JP2015034050A - Under-adhering mechanism and under-adhering method for mountless labels - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an under-adhering mechanism capable of under-adhering mountless labels efficiently and continuously in a stable adhering precision to a transportation object.SOLUTION: An under-adhering mechanism comprises: a label cutting part 20 for cutting a printed label continuous body into labels of a predetermined length; a drive roller 32 made rotatable in contact with the one face of the label continuous body or a cut label L; and a holding member for holding the label continuous body or a label on a drive roller in contact with the other face of the label. Further comprised are a label let-off part 30 for letting off the label continuous body in the transfer direction of the label continuous body while clamping the label continuous body or the labels between the drive roller and the holding member; and a label conveyor 40 for sending the let-off labels to a label adhering position P2 while supporting the non-paste faces thereby to adhere the labels from below to a transported article G, wherein the rotation of the drive roller is stopped at the cutting time, and wherein the drive roller is rotated after the cutting time at such a timing that the label is fed out by the label conveyor to a label adhering position when the conveyed article reaches the label adhering position.

Description

  The present invention conveys a label having a predetermined length, that is, a so-called mountless label, obtained by cutting a continuous strip-like label without a mount (release paper) at a predetermined interval in the longitudinal direction of the continuous. The present invention relates to a lower pasting mechanism and a lower pasting method for pasting a product to be sold from below.

  In general, a label lowering mechanism includes a label printing unit that prints product information and the like on a label, and a label conveyor that conveys the printed surface of the printed label to a label application position. This label conveyor affixes the label printed by the label printing part on the product that has reached the label affixing position from below while holding its affixing surface facing upward.

  In the case of underpasting using such a label conveyor, it is required to attach a label to an appropriate position on the lower surface of a commodity conveyed by a commodity conveying conveyor or the like. Therefore, it is necessary to adjust the timing at which the label is sent to the label application position by the label conveyor in consideration of the time for the product to reach the label application position.

  For example, in Patent Document 1, the label is slid by being restricted by the claw member with respect to the traveling label conveyor, and the restriction by the claw member is released in accordance with the timing when the product is conveyed to the label attaching position. An underlay mechanism is disclosed. In Patent Document 2, the timing at which printing is started on the label continuum by the label printing unit is controlled and the printed label is issued to the label conveyor, thereby adjusting the timing at which the label is sent to the label application position. A pasting mechanism is disclosed.

  On the other hand, when a label with a mount on which a plurality of labels are temporarily attached on a mount is used, the mount after the label is peeled is discarded as garbage. Therefore, from the viewpoint of environmental problems such as global warming due to the depletion of wood resources, which are the raw materials for the mount, and the generation of carbon dioxide when incinerated, more aggressive use of mountless labels that do not require mounts has been demanded in recent years. It has been.

  In the case of pasting such a mountless label, unlike a label with a mount in which a plurality of labels cut in advance to a desired length are arranged on the mount, a strip-shaped label is used to obtain a label having a desired length. It is necessary to cut the continuous label after printing.

  However, since the underlay mechanism described in the above-mentioned Patent Documents 1 and 2 has no means for cutting the continuous label body, it cannot be used as it is for underlay of the mountless label.

  Further, for example, Patent Document 3 discloses a lower pasting mechanism provided with means for cutting a continuous paperless label continuous body into labels. The underlay mechanism is configured to temporarily stop the label conveyor and cut the label continuous body into labels with a flat blade cutter while holding the leading end of the label continuous body on the label conveyor with a holding leaf spring. Yes.

  However, in the underlaying mechanism described in the above-mentioned Patent Document 3, since the label conveyor is shared for holding the label continuous body when cutting and sticking the label, until the pasting of the previous label is completed, When the label cannot be prepared and the plurality of products are continuously pasted, work efficiency is lowered.

  Moreover, since the underlay mechanism described in Patent Document 3 temporarily stops the label conveyor at the time of cutting, a portion of the conveyor belt hung along the peripheral surface of the conveyor roller may be wrinkled during the stop. . Since this wrinkle becomes a rotation resistance of the label conveyor when the label conveyor is rotated again, it causes a delay in the time until the label conveyor reaches a predetermined rotation speed from the stopped state. Due to this delay, the actual attachment position of the label to the product is shifted from the desired position. Further, since the strength of the wrinkles changes depending on the stop time of the label conveyor, the environmental temperature, and the like, the above-mentioned delay is not constant, and the label sticking accuracy due to this delay is not constant. Therefore, there is a problem that the pasting mechanism of this conventional mountless label has an unstable pasting accuracy to a product.

Japanese Patent No. 431865 Japanese Patent No. 4313015 Japanese Patent No. 4493768

  Therefore, an object of the present invention is to provide a lower pasting mechanism and a lower pasting method capable of lower pasting a mountless label on a product with a stable pasting accuracy efficiently and continuously.

  In order to solve the above-mentioned problems, an underlaying mechanism and an underlaying method according to the present invention are configured as follows.

First, the invention according to claim 1 of the present application is
A lower pasting mechanism for pasting a label fed from a label continuous body without a mount to a transported object from below,
A label printing section for printing information on the non-glue surface of the label continuum;
A label cutting section for cutting the printed label continuous body into a label having a predetermined length;
A drive roller that is disposed on the downstream side of the label cutting unit with respect to the conveyance direction of the label continuum, is rotatable in contact with one surface of the label continuum or the cut label, and is in contact with the other surface of the label. A pressing member that presses the label continuous body or the label against the driving roller, and holds the label continuous body or the label between the driving roller and the pressing member in the conveying direction of the label continuous body. A label feeding section to feed out;
A label conveyor that feeds the label fed by the label feeding unit, supports the non-glue surface to a label pasting position, and pastes the label to the object to be transported from below;
The drive roller is stopped at a timing such that the rotation of the drive roller is stopped at the time of cutting, and the label is sent to the label applying position by the label conveyor when the conveyed object reaches the label applying position after the cutting. A control unit for rotating,
It is provided with.

  According to this invention, the label conveyor is not shared for holding the label continuous body during cutting and for attaching the label. Therefore, while the label is supported by the label conveyor, sent to the label application position and applied to the transported object, it is possible to prepare the next label by printing on the label continuous body and cutting the label continuous body. Therefore, in the case where a plurality of objects to be transported are continuously subjected to a lower bonding, the work efficiency of the lower bonding can be further improved.

  Further, according to the present invention, when the label continuous body is cut, the label feeding portion provided separately from the label conveyor holds and stops the label continuous body, so that it is not necessary to stop the label conveyor at this time. Therefore, when the label conveyor that has been stopped once is rotated again, the label conveyor may become a rotational resistance, and the label conveyor may have a wrinkle that causes a delay in the time it takes for the label conveyor to reach a predetermined rotational speed from the stopped state. There is no. Therefore, the label sticking position does not shift due to this delay, and the mountless label can be attached to the transported object with a stable sticking accuracy.

The invention according to claim 2 of the present application is the invention according to claim 1,
The label conveyor is operated at a constant speed from at least when the label is fed out from the label feeding unit to when the label is fed to the label application position.

  Further, according to the present invention, the label conveyor operates at a constant speed from when the label is fed to when the label is fed to the label application position, that is, while the label is supported and conveyed on the label conveyor. Therefore, there is no possibility that the relative position of the label with respect to the label conveyor is shifted due to fluctuations in the conveyance speed of the label conveyor during label conveyance. Therefore, the label can be accurately applied to a desired application position on the conveyed object. In particular, when the label conveyor is continuously operated at a constant speed, the label can be stably attached to the object to be conveyed with high application accuracy.

The invention according to claim 3 of the present application is
A method of attaching a label fed from a continuous label without a mount to a transported object from below,
A label printing step for printing information on a non-glue surface of the label continuum;
A drive roller disposed downstream of the label cutting unit with respect to the transport direction of the label continuum and rotatable in contact with one surface of the label continuum or the cut label, and the drive in contact with the other surface of the label A pressing member that presses the label continuous body or the label against the roller, and feeds out the label continuous body or the label in the transport direction while sandwiching the label continuous body or the label between the driving roller and the pressing member. A label holding step in which the label feeding unit holds the label continuous body by stopping the rotation of the drive roller;
A label cutting step in which the label cutting unit cuts the printed label continuous body into a label having a predetermined length;
The label feeding unit rotates the drive roller and feeds the label to the label conveyor at such a timing that the label is sent to the label applying position by the label conveyor when the conveyed object reaches the label applying position. A label feeding step;
A label sticking step in which the label conveyor feeds the label fed by the label feeding unit to the label sticking position while supporting the non-glue surface and sticks to the object to be transported from below;
It is characterized by providing.

  According to this invention, the same effect as that of the invention according to claim 1 can be obtained.

The invention according to claim 4 of the present application is the invention according to claim 3,
In the label sticking step, the label conveyor is operated at a constant speed from when the label is fed from at least the label feeding unit to when the label is fed to the label pasting position.

  According to this invention, the same effect as that of the invention according to claim 2 can be produced.

  In the underlaying mechanism according to the present invention, when the label continuous body is cut, the label feeding unit provided separately from the label conveyor holds the label continuous body and stops, so there is no need to stop the label conveyor at this time. Therefore, when the label conveyor that has been stopped once is rotated again, the label conveyor may become a rotational resistance, and the label conveyor may have a wrinkle that causes a delay in the time it takes for the label conveyor to reach a predetermined rotational speed from the stopped state. There is no. Therefore, the label sticking position does not shift due to this delay, and the mountless label can be attached to the transported object with a stable sticking accuracy.

It is a schematic front view which shows the lower bonding mechanism which concerns on one Embodiment of this invention. It is a block diagram which shows the control system of the bottom sticking mechanism of FIG. It is a flowchart which shows the control method of the control system of FIG. It is a figure explaining a series of operation | movement of the bottom sticking mechanism of FIG.

  Hereinafter, embodiments of the present invention will be described.

(1) Overall Configuration of Underlaying Mechanism As shown in FIG. 1, the underlaying mechanism 1 according to the embodiment of the present invention transports a product G using an upstream product transport conveyor C1 and a downstream product transport conveyor C2. Applies to transport system. The underlay mechanism 1 includes a label printer 10 that prints product information and the like on a strip-shaped continuous label LC without a mount (release paper), and a label cutter that cuts the printed continuous label LC into labels L of a predetermined length. 20, a label feeding mechanism 30 that feeds the cut label L to a label conveyor 40, which will be described later, at a predetermined timing, and between the upstream product transport conveyor C1 and the downstream product transport conveyor C2 by transporting the fed label L A label conveyor 40 that is attached to the product G that has been transported to the label attaching position P2 from below, and a controller 100 that controls them are provided. Hereinafter, the above-described components will be described in detail.

(1-1) Label Printer As shown in FIG. 1, the label printer 10 is a so-called mountless label roll LR in which a beltless label continuous body LC without a mount is wound in a roll shape with its glue surface facing inward. Can be attached to the unwinding roller 11. Further, in the label printer 10, the print head 12 and the platen roller 13 are disposed so as to face each other so as to sandwich the label continuous body LC unwound from the unwinding roller 11. The platen roller 13 transfers the sandwiched label continuum LC in the label issuing direction (see arrow F in the figure) with the glue surface facing upward. The print head 12 prints product information such as a product name, price, or expiration date on the printing surface (non-glue surface) of the label continuum LC transferred by the platen roller 13.

  The platen roller 13 is configured to be rotationally driven by, for example, a stepping motor and to be able to control the rotational speed thereof by a controller 100 described later, and to switch the rotational direction between forward and reverse directions. Hereinafter, the rotation direction of the platen roller 13 when the label continuous body LC is sent out in the label issuing direction F is referred to as “forward direction”, and the rotation of the platen roller 13 when the label continuous body LC is pulled in the direction opposite to the label issuing direction F. The direction is called “reverse direction”.

(1-2) Label Cutter The label cutter 20 is arranged on the downstream side of the label printer 10 with respect to the label issuing direction F as shown in FIG. The label cutter 20 includes a fixed blade 21 and a movable blade 22 each having a flat blade arranged vertically opposite to each other. The movable blade 22 is linearly driven in the vertical direction by, for example, a motor. By driving the movable blade 22 and sandwiching the label continuous body LC between the movable blade 22 and the fixed blade 21, the label continuous body LC can be cut from one end to the other end in the width direction. The label cutter 20 is not limited to the flat blade type as described above, but the label continuous body LC is gradually moved from one end to the other end in the width direction by moving the rotating round blade in the width direction of the label continuous body LC. The rotary type to cut | disconnect may be sufficient.

(1-3) Label Feeding Mechanism The label feeding mechanism 30 is disposed on the downstream side of the label cutter 20 with respect to the label issuing direction F as shown in FIG. The label feeding mechanism 30 includes a label feeding motor 31, a driving roller 32 driven by the label feeding motor 31, and a rotatable driven roller 33 that presses the label continuous body LC or label L against the driving roller 32. Is provided. The label driving mechanism 30 has the driving roller 32 in contact with the glue surface of the label continuous body LC or label L, and the driven roller 33 in contact with the non-glue surface thereof, so that the label continuous body LC or label L is driven with the driving roller 32 and the driven roller. 33. Therefore, it can be fed in the label issuing direction F by rotating the label feeding motor 31.

  The label feeding motor 31 is, for example, a stepping motor, and is configured such that its rotation speed can be controlled by a controller 100 described later. The drive roller 32 has a non-adhesive surface with excellent releasability such as silicone rubber so that the label continuous body LC or label L can be peeled off even if it contacts the glue surface of the label continuous body LC or label L. Made of material. The driven roller 33 is urged toward the driving roller 32 by a coil spring, for example. As this coil spring, one having a pressing force enough to prevent the label continuous body LC from being pulled out between the drive roller 32 and the driven roller 33 when the label continuous body LC is cut is selected. As a member that urges the driven roller 33 toward the drive roller 32, a member that can adjust the pressing force against the driven roller 33 in consideration of the thickness of the label L or the like may be used instead of the above-described coil spring. .

  Further, in order to press the label continuous body LC or label L against the driving roller 32, the main surface for pressing the label continuous body LC or label L against the driving roller 32 is flat instead of the driven roller 33 described above. You may use the formed plate-shaped pressing member.

  Further, when the label L is thin and weak, or the adhesive strength of the glue surface is very strong, the label L sandwiched between the driving roller 32 and the driven roller 33 is not naturally separated from the driving roller 32. It is conceivable that the roller is wound around the peripheral surface of the driving roller 32. In order to prevent this, for example, an air blowing device that blows air between the leading end portion of the label continuous body LC or label L fed to the downstream side of the label feeding mechanism 30 and the driving roller 32 is provided as necessary. Also good.

(1-4) Label conveyor The label conveyor 40 is provided in the vicinity of the label feeding mechanism 30 and the downstream side and the upper side in the conveyance direction of the product G with respect to the conveyor roller 41, and the label application position And a conveyor roller 42 provided in the vicinity of P2. The drive source of the conveyor rollers 41 and 42 is, for example, a stepping motor, and is configured such that its rotation speed can be controlled by a controller 100 described later. A plurality of endless label transport belts 43 are wound around the conveyor rollers 41 and 42 in the longitudinal direction of the conveyor rollers 41 and 42. These label transport belts 43 include a label transport surface 43a that supports and transports the non-glue surface of the label L on its upper surface. Below the label conveying belt 43, there is provided a blower 44 for sending air below (see the arrow in FIG. 1). The label conveyor 40 is configured to apply a negative pressure to the label L supported on the label conveying surface 43 a by the blower 44 and suck and hold the label L on the label conveying belt 43.

  It should be noted that in order to more reliably lower the label L on the product G having an uneven lower surface, air is applied to the printing surface of the label L attached to the lower surface of the product G by the label conveyor 40 in the vicinity of the label application position P2. You may provide the air spraying device which sprays from below.

  Further, when a large amount of labels L are issued, the glue on the end face of the label L accumulates on the label conveying surface 43a, and the label L cannot be peeled off by the conveyor roller 42 provided in the vicinity of the label attaching position P2. There is a case where the label L cannot be pasted on the product G because it is wound around the roller 42. In order to prevent such winding, the peelability of the label L may be improved by reducing the diameter of the conveyor roller 42. According to this, since the gap between the label conveyor 40 and the product transport conveyors C1 and C2 can be narrowed, the transfer of the product G between the conveyors becomes smooth, and the label L sticking accuracy to the product G can be improved.

(1-5) Product Detector As shown in FIG. 1, a product detector 50 is provided at a product detection position P1 in the vicinity of the upstream product transport conveyor C1. The product detector 50 is an optical sensor including a light emitting unit and a light receiving unit, and detects the presence or absence of the product G at the product detection position P1. The commodity detector 50 transmits a signal related to the detection result to the controller 100 in real time. Note that the product detector 50 is not limited to the above-described optical sensor, and is, for example, an imaging unit that photographs the product G from above the upstream product transport conveyor C1 and transmits a signal related to the captured image information to the controller 100. There may be.

(1-6) Controller As shown in FIG. 2, the controller 100 includes a storage unit 101 including a RAM, a ROM, and the like that store various types of information necessary for the operation of the underlay mechanism 1. The controller 100 includes a label printer 10 (a motor for driving the print head 12 and the platen roller 13), a label cutter 20 (a motor for driving the movable blade 22), a label feeding mechanism 30 (a label feeding motor 31), and a label conveyor 40. A control unit 102 including a CPU or the like that controls the (motors for driving the conveyor rollers 41 and 42) is provided.

  The storage unit 101 stores information including, for example, a product master, a tray master, a label master, and the like as information necessary for the operation of the underlay mechanism 1. The controller 100 may be configured so that an operation display unit (not shown) can be connected. According to this, the operation display unit can be connected to the controller 100 and the operator can operate the operation display unit to add or edit information stored in the storage unit 101.

  A signal from the product detector 50 is input to the control unit 102. In addition, the control unit 102 outputs a control signal to the label printer 10, the label cutter 20, the label feeding mechanism 30, and the label conveyor 40 based on information stored in the storage unit 101 or a signal from the product detector 50. Note that the control unit 102 may be configured to be able to input signals from various devices other than the commodity detector 50 described above, and to output control signals based on various input signals. For example, in the case where an image pickup unit for shooting the product G from above the upstream product transfer conveyor C1 is provided, a signal relating to image information transmitted from the image pickup unit can be input, and binarization or the like can be performed based on the image information. Image processing may be performed to calculate the position of the product G, and a control signal may be output based on the position.

(2) Operation of Underlaying Mechanism A series of operations of the underlaying mechanism 1 will be described with reference to FIGS. 3 and 4.

  First, the product detector 50 detects the presence or absence of the product G at the product detection position P1, and determines whether the product G has passed through the product detection position P1 based on an input signal from the product detector 50 (FIG. 3). Step S1). If it is determined that the product G has passed, a timer is started (step S2 in FIG. 3).

  Next, as shown in FIG. 4A, the leading end of the label continuum LC is sent out in the label issuing direction F, and the label printer 10 starts printing predetermined product information on the printing surface of the label continuum LC ( Step S3 in FIG. The product information printed at this time is information regarding the product G to which the label L is attached, and is set in advance by the controller 100.

  Next, the drive roller 32 of the label feeding mechanism 30 is rotated in synchronization with the platen roller 13 of the label printer 10 (step S4 in FIG. 3). By the rotation of the platen roller 13, the label continuum LC is issued toward the label feeding mechanism 30 through the space between the fixed blade 21 and the movable blade 22 while being printed by the label printer 10. Eventually, when the leading end of the label continuum LC is sandwiched between the driving roller 32 and the driven roller 33 of the label feeding mechanism 30, it is further fed in the label issuing direction F by the driving roller 32 that starts rotating in synchronization with the platen roller 13. It is. At this time, the driving roller 32 is set to the same speed or a slightly lower peripheral speed (for example, 198 mm / second) than the peripheral speed (for example, 200 mm / second) of the platen roller 13. Thanks to this peripheral speed difference, the portion of the label continuum LC that is being printed by the label printer 10 is not pulled by excessive tension by the drive roller 32, and printing defects such as blurring, deformation, or misalignment of characters occur. There is no fear. The timing for starting the rotation of the drive roller 32 may be before the leading end of the label continuum LC reaches the label feeding mechanism 30, and may be simultaneously with the start of printing (step S3 in FIG. 3), for example.

  Next, it is determined whether or not the label printer 10 has finished printing on the label continuum LC and the label continuum LC has been issued to a predetermined position (step S5 in FIG. 3). Here, the “predetermined position” refers to a line corresponding to the end of the printed label L in the label continuum LC, in other words, a boundary line between the already printed label L and the next printed label L. The position which reaches | attains the blade surface of the fixed blade 21 and the movable blade 22 is meant.

  When it is determined that the printing (issuance) has been completed, the rotation of the driving roller 32 and the platen roller 13 is stopped and the label continuum LC is sandwiched between the driving roller 32 and the driven roller 33 as shown in FIG. (Step S6 in FIG. 3). At this time, the label continuous body LC is held by the label printer 10 and the label feeding mechanism 30 on both sides of the portion where the label cutter 20 cuts in the longitudinal direction.

  Next, as shown in FIG. 4C, the movable blade 22 is driven upward, and the label L having a predetermined length is cut by sandwiching the label continuous body LC between the fixed blade 21 and the movable blade 22. Is obtained (step S7 in FIG. 3). At this time, the cut label L is held between the driving roller 32 and the driven roller 33.

  Next, it is determined whether or not a predetermined time has elapsed since the timer was started (step S8 in FIG. 3). This predetermined time is an initial parameter set in advance before the underlaying operation. Specifically, the label is determined after the passage of the product G is determined (step S1 in FIG. 3) so that the label L is sent to the label application position P2 by the label conveyor 40 when the product G reaches the label application position P2. The waiting time until the label L is fed out by the feeding mechanism 30 (step S9 to be described later) is determined while adjusting with an actual machine, and the determined waiting time may be set in advance as the predetermined time described above. The waiting time may be obtained by calculation in consideration of the label feeding speed of the label feeding mechanism 30, the transport speed of the product G on the upstream product transport conveyor C1, the sticking position of the label L on the product G, and the like.

  If the timer determines that the predetermined time has elapsed, as shown in FIG. 4D, the label L is driven by the label conveyor 40 to the label application position P2 when the product G reaches the label application position P2. The roller 32 is rotated to feed the label L to the label conveyor 40 (step S9 in FIG. 3). The label feeding speed at which the label L is fed by the label feeding mechanism 30 is set to a predetermined speed (for example, 300 mm / second) that is larger than the label printing issue speed by the label printer 10 and smaller than the label transport speed by the label conveyor 40. .

  In parallel with the feeding of the label L, the platen roller 13 of the label printer 10 is rotated in the reverse direction, and the label continuous body LC is returned to the position where printing is started (step S3 in FIG. 3). The rotation is stopped and the label continuum LC is made to wait until the next label L is printed. Note that the rotation of the platen roller 13 in the reverse direction may be performed in step S10 described later.

  Next, the label conveyor 40 conveys the fed label L to the label affixing position P2 with the non-glue surface adsorbed on the label conveying surface 43a of the label conveyor 40, and affixes it to the product G from below. (Step S10 in FIG. 3). The label conveyor 40 is continuously operated at a constant label conveyance speed (for example, 350 mm / second) substantially the same as the conveyance speed of the commodity G by the upstream-side commodity conveyance conveyor C1, and at this constant label conveyance speed during the label conveyance. drive. The label conveyor 40 may be operated at a constant speed until at least the label L is fed from the label feeding mechanism 30 until the label L is fed to the label applying position P2. For example, in order to save energy, the label conveyor 40 may be operated at a speed lower than the above-described label conveyance speed until the label L is sent out and the next label L is fed out.

(3) Features of Underlaying Mechanism and Underlaying Method According to the underlaying mechanism 1, the label conveyor 40 is not shared for holding the label continuous body LC at the time of cutting and for attaching the label L. Therefore, while the label L is supported by the label conveyor 40 and sent to the label sticking position P2 and attached to the product G, the label continuous body LC is printed and the label continuous body LC is cut to prepare the next label L. Can do. Therefore, in the case where the plurality of products G are continuously pasted, the work efficiency of the bottom pasting can be further improved.

  In addition, when the label continuous body LC is cut, the label feeding mechanism 30 provided separately from the label conveyor 40 holds and stops the label continuous body LC, so that it is not necessary to stop the label conveyor 40 at this time. For this reason, when the label conveyor 40 that has been stopped is rotated again, the label conveyor becomes a rotational resistance of the label conveyor 40 and causes a delay in the time it takes for the label conveyor 40 to reach a predetermined rotational speed from the stopped state. There is no risk of reaching 40. Accordingly, the label L sticking position does not shift due to this delay, and the mountless label can be attached to the product G with a stable sticking accuracy.

  Further, according to the present lower pasting mechanism 1, the label conveyor is operated from when the label L is fed out until the label L is fed to the label pasting position P2, that is, while the label L is supported and transported on the label conveyor 40. 40 operates at a constant speed. Therefore, there is no possibility that the relative position of the label L with respect to the label conveyor 40 is shifted due to the change in the conveyance speed of the label conveyor 40 during the conveyance of the label L. Therefore, the label L can be accurately applied to a desired application position on the product G.

  Further, according to the present lower pasting mechanism 1, since the label continuum LC is already sent out while being sandwiched between the driving roller 32 and the driven roller 33 during printing, the driving roller 32 rotates in synchronization with the end of printing. The label continuum LC is held between the stopped driving roller 32 and the driven roller 33 only by stopping. Therefore, it is conceivable to employ a label holding mechanism that sandwiches the label continuum LC for the first time after printing is completed for cutting the label continuum LC. In such a case, the label continuum LC is sandwiched. The time required for the operation can be saved if the underlaying mechanism 1 is used.

  Furthermore, in the case of this embodiment, since the label conveyor 40 is continuously operated at a constant speed, the label L can be applied to the product G with a particularly high and high accuracy.

  It should be noted that the present invention is not limited to the illustrated embodiment, and it goes without saying that various improvements and design changes can be made without departing from the gist of the present invention.

  For example, the label driving mechanism 30 is configured by changing the arrangement of the driving roller 32 and the driven roller 33 so that the driving roller 32 is in contact with the non-glue surface of the label continuum LC or label L and the driven roller 33 is in contact with the glue surface. You may do it.

  Moreover, although the lower pasting mechanism 1 which concerns on this embodiment was applied to the conveyance system using goods conveyance conveyors C1 and C2, it is applicable also to another conveyance system. For example, the present invention may be applied to a transport system that uses a transport robot to perform palletizing for aligning the product G on a pallet, loading the product G onto a transporter such as a shipping truck, and the like. Moreover, the lower sticking mechanism 1 in this embodiment can also be used as a partial structure of a label sticking apparatus with the upper sticking mechanism which sticks a label to the goods G from the top.

  As described above, according to the present invention, since a mountless label can be efficiently and continuously attached to a transported object with a stable application accuracy, a label applicator provided with this type of mountless label underapplying mechanism. There is a possibility of being suitably used in the manufacturing industry field.

1 Underlay mechanism 10 Label printer (label printing part)
20 Label cutter (label cutting part)
30 Label feeding mechanism (label feeding section)
32 Drive roller 34 Driven roller (pressing member)
40 Label conveyor 100 Controller (control unit)
G Product (conveyed object)
LC label continuum L label P2 Label affixing position

Claims (4)

A lower pasting mechanism for pasting a label fed from a label continuous body without a mount to a transported object from below,
A label printing section for printing information on the non-glue surface of the label continuum;
A label cutting section for cutting the printed label continuous body into a label having a predetermined length;
A drive roller that is disposed on the downstream side of the label cutting unit with respect to the conveyance direction of the label continuum, is rotatable in contact with one surface of the label continuum or the cut label, and is in contact with the other surface of the label. A pressing member that presses the label continuous body or the label against the driving roller, and holds the label continuous body or the label between the driving roller and the pressing member in the conveying direction of the label continuous body. A label feeding section to feed out;
A label conveyor that feeds the label fed by the label feeding unit, supports the non-glue surface to a label pasting position, and pastes the label to the object to be transported from below;
The drive roller is stopped at a timing such that the rotation of the drive roller is stopped at the time of cutting, and the label is sent to the label applying position by the label conveyor when the conveyed object reaches the label applying position after the cutting. A control unit for rotating,
An underlaying mechanism characterized by comprising: 2. The underlaying mechanism according to claim 1, wherein the label conveyor is operated at a constant speed from at least when the label is fed from the label feeding unit to when the label is fed to the label applying position. A method of attaching a label fed from a continuous label without a mount to a transported object from below,
A label printing step for printing information on a non-glue surface of the label continuum;
A drive roller disposed downstream of the label cutting unit with respect to the transport direction of the label continuum and rotatable in contact with one surface of the label continuum or the cut label, and the drive in contact with the other surface of the label A pressing member that presses the label continuous body or the label against the roller, and feeds out the label continuous body or the label in the transport direction while sandwiching the label continuous body or the label between the driving roller and the pressing member. A label holding step in which the label feeding unit holds the label continuous body by stopping the rotation of the drive roller;
A label cutting step in which the label cutting unit cuts the printed label continuous body into a label having a predetermined length;
The label feeding unit rotates the drive roller and feeds the label to the label conveyor at such a timing that the label is sent to the label applying position by the label conveyor when the conveyed object reaches the label applying position. A label feeding step;
A label sticking step in which the label conveyor feeds the label fed by the label feeding unit to the label sticking position while supporting the non-glue surface and sticks to the object to be transported from below;
An underlaying method comprising: 4. The label sticking step, wherein the label conveyor is operated at a constant speed from when the label is fed at least from the label feeding part to when the label is fed to the label sticking position. How to paste under

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