阅读说明：本技术 可调整加热线与胶辊受压线相对位置的调节结构 (Adjusting structure capable of adjusting relative position of heating wire and rubber roller compression wire ) 是由 田德萍 于 2021-08-21 设计创作，主要内容包括：本发明公开了一种结构简单、方便操作、调节精度高且能有效使加热线与胶辊受压线重叠的可调整加热线与胶辊受压线相对位置的调节结构。包括依次设置的基准板、活动调节板和背基板,所述基准板固定在打印机的机架上,打印头固接在所述背基板上,基准板与活动调节板之间设置有第一垂调结构、活动调节板与背基板之间设置有第一平调结构,或者基准板与活动调节板之间设置第二平调结构、活动调节板与背基板之间设置第二垂调结构,通过调节垂调结构和平调结构使得加热线与胶辊受压线重叠。该结构可实现细微角度的可靠调整,降低了调节难度；还可以保证打印头在锁定之后能可靠固定,不会在使用过程中受到外力而发生错位滑动；重复定位精度非常高,可以实现精准定位。(The invention discloses an adjusting structure capable of adjusting the relative position of a heating wire and a rubber roller pressure line, which has the advantages of simple structure, convenience in operation, high adjusting precision and capability of effectively overlapping the heating wire and the rubber roller pressure line. Including benchmark board, activity regulating plate and the back of the body base plate that sets gradually, the benchmark board is fixed in the frame of printer, beats the printer head rigid coupling and is in on the back of the body base plate, be provided with the first structure of hanging down between benchmark board and the activity regulating plate, be provided with first leveling structure between activity regulating plate and the back of the body base plate, perhaps set up the second structure of hanging down between benchmark board and the activity regulating plate, set up the second between activity regulating plate and the back of the body base plate and hang down the accent structure, make heater wire and rubber roll pressurized line overlap through adjusting the structure of hanging down and leveling structure. The structure can realize the reliable adjustment of a fine angle, and the adjustment difficulty is reduced; the printing head can be reliably fixed after being locked, and the printing head cannot slide in a dislocation manner due to external force in the using process; the repeated positioning precision is very high, and accurate positioning can be realized.)

1. The utility model provides an adjustable heating wire and rubber roll pressurized line relative position's regulation structure which characterized in that: the printing device comprises a reference plate, a movable adjusting plate and a back substrate which are sequentially arranged, wherein the reference plate is fixed on a rack of a printer, a printing head is fixedly connected onto the back substrate, a first vertical adjusting structure capable of adjusting the size of a vertical plane included angle formed by the crossed projection of an extension line of a heating line and an extension line of a rubber roller pressed line in a vertical plane is arranged between the reference plate and the movable adjusting plate, and a first horizontal adjusting structure capable of adjusting the size of a plane included angle formed by the crossed projection of the extension line of the heating line and the extension line of the rubber roller pressed line in a horizontal plane is arranged between the movable adjusting plate and the back substrate; or a second adjusting structure capable of adjusting the size of a plane included angle formed by the crossed projection of the extension line of the heating line and the extension line of the rubber roller pressed line in the horizontal plane is arranged between the reference plate and the movable adjusting plate, and a second adjusting structure capable of adjusting the size of a vertical plane included angle formed by the crossed projection of the extension line of the heating line and the extension line of the rubber roller pressed line in the vertical plane is arranged between the movable adjusting plate and the back substrate.

2. The adjustable heating wire and rubber roll pressure line relative position adjusting structure of claim 1, characterized in that: the first vertical adjusting structure consists of a vertical adjusting pin hole, a vertical adjusting pin shaft, a vertical adjusting hole, a vertical adjusting screw hole and a vertical adjusting screw which are respectively arranged on the reference plate and the movable adjusting plate, wherein,

the reference plate is in an inverted L shape and is divided into a transverse plate and a vertical plate, the transverse plate is fixed on the rack, the vertical adjusting pin hole is formed in one end of the vertical plate, and the vertical adjusting hole is formed in the transverse plate corresponding to the other end, opposite to the vertical adjusting pin hole, of the vertical plate;

the movable adjusting plate consists of a transverse adjusting plate and a vertical adjusting plate, the vertical adjusting plate is arranged in an included angle formed by the transverse plate and the vertical plate, the transverse adjusting plate is arranged below the transverse plate and extends towards the direction of the printing head, a vertical adjusting pin hole is also arranged at the position, opposite to the vertical adjusting pin hole, on the vertical adjusting plate, and the vertical adjusting screw hole is arranged at the position, opposite to the vertical adjusting hole, on the top surface of the vertical adjusting plate;

the vertical adjusting pin shaft is inserted into the two vertical adjusting pin holes to connect the reference plate with the movable adjusting plate, and the vertical adjusting screw is sequentially inserted into the vertical adjusting hole and the vertical adjusting screw hole to adjust the vertical included angle between the horizontal plate of the reference plate and the top surface of the vertical adjusting plate of the movable adjusting plate.

3. The adjustable heating wire and rubber roll pressure line relative position adjusting structure of claim 2, characterized in that: the first leveling structure consists of leveling pin holes, leveling pin shafts, leveling holes, leveling screw holes and leveling screws which are respectively arranged on the movable adjusting plate and the back base plate, wherein,

the bottom surface of the back substrate is fixedly connected with the printing head, and the top surface of the back substrate is arranged below the transverse adjusting plate of the movable adjusting plate;

the horizontal adjusting pin hole is arranged at one end of the horizontal adjusting plate of the movable adjusting plate, and correspondingly, the horizontal adjusting pin hole is also arranged on the top surface of the back base plate; the leveling holes are formed in the front side face of the back base plate corresponding to the other end, opposite to the leveling pin holes, of the leveling pin hole, and the leveling screw holes are formed in the front side face of the vertical adjusting plate opposite to the leveling holes;

the movable adjusting plate is connected with the back base plate by inserting the horizontal adjusting pin shaft into the two horizontal adjusting pin holes, and the horizontal adjusting screw is inserted into the horizontal adjusting hole and the horizontal adjusting screw hole to adjust the horizontal included angle between the rear side surface of the back base plate and the vertical adjusting plate of the movable adjusting plate.

4. The adjustable heating wire and rubber roll pressure line relative position adjusting structure of claim 1, characterized in that: the second leveling structure consists of leveling pin holes, leveling pin shafts, leveling holes, leveling screw holes and leveling screws which are respectively arranged on the reference plate and the movable adjusting plate, wherein,

the reference plate is in an inverted L shape and is divided into a transverse straight plate and a vertical plate, the transverse straight plate is fixed on the rack, the leveling pin hole is formed in one end of the transverse straight plate, and the leveling hole is formed in the vertical plate corresponding to the other end, opposite to the leveling pin hole, of the transverse straight plate;

the movable adjusting plate consists of a transverse adjusting plate and a vertical adjusting plate, the vertical adjusting plate is arranged in an included angle formed by the transverse straight plate and the vertical plate, the transverse adjusting plate is arranged below the transverse straight plate and extends towards the direction of the printing head, a horizontal adjusting pin hole is also arranged at the position, opposite to the horizontal adjusting pin hole, on the top surface of the transverse adjusting plate or the vertical adjusting plate, and the horizontal adjusting screw hole is arranged at the position, opposite to the horizontal adjusting hole, on the rear side surface of the vertical adjusting plate;

the horizontal adjusting pin shaft is inserted into the two horizontal adjusting pin holes to connect the reference plate with the movable adjusting plate, and the horizontal adjusting screw is sequentially inserted into the horizontal adjusting hole and the horizontal adjusting screw hole to adjust the horizontal included angle between the vertical plate of the reference plate and the vertical adjusting plate of the movable adjusting plate.

5. The structure of claim 4 for adjusting the relative position of the heating wire and the pressing wire of the rubber roller, wherein: the second vertical adjusting structure consists of a vertical adjusting pin hole, a vertical adjusting pin shaft, a vertical adjusting hole, a vertical adjusting screw hole and a vertical adjusting screw which are respectively arranged on the movable adjusting plate and the back base plate, wherein,

the bottom surface of the back substrate is fixedly connected with a printing head and is arranged below a transverse adjusting plate of the movable adjusting plate;

the vertical adjusting pin hole is arranged at one end of the front side surface of the back substrate, and correspondingly, the vertical adjusting pin hole is also arranged on the front side surface of the vertical adjusting plate of the movable adjusting plate; the vertical adjusting holes are formed in the transverse adjusting plate corresponding to the other end, opposite to the vertical adjusting pin holes, and the vertical adjusting screw holes are formed in the top surface of the back substrate opposite to the vertical adjusting holes;

the back substrate is connected with the movable adjusting plate by inserting the vertical adjusting pin shaft into the two vertical adjusting pin holes, and the vertical included angle between the top surface of the back substrate and the horizontal adjusting plate of the movable adjusting plate is adjusted by inserting the vertical adjusting screw into the vertical adjusting hole and the vertical adjusting screw hole.

6. The adjusting structure for adjusting the relative position of the heating wire and the rubber roller pressing wire as claimed in claim 3 or 5, wherein: the transverse distance from the vertical adjusting pin hole to the vertical adjusting screw hole is smaller than the length of the heating wire of the printing head, and the difference value is 5% -60% of the length of the heating wire.

7. The adjustable heating wire and rubber roll pressure line relative position adjusting structure of claim 6, characterized in that: the transverse distance from the leveling pin hole to the leveling screw hole is smaller than the length of the heating wire of the printing head, and the difference is 5% -60% of the length of the heating wire.

8. The adjustable heating wire and rubber roll pressure line relative position adjusting structure of claim 7, characterized in that: in the first vertical adjustment structure, a vertical plate of the reference plate is provided with a vertical adjustment locking bolt which can lock and fix the reference plate and the movable adjustment plate, and in the first horizontal adjustment structure, a horizontal adjustment locking bolt which can lock the movable adjustment plate and the back base plate is arranged on a horizontal adjustment plate of the movable adjustment plate; in the second vertical adjusting structure, a vertical adjusting locking bolt capable of locking the space between the back substrate and the movable adjusting plate is arranged on the front side surface of the back substrate, and in the second horizontal adjusting structure, a horizontal adjusting locking bolt capable of locking and fixing the space between the reference plate and the movable adjusting plate is arranged on the horizontal straight plate of the reference plate.

9. The adjustable heating wire and rubber roll compression wire relative position adjusting structure of claim 8, characterized in that: compression springs are arranged in the vertical adjusting screw hole and the horizontal adjusting screw hole.

10. The adjustable heating wire and rubber roll compression wire relative position adjusting structure of claim 9, characterized in that: the included angle formed between the bottom surface of the back substrate and the horizontal plane is 0-30 degrees.

Technical Field

The invention relates to a thermal transfer printer, in particular to an adjusting structure for ensuring the overlapping of a heating line and a rubber roller pressure line.

Background

The invention relates to a heating wire and a rubber roller pressed line of a printing head of a thermal transfer printer (wherein the rubber roller pressed line refers to that when the thermal printer prints a printing medium, the printing medium is pressed on the rubber roller by the printing head with a certain pressure, under an ideal printing state, the printing medium is in equidistant and gapless contact with the rubber roller, and a contact straight line is formed on the rubber roller.

In the prior art, a printing head is mounted on a fixing plate, the fixing plate is fixedly mounted on a frame, and the position of the printing head in a horizontal plane is adjusted by adjusting the relative position between the printing head and the fixing plate or by adjusting the relative position between the fixing plate and the frame, and there are generally two ways:

1) the relative position between the print head and the fixing plate is adjusted.

The horizontal rigid coupling of fixed plate is in the frame, and the interval sets up two bar holes on the fixed plate, passes the bar hole through the screw and will beat printer head locking on the bottom surface of fixed plate. Whether the heating wire of the printing head is overlapped with the rubber roller pressed line or not is observed through the printing effect, if the overlapping effect is not good, the overlapping state of the heating wire of the printing head and the rubber roller pressed line can be adjusted by unscrewing the screw to rotate the printing head forwards, backwards or left and right.

2) The relative position between the fixed plate and the frame is adjusted.

The printer head is fixed on the bottom surface of the fixing plate, the lug plates are arranged on two side edges of the fixing plate, the strip-shaped holes are formed in the lug plates, and the printer head is locked on the rack by the fixing plate through the screws penetrating through the strip-shaped holes. Whether the heater wire of printer head overlaps with rubber roll pressurized line when printing is observed through printing the effect, if it is not good to overlap the effect, accessible unscrew screw forward, backward or turn about the fixed plate and adjust the overlapping state of printer head's heater wire and rubber roll pressurized line.

The above-mentioned regulation method has the following disadvantages:

1) the adjustment needs an experienced operator to adjust according to observation, in addition, the relative position between the printing head and the fixed plate is firstly determined or the relative position between the fixed plate and the rack is determined and preliminarily locked (but the relative position cannot be completely locked), then printing is carried out and the printing effect is checked, if the printing is not clear, the printing head or the fixed plate is knocked to enable the printing head or the fixed plate to slightly move, so that the heating line of the printing head and the pressed line of the printing head and the rubber roller are overlapped as much as possible, and the printing head is locked on the fixed plate or the fixed plate is locked on the rack after the good printing effect is achieved. The operation is cumbersome and the adjustment effect is not good.

2) The method for moving the positions of the printing head and the fixing plate by knocking the printing head is not good in control, the printing head is easy to move over or not in place, the knocking position is required to be determined according to the printing effect when the knocking position is found, and the method has high requirements on operators.

3) After the position is adjusted, the printing head and the fixing plate are required to be completely locked, and the relative positions of the printing head and the fixing plate are easily moved for the second time when the fixing screw is locked, so that the printing effect is poor.

4) The fixed orifices on the fixed plate are strip-shaped holes, and other structural connections which limit dislocation movement are not available, even if the locking fixed screws lock and fix the printing head and the fixed plate, dislocation movement between parts can occur in the using process, and therefore the printing effect is poor.

Disclosure of Invention

The invention aims to solve the technical problem of providing an adjusting structure which is simple in structure, convenient to operate, high in adjusting precision and capable of effectively enabling a heating wire and a rubber roller pressed line to be overlapped and adjusting the relative position of the heating wire and the rubber roller pressed line.

In order to solve the technical problems, the invention adopts the following technical scheme:

an adjusting structure capable of adjusting the relative position of a heating wire and a rubber roller pressed wire comprises a reference plate, a movable adjusting plate and a back base plate which are sequentially arranged, wherein the reference plate is fixed on a frame of a printer, a printing head is fixedly connected to the back base plate, a first vertical adjusting structure capable of adjusting the size of a vertical plane included angle formed by the crossed projection of an extension line of the heating wire and an extension line of the rubber roller pressed wire in a vertical plane is arranged between the reference plate and the movable adjusting plate, and a first horizontal adjusting structure capable of adjusting the size of a plane included angle formed by the crossed projection of the extension line of the heating wire and the extension line of the rubber roller pressed wire in a horizontal plane is arranged between the movable adjusting plate and the back base plate; or a second adjusting structure capable of adjusting the size of a plane included angle formed by the crossed projection of the extension line of the heating line and the extension line of the rubber roller pressed line in the horizontal plane is arranged between the reference plate and the movable adjusting plate, and a second adjusting structure capable of adjusting the size of a vertical plane included angle formed by the crossed projection of the extension line of the heating line and the extension line of the rubber roller pressed line in the vertical plane is arranged between the movable adjusting plate and the back substrate.

The first vertical adjusting structure consists of a vertical adjusting pin hole, a vertical adjusting pin shaft, a vertical adjusting hole, a vertical adjusting screw hole and a vertical adjusting screw which are respectively arranged on the reference plate and the movable adjusting plate, wherein,

the reference plate is in an inverted L shape and is divided into a transverse plate and a vertical plate, the transverse plate is fixed on the rack, the vertical adjusting pin hole is formed in one end of the vertical plate, and the vertical adjusting hole is formed in the transverse plate corresponding to the other end, opposite to the vertical adjusting pin hole, of the vertical plate;

the movable adjusting plate consists of a transverse adjusting plate and a vertical adjusting plate, the vertical adjusting plate is arranged in an included angle formed by the transverse plate and the vertical plate, the transverse adjusting plate is arranged below the transverse plate and extends towards the direction of the printing head, a vertical adjusting pin hole is also arranged at the position, opposite to the vertical adjusting pin hole, on the vertical adjusting plate, and the vertical adjusting screw hole is arranged at the position, opposite to the vertical adjusting hole, on the top surface of the vertical adjusting plate;

the vertical adjusting pin shaft is inserted into the two vertical adjusting pin holes to connect the reference plate with the movable adjusting plate, and the vertical adjusting screw is sequentially inserted into the vertical adjusting hole and the vertical adjusting screw hole to adjust the vertical included angle between the horizontal plate of the reference plate and the top surface of the vertical adjusting plate of the movable adjusting plate.

The first leveling structure consists of leveling pin holes, leveling pin shafts, leveling holes, leveling screw holes and leveling screws which are respectively arranged on the movable adjusting plate and the back base plate, wherein,

the bottom surface of the back substrate is fixedly connected with the printing head, and the top surface of the back substrate is arranged below the transverse adjusting plate of the movable adjusting plate;

the horizontal adjusting pin hole is arranged at one end of the horizontal adjusting plate of the movable adjusting plate, and correspondingly, the horizontal adjusting pin hole is also arranged on the top surface of the back base plate; the leveling holes are formed in the front side face of the back base plate corresponding to the other end, opposite to the leveling pin holes, of the leveling pin hole, and the leveling screw holes are formed in the front side face of the vertical adjusting plate opposite to the leveling holes;

the movable adjusting plate is connected with the back base plate by inserting the horizontal adjusting pin shaft into the two horizontal adjusting pin holes, and the horizontal adjusting screw is inserted into the horizontal adjusting hole and the horizontal adjusting screw hole to adjust the horizontal included angle between the rear side surface of the back base plate and the vertical adjusting plate of the movable adjusting plate.

The second leveling structure consists of leveling pin holes, leveling pin shafts, leveling holes, leveling screw holes and leveling screws which are respectively arranged on the reference plate and the movable adjusting plate, wherein,

the reference plate is in an inverted L shape and is divided into a transverse straight plate and a vertical plate, the transverse straight plate is fixed on the rack, the leveling pin hole is formed in one end of the transverse straight plate, and the leveling hole is formed in the vertical plate corresponding to the other end, opposite to the leveling pin hole, of the transverse straight plate;

the movable adjusting plate consists of a transverse adjusting plate and a vertical adjusting plate, the vertical adjusting plate is arranged in an included angle formed by the transverse straight plate and the vertical plate, the transverse adjusting plate is arranged below the transverse straight plate and extends towards the direction of the printing head, a horizontal adjusting pin hole is also formed in the position, opposite to the horizontal adjusting pin hole, of the top surface of the transverse adjusting plate or the vertical plate, and the horizontal adjusting screw hole is formed in the position, opposite to the horizontal adjusting hole, of the rear side surface of the vertical adjusting plate;

the horizontal adjusting pin shaft is inserted into the two horizontal adjusting pin holes to connect the reference plate with the movable adjusting plate, and the horizontal adjusting screw is sequentially inserted into the horizontal adjusting hole and the horizontal adjusting screw hole to adjust the horizontal included angle between the vertical plate of the reference plate and the vertical adjusting plate of the movable adjusting plate.

The second vertical adjusting structure consists of a vertical adjusting pin hole, a vertical adjusting pin shaft, a vertical adjusting hole, a vertical adjusting screw hole and a vertical adjusting screw which are respectively arranged on the movable adjusting plate and the back base plate, wherein,

the bottom surface of the back substrate is fixedly connected with a printing head and is arranged below a transverse adjusting plate of the movable adjusting plate;

the vertical adjusting pin hole is arranged at one end of the front side surface of the back substrate, and correspondingly, the vertical adjusting pin hole is also arranged on the front side surface of the vertical adjusting plate of the movable adjusting plate; the vertical adjusting holes are formed in the transverse adjusting plate corresponding to the other end, opposite to the vertical adjusting pin holes, and the vertical adjusting screw holes are formed in the top surface of the back substrate opposite to the vertical adjusting holes;

the back substrate is connected with the movable adjusting plate by inserting the vertical adjusting pin shaft into the two vertical adjusting pin holes, and the vertical included angle between the top surface of the back substrate and the horizontal adjusting plate of the movable adjusting plate is adjusted by inserting the vertical adjusting screw into the vertical adjusting hole and the vertical adjusting screw hole.

The transverse distance from the vertical adjusting pin hole to the vertical adjusting screw hole is smaller than the length of the heating wire of the printing head, and the difference value is 5% -60% of the length of the heating wire.

The transverse distance from the leveling pin hole to the leveling screw hole is smaller than the length of the heating wire of the printing head, and the difference is 5% -60% of the length of the heating wire.

In the first vertical adjustment structure, a vertical plate of the reference plate is provided with a vertical adjustment locking bolt which can lock and fix the reference plate and the movable adjustment plate, and in the first horizontal adjustment structure, a horizontal adjustment locking bolt which can lock the movable adjustment plate and the back base plate is arranged on a horizontal adjustment plate of the movable adjustment plate; in the second vertical adjusting structure, a vertical adjusting locking bolt capable of locking the space between the back substrate and the movable adjusting plate is arranged on the front side surface of the back substrate, and in the second horizontal adjusting structure, a horizontal adjusting locking bolt capable of locking and fixing the space between the reference plate and the movable adjusting plate is arranged on the horizontal straight plate of the reference plate.

Compression springs are arranged in the vertical adjusting screw hole and the horizontal adjusting screw hole.

The included angle formed between the bottom surface of the back substrate and the horizontal plane is 0-30 degrees.

The technical scheme of the invention is that a reference plate and a movable adjusting plate are additionally arranged between a printing head and a frame, and a vertical adjusting structure and a horizontal adjusting structure which can adjust the displacement angle of the printing head in the vertical direction and the horizontal direction are arranged between the reference plate, the movable adjusting plate and a back substrate of the printing head, so that the overlapping degree of a heating line and a pressed line of a rubber roller is adjusted, the reliable adjustment of a fine angle can be realized, and the adjusting difficulty is reduced; the printing head can be reliably fixed after being locked, and the printing head cannot slide in a dislocation manner under the action of external force in the using process; the repeated positioning precision is very high, and the accurate positioning of the position of the printing head can be realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of the adjusting structure of the present invention, which is a first vertical adjusting structure and a first horizontal adjusting structure;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is a schematic right oblique view of FIG. 1;

FIG. 5 is a top oblique view of the movable adjustment plate of FIG. 3;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 1;

FIG. 9 is a sectional view taken along line D-D of FIG. 1;

FIG. 10 is a schematic exterior view of the second vertical adjustment structure and the second horizontal adjustment structure according to the present invention;

FIG. 11 is an exploded view of FIG. 10;

FIG. 12 is a right side view of FIG. 11;

FIG. 13 is a right side elevational view of FIG. 10;

FIG. 14 is a schematic view of the movable adjustment plate of FIG. 10;

FIG. 15 is a left side view of FIG. 14;

FIG. 16 is a diagram showing the positional relationship between the adjusting structure of the present invention and the rubber roller.

The reference numbers are as follows:

the device comprises a reference plate 1, a movable adjusting plate 2, a back substrate 3, a vertical adjusting pin hole 4, a vertical adjusting pin shaft 5, a vertical adjusting hole 6, a vertical adjusting screw hole 7, a vertical adjusting screw 8, an outer hole 9, a compression spring 10, a vertical adjusting locking hole 11, a vertical adjusting locking screw hole 12, a vertical adjusting locking screw 13, a horizontal adjusting pin hole 14, a horizontal adjusting screw hole 15, a horizontal adjusting hole 16, a horizontal adjusting pin shaft 17, a horizontal adjusting screw 18, a horizontal adjusting locking hole 19, a horizontal adjusting locking screw hole 20, a horizontal adjusting locking screw 21, a printing head 22 and an elastic gasket 23.

Detailed Description

As shown in fig. 1 to 16, the adjusting structure capable of adjusting the relative position of the heater wire and the rubber roller pressed wire of the present invention is mainly used to adjust the spatial position of the print head 22 of the printer, so that the heater wire of the print head 22 is adjusted to be in a vertically overlapped state (see fig. 16) with the rubber roller pressed wire (the definition of the rubber roller pressed wire is described in the section of "background technology"), thereby effectively improving the printing quality.

The adjusting structure mainly comprises a reference plate 1, a movable adjusting plate 2 and a back base plate 3, wherein the reference plate 1 is fixed on a frame of the printer, the movable adjusting plate 2 is arranged between the reference plate 1 and the back base plate 3, and a printing head 22 is fixedly connected to the bottom surface of the back base plate 3.

1. Reference plate 1

As shown in fig. 1 to 4, the reference plate 1 is a long strip, and has an inverted "L" shape in cross section, and is fixedly connected to a frame of the printer. The reference plate 1 is divided into a horizontal straight plate and a vertical plate, the horizontal straight plate is divided into a top surface and a bottom surface, and the vertical plate is divided into a front side surface and a rear side surface. The rear end of the horizontal plate is connected to the top end of the front side of the vertical plate, and the front end of the horizontal plate extends toward the print head 22 (taking the diagram in fig. 1 as an example, the print head 22 is front on one side, and rear is back opposite to the print head 22, and the same is true below).

The present invention preferably mounts the horizontal plate fixedly to the frame of the printer (although the vertical plate may be mounted to the frame by an auxiliary bracket structure).

2. Movable adjusting plate 2

As shown in fig. 1 to 5, the adjustable plate 2 is a long strip, has an inverted L-shaped cross section, is a movable member, and is composed of a horizontal adjustment plate and a vertical adjustment plate, wherein the horizontal adjustment plate is divided into a top surface and a bottom surface, and the vertical adjustment plate is divided into a front side surface, a rear side surface and a top surface. The rear end of the horizontal adjusting plate is connected with the top end of the front side face of the vertical adjusting plate, the vertical adjusting plate is arranged in an included angle formed by the horizontal plate and the vertical plate, and the horizontal adjusting plate is arranged below the horizontal plate and extends towards the direction of the printing head 22.

3. Back substrate 3

As shown in fig. 1 to 4, the shape of the back substrate 3 is preferably "convex", which can reduce material consumption and material cost. The back substrate 3 has a top surface (the top end surface of the "projection" is referred to as the top surface of the back substrate 3), a bottom surface (the bottom end surface of the "projection" is referred to as the bottom surface of the back substrate 3), a front side surface, a rear side surface, and ear plates on both sides (the steps on both sides of the "projection" are referred to as the ear plates). The print head 22 of the printer is fixed on the bottom surface of the back base plate 3 by screws passing through screw holes provided on the ear plates, and the top surface of the back base plate 3 is placed under the cross plate of the movable adjusting plate 2.

4. Purpose of adjustment

The angle variation values of the print head 22 in the vertical and horizontal planes or the angle variation values of the print head 22 in the horizontal and vertical planes are adjusted by adjusting the spatial position variation of the movable adjustment plate 2 with respect to the reference plate 1 and the spatial position variation of the back substrate 3 with respect to the movable adjustment plate 2, respectively.

An angle formed by projecting the intersection (which may be a cross in different planes or a cross in the same plane) formed between the extension line of the heating line of the print head 22 and the extension line of the pressure line of the rubber roller, onto a vertical plane is hereinafter referred to as a vertical plane angle, and a structure for adjusting the size of the vertical plane angle is referred to as a vertical adjustment structure.

The vertical adjusting structure comprises a vertical adjusting pin hole 4, a vertical adjusting pin shaft 5, a vertical adjusting hole 6, a vertical adjusting screw hole 7, a vertical adjusting screw 8 and a vertical adjusting locking bolt 12.

An angle formed by projecting the intersection (which may be an intersection in different planes or an intersection in the same plane) formed between the extension line of the heating line of the print head 22 and the extension line of the pressure line of the rubber roller, onto a horizontal plane is hereinafter referred to as a plane angle, and a structure for adjusting the size of the plane angle is hereinafter referred to as a leveling structure.

The leveling structure comprises leveling pin holes 14, leveling pin shafts 17, leveling holes 16, leveling screw holes 15, leveling screws 18 and leveling locking bolts.

5. Two vertical adjustment structures and two horizontal adjustment structures

When the vertical adjustment structure is arranged between the movable adjustment plate 2 and the reference plate 1, correspondingly, the horizontal adjustment structure is arranged between the movable adjustment plate 2 and the back base plate 3, at this time, the vertical adjustment structure is called a first vertical adjustment structure, and the horizontal adjustment structure is called a first horizontal adjustment structure.

On the contrary, when the horizontal adjusting structure is disposed between the movable adjusting plate 2 and the reference plate 1, the vertical adjusting structure is correspondingly disposed between the movable adjusting plate 2 and the back base plate 3, and at this time, the horizontal adjusting structure is referred to as a second horizontal adjusting structure, and the vertical adjusting structure is referred to as a second vertical adjusting structure.

Compared with the prior art, the heating wire and the rubber roller pressed wire can be overlapped by adopting the adjusting structure, so that the difficulty of adjusting the heating wire of the printing head 22 to be parallel to the rubber roller pressed wire is reduced, the reliable adjustment of a fine angle is realized, the adjusting difficulty is reduced, and the position stability of the printing head 22 after adjustment is improved.

First, example 1

1. First vertical adjustment structure

As shown in fig. 1 to 9, the vertical adjustment structure is a structure for adjusting the angle of the movable adjustment plate 2 relative to the reference plate 1 in the vertical direction, and in the vertical adjustment structure:

two vertical adjustment pin holes 4 are respectively one pin hole arranged at the inner side of the rear side surface of the vertical plate and the other pin hole arranged at the inner side of the rear side surface of the vertical plate, and the two vertical adjustment pin holes 4 are arranged in a front-back opposite mode (taking the direction of the drawing in fig. 1 as an example, the upper left direction is the inner direction, the lower right direction is the outer direction, and the lower direction is the same);

the vertical adjusting hole 6 is a through hole arranged on the outer side of the top surface of the horizontal straight plate, namely the vertical adjusting pin hole 4 and the vertical adjusting hole 6 are arranged oppositely;

the vertical adjusting screw hole 7 is a threaded hole arranged on the outer side of the top surface of the vertical adjusting plate, and the vertical adjusting screw hole 7 and the vertical adjusting hole 6 are arranged in a vertically opposite mode;

the vertical adjustment locking bolt is arranged on the rear side surface of the vertical plate, and the vertical adjustment locking bolt is preferably arranged on the outer side of the rear side surface of the vertical plate.

The base plate 1 is connected with the movable adjusting plate 2 by inserting the vertical adjusting pin shaft 5 into the two vertical adjusting pin holes 4 in sequence, at the moment, the movable adjusting plate 2 can rotate around the vertical adjusting pin shaft 5, and the outer end of the horizontal adjusting plate on the movable adjusting plate is far away from or close to the outer end of the horizontal straight plate of the base plate 1.

The vertical adjusting screw 8 is inserted into the vertical adjusting hole 6 and the vertical adjusting screw hole 7 in sequence to adjust the distance between the outer end of the horizontal adjusting plate and the outer end of the horizontal straight plate, namely the size of a vertical included angle formed between the bottom surface of the horizontal straight plate of the adjusting reference plate 1 and the top surface of the vertical adjusting plate of the movable adjusting plate 2.

The vertical adjusting plate is fixedly connected with the vertical adjusting plate by penetrating through the vertical adjusting locking bolt, and the reference plate 1 and the movable adjusting plate 2 which are adjusted in position are locked and fixed.

2. First leveling structure

As shown in fig. 1 to 4, the leveling structure adjusts the variation angle of the back substrate 3 and the print head relative to the movable adjustment plate 2 in the horizontal direction, and in the leveling structure:

the two horizontal adjusting pin holes 14 are respectively one pin hole arranged on the inner side of the top surface of the horizontal adjusting plate of the movable adjusting plate 2 and the other pin hole arranged on the inner side of the top surface of the back base plate 3, and the two horizontal adjusting pin holes 14 are arranged in a vertically opposite mode;

the leveling hole 16 is a through hole arranged on the outer side of the front side surface of the back substrate 3, namely, the leveling pin hole 14 and the leveling hole 16 are arranged oppositely inside and outside;

the horizontal adjusting screw hole 15 is a threaded hole with internal threads, which is arranged on the outer side of the front side surface of the vertical adjusting plate, and the horizontal adjusting screw hole 15 and the horizontal adjusting hole 16 are arranged in a front-back opposite mode;

the horizontal adjusting locking bolt is arranged on the top surface of the horizontal adjusting plate, and the horizontal adjusting locking bolt is preferably arranged on the outer side of the top surface of the horizontal adjusting plate.

The back base plate 3 and the movable adjusting plate 2 are connected together by inserting the horizontal adjusting pin shaft 17 into the two horizontal adjusting pin holes 14 in sequence, at the moment, the back base plate 3 can rotate around the horizontal adjusting pin shaft 17, and the outer end of the rear side surface of the back base plate is far away from or close to the outer end of the vertical adjusting plate of the movable adjusting plate 2.

The distance between the outer end of the back substrate 3 and the outer end of the vertical adjusting plate is adjusted by sequentially inserting the horizontal adjusting screw 18 into the horizontal adjusting hole 16 and the horizontal adjusting screw hole 15, namely, the size of a horizontal included angle formed between the rear side surface of the back substrate 3 and the front side surface of the vertical adjusting plate of the movable adjusting plate 2 is adjusted.

The horizontal adjusting locking bolt penetrates through the horizontal adjusting plate to be fixedly connected with the back base plate 3, and the back base plate 3 and the movable adjusting plate 2 which are adjusted in position are locked and fixed.

Second, example 2

1. Second adjusting structure

As shown in fig. 10 to 15, the leveling structure is to adjust the variation angle of the movable adjustment plate 2 in the horizontal direction with respect to the reference plate 1, and in the leveling structure:

the two horizontal adjusting pin holes 14 are respectively a pin hole arranged on the inner side of the top surface of the horizontal straight plate and another pin hole arranged on the inner side of the top surface of the vertical adjusting plate (when the horizontal straight plate of the reference plate 1 is long, the horizontal adjusting pin hole 14 can also be arranged on the top surface of the horizontal adjusting plate), and the two horizontal adjusting pin holes 14 are arranged in a vertically opposite manner;

the leveling hole 16 is a through hole arranged on the outer side of the rear side surface of the vertical plate, namely, the leveling pin hole 14 and the leveling hole 16 are arranged oppositely inside and outside;

the leveling screw hole 15 is a threaded hole arranged on the outer side of the rear side surface of the vertical adjusting plate, and the leveling screw hole 15 and the leveling hole 16 are arranged in a front-back opposite mode;

the horizontal adjusting locking bolt is arranged on the top surface of the horizontal straight plate, and the horizontal adjusting locking bolt is preferably arranged on the outer side of the top surface of the horizontal straight plate.

The horizontal adjusting pin shaft 17 is inserted into the two horizontal adjusting pin holes 14 in sequence to connect the reference plate 1 and the movable adjusting plate 2 together, at the moment, the movable adjusting plate 2 can rotate around the horizontal adjusting pin shaft 17, and the outer end of the vertical adjusting plate on the movable adjusting plate is far away from or close to the outer end of the vertical plate of the reference plate 1.

The distance between the outer end of the vertical adjusting plate and the outer end of the vertical plate is adjusted by sequentially inserting a horizontal adjusting screw 18 into a horizontal adjusting hole 16 and a horizontal adjusting screw hole 15, namely, the size of a horizontal included angle formed between the front side surface of the vertical plate of the reference plate 1 and the rear side surface of the vertical adjusting plate of the movable adjusting plate 2 is adjusted.

And a horizontal adjusting locking bolt penetrates through the horizontal straight plate to be fixedly connected with the horizontal adjusting plate, and the reference plate 1 and the movable adjusting plate 2 which are adjusted in position are locked and fixed.

2. Second vertical adjustment structure

As shown in fig. 10 to 15, the vertical adjustment structure is used to adjust the angle of the back substrate 3 and the print head relative to the movable adjustment plate 2 in the vertical direction, and in the vertical adjustment structure:

the two vertical adjusting pin holes 4 are respectively a pin hole arranged on the inner side of the front side surface of the back base plate 3 and another pin hole arranged on the inner side of the front side surface of the vertical adjusting plate of the movable adjusting plate 2, and the two vertical adjusting pin holes 4 are arranged in a front-back opposite mode;

the vertical adjusting hole 6 is a through hole arranged on the outer side of the top surface of the horizontal adjusting plate, namely the vertical adjusting pin hole 4 and the vertical adjusting hole 6 are arranged oppositely;

the vertical adjustment screw hole 7 is a threaded hole with internal threads, which is arranged on the outer side of the top surface of the back substrate 3, and the vertical adjustment screw hole 7 and the vertical adjustment hole 6 are arranged oppositely;

the vertical adjustment lock bolt is provided on the front side surface of the back base plate 3, and the present invention is preferably provided outside the front side surface of the back base plate 3.

The back base plate 3 is connected with the movable adjusting plate 2 by inserting the vertical adjusting pin shaft 5 into the two vertical adjusting pin holes 4 in sequence, at the moment, the back base plate 3 can rotate around the vertical adjusting pin shaft 5, and the outer end of the top surface of the back base plate is far away from or close to the outer end of the transverse adjusting plate of the movable adjusting plate 2.

The distance between the outer end of the top surface of the back substrate 3 and the outer end of the transverse adjusting plate is adjusted by sequentially inserting the vertical adjusting screw 8 into the vertical adjusting hole 6 and the vertical adjusting screw hole 7, namely, the size of a vertical included angle formed between the top surface of the back substrate 3 and the bottom surface of the transverse adjusting plate of the movable adjusting plate 2 is adjusted.

The back base plate 3 is fixedly connected with the vertical adjusting plate through a vertical adjusting locking bolt, and the back base plate 3 with the adjusted position is locked and fixed with the movable adjusting plate 2.

A further improvement of the invention: as shown in fig. 8 to 9, in order to improve the accuracy, stability and reliability of the adjustment structure, the following structures are adopted for the vertical adjustment screw 8 (or the horizontal adjustment screw 18) and the vertical adjustment screw hole 7 (or the horizontal adjustment screw hole 15) (the first vertical adjustment structure is taken as an example in the following description):

the vertical adjusting screw 8 is divided into a screw cap and a screw rod, the screw rod is divided into two sections from the screw cap side, namely a first optical axis section and an external thread section, correspondingly, the vertical adjusting screw hole 7 is also divided into two sections from outside to inside, namely an external hole 9 and an internal thread section, and the length of the internal thread section is greater than that of the external thread section of the screw rod. When in adjustment, the external thread section of the vertical adjustment screw 8 is meshed with the internal thread section of the vertical adjustment screw hole 7. As shown in fig. 9, the screw rod of the vertical adjustment screw 8 can also be divided into three sections from the nut side, namely a first optical axis, an external thread section and a second optical axis, and correspondingly, the vertical adjustment screw hole 7 is also divided into three sections from the outside to the inside, namely an external hole 9, an internal thread section and an internal hole, during adjustment, the second optical axis on the vertical adjustment screw 8 is arranged in the internal hole, the external thread section of the vertical adjustment screw 8 is engaged with the internal thread section of the vertical adjustment screw hole 7, and the internal hole is a space for accommodating the second optical axis extending into the internal hole. The size of the vertical included angle between the bottom surface of the transverse straight plate of the reference plate 1 and the top surface of the transverse adjusting plate of the movable adjusting plate 2 can be adjusted by rotating (anticlockwise or clockwise rotating) the screw cap.

A compression spring 10 sleeved on the first optical axis is arranged in the outer hole 9, a clamping table or a clamping ring limiting the compression spring 10 in the outer hole 9 is arranged at the junction of the outer hole 9 and the internal thread section, and the outer end of the compression spring 10 is pressed on the bottom surface of the transverse straight plate of the reference plate 1. The compression spring 10 has two advantages:

1) after the vertical adjusting screw 8 is adjusted in place (namely after the vertical included angle is adjusted), the horizontal straight plate of the reference plate 1 and the horizontal adjusting plate of the movable adjusting plate 2 are stably kept at a limited distance;

2) because of the machining precision, a certain gap exists between the teeth of the external thread section on the plumbing screw 8 and the thread groove of the internal thread section in the plumbing screw hole 7, in order to avoid the adjustment error generated by the gap, the compression spring 10 is arranged to ensure that when the plumbing screw 8 is inserted into the plumbing screw hole 7, the connection mode between the teeth and the thread groove is always in a single-side contact mode (namely, the outer sides of the teeth and the outer sides of the thread groove are always connected no matter the plumbing screw 8 is screwed in or out), thus, the gap error generated between the teeth and the thread groove when the plumbing screw 8 is rotated can be effectively eliminated.

The invention further improves the following steps: in order to ensure that the adjusted vertical included angle or horizontal included angle is stably kept within a limited value, the vertical adjustment locking bolt of the invention adopts the following mounting structure (the first vertical adjustment structure is taken as an example for explanation below):

as shown in fig. 6, a vertical adjustment locking hole 11 is formed in the rear side surface of the vertical plate of the reference plate 1, the vertical adjustment locking hole 11 is a vertically-arranged waist-shaped through hole (i.e., a rectangular hole with two short sides being semicircular), correspondingly, a vertical adjustment locking screw hole 12 with an internal thread is formed in the rear side surface of the vertical plate of the movable adjustment plate 2, the vertical adjustment locking bolt is a vertical adjustment locking screw 13 with an external thread, and the internal thread is in meshing connection with the external thread. The vertical adjustment locking screw 13 passes through the vertical adjustment locking hole 11 and is screwed in the vertical adjustment locking screw hole 12.

An elastic washer 23 is fitted around the vertical adjustment locking screw 13, and serves to prevent the vertical adjustment locking screw 13 from loosening during a long period of time of the printer.

As shown in fig. 7, the installation structure of the horizontal adjustment locking bolt can refer to the installation manner of the vertical adjustment locking bolt (the difference is the positions of the horizontal adjustment locking hole 19, the horizontal adjustment locking screw hole 20 and the horizontal adjustment locking screw 21).

The invention also improves the following steps: in order to improve the adjusting speed and ensure the adjusting precision, the transverse distance from the vertical adjusting pin hole 4 to the vertical adjusting screw hole 7 is less than the length of the heating wire of the printing head 22, and the difference is 5-60% of the length of the heating wire. The lateral distance from the leveling pin hole 14 to the leveling screw hole 15 is less than the length of the heater wire of the print head 22 by 5-60% of the length of the heater wire.

The invention is further improved as follows: the included angle between the bottom surface of the back substrate 3 and the horizontal plane is set to be 0-30 degrees. The included angle is set so that the print head 22 forms a certain included angle with the print medium, thereby avoiding the contact of the print medium with other parts or structures required for the heating wire for packaging the print head and preventing the damage of the print head caused by the friction between the print medium and other parts or structures.

Third, introduction of regulating procedure

Ideally, the position relationship between the print head and the rubber roller of the printer is shown in fig. 16, but because the mechanical processing precision of each component in the printer is different in the manufacturing process, the heating line on the print head and the rubber roller pressed line are often parallel to each other after the printer is assembled, so that the overlapping effect of the two lines (the heating line and the rubber roller pressed line) is poor during printing, and the two lines often generate a tiny vertical included angle in a vertical plane or a tiny horizontal included angle in a horizontal plane due to dislocation, so that the printing effect of a lighter is poor, and the content missing phenomenon is caused by a heavier person.

By adjusting the adjusting structure, the two lines can be effectively ensured to be parallel to each other and overlapped up and down during printing.

The vertical adjustment structure is taken as an example to illustrate the adjustment precision of the invention (the horizontal adjustment structure is the same as the vertical adjustment structure):

when the vertical adjusting screw 8 rotates 360 degrees anticlockwise or clockwise, the length distance for screwing the vertical adjusting screw 8 out of or into the vertical adjusting screw hole 7 is set to be a screw pitch, and the screw pitch is designed to be 0.25mm-2.5 mm. In this case, when the vertical adjustment screw 8 rotates by 1 degree, the thread pitch of the vertical adjustment screw 8 which is screwed in or out is 0.0006mm-0.006mm, and the vertical or horizontal distance between the heating wire and the same end of the rubber roller compression wire (for the heating wire, the end corresponding to the end where the vertical adjustment screw 8 is located in the vertical adjustment structure) can be adjusted with high precision through the arrangement.