A printhead position adjustment structure

Abstract

The application discloses a printing head position adjusting structure, which comprises a mounting plate, a heat dissipation plate detachably mounted in the mounting plate, a printing head fixedly mounted on the heat dissipation plate, a clamping groove formed in the heat dissipation plate, a nut assembly fixedly mounted on the top of the mounting plate, an adjusting bolt in threaded connection with the nut assembly, and a screwing end of the adjusting bolt clamped in the clamping groove. The printing head mounted on the heat dissipation plate can be adjusted in position, so that the printing effect is adjusted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of print head of printer, and particularly relates to a print head position adjusting structure. BACKGROUND

[0002] The thermal transfer printer, also known as a barcode printer, is a special printer, and the content printed by the thermal transfer printer is generally brand identification, serial number identification, packaging identification, barcode identification, envelope label, clothing tag and the like of an enterprise. The print head is the most important component of the barcode printer. The position of the print head of the existing barcode printer cannot be moved. When the barcode printer prints barcodes on paper sheets of different sizes, thicknesses and materials, the printing position is offset or the printing result is unclear, and the like. Therefore, the present application provides a print head position adjusting structure to solve the above problems. SUMMARY

[0003] The present application aims to overcome the shortcomings of the prior art and provide a print head position adjusting structure.

[0004] The present application achieves the above-mentioned purpose by the following technical scheme.

[0005] The print head position adjusting structure comprises a mounting plate, a heat dissipation plate is detachably mounted in the mounting plate, a print head is fixedly mounted on the heat dissipation plate, a clamping groove is formed in the heat dissipation plate, a nut assembly is fixedly mounted on the top of the mounting plate, the nut assembly is threadedly connected with an adjusting bolt, and the screwing end of the adjusting bolt is clamped in the clamping groove.

[0006] Preferably, the nut assembly comprises a nut body which is threadedly connected with the adjusting bolt, a clamping block is fixedly connected to the top surface of the nut body, a clamping hole is formed in the surface of the mounting plate on the top of the clamping block, and the clamping block is clamped into the clamping hole.

[0007] Preferably, a gasket is arranged in the clamping groove, and the gasket is located between the end surface of the adjusting bolt and the inner wall of the clamping groove.

[0008] Preferably, a first connecting screw is arranged between the heat dissipation plate and the print head, the heat dissipation plate and the print head are fixedly connected through the first connecting screw, and a first waist-shaped hole is formed in the top surface of the mounting plate to allow the first connecting screw to move.

[0009] Preferably, a second waist-shaped hole is formed in the surface of the mounting plate, a second connecting screw is arranged between the heat dissipation plate and the mounting plate for connection, and the screwing end of the second connecting screw is connected with the heat dissipation plate through the second waist-shaped hole.

[0010] Preferably, a through hole is formed in the end surface of the mounting plate and the heat dissipation plate to lead to the screwing end of the adjusting bolt.

[0011] Preferably, the adjusting bolt is an Allen bolt.

[0012] The present application has the following advantages:

[0013] 1. The present application adjusts the position of the printing head by rotating the adjusting bolt, since the adjusting bolt is in threaded connection with the nut assembly and the screwing end of the adjusting bolt is clamped into the clamping groove, so that the screwing end of the adjusting bolt is close to or away from the nut assembly, thereby bringing the heat sink close to or away from the nut assembly, so as to adjust the position of the printing head installed on the heat sink, thereby adjusting the printing effect.

[0014] 2. The present application fixes the nut body by clamping the clamping block into the clamping hole, so that the heat sink can be moved by the adjusting bolt during the rotation of the adjusting bolt, thereby moving the printing head installed on the heat sink and adjusting the position.

[0015] 3. The present application sets a gasket between the adjusting bolt and the inner wall of the clamping groove, which fills the gap between the adjusting bolt and the inner wall of the clamping groove, so as to accurately control the distance of the heat sink moved by the adjusting bolt during the rotation of the adjusting bolt, without affecting the adjusting distance due to the gap between the adjusting bolt and the clamping groove.

[0016] 4. The present application can precisely control the forward or backward adjustment of the printing head heating line position by rotating the adjusting bolt clockwise or counterclockwise.

[0017] 5. The present application sets a group of printing head heating line position adjusting mechanisms on the left and right sides, which can be adjusted individually or synchronously to realize the overall movement adjustment of the printing head heating line position. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall three-dimensional structure of the present application.

[0019] Figure 2 is a schematic diagram of the overall top view of the present application.

[0020] Figure 3 is a schematic diagram of the Figure 2 A-A cross-sectional view of the present application.

[0021] Figure 4 is a schematic diagram of the Figure 2 B-B cross-sectional view of the present application.

[0022] Figure 5 is a schematic diagram of the Figure 2 C-C cross-sectional view of the present application.

[0023] In the figure, 1, mounting plate; 2, heat dissipation plate; 3, print head; 4, through hole; 5, nut assembly; 51, nut body; 52, clamping block; 53, clamping hole; 6, clamping groove; 7, adjusting bolt; 8, gasket; 9, first waist hole; 10, first connecting screw; 11, second connecting screw; 12, second waist hole. DETAILED DESCRIPTION

[0024] To make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] In the description of the present application, it should also be noted that, unless explicitly specified and limited, the terms "arrange", "mount", "connect", "join" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances

[0026] As shown in the embodiments. Figure 1 Figure 5 As shown in the embodiments.

[0027] A print head position adjusting structure, comprising a mounting plate 1, a heat dissipation plate 2 is detachably mounted inside the mounting plate 1, a print head 3 is fixedly mounted on the heat dissipation plate 2, a clamping groove 6 is formed on the heat dissipation plate 2, a nut assembly 5 is fixedly mounted on the inner top of the mounting plate 1, an adjusting bolt 7 is threadedly connected with the nut assembly 5, and the screwing end of the adjusting bolt 7 is clamped in the clamping groove 6.

[0028] As shown in the embodiments. Figure 1 Figure 3 As shown in the embodiments, when the position of 3 is adjusted, the adjusting bolt 7 is first screwed to rotate, since the adjusting bolt 7 and the nut assembly 5 are threadedly connected, the adjusting bolt 7 moves to approach or away from the nut assembly 5 according to the different rotating directions, and since the screwing end of the adjusting bolt 7 is clamped into the clamping groove 6 and tightly abuts against the inner wall of the clamping groove 6, the adjusting bolt 7 moving drives the heat dissipation plate 2 provided with the clamping groove 6 to also move to approach or away from the nut assembly 5, so that the heat dissipation plate 2 drives the print head 3 to adjust the position, and the position of the print head 3 can be adjusted according to different printing effects.

[0029] ​​In this embodiment, there are two groups of nut assembly 5 and adjusting bolt 7 distributed in the two ends of the heat sink 2, as shown, the position of the print head 3 can be adjusted, or the print head 3 can be adjusted, the specific adjustment process is as described above. Figure 1

[0030] The nut assembly 5 includes a nut body 51 threaded with the adjusting bolt 7, and the top surface of the nut body 51 is fixedly connected with a clamping block 52, and the surface of the mounting plate 1 at the top of the clamping block 52 is provided with a clamping hole 53, and the clamping block 52 is clamped into the clamping hole 53.

[0031] Referring to Figure 3 and Figure 4 In order to enable the adjusting bolt 7 to drive the heat sink 2 to approach or away from the nut assembly 5, the nut assembly 5 needs to be fixed, so that the heat sink 2 is also approached or away from the nut assembly 5 under the premise of the adjusting bolt 7 approaching or away from the nut assembly 5, specifically, the clamping block 52 is clamped into the clamping hole 53 provided on the upper surface of the mounting plate 1, so that the clamping block 52 is fixed, and then the nut body 51 is fixed, the adjusting bolt 7 is threaded with the nut body 51, and the adjusting bolt 7 moves towards or away from the nut body 51 with the rotation of the adjusting bolt 7, thereby driving the heat sink 2 and the print head 3 to move.

[0032] Participate Figure 3 and Figure 4 In this embodiment, in order to facilitate better limiting of the nut body 51, a containing groove for placing the nut body 51 is also provided on the heat sink 2, and the nut body 51 is rectangular and adapted to the containing groove. Because of the blocking of the containing groove, the nut body 51 will not rotate. In this embodiment, the clamping block 52 is circular, which positions the nut body 51 and prevents the nut body 51 from moving forward and backward. During the adjustment process, because the heat sink 2 moves, the containing groove also moves, that is, the length of the containing groove is greater than the length of the nut body 51, so that the movement of the heat sink 2 does not interfere with the movement of the nut body 51. In other embodiments, the clamping block 52 can also be rectangular, square or other shapes, as long as it can position the nut body 51 and prevent it from moving

[0033] The clamping groove 6 is internally provided with a gasket 8, and the gasket 8 is located between the end face of the adjusting bolt 7 and the inner wall of the clamping groove 6.

[0034] Referring to Figure 3 ​As shown, the gap between the end face of the adjusting bolt 7 and the clamping groove 6 is filled by the gasket 8, so that when the adjusting bolt 7 is screwed, the force generated by the adjusting bolt 7 away from the nut assembly 5 directly acts on the heat sink 2 without needing to compensate the gap and then act on the heat sink 2, which makes the position adjustment of the heat sink 2 and the print head 3 more accurate and prevents the gap between the adjusting bolt 7 and the clamping groove 6 from affecting the adjustment accuracy.

[0035] A first connecting screw 10 is arranged between the heat sink 2 and the print head 3, and the heat sink 2 and the print head 3 are fixedly connected by the first connecting screw 10. A first waist-shaped hole 9 is formed in the top surface of the mounting plate 1 for the movement of the first connecting screw 10.

[0036] A second waist-shaped hole 12 is formed in the surface of the mounting plate 1, and a second connecting screw 11 is arranged between the heat sink 2 and the mounting plate 1 for connection. The screwing end of the second connecting screw 11 passes through the second waist-shaped hole 12 and is connected with the heat sink 2.

[0037] As shown in Figures 1 to 5 The heat sink 2 and the print head 3 are connected by the first connecting screw 10, and the first waist-shaped hole 9 is formed in the surface of the mounting plate 1 to avoid the movement of the first connecting screw 10. During the movement of the heat sink 2 and the print head 3, the screwing end of the first connecting screw 10 does not interfere with the movement of the mounting plate 1. Correspondingly, the heat sink 2 and the mounting plate 1 are connected by the second connecting screw 11. Before adjusting the position of the print head 3, the second connecting screw 11 needs to be loosened. During the movement of the heat sink 2, the second connecting screw 11 does not interfere with the movement of the mounting plate 1 due to the avoidance of the second waist-shaped hole 12. After adjustment, the second connecting screw 11 is screwed again to fix the heat sink 2.

[0038] The end faces of the mounting plate 1 and the heat sink 2 are both provided with through holes 4 leading to the screwing end of the adjusting bolt 7. The adjusting bolt 7 is an internal hexagonal bolt.

[0039] As shown in Figure 1 , Figure 3 Since the adjusting bolt 7 is located inside the heat sink 2, the tool needs to be inserted into the heat sink 2 to screw the adjusting bolt 7. In order to facilitate the search for the adjusting tool, the adjusting bolt 7 is provided with an internal hexagonal shape, that is, during adjustment, an internal hexagonal wrench is inserted into the internal hexagonal part of the adjusting bolt 7 through the through hole to drive the adjusting bolt 7 to rotate. The internal hexagonal wrench is commonly seen and can be purchased on the market. In other embodiments, the adjusting bolt 7 can also be an external hexagonal bolt, that is, during adjustment, a corresponding socket wrench needs to be inserted into the external hexagonal part of the adjusting bolt 7 through the through hole 4 to drive the adjusting bolt 7 to screw.

[0040] The working process of the present application is as follows: when adjustment is needed, first loosen the second connecting screw 11, then screw the adjusting tool through the through hole 4 to adjust the adjusting bolt 7, at this time the adjusting bolt 7 moves away from or approaches the nut assembly 5, because the adjusting bolt 7 is in close contact with the clamping groove 6, so when the adjusting bolt 7 moves away from or approaches the nut assembly 5, the heat dissipation plate 2 also moves in the direction of approaching or moving away from the nut assembly 5, thereby the position of the print head 3 mounted on the heat dissipation plate 2 can be adjusted, and after adjustment is completed, the second connecting screw 11 is screwed again to fix.

[0041] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can make modifications to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A printhead position adjustment structure, characterized by: The utility model provides a printing head fixing device, including installation plate (1), detachable installation has the heat dissipation plate (2) inside the installation plate (1), the heat dissipation plate (2) is fixedly installed with print head (3), the heat dissipation plate (2) is opened with the clamping groove (6), the nut assembly (5) is fixedly installed in the installation plate (1) top, the nut assembly (5) is screwed with the adjusting bolt (7), the clamping of the screwing end of adjusting bolt (7) is established in the clamping groove (6); The nut assembly (5) includes a nut body (51) that is threadedly connected to the adjusting bolt (7), the nut body (51) has a clamping block (52) fixedly connected to the top surface, the clamping block (52) has a clamping hole (53) formed in the surface of the installation plate (1) on the top, and the clamping block (52) is clamped into the clamping hole (53); The heat dissipation plate (2) and the print head (3) are provided with a first connecting screw (10), the heat dissipation plate (2) and the print head (3) are fixedly connected by the first connecting screw (10), and the top surface of the installation plate (1) is provided with a first waist-shaped hole (9) for the movement of the first connecting screw (10); The surface of the installation plate (1) is provided with a second waist-shaped hole (12), the heat dissipation plate (2) and the installation plate (1) are provided with a second connecting screw (11) for connection, and the second connecting screw (11) is connected to the heat dissipation plate (2) through the second waist-shaped hole (12); The heat dissipation plate (2) is provided with a containing groove for placing the nut body (51), and the nut body (51) is matched with the containing groove.

2. A printhead position adjustment structure according to claim 1, wherein: The clamping groove (6) is provided with a gasket (8) between the end surface of the adjusting bolt (7) and the inner wall of the clamping groove (6).

3. The printhead position adjustment structure of claim 1, wherein: The end surfaces of the installation plate (1) and the heat dissipation plate (2) are both provided with a through hole (4) leading to the screwing end of the adjusting bolt (7).

4. The printhead position adjustment structure of claim 1, wherein: The adjusting bolt (7) is an internal hexagonal bolt.

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