel 603 is meshed on the side of the driving wheel 602, a group of limit plates 604 are fixedly connected to the front end surface of the bracket 4, and a shaft rod 605 runs through the inside of the limit plate 604, wherein the motor 601 forms a transmission structure with the driven wheel 603 through the driving wheel 602, the driven wheel 603 is connected to the shaft rod 605, and one end of the shaft rod 605 close to the middle of the bracket 4 is connected to a limit slot frame 606, and a scraper body 607 is engaged inside the limit slot frame 606. Furthermore, the limit slot frame 606 is fixedly connected to a group of shaft rods 605, and the scraper body 607 is matched and engaged inside the limit slot frame 606. The utility model effectively drives the driving wheel 602 to rotate through the motor 601, thereby driving the driven wheel 603 to rotate, and then driving the shaft rod 605, the limit slot frame 606 and the scraper body 607 to shift the angle, so as to facilitate more precise adjustment of the scraper body 607 in height without manual operation, thereby reducing adjustment errors.

[0030] It is worth noting that the ink-covering knife mechanism 5 includes a second cylinder 501, a movable end of the second cylinder 501 is connected to a movable frame 502, and a flooding knife body 503 is connected to the bottom of the movable frame 502. In the utility model, the second cylinder 501 effectively drives the movable frame 502 and the flooding knife body 503 to move downward, so that the flooding knife body 503 can contact the ink on the surface of the screen printing plate and evenly spread the ink. At this time, the bottom of the scraper body 607 is higher than the bottom of the flooding knife body 503. When scraping ink later, the second cylinder 501 effectively drives the movable frame 502 and the flooding knife body 503 to move upward, so that the bottom of the flooding knife body 503 is higher than the bottom of the scraper body 607.

[0031] It is worth mentioning that the convenient mechanism 7 includes a fixed groove frame 701, a handle 702 runs through the fixed groove frame 701, a limiting ring plate 703 is fixedly sleeved on the surface of the handle 702, and a spring 704 is connected to the surface of the limiting ring plate 703, wherein the handle 702 and the limiting ring plate 703 form an elastic structure with the fixed groove frame 701 through the spring 704, and the end of the handle 702 extends to engage with the inside of the scraper body 607. When the scraper body 607 needs to be disassembled, repaired or replaced in the utility model, the handle 702 is pulled outward, and the end of the handle 702 is separated from the scraper body 607. At this time, the scraper body 607 is not constrained and can directly fall out of the limiting groove frame 606, so the disassembly is relatively fast. When installing a new scraper body 607, the handle 702 is pulled outward, and the scraper body 607 is directly inserted into the limiting groove frame 606. Then, the handle 702 is released, and the end of the handle 702 pops out due to the rebound force of the spring 704, and is effectively engaged in the scraper body 607 to limit the scraper body 607.

[0032] Working principle: Place the screen printing plate in the screen printing machine, squeeze out ink at one end of the screen printing plate, and drive the driving wheel 602 to rotate through the motor 601, thereby driving the driven wheel 603 to rotate, and then drive the shaft 605, the limit slot frame 606 and the scraper body 607 to shift the angle, so that the scraper body 607 can be adjusted more finely in height, and then the second cylinder 501 drives the movable frame 502 and the ink-covering knife body 503 to move downward, so that the ink-covering knife body 503 contacts the surface of the screen printing plate. Ink is driven by the external driving mechanism to move the slide 2, so that the inking knife body 503 can evenly spread the ink. At this time, the bottom of the scraper body 607 is higher than the bottom of the inking knife body 503. When scraping ink, the second cylinder 501 drives the movable frame 502 and the inking knife body 503 to move upward, so that the bottom of the inking knife body 503 is higher than the bottom of the scraper body 607. At the same time, the first cylinder 3 drives the bracket 4 to move downward, so that the bottom of the scraper body 607 contacts the ink, and drives the slide 2 to move back through the external driving mechanism to complete printing.

[0033] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An ink scraper structure for a screen printing machine, comprising a screen printing machine frame (1), characterized in that: A slide (2) is engaged inside the screen printing machine frame (1), a first cylinder (3) is connected to the top of the slide (2), a bracket (4) is connected to the movable end of the first cylinder (3), an ink-covering knife mechanism (5) is provided at the rear inside of the bracket (4), a scraper mechanism (6) is provided in front of the ink-covering knife mechanism (5), and a convenient mechanism (7) is provided on the surface of the scraper mechanism (6); The scraper mechanism (6) comprises a motor (601), the movable end of the motor (601) is connected to a driving wheel (602), the driving wheel (602) is meshed with a driven wheel (603) on the side, a group of limit plates (604) are fixedly connected to the front end surface of the bracket (4), a shaft (605) passes through the inside of the limit plates (604), one end of the shaft (605) close to the middle of the bracket (4) is connected to a limit slot frame (606), and a scraper body (607) is engaged inside the limit slot frame (606).

2. The ink scraper structure for a screen printer according to claim 1, characterized in that: The motor (601) forms a transmission structure through a driving wheel (602) and a driven wheel (603), and the driven wheel (603) is connected to a shaft (605).

3. The ink scraper structure for a screen printer according to claim 1, characterized in that: The limiting groove frame (606) is fixedly connected to a group of shaft rods (605), and the scraper body (607) is matched and engaged inside the limiting groove frame (606).

4. The ink scraper structure for a screen printer according to claim 1, characterized in that: The inking knife mechanism (5) comprises a second cylinder (501), the movable end of the second cylinder (501) is connected to a movable frame (502), and the bottom of the movable frame (502) is connected to an inking knife body (503).

5. The ink scraper structure for a screen printer according to claim 1, characterized in that: The convenient mechanism (7) comprises a fixed groove frame (701), a pull handle (702) is passed through the fixed groove frame (701), a limiting ring plate (703) is fixedly sleeved on the surface of the pull handle (702), and a spring (704) is connected to the surface of the limiting ring plate (703).

6. The ink scraper structure for a screen printer as claimed in claim 5, characterized in that: The pull handle (702), the limiting ring plate (703) and the fixed slot frame (701) form an elastic structure through a spring (704), and the end of the pull handle (702) extends to engage with the inside of the scraper body (607).

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