Label attaching device

Abstract

The present invention relates to a label attaching device capable of stably peeling and attaching a label (L) attached to a label sheet (LS) regardless of the size of the label (L). The label attaching device comprises: a label supply unit (200) including a peeling table (200) configured to be movable forward and backward to peel the label (L) from the label sheet (S); and a vacuum suction plate (330) coupled to a piston rod (321) of the vertical movement cylinder (320) and suctioning the label (L) peeled off from the peeling table (220), wherein the label (L) positioned on the peeling table (220) is configured to be peeled from a rear sheet (S) by moving the peeling table (220) backward by means of the pulling force of the rear sheet (S) while being absorbed by the vacuum suction plate (320).

Description

labeling device

[0001] The present invention relates to a label attachment device, and more particularly, to a label attachment device that stably peels and attaches a label regardless of the size of the label attached to a label sheet.

[0002] Most products manufactured in various technical fields have product labels that contain various information such as the product's specifications, manufacturer, or manufacturing date.

[0003] Product labels can be attached manually by people, but with the increase in mass-produced products such as mobile phones and batteries, there has been a demand for label attachment devices that can not only increase productivity but also ensure consistent label positioning and alignment and reduce mistakes and errors.

[0004] As an example of this, there is an automatic label separation and attachment device (hereinafter referred to as “prior art”) disclosed in Patent Publication No. 10-0291445.

[0005] The conventional automatic label separation and attachment device, as shown in Fig. 1, is configured to peel a label (10) from a paper (16) in a label feeder (11), feed it to a set position on a label plate (21), and automatically attach the label (10) fed onto the label plate (21) to a television set (13) by absorbing the label (10) with an absorbing head (15a) provided at the end of a rotary cylinder (15).

[0006] The conventional automatic label separation and attachment device has the advantage of being able to automatically attach labels, which can significantly increase the productivity of the assembly line.

[0007] However, since the conventional technology is configured to separate the label (10) attached to the original paper (16) while changing the direction of the original paper in the label feeder (11) and feed it onto the label plate (21), the label (10) may not be peeled off depending on the adhesive strength, and in particular, a problem may arise in that labels of small size, such as barcodes, are not peeled off.

[0008] The present invention aims to provide a label attachment device that can stably and quickly perform the task of peeling a label and attaching it to a correct position regardless of the size of the label in order to solve the problems of the prior art as described above.

[0009] According to one embodiment of the present invention for achieving the above object, a label attachment device (1) comprises: a base plate (110); a label supply unit (200); and a label attachment unit (300) configured to move a label (L) supplied from the label supply unit (200) to an attachment position by suction. At this time, the label supply unit (200) comprises: a label supply reel (210) on which a label sheet (LS) having a plurality of labels (L) sequentially attached to an upper surface of a back sheet (S) is wound; a drive roller (240) for transporting the label sheet (LS); and a peeling table (200) configured to be able to move forward and backward to peel the label (L) from the label sheet (S); and the label attachment unit (300) comprises: a horizontal movement cylinder (310); a vertical movement cylinder (320) coupled to a piston rod (311) of the horizontal movement cylinder (310); And it includes a vacuum suction plate (330) that is coupled to the piston rod (321) of the vertical movement cylinder (320) and absorbs a label (L) that is peeled off from the peeling table (220); and the label (L) of the label sheet (LS) positioned on the peeling table (220) is configured to be peeled off from the rear sheet (S) by moving the peeling table (220) backward while being absorbed by the vacuum suction plate (320).

[0010] In addition, the peeling table (220) is connected to a table driving cylinder (230), and the peeling table (220) is configured to move forward by the pneumatic pressure of the table driving cylinder (230) and to move backward by the force of pulling the rear sheet (S) by the driving of the driving roller (240).

[0011] Additionally, the table drive cylinder (230) may be additionally equipped with a reverse detection sensor (234) that detects the reverse movement of the peeling table (220).

[0012] In addition, a support roller (270) configured to selectively contact the drive roller (240) and the rear sheet (S) is additionally provided, and when the peeling table (220) is advanced, the support roller (270) is maintained in a state separated from the drive roller (240), and the rear sheet (S) between the drive roller (240) and the support roller (270) is configured in a state in which the tension is released.

[0013] In addition, the support roller (270) is coupled to a support roller holder (280), and the support roller holder (280) includes a rotary link (281) on which the support roller (270) is installed, and the rotary link (281) is connected to a link driving means, so that the support roller (270) can be brought into contact with or separated from the driving roller (240) depending on the operation of the link driving means.

[0014] Additionally, a rotatable rotary cylinder (340) may be additionally provided between the vertical movement cylinder (320) and the vacuum suction plate (330).

[0015] Lastly, a label detection sensor (222) may be additionally installed on the peeling table (220).

[0016] The label attachment device (1) according to the present invention is configured to lower the vacuum suction plate (330) to adsorb the label (L) to be peeled when peeling the label (L) from the back sheet (S) of the label sheet (LS), and then move the peeling table (220) backward in that state to peel the label (L), so that it has the advantage of being able to significantly reduce the peeling defect rate regardless of the length of the label (L).

[0017] In addition, the label attachment device (1) according to the present invention is configured so that when the peeling table (220) is moved backwards to peel the label (L), the driving roller (240) pulls the rear sheet (S) so that the peeling table (220) is pushed backwards until the reverse detection sensor (234) detects it, thereby enabling much more stable speed control than when operating using air pressure, and stably maintaining the tension of the rear sheet (S), thereby significantly reducing the defect rate when peeling the label.

[0018] In addition, the label attachment device (1) according to the present invention is configured to operate through a step of pneumatically advancing the peeling table (220) while the support roller (270) is separated from the drive roller (240), that is, while the tension on the back sheet (S) is released, a step of bringing the support roller (270) into contact with the drive roller (240) and the back sheet (S) through the drive roller (240), and a step of operating the drive roller (240) to transport the back sheet (S), thereby stably controlling the peeling standby state of the next label (S), and reducing the impact applied to the device and the label sheet (LS), thereby significantly improving durability and productivity.

[0019] In addition, the label attachment device (1) according to the present invention has a simple structure in which the support roller holder (280) includes a rotation link (281) on which the support roller (270) is installed, so that it can be miniaturized and has the advantage of reducing manufacturing costs.

[0020] In addition, the label attachment device (1) according to the present invention has a rotary cylinder (340) provided between the vertical movement cylinder (320) and the vacuum suction plate (330), so that the label (L) can be attached at various angles regardless of the direction in which the product to which the label (L) is to be attached is placed.

[0021] Fig. 1. Label attachment device shown in the prior art.

[0022] Figure 2. Perspective view of a label attachment device according to the present invention.

[0023] Figure 3. Standby state diagram of the label attachment device according to the present invention.

[0024] Figure 4. A state diagram showing a label being absorbed by a vacuum suction plate in the present invention.

[0025] Figure 5. Diagram showing the label peeling state through the peeling table moving backward in the present invention.

[0026] Figure 6. A state diagram showing the vacuum suction plate elevation and separation table advancement preparation in the present invention.

[0027] (a) Front view (b) Back view

[0028] Fig. 7. Diagram showing the forward state of the peeling table in the present invention.

[0029] (a) Front view (b) Back view

[0030] Fig. 8. A state diagram showing the support roller being moved in the direction of the drive roller in the present invention.

[0031] (a) Front view (b) Back view

[0032] Figure 9. A diagram of the label attachment and next label peeling waiting operation in the present invention.

[0033] The present invention will be described below with reference to the attached drawings. However, the present invention may be implemented in various different forms and is therefore not limited to the embodiments described herein.

[0034] Throughout the specification, when a part is said to be "connected (connected, contacted, joined)" to another part, this includes not only cases where it is "directly connected," but also cases where it is "indirectly connected" with another part in between. Furthermore, when a part is said to "include" a component, this does not mean that it excludes other components, but rather that it may include other components, unless otherwise specifically stated.

[0035] The terminology used in this specification is for the purpose of describing specific embodiments only and is not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

[0036] FIG. 2 is a perspective view of a label attachment device (1) according to the present invention, FIG. 3 is a standby state diagram of the label attachment device (1), FIG. 4 is a state diagram in which a label (L) is absorbed by a vacuum suction plate (330), FIG. 5 is a state diagram in which a label (L) is peeled by moving the peeling table (220) backward, FIG. 6 is a state diagram in which the vacuum suction plate (330) is raised and the peeling table (220) is prepared to move forward again, FIG. 7 is a state diagram in which the peeling table (220) is moved forward again, FIG. 8 is a state diagram in which the support roller (270) is moved in the direction of the drive roller (240), and FIG. 9 is an operation diagram in which a label (L) is attached and the next label (L) is peeled.

[0037] The label attachment device (1) according to the present invention is a device that automates the task of peeling a label (L) from a label sheet (LS) in which a plurality of labels (L) are attached in series on a back sheet (S) formed like a belt and attaching the peeled label (L) to a product (not shown) to be attached, and as shown in FIG. 2, includes a base frame (100); a label supply unit (200); and a label attachment unit (300).

[0038] In Fig. 2, only the upper part of the base frame (100) is shown, and a recovery reel (not shown) for recovering the back sheet (S) from which the label (L) has been peeled off may be installed on the base frame (100).

[0039] As shown in Fig. 2, the base frame (100) includes a base plate (110).

[0040] The above base plate (110) may have a communication hole (111) formed through which a rear sheet (S) or the like can pass, and a product holder (112) may be formed as needed.

[0041] The label supply unit (200) is provided on the upper portion of the base plate (110) as illustrated in FIGS. 2 to 9 and includes a label supply reel (210) on which a label sheet (LS) to be supplied is wound; a drive roller (240) for transporting the label sheet (LS); a peeling table (220) configured to be moved forward and backward to peel the label (L) from the label sheet (S); a table drive cylinder (230) connected to the peeling table (220); a support roller (270); and a support roller holder (280).

[0042] The above peeling table (220) is formed between the label supply reel (210) and the driving roller (240) as shown in FIG. 2.

[0043] That is, the label sheet (LS) of the label supply reel (210) is transferred to the peeling table (220), and the label (L) is peeled off on the peeling table (220), and the remaining back sheet (S) is connected to the drive roller (240), and the label sheet (LS) of the label supply reel (210) can be transferred as the back sheet (S) in contact with the back sheet moves by the driving of the drive roller (240).

[0044] At this time, as shown in FIG. 2, one or more first idle rollers (260) may be additionally installed between the label supply reel (210) and the peeling table (220) to control the movement direction of the label sheet (LS), and one or more second idle rollers (261) may be additionally installed between the peeling table (220) and the driving roller (240) to control the movement direction of the rear sheet (S).

[0045] The above peeling plate (220) is connected to the table driving cylinder (230) via a piston rod (231).

[0046] The above peeling plate (220) is formed so that the label sheet (LS) changes direction at the peeling edge (221) corresponding to the free end.

[0047] The label (L) is peeled off at the peeling edge (221) due to the change in direction of the label sheet (LS).

[0048] A label detection sensor (222) for detecting a label (L) positioned on the peeling plate (220) may be additionally installed on the free end side of the peeling plate (220), as shown in FIG. 3.

[0049] The above table drive cylinder (230) is provided with a forward speed control unit (232) and a backward speed control unit (233), and may additionally be provided with a backward detection sensor (234) for detecting backward movement of the peeling table (220) and piston rod (231).

[0050] In the present invention, when the piston rod (231) connected to the peeling table (220) is protruded, that is, when the peeling table (220) is advanced, it operates by means of air pressure supplied through the air pipe (370) connected to the forward speed control device (232) as shown in FIG. 6.

[0051] On the other hand, the reverse speed control part (233) of the table drive cylinder (230) is not connected to a separate air pipe. That is, when the piston rod (231) connected to the peeling table (220) is moved backward, it is not operated by air pressure, and when the air pressure applied to the forward speed control part (232) is removed and force is applied in the reverse direction to the peeling table (220), air is sucked into the reverse speed control part (233) of the table drive cylinder (230), and the peeling table (220) and the piston rod (231) connected thereto are configured to move backward. At this time, the force applied to the peeling table (220) in the reverse direction is the force applied to the peeling table (220) as the rear sheet (S) is pulled by operating the driving roller (240).

[0052] The operation of the table drive cylinder (230) can be implemented by controlling the piston rod (231) to move with air pressure when moving forward and to move without air pressure when moving backward.

[0053] The drive roller (240) can be driven by a driving means such as a drive motor (250) as shown in FIG. 2.

[0054] The above support roller (270) is in contact with the above drive roller (240) through the rear sheet (S).

[0055] Through this configuration, the driving roller (240) can contact the rear sheet (S) and pressurize the rear sheet (S), and move the rear sheet and the label sheet (LS) while driving the driving roller (240).

[0056] In the present invention, the support roller (270) is configured to selectively contact and separate from the drive roller (240) for more stable and rapid label (L) peeling and attachment.

[0057] The above support roller (270) is installed in a support roller holder (280) configured to enable implementation as shown in FIG. 2.

[0058] The above support roller holder (280) includes a rotary link (281) on which the support roller (270) is installed, as shown in FIGS. 2 and 6.

[0059] The above-described rotation link (281) may be fixed to a link fixing member (282) fixed to a base frame (100) or the like, as illustrated in FIGS. 2 and 6. However, the present invention is not limited thereto, and it is sufficient if the rotation link (281) has a structure capable of rotation, and depending on the structure of the device, the rotation link (281) may be directly fixed to the base ferrite (100).

[0060] The above-mentioned rotary link (281) is configured to be rotatable by a driving means such as a link driving cylinder (290) as shown in FIGS. 6 to 8 to control the position of the support roller (270).

[0061] In the drawing of the present invention, the rotary link (281) is shown as being connected to the piston rod (291) of the link driving cylinder (290) and rotating, but it is not limited thereto, and any driving means capable of rotating the rotary link (281) is sufficient.

[0062] The label attachment unit (300) has a function of assisting stable peeling of the label (L) and is configured to move the peeled label (L) to a position to be attached, such as a product, and to attach the label (L), and includes a horizontal movement cylinder (310); a vertical movement cylinder (320) coupled to a piston rod (311) of the horizontal movement cylinder (310); a vacuum suction plate (330) coupled to the piston rod (321) of the vertical movement cylinder (320) and for absorbing the label (L) peeled from the peeling table (220); and a pneumatic valve (360).

[0063] The above horizontal movement cylinder (310) is connected to the vertical movement cylinder (320) via a piston rod (311) as shown in FIG. 2 and FIG. 9.

[0064] The above horizontal movement cylinder (310) operates by pneumatic pressure and is configured to move the vertical movement cylinder (320) forward and backward in the horizontal direction.

[0065] The above vertical movement cylinder (320) is connected to the vacuum suction plate (330) via a piston rod (321) as shown in FIG. 2 and FIG. 9.

[0066] The above vertical movement cylinder (320) operates pneumatically and is configured to vertically raise and lower the vacuum suction plate (330).

[0067] The above vacuum suction plate (330) is configured to vacuum-suction the label (L) using air pressure, and can move horizontally and vertically through the operation of the horizontal movement cylinder (310) and the vertical movement cylinder (320).

[0068] As shown in Fig. 2, a rotary cylinder (340) may be additionally installed between the vertical movement cylinder (320) and the vacuum suction plate (330) so that the vacuum suction plate (330) can rotate at various angles. Through this configuration, it is possible to attach the label (L) at various angles regardless of the fixing direction of the product (not shown) to which the label (L) is to be attached.

[0069] The pneumatic valve (360) is configured so that the pneumatically operated components of the present invention can operate under the control of a control unit (not shown), and can be connected to each component via an air pipe (not shown) to enable normal operation of each component.

[0070] Meanwhile, it is preferable that the control unit (not shown) be configured to control the driving roller (240) and the position of the support roller (270).

[0071] In addition, as illustrated in FIGS. 2 to 9, some components of the present invention, including the pneumatic valve (360), may additionally be provided with a housing (350) so as to be positioned inside the housing (350). In this case, the housing (350) may be provided with a stopper (351) capable of restricting the movement of the vacuum suction plate (330).

[0072] The operation of the label attachment device (1) of the present invention having such a configuration is examined step by step with reference to FIGS. 3 to 9 as follows.

[0073] First, the first step is the label (L) peeling waiting step as shown in Fig. 3.

[0074] The label (L) peeling standby state is a state in which the driving roller (240) operates and the label (L) moves to a preset position on the peeling table (220), which is detected by the label detection sensor (222). At this time, the driving roller (240) and the support roller (270) are in contact with each other through the back sheet (S), and the vacuum suction plate (230) is positioned above the label (L) to be peeled on the peeling table (220).

[0075] The second step is a step in which the vertical cylinder (320) is lowered as shown in Fig. 4 to adsorb the label (L) to be peeled on the peeling table (220) using the vacuum suction plate (330).

[0076] The third step is to peel the label (L) by moving the peeling table (220) backward as shown in Fig. 5.

[0077] In the present invention, when the peeling table (220) moves backward, the driving roller (240) is driven without a separate air supply, and the driving roller (240) pulls the rear sheet (S) so that the peeling table (220) is pushed and moves backward until the reverse detection sensor (234) detects it.

[0078] By adjusting the position of the reverse detection sensor (234) according to the label (L) size, label peeling of various sizes can be efficiently controlled.

[0079] At this time, by controlling the amount of air sucked into the reverse speed control device (233), the reverse speed of the peeling table (220) can be controlled, and the tension of the rear sheet (S) can be maintained when peeling the label (L).

[0080] Even when the peeling table (220) is moved backward, if there is a difference between the speed at which the driving roller (240) pulls the rear sheet (S) and the backward speed of the piston rod (231) of the table driving cylinder (230) when operated by pneumatic pressure using a solenoid valve, there is a problem that the tension of the rear sheet (S) is not maintained, which increases the possibility of poor label (L) peeling.

[0081] In order to solve this problem, the present invention applies a technology that utilizes a force that pulls the rear sheet (S) according to the operation of the driving roller (240) when moving the peeling table (220) backward.

[0082] In addition, the present invention peels the label (L) by moving the peeling table (220) backward while the vacuum suction plate (230) is adsorbing the label (L) to be peeled, so that not only can the peeling defect rate be significantly reduced, but also labels (L) of small size such as barcodes can be stably peeled.

[0083] The fourth step is to raise the vacuum suction plate (330) to which the peeled label (L) is attached as shown in Fig. 6 and separate the support roller (270) from the drive roller (270).

[0084] The elevation of the vacuum suction plate (330) with the peeled label (L) attached to the bottom is a preparatory step for attaching the label (L) to a product (not shown).

[0085] At this stage, the peeling table (220) is in a backward state, and the step of separating the support roller (270) from the drive roller (240) is a step of preparing to move the peeling table (220) forward again more stably and quickly.

[0086] The fifth step is to advance the peeling table (220) again as shown in Fig. 7.

[0087] At this stage, since the support roller (270) and the drive roller (240) are separated from each other, the tension of the rear sheet (S) between them can be released so that there is no tension or the tension can be minimized.

[0088] Accordingly, even if the peeling table (220) is rapidly moved forward by air pressure, the force applied to the back sheet (S) is non-existent or minimal, so even if the peeling table (220) comes into contact with the back sheet (S) as it moves forward, the back sheet (S) moves in the opposite direction as shown in FIG. 7, there is almost no movement of the label supply reel (210), and the next label (L) can be prevented from being peeled to an unspecified position.

[0089] The sixth step is a step of bringing the support roller (270) into contact with the drive roller (240) again through the rear sheet (S), as shown in Fig. 8.

[0090] This step prepares the rear sheet (S) to be pulled by driving the drive roller (240) again through this step.

[0091] At this time, the peeling table (220) is moved forward by air pressure from the table drive cylinder (230) and then controlled to maintain the air pressure so that the drive roller (240) is driven, so that the peeling table (220) does not move backward, but the label sheet (LS) moves.

[0092] The last seventh step is a step of operating the drive roller (240) until the label (L) moves to a set position on the peeling plate (220) as shown in Fig. 9, preparing to peel the next label (L), and operating the horizontal movement cylinder (310) and the vertical movement cylinder (320) to move the vacuum suction plate (330) with the label (L) absorbed thereto to the product (not shown) to attach the label (L).

[0093] After the seventh step, when the vacuum suction plate (330) is moved to the initial position, the first step, label (L) peeling waiting step, returns.

[0094] By executing the above steps in sequence, labels can be attached more reliably and quickly.

[0095] The scope of the present invention is indicated by the claims described below, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

[0096] [Explanation of symbols]

[0097] 1: Label attachment device, 100: Base frame, 110: Base plate, 111: Communication port, 112: Product holder, 200: Label supply unit, 210: Label supply roller, 220: Peeling table, 221: Peeling edge, 222: Label detection sensor, 230: Table drive cylinder, 231: Piston rod, 232: Forward speed control unit, 233: Reverse speed control unit, 234: Reverse detection sensor, 240: Drive roller, 250: Drive motor, 260: First idle roller, 261: Second idle roller, 270: Support roller, 280: Support roller holder, 281: Rotating link, 282: Link fixing member, 290: Link drive cylinder, 291: Piston rod, 300: Label attachment unit, 310: Cylinder for horizontal movement, 311: piston rod, 320: cylinder for vertical movement, 321: piston rod, 330: vacuum suction plate, 340: rotary cylinder, 350: housing, 351: stopper, 360: pneumatic valve, 370: air supply pipe, L: label, LS: label sheet, S: back sheet

[0098] The present invention relates to a label attachment device and is industrially applicable.

Claims

1. Base plate (110); Label supply unit (200); and It includes a label attachment unit (300) configured to be able to move the label (L) supplied from the label supply unit (200) to an attachment position by suction; The above label supply unit (200) is A label supply reel (210) having a label sheet (LS) wound around which a plurality of labels (L) are sequentially attached to the upper surface of the back sheet (S); A driving roller (240) for transporting the above label sheet (LS); and It includes a peeling table (200) configured to be moved forward and backward to peel the label (L) from the label sheet (S); The above label attachment part (300) is Cylinder for horizontal movement (310); A vertical movement cylinder (320) coupled to the piston rod (311) of the horizontal movement cylinder (310); and It includes a vacuum suction plate (330) that is coupled to the piston rod (321) of the vertical movement cylinder (320) and absorbs the label (L) that is peeled from the peeling table (220); A label attachment device characterized in that the label (L) of the label sheet (LS) positioned on the above peeling table (220) is configured to be peeled from the rear sheet (S) by moving the peeling table (220) backward while being absorbed by the vacuum suction plate (320).

2. In paragraph 1, The above peeling table (220) is connected to the table driving cylinder (230), The above peeling table (220) is Move forward by the pneumatic pressure of the above table driving cylinder (230), A label attachment device characterized in that it is configured to move backward by pulling force of the rear sheet (S) by driving the above driving roller (240).

3. In paragraph 1, A label attachment device characterized in that the table drive cylinder (230) is additionally provided with a backward detection sensor (234) that detects backward movement of the peeling table (220).

4. In paragraph 1, A support roller (270) configured to selectively contact the above drive roller (240) and the rear sheet (S) is additionally provided. When advancing the above peeling table (220), The above support roller (270) is maintained in a state separated from the above drive roller (240), A label attachment device characterized in that the rear sheet (S) between the drive roller (240) and the support roller (270) is configured in a tension-released state.

5. In paragraph 4, The above support roller (270) is coupled to the support roller holder (280), The above support roller holder (280) is It includes a rotary link (281) on which the above support roller (270) is installed, The above rotary link (281) is connected to a link driving means, According to the operation of the above link driving means A label attachment device characterized in that the support roller (270) is configured to be in contact with or separated from the drive roller (240).

6. In paragraph 1, Between the above vertical movement cylinder (320) and the above vacuum suction plate (330) A labeling device characterized in that it additionally has a rotatable rotary cylinder (340).

7. In paragraph 1, A label attachment device characterized in that a label detection sensor (222) is additionally installed on the above peeling table (220).

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