CN220562400U - Printing apparatus - Google Patents

Abstract

The utility model discloses a printing device which comprises a base, an upper shell, a paper clamping assembly, a sensing piece and a fixing assembly. The base is used for accommodating a label paper roll. The upper shell is movably pivoted to the base. The paper clamping assembly is arranged on the base. The paper clamping assembly comprises a first paper supporting piece, a second paper supporting piece and a gear piece. The second paper supporting piece and the first paper supporting piece are respectively supported against two sides of the label paper roll. The gear piece is connected between the first paper supporting piece and the second paper supporting piece. When the first paper supporting piece moves along a first direction, the gear piece is driven to rotate, so that the second paper supporting piece moves along a second direction in a linkage manner, and the first direction is opposite to the second direction. The fixing component is movably connected to the second paper supporting piece. The sensing piece is connected to the second paper supporting piece. The fixing component is used for being operated to abut against or separate from the second paper abutting piece, so that the paper clamping component can be switched between a fixed mode or an active mode.

Description

Printing apparatus

Technical Field

The present utility model relates to a printing apparatus, and more particularly, to a printing apparatus having a paper clamping assembly.

Background

A printing apparatus, such as a Label printer (Label printer) or a Thermal printer (Thermal printer), when a roll of Label paper is mounted, pulls a length of Label paper from the roll and passes the edge of the Label paper through the sensing range of the gap sensor. The gap sensor can detect the volume label on the surface of the volume label paper and the interval between the volume labels so as to confirm the initial printing position of the next volume label. However, in the conventional printing apparatus, the gap sensor is usually fixed in the printing apparatus, that is, the gap sensor cannot be adjusted according to the width of the paper. Therefore, the printing device is limited to the paper size that can be installed. Once the width of the sheet is too small, it is liable to be unable to be mounted in the printing apparatus because it cannot be detected by the gap sensor.

Therefore, how to overcome the above-mentioned drawbacks by improving the structural design, so that the printing device can be applied to various specifications of paper sheets has become one of the important problems to be solved in this field.

Disclosure of Invention

The utility model mainly provides a printing device which solves the technical problem that the prior printing device can not adjust the position of a gap sensor so as to limit the specification of paper which can be installed.

In order to solve the above technical problems, one of the technical solutions adopted by the present utility model is to provide a printing device, which includes a base, an upper housing, a paper clamping assembly, a sensing member, and a fixing assembly. The base is used for accommodating a label paper roll. The upper shell is movably pivoted to the base. The paper clamping assembly is arranged on the base. The paper clamping assembly comprises a first paper supporting piece, a second paper supporting piece and a gear piece. The second paper supporting piece and the first paper supporting piece are respectively supported against two sides of the label paper roll. The gear piece is connected between the first paper supporting piece and the second paper supporting piece. When the first paper supporting piece moves along a first direction, the gear piece is driven to rotate, so that the second paper supporting piece moves along a second direction in a linkage manner, and the first direction is opposite to the second direction. The fixing component is movably connected to the second paper supporting piece. The sensing piece is connected to the second paper supporting piece. The fixing component is used for being operated to abut against or separate from the second paper abutting piece, so that the paper clamping component can be switched between a fixed mode or an active mode.

Preferably, the first paper supporting piece comprises a first supporting frame and a first rack part connected with the first supporting frame, the second paper supporting piece comprises a second supporting frame and a second rack part connected with the second supporting frame, and the first rack part and the second rack part are meshed with the gear piece.

Preferably, the first paper supporting piece further comprises a first supporting frame connected to the first rack part, the second paper supporting piece further comprises a second supporting frame connected to the second rack part, the base is provided with a guide rail groove, and the first supporting frame and the second supporting frame are arranged in the guide rail groove and respectively support against two sides of the label paper roll.

Preferably, the base is provided with a third rack part adjacent to the guide rail groove, the fixing assembly comprises a pressing part and a positioning block connected to the pressing part, the positioning block is provided with a saw-tooth structure, the pressing part is arranged on the upper surface of the base, the positioning block is arranged on the lower surface of the base, and the positioning block is meshed with the third rack part through the saw-tooth structure.

Preferably, when the pressing part is not pressed, the sawtooth structure of the positioning block is meshed with the third rack part, so that the paper clamping assembly is in a fixed mode; when the pressing part is pressed, the positioning block moves downwards to be separated from the third rack part, so that the paper clamping assembly is in a movable mode.

Preferably, the sensing piece is connected to the second abutting frame and adjacent to the pressing part, and the sensing piece is provided with a sensing range; when the second abutment shelf abuts against the edge of the label paper roll, the label paper roll will be located within the sensing range.

Preferably, the sensing member is for sensing a gap between a plurality of labels on the label paper roll.

Preferably, the printing device further comprises a fixing rod member disposed on the base, the fixing rod member is adjacent to the paper clamping assembly, and the fixing rod member is used for fixing the label paper roll.

In summary, the present utility model controls the paper clamping assembly to switch between a fixed mode and an active mode by the structural design of the fixing assembly for being operated to abut against or separate from the second paper supporting member. In addition, the printing device can adjust the position of the sensing piece through the design that the sensing piece is connected with the second paper supporting piece of the paper clamping assembly, thereby being applicable to the label paper rolls with various specifications.

For a further understanding of the nature and the technical aspects of the present utility model, reference should be made to the following detailed description of the utility model and the accompanying drawings, which are provided for purposes of reference only and are not intended to limit the utility model.

Drawings

Fig. 1 is a schematic view of a printing apparatus of the present utility model.

Fig. 2 is an expanded schematic view of the printing apparatus of the present utility model.

Fig. 3 is a schematic view of a label paper roll mounted on a base of the printing apparatus of the present utility model.

Fig. 4 is a schematic side view of a label paper roll mounted on a base of the printing apparatus of the present utility model.

Fig. 5 is a schematic view of a base of the printing apparatus of the present utility model.

Fig. 6 is a schematic view of a paper clamping assembly of the printing apparatus of the present utility model.

Fig. 7 is a schematic view of the relative positions of the sensing element and the label paper roll of the printing apparatus of the present utility model.

Fig. 8 is a schematic view of another relative position of the sensing member and the label paper roll of the printing apparatus of the present utility model.

Detailed Description

The following description is given of specific embodiments of the disclosed "printing apparatus" according to the present utility model, and those skilled in the art will appreciate the advantages and effects of the present utility model from the disclosure of the present utility model. The utility model is capable of other and different embodiments and its several details are capable of modifications and various other uses and applications, all of which are obvious from the description, without departing from the spirit of the utility model. The drawings of the present utility model are merely schematic illustrations, and are not intended to be drawn to actual dimensions. The following embodiments will further illustrate the related art content of the present utility model in detail, but the disclosure is not intended to limit the scope of the present utility model.

It will be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used primarily to distinguish one element from another element. In addition, the term "or" as used herein shall include any one or combination of more of the associated listed items as the case may be.

Referring to fig. 1 and 2, fig. 1 is a schematic diagram of a printing apparatus according to the present utility model, and fig. 2 is an expanded schematic diagram of the printing apparatus according to the present utility model. The utility model provides a printing device M, which comprises a base 1, an upper shell 2, a paper clamping component 3 and a fixing component 4 (the paper clamping component 3 and the fixing component 4 can refer to fig. 6 firstly). The printing device M of the present utility model may be, for example, a desktop or portable printing device, such as a barcode label printer or a thermal printer, but not limited thereto. In the following description, only the differences from the conventional desktop label printing apparatus will be described, and the printing apparatus M of the present utility model may include the remaining components included in the conventional desktop label printing apparatus.

The base 1 is used for accommodating a label paper roll P, and the upper housing 2 is movably pivoted to the base 1. The upper housing 2 further comprises a body 21 and a housing cover 22. The housing cover 22 is detachably provided on the outside of the body 21, and the body 21 is for being operated to rotate in a direction away from or toward the base 1. The paper clamping assembly 3 and the fixing assembly 4 are arranged on the base 1.

Referring to fig. 3 and 4, fig. 3 is a schematic diagram of a label paper roll mounted on a base of the printing apparatus according to the present utility model, and fig. 4 is a schematic side view of the label paper roll mounted on the base of the printing apparatus according to the present utility model. The label paper roll P is provided on the upper surface 1A of the base 1, and the paper sandwiching assembly 3 is provided on the lower surface 1B of the base 1. Next, referring to fig. 5 and 6, fig. 5 is a schematic view of a base of the printing apparatus according to the present utility model, and fig. 6 is a schematic view of a paper clamping assembly of the printing apparatus according to the present utility model. The overall view of the paper clamping assembly 3 can be seen from fig. 4 and 6, wherein fig. 4 shows the paper clamping assembly 3 from a side view of the base, and fig. 6 shows the paper clamping assembly 3 from a bottom view of the base. The paper sandwiching assembly 3 includes a first paper abutment 31, a second paper abutment 32, and a gear member 33.

The second paper supporting member 32 and the first paper supporting member 31 respectively support against both sides of the label paper roll P. Specifically, the first paper supporting member 31 includes a first rack portion 311 and a first supporting frame 312, and the first supporting frame 312 is connected to the first rack portion 311. The second paper supporting member 32 includes a second rack portion 321 and a second supporting frame 322, and the second supporting frame 322 is connected to the second rack portion 321. The first rack portion 311 and the second rack portion 321 are positioned on the lower surface 1B of the base 1, and are engaged with the gear member 33, and the gear member 33 is positioned between the first rack portion 311 and the second rack portion 321. The base 1 has a guide rail groove 11. The first abutting frame 312 and the second abutting frame 322 are located on the upper surface 1A of the base 1, slidably disposed in the guide rail groove 11, and respectively abut against both sides of the label paper roll P.

As shown in fig. 3, 5 and 6, when the label paper roll P is set on the base 1, the label paper roll P is covered on the guide rail groove 11 and is located between the first abutting frame 312 and the second abutting frame 322. Since the gear member 33 is located between the first rack portion 311 and the second rack portion 321, the movement directions of the first rack portion 311 and the second rack portion 321 are opposite.

For example, when the first rack portion 311 of the first paper supporting member 31 moves along a first direction (positive X-axis direction), the gear member 33 is driven to rotate, and the second rack portion 321 of the second paper supporting member 32 is driven to move along a second direction (negative X-axis direction). At this time, the first abutting frame 312 of the first abutting piece 31 and the second abutting frame 322 of the second abutting piece 32 move along the guide rail groove 11 to approach each other, and abut against the label paper roll P.

Conversely, when the first rack portion 311 moves in the second direction (negative X-axis direction), the second rack portion 321 moves in the first direction (positive X-axis direction), and the first abutting frame 312 and the second abutting frame 322 move away from each other along the guide rail groove 11, thereby releasing the label paper roll P. It should be noted that, the first abutting frame 312 and the second abutting frame 322 are mainly used for guiding the label paper roll P to make it output stably, i.e. to avoid the label paper roll P from shaking left and right during the outputting process.

The whole view of the fixing element 4 can be seen from fig. 5 and 6, fig. 5 shows the fixing element 4 from a top view of the base 1, and fig. 6 shows the fixing element 4 from a bottom view of the base. The fixing assembly 4 is connected to the second paper abutment 32. The fixing assembly 4 is configured to be operated to abut against or disengage from the second paper abutment 32, so that the paper clamping assembly 3 can be switched between a fixed mode or an active mode. That is, the fixing assembly 4 is used to control whether the paper clamping assembly 3 is actuated or not.

The fixing assembly 4 includes a pressing portion 41, a positioning block 42 connected to the pressing portion 41, and a spring member (not shown) connected between the pressing portion 41 and the positioning block 42. The pressing portion 41 is provided on the upper surface 1A of the base 1, and the positioning block 42 is provided on the lower surface 1B of the base 1. The positioning block 42 has a saw tooth structure 421. The lower surface 1B of the base 1 is provided with a third rack portion 12 adjacent to the guide rail groove 11. The positioning block 42 is movably engaged with the third rack portion 12 by the saw tooth structure 421.

Further, when the pressing portion 41 is not pressed, the saw tooth structure 421 of the positioning block 42 is engaged with the third rack portion 12. Since the fixing assembly 4 is connected to the second paper supporting member 32, the second paper supporting member 32 is limited by the engagement between the positioning block 42 and the third rack portion 12 and cannot move. At this time, the paper clamping assembly 3 is in the fixed mode.

When the pressing portion 41 is pressed, the positioning block 42 moves downward in the negative Z-axis direction to disengage from the third rack portion 12, so that the saw tooth structure 421 of the positioning block 42 is no longer in contact with the third rack portion 12. At this time, the paper clamping assembly 3 is in the active mode. Therefore, the user can push the second paper supporting member 32 further to move the first paper supporting member 31 together by pushing the pressing portion 41 to disengage the positioning block 42 from the third rack portion 12, so that the first supporting frame 312 of the first paper supporting member 31 and the second supporting frame 322 of the second paper supporting member 32 are close to or far from each other.

As shown in fig. 3, 5 and 6, the printing device M further includes a sensing element 5 and a fixing rod 6. The sensing element 5 is connected to the second abutting frame 322 and adjacent to the pressing portion 41, and the fixing rod 6 is disposed on the base 1 and adjacent to the paper clamping assembly 3. The fixing lever 6 is used to fix the label paper roll P. The sensing member 5 is a gap sensor for detecting the distance between adjacent labels on the surface of the label paper roll P, thereby confirming whether the printing position of the label is correct.

For example, the gap sensor is a photoelectric sensor, and mainly comprises a light emitting portion for transmitting light and a light receiving portion for receiving light. When the projected light is shielded by the detection object, the amount of light received by the light receiving portion changes. Further, the amount of light received by the light receiving portion by passing the light through the tag is different from the amount of light received by the light receiving portion by passing the light through the gap between the two tags. Therefore, the sensor 5 (gap sensor) can detect whether the label is located at the correct printing position by the change in the light receiving amount.

Furthermore, the sensing member 5 is provided with a sensing range, and the label paper roll P must be located within the sensing range to be sensed by the sensing member 5. In other words, when the second abutment frame 322 abuts against the edge of the label paper roll P, the label paper roll P is located within the sensing range.

Referring to fig. 3, fig. 6, fig. 7 and fig. 8 in combination, fig. 7 and fig. 8 are schematic views of a sensing element and a label paper roll of a printing apparatus according to the present utility model in different relative positions. The sensing member 5 is for sensing gaps G between a plurality of labels P1 on the label paper roll P.

When the width W of the label paper roll P is too small to be covered in the sensing range of the sensing element 5, the user can push the second abutment frame 322 of the second abutment member 32 closer to the label paper roll P (as indicated by the dashed arrow in fig. 8) by pressing the pressing portion 41 to disengage the positioning block 42 from the third rack portion 12. Since the sensing element 5 is connected to the second abutting frame 322, the sensing element 5 will also face the label paper roll P, so that the edge of the label paper roll P is located within the sensing range of the sensing element 5. In addition, after confirming that the sensing member 5 has detected the gap between the adjacent labels P1 of the label paper roll P, the user can release the pressing portion 41, and the pressing portion 41 and the positioning block 42 are returned to the position when pressed by the elastic restoring force of the spring member, so that the positioning block 42 and the third rack portion 12 are returned to the engaged state, and the paper clamping assembly 3 and the sensing member 5 are fixed. Therefore, the present utility model can be applied to tag paper rolls P of various specifications by adjusting the position of the sensing member 5.

Advantageous effects of the embodiments

In summary, the present utility model provides a printing apparatus M, which includes a base 1, an upper housing 2, a paper clamping assembly 3, and a fixing assembly 4. Through the structural design among the first paper supporting piece 31, the second paper supporting piece 32 and the gear piece 33 of the paper clamping assembly 3, the first supporting frame 312 and the second supporting frame 322 can clamp the label paper roll P left and right, thereby guiding the label paper roll P to stably output and avoiding the label paper roll P from shaking left and right in the output process.

Furthermore, by the structural design of the pressing portion 41 and the positioning block 42 of the fixing assembly 4, the fixing assembly 4 is used to be operated to abut against or separate from the second paper supporting member 32, so as to control the paper clamping assembly 3 to switch between a fixed mode and an active mode. In addition, the printing device M of the present utility model can adjust the position of the sensing element 5 by the design that the sensing element 5 is connected to the second abutting frame 322 of the paper clamping assembly 3, so as to adapt to the label paper rolls P of various specifications.

The foregoing disclosure is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model, so that all equivalent technical changes made by applying the description of the present utility model and the accompanying drawings are included in the scope of the present utility model.

Claims (8)

1. A printing apparatus, the printing apparatus comprising:

a base for receiving a label paper roll;

an upper shell pivoted to the base;

the paper clamping assembly is arranged on the base, and the paper clamping assembly comprises: a first paper supporting piece; the second paper supporting piece and the first paper supporting piece are respectively supported against two sides of the label paper roll; the gear piece is connected between the first paper supporting piece and the second paper supporting piece; when the first paper supporting piece moves along a first direction, the gear piece is driven to rotate, so that the second paper supporting piece moves along a second direction in a linkage way, and the first direction is opposite to the second direction;

the sensing piece is connected to the second paper supporting piece;

the fixing component is connected with the second paper supporting piece and is used for being operated to be abutted against or separated from the second paper supporting piece, so that the paper clamping component can be switched between a fixed mode or a movable mode.

2. The printing device of claim 1, wherein the first paper-supporting member comprises a first supporting frame and a first rack portion connected to the first supporting frame, the second paper-supporting member comprises a second supporting frame and a second rack portion connected to the second supporting frame, and the first rack portion and the second rack portion are engaged with the gear member.

3. The printing device of claim 2, wherein the first paper supporting member further comprises a first supporting frame connected to the first rack portion, the second paper supporting member further comprises a second supporting frame connected to the second rack portion, the base has a guide rail groove, and the first supporting frame and the second supporting frame are disposed in the guide rail groove and respectively support against both sides of the label paper roll.

4. The printing device according to claim 3, wherein the base is provided with a third rack portion adjacent to the guide rail groove, the fixing assembly comprises a pressing portion and a positioning block connected to the pressing portion, the positioning block has a saw-tooth structure, the pressing portion is disposed on the upper surface of the base, the positioning block is disposed on the lower surface of the base, and the positioning block is engaged with the third rack portion through the saw-tooth structure.

5. The printing apparatus of claim 4, wherein the saw tooth structure of the positioning block engages the third rack portion when the pressing portion is not pressed, causing the paper clamping assembly to be in the fixed mode; when the pressing part is pressed, the positioning block moves downwards to be separated from the third rack part, so that the paper clamping assembly is in the movable mode.

6. The printing device according to claim 4, wherein the sensing member is connected to the second abutting frame and adjacent to the pressing portion, and the sensing member is provided with a sensing range; when the second abutment shelf abuts against the edge of the label paper roll, the label paper roll will be located within the sensing range.

7. The printing device of claim 6, wherein the sensing member is configured to sense a gap between a plurality of labels on the label paper roll.

8. The printing device of claim 1, further comprising a fixing rod disposed on the base, the fixing rod being adjacent to the paper clamping assembly, the fixing rod being configured to fix the label paper roll.