CN220562400U - Printing apparatus - Google Patents

Abstract

The utility model discloses a printing device, which includes a base, an upper shell, a paper clamping component, a sensing component and a fixing component. The base is used to accommodate a label paper roll. The upper shell is movably pivotally connected to the base. The paper clamping component is arranged on the base. The paper clamping assembly includes a first paper holding member, a second paper holding member and a gear member. The second paper resisting member and the first paper resisting member respectively abut against both sides of the label paper roll. The gear member is connected between the first paper holding member and the second paper holding member. When the first paper resisting member moves along a first direction, the gear member is driven to rotate, so that the second paper resisting member is linked to move along a second direction, and the first direction is opposite to the second direction. The fixing component is movably connected to the second paper holding member. The sensing component is connected to the second paper receiving component. The fixed component is used to be operated to abut or disengage from the second paper resisting member, so that the paper clamping component can be converted between a fixed mode or a movable mode.

Description

Printing device

Technical field

The utility model relates to a printing device, in particular to a printing device with a paper clamping assembly.

Background technique

When a printing device, such as a label printer or a thermal printer, loads a paper roll composed of label paper, it will pull out a section of the label paper from the paper roll and pass the edge of the label paper through The sensing range of the gap sensor. The gap sensor can detect the label on the surface of the label paper and the gap between the labels to confirm the starting printing position of the next label. However, in existing printing devices, the internal gap sensor is usually fixed in the printing device, that is, the gap sensor cannot adjust its position according to the width of the paper. Therefore, the printing device will be limited by the paper specifications that can be installed. Once the width of the paper is too small, it will easily not be detected by the gap sensor and cannot be installed in the printing device.

Therefore, how to improve the structural design so that the printing device can be adapted to paper of various specifications to overcome the above-mentioned defects has become one of the important issues to be solved in this field.

Utility model content

The utility model mainly provides a printing device to solve the technical problem in the existing printing device that the paper specifications that can be installed are limited due to the inability of the gap sensor to adjust the position.

In order to solve the above technical problems, one of the technical solutions adopted by the present invention is to provide a printing device, which includes a base, an upper housing, a paper clamping component, a sensing component and a fixing component. The base is used to accommodate a label paper roll. The upper shell is movably pivotally connected to the base. The paper clamping component is arranged on the base. The paper clamping assembly includes a first paper holding member, a second paper holding member and a gear member. The second paper resisting member and the first paper resisting member respectively abut against both sides of the label paper roll. The gear member is connected between the first paper holding member and the second paper holding member. When the first paper resisting member moves along a first direction, the gear member is driven to rotate, so that the second paper resisting member is linked to move along a second direction, and the first direction is opposite to the second direction. The fixing component is movably connected to the second paper holding member. The sensing component is connected to the second paper receiving component. The fixed component is used to be operated to abut or disengage from the second paper resisting member, so that the paper clamping component can be converted between a fixed mode or a movable mode.

Preferably, the first paper resisting member includes a first resisting frame and a first rack portion connected to the first resisting frame, and the second paper resisting member includes a second resisting frame and a first rack portion connected to the second resisting frame. A second rack portion of the frame, the first rack portion and the second rack portion mesh with the gear member.

Preferably, the first paper resisting member further includes a first resisting frame connected to the first rack part, the second paper resisting member further includes a second resisting frame connected to the second rack part, and the base has a The guide rail groove, the first abutment frame and the second abutment frame are arranged in the guide rail groove and abut against both sides of the label paper roll respectively.

Preferably, the base is provided with a third rack portion adjacent to the guide rail groove. The fixing assembly includes a pressing portion and a positioning block connected to the pressing portion. The positioning block has a sawtooth structure. The pressing portion is provided on the upper surface of the base. The positioning block is arranged on the lower surface of the base, and the positioning block engages with the third rack part through a sawtooth structure.

Preferably, when the pressing part is not pressed, the sawtooth structure of the positioning block engages 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 downward to engage with the third rack part. disengage, leaving the paper clamp assembly in active mode.

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

Preferably, the sensing element is used to sense gaps between multiple labels on the label paper roll.

Preferably, the printing device further includes a fixed rod disposed on the base, the fixed rod is adjacent to the paper clamping assembly, and the fixed rod is used to fix the label paper roll.

To sum up, the present invention controls the paper clamping component to switch between a fixed mode or a movable mode through the structural design of the fixed component for being operated to contact or disengage the second paper resisting member. In addition, the printing device of the present invention can adjust the position of the sensing member through the design of the sensing member being connected to the second paper resisting member of the paper clamping assembly, so as to be suitable for label paper rolls of various specifications.

In order to further understand the characteristics and technical content of the present utility model, please refer to the following detailed description and drawings of the present utility model. However, the drawings provided are only for reference and explanation, and are not used to describe the present utility model. limit.

Description of drawings

Figure 1 is a schematic diagram of the printing device of the present invention.

Figure 2 is an expanded schematic view of the printing device of the present invention.

Figure 3 is a schematic diagram of a label paper roll installed on the base of the printing device of the present invention.

Figure 4 is a schematic side view of a label paper roll installed on the base of the printing device of the present invention.

Figure 5 is a schematic diagram of the base of the printing device of the present invention.

Figure 6 is a schematic diagram of the paper clamping assembly of the printing device of the present invention.

Figure 7 is a schematic diagram of the relative positions of the sensing element and the label paper roll of the printing device of the present invention.

Figure 8 is another schematic diagram of the relative positions of the sensing element and the label paper roll of the printing device of the present invention.

Detailed ways

The following is a description of the implementation of the "printing device" disclosed in the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depictions based on actual dimensions, as is stated in advance. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the scope of protection of the present invention.

It should be understood that although terms such as “first”, “second” and “third” may be used herein to describe various elements, these elements should not be limited by these terms. These terms are primarily used to distinguish one element from another element. In addition, the term "or" used in this article shall include any one or combination of more of the associated listed items depending on the actual situation.

Referring to FIGS. 1 and 2 , FIG. 1 is a schematic view of the printing device of the present invention, and FIG. 2 is an expanded schematic view of the printing device of the present invention. The utility model provides a printing device M, which includes a base 1, an upper housing 2, a paper clamping component 3 and a fixing component 4 (see Figure 6 for the paper clamping component 3 and the fixing component 4). The printing device M of the present invention may be, for example, a desktop or portable printing device, such as a barcode label printer or a thermal printer, but is not limited thereto. In the following description, only the differences between the present utility model and the existing desktop label printing device will be described. The printing device M of the present utility model may include the existing desktop label printing device. Contains the rest of the components.

The base 1 is used to accommodate a label paper roll P, and the upper housing 2 is movably pivotally connected to the base 1 . The upper housing 2 further includes 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 used to be operated to rotate in a direction away from or close to the base 1 . The paper clamping component 3 and the fixing component 4 are arranged on the base 1 .

Referring to FIGS. 3 and 4 , FIG. 3 is a schematic view of a label paper roll installed on the base of the printing device of the present invention. FIG. 4 is a side view of a label paper roll installed on the base of the printing device of the present invention. The label paper roll P is disposed on the upper surface 1A of the base 1 , and the paper clamping assembly 3 is disposed on the lower surface 1B of the base 1 . Next, refer to FIGS. 5 and 6 . FIG. 5 is a schematic view of the base of the printing device of the present invention, and FIG. 6 is a schematic view of the paper clamping assembly of the printing device of the present invention. The overall view of the paper clamping assembly 3 can be seen from Figures 4 and 6. Figure 4 shows the paper clamping assembly 3 from the side view of the base, and Figure 6 shows the paper clamping assembly 3 from the bottom view of the base. The paper clamping assembly 3 includes a first paper resisting member 31 , a second paper resisting member 32 and a gear member 33 .

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

As shown in Figures 3, 5 and 6, when the label paper roll P is placed on the base 1, the label paper roll P will cover the top of the guide rail groove 11 and be located on the first butt frame 312 and the second butt frame. between racks 322. Since the gear member 33 is located between the first rack portion 311 and the second rack portion 321 , the moving 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 resisting member 31 moves along a first direction (positive X-axis direction), the gear member 33 is driven to rotate, and the second teeth of the second paper resisting member 32 are rotated. The strip portion 321 is linked to move along a second direction (negative X-axis direction). At this time, the first resisting frame 312 of the first paper resisting member 31 and the second resisting frame 322 of the second paper resisting member 32 move along the guide groove 11 to approach each other, and then abut against the label paper roll P.

On the contrary, when the first rack part 311 moves along the second direction (negative X-axis direction) and the second rack part 321 moves along the first direction (positive X-axis direction), the first abutment frame 312 and the second abutment frame 312 move along the second direction (negative X-axis direction). The racks 322 will move along the guide groove 11 away from each other, thereby loosening the label paper roll P. It should be noted that the first abutment frame 312 and the second abutment frame 322 are mainly used to guide the label paper roll P to ensure stable output, that is, to prevent the label paper roll P from shaking left and right during the output process.

The overall view of the fixing component 4 can be seen in Figures 5 and 6. Figure 5 shows the fixing component 4 from a top view of the base 1, and Figure 6 shows the fixing component 4 from a bottom view of the base. The fixing component 4 is connected to the second paper resisting member 32 . The fixed component 4 is used to be operated to abut or disengage from the second paper resisting member 32 so that the paper clamping component 3 can be converted between a fixed mode or a movable mode. That is to say, the fixing component 4 is used to control whether the paper clamping component 3 is activated or not.

The fixing assembly 4 includes a pressing part 41, a positioning block 42 connected to the pressing part 41, and a spring member (not shown) connected between the pressing part 41 and the positioning block 42. The pressing part 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 sawtooth 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 through the sawtooth structure 421 .

Furthermore, when the pressing part 41 is not pressed, the sawtooth structure 421 of the positioning block 42 engages with the third rack part 12 . Since the fixing component 4 is connected to the second paper resisting member 32 , the second paper resisting 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 part 41 is pressed, the positioning block 42 moves downward along the negative Z-axis direction and separates from the third rack part 12 , so that the sawtooth structure 421 of the positioning block 42 no longer contacts the third rack part 12 . At this time, the paper clamping assembly 3 is in the active mode. Therefore, the user can depress the pressing portion 41 to disengage the positioning block 42 from the third rack portion 12 and further push the second paper resisting member 32 to drive the first paper resisting member 31 to move together, so that the first paper resisting member 31 moves together. The first resisting frame 312 of the member 31 and the second resisting frame 322 of the second paper resisting member 32 are closer to or farther away from each other.

As shown in FIGS. 3 , 5 and 6 , the printing device M also includes a sensing member 5 and a fixed rod 6 . The sensing member 5 is connected to the second resisting frame 322 and adjacent to the pressing part 41 . The fixing rod 6 is provided on the base 1 and adjacent to the paper clamping assembly 3 . The fixing rod 6 is used to fix the label paper roll P. The sensing element 5 is a gap sensor, which is used to detect the distance between adjacent labels on the surface of the label roll P, thereby confirming whether the printing position of the label is correct.

For example, the gap sensor is a photoelectric sensor, which is mainly composed of a light-emitting part that transmits light and a light-receiving part that receives light. When the projected light is blocked by the detection object, the amount of light reaching the light receiving part will change. Furthermore, the amount of light that passes through the tag and is received by the light-receiving part will be different from the amount of light that passes through the gap between the two tags and is received by the light-receiving part. Therefore, the sensing element 5 (gap sensor) can detect whether the label is located at the correct printing position through changes in the amount of light received.

Furthermore, the sensing component 5 is provided with a sensing range, and the label roll P must be within the sensing range in order to be sensed by the sensing component 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 will be located within the sensing range.

Referring to FIGS. 3 , 6 , 7 and 8 , FIGS. 7 and 8 are schematic diagrams of the sensing element and the label paper roll in different relative positions of the printing device of the present invention. The sensing element 5 is used to sense the gaps G between the 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 by the sensing range of the sensing member 5 , the user can depress the pressing portion 41 to disengage the positioning block 42 from the third rack portion 12 , and further The second resisting frame 322 of the second paper resisting member 32 is pushed closer to the label paper roll P (as shown by the dotted arrow in FIG. 8 ). Since the sensing member 5 is connected to the second resisting frame 322 , the sensing member 5 will also move toward the label roll P, so that the edge of the label roll P is within the sensing range of the sensing member 5 . In addition, after confirming that the sensing component 5 has been able to detect the gap between the adjacent labels P1 of the label roll P, the user can release the pressing part 41, and the pressing part 41 and the positioning block 42 are restored by the elasticity of the spring member. The positioning block 42 and the third rack portion 12 return to the mutually engaged state by force, thereby fixing the paper clamping assembly 3 and the sensing member 5 . Therefore, the present invention can be applied to label paper rolls P of various specifications by adjusting the position of the sensing member 5 .

Beneficial effects of the embodiment

To sum up, the present invention provides a printing device M, which includes a base 1, an upper housing 2, a paper clamping component 3 and a fixing component 4. Through the structural design between the first paper resisting member 31 , the second paper resisting member 32 and the gear member 33 of the paper clamping assembly 3 , the first resisting frame 312 and the second resisting frame 322 can clamp the label paper roll left and right. P to guide the label paper roll P to output stably and prevent the label paper roll P from shaking left and right during the output process.

Furthermore, through the structural design of the pressing part 41 and the positioning block 42 of the fixing component 4, the fixing component 4 is used to be operated to abut or disengage from the second paper resisting member 32, thereby controlling the paper clamping component 3 to be in a position. Switch between fixed mode or an active mode. In addition, the printing device M of the present invention can adjust the position of the sensing member 5 by connecting the sensing member 5 to the second resisting frame 322 of the paper clamping assembly 3, so as to be suitable for label paper rolls P of various specifications. .

The contents disclosed above are only preferred and feasible embodiments of the present utility model, and do not limit the protection scope of the present utility model. Therefore, all equivalent technical changes made by using the contents of the description and drawings of the present utility model are included in the present utility model. Within the scope of new protection.

Claims (8)

1. A printing device, characterized in that the printing device includes: a base for accommodating a label paper roll; An upper shell is pivotally connected to the base; A paper clamping assembly is provided on the base. The paper clamping assembly includes: a first paper holding member; a second paper holding member, and the first paper holding member respectively abuts against the label paper roll. both sides; and a gear member connected between the first paper resisting member and the second paper resisting member; wherein, when the first paper resisting member moves along a first direction, the gear is driven The piece rotates to cause the second paper-resisting piece to be linked and move in a second direction, and the first direction is opposite to the second direction; A sensing component connected to the second paper resisting component; A fixed component connected to the second paper resisting member, the fixed component is used to be operated to abut or disengage from the second paper resisting member, so that the paper clamping component can be in a fixed mode or a movable mode Convert between. 2. The printing device according to claim 1, wherein the first paper resisting member includes a first resisting frame and a first rack portion connected to the first resisting frame, and the The second paper resisting member includes a second resisting frame and a second rack portion connected to the second resisting frame. The first rack portion and the second rack portion are in contact with the gear member. mesh with each other. 3. The printing device according to claim 2, wherein the first paper resisting member further includes a first resisting frame connected to the first rack portion, and the second paper resisting member further It includes a second resisting frame connected to the second rack part, the base has a guide rail groove, the first resisting frame and the second resisting frame are arranged in the guide rail groove, and respectively 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, and the fixing component includes a pressing portion and a pressing portion connected to the pressing portion. a positioning block, the positioning block has a sawtooth structure, the pressing part is provided on the upper surface of the base, the positioning block is provided on the lower surface of the base, the positioning block engages with the sawtooth structure on the third rack portion. 5. The printing device according to claim 4, wherein when the pressing part is not pressed, the sawtooth structure of the positioning block engages with the third rack part so that the clamp The paper assembly is in the fixed mode; when the pressing part is pressed, the positioning block moves downward and disengages 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 resisting frame and adjacent to the pressing portion, and the sensing member is provided with a sensing range; when When the second abutment frame abuts against the edge of the label paper roll, the label paper roll will be located within the sensing range. 7. The printing device according to claim 6, wherein the sensing member is used to sense gaps between a plurality of labels on the label paper roll. 8. The printing device according to claim 1, wherein the printing device further includes a fixed rod disposed on the base, the fixed rod is adjacent to the paper clamping assembly, and the fixed rod piece is used to secure the label roll.