JP5689675B2 - Label mounting device - Google Patents

Description

The present invention relates to a label mounting device including a label expanding mechanism for expanding a stretch label larger than an outer diameter of the mounted body when the stretch label is mounted on a mounted body such as a bottle or a bottle.

  A label mounting device for mounting a cylindrical stretch label on the outer peripheral surface of a mounted object such as a bottle or a bottle is usually provided with a label expanding mechanism having an opening / closing claw, and a cylinder is attached to the closed opening / closing claw. After opening the opening and closing claws, the stretch label is expanded larger than the outer diameter of the mounted body, and the mounted body is inserted into the expanded stretch label. The cylindrical stretch label is attached to the attached body by removing the opening / closing claw from between the stretch label and the attached body.

  An example of the label spreading mechanism is shown in FIG. The label expanding mechanism 50 includes an annular disk 51 having a cam groove 52, a sliding member 53 that slides on the annular disk 51 in the radial direction of the annular disk 51, and a stretch fixed to the sliding member 53. A pair of opening and closing claws 54 of the same shape for expanding the label L is provided, and a cam follower 55 that fits into a cam groove 52 formed in the annular disk 51 is attached to the sliding member 53. .

  As shown in the figure, the cam groove 52 has a large diameter corresponding to the open position while extending in the rotation direction from the small diameter concentric circle D1 corresponding to the closed position with the rotation center of the annular disk 51 as the center. When the annular disk 51 is rotated in the direction indicated by the arrow in the drawing by a drive mechanism (not shown), the sliding member 53 is moved into the cam groove as shown in FIG. The two pairs of opening / closing claws 54 are closed by moving to the inside in the radial direction of the annular disk 51 by the cam mechanism including the 52 and the cam follower 55.

  Then, as shown in FIG. 17, when the cylindrical stretch label L is inserted into the closed open / close claw 54 and the annular disk 51 is rotated in the opposite direction, the two pairs of open / close claws 54 are respectively opened and closed. The stretch label L inserted into the nail 54 is expanded.

Special table 2010-513150 gazette

  By the way, in the label mounting apparatus as described above, in the state where the stretch label is expanded larger than the outer diameter of the mounted body, insertion of the mounted body and extraction of the opening / closing claw are performed. When inserting the body to be attached to the stretch label, it is desirable that the stretch label and the open / close nails have a high frictional resistance so that the stretch label cannot be easily detached from the open / close nails that are expanding the stretch label. When removing the opening / closing claw from between the stretch label and the attached body, the one with the smaller frictional resistance between the stretch label and the opening / closing claw should be used so that the stretch label attached at a predetermined position of the attached body does not shift. desirable.

  However, in the label expanding mechanism as described above, the frictional resistance between the stretch label and the opening / closing claw when inserting the mounted body into the expanded stretch label, and the opening / closing nail after inserting the mounted body into the stretch label. There is a problem that it is not possible to change the frictional resistance between the stretch label and the opening / closing claw when pulling out the sheet, and it is impossible to meet the above-mentioned demand.

Accordingly, the object of the present invention is to increase the frictional resistance between the stretch label and the opening / closing claw when inserting the attached body into the expanded stretch label, and pull out the opening / closing claw from between the stretch label and the attached body. At the time, it is to provide a label mounting apparatus provided with a label expanding mechanism capable of reducing the frictional resistance between the stretch label and the opening / closing claw.

In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that a stretch label opened in a cylindrical shape is fitted on a plurality of closed open / close claws, and the stretch label is opened by opening the open / close claws. A cylindrical stretch label is attached to the mounted body by inserting the mounted body in a state of being larger than the mounted body and removing the plurality of opening / closing claws from between the stretch label and the mounted body. The label mounting device is equipped with a label expanding mechanism for expanding a stretch label by opening a plurality of the opening and closing claws, and the label expanding mechanism includes a concentric circle with the opening and closing claws attached to a tip. A plurality of levers supported so as to be swingable, and drive means for swinging the levers, and the angle of the lever when the opening / closing claw is opened to the expansion position of the stretch label, The opening / closing claw of the opening / closing claw with respect to the stretch label when the opening / closing claw is slightly closed from the expansion position of the stretch label due to a difference with the angle of the lever when the opening / closing claw is slightly closed from the expansion position of the stretch label. The contact area is smaller than the contact area of the opening / closing claw with respect to the stretch label when the opening / closing claw is opened to the expansion position of the stretch label, and the plurality of opening / closing claws of the label expanding mechanism are expanded with the stretch label. The label mounting apparatus is characterized in that the opening / closing claw is pulled out from between the stretch label and the mounted body in a state of being slightly closed from the open position .

According to a second aspect of the present invention, in the label mounting apparatus according to the first aspect of the present invention, the drive means is a follower mounted on a swing shaft of the lever that rotates in the forward and reverse directions with the swing of the lever. A gear and an inner tooth are formed on the inner peripheral surface, and an outer tooth is formed on the outer peripheral surface, and the driven gear mounted on the swing shaft of each lever is rotatably supported in a state where it is engaged with the inner tooth. A ring-shaped intermediate gear, a driving gear meshing with the external teeth of the intermediate gear, and a drive mechanism for rotating the driving gear in forward and reverse directions.

As described above, in the label mounting apparatus according to the first aspect of the present invention , the label expanding mechanism includes the angle of the lever when the opening / closing claw opens to the expansion position of the stretch label, and the opening / closing claw expands the stretch label. The contact area of the opening / closing claw with respect to the stretch label when the opening / closing claw is slightly closed from the expansion position of the stretch label is determined by the difference from the lever angle when the opening / closing claw is slightly closed from the position. Since the contact area of the opening and closing claw with respect to the stretch label when opened to the position is smaller, the frictional resistance between the stretch label and the opening and closing claw when the opening and closing claw is opened to the expanded position of the stretch label is increased, but opening and closing The frictional resistance between the stretch label and the opening / closing claw when the nail is slightly closed from the expansion position of the stretch label is reduced.

Therefore, as in the label mounting apparatus of the present invention, with the plurality of opening / closing claws of the label expanding mechanism slightly closed from the expanded position of the stretch label, the opening / closing claws are extracted from between the stretch label and the mounted body. In doing so, when inserting the attached body into the expanded stretch label, the stretch label is difficult to come off from the opening and closing nail, the stretch label can be securely attached to the predetermined position of the attached body, When the opening / closing claw is extracted from between the stretch label and the mounted body, the stretch label mounted at a predetermined position of the mounted body is not easily displaced.

Further, in the label mounting apparatus according to the second aspect of the present invention , the label expanding mechanism rotates the intermediate gear engaged with the driven gear mounted on the swing shaft of the lever in the forward and reverse directions, thereby Since the lever is swung, it is possible to arrange a larger number of levers as compared with the case where the lever is swung using a link mechanism. Accordingly, the stretched shape of the stretch label can be made closer to a circle, and the stretch label can be easily attached to the mounted body.

It is a schematic plan view which shows the label mounting system provided with one Embodiment of the label mounting apparatus concerning this invention. It is the schematic which shows the label mounting head of a label mounting apparatus same as the above. It is sectional drawing which shows the label opening mechanism in a label mounting head same as the above. It is a top view which shows the clamp member in a label opening mechanism same as the above. (A), (b) is a side view which shows the opening / closing drive means of the clamp member same as the above. It is a top view which shows the label expansion mechanism in a label mounting head same as the above. It is a side view which shows a label expansion mechanism same as the above. It is a longitudinal cross-sectional view which shows a label expansion mechanism same as the above. (A)-(d) is a top view which shows the open / close state of the opening-and-closing claw which comprises the label expansion mechanism same as the above. It is operation | movement explanatory drawing which shows label mounting operation | movement of a label mounting apparatus same as the above. It is operation | movement explanatory drawing which shows label mounting operation | movement of a label mounting apparatus same as the above. It is operation | movement explanatory drawing which shows label mounting operation | movement of a label mounting apparatus same as the above. (A) is a figure which shows the contact state of a label and an opening-and-closing nail when a label is expanded, (b) is a label when an opening-and-closing nail is closed slightly in order to extract an opening-and-closing nail from between a label and a bottle. It is a figure which shows the contact state of an opening and closing claw. (A) is a top view which shows the positional relationship of a bottle and an opening-and-closing claw when a bottle is inserted in the expanded label, (b) is a side view which shows the positional relationship of a bottle and an opening-and-closing claw in the same state as the above. It is. (A) is a top view which shows the positional relationship of a bottle and an opening-and-closing claw when an opening-and-closing claw is slightly closed in order to extract an opening-and-closing claw from between a label and a bottle, (b) is a bottle and opening and closing in the state same as the above. It is a side view which shows the positional relationship with a nail | claw. It is a schematic block diagram which shows the conventional label expansion mechanism. It is a schematic block diagram which shows the state which the opening-and-closing claw closed in the label expansion mechanism same as the above.

  Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 shows a label mounting system 1 for mounting a cylindrical stretch label (hereinafter referred to as a label) L formed of an elastic stretch film made of polyethylene resin on a PET bottle (hereinafter referred to as a bottle) B. The label mounting system 1 includes a bottle feeder 2 composed of a belt conveyor 7, a star wheel 2a, a screw conveyor 2b, and a star wheel 2c, and a long length fed from a base material roll by a base material feeding portion 3a. A label supply device 3 that sequentially forms the label L while sequentially cutting the label forming base material M and supplies the label L to the first label delivery position α, and the first label delivery position by the label supply device 3 a label delivery device 4 for receiving the label L supplied to α and transporting it to the second label delivery position β, and a bottle supply position γ The bottle B supplied from the bottle supply device 2 is received and conveyed to the bottle delivery position δ, and the label L conveyed by the label delivery device 4 is received at the second label delivery position β. Is transported from the bottle supply position γ to the bottle delivery position δ, and the rotary type label mounting device 5 for mounting the label L on the bottle B and the bottle B to which the label L is mounted by the label mounting device 5 are unloaded. And a bottle conveying device 6 comprising a star wheel 6a, a screw conveyor 6b and a belt conveyor 7.

  The label-forming base material M is formed by continuously connecting cylindrical labels L attached to the bottle B, and is wound around a drum in a state of being folded into a sheet shape in the base material feeding portion 3a. ing. Further, the sheet-like label forming base material M fed from the base material feeding portion 3a is folded in the middle of its supply so that it can be easily opened into a cylindrical shape when the label L is attached to the bottle B. (See FIG. 1).

  As shown in FIGS. 1 and 2, the label mounting device 5 includes a support disk 11 attached to a rotary shaft (not shown) and a plurality of support arms 12 and 12 projecting radially from the rotary shaft. A plurality of label mounting heads 10 mounted at regular intervals on a concentric circle with a rotation axis as a center, and a tube folded by each label mounting head 10 into a sheet received at the second label delivery position β When the bottle L received at the bottle supply position γ is transported to the bottle delivery position δ, the body of the bottle B is expanded. It comes to be attached to the part.

  The label mounting head 10 includes a label expanding means 20 that expands the cylindrical label L folded in a sheet shape received at the second label delivery position β larger than the outer diameter of the bottle B at the label mounting level. The bottle B placed on the lifting platform 43 at the lower position of the label mounting level at the bottle supply position γ is inserted into the label L expanded at the label mounting level by raising the lifting platform 43. It is comprised from the raising / lowering means 40. FIG.

  As shown in FIG. 2, the label expanding means 20 receives a label L folded in a sheet shape delivered by the label delivery device 4 at a position directly above the bottle B placed on the lifting platform 43. A label opening mechanism 21 that opens in a shape, and a label expanding mechanism 25 that expands the label L opened by the label opening mechanism 21 larger than the outer diameter of the bottle B by an opening / closing claw. The spreading mechanism 25 is fixedly installed at the label mounting level by the support disk 11, and the label opening mechanism 21 is disposed at a position directly above the label spreading mechanism 25 so as to be movable up and down.

  As shown in FIGS. 2 to 5, the label opening mechanism 21 is sucked into the clamp member 22 by sucking from a pair of clamp members 22 that can be opened and closed, and a suction port formed in the clamping portion 22 a of the clamp member 22. It comprises a suction means (not shown) for sucking and holding both sides of the sandwiched label L by the clamp member 22, an opening / closing drive means 23 for opening and closing the clamp member 22, and a lifting means 24 for raising and lowering the clamp member 22. The label opening mechanism 21 receives the label L folded in a sheet shape conveyed by the label delivery device 4 when the clamp member 22 sandwiches the label L at the second label delivery position β, and the suction means operates. In this state, the clamp member 22 is opened in a state where both surfaces of the label L are sucked and held by the holding portions 22a. By separating the two sides of the label L to each other, so as to open the label L into a tubular shape.

  As shown in FIGS. 1 and 3, the label delivery device 4 has a sheet-like label L attached to the tip of an arm that rotates so as to pass through the first label delivery position α and the second label delivery position β. It has a “U” -shaped label adsorbing portion 4a that adsorbs one side, and the label L adsorbed on the label adsorbing portion 4a is sandwiched by the clamping portion 22a of the clamp member 22 and separated from the label adsorbing portion 4a. Thus, the delivery of the label L is performed.

  As shown in FIGS. 2 to 5, the opening / closing drive means 23 includes a spring 23 a that normally urges the clamp member 22 in the closing direction, and a pair of rollers 23 b that are attached to the base end side of the clamp member 22. And an operating rod 23c to which a cam member 23d having a cam surface that comes into contact with both rollers 23b by being inserted between the rollers 23b is attached to the lower end portion. As shown in FIG. 2, a cam follower 23e that is supported by the support arm 12 so as to be movable up and down and that fits into a cam groove (not shown) is attached to the upper end portion via an attachment arm 23f.

  In the opening / closing drive means 23 configured as described above, as shown in FIG. 5B, when the cam follower 23e is lowered by the cam groove, the operation rod 23c is lowered accordingly, and the lower end portion of the operation rod 23c. The cam member 23d attached to the roller 23b pushes the roller 23b to open the clamp member 22. Therefore, the clamp member 22 is opened and closed by moving the operating rod 23c up and down by the cam mechanism including the cam groove and the cam follower 23e.

  As shown in FIG. 2, the elevating means 24 includes an operating rod 24a supported by the support arm 12 so as to be movable up and down, a support member 24b for attaching the clamp member 22 to the lower end of the operating rod 24a, and an operating rod 24a. And a cam follower 24c fitted in a cam groove (not shown) that is attached to the upper portion of the cam by a mounting arm 24d. By moving the operating rod 24a up and down by a cam mechanism comprising the cam groove and the cam follower 24c, the clamp The member 22 is moved up and down.

  As shown in FIGS. 6 to 8, the label expanding mechanism 25 swings on a concentric circle of the upper annular disk 26 via a bearing 28 and a swing shaft 29 rotatably supported by the bearing 28. A plurality of levers 27 that are supported, open / close claws 30 that are vertically attached to the tips of the levers 27, and followers fixed to the swing shafts 29 on the lower surface side of the upper annular disk 26. A gear 31, an inner tooth on the inner peripheral surface, an outer tooth on the outer peripheral surface, an annular intermediate gear 32 in which the driven gear 31 meshes with the inner tooth, and this intermediate gear 32 is connected to the upper annular disk 26. And a lower annular disk 33 that is rotatably sandwiched between them, and the lower annular disk 33 is fixed around the insertion hole of the bottle B formed in the support disk 11.

  Circumferential grooves are formed on the lower surface of the upper annular disk 26 and the upper surface of the lower annular disk 33, respectively, and circumferential grooves are formed on the upper surface and the lower surface of the intermediate gear 32 so as to face the respective circumferential grooves. A large number of balls 34 are accommodated between the circumferential groove formed on the lower surface of the upper annular disk 26 and the circumferential groove formed on the upper surface of the intermediate gear 32, and the circumferential surface formed on the upper surface of the lower annular disk 33. A large number of balls 34 are accommodated between the groove and the circumferential groove formed on the lower surface of the intermediate gear 32, so that the intermediate gear 32 can rotate at a fixed position between the upper annular disk 26 and the lower annular disk 33. It is supported.

  As shown in FIG. 6, a shaft 36 is rotatably supported on the support disk 11 via a bearing 35 on the outside of the intermediate gear 32, and the shaft 36 has external teeth of the intermediate gear 32. A driving gear 37 that meshes with the arm 38 and an arm 38 having a cam follower 39 attached to the tip are fixed. The cam follower 39 is fitted in a cam groove (not shown) formed in an annular plate member disposed along the rotation track of the label mounting head 10.

  Therefore, when the arm 38 is swung by the cam mechanism including the cam groove and the cam follower 39, the driving gear 37 fixed to the shaft 36 is rotated, and accordingly, the intermediate gear 32 with which the driving gear 37 is engaged is rotated. Since it rotates, the driven gear 31 meshed with the internal teeth of the intermediate gear 32 also rotates, and the lever 27 swings accordingly, as shown in FIGS. 9A to 9D. An opening / closing claw 30 attached to the tip of the lever 27 opens and closes in the radial direction of the annular disk 26.

  As shown in FIG. 2, the bottle lifting / lowering means 40 includes an operation rod 41 supported by the support arm 12 so as to be movable up and down, and a bottle B attached to the lower end of the operation rod 41 via an attachment arm 42. And a cam follower 45 that is attached to the operating rod 41 via a mounting arm 44 and fits in a cam groove (not shown). The cam mechanism includes the cam groove and the cam follower 45. The elevator 43 is moved up and down by moving the operating rod 41 up and down.

  In addition, the bottle elevating means 40 holds the bottle B on the elevating table 43 while lowering the elevating platform 43 while the bottle B is placed, while descending in conjunction with the descending operation of the elevating platform 43. The holding means includes an operating rod 46 that is supported by the support arm 12 so as to be movable up and down, and a head that fits into the head of the bottle B attached to the lower end of the operating rod 46. It comprises a holder 47 and a cam follower 49 fitted in a cam groove (not shown) attached to the center of the operation rod 46 via a mounting arm 48, and the operation rod 46 is moved up and down by a cam mechanism comprising the cam groove and the cam follower 49. By moving it, the head holder 47 is moved up and down.

  As shown in FIG. 1, the label mounting device 5 configured as described above first clamps a cylindrical label L folded into a sheet that has been conveyed to the label delivery position β by the label delivery device 4. The label 22 is received when the member 22 is sandwiched. At the position immediately before the second label delivery position β, the label mounting head 10 is fixed at the label mounting level as shown in FIGS. 10 (a) and 10 (b). The head holder 47 and the clamp member 22 are located above the installed opening / closing claw 30, and the label mounting head 10 approaches the label delivery position β as shown in FIGS. On the other hand, the clamp member 22 is gradually closed and the opening / closing claw 30 is also closed. As shown in FIG. 5C, the clamp member 22 grips the label L at the label delivery position β. Receive a label L from the delivery device 4, the label L is conveyed to the front of the left bottle delivery position δ of the state (see FIG. (D)). In addition, at this time, as shown to the same figure (a)-(d), the bottle B with which the label L was mounted | worn by the previous process is mounted in the raising / lowering base 43, and it shows to the figure (e). In this way, the bottle B with the label L attached is delivered to the bottle transport device 6 at the bottle delivery position δ.

  Then, as shown in FIG. 5E, the clamp member 22 holding the label L is opened, and after opening the label L into a cylindrical shape, the clamp member 22 and the head holder 47 are gradually lowered. On the other hand, as shown in FIG. 11 (f) (FIG. 11 (f)), at the bottle supply position γ, the label L opened in a cylindrical shape (elliptical shape) is inserted into the open / close claw 30 in the closed state. At the same time, a new bottle B delivered from the bottle supply device 2 is placed on the lifting platform 43.

  Next, as shown in FIG. 11 (g), the head holder 47 is lowered and the head holder 47 pushes down the label L inserted into the opening / closing claw 30, so that the lower end of the label L is the opening / closing claw 30. Abutting on the stepped portion 30a, the label L is reliably positioned at the label mounting level, and the lifting platform 43 on which the bottle B is placed starts to rise. In addition, when the label L is positioned by the head holder 47, the suction of the clamp member 22 is released, and at the same time, the clamp member 22 is slightly opened, and the suction holding of the label L by the clamp member 22 is released. It is in the state.

  In this way, when the label L is positioned at the label mounting level, the opening / closing claw 30 is opened as shown in FIG. The head holder 47 rises slightly and waits. When the label L is expanded at the label mounting level, the clamp member 22 is slightly closed to press and hold the label L against the opening / closing claw 30, and as shown in FIG. The bottle B rising by the table 43 is inserted into the expanded label L, and the head of the bottle B is fitted into the head holder 47.

  In the state where the label L is expanded by the opening / closing claw 30, the contact area between the outer surface of the opening / closing claw 30 and the label L is maximized as shown in FIG. In the state of being inserted into the label L, a certain gap is formed between the opening / closing claw 30 and the bottle B as shown in FIGS. 14 (a) and 14 (b).

  In this state, since the upper end portion of the label L above the opening / closing claw 30 is in close contact with the outer peripheral surface of the body portion of the bottle B, as shown in FIG. 11 (j) (FIG. 12 (j)) After releasing the gripping of the label L by the clamp member 22, the clamp member 22 is raised, and the label L is held in the bottle B by gripping the upper end portion of the label L that is in close contact with the bottle B together with the bottle B. Is done.

  Then, as shown in FIG. 12 (k), when the lifting platform 43, the head holder 47, and the clamp member 22 are all raised, the bottle B is temporarily lifted while the clamp member 22 holds the label L on the bottle B. When the opening / closing claw 30 is removed from the label L to cancel the expansion of the label L, the label L is completely attached to the bottle B.

  However, when the opening / closing claw 30 is extracted from between the label L and the bottle B, the opening / closing claw 30 is slightly closed as shown in FIGS. 15 (a) and 15 (b). Since the inclination angle of the claw 30 slightly changes, the contact area between the opening / closing claw 30 and the label L is smaller than when the bottle B is inserted into the expanded label L, as shown in FIG. As described above, the label L comes into contact with only the corners of the opening / closing claw 30.

  Subsequently, when the clamp member 22 is opened, the holding of the label L with respect to the bottle B is released, and the lift table 43 and the head holder 47 are lowered together as shown in FIG. After retracting the mounted bottle B from the label mounting level, the head holder 47 rises and returns to the original position shown in FIG. 10A, and as described above, at the bottle delivery position δ, the label L The bottle B to which is attached is delivered to the bottle conveying device 6.

  As described above, in the label expanding mechanism 25 employed in the label mounting device 5, the contact area between the opening / closing claw 30 and the label L when the label L is expanded is maximized. The opening / closing claw 30 expands the label L by the difference between the angle of the lever 27 when the opening / closing claw 30 is opened and the angle of the lever 27 when the opening / closing claw 30 is slightly closed from the opening position of the label L. The contact area of the opening / closing claw 30 with respect to the label L when slightly closed from the position is smaller than the contact area of the opening / closing claw 30 with respect to the label L when the opening / closing claw 30 is opened to the expanded position of the label L. Is the maximum frictional resistance between the label L and the opening / closing claw 30, but the frictional resistance between the label L and the opening / closing claw 30 when the opening / closing claw 30 is slightly closed from the expansion position of the label L is When the label L is expanded Smaller than the frictional resistance between the label L and the closing pawl 30.

  Therefore, as in the label mounting device 5, the plurality of opening / closing claws 30 of the label spreading mechanism 25 are slightly closed from the position where the label L is spread, and the opening / closing claws 30 are placed between the label L and the bottle B. When the bottle B is inserted into the expanded label L, it is difficult for the label L to come off from the opening / closing claw 30 and the label L can be securely attached to a predetermined position of the bottle B. When the opening / closing claw 30 is extracted from between the label L and the bottle B, the label L attached to a predetermined position of the bottle B is not easily displaced.

  The label expanding mechanism 25 swings the lever 27 by rotating the intermediate gear 32 meshed with the driven gear 31 mounted on the swing shaft 29 of the lever 27 in the forward and reverse directions. Therefore, a large number of levers can be arranged as compared with the case where the levers are swung using a link mechanism. Accordingly, the stretched shape of the stretch label can be made closer to a circle, and the stretch label can be easily attached to the mounted body.

  In the above-described embodiment, the driving gear 37 that meshes with the external teeth of the intermediate gear 32 is rotated in the forward and reverse directions by the cam mechanism including the cam groove and the cam follower 39. However, the present invention is not limited to this. Instead, it may be rotated by a motor or the like.

  In the above-described embodiment, the case where the stretch label is attached to the PET bottle has been described. However, the attached body is not limited to the PET bottle as described above, and the label expanding mechanism and the label attachment according to the present invention. It goes without saying that the apparatus can be applied to a case where a stretch label is attached to various containers such as bottles and cans and a cylindrical body.

  The present invention can be used in a label mounting apparatus that mounts a stretch label on a mounted body such as a bottle or a bottle.

DESCRIPTION OF SYMBOLS 1 Label mounting system 5 Label mounting apparatus 10 Label mounting head 20 Label expansion means 21 Label opening mechanism 25 Label expansion mechanism 26 Upper annular disk 27 Lever 28 Bearing 29 Oscillating shaft 30 Opening / closing claw 31 Drive gear 32 Intermediate gear 33 Lower annular Disk 34 Ball 35 Bearing 36 Shaft 37 Driving gear 38 Arm 39 Cam follower 40 Bottle lifting means B Bottle L Stretch label

Claims (2)

The stretch label that is opened in a cylindrical shape is fitted to a plurality of open / close claws in a closed state, and the attached body is inserted in a state in which the stretch label is expanded wider than the attached body by opening the plurality of open / close claws. And, by removing a plurality of the opening and closing claws from between the stretch label and the mounted body, a label mounting device for mounting a cylindrical stretch label on the mounted body,
It is equipped with a label expansion mechanism that expands the stretch label by opening a plurality of the opening and closing claws ,
The label expanding mechanism includes a plurality of levers that are swingably supported on a concentric circle with the opening / closing claw attached to a tip, and a driving unit that swings the lever.
Depending on the difference between the angle of the lever when the opening / closing claw is opened to the expanded position of the stretch label and the angle of the lever when the opening / closing claw is slightly closed from the expanded position of the stretch label, the opening / closing claw The contact area of the opening / closing claw with respect to the stretch label when the opening / closing claw is slightly closed from the expansion position of the stretch label is greater than the contact area of the opening / closing claw with respect to the stretch label when the opening / closing claw is opened to the expansion position of the stretch label. It ’s getting smaller,
A label characterized in that the opening and closing claws are pulled out from between the stretch label and the mounted body in a state where the plurality of opening and closing claws of the label spreading mechanism are slightly closed from the spread position of the stretch label. Mounting device. The driving means includes
A driven gear mounted on a swing shaft of the lever that rotates in the forward and reverse direction with the swing of the lever;
An inner tooth is formed on the inner peripheral surface, an outer tooth is formed on the outer peripheral surface, and a driven gear mounted on the swing shaft of each lever is engaged with the inner tooth so as to be rotatably supported. An intermediate gear,
A driving gear meshing with the external teeth of the intermediate gear;
The label mounting apparatus according to claim 1, further comprising a drive mechanism that rotates the driving gear in forward and reverse directions.

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