Labeling device

Abstract

By incorporating a structure that winds up the release paper using a release paper winding unit when moving the release paper, a label application device is provided that can handle release paper of various materials. [Solution] The label application device 21 consists of a grip 3 for holding by hand, a lever 4 that can rotate relative to the grip, a shaft 7 for setting a roll 6 on which release paper 5 is wound, a holding part 8 that detachably holds the roll set on the shaft, a roller 9 for attaching the label 5a peeled off the release paper to the target object, and a guide part 12 that guides the movement of the release paper from which the label has been peeled in the winding direction. Near the base of the lever, there is a release paper winding part 22 that transmits the force that rotates the lever via a release paper winding means to wind up the release paper, and the release paper is wound up by the release paper winding part and moved in the winding direction.

Description

Technical Field

[0001] The present invention relates to a labeling device that sets a roll on which a tape-shaped release paper with a large number of labels attached is wound, and while moving the release paper in the feeding direction, peels off the labels one by one from the release paper and attaches them to products.

Background Art

[0002] As a conventional labeling device, one having a configuration as shown in FIG. 14 is known. This labeling device 1 includes a grip 3 provided on one end side of a side plate 2, a lever 4 rotatable with respect to the grip 3, a shaft portion 7 provided near the middle of the side plate 2 for setting a roll 6 around which a release paper 5 is wound, a holding portion 8 that detachably holds the roll 6 set on the shaft portion 7, a label peeling portion 13 for peeling off a label 5a from the release paper 5, a roller 9 provided on the other end side of the side plate 2 for attaching the label 5a peeled off from the release paper 5 to an object, a guide portion 12 for guiding the movement of the release paper 5, and a release paper feeding portion 10 for moving the release paper 5 from which the label 5a has been peeled backward (in the direction of arrow A in FIG. 14).

[0003] In the labeling device 1 having such a configuration, when the grip 3 is gripped and the lever 4 is rotated, a plurality of claws 11 provided in the release paper feeding portion 10 as shown in FIG. 15 descend downward and pierce into the release paper 5, and the claws 11 move backward (in the direction of arrow A in FIG. 14, in the direction of arrow B in FIG. 15) as they are, and it is a mechanism for moving the release paper 5 as a whole.

[0004] In order to generate the tension for moving the release paper 5 only at this portion, this claw 11 needs to be a metal part so that it firmly pierces into the release paper 5 and can be applied with a strong force.

[0005] Japanese Patent Publication No. 2001-106215 discloses a label application machine (see Patent Document 1), and Japanese Patent Publication No. 2011-37491 discloses a label application device (see Patent Document 2). Both of these devices are equipped with claws for moving the release paper backward. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2001-106215 [Patent Document 2] Japanese Patent Publication No. 2011-37491 [Overview of the project] [Problems that the invention aims to solve]

[0007] In this conventional label application device 1, the claws 11 are inserted into the release paper 5, and a large force is applied to move it backward. This presents a problem in that, depending on the material of the release paper (e.g., film material), it may tear and become impossible to move. In this case, the types of labels that can be applied are limited.

[0008] Furthermore, in the conventional label application device 1, the release paper 5 from which the label 5a has been peeled off after passing through the release paper feeding section 10 hangs down, getting in the way of work, and also becomes crumpled, increasing its volume when discarded. Alternatively, in food processing facilities, dangling release paper can cause hygiene problems.

[0009] Furthermore, the claw 11 consists of multiple small metal parts, and any defects in the bending or sharpening of the claws necessitate manual adjustment. In other words, it has the problem of requiring a large amount of labor and driving up manufacturing costs.

[0010] Therefore, the conventional label application device 1 has several problems that need to be solved, including the fact that the claws 11 tear when they are inserted into the release paper 5, that the release paper 5 sags, and that the cost of processing the claws 11 is high. [Means for solving the problem]

[0011] The gist of the present invention, which solves the problems of the aforementioned conventional example, is a label application device comprising at least a grip for holding by hand, a lever rotatable relative to the grip, a shaft for setting a roll on which release paper is wound, a holding part for detachably holding the roll set on the shaft, a roller for attaching the label peeled off the release paper to an object, and a guide part for guiding the backward movement of the release paper from which the label has been peeled off, wherein a release paper winding part is provided near the base of the lever to transmit the force that rotates the lever via a release paper winding means to wind up the release paper, and the release paper winding part winds up the release paper and moves the release paper in the winding direction.

[0012] Furthermore, the release paper winding means comprises at least a lever gear provided at the base of the lever and rotating, a first connect gear that meshes with the lever gear and rotates, a second connect gear that rotates in conjunction with the operation of the first connect gear, a sensor gear that meshes with the second connect gear and rotates, an idler gear that meshes with the sensor gear and is laterally movable and rotates, a reel gear that meshes with the laterally moved idler gear and rotates, and the release paper winding part that rotates together with the rotation of the reel gear; The release paper winding section comprises at least a cylindrical winding reel and a reel stopper provided inside the winding reel and capable of being pressed against the inner wall of the winding reel, and is configured to hold the release paper between the winding reel and the reel stopper; It includes. [Effects of the Invention]

[0013] According to the label application device of the present invention, since the claws do not pierce the release paper and move backward as in conventional examples, the problem of the release paper tearing does not occur. In other words, because the release liner doesn't tear, it can be moved in conjunction with release liners of various materials. As a result, it offers the excellent advantage of being compatible with a wide range of label types.

[0014] Since the release paper removed from the label is wound up in the release paper winding section, the release paper does not hang down and get in the way as in conventional examples, and hanging release paper does not cause hygiene problems in food processing facilities, etc. Furthermore, when it comes time to dispose of the product, you can simply remove the rolled-up release paper and throw it away, which offers several advantages, including the ease of disposal.

[0015] Unlike conventional designs that use claws, this design eliminates the need for metal parts requiring intricate processing, resulting in easier manufacturing and a significant reduction in product costs.

[0016] Conventional labeling devices require a length corresponding to the distance between the claws that move backward. However, the labeling device of the present invention winds the release paper in the release paper winding section, eliminating the need for a distance between the claws' movements and thus enabling a reduction in size. Furthermore, not only can the product be made smaller, but its length can also be reduced, resulting in the center of gravity being placed closer to the user's hand. This, in turn, offers various excellent benefits, such as reducing arm fatigue during use. [Brief explanation of the drawing]

[0017] [Figure 1] This is a perspective view of the label application device according to the present invention. [Figure 2-1] This is a right side view of the label application device according to the present invention. [Figure 2-2] This is a perspective view of the lever gear. [Figure 2-3] This is a perspective view of a connect gear component. [Figure 3]It is a left side view of the label affixing device according to the present invention. [Figure 4] (A) It is a left side view of the label affixing device according to the present invention. (B) It is a perspective view showing an idler gear, an idler arm, and a shaft portion. (C) It is a front view showing an enlarged view of the idler gear and the reel gear. [Figure 5] (A) It is a left side view of the label affixing device according to the present invention. (B) It is a front view showing an enlarged view of the movement of the idler gear and the reel gear. [Figure 6] It is a right side view of the label affixing device according to the present invention. [Figure 7] It is a left side view of the label affixing device according to the present invention. [Figure 8] It is a left side view of the label affixing device according to the present invention. [Figure 9] (A) It is a left side view of the label affixing device according to the present invention. (B) It is an explanatory view showing a state where the tip of the label stopper meshes with the saw teeth and rotation stops. [Figure 10] (A) It is a left side view of the label affixing device according to the present invention. (B) It is an explanatory view showing a state where the label stopper meshes with the saw teeth and rotation stops. (C) It is an explanatory view showing a state where the movement of the reel gear is restricted by the ratchet stopper. [Figure 11] [Figure 6] It is a right side view of the label affixing device according to the present invention. [Figure 7] It is a left side view of the label affixing device according to the present invention. [Figure 8] It is a left side view of the label affixing device according to the present invention. [Figure 9] (A) It is a left side view of the label affixing device according to the present invention. (B) It is an explanatory view showing a state where the tip of the label stopper meshes with the saw teeth and rotation stops. [Figure 10] (A) It is a left side view of the label affixing device according to the present invention. (B) It is an explanatory view showing a state where the label stopper meshes with the saw teeth and rotation stops. (C) It is an explanatory view showing a state where the movement of the reel gear is restricted by the ratchet stopper. [Figure 11] It is a front view of the release paper winding portion. [Figure 12] (A)(B)(C) It is a front view of the release paper winding portion explaining the operation of the reel stopper. [Figure 13] It is an enlarged view of a state where the convex portion is located at the top of the leaf spring. [Figure 14] It is a perspective view of the label affixing device according to the conventional example. [Figure 15] It is a perspective view showing the release paper feeding portion and the claw at the bottom of the label affixing device according to the conventional example.

Embodiments for Carrying Out the Invention

[0018] Next, embodiments of the present invention will be described in detail with reference to the drawings. For ease of understanding, parts corresponding to the conventional example will be denoted by the same reference numerals as those used in the conventional example.

[0019] First, in Figure 1, reference numeral 21 indicates a label application device, which consists of a grip 3 provided on one end of the side plate 2 for being held by hand, a lever 4 rotatable relative to the grip 3, a shaft 7 for setting a roll 6 on which release paper 5 is wound, a holding part 8 for detachably holding the roll 6 set on the shaft 7, a label peeling part 13 for peeling the label 5a from the release paper 5, a roller 9 for attaching the label 5a peeled from the release paper 5 to the target object, a guide part 12 for guiding the movement of the release paper 5 from which the label 5a has been peeled in the winding direction (direction of arrow C in Figure 1), and a release paper winding part 22 for winding the release paper 5.

[0020] Near the base of the lever 4, there is a release paper winding section 22 that transmits the force that rotates the lever 4 via a release paper winding mechanism to wind up the release paper 5. The release paper winding section 22 winds up the release paper 5 and moves the release paper 5 in the winding direction.

[0021] The release paper winding mechanism will be described below. As shown in Figures 1 to 4(a), the release paper winding mechanism consists of a lever gear 23 that rotates at the base of the lever 4, a first connect gear 24 that rotates in mesh with the lever gear 23, a second connect gear 25 that rotates in conjunction with the operation of the first connect gear 24, a sensor gear 26 that rotates in mesh with the second connect gear 25, an idler gear 27 that is movable laterally and rotates in mesh with the sensor gear 26, a reel gear 28 that rotates in mesh with the laterally moved idler gear 27, and a release paper winding section 22 that rotates together with the rotation of the reel gear 28. In Figure 3, reference numeral 49 indicates the reel bracket, and Figure 4(a) shows the internal structure with the reel bracket 49 omitted.

[0022] The operation of the release paper winding mechanism will be explained in detail. Figure 2-1 shows a right side view of the label application device 21, and Figure 3 shows a left side view of the label application device 21. Figures 2-1 through 10 show the internal structure with the side plate 2 omitted.

[0023] As shown in Figures 2-1 and 2-2, the lever 4 is equipped with a lever gear 23 on its base side. When the grip 3 is grasped and the lever 4 is moved in the direction of arrow D around the shaft portion 4a, the lever gear 23 rotates in the direction of arrow E.

[0024] As the lever gear 23 rotates in the direction of arrow E, the first connect gear 24, which rotates in mesh with the lever gear 23, rotates in the direction of arrow F around the shaft portion 24a, as shown in Figure 2-1. The rotation of the first connect gear 24 in the direction of arrow F shown in Figure 2-1 corresponds to the rotation in the direction of arrow G shown in Figure 3. In this case, the second connect gear 25 rotates in the direction of arrow G around the shaft portion 24a. In other words, the first connect gear 24 and the second connect gear 25 are formed on the connect gear component 50, as shown in Figure 2-3, and rotate simultaneously.

[0025] As the second connect gear 25 rotates in the direction of arrow G around the shaft portion 24a, the sensor gear 26, which rotates in mesh with the second connect gear 25, rotates in the direction of arrow H around the shaft portion 26a, as shown in Figure 3.

[0026] As the sensor gear 26 rotates in the direction of arrow H, the idler gear 27, which rotates in mesh with the sensor gear 26, moves laterally in the direction of arrow I, as shown in Figure 4(a). As shown in Figure 4(b), the idler gear 27 has an idler arm 29 and the aforementioned shaft portion 26a. In other words, when the sensor gear 26 rotates in the direction of arrow H around the shaft portion 26a, the idler arm 29 follows and rotates, moving laterally in the direction of arrow I, and the idler gear 27 also moves laterally in the direction of arrow I. At this time, the idler gear 27 does not rotate. Figures 4(a) and 4(c) show the idler gear 27 moving laterally in the direction of arrow I, but it is not yet engaged with the reel gear 28.

[0027] As the idler gear 27 moves laterally in the direction of arrow I, the idler gear 27 becomes rotatable in the direction of arrow J, as shown in Figure 5(b). Furthermore, when the idler gear 27 moves laterally in the direction of arrow I, the idler gear 27 will mesh with the upper stage of the reel gear 28, as shown in Figures 5(a) and 5(b). When the idler gear 27 meshes with the reel gear 28 and rotates in the direction of arrow J, the reel gear 28 rotates around the reel shaft 28a in the direction of arrow K, as shown in Figure 5(b).

[0028] Figure 6 is a left side view of the label application device 21. When the reel gear 28 rotates in the direction of arrow K shown in Figure 5(b), the release paper winding unit 22, which rotates integrally with the reel gear 28, rotates in the direction of arrow L around the reel shaft 28a.

[0029] Next, the release paper winding section 22 will be described. As shown in Figures 1, 6, and 11, the release paper winding section 22 includes a winding reel 30 that is substantially cylindrical with a gap in a part thereof, and a reel stopper 31 that is provided inside the winding reel 30 and can be pressed against the inner wall of the winding reel 30. As shown in Figures 11 and 12, the reel stopper 31 is rotatable around the rotation axis 31a, and a reel stopper plate 32 is provided on the upper part of the reel stopper 31, as shown in Figure 6.

[0030] Figure 11 is a front view of the release paper winding section 22, where reference numeral 33 indicates the reel stopper spring and reference numeral 34 indicates the leaf spring. Reference numeral 35 indicates the operating piece of the reel stopper 31, reference numeral 36 indicates the protrusion, and reference numeral 37 indicates the clamping piece. As shown in Figure 11, the leaf spring 34 is pressing against the protrusion 36 of the reel stopper 31, and the clamping piece 37 is pressing against the inner wall 38 of the winding reel 30. In other words, Figure 11 shows the reel stopper 31 in the closed state. In this state, the end of the release paper 5 is sandwiched between the clamping piece 37 and the inner wall 38. As described above, the release paper winding section 22 rotates in the direction of arrow L when the lever 4 is operated, so that the release paper 5, which is held between the clamping piece 37 and the inner wall 38, is continuously wound up.

[0031] The operation of the reel stopper 31 will be explained. Figures 12(a), (b), and (c) are front views of the release paper winding section 22 illustrating the operation of the reel stopper 31. In Figure 12(a), when the operating piece 35 is moved in the direction of arrow M, the clamping piece 37 moves in the direction of arrow N, i.e., in the opening direction. At this point, when the finger is released from the clamping piece 37, the protrusion 36 is pushed by the pressing force of the leaf spring 34, and the clamping piece 37 returns to the clamped state (closed state of the reel stopper 31, the state in Figure 11). In Figure 12(b), the operating piece 35 has been moved further in the direction of arrow M, and the protrusion 36 is positioned at the top 34a of the leaf spring 34. This is the balanced state, and even if the finger is released from the clamping piece 37, the movement of the protrusion 36 stops. Figure 13 is an enlarged view of the state in which the protrusion 36 is positioned at the top 34a of the leaf spring 34. In Figure 12(c), the operating piece 35 has been moved further in the direction of arrow M, and the protrusion 36 has exceeded the top 34a and is pressing against the leaf spring 34. In other words, the reel stopper 31 is in the open state.

[0032] The label application device 21, configured as described above, includes a release paper winding unit 22 that transmits the force to rotate the lever 4 via a release paper winding means to wind up the release paper 5. The release paper winding unit 22 winds up the release paper 5 and moves the release paper 5 in the winding direction. Therefore, unlike the conventional label application device 1, there are no inconveniences such as the tabs 11 tearing when piercing the release paper 5, the release paper 5 sagging, or the high cost of processing the tabs 11.

[0033] Next, we will explain the action that occurs when lever 4 is squeezed further from the state shown in Figure 6. In Figure 7, reference numeral 39 indicates a sensor link, and a protruding boss 40 is provided at its tip. The boss 40 is designed to follow the cam groove 41 of the sensor gear 26. When the sensor gear 26 rotates in the direction of arrow H, the boss 40 follows the cam groove 41 and moves in the direction of arrow P. As the sensor gear 26 rotates, the sensor link 39 moves downward, as shown in Figure 8. The force causing this downward movement is the rod 43 that engages with the elongated hole 42 of the sensor link 39, and a constant downward force is applied to this part.

[0034] As shown in Figure 8, a sheet metal sensor stopper 44 is integrally provided adjacent to the sensor gear 26 (on the rear side of the sensor gear 26). The sensor stopper 44 has jagged sawtooth teeth 45 formed on its outer circumference, as well as a cam groove. The sensor operates when the sensor link 39 follows this cam groove. The sensor link 39 is provided with a label stopper arm 46, and the label stopper arm 46 is provided with a label stopper 47. As the boss 40 of the sensor link 39 moves down in accordance with the cam, the label stopper arm 46 also lifts upward, so the tip 47a of the label stopper 47 does not engage with the sawtooth 45 and the rotation does not stop, and the lever 4 moves.

[0035] Figures 9(a) and 9(b) show the state in which the sensor reacts to the step between the release paper 5 and the label 5a and stops the operation. When the rod 43 is lifted in the direction of arrow S, the sensor link 39 is lifted, and the tip 47a of the label stopper 47 moves closer to the direction of the sawtooth 45. As the rod 43 lifts the label stopper 47 in this way, it moves away from the cam groove side, and the tip 47a of the label stopper 47 engages with the sawtooth 45, stopping the rotation, and the lever 4 can no longer be squeezed.

[0036] Next, we will explain the operation of releasing the lever 4, as shown in Figures 10(a), (b), and (c). The reference numeral 48 shown in Figure 10(a) and (c) indicates a ratchet stopper. When lever 4 is released, the second connect gear 25 rotates in the direction of arrow P. When the second connect gear 25 rotates in the direction of arrow P, the sensor gear 26 rotates in the direction of arrow QH. When the sensor gear 26 rotates in the direction of arrow QH, the idler gear 27 is pulled by the rotation of the sensor gear 26 and moved away from the reel gear 28. Once the movement stops, the idler gear 27 rotates in the direction of arrow R. Since there is nothing in contact with the reel gear 28, it does not rotate. Furthermore, the reel gear 28 is restricted by a ratchet stopper 48 so that it does not move unintentionally in any direction other than the winding direction of the release paper 5 (arrow L direction in Figure 6). Figure 10(b) is an explanatory diagram showing the state in which the tip 47a of the label stopper 47 engages with the sawtooth 45 and stops the rotation. The sawtooth 45 is shaped to escape the direction of rotation and does not get caught, so the rotation does not stop. Figure 10(c) shows the state in which the ratchet stopper 48 restricts the movement of the reel gear 28. Unless this ratchet stopper 48 is released, the release paper winding unit 22 can only move in the direction of winding the release paper 5. [Explanation of symbols]

[0037] 1. Labeling device 2 side plates 3 Grips 4 Lever 4a Shaft 5. Release paper 5a Label 6 rolls 7. Shaft section 8 Holding part 9 Laura 10. Release paper feed section 11 claws 12 Information Department 13 Label peeling area 21 Labeling device 22 Release paper winding section 23 Lever Gear 24. First Connect Gear 24a Shaft 25. Second Connect Gear 26 Sensor Gear 26a Shaft 27 Idler gear 28 Reel Gear 28a Reel Shaft 29 Idler Arm 30 reel 31 Reel stopper 31a Rotation axis 32 Reel stopper plate 33 Reel stopper spring 34 Leaf springs 34a Top 35 Operation piece 36 Convex part 37 Clamping piece 38 Inner wall 39 Sensor Link 40 Boss 41 Cam groove 42 long hole 43 bars 44 Sensor Stopper 45 serrated teeth 46 Label stopper arm 47 Label stopper 47a Tip 48 Ratchet Stopper 49 Reel Bracket 50 Connect Gear Parts

Claims

1. A label application device comprising at least a grip for holding by hand, a lever rotatable relative to the grip, a shaft for setting a roll on which release paper is wound, a holding part for detachably holding the roll set on the shaft, a roller for attaching the label peeled off the release paper to the target object, and a guide part for guiding the backward movement of the release paper from which the label has been peeled, Near the base of the lever, there is a release paper winding section that transmits the force that rotates the lever via a release paper winding means to wind up the release paper. The release paper winding unit winds up the release paper and moves the release paper in the winding direction. A labeling device characterized by the following.

2. The aforementioned release paper winding means is A lever gear provided at the base of the aforementioned lever and which rotates, A first connect gear that rotates in mesh with the lever gear, A second connect gear rotates in conjunction with the operation of the first connect gear, A sensor gear that meshes with the second connect gear and rotates, An idler gear that meshes with the sensor gear and is capable of lateral movement and rotation, A reel gear that rotates in mesh with the idler gear that has moved laterally, The release paper winding section rotates together with the rotation of the reel gear, and consists of at least the following: A label-applying device according to claim 1, characterized by the following:

3. The aforementioned release paper winding section comprises at least a cylindrical winding reel and a reel stopper provided inside the winding reel and capable of being pressed against the inner wall of the winding reel. The winding reel and the reel stopper are configured to hold the release paper between them. A label-applying device according to claim 1, characterized by the following:

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