JP5929104B2 - Label peeling mechanism, label peeling mechanism control method, and label printing apparatus - Google Patents

Description

  The present invention relates to a label peeling mechanism for peeling a label from a mount and a method for controlling the label peeling mechanism. The present invention also relates to a label printing apparatus having such a label peeling mechanism or a label peeling mechanism controlled by a control method of the label peeling mechanism.

  2. Description of the Related Art Conventionally, a label printer including a label peeling mechanism that peels a label from a label paper in which a plurality of labels is attached to a belt-like mount is known (for example, see Patent Document 1). The label printer described in Patent Document 1 includes a supply unit that supplies label paper, and a take-up shaft that winds up the mount after the label is peeled off. Between the supply unit and the take-up shaft, a thermal head that prints on the label and a turning member for peeling off the label from the mount are arranged in this order from the upstream side of the paper path through which the label paper passes. Has been placed. The paper path is bent at an acute angle with the turning member for separation as a boundary. The label paper supplied from the supply unit is conveyed to the downstream side of the paper path, and the label after printing by the thermal head is peeled from the mount by the turning member for peeling. That is, the printed label is peeled off from the front end side. Further, the mount after the label is peeled is wound around the winding shaft.

  Like the label printer described in Patent Document 1, the label paper is transported to the downstream side of the paper path, and the label paper is peeled off from the mount by changing the transport direction of the label paper so that the label paper is bent by the turning member for peeling. In order to properly peel off the label, and to properly convey the label paper downstream of the paper turning path from the peeling turning member, the label paper is placed downstream of the paper turning path from the peeling turning member. A mechanism for transporting is required. In the label printer described in Patent Document 1, a peeling roller and a winding shaft are provided on the downstream side of the paper path from the peeling turning member. Therefore, in this label printer, when label paper is set in the label printer, it is necessary to set the leading end side of the label paper to the take-up shaft, and printing is performed on at least the first label on the leading end side of the label paper. I can't. That is, in this label printer, at least the first label on the leading end side of the label paper is wasted.

  Therefore, a label printer that can perform printing from the first label on the leading end side of the label paper has been proposed (for example, see Patent Document 2). In the label printer described in Patent Document 2, the label roll paper formed by winding the label paper before printing into a roll is arranged inside the printer, and the outside of the printer is arranged along the paper path of the label paper. Label paper is guided up to. The paper path is a gentle curve. In the paper path, a print head for printing on the label and a peeling blade member for peeling the label from the mount are arranged in this order from the upstream side of the paper path. A platen roller is opposed to the print head, and the label paper is conveyed by the platen roller. The peeling blade member does not peel the label from the mount when the label paper is transported to the downstream side of the paper path, and peels the label from the mount when the label paper is transported to the upstream side of the paper path. It is configured. That is, in this label printer, the printed label is peeled off from the rear end side. Further, the peeling blade member can be retracted from the paper path in order to prevent the label from being peeled from the mount even when the label paper is conveyed upstream of the paper path.

  In the label printer described in Patent Document 2, since the label is peeled from the mount using the peeling blade member while transporting the label paper to the upstream side of the paper path, the paper path has a gently curved shape. Therefore, even if a mechanism for transporting the label paper to the downstream side of the paper path from the peeling blade member is not provided, the label is appropriately peeled, and at the downstream side of the paper path from the peeling blade member. It is possible to appropriately convey the label paper. That is, in this label printer, when label paper is set in the label printer, as in the label printer described in Patent Document 1, a label is placed on the take-up shaft that is arranged on the downstream side of the paper path from the turning member for peeling. It is not necessary to set the leading end side of the paper, and therefore it is possible to set the leading end side of the label paper at the position of the print head. Therefore, in this label printer, printing can be performed from the first label on the leading end side of the label paper. In this label printer, when label paper is set in the label printer, first, label roll paper is set in a storage unit inside the printer, and then the label paper is pulled out and set in a paper path. Thereafter, the label paper is conveyed to the upstream side of the paper path so that the leading end side of the label paper returns to the position of the print head. At this time, the peeling blade member is retracted from the paper path so that the label is not peeled off from the mount.

JP 2003-312936 A JP 2005-219342 A

  As described above, in the label printer described in Patent Document 2, printing can be performed from the first label on the leading end side of the label paper. However, in this label printer, since the label is peeled from the mount using the peeling blade member, the label peeled from the mount adheres to the peeling blade member. In the label printer described in Patent Document 2, although the peeling blade member is subjected to non-adhesive treatment such as silicon coating, the label adheres to the peeling blade member, so the adhesive strength of the label and the ability of non-adhesive treatment are reduced. There is a risk.

  Accordingly, an object of the present invention is to prevent a peeled label from sticking to a component, which can be peeled off by performing a predetermined process from the first label on the leading end side of the label paper. The present invention is to propose a label peeling mechanism and a control method for the label peeling mechanism. Moreover, the subject of this invention is providing the label printing apparatus which has a label peeling mechanism controlled by this label peeling mechanism or the control method of this label peeling mechanism.

In order to solve the above problems, a label peeling mechanism according to the present invention includes a transport mechanism that transports a label paper having a plurality of labels and a mount on which the plurality of labels are attached at predetermined intervals, and the label paper is transported. A folding mechanism configured to bend the paper path at a predetermined position, and the folding mechanism causes the paper path downstream from the predetermined position when the label paper is conveyed by a predetermined amount downstream from the predetermined position. Rotating and bending the predetermined position as a fulcrum, and the conveying mechanism conveys the label paper to the upstream side of the paper path when the folding mechanism bends the paper path.

  In the label peeling mechanism of the present invention, the folding mechanism folds the paper path when the transport mechanism transports a predetermined amount of label paper downstream of the paper path, and the transport mechanism folds the paper path when the folding mechanism folds the paper path. The label paper is conveyed to the upstream side, and the label is peeled off from the mount. Therefore, the label can be appropriately peeled without providing a mechanism for transporting the label paper downstream from the folding position of the paper path. Further, when the label paper is transported to the downstream side of the paper path, since the paper path is not bent, a mechanism for transporting the label paper to the downstream side of the folding position of the paper path is not provided. It becomes possible to appropriately convey the label paper downstream of the folding position of the paper path. That is, according to the present invention, when label paper is set in the label peeling mechanism, the label is placed on the take-up shaft arranged on the downstream side of the paper path from the turning member for peeling, as in the label printer described in Patent Document 1. There is no need to set the leading end side of the paper. For example, when the label peeling mechanism is mounted on the label printing apparatus, the leading end side of the label paper can be set at the position of the print head. Therefore, according to the present invention, it is possible to perform a predetermined process from the first label on the leading end side of the label paper and peel it off.

  In the present invention, the folding mechanism bends the paper path to fold the label paper, and in that state, the label paper is transported to the upstream side of the paper path to peel the label from the mount. That is, in the present invention, unlike the label printer described in Patent Document 2, it is possible to peel the label from the mount without using a peeling blade member. Therefore, according to the present invention, it is possible to prevent the peeled label from sticking to the components of the label peeling mechanism.

In the present invention, the downstream portion from the predetermined position of the paper path, the at a predetermined position, the more the predetermined position angle between the upstream portion preferably rotated to Rukoto the position is an acute angle. With this configuration, when the paper path is bent, the label paper is bent at an acute angle, so that the label is easily peeled from the mount.

In the present invention, it is preferable that the label peeling mechanism has a cutting mechanism for cutting the mount from which the label has been peeled, on the downstream side of the paper path from the predetermined position. With this configuration, since the mount after the label is peeled can be cut by the cutting mechanism, the load on the transport mechanism can be reduced when the label paper is transported to the upstream side of the paper path. .

In the present invention, prior SL has taken out mechanism to Ride preparative the label peeled from the backing sheet, Rukoto the takeout mechanism rotates said feed path downstream of said predetermined position are preferred. If comprised in this way, even if it does not provide the mechanism for exclusive use for bending a paper path | route, a paper path | route can be bent using an extraction mechanism. Therefore, the configuration of the bending mechanism can be simplified.

  In the present invention, it is preferable that the take-out mechanism has an adsorption mechanism that sucks and adsorbs the non-adhesive surface of the label peeled from the mount. If comprised in this way, it will become possible to hold | maintain the label peeled from the mount with a suction mechanism.

In the present invention, has a detection mechanism for detecting the end of the label, the folding mechanism is based on the detection of the detection mechanism, Rukoto folding the paper path is preferred. If comprised in this way, based on the detection result of a detection mechanism, it will become possible to bend a label paper in the position which can peel a label appropriately from a base_sheet | mounting_paper.

Moreover, in order to solve said subject, the control method of the label peeling mechanism of this invention is the label peeling which peels the said label from the label paper which has several labels and the base_sheet | mounting_paper on which the said several labels are affixed by predetermined spacing A mechanism control method, comprising: transporting the label paper along a paper path; and after the label paper has been transported by a predetermined amount downstream from a predetermined position, the paper path downstream from the predetermined position. And rotating the predetermined position as a fulcrum and folding the paper, and transporting the label paper upstream from the paper path after the paper path is bent.

  In the label peeling mechanism control method of the present invention, after a predetermined amount of label paper is conveyed to the downstream side of the paper path, the paper path is bent, and then the label paper is conveyed to the upstream side of the paper path to remove the label from the mount. It is peeling. Therefore, the label can be appropriately peeled without providing a mechanism for transporting the label paper downstream from the folding position of the paper path. Further, when the label paper is transported to the downstream side of the paper path, since the paper path is not bent, a mechanism for transporting the label paper to the downstream side of the folding position of the paper path is not provided. It becomes possible to appropriately convey the label paper downstream of the folding position of the paper path. That is, according to the present invention, when label paper is set in the label peeling mechanism, the label is placed on the take-up shaft arranged on the downstream side of the paper path from the turning member for peeling, as in the label printer described in Patent Document 1. There is no need to set the leading end side of the paper. For example, when the label peeling mechanism is mounted on the label printing apparatus, the leading end side of the label paper can be set at the position of the print head. Therefore, according to the present invention, it is possible to perform a predetermined process from the first label on the leading end side of the label paper and peel it off.

  Further, in the present invention, the label paper is folded by folding the paper path, and in that state, the label paper is transported to the upstream side of the paper path to peel the label from the mount. That is, in the present invention, unlike the label printer described in Patent Document 2, it is possible to peel the label from the mount without using a peeling blade member. Therefore, according to the present invention, it is possible to prevent the peeled label from sticking to the components of the label peeling mechanism.

  The label peeling mechanism of the present invention or the label peeling mechanism controlled by the control method of the label peeling mechanism of the present invention has a print head that is arranged on the upstream side of the paper path from the folding position and performs printing on the label. It can be used in a label printing apparatus. In this label printing apparatus, printing can be performed from the first label on the leading end side of the label paper. Moreover, in this label printing apparatus, it becomes possible to prevent the peeled label from sticking to the components of the label peeling mechanism.

1 is a schematic diagram of a label printing apparatus according to an embodiment of the present invention. Schematic of the other state of the label printing apparatus concerning embodiment of this invention. Schematic of the label printing apparatus concerning other embodiment of this invention. Schematic of the label printing apparatus concerning other embodiment of this invention.

  Hereinafter, a label peeling mechanism, a label peeling mechanism control method, and a label printing apparatus to which the present invention is applied will be described with reference to the drawings.

(Configuration of label printer)
1A and 1B are schematic views of a label printing apparatus 1 according to an embodiment of the present invention. FIG. 1A is a diagram illustrating a state when a label sheet 7 is set in the label printing apparatus 1, and FIG. FIG. 7 is a diagram illustrating a state after the label paper 7 is conveyed to the downstream side of the path 8. 2A and 2B are schematic views of the label printing apparatus 1, in which FIG. 2A shows a state after the paper path 8 is bent, and FIG. 2B shows the label paper 7 being conveyed upstream of the paper path 8. FIG. It is a figure which shows the state after the label 3 peeled from the base_sheet | mounting_paper 2. FIG.

  The label printing apparatus 1 of this embodiment is an apparatus for printing on a label 3 attached to a mount (release paper) 2 and peeling the printed label 3 from the mount 2. The label printing apparatus 1 includes a print head 5 that prints on the label 3 and a label peeling mechanism 6 that peels the label 3 from the mount 2. Inside the label printing apparatus 1 is formed a paper path 8 through which a label paper 7 composed of a mount 2 and a plurality of labels 3 passes. In the label paper 7, a plurality of labels 3 are affixed to a mount 2 formed in a band shape at regular intervals.

  The paper path 8 can be folded at a predetermined folding position P. Specifically, a portion (downstream portion) 8a extending downstream from the folding position P of the paper path 8 is rotatable about the folding position P as a fulcrum. In this embodiment, as shown in FIG. 1, the downstream portion 8a includes a portion (upstream portion) 8b extending upstream from the folding position P of the paper path 8 and a label paper 7 passing through the downstream portion 8a in a straight line. As shown in FIG. 2, the angle between the upstream portion 8b and the downstream portion 8a (that is, the label paper 7 passing through the downstream portion 8a and the label paper 7 passing through the upstream portion 8b) It is possible to rotate between a position where the angle is an acute angle.

  A label roll paper 9 formed by winding the label paper 7 in a roll shape is accommodated at the upstream end of the paper path 8. A downstream portion 8 a of the paper path 8 includes a guide member 10 that guides (guides) one surface (the lower surface in FIG. 1) of the label paper 7, and a pressing roller 11 that presses the label paper 7 toward the guide member 10. And is formed by. The pressing roller 11 is disposed to face the guide member 10 across the paper path 8, and the label paper 7 passes between the guide member 10 and the pressing roller 11. The pressing roller 11 is urged toward the guide member 10 by an urging member (not shown). The pressing roller 11 is a driven roller that is not connected to a driving source such as a motor.

  The print head 5 is a thermal head. The print head 5 is disposed on the upstream side of the paper path 8 from the folding position P. The label peeling mechanism 6 includes a transport mechanism 13 that transports the label paper 7 to the downstream side and the upstream side of the paper path 8 and a folding mechanism 14 that bends the paper path 8 at the folding position P. Further, the label peeling mechanism 6 includes a detection mechanism 15 for detecting the folding timing of the paper path 8 by the folding mechanism 14. In addition, illustration of the detection mechanism 15 is abbreviate | omitted in FIG.

  The transport mechanism 13 includes a platen roller 16 disposed to face the print head 5. The platen roller 16 faces the print head 5 with the paper path 8 interposed therebetween. The label paper 7 passes between the print head 5 and the platen roller 16 when being conveyed to the downstream side and the upstream side of the paper path 8 by the platen roller 16. A drive mechanism (not shown) is connected to the platen roller 16. This drive mechanism includes, for example, a motor as a drive source and a power transmission mechanism that transmits the power of the motor to the platen roller 16. The motor is, for example, a stepping motor.

  The bending mechanism 14 includes a rotation mechanism (not shown) that rotates the downstream portion 8a of the paper path 8 around the fulcrum shaft 17 disposed at the bending position P. This rotating mechanism includes, for example, a motor that is a drive source and a power transmission mechanism that transmits the power of the motor to the downstream portion 8a. Further, the bending mechanism 14 moves the downstream portion 8a around the fulcrum shaft 17 in the clockwise direction in FIG. 1 (the direction in which the label paper 7 passing through the upstream portion 8b and the downstream portion 8a is linear). An urging member (not shown) such as an urging spring is provided. As shown in FIG. 1, at the position where the label paper 7 passing through the upstream portion 8b and the downstream portion 8a is linear, the downstream portion 8a regulates the rotation of the downstream portion 8a in the clockwise direction. It abuts against a stopper member (not shown) and is positioned by the stopper member. Note that the drive source of the rotation mechanism that rotates the downstream portion 8a may be a cylinder or the like.

  The detection mechanism 15 is, for example, an optical sensor that includes a light emitting element and a light receiving element. For example, the detection mechanism 15 is disposed between the print head 5 and the bending position P. Further, the detection mechanism 15 is arranged so that the light emitting element and the light receiving element face each other with the paper path 8 interposed therebetween. In this embodiment, when the rear end (upstream end of the paper path 8) 3a of the label 3 is detected by the detection mechanism 15, the label paper 7 is conveyed downstream by a predetermined amount and stopped. The paper path 8 is bent. For example, when the rear end 3a of the label 3 is detected by the detection mechanism 15, the label paper 7 is conveyed until the rear end 3a of the label 3 reaches the folding position P as shown in FIG. In that state, the paper path 8 is bent as shown in FIG. The conveyance amount of the label sheet 7 after the detection mechanism 15 detects the rear end 3a of the label 3 is set based on, for example, the number of steps of a stepping motor that drives the platen roller 16. The label paper 7 may be conveyed and stopped until the rear end 3a of the label 3 passes the folding position P, and the paper path 8 may be bent in this state.

(Operation of label printer)
In the label printing apparatus 1 configured as described above, printing is performed on the label 3 as described below, and the label 3 is peeled off from the mount 2. First, as shown in FIG. 1A, for example, the leading end (the downstream side of the paper path 8) of the first label 3 on the leading end side of the label paper 7 (hereinafter, this label 3 is referred to as “label 3A”). The label paper 7 is set in the label printing apparatus 1 so that the edge 3b is sandwiched between the print head 5 and the platen roller 16. At this time, the downstream portion 8a is arranged at a position where the label paper 7 passing through the upstream portion 8b and the downstream portion 8a of the paper path 8 is linear.

  Thereafter, printing is performed on the label 3 </ b> A by the print head 5 while the label paper 7 is conveyed to the downstream side of the paper path 8 by the platen roller 16. Further, even after the printing of the label 3A is finished, the label paper 7 is moved downstream of the paper path 8 by the platen roller 16 until the rear end 3a of the label 3A reaches the folding position P as shown in FIG. Transport to the side and stop. When the rear end 3a of the label 3A reaches the folding position P, the second label 3 from the front end of the label paper 7 (hereinafter, this label 3 is referred to as “label 3B”) is the print head 5 and the platen roller 16. In this case, printing on the label 3B is not performed. At this time, when the rear end 3a of the label 3A reaches the folding position P based on the detection result of the detection mechanism 15, the label paper 7 is stopped.

  Thereafter, the paper path 8 is bent as shown in FIG. In other words, the downstream portion 8a of the paper path 8 (specifically, the guide member 10 and the pressing roller 11) is rotated in the counterclockwise direction in FIG. . When the paper path 8 is bent, the mount 2 is bent between the rear end 3a of the label 3A and the front end 3b of the label 3B. Thereafter, the label paper 7 is conveyed to the upstream side of the paper path 8 by the platen roller 16. For example, the label paper 7 is conveyed and stopped until the leading end 3b of the label 3A reaches the folding position P. At this time, as shown in FIG. 2B, the leading end 3b of the label 3B is disposed on the upstream side of the paper path 8 relative to the print head 5. Further, when the label paper 7 is conveyed to the upstream side of the paper path 8, the label 3 is peeled from the mount 2.

  Thereafter, the downstream portion 8a of the paper path 8 is rotated clockwise in FIG. 2 to a position where the label paper 7 passing through the upstream portion 8b and the downstream portion 8a becomes a straight line by the turning mechanism. The above-described operation is performed again to print the label 3B, and the label 3B is peeled from the mount 2. In the following, the same operation is performed to print the third and subsequent labels 3 from the leading edge of the label paper 7, and the printed label 3 is peeled off from the mount 2. Note that the label 3 peeled off from the mount 2 is picked and taken out by a user of the label printing apparatus 1 and attached to a predetermined product or the like. Further, the mount 2 after the label 3 is peeled is recovered as it is, for example, in a recovery section (not shown) of the mount 2.

(Main effects of this embodiment)
As described above, in this embodiment, until the rear end 3a of the label 3 reaches the folding position P, the label paper 7 is conveyed to the downstream side of the paper path 8 by the platen roller 16 and stopped. The paper path 8 is bent. In this embodiment, after the paper path 8 is bent, the label paper 7 is conveyed to the upstream side of the paper path 8 by the platen roller 16, and the label 3 is peeled off from the mount 2. Therefore, the label 3 can be appropriately peeled without providing a mechanism for transporting the label paper 7 downstream of the folding position P in the paper path 8. Further, in this embodiment, when the label paper 7 is transported to the downstream side of the paper path 8, the downstream portion 8a is arranged at a position where the label paper 7 passing through the upstream portion 8b and the downstream portion 8a is linear. Therefore, the label paper 7 can be appropriately transported downstream of the folding position P without providing a mechanism for transporting the label paper 7 downstream of the folding position P. it can. Therefore, in this embodiment, unlike the label printer described in Patent Document 1, it is not necessary to set the leading end side of the label paper on the take-up shaft arranged on the downstream side of the paper path from the peeling turning member. The tip 3b of 3A can be set at the position of the print head 5. As a result, in this embodiment, printing can be performed from the first label 3A on the leading end side of the label paper 7, and the label 3A can be peeled off from the mount 2.

  In this embodiment, after the paper path 8 is bent, the label paper 7 is transported to the upstream side of the paper path 8 by the platen roller 16 to peel the label 3 from the mount 2, and the label printer described in Patent Document 2 Thus, the label 3 can be peeled from the mount 2 without using a peeling blade member. Therefore, in this embodiment, it is possible to prevent the peeled label 3 from sticking to the components of the label printing apparatus 1.

  In this embodiment, the downstream portion 8a can be rotated to a position where the angle formed by the label paper 7 passing through the downstream portion 8a of the paper path 8 and the label paper 7 passing through the upstream portion 8b becomes an acute angle. ing. Therefore, it becomes easy to peel off the label 3 from the mount 2. In this embodiment, the label paper 7 is stopped and the paper path 8 is bent based on the detection result of the detection mechanism 15. Therefore, the label paper 7 can be bent at a position where the label 3 can be appropriately peeled from the mount 2.

(Other embodiments)
In the embodiment described above, the mount 2 after the label 3 is peeled off is collected as it is in the collection unit. However, the mount 2 after the label 3 is peeled off may be collected in the collection unit after being cut. good. That is, as shown in FIG. 3, a cutting mechanism 21 that cuts the mount 2 from which the label 3 has been peeled may be disposed downstream of the folding position P in the paper path 8. The cutting mechanism 21 is a cutter, for example, and is disposed immediately after the guide member 10 in the example shown in FIG. Further, the cutting mechanism 21 is, for example, after the first label 3A on the leading end side of the label paper 7 is peeled off, and after the leading end of the label paper 7, the rear end 3a of the second and subsequent labels 3. Reaches the bending position P and the paper path 8 is bent, and the mount 2 is cut. In this case, the load applied to the transport mechanism 13 when the label paper 7 is transported to the upstream side of the paper path 8 can be reduced.

  In the embodiment described above, the user of the label printing apparatus 1 picks up and picks up the label 3 peeled off from the mount 2, but the label peeling mechanism 6 removes the label 3 peeled off from the mount 2 as shown in FIG. A take-out mechanism 23 such as a robot for picking up may be provided. In this case, it is preferable to bend the paper path 8 by the operation of the take-out mechanism 23. For example, it is preferable to bend the paper path 8 by pressing a fixed shaft that rotatably supports the pressing roller 11 by the take-out mechanism 23. In this way, it is not necessary to provide a separate rotation mechanism for rotating the paper path 8. Therefore, the configuration of the bending mechanism 14 can be simplified. Further, in this case, the take-out mechanism 23 includes an adsorption mechanism 24 that sucks and adsorbs the non-adhesive surface of the label 3 peeled from the mount 2 (the surface opposite to the surface adhered to the mount 2). It is preferable. In this way, the label 3 peeled from the mount 2 can be held by the suction mechanism 24.

  In the above-described form, the label paper 7 that passes through the upstream portion 8b and the downstream portion 8a is linear in the paper path 8 before being bent. However, in the paper path 8 before being bent, the upstream portion The paper path 8 may be configured so that the label paper 7 passing through the 8b and the downstream portion 8a has a curved shape that is gently curved. In the embodiment described above, the label peeling mechanism 6 is mounted on the label printing apparatus 1, but the label peeling mechanism 6 may be mounted on an apparatus other than the label printing apparatus 1. For example, the label peeling mechanism 6 may be mounted on a label peeling device having only a function of peeling the label 3 from the mount 2.

  DESCRIPTION OF SYMBOLS 1 ... Label printing apparatus, 2 ... Mount, 3 ... Label, 5 ... Print head, 6 ... Label peeling mechanism, 7 ... Label paper, 8 ... Paper path, 8a ... Downstream part (part extending from the folding position of the paper path to the downstream side), 8b ... Upstream part (part extending from the folding position of the paper path to the upstream side), 13 ... Conveying mechanism, ..Bending mechanism, 15 ... detecting mechanism, 21 ... cutting mechanism, 23 ... extraction mechanism, 24 ... adsorption mechanism, P ... folding position

Claims (8)

A transport mechanism for transporting label paper having a plurality of labels and a mount on which the plurality of labels are attached at predetermined intervals;
A folding mechanism for folding the paper path through which the label paper is conveyed at a predetermined position,
The folding mechanism is configured to bend the paper path downstream from the predetermined position with the predetermined position as a fulcrum when the label paper is conveyed by a predetermined amount downstream from the predetermined position.
The transport mechanism is configured to transport the label paper to the upstream side of the paper path when the folding mechanism bends the paper path.   2. The part of the paper path downstream from the predetermined position is rotated to a position where the angle formed with the part upstream from the predetermined position is an acute angle at the predetermined position. Label peeling mechanism.   The label peeling mechanism according to claim 1 or 2, further comprising a cutting mechanism for cutting the mount from which the label has been peeled, on the downstream side of the paper path from the predetermined position. It has a take-out mechanism for taking out the label peeled off from the mount,
The label peeling mechanism according to any one of claims 1 to 3, wherein the take-out mechanism rotates the paper path downstream from the predetermined position.   5. The label peeling mechanism according to claim 4, wherein the take-out mechanism has a suction mechanism that sucks and sucks a non-adhesive surface of the label peeled from the mount. A detection mechanism for detecting an end of the label;
The label peeling mechanism according to claim 1, wherein the folding mechanism bends the paper path based on detection by the detection mechanism. A control method of a label peeling mechanism for peeling the label from a label paper having a plurality of labels and a mount on which the plurality of labels are attached at predetermined intervals,
Transporting the label paper along a paper path;
After the label paper has been conveyed by a predetermined amount downstream from a predetermined position, the paper path downstream from the predetermined position is bent with the predetermined position as a fulcrum;
And a step of conveying the label paper to the upstream side of the paper path after the paper path is bent.   A label peeling mechanism controlled by the label peeling mechanism according to any one of claims 1 to 6, or a label peeling mechanism controlled by the label peeling mechanism control method according to claim 7, and an upstream side of the paper path from the folding position. A label printing apparatus comprising: a print head that is disposed and prints on the label.

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