CN222271626U - Needle printer suitable for automatically adjusting printing force and adjusting printing paper with different thicknesses - Google Patents

Abstract

The utility model discloses a dot matrix printer suitable for automatically adjusting the printing force of printing papers of different thicknesses, and relates to the technical field of printers, comprising a housing, a front guard plate being rotatably installed on the front side of the housing, an operation panel being installed on the upper surface of the housing, a measuring unit, a control component and a lifting unit being installed in the housing, a displacement drive component being installed on the lifting unit, and a printing needle and a ribbon component being installed on the displacement drive component. The beneficial effect is that the thickness of the paper is detected by the resistance change of the sliding rheostat and the distance measuring sensor, and the printing force is adjusted by adjusting the height of the printing needle by the motor, the screw and the slider, so that the printer can automatically adjust the printing force according to the thickness of different papers, does not need manual adjustment, simplifies operation, improves printing efficiency, avoids unclear printing or paper breakage, ensures printing quality, and avoids wasting paper.

Description

Needle printer suitable for automatically adjusting printing force and adjusting printing paper with different thicknesses

Technical Field

The utility model relates to the technical field of printers, in particular to a needle printer which is suitable for automatically adjusting printing force and adjusting printing paper with different thicknesses.

Background

The pin printer is a special printer and has great differences with inkjet and laser printers, and the difference of the pin printer is that other types of printers cannot replace the pin printer, and the pin printer has unique market share and serves special industry users. The needle printer is a pressure-sensitive type needle, the duplicating paper is hit through the needle in the printing head, the printing needle head ejects out during printing, the color of the color tape is printed on the paper, the needle head always applies pressure to the paper during printing, and multiple layers of duplicating paper can be printed with the same effect.

Compared with the prior art in the related field, when the existing needle printer prints, the manual adjustment is needed according to the thickness of the printed paper, so that the complexity of operation is increased, and when the operator forgets to adjust, the printing is unclear or broken, so that the paper is wasted.

Disclosure of utility model

The utility model aims to solve the problems and provide a needle printer which is suitable for automatically adjusting printing force adjustment of printing paper with different thicknesses.

The utility model realizes the above purpose through the following technical scheme:

The needle printer suitable for automatically adjusting printing force adjustment of printing paper with different thicknesses comprises a shell, a front guard plate is rotatably arranged on the front side of the shell, an operation panel is arranged on the upper surface of the shell, a measuring unit, a control assembly and a lifting unit are arranged in the shell, a displacement driving assembly is arranged on the lifting unit, a printing needle head and a color ribbon assembly are arranged on the displacement driving assembly, the operation panel, the displacement driving assembly, the printing needle head, the color ribbon assembly and the control assembly are electrically connected, the operation panel, the displacement driving assembly, the printing needle head, the color ribbon assembly and the control assembly work in the prior art, the front end of the shell is sealed through the front guard plate, the thickness of paper is detected through the measuring unit, the heights of the displacement driving assembly and the printing needle head are adjusted through the lifting unit according to the thickness of the paper, so that the printing force during printing is adjusted, and the printing force is matched with the paper through the displacement driving assembly, the printing needle head and the color ribbon assembly;

The measuring unit comprises supporting rods and first sliding rods, wherein the supporting rods are arranged on two sides of the inside of the shell, the mounting boxes are arranged at the middle positions of the two supporting rods, the sliding varistors are arranged in the mounting boxes, the first sliding rods are slidably mounted on the mounting boxes, top plates are arranged on the parts of the first sliding rods, which are located in the mounting boxes, ejector pins are arranged on the top plates, the ejector pins are connected with sliding sheets of the sliding varistors, the mounting frames are arranged at the lower ends of the first sliding rods, the electric rollers are rotatably arranged on the mounting frames, rollers are arranged on the electric rollers, the electric rollers and the control assembly are electrically connected, the electric rollers and the sliding varistors work in the prior art, under the action of the gravity of the top plates, the rollers can be attached to paper, and when the rollers are pressed on the paper, the rollers are driven to move through the mounting frames, the first sliding rods and the top plates, the positions of the sliding sheets of the sliding varistors are adjusted through the ejector pins, and the thickness of the sliding varistors are detected, so that the thickness of the paper is printed on the paper is adjusted.

Further, the first slide bar is square, and through square design to carry out spacingly to the first slide bar, effectively avoid first slide bar to take place to rotate.

Further, the front guard plate adopts the transparent plate, adopts the transparent plate to be convenient for look over the printer operating condition in the casing.

Further, the lifting unit comprises motors, the motors are installed on two sides of the inside of the shell, screw rods are installed on output shafts of the two motors, sliding blocks are connected to the screw rods in a threaded mode, the two sliding blocks are connected with two sides of the displacement driving assembly respectively, the motors are electrically connected with the control assembly, the motors work in the prior art, and the motors adjust the heights of the displacement driving assembly and the printing needle head through the screw rods and the sliding blocks.

Further, be provided with fixed unit on the casing, fixed unit is including accomodating groove, second slide bar and constant head tank, accomodate the groove and set up in the top of casing, second slide bar slidable mounting is on the casing, handle and locating piece are installed respectively at the both ends of second slide bar, the second slide bar has cup jointed the spring on being located the part of accomodating the inslot, casing and locating piece are connected respectively at the both ends of spring, the constant head tank sets up on the front guard, constant head tank sliding connection locating piece makes locating piece slidable mounting in the constant head tank through the spring, thereby fix the front guard on the casing.

Further, install the range sensor perpendicularly on the print needle, be connected between range sensor and the control assembly, range sensor work adopts prior art, measures the distance between print needle to the paper through range sensor.

Further, a level sensor is mounted on the upper surface of the middle position of the displacement driving assembly, the level sensor is electrically connected with the control assembly, the level sensor works in the prior art, and the level state of the displacement driving assembly is monitored through the level sensor.

Compared with the prior art, the beneficial effects are as follows:

1. The gyro wheel laminating is on the paper, the gyro wheel is adjusted the resistance of slide rheostat through the mounting bracket, first slide bar, roof and thimble, resistance change through slide rheostat, thereby accomplish the detection to paper thickness, detect the thickness of paper once more through range finding sensor, guarantee the accuracy that paper thickness detected, according to the thickness of paper, adjust the height of printing syringe needle through motor, screw rod and slider, accomplish the adjustment to printing dynamics through the adjustment of printing syringe needle height, make the automatic adjustment to printing dynamics that can accomplish according to the thickness of different paper, do not need manual adjustment, simplify the operation, improve the efficiency of printing, avoid printing unclear or the paper appearance fracture, guarantee the quality of printing, avoid causing the waste to the paper.

2. Through accomodating groove, second slide bar, spring, locating piece, constant head tank and fixing the front guard plate on the casing, improve front guard plate's stability and fastness, avoid opening the front guard plate at the printing in-process maloperation, lead to the fact the influence to the process of printing, guarantee the efficiency of printing.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of a pin printer for automatically adjusting printing force for printing paper of different thicknesses according to the present utility model;

FIG. 2 is an enlarged schematic view of the needle printer of FIG. 1A for automatically adjusting the printing force for printing paper of different thickness according to the present utility model;

FIG. 3 is an enlarged schematic view of the needle printer of FIG. 1 for automatically adjusting the printing force for printing paper of different thickness according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a mounting box of the needle printer for automatically adjusting printing force for printing paper with different thickness according to the utility model;

FIG. 5 is a schematic view of the connection structure of the mounting frame and the roller of the needle printer for automatically adjusting the printing force for printing paper with different thickness according to the utility model;

FIG. 6 is a schematic diagram of the overall structure of the pin printer of the utility model adapted for automatically adjusting the printing force adjustment of printing paper of different thicknesses;

Fig. 7 is a schematic view of a partial sectional structure of a pin printer for automatically adjusting printing force for printing paper with different thickness according to the present utility model.

The reference numerals are explained as follows:

1. A housing; 2, front guard plate, 3, measuring unit, 31, support rod, 32, mounting box, 33, slide rheostat, 34, thimble, 35, top plate, 36, first slide bar, 37, mounting frame, 38, roller, 39, electric roller, 4, fixing unit, 41, storage groove, 42, second slide bar, 43, handle, 44, spring, 45, positioning block, 46, positioning groove, 5, lifting unit, 51, motor, 52, screw, 53, slide block, 6, control component, 7, operation panel, 8, displacement driving component, 9, printing needle, 10, distance measuring sensor, 11, level sensor, 12, color band component.

Detailed Description

The needle printer for automatically adjusting printing force adjustment of printing paper with different thicknesses is shown in fig. 1-7, and comprises a shell 1, wherein a front guard plate 2 is rotatably arranged at the front side of the shell 1, an operation panel 7 is arranged on the upper surface of the shell 1, a measuring unit 3, a control component 6 and a lifting unit 5 are arranged in the shell 1, a displacement driving component 8 is arranged on the lifting unit 5, a printing needle 9 and a color ribbon component 12 are arranged on the displacement driving component 8, the operation panel 7, the displacement driving component 8, the printing needle 9, the color ribbon component 12 and the control component 6 are electrically connected, the operation panel 7, the displacement driving component 8, the printing needle 9, the color ribbon component 12 and the control component 6 work in the prior art, the front end of the shell 1 is sealed through the front guard plate 2, the thickness of paper is detected through the measuring unit 3, the heights of the displacement driving component 8 and the printing needle 9 are adjusted through the lifting unit 5 according to the thickness of the paper, and the printing force during printing is automatically adjusted through the height adjustment of the printing needle 9, so that printing force is ensured, and the printing force is matched with the printing needle 8 and the printing needle 9 and the color ribbon component 12 is matched with the printing needle 9;

The measuring unit 3 comprises supporting rods 31 and first sliding rods 36, the supporting rods 31 are arranged on two sides of the inside of the shell 1, a mounting box 32 is arranged at the middle position of the two supporting rods 31, a slide rheostat 33 is arranged in the mounting box 32, the first sliding rods 36 are slidably arranged on the mounting box 32, a top plate 35 is arranged on the part of the first sliding rods 36 positioned in the mounting box 32, ejector pins 34 are arranged on the top plate 35, the ejector pins 34 are connected with sliding sheets of the slide rheostat 33, a mounting frame 37 is arranged at the lower end of the first sliding rods 36, an electric roller 39 is rotatably arranged on the mounting frame 37, a roller 38 is arranged on the electric roller 39, the slide rheostat 33 and the control component 6 are electrically connected, the electric roller 39 and the slide rheostat 33 work in the prior art, as shown in figures 1, 4 and 5, under the action of the gravity of the top plate 35, the ejector pins 34, the mounting frame 37, the rollers 38 and the electric roller 39, the rollers 38 can be attached to paper, the rollers 38 are driven by the electric roller 39 to push the paper, the influence of the rollers 38 on the feeding of the paper is effectively avoided, the height of the rollers 38 changes when the rollers 38 are pressed on the paper, the rollers 38 drive the ejector pins 34 to move through the mounting frame 37, the first sliding rod 36 and the top plate 35, the ejector blades of the slide rheostat 33 are driven by the ejector pins 34 to move, the resistance of the slide rheostat 33 is adjusted, the thickness of the paper is detected through the change of the resistance of the slide rheostat 33, the height of the printing needle 9 can be automatically adjusted according to the thickness of different papers, manual adjustment of staff is not needed, and the printing efficiency is effectively improved.

The first sliding rod 36 is square, as shown in fig. 4 and 5, and the first sliding rod 36 is limited by the square design, so that the first sliding rod 36 is effectively prevented from rotating.

The front guard plate 2 adopts a transparent plate, as shown in fig. 6, and the working state of the printer in the shell 1 is conveniently checked by adopting the transparent plate.

The lifting unit 5 comprises a motor 51, the motor 51 is arranged on two sides of the inside of the shell 1, screw rods 52 are arranged on output shafts of the two motors 51, sliding blocks 53 are connected to the screw rods 52 in a threaded mode, the two sliding blocks 53 are respectively connected with two sides of the displacement driving assembly 8, the motor 51 is electrically connected with the control assembly 6, the motor 51 works in the prior art, after the thickness of paper is determined as shown in fig. 1 and 3, the screw rods 52 are driven to rotate through the motor 51, the heights of the displacement driving assembly 8 and the printing needle head 9 are adjusted through the sliding blocks 53, and the height of the printing needle head 9 is adjusted, so that the printing needle head 9 can adjust the printing force according to the thickness of different paper, the printing quality is guaranteed, the printing is effectively prevented from being unclear or the paper is prevented from being broken, and the paper is prevented from being wasted.

The fixing unit 4 is arranged on the shell 1, the fixing unit 4 comprises a containing groove 41, a second sliding rod 42 and a positioning groove 46, the containing groove 41 is arranged above the shell 1, the second sliding rod 42 is slidably mounted on the shell 1, a handle 43 and a positioning block 45 are respectively mounted at two ends of the second sliding rod 42, a spring 44 is sleeved on the part, located in the containing groove 41, of the second sliding rod 42, the two ends of the spring 44 are respectively connected with the shell 1 and the positioning block 45, the positioning groove 46 is arranged on the front guard plate 2, the positioning groove 46 is slidably connected with the positioning block 45, as shown in fig. 6 and 7, when the front guard plate 2 is closed to the shell 1, the positions of the containing groove 41 and the positioning groove 46 correspond to each other, under the elastic force of the spring 44, the positioning block 45 is slidably mounted in the positioning groove 46, so that the front guard plate 2 is fixed on the shell 1, stability and firmness of the front guard plate 2 are improved, the front guard plate 2 is prevented from being opened by misoperation in the printing process, influences on the printing process are avoided, when the front guard plate 2 needs to be opened, the positioning block 43 drives the second sliding rod 42 and the positioning block 45 to move, and the positioning block 45 is separated from the positioning groove 46, and the front guard plate 2 can be opened.

The distance measuring sensor 10 is vertically arranged on the printing needle 9, the distance measuring sensor 10 is electrically connected with the control assembly 6, the distance measuring sensor 10 works in the prior art, as shown in fig. 1 and 2, the distance measuring sensor 10 is driven to move through the printing needle 9, the distance between the printing needle 9 and paper is measured through the distance measuring sensor 10, and therefore accuracy of adjustment of the height of the printing needle 9 to the paper is guaranteed, and accuracy of printing force when the printing needle 9 prints is guaranteed.

The upper surface of the middle position of the displacement driving component 8 is provided with a horizontal sensor 11, the horizontal sensor 11 is electrically connected with the control component 6, the horizontal sensor 11 works by adopting the prior art, as shown in fig. 1 and 3, the displacement driving component 8 drives the horizontal sensor 11 to move, and the horizontal state of the displacement driving component 8 is monitored by the horizontal sensor 11, so that the displacement driving component 8 keeps the horizontal state when lifting, and the quality of printing is prevented from being influenced by inclination.

The working principle is that as shown in fig. 6 and 7, the front guard plate 2 is used for sealing the shell 1, and under the action of the elasticity of the spring 44, the positioning block 45 is slidably arranged in the positioning groove 46 through the spring 44, so that the front guard plate 2 is fixed on the shell 1;

When the roller 38 is pressed on the paper, the height of the roller 38 changes, the roller 38 drives the thimble 34 to move through the mounting frame 37, the first slide bar 36 and the top plate 35, and the thimble 34 drives the slide sheet of the slide rheostat 33 to move through the thimble 34, so that the resistance value of the slide rheostat 33 is adjusted, and the thickness of the paper is detected through the resistance value change of the slide rheostat 33;

According to the thickness of the paper, as shown in fig. 1 and 3, the motor 51 drives the screw 52 to rotate, the screw 52 adjusts the heights of the displacement driving assembly 8 and the printing needle 9 through the sliding block 53, and the force during printing is adjusted through the adjustment of the height of the printing needle 9;

As shown in fig. 1 and fig. 3, the horizontal sensor 11 is driven to move by the displacement driving component 8, the horizontal state of the displacement driving component 8 after lifting and moving is monitored by the horizontal sensor 11, as shown in fig. 1 and fig. 2, the distance measuring sensor 10 is driven to move by the printing needle 9, and the distance between the printing needle 9 and paper is measured by the distance measuring sensor 10, so that the accuracy of the height adjustment from the printing needle 9 to the paper is ensured, and the accuracy of the printing force when the printing needle 9 prints is ensured;

as shown in fig. 1 and 6, the displacement driving assembly 8, the printing needle 9 and the ribbon assembly 12 cooperate to print the paper;

When the inside of the printer needs to be inspected, as shown in fig. 6 and 7, the handle 43 drives the second slide rod 42 and the positioning block 45 to move, so that the positioning block 45 is separated from the positioning groove 46, the fixation of the front guard plate 2 is released, and the front guard plate 2 can be opened to overhaul the inside of the printer.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (7)

1. The needle printer is suitable for automatically adjusting printing force and adjusting printing paper with different thicknesses and is characterized by comprising a shell (1), wherein a front guard plate (2) is rotatably arranged on the front side of the shell (1), an operation panel (7) is arranged on the upper surface of the shell (1), a measuring unit (3), a control assembly (6) and a lifting unit (5) are arranged in the shell (1), a displacement driving assembly (8) is arranged on the lifting unit (5), and a printing needle head (9) and a color ribbon assembly (12) are arranged on the displacement driving assembly (8);

The measuring unit (3) comprises a supporting rod (31) and first sliding rods (36), wherein the supporting rod (31) is arranged on two sides of the inside of the shell (1), mounting boxes (32) are mounted at the middle positions of the supporting rod (31), sliding varistors (33) are mounted in the mounting boxes (32), the first sliding rods (36) are slidably mounted on the mounting boxes (32), top plates (35) are mounted on the parts, located in the mounting boxes (32), of the first sliding rods (36), ejector pins (34) are mounted on the top plates (35), the ejector pins (34) are connected with sliding sheets of the sliding varistors (33), mounting frames (37) are mounted at the lower ends of the first sliding rods (36), electric rollers (39) are rotatably mounted on the mounting frames (37), and idler wheels (38) are mounted on the electric rollers (39).

2. The needle printer for automatically adjusting printing force adjustment for printing paper with different thickness according to claim 1, wherein the first sliding rod (36) is square.

3. The needle printer suitable for automatically adjusting printing force adjustment of printing paper with different thicknesses according to claim 1 is characterized in that the front guard plate (2) adopts a transparent plate.

4. The needle printer suitable for automatically adjusting printing force adjustment of printing paper with different thicknesses according to claim 1 is characterized in that the lifting unit (5) comprises motors (51), the motors (51) are arranged on two sides of the inside of the shell (1), screw rods (52) are arranged on output shafts of the two motors (51), sliding blocks (53) are connected onto the screw rods (52) in a threaded mode, and the two sliding blocks (53) are connected with two sides of the displacement driving assembly (8) respectively.

5. The needle printer suitable for automatically adjusting printing force adjustment of printing paper with different thicknesses according to claim 1 is characterized in that a fixing unit (4) is arranged on the shell (1), the fixing unit (4) comprises a containing groove (41), a second sliding rod (42) and a positioning groove (46), the containing groove (41) is arranged above the shell (1), the second sliding rod (42) is slidably mounted on the shell (1), a handle (43) and a positioning block (45) are respectively mounted at two ends of the second sliding rod (42), a spring (44) is sleeved on the part, located in the containing groove (41), of the second sliding rod (42), two ends of the spring (44) are respectively connected with the shell (1) and the positioning block (45), the positioning groove (46) is arranged on the front guard plate (2), and the positioning groove (46) is slidably connected with the positioning block (45).

6. The needle printer suitable for automatically adjusting printing force adjustment of printing paper with different thicknesses according to claim 1 is characterized in that a ranging sensor (10) is vertically arranged on the printing needle head (9).

7. The needle printer for automatically adjusting printing force adjustment for printing paper with different thicknesses according to claim 1 is characterized in that a level sensor (11) is arranged on the upper surface of the middle position of the displacement driving assembly (8).