KR0131354Y1 - Paper unrolling apparatus - Google Patents

Abstract

The technical field to which the invention as described in the claims pertains: The present invention relates to a device for unfolding a thermal recording paper to prevent curling of the thermal recording paper before and after a printing operation.

2. The technical problem to be solved by the present invention: The present invention is to provide a thermal recording paper spreading device that allows the user to solve the inconvenience and smooth the progress of the thermal recording paper to prevent the jam caused by the curl of the thermal recording paper.

3. Summary of the Solution of the Invention: The present invention provides a guide paper which is supported on the upper frame to guide the thermal recording paper, one side of the guide paper is in contact with the other side, and the other side is supported by the recording tray to straighten the thermal recording paper. It is installed, the upper surface of the bracket is curled, one side of the guide paper is attached to the tape to smooth the scratches and transfer during transfer of the thermal recording paper.

4. Significant use of the present invention: The present invention flattens the curling of the thermal recording paper by using a bracket, so that the thermal recording paper is transported in an unfolded state during printing, thereby preventing it from falling off the pedestal. The space can be reduced, and since only a single part is installed, the number of parts can be reduced to reduce the cost, and it is convenient to repair. Since the tape is attached to the guide paper, the thermal recording paper is transported without damage, so that a clear image is obtained. It has a sustainable effect.

Description

Thermal recording paper spreader

1 (a) and (b) are schematic diagrams showing an apparatus for unfolding a thermal recording paper during a printing operation in a conventional printing apparatus.

Figure 2 is a schematic diagram showing a device for unfolding the thermal recording paper during the printing operation in the printing apparatus of the present invention.

3 is a perspective view showing the shape of the bracket in FIG.

Figure 4 is a schematic diagram showing an apparatus for unfolding the thermal recording paper during the printing operation in the printing apparatus according to another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10: roll 12: thermal recording paper

14: recording tray 16: main frame

18: Bracket 20a, 20b, 20c, 20d: Screw

22: guide paper 24: upper frame

26: thermal recording head (TPH) 28: roller shaft

30: platen roller 32: tape

34: curl 36a, 36b, 36c, 36d: hole

The present invention relates to a printing apparatus using a thermal recording paper, and more particularly, to an apparatus for unfolding a thermal recording paper to prevent curling of the thermal recording paper before and after a printing operation.

It is already known that with the rapid development of the telecommunications field, the spread of communication devices such as facsimile has also spread to general households.

On the other hand, a communication device such as a facsimile is provided with a printing device for printing the received information, such a printing device requires a paper for printing the received information.

In addition, the thermal recording paper is used so that a large amount of information can be directly printed on the printing paper in consideration of the amount of the received information.

However, the use of the thermal recording paper in the printing apparatus solves the problem of frequent replacement of the paper. However, when the thermal recording paper is printed out from the printing apparatus, the thermal recording paper is rolled up before printing, so the original state is returned. Drying phenomenon occurs.

In this regard, a schematic diagram showing a device for unfolding a thermal recording paper during a printing operation in a conventional printing apparatus showing the flow of the thermal recording paper in a printing apparatus commonly used in this field is shown in FIGS. 1 (a) and (b). Shown.

FIG. 1A is a schematic view showing a state in which a large amount of thermal recording paper is generally wound, and FIG. 1B is a schematic view showing a state in which less thermal recording paper is generally wound.

As shown in Figs. 1A and 1B, the configuration of the printing apparatus includes a recording tray 47 and a thermal recording paper 46 for supporting and supporting the thermal recording paper 46 on the roll 45. A paper guide 43 for extending and guiding, a platen roller 41 driven by the roller shaft 40, a thermal recording head 42 as a printing portion, and a paper guide 43 for supporting the paper guide 43. Guide support 44 is composed.

The printing operation of the printing apparatus as described above is as follows.

That is, in FIG. 1A, when the platen roller 41 of the roller shaft 40 rotates in the direction of the arrow, the thermal recording paper 46 on the roll 45 rotates in the direction of the arrow, and the thermal recording paper on the roll 45 is rotated. (46) is released and runs out.

At this time, the thermal recording paper 46 is guided to the curved shape of the lower portion of the paper guide 45 located in the guide groove 48 formed in the recording tray 47 so as to straighten the thermal recording paper 46. .

That is, when the thermal recording paper 46 wound around the roll 45 is unwound, the roll 45 is rolled up. However, the roll is generated as opposed to the initial curled state while passing through the paper guide 43. When supplied between the platen roller 41 and the thermal recording head 42, it is conveyed in an unfolded state.

Then, after the predetermined printing operation is performed in the thermal recording head 42, the thermal recording paper 46 comes out of the printing apparatus by the rotation of the platen roller 41.

In the case of using the above method, a fax using a thermal recording paper 46 generally needs to install a special paper guide 43 to straighten the thermal recording paper 46, and the platen roller 41 and the thermal recording paper 46 By forming the guide groove 48 in the recording tray 47 between the () and requires a large space, and also according to the shape of the paper guide 43 and the guide groove 48 and the mounting state of the paper guide Large transfer resistance is generated in the thermal recording paper 46 sandwiched between the 43 and the guide groove 48. This transfer resistance is because the contact surface of the paper guide 43 and the guide groove 48 is large. Due to the above transfer resistance, the unfolded state of the thermal recording paper 46 may be incomplete. In addition, curling of the thermal recording paper 46 may occur, thereby inhibiting a printing operation, or jamming occurs when the thermal recording paper 46 reverse feeds, and the paper received is rolled off the paper stand and rolled off the floor. There was a problem such as attending.

In order to solve the above problems, an object of the present invention is to provide a thermal recording paper spreading device that allows the user to solve the inconvenience and reduce the transfer resistance during transfer of the thermal recording paper to prevent jams caused by the curling of the thermal recording paper. .

Another object of the present invention is to provide a thermal recording paper spreading device that can utilize a narrow space of the device, and can reduce the cost by reducing the number of parts.

Still another object of the present invention is to provide a thermal recording paper spreading device which is easy to assemble and easy to repair.

Still another object of the present invention is to provide a thermal recording paper flattening apparatus which allows the thermal recording paper exiting the printing apparatus after the printing operation is finished without curling.

It is still another object of the present invention to provide a thermal recording paper spreading device that prevents the printing operation inhibition phenomenon (jam occurrence) of the printing device by curling the thermal recording paper.

It is another object of the present invention to provide a thermal recording paper spreading device for preventing scratches during transfer of thermal recording paper.

In order to achieve the above object, the present invention is supported on the upper frame so that the thermal recording paper can be transported in an unfolded state when the thermal recording paper on the roll mounted on the recording tray is transferred between the platen roller and the thermal recording head installed on one side. A guide paper for guiding the thermal recording paper is installed, and one side is in contact with the guide paper, and the other side is supported by a recording tray, and a bracket is installed to straighten the thermal recording paper. An upper surface of the bracket is formed with curls. One side of is characterized in that for attaching the tape to smooth the scratches and transfer during transfer of the thermal recording paper.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used for the same components, even if displayed on different drawings. And, in describing the present invention, it should be noted that a detailed description of a known function or configuration is omitted in order not to disturb the gist of the present invention.

2 is a schematic view showing an apparatus for unfolding the thermal recording paper 12 during a printing operation in the printing apparatus of the present invention. 3 is a perspective view showing the shape of the bracket 18 in FIG.

The thermal recording paper spreading device according to the present invention has a configuration of a printing apparatus as shown in FIG. 2, in which the recording tray 14 for supporting the thermal recording paper 12 on the roll 10 and the upper frame 24 are provided. A guide paper 22 for supporting and guiding the thermal recording paper 12 in an unfolded state is installed, and one side is supported on the lower surface of the recording tray, and the lower side of the guide paper 22 is in contact with the thermal recording paper 12. ) Is installed so as not to curl the bracket 18, the upper surface of the bracket 18 is curled by a curling process (34) is formed.

In addition, as shown in FIG. 3, the bracket 18 has a c-shaped cross section, each having a vertically extending surface on both sides thereof, and a lower end of each vertical surface is bent to form the paper tray ( Each hole 36a, hole 36b, hole 36c, and hole 36d to be supported by 14 are formed, and poles formed in the main body frame 16 are provided with the two holes 36b and 36c. ), And then each screw 20a, 20b for fitting into the two holes 36a, 36d, is also provided, and also the top of both vertical surfaces of the bracket 18 and the curl 34 It is formed in a curved surface between the lower ends of the shape.

The platen roller 30 driven by the roller shaft 28 is provided at the upper end of the main body frame 16, and is composed of a thermal recording head 26 as a printing portion.

It describes the operation of the thermal recording paper spreading device which is an embodiment of the present invention configured as described above.

The thermal recording paper flattening device includes a thermal recording head 26 installed on the upper frame 24 while the thermal recording paper 12 on the roll 10 mounted on the recording paper 14 of the facsimile passes through the upper portion of the platen roller 30. Is received on the thermal recording paper 12 and guided to the upper and lower guides by the rotation of the roller, so that the thermal recording paper 12 is well formed by the upper and lower cutter blades at a predetermined length while passing through the cutting device. The printed thermal recording paper 12 is discharged through the outlet.

At this time, the thermal recording paper spreading device curls the lower end of the guide paper 22 and the brackets 34 with the thermal recording paper 12 transported between the platen roller 30 and the thermal recording head 26 therebetween. In accordance with the shape of the contact and the contact portion, a predetermined elastic force is applied to the thermal recording paper 12 to transfer the curled state of the thermal recording paper 12 rolled up on the roll 10 in an unfolded state.

The shape and function of the lower end of the guide paper 22 and the curl 34 of the bracket 18 will be described in detail with reference to FIGS. 2 and 3.

The thermal recording paper spreader reduces the contact area between the lower end of the guide paper 22 and the curl 34 of the bracket 18. As a result, the thermal recording paper 12 is made smaller by reducing the contact resistance of the thermal recording paper 12 conveyed between the lower end of the guide paper 22 and the curl 34 of the bracket 18 during the transfer of the thermal recording paper 12. ) To facilitate the transfer. Further, as shown in FIG. 2, the shape of the lower end of the guide paper 22 and the curl 34 of the bracket 18 is formed in a structure in which a bent portion having a predetermined rounding surface is symmetric with each other.

That is, the end direction of the curved surface of the curl 34 of the bracket 18 is such that the thermal recording paper 12 rolled up on the roll 10 can be easily inserted into the curl 34 portion of the bracket 18. It is bent in the direction (10) side, the lower end shape of the guide paper 22 is formed in the opposite direction to the curl 34 portion of the bracket 18, as shown in Figure 2 to form the guide paper It is to be easily supplied between the platen roller 30 and the thermal recording head 26 between the lower end of the 22 and the curl 34 of the bracket 18.

In addition, the thermal recording paper 12 wound on the roll 10 is conveyed while being rolled up on the roll 10, and passes between the lower end of the guide paper 22 and the curl 34 of the bracket 18. As shown in FIG. 2, the thermal recording paper 12 is curled as opposed to the initial curled state according to the shape and contact state of the lower end of the guide paper 22 and the curl 34 of the bracket 18. Conveyed in an unfolded state. As a result, when the thermal recording paper 12 is supplied between the platen roller 30 and the thermal recording head 26, the thermal recording paper 12 is in an unfolded state as opposed to the curled state of the roll 10.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the thermal recording paper spreading device according to the present invention, as shown in FIG. 4, the configuration of the printing apparatus includes a recording tray 14 for supporting the thermal recording paper 12 on the roll 10, and an upper frame 24. A guide paper 22 is installed to guide the thermal recording paper 12 in an unfolded state, and one side is supported on the lower surface of the recording tray 14, and the bottom surface of the guide paper 22 is in contact with the thermal paper. A bracket 18 is provided to straighten the recording paper 12 so that it is not curled. The upper surface of the bracket 18 is curled by a curling process.

In addition, as shown in FIG. 3, the bracket 18 has a c-shaped cross section, each having a vertically extending surface on both sides thereof, and a lower end of each vertical surface is bent to form the paper tray ( Each hole 36a, a hole 36b, a hole 36c, and a hole 36d to be supported by 14 are formed, and pole poles formed in the main body frame 16 are formed by the two holes 36b and 36c. ), And then each screw 20a, 20b for fitting into the two holes 36a, 360, is also provided, and also the top of the two vertical surfaces of the bracket 18 and the curl 34 It is formed in a curved surface between the lower ends of the shape.

A tape 32 is attached to the lower end of the guide paper 32 to prevent scratches during the transfer of the thermal recording paper 12 and to facilitate the transfer. The tape 32 uses a sliding tape.

The platen roller 30 driven by the roller shaft 28 is provided in the upper end of the main body frame 16, and is comprised by the thermal recording head 26 as a printing part.

It describes the operation of the thermal recording paper spreading device which is another embodiment of the present invention configured as described above.

Content received by the thermal recording head 26 mounted on the upper frame 24 while the thermal recording paper 12 on the roll 10 mounted in the facsimile recording tray 14 passes over the top of the platen roller 30. The thermal recording paper 12 is recorded on the thermal recording paper 12 and is guided to the upper and lower guides by the rotation of the roller, and the thermal recording paper 12 is cut through the outlet by cutting the upper and lower cutter blades to a predetermined length while passing the cutting device. The thermal recording paper 12 is discharged.

At this time, the guide paper 22 supported by the upper frame 24 in order to transfer the dried thermal recording paper 12 to the platen roller 30 while unrolling the rolled heat-sensitive recording paper 12 on the recording tray 14. Since the curl 34 formed at the lower end of the bracket and the upper end of the bracket 18 are in contact with each other, the thermal recording paper 12 is moved toward the platen roller 30 by pushing the thermal recording paper 12 toward the front side by the respective elastic force, thereby transferring the thermal recording paper. (12) is unfolded in a curled state, and because the tape 32 is attached to the guide paper 32, the thermal recording paper 12 is discharged to the support without being damaged during transportation.

That is, when the thermal recording paper 12 wound on the roll 10 is released, the thermal recording paper 12 is unrolled from the roll 10, but the lower end of the guide paper 22 to which the tape 36 is attached and the bracket 18 The thermal recording paper 12 is not scratched while passing between the curls 34, and curling occurs as opposed to the initial curling state, and consequently, when it is fed between the platen roller 30 and the thermal recording head 26, Will be transferred to the state.

The thermal recording paper spreading device according to the embodiment of the present invention as described above facilitates the transfer of the thermal recording paper by using the shape of the lower end of the guide paper and the bracket of the bracket, and the thermal recording paper is conveyed in an unfolded state during printing. To prevent it from falling out, to reduce the space between the platen roller and the recording tray, and to reduce the number of parts, thereby reducing the cost, convenient to repair, because the tape is attached to the guide paper There is an effect that the thermal recording paper can be transported without being damaged to maintain a clear image.

Claims (4)

In the thermal recording paper spreading device, when the thermal recording paper 12 on the roll 10 mounted on the recording tray 14 is transported between the platen roller 30 and the thermal recording head 26 provided on one side, the thermal recording paper ( A guide paper 22 which is supported by the upper frame 24 to guide the thermal recording paper 12 and one end of the guide paper 22 is in contact with the other end of the recording paper so as to be transported in an open state. A bracket 18 fixedly coupled to 14 to guide the transfer of the thermal recording paper 12, and extending from one end of the bracket 18 to be in contact with one side of the guide paper 22, between the contact surfaces. A thermal recording paper spreading device, characterized in that it comprises a curl 34 formed with a predetermined elastic force so that the thermal recording paper 12 is passed. According to claim 2, wherein the bracket is formed between the upper end of the vertical surface on both sides of the bracket 18 and the lower end of the shape of the curl 34, the other end of the bracket 18 is screwed to the recording tray 14, respectively The end surface of the curved surface 34 of the curl 34 of the bracket 18 may allow the thermal recording paper 12 rolled on the roll 10 to be easily inserted into the curl 34 of the bracket 18. 10) It is bent in the lateral direction, the lower end of the guide paper 22, the thermal recording paper sheet spreader, characterized in that to form a bent to be symmetrical in the opposite direction to the curl (34) portion of the bracket (18). In the thermal recording paper spreading device, when the thermal recording paper 12 on the roll 10 mounted on the recording tray 14 is transported between the platen roller 30 and the thermal recording head 26 provided on one side, the thermal recording paper ( A guide paper 22 which is supported by the upper frame 24 and guides the thermal recording paper 12 so as to be transported in an unfolded state, and is attached to one side of the guide paper 22 so that the thermal recording paper 12 Tape 32 to prevent scratches during the transfer of the), and one end of the guide paper 22 and the other end is fixedly coupled to the recording tray 14, the bracket for guiding the transfer of the thermal recording paper 12 ( 18) and a curl 34 formed with a predetermined elastic force to extend the thermal recording paper 12 extending from one end of the bracket 18 to be in contact with one side of the guide paper 22 and passed between the contact surfaces. Unfold the thermal recording paper, characterized in that it comprises a Device. The method of claim 5, wherein the bracket 18 is formed between the upper end of the vertical surface and the lower end of the curl 34 shape of the curved surface, the other end of the bracket 18 is screwed to the recording tray 14, respectively The end surface of the curved surface 34 of the curl 34 of the bracket 18 may allow the thermal recording paper 12 rolled on the roll 10 to be easily inserted into the curl 34 of the bracket 18. 10) It is bent in the lateral direction, the lower end of the guide paper 22, the thermal recording paper sheet spreader, characterized in that to form a bent to be symmetrical in the opposite direction to the curl (34) portion of the bracket (18).