Mounting device of printing head mounting plate and printer

Abstract

The utility model discloses a printing head mounting plate mounting device and printer, the printing head mounting plate mounting device comprises a middle cover, a mounting plate, a spring, a rubber roller and a middle shell, the middle cover is provided with a fixing groove, the mounting plate is mounted on the middle cover, the end portion of the mounting plate is provided with a support member, the support member is located in the fixing groove, and the middle shell is fixed on the mounting plate. A printing head is further fixedly mounted on the mounting plate, at least one spring is located between the middle cover and the mounting plate and used for driving the mounting plate to be away from the middle cover, the rubber roller is located at the position of the mounting plate and abuts against the surface of the printing head, and the middle shell is located on the side away from the middle cover and rotationally mounted on the middle shell. According to the utility model, when the rubber roller performs paper feeding rotation or paper unwinding rotation, the mounting plate is driven to rotate at a certain angle, so that the supporting piece is propped against the inner wall of the fixing groove, the rotation angle of the mounting plate is limited within a certain angle range, the supporting piece is positioned at a corresponding printing position, and the phenomenon of fuzzy printing is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to printer technical field, especially a kind of installation device of print head mounting plate and printer. BACKGROUND

[0002] In the technical field of printing equipment, especially in the machine involving high-precision printing operation, the stability and accurate positioning of the head piece mounting plate assembly are crucial to ensure printing quality. In traditional design, when the machine performs a paper return operation, the rubber roller usually rotates in a counterclockwise direction. This rotating action causes the head piece mounting plate assembly to flip backward, providing space for the smooth exit of the paper. However, there is a critical problem in this process: if the flip angle of the head piece mounting plate assembly is not effectively controlled, i.e., the flip angle is too large or lacks the necessary limiting mechanism, it will directly cause the heating wire on the head piece to deviate from its preset optimal printing position. This deviation in position significantly affects printing accuracy, commonly manifested as blurred printing content, distorted images, and in severe cases, even causing printing operation failure. To address this issue, we provide a kind of installation device of print head mounting plate and printer. SUMMARY

[0003] The utility model aims at overcoming the shortcomings of prior art, provide a kind of installation device of print head mounting plate and printer.

[0004] The utility model achieves the purpose by the following technical scheme:

[0005] A kind of installation device of print head mounting plate, comprising:

[0006] Middle cover, the fixed slot is opened in the middle cover;

[0007] Mounting plate, the mounting plate is installed on the middle cover, the mounting plate end is provided with support piece, the support piece is located in the fixed slot, and the mounting plate is also fixedly installed with print head;

[0008] Spring, at least one spring is located between the middle cover and the mounting plate, and the spring is used to drive the mounting plate away from the middle cover;

[0009] Rubber roller, the rubber roller is located at the position of the mounting plate, and the rubber roller is in surface abutment with the print head;

[0010] Middle shell, the middle shell is located away from the middle cover side, the rubber roller is rotatably installed on the middle shell, and the middle shell is located below the mounting plate.

[0011] Preferably, the side of the mounting plate towards the middle shell direction is provided with side plate at both ends, and the side plate is provided with second limiting slot adapted to the rubber roller.

[0012] Preferably, the support piece comprises a connecting arm connected with the mounting plate, the end of the connecting arm is respectively provided with a first positioning protrusion and a second positioning protrusion, and the first positioning protrusion and the second positioning protrusion are located in the fixing groove, the first positioning protrusion is located on the upper surface of the end of the connecting arm, and the second positioning protrusion is located on the lower surface of the end of the connecting arm.

[0013] Preferably, a positioning column is integrally arranged on the surface of the middle cover facing the mounting plate, and the spring is sleeved on the positioning column and abuts against the middle cover.

[0014] Preferably, a positioning groove is arranged on the surface of the mounting plate facing the middle cover, and the end of the spring away from the middle cover abuts against the positioning groove.

[0015] Preferably, the two ends of the mounting plate are provided with limiting columns, the two ends of the middle cover are provided with first limiting grooves, and the limiting columns are arranged in the first limiting grooves on the same side.

[0016] Preferably, the first limiting groove is in a U shape.

[0017] A printer comprises the mounting device of any one of the mounting devices.

[0018] The utility model has the following advantages:

[0019] 1. When the rubber roller rotates for feeding paper or discharging paper, the mounting plate is rotated by a certain angle, so that the support piece abuts against the inner wall of the fixing groove, thereby limiting the rotation angle of the mounting plate within a certain angle, and the support piece is located at a corresponding printing position, thereby preventing the occurrence of printing blur.

[0020] 2. The second limiting groove on the side plate on both sides of the mounting plate limits the position of the rubber roller.

[0021] 3. When the support piece abuts against the inner wall of the fixing groove to limit the mounting plate, the first positioning protrusion abuts against the inner top wall of the fixing groove or the second positioning protrusion abuts against the inner bottom wall of the fixing groove to limit the rotation angle of the mounting plate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is an explosion state structure schematic view of the mounting device.

[0023] Figure 2 It is a mounting plate structure schematic view of the utility model.

[0024] Figure 3 It is a middle cover structure schematic view of the utility model.

[0025] Figure 4 It is the enlarged structural schematic view of the position relation of the support and the fixed groove under the paper feeding state of the rubber roller of the installation device of the utility model.

[0026] Figure 5 It is the enlarged structural schematic view of the position relation of the support and the fixed groove under the paper feeding state of the rubber roller of the installation device of the utility model.

[0027] Figure 6 It is the enlarged structural schematic view of the position relation of the support and the fixed groove under the paper feeding state of the rubber roller of the installation device of the utility model.

[0028] Figure 7 It is the enlarged structural schematic view of the position relation of the support and the fixed groove under the paper feeding state of the rubber roller of the installation device of the utility model.

[0029] Figure 8 It is the enlarged structural schematic view of the position relation of the support and the fixed groove under the paper feeding state of the rubber roller of the installation device of the utility model.

[0030] Figure 9 It is the enlarged structural schematic view of the position relation of the support and the fixed groove under the paper feeding state of the rubber roller of the installation device of the utility model.

[0031] Figure 10 It is the position relation schematic view of the limiting column and the first limiting groove under the state that the middle cover is not connected with the middle shell of the utility model.

[0032] Figure 11 It is the position relation schematic view of the limiting column and the first limiting groove under the state that the middle cover is not connected with the middle shell of the utility model.

[0033] In the drawing, 100, middle cover;110, fixed groove;120, first limiting groove;200, installation plate;210, support;211, connecting arm;212, first positioning protrusion;213, second positioning protrusion;220, print head;230, limiting column;240, side plate;250, second limiting groove;300, spring;400, rubber roller;500, middle shell;600, positioning column;700, positioning groove. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantage of the embodiment of the utility model more clear, the technical scheme in the embodiment of the utility model will be described clearly and completely below by combining with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. The components of the embodiment of the utility model described and shown in the drawing here can be arranged and designed in various different configurations.

[0035] In the description of the utility model, it also needs to be explained that, unless there is explicit provision and limitation, the terms "arrange", "install", "connect" and "connect" should be understood broadly, for example, it can be fixed connection, or it can be detachable connection, or it can be integrally connected, it can be mechanical connection, or it can be electrical connection, it can be directly connected, or it can be indirectly connected through intermediate medium, it can be the communication inside two elements, for ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0036] As shown in the embodiment. Figure 1 — Figure 11 As shown in the embodiment.

[0037] An installation device of a printing head mounting plate, including middle cover 100, mounting plate 200, spring 300, rubber roller 400, middle shell 500, the fixed groove 110 is set up on the middle cover 100, the mounting plate 200 is installed on the middle cover 100, the mounting plate 200 end is provided with support 210, the support 210 is located in the fixed groove 110, the printing head 220 is also fixedly installed on the mounting plate 200, the spring 300 is at least one between the middle cover 100 and the mounting plate 200, the spring 300 is used to drive the mounting plate 200 away from the middle cover 100, the rubber roller 400 is located at the position of the mounting plate 200, and the rubber roller 400 is in surface abutment with the printing head 220, the middle shell 500 is located on the side away from the middle cover 100, the rubber roller 400 is rotatably installed on the middle shell 500, and the middle shell 500 is located below the mounting plate 200.

[0038] Referring to Figures 1 to 9 When the rubber roller 400 rotates to feed paper or rotate to retreat paper, the outer surface of the rubber roller 400 is in surface abutment with the surface of the printing head 220, so that the rubber roller 400 drives the mounting plate 200 to rotate by a certain angle through the printing head 220, specifically, the support 210 is in abutment with the inner wall of the fixed groove 110 during the rotation of the mounting plate 200, the abutment of the support 210 and the fixed groove 110 limits the rotation of the mounting plate 200 within a certain angle, so that the printing head 220 can work in the preset area all the time, preventing the occurrence of printing blur phenomenon during printing.

[0039] It can be understood that the spring 300 is arranged between the middle cover 100 and the mounting plate 200, so that the mounting plate 200 always has a downward moving force under the elastic force of the spring 300, therefore, the support 210 on the mounting plate 200 abuts against the outer surface of the rubber roller 400, thereby meeting the printing requirements.

[0040] The side plate 240 is arranged at both ends of the side of the mounting plate 200 facing the direction of the middle shell 500, and the second limiting groove 250 is arranged on the side plate 240.

[0041] As shown in Figure 1 and Figure 2 in order to be able to position the mounting plate 200 in the front-rear direction, the side plate 240 is arranged on both sides of the mounting plate 200, and the second limiting groove 250 is arranged on the surface of each side plate 240 facing the direction of the rubber roller 400. Specifically, the rubber roller 400 has corresponding shafts at both ends, and when the middle cover 100 is combined and connected with the middle shell 500, the shafts at both ends of the rubber roller 400 enter the second limiting groove 250, thereby achieving position positioning, limiting the change of the mounting plate 200 in the front-rear direction, and under the elastic force of the spring 300, the second limiting groove 250 can cover the shafts at both ends of the rubber roller 400.

[0042] The support 210 comprises a connecting arm 211 connected with the mounting plate 200, and the end of the connecting arm 211 is respectively provided with a first positioning protrusion 212 and a second positioning protrusion 213, and the first positioning protrusion 212 and the second positioning protrusion 213 are both located in the fixing groove 110. The first positioning protrusion 212 is located on the upper surface of the end of the connecting arm 211, and the second positioning protrusion 213 is located on the lower surface of the end of the connecting arm 211.

[0043] As shown in Figures 4 to 9 in order to enable the support 210 to abut against the inner wall of the fixing groove 110 and have a force point, the first positioning protrusion 212 and the second positioning protrusion 213 are arranged at the upper and lower ends of the end of the connecting arm 211, respectively.

[0044] As shown in Figure 4 and Figure 7 in the initial state, the end of the connecting arm 211 is located at the middle position of the fixing groove 110, that is, the first positioning protrusion 212 does not abut against the inner top wall of the fixing groove 110, and the second positioning protrusion 213 does not abut against the inner bottom wall of the fixing groove 110, at this time, the rubber roller 400 is in a static state, that is, the rubber roller 400 does not rotate at this time.

[0045] As shown in Figure 5 and Figure 8As shown, the rubber roller 400 rotates to achieve normal paper feeding. As the rubber roller 400 rotates, it drives the mounting plate 200 to flip at a certain angle. When the mounting plate 200 flips at a certain angle, the first positioning protrusion 212 at the end of the connecting arm 211 will abut against the inner top wall of the fixing groove 110. The resistance is transmitted to the mounting plate 200 through the first positioning protrusion 212 and the connecting arm 211, preventing the mounting plate 200 from continuing to flip, thereby limiting the flipping angle of the mounting plate 200 and keeping the support 210 within the preset range.

[0046] Please see Figure 6 and Figure 9 As shown, the rubber roller 400 is in the paper feeding state at this time. As the rubber roller 400 rotates, it drives the mounting plate 200 to rotate at a certain angle. At this time, the direction of rotation of the mounting plate 200 is opposite to the direction of rotation of the mounting plate 200 in the normal paper feeding state. Therefore, the second positioning protrusion 213 at the end of the connecting arm 211 will abut against the inner bottom wall of the fixing groove 110, and the resistance will be transmitted to the mounting plate 200 through the second positioning protrusion 213 and the connecting arm 211, preventing the mounting plate 200 from continuing to rotate, thereby limiting the rotation angle of the mounting plate 200, so that the support 210 is always within the preset range.

[0047] A positioning post 600 is integrally provided on the surface of the middle cover 100 facing the mounting plate 200, and the spring 300 is sleeved on the positioning post 600 and abuts against the middle cover 100; a positioning groove 700 is formed on the surface of the mounting plate 200 facing the middle cover 100, and the end of the spring 300 away from the middle cover 100 abuts against the positioning groove 700.

[0048] Please see Figure 7 and Figure 9 As shown, in order to prevent the spring 300 located between the middle cover 100 and the mounting plate 200 from shifting or tilting, a positioning groove 700 is provided on the mounting plate 200, and a positioning post 600 is provided on the middle cover 100. The spring 300 is sleeved on the positioning post 600, and the other end of the spring 300 abuts against the inner bottom wall of the positioning groove 700, thereby achieving the positioning of the spring 300 under the action of the positioning post 600 and the positioning groove 700.

[0049] The mounting plate 200 is provided with limit posts 230 at both ends, and the middle cover 100 is provided with first limit grooves 120 at both ends. The limit posts 230 are placed in the first limit grooves 120 on the same side, and the first limit grooves 120 are U-shaped.

[0050] Please see Figure 10 and Figure 11As shown, in order to further enable the position limitation between the mounting plate 200 and the middle cover 100, a first limiting groove 120 is formed on the middle cover 100, and the limiting columns 230 on both sides of the mounting plate 200 are located inside the first limiting groove 120 on the same side, so that the position of the mounting plate 200 in the front-rear direction can be limited, but since the first limiting groove 120 has an upper opening, the position of the mounting plate 200 in the up-down direction is not limited, and the upper opening of the first limiting groove 120 is used to avoid the upward movement of the mounting plate 200 when the mounting plate 200 is flipped over.

[0051] In the embodiment, when the middle cover 100 and the middle shell 500 are connected, the mounting plate 200 is always subjected to the elastic force from the spring 300, so that the mounting plate 200 is always moved downward under the action of the elastic force, and the limiting columns 230 of the mounting plate 200 abut against the inner bottom wall of the first limiting groove 120, as shown in the state. Figure 10 When the middle cover 100 and the middle shell 500 are connected, and the rubber roller 400 rotates to give the mounting plate 200 a flipping force upward, at this time, the limiting columns 230 are in a suspended state in the first limiting groove 120, as shown in the state. Figure 11

[0052] The application also provides a printer comprising the mounting device of the printhead mounting plate.

[0053] The working process of the utility model is as follows: the middle cover 100 and the middle shell 500 are combined and installed, at this time, the second limiting groove 250 is located at both ends of the rubber roller 400, so as to limit the position of the mounting plate 200 in the front-rear direction, when the rubber roller 400 rotates to drive the mounting plate 200 to flip over by a certain angle, at this time, the first positioning protrusion 212 abuts against the inner top wall of the fixed groove 110 or the second positioning protrusion 213 abuts against the inner bottom wall of the fixed groove 110, so as to prevent the mounting plate 200 from continuing to flip over, so that the mounting plate 200 can only flip over within a certain angle, and the supporting piece 210 is always located in the preset area position, so as to prevent the occurrence of printing blur and other phenomena.

[0054] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model shall be included in the protection scope of the utility model.​

Claims

1. A mounting apparatus for a printhead mounting plate, characterized by, It comprises: a middle cover (100) with a fixing groove (110) formed thereon; a mounting plate (200) mounted on the middle cover (100), the mounting plate (200) being provided with a support (210) at the end thereof, the support (210) being located in the fixing groove (110), and the mounting plate (200) being further provided with a print head (220) fixedly mounted thereon; a spring (300) located between the middle cover (100) and the mounting plate (200), the spring (300) being used to drive the mounting plate (200) away from the middle cover (100); a rubber roller (400) located at the position of the mounting plate (200), and the rubber roller (400) abutting against the surface of the print head (220); a middle shell (500) located on the side away from the middle cover (100), the rubber roller (400) being rotatably mounted on the middle shell (500), and the middle shell (500) being located below the mounting plate (200).

2. A mounting arrangement for a printhead mounting plate according to claim 1, characterised in that: The side surface of the mounting plate (200) facing the middle shell (500) is provided with side plates (240) at both ends thereof, and the side plates (240) are provided with second limiting grooves (250) adapted to the rubber roller (400).

3. A mounting arrangement for a printhead mounting plate according to claim 1, characterised in that: The support (210) comprises a connecting arm (211) connected with the mounting plate (200), the connecting arm (211) being provided with a first positioning protrusion (212) and a second positioning protrusion (213) at the ends thereof, and the first positioning protrusion (212) and the second positioning protrusion (213) are both located in the fixing groove (110), the first positioning protrusion (212) being located on the upper surface of the end of the connecting arm (211), and the second positioning protrusion (213) being located on the lower surface of the end of the connecting arm (211).

4. The mounting apparatus for a printhead mounting plate of claim 1, wherein: The middle cover (100) is integrally provided with a positioning column (600) on the surface thereof facing the mounting plate (200), and the spring (300) is sleeved on the positioning column (600) and abuts against the middle cover (100).

5. The mounting apparatus for a printhead mounting plate of claim 1, wherein: The mounting plate (200) is provided with a positioning groove (700) on the surface thereof facing the middle cover (100), and the end of the spring (300) away from the middle cover (100) abuts against the positioning groove (700).

6. The mounting apparatus for a printhead mounting plate of claim 1, wherein: Both ends of the mounting plate (200) are provided with limiting columns (230), and the middle cover (100) is provided with first limiting grooves (120) at both ends thereof, and the limiting columns (230) are located in the first limiting grooves (120) on the same side.

7. A mounting arrangement for a printhead mounting plate according to claim 6, wherein: The first limiting groove (120) is in the shape of "U".

8. A printer characterized by: The installation device comprises the mounting plate of any one of claims 1 to 7.

Images