Dual-drive scraper mechanism based on printing machine

Abstract

The utility model discloses a dual-drive scraper mechanism based on a printing machine, and relates to the technical field of printing machine equipment, the dual-drive scraper mechanism based on the printing machine comprises a driving assembly, a sliding assembly, a first connecting block, a monitoring assembly and a scraper assembly; the first connecting block is fixed between the driving assembly and the sliding assembly, and the driving assembly and the sliding assembly are arranged in parallel in the vertical direction; the driving assembly drives the sliding assembly to do reciprocating motion in the vertical direction. The monitoring assembly is arranged at the bottom of the first connecting block; the scraper assembly is fixed to the side, away from the first connecting block, of the monitoring assembly. The driving assembly comprises a first lead screw motor, a second lead screw motor and a scraper cross beam. The first lead screw motor and the second lead screw motor are fixedly installed on the two sides of the top of the scraper cross beam correspondingly, and driving shafts of the first lead screw motor and the second lead screw motor penetrate through the scraper cross beam and are fixedly connected with the first connecting block. The utility model has the beneficial effect that the printing quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machine equipment, and more specifically to a double-driven scraper mechanism based on a printing machine. Background Art

[0002] The scraper mechanism of the printing press is one of the important parts in the printing process. It is mainly used to print slurries such as solder paste, ink, red glue, silver paste, and heat dissipation glue on the substrate to transfer the pattern to the printing medium. The scraper mechanism is usually composed of a scraper, a scraper holder, a scraper adjustment device, etc. Among them, the scraper is a tool used to scrape the slurry evenly on the surface of the printing plate. It is usually made of elastic materials such as steel sheets or polyurethane. It can effectively scrape off the slurry so that only the pattern in the groove is stained with slurry. The scraper holder is a mechanical device for fixing the scraper. It is usually made of metal and is used to support and fix the scraper to ensure its stability and accuracy during the printing process. The scraper adjustment device is used to adjust the position and angle of the scraper to control the thickness and uniformity of the slurry. By adjusting the pressure, angle and position of the scraper, the best printing effect under different printing requirements can be achieved. The design and adjustment of the entire scraper mechanism has an important influence on the printing quality. It can ensure the uniform coating of the slurry on the printing plate, thereby ensuring the clarity and consistency of the printed product.

[0003] The scraper adjustment device generally controls the scraper's downward pressure stroke by lifting and lowering a motor, and at the same time, a pressure sensor is set at the connection between the scraper and the motor. The pressure data is monitored by the pressure sensor, and the scraper pressure can be adjusted to a certain extent. However, the existing printing machine is a single-drive scraper structure, with only one motor lifting and connecting the middle of the scraper to control the downward pressure stroke. Only the total pressure of the scraper can be adjusted, and the pressure at both ends of the scraper cannot be adjusted, which will cause uneven pressure at both ends of the scraper and affect the printing quality. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a dual-drive scraper mechanism based on a printing press, which solves the problem that the pressure at both ends of the scraper cannot be adjusted, resulting in uneven pressure at both ends of the scraper and affecting the printing quality, thereby ensuring the printing quality.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a double-drive scraper mechanism based on a printing press, the improvement of which is that the double-drive scraper mechanism based on a printing press comprises a driving component, a sliding component, a first connecting block, a monitoring component and a scraper component; the first connecting block is fixed between the driving component and the sliding component, and the driving component and the sliding component are arranged in parallel in the vertical direction; the driving component drives the sliding component to reciprocate in the vertical direction; the monitoring component is arranged at the bottom of the first connecting block; the scraper component is fixed to a side of the monitoring component away from the first connecting block;

[0006] The driving assembly includes a first screw motor, a second screw motor and a scraper beam; the first screw motor and the second screw motor are respectively fixedly installed on both sides of the top of the scraper beam, and the driving shafts of the first screw motor and the second screw motor pass through the scraper beam and are fixedly connected to the first connecting block;

[0007] The monitoring assembly includes a spring, a spring pad, a pressure sensor and a second connecting block; the spring is fixed between the bottom of the first connecting block and the spring pad; the pressure sensor is arranged at the bottom of the spring pad and installed on the side of the second connecting block close to the sliding assembly; the side of the second connecting block close to the first screw motor away from the sliding assembly is fixedly connected to one end of the scraper assembly; the side of the second connecting block close to the second screw motor away from the sliding assembly is detachably connected to the other end of the scraper assembly.

[0008] In the above structure, the first screw motor and the second screw motor are both provided with a coupling, a ball screw and a screw nut; the driving shafts of the first screw motor and the second screw motor are fixedly connected to one end of the coupling; the other end of the coupling is fixedly connected to one end of the ball screw; and the other end of the ball screw is threadedly connected to the screw nut.

[0009] In the above structure, the sliding assembly includes a slider, a guide rail and a guide rail seat; the slider is slidably connected to the guide rail; the guide rail is fixedly installed on one side of the guide rail seat and is parallel to the ball screw; the guide rail seat is installed with one side of the guide rail close to the screw nut, and one end of the guide rail seat is fixed to the bottom of the scraper beam.

[0010] In the above structure, the side of the first connecting block close to the driving assembly is clamping and is sleeved on the screw nut; the side of the first connecting block close to the sliding assembly is square and is fixed to the side of the slider away from the guide rail.

[0011] In the above structure, a first mounting hole is provided at the bottom of the first connecting block on the side close to the sliding block, and one end of the spring away from the spring pad is fixed in the first mounting hole.

[0012] In the above structure, the scraper assembly includes a connecting plate, a scraper seat and a scraper; the connecting plate is fixedly connected between the top of the scraper seat and the side of the second connecting block close to the first screw motor away from the sliding assembly; the scraper is fixedly installed at the bottom of the scraper seat.

[0013] In the above structure, a second mounting hole and a spring clamping block are provided at the top of the second connecting block close to the sliding component; the pressure sensor is fixedly installed at the bottom of the second mounting hole; one end of the spring close to the second connecting block is fixed in the second mounting hole through the spring clamping block, and the spring pad is pressed against the top of the pressure sensor.

[0014] In the above structure, a limiting bolt is vertically provided on one side of the second connecting block close to the second mounting hole; one end of the limiting bolt is fixed to the second connecting block, and the other end is slidably connected to the first connecting block.

[0015] In the above structure, a fine-tuning assembly is provided on the side of the second connecting block away from the sliding assembly, and the fine-tuning assembly includes a knob, a bearing and a bearing seat; the bearing passes through the second connecting block and is slidably connected to the second connecting block; the knob is fixedly connected to one end of the bearing; a side surface of the bearing seat is fixedly connected to the other end of the bearing, and the bottom of the bearing seat close to the first screw motor is fixedly connected to one end of the connecting plate; and the bottom of the bearing seat close to the second screw motor is detachably connected to the other end of the connecting plate.

[0016] The beneficial effect of the utility model is that the downward pressing stroke of the scraper assembly is synchronously driven by the first screw motor and the second screw motor, and the pressure data of the two ends of the scraper assembly during the downward pressing process are monitored by the pressure sensor. The pressure at the two ends of the scraper can be adjusted with reference to the monitored pressure data to ensure the pressure balance at the two ends of the scraper, thereby ensuring the printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a double-drive scraper mechanism based on a printing press of the utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of a double-drive scraper mechanism based on a printing press of the utility model. Figure 2 ;

[0019] Figure 3 It is a structural schematic diagram of a monitoring component of a dual-drive scraper mechanism based on a printing press according to the utility model. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0022] Reference Figure 1-Figure 3 As shown, the utility model discloses a dual-drive scraper mechanism based on a printing press, which comprises a driving assembly, a sliding assembly 3, a first connecting block 4, a monitoring assembly 1 and a scraper assembly 2; the first connecting block 4 is fixed between the driving assembly and the sliding assembly 3, and the driving assembly and the sliding assembly 3 are arranged in parallel in the vertical direction; the driving assembly drives the sliding assembly 3 to reciprocate in the vertical direction; the monitoring assembly 1 is arranged at the bottom of the first connecting block 4; the scraper assembly 2 is fixed to a side of the monitoring assembly 1 away from the first connecting block 4; specifically, the driving assembly comprises a first screw motor 5, a second screw motor 6 and a scraper beam 7; the first screw motor 5 and the second screw motor 6 are respectively fixed It is fixedly installed on both sides of the top of the scraper beam 7, and the driving shafts of the first screw motor 5 and the second screw motor 6 pass through the scraper beam 7 and are fixedly connected to the first connecting block 4; the monitoring component 1 includes a spring 18, a spring pad 19, a pressure sensor 20 and a second connecting block 21; the spring 18 is fixed between the bottom of the first connecting block 4 and the spring pad 19; the pressure sensor 20 is arranged at the bottom of the spring pad 19 and is installed on the side of the second connecting block 21 close to the sliding component 3; the second connecting block 21 close to the first screw motor 5 is fixedly connected to one end of the scraper assembly 2 on the side away from the sliding component 3; the second connecting block 21 close to the second screw motor 6 is detachably connected to the other end of the scraper assembly 2 on the side away from the sliding component 3.

[0023] In this embodiment, the dual-drive scraper mechanism based on the printing press includes a driving component, a sliding component 3, a first connecting block 4, a monitoring component 1 and a scraper component 2, wherein the driving component serves as the driving source of the entire scraper mechanism, and the driving component is fixedly connected to the sliding component 3 through the first connecting block 4 and is arranged parallel to each other in the vertical direction, so that the driving component can drive the sliding component 3 to reciprocate in the vertical direction; and because the sliding component 3 is fixedly connected to one side of the monitoring component 1, and the scraper component 2 is fixedly connected to the other side of the fixed component, when the sliding component 3 moves downward by the drive of the driving component, the monitoring component 1 monitors the pressure data of the scraper component 2 in the downward stroke; specifically, the driving component includes a first screw motor 5, a second screw motor 6 and a scraper beam 7, wherein the existence of the scraper beam 7 can fix the first screw motor 5 and the second screw motor 6 on the same realization plane, so that the two can be driven synchronously; the first screw motor 5 and the second screw motor 6 are respectively located at the two ends of the scraper assembly 2, and the sliding component 3 and the second screw motor 6 are driven by the dual drive of the first screw motor 5 and the second screw motor 6. The first connecting block 4 reciprocates in the vertical direction. When the first screw motor 5 and the second screw motor 6 drive the sliding assembly 3 and the first connecting block 4 to move downward, downward pressure is applied to the scraper assembly 2. The monitoring assembly 1 is arranged between the sliding assembly 3 and the scraper assembly 2 to monitor the pressure data at both ends of the scraper assembly 2. Further, the monitoring assembly 1 includes a spring 18, a spring pad 19, a pressure sensor 20 and a second connecting block 21. The spring 18 is arranged between the first connecting block 4 and the pressure sensor 20. When the sliding assembly 3 slides downward, The first connecting block 4 moves synchronously with the sliding assembly 3, the spring 18 is compressed, and the pressure sensor 20 measures the pressure received when the spring 18 is compressed, so as to monitor the pressure data between the first connecting block 4 and the scraper assembly 2, and the first connecting block 4 in the utility model is connected to the two ends of the scraper assembly 2 through the second connecting block 21, so as to monitor the pressure data at both ends of the scraper 16 during the downward pressing process of the scraper 16, and adjust the pressure at both ends of the scraper 16 with reference to the monitored pressure data to ensure the balance of pressure at both ends of the scraper 16, thereby ensuring the printing quality.In addition, the side of the second connecting block 21 close to the first screw motor 5 away from the sliding component 3 is fixedly connected to one end of the scraper assembly 2; the side of the second connecting block 21 close to the second screw motor 6 away from the sliding component 3 is detachably connected to the other end of the scraper assembly 2. This design can realize flexible adjustment of the setting angle of the scraper assembly 2. Specifically, when the angle of the scraper assembly 2 needs to be adjusted before the scraper assembly 2 is pressed down, it is only necessary to first disassemble the connection between the side of the second connecting block 21 close to the second screw motor 6 away from the sliding component 3 and the scraper assembly 2, and then adjust the angle of the scraper assembly 2 by adjusting the angle of the second connecting block 21 close to the first screw motor 5 away from the sliding component 3. Finally, the side of the second connecting block 21 close to the second screw motor 6 away from the sliding component 3 is fixedly installed between the scraper assembly 2 to improve the flexibility of printing. In some embodiments, a pressure control subsystem is connected between the first screw motor 5, the second screw motor 6 and the pressure sensor 20 in this scheme; during the downward pressing process of the scraper assembly 2, the pressure control subsystem collects and compares the pressure data at both ends of the scraper assembly 2. If the pressure data at both ends of the scraper assembly 2 are within the allowable error range, the pressure control subsystem does not make any adjustments to the first screw motor 5 and the second screw motor 6; if the pressure data at both ends of the scraper assembly 2 are outside the allowable error range, the pressure control subsystem adaptively adjusts the rotation speed of the first screw motor 5 and / or the second screw motor 6, so that the pressure data at both ends of the scraper assembly 2 are within the allowable error range and meet the printing requirements, so as to adjust the pressure at both ends of the scraper 16, ensure the balance of pressure at both ends of the scraper 16, and thus ensure the printing quality; the pressure control subsystem belongs to the commonly used technical means in this field and is not limited in this scheme.

[0024] For further information, please refer to Figure 1-Figure 3; The first screw motor 5 and the second screw motor 6 are both provided with a coupling 8, a ball screw 9 and a screw nut 10; the driving shafts of the first screw motor 5 and the second screw motor 6 are fixedly connected to one end of the coupling 8; the other end of the coupling 8 is fixedly connected to one end of the ball screw 9; the other end of the ball screw 9 is threadedly connected to the screw nut 10; the sliding assembly 3 includes a slider 13, a guide rail 11 and a guide rail seat 12; the slider 13 is slidably connected to the guide rail 11; the guide rail 11 is fixedly installed on one side of the guide rail seat 12 and is connected to the ball screw 9. The lead screws 9 are parallel to each other; the guide rail seat 12 is installed with a side of the guide rail 11 close to the lead screw nut 10, and one end of the guide rail seat 12 is fixed to the bottom of the scraper beam 7; the first connecting block 4 is in a clamping shape on the side close to the driving component, and is sleeved on the lead screw nut 10; the first connecting block 4 is in a square shape on the side close to the sliding component 3, and is fixed to the side of the slider 13 away from the guide rail 11; the first connecting block 4 is provided with a first mounting hole at the bottom of the side close to the slider 13, and the end of the spring 18 away from the spring pad 19 is fixed in the first mounting hole.

[0025] In the specific implementation of the present utility model, since the first screw motor 5 and the second screw motor 6 are both provided with a coupling 8, a ball screw 9 and a screw nut 10, when the first screw motor 5 and the second screw motor 6 are driven, the driving shafts of the first screw motor 5 and the second screw motor 6 drive the ball screw 9 to rotate through the coupling. During the rotation of the ball screw 9, friction will be generated between the ball screw 9 and the screw nut 10. Driven by this friction, the screw nut 10 moves on the ball screw 9; since the guide rail 11 and the ball screw 9 are arranged in parallel, the guide rail 11 is slidably connected to the slider 13, and the slider 13 is fixedly connected to the screw nut 10 through the first connecting block 4. When the screw nut 10 moves on the ball screw 9, the slider 13 moves synchronously on the slide rail, the first connecting block 4 also moves synchronously, and the first connecting block 4 is fixed to one end of the spring 18 through the first mounting hole. When the first connecting block 4 moves downward, the first mounting hole presses the spring 18 to deform the spring 18.

[0026] Continue to refer to Figure 1-Figure 3As shown, the scraper assembly 2 includes a connecting plate 15, a scraper seat 17 and a scraper 16; the connecting plate 15 is fixedly connected between the top of the scraper seat 17 and the side of the second connecting block 21 close to the first screw motor 5 away from the sliding assembly 3; the scraper 16 is fixedly installed at the bottom of the scraper seat 17; the top of the second connecting block 21 close to the sliding assembly 3 is provided with a second mounting hole and a spring 18 clamping block; the pressure sensor 20 is fixedly installed at the bottom of the second mounting hole; one end of the spring 18 close to the second connecting block 21 is fixed in the second mounting hole through the spring 18 clamping block, and the spring pad 19 is pressed against the top of the pressure sensor 20; the second connecting block 21 is vertically connected to the side close to the second mounting hole A limiting bolt 14 is provided; one end of the limiting bolt 14 is fixed on the second connecting block 21, and the other end is slidably connected to the first connecting block 4; a fine-tuning assembly is provided on the side of the second connecting block 21 away from the sliding assembly 3, and the fine-tuning assembly includes a knob 22, a bearing 23 and a bearing seat 24; the bearing 23 passes through the second connecting block 21 and is slidably connected to the second connecting block 21; the knob 22 is fixedly connected to one end of the bearing 23; one side surface of the bearing seat 24 is fixedly connected to the other end of the bearing 23, and the bottom of the bearing seat 24 close to the first screw motor 5 is fixedly connected to one end of the connecting plate 15; and the bottom of the bearing seat 24 close to the second screw motor 6 is detachably connected to the other end of the connecting plate 15.

[0027] In this embodiment, the scraper assembly 2 includes a connecting plate 15, a scraper seat 17 and a scraper 16, wherein the scraper seat 17 is used to fix the scraper 16; the connecting plate 15 is used to fix the scraper seat 17 to the second connecting block 21, specifically, a fine-tuning assembly is provided on the side of the second connecting block 21 away from the sliding assembly, and the fine-tuning assembly includes a knob 22, a bearing 23 and a bearing seat 24, the bearing 23 passes through the second connecting block 21 and is slidably connected to the second connecting block 21; the knob 22 is fixedly connected to one end of the bearing 23; one side of the bearing seat 24 is fixedly connected to the other end of the bearing 23, and the bottom of the bearing seat 24 close to the first screw motor 5 is fixedly connected to one end of the connecting plate 15; and the bottom of the bearing seat 24 close to the second screw motor 6 is detachably connected to the other end of the connecting plate 15; wherein, when the angle of the scraper 16 needs to be adjusted before the scraper 16 is pressed down, it is necessary to first disassemble the bearing seat 24 close to the second screw motor 6 and the connection between the bottom of the bearing seat 24 and the other end of the connecting plate 15, that is, by rotating the knob 22 close to the second screw motor 6, the bearing seat 24 close to the second screw motor 6 is separated from the connecting plate 15; then by rotating the knob 22 close to the first screw motor 5, the bearing seat 24 close to the first screw motor 5 drives the connecting plate 15 to rotate slightly with one end close to the first screw motor 5 as the center; finally, by rotating the knob 22 close to the second screw motor 6, the bearing seat 24 close to the second screw motor 6 is turned back to a suitable angle, so that the bearing seat 24 close to the second screw motor 6 is in contact with and fixed to the connecting plate 15, so as to adjust the angle of the scraper 16, thereby ensuring the flexibility of printing; in addition, the existence of the limit bolt 14 is to limit the downward stroke of the first connecting block 4, so as to limit the pressure data between the first connecting block 4 and the scraper assembly 2, thereby ensuring the safety of the downward pressure of the scraper 16, so as to extend the service life of the scraper 16.

[0028] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A dual-drive scraper mechanism based on a printing press, characterized in that: The dual-drive scraper mechanism based on the printing press comprises a driving assembly, a sliding assembly, a first connecting block, a monitoring assembly and a scraper assembly; the first connecting block is fixed between the driving assembly and the sliding assembly, and the driving assembly and the sliding assembly are arranged in parallel in the vertical direction; the driving assembly drives the sliding assembly to reciprocate in the vertical direction; the monitoring assembly is arranged at the bottom of the first connecting block; the scraper assembly is fixed to a side of the monitoring assembly away from the first connecting block; The driving assembly includes a first screw motor, a second screw motor and a scraper beam; the first screw motor and the second screw motor are respectively fixedly installed on both sides of the top of the scraper beam, and the driving shafts of the first screw motor and the second screw motor pass through the scraper beam and are fixedly connected to the first connecting block; The monitoring assembly includes a spring, a spring pad, a pressure sensor and a second connecting block; the spring is fixed between the bottom of the first connecting block and the spring pad; the pressure sensor is arranged at the bottom of the spring pad and installed on the side of the second connecting block close to the sliding assembly; the side of the second connecting block close to the first screw motor away from the sliding assembly is fixedly connected to one end of the scraper assembly; the side of the second connecting block close to the second screw motor away from the sliding assembly is detachably connected to the other end of the scraper assembly.

2. A dual-drive scraper mechanism based on a printing press according to claim 1, characterized in that: The first screw motor and the second screw motor are both provided with a coupling, a ball screw and a screw nut; the driving shafts of the first screw motor and the second screw motor are fixedly connected to one end of the coupling; the other end of the coupling is fixedly connected to one end of the ball screw; the other end of the ball screw is threadedly connected to the screw nut.

3. A dual-drive scraper mechanism based on a printing press according to claim 2, characterized in that: The sliding assembly includes a slider, a guide rail and a guide rail seat; the slider is slidably connected to the guide rail; the guide rail is fixedly installed on one side of the guide rail seat and is parallel to the ball screw; the guide rail seat is installed with one side of the guide rail close to the screw nut, and one end of the guide rail seat is fixed to the bottom of the scraper beam.

4. A dual-drive scraper mechanism based on a printing press according to claim 3, characterized in that: The side of the first connection block close to the driving component is in a clamping shape and is sleeved on the lead screw nut; the side of the first connection block close to the sliding component is in a square shape and is fixed to the side of the sliding block away from the guide rail.

5. A dual-drive scraper mechanism based on a printing press according to claim 4, characterized in that: A first mounting hole is arranged at the bottom of the first connecting block on one side close to the sliding block, and one end of the spring away from the spring pad is fixed in the first mounting hole.

6. A dual-drive scraper mechanism based on a printing press according to claim 1, characterized in that: The scraper assembly includes a connecting plate, a scraper seat and a scraper; the connecting plate is fixedly connected between the top of the scraper seat and the side of the second connecting block close to the first screw motor away from the sliding assembly; the scraper is fixedly installed at the bottom of the scraper seat.

7. A dual-drive scraper mechanism based on a printing press according to claim 6, characterized in that: A second mounting hole and a spring clamping block are provided at the top of the second connecting block close to the sliding component; the pressure sensor is fixedly installed at the bottom of the second mounting hole; one end of the spring close to the second connecting block is fixed in the second mounting hole through the spring clamping block, and the spring pad is pressed against the top of the pressure sensor.

8. A dual-drive scraper mechanism based on a printing press according to claim 7, characterized in that: A limiting bolt is vertically arranged on one side of the second connecting block close to the second mounting hole; one end of the limiting bolt is fixed on the second connecting block, and the other end is slidably connected to the first connecting block.

9. A dual-drive scraper mechanism based on a printing press according to claim 8, characterized in that: A fine-tuning assembly is provided on the side of the second connecting block away from the sliding assembly, and the fine-tuning assembly includes a knob, a bearing and a bearing seat; the bearing passes through the second connecting block and is slidably connected to the second connecting block; the knob is fixedly connected to one end of the bearing; a side surface of the bearing seat is fixedly connected to the other end of the bearing, and the bottom of the bearing seat close to the first screw motor is fixedly connected to one end of the connecting plate; and the bottom of the bearing seat close to the second screw motor is detachably connected to the other end of the connecting plate.

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