JP5301416B2 - Glue roller position adjustment device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a position adjusting device of a glue roller capable of preventing any side deviation when adjusting the position of a glue roller to a pallet. <P>SOLUTION: The position adjusting device 20 for adjusting the position of a glue roller 8 for feeding adhesive AD to each of a plurality of pallets 7a provided circumferentially along a pallet table 7 turnable around the center axis AX1 includes an installation table 21 on which the glue roller 8 is installed, and a base 22 for movably supporting the glue roller 8 to the installation table 21. A key 28 having a guide face 28a along the pallet table 7 in the radial direction D is formed on any one of the installation table 21 and the base 22. A key groove 27 to be fitted to the guide face 28a is formed in the other of the installation table 21 or the base 22 so as not to be movable in the direction orthogonal to the radial direction D. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a position adjustment device for a glue roller that applies an adhesive to an object such as a label of a container.

  In an apparatus for applying a label to a container such as a beer bowl, the pallet is brought into contact with a glue roller to which an adhesive is supplied to the outer peripheral surface, and thereby the label is supplied to the pallet to which the adhesive has been applied to adhere to the application surface. A label to which the agent is applied is affixed to the container (see, for example, Patent Document 1). In such a labeling device, it is necessary to adjust the interval between the glue roller and the pallet in order to appropriately apply the adhesive to the pallet. On the other hand, Patent Documents 2 and 3 are well known as object position adjustment mechanisms.

Japanese Patent No. 4335155 JP 2007-69298 A Japanese Patent No. 3979684

  A plurality of pallets are provided at equal intervals in the circumferential direction of the pallet table that rotates about the central axis with respect to the glue roller. A glue roller is provided adjacent to the pallet table, and the distance between the two is adjusted by moving the glue roller along the radial direction of the pallet table. However, if a lateral shift occurs during the movement of the glue roller, the positional relationship between the glue roller and the pallet during application of the adhesive may be shifted.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a glue roller position adjusting device capable of preventing a lateral shift at the time of adjusting the position of the glue roller with respect to the pallet.

  The glue roller position adjusting device of the present invention is provided with adhesive (7a) for each of a plurality of pallets (7a) provided along the circumferential direction of a pallet table (7) rotatable around a central axis (AX1). AD) a position adjusting device (20) for adjusting the position of a glue roller (8) for supplying, an installation part (21) where the glue roller is installed, and the glue roller is moved relative to the installation part A key portion (28) having a guide surface (28a) along a radial direction (D) of the pallet table on either the installation portion or the support portion. ) And a key groove (27) that fits the guide surface so as not to move in a direction orthogonal to the radial direction is provided on either the installation portion or the support portion. Especially Ri to solve the above-mentioned problems.

  According to the glue roller position adjusting device of the present invention, the key groove provided in the support portion that supports the glue roller is fitted with the key provided in the installation portion. When adjusting the position of the glue roller, the keyway is guided in the radial direction of the pallet table by the guide surface of the key. Therefore, it is possible to prevent the lateral displacement from occurring when adjusting the position of the glue roller and to move the glue roller only in a desired direction. Therefore, the interval between the pallet and the glue roller can be adjusted with high accuracy.

  In one form of the position adjusting device of the present invention, a feed screw (29a) arranged parallel to the radial direction and screwed into the support portion may be provided. According to this form, the support part advances and retreats in the radial direction of the pallet table by operating the feed screw. The support part can be moved by a simple operation.

  In one embodiment of the position adjusting device of the present invention, a measuring means (25) for measuring the displacement of the support portion may be provided. According to this aspect, fine adjustment can be easily performed by measuring the displacement of the support portion when adjusting the position of the glue roller.

  In addition, in the above description, in order to make an understanding of this invention easy, the reference sign of the accompanying drawing was attached in parenthesis, but this invention is not limited to the form of illustration by it.

  As described above, in the glue roller position adjusting device of the present invention, the key groove provided in the support portion that supports the glue roller is fitted with the key provided in the installation portion. When adjusting the position of the glue roller, the sliding surface of the keyway is guided in the radial direction of the pallet table by the guide surface of the key. Therefore, it is possible to prevent the lateral displacement from occurring when adjusting the position of the glue roller and to move the glue roller only in a desired direction. Therefore, the interval between the pallet and the glue roller can be adjusted with high accuracy.

The top view of the label sticking apparatus with which the position adjustment apparatus of the glue roller which concerns on one form of this invention was applied. The perspective view of the label sticking part provided in the label sticking apparatus. The top view of a position adjustment apparatus. The side view of a position adjustment apparatus.

  FIG. 1 is a plan view of a label sticking device to which a glue roller position adjusting device according to an embodiment of the present invention is applied. The label sticking device 1 has three label sticking portions 5A and 5B arranged around the turntable 3 while turning and conveying the plurality of bottles 4 in the direction of arrow A by the turntable 3 provided on the base 2. In each of 5C, an appropriate label, for example, a shoulder label, a trunk label, and a back label are sequentially attached to the bottle 4. The label attaching portions 5A to 5C have basically the same configuration except that the labels to be attached are different. Hereinafter, these may be referred to as the label attaching portion 5.

  As shown in more detail in FIG. 2, each label affixing portion 5 faces the label magazine 6 that dispenses the labels L to be affixed to the bottle 4 one by one, and faces the label magazine 6 in the dispensing direction of the label L. Pallet table 7, a glue roller 8 disposed around the pallet table 7 at a distance from the label magazine 6, and a label carrier 9 for attaching the label L to the bottle 4. Yes. The pallet table 7, the glue roller 8, and the label carrier 9 rotate at the same peripheral speed in directions indicated by arrows in the drawing. A plurality of pallets 7a are provided on the outer periphery of the pallet table 7 at appropriate intervals in the circumferential direction. FIG. 2 shows only a part of the pallets 7a. Each pallet 7a can swing around a turning shaft 7b parallel to the central axis AX1 (see FIG. 1) of the pallet table 7.

  Around the glue roller 8, an adhesive supply pipe 10 for supplying the adhesive AD to the outer peripheral surface 8a of the glue roller 8 and a scraper 11 facing the outer peripheral surface 8a are provided. The adhesive AD supplied to the outer peripheral surface 8a of the glue roller 8 from the adhesive supply pipe 10 is removed by the front end portion 11a of the scraper 11, so that the front end portion 11a of the scraper 11 and the outer peripheral surface 8a It is leveled to a film thickness according to the gap amount between the two. Excess adhesive removed from the outer peripheral surface 8a of the glue roller 8 by the scraper 11 flows down below the glue roller 8 and is collected by a collecting device (not shown). In this way, a film of the adhesive AD is formed on the outer peripheral surface 8a of the glue roller 8, the adhesive AD is applied to the surface of the pallet 7a, and the label magazine 6 is applied to the pallet 7a to which the adhesive AD is applied. The label L is supplied from, and the adhesive AD is applied to the application surface of the label L. The label L to which the adhesive AD is applied is peeled off by a gripper (not shown) provided on the label carrier 9 and held by the gripper. The label L held by the gripper is placed on the turntable 3 (see FIG. 1). Attached to the bottle 4.

  As shown in FIG. 2, a position adjusting device 20 is installed below the glue roller 8. The position adjusting device 20 adjusts the distance between the pallet 7a and the glue roller 8. A top view of the position adjusting device 20 is shown in FIG. 3, and a side view thereof is shown in FIG. The position adjusting device 20 is attached to an installation table 21 as an installation unit adjacent to the pallet table 7. The position adjusting device 20 includes a base 22 as a support portion for supporting the glue roller 8, a fixing portion 23 fixed to the installation base 21, a reference member 24 fixed to the base 22 and serving as a reference for position measurement, and a fixing A dial gauge 25 is provided as a measuring means that is fixed to the portion 23 and measures the movement of the reference member 24.

  The base 22 is provided so as to be slidable relative to the installation base 21. A support member 26 that supports the support shaft 8 a of the glue roller 8 is fixed to the upper surface of the base 22. The base 22 and the support member 26 are fixed by screwing with bolts. A glue roller 8 is rotatably attached to the support shaft 8a. The base 22 is provided with a key groove 27 and fits with a key 28 provided on the installation base 21. The key 28 is fixed to the installation table 21 and has guide surfaces 28 a on both sides for guiding the movement of the base 22 along the radial direction of the pallet table 7. The guide surface 28a is provided in parallel to the moving direction D connecting the center axis AX1 of the pallet table 7 and the center axis AX2 of the glue roller 8. On the other hand, the key groove 27 is provided so that the slide surfaces 27a fitted to the guide surfaces 28a face each other, and a restriction surface 27b for restricting the movement of the key 28 at the front end portion and the rear end portion of the opposed slide surfaces 27a. It is provided at each of the front end portion and the rear end portion. The slide surface 27 a is longer than the guide surface 28 a of the key 28 in the radial direction of the pallet table 7. And since the regulation surface 27b is each provided in the front-end part and rear-end part of the slide surface 27a, the keyway 27 slides in the predetermined range with respect to the key 28. FIG. For this reason, the key 28 is provided with a contact surface 28b that contacts the regulating surface 27b of the key groove 27. The contact surface 28b of the key 28 and the regulating surface 27b of the key groove 27 are formed with curved surfaces having the same shape, but are not limited to this and may be planar. In this embodiment, a pair of key grooves 27 and keys 28 are provided at two locations on both sides of the support shaft 8 a of the glue roller 8 to guide the movement of the base 22.

  The fixing portion 23 is provided on the opposite side of the pallet table 7 with respect to the base 22, that is, on the near side. Screw holes 23 a and 23 b are provided in the fixing portion 23, and the fixing portion 23 is fixed to the installation base 21 with bolts. The fixing portion 23 is provided with an operation member 29 for sliding the base 22. The operation member 29 is provided with a bolt 29a as a feed screw that passes through the fixing portion 23 and fits into a screw groove 22a provided in the base 22, and an operation knob 29b that rotates the bolt 29a. The axial direction of the bolt 29a is parallel to the moving direction D, and the base 22 advances and retreats in the moving direction D when the bolt 29a rotates. A stem 25 a of the dial gauge 25 is fixed to the fixing portion 23. For this reason, the other end side 23c of the fixing portion 23 is provided with a through hole 23d for holding and fixing the stem 25a. The through hole 23d is provided with a cut 23e from the other end 23c, and the stem 25a is fixed to the fixing portion 23 by screwing a bolt into a screw hole 23f provided perpendicular to the cut surface. . The fixed dial gauge 25 measures the movement of the reference member 24 fixed to the base 22. The position of the glue roller 8 can be adjusted by measuring the minute displacement of the reference member 24 that moves with the movement of the base 22 when the probe 25b of the dial gauge 25 and the reference member 24 come into contact with each other. The performance of the dial gauge 25 is preferably one that can be measured in units of 10 [μm]. The dial gauge 25 may use various known techniques. The reference member 24 includes a bolt 24 a that contacts the probe 25 b of the dial gauge 25, and a T-shaped support member 24 b that fixes the bolt 24 a to the base 22. The upper surface portion 24c of the support member 24b is fixed to the side surface of the base 22 with a bolt, and the bolt 24a is fixed to the vicinity of the tip of the support portion 24d extending from the vicinity of the center of the upper surface portion 24c. The displacement due to the movement of the base 22 is measured when the tip surface 24e of the bolt 24a contacts the measuring element 25b.

  A procedure for using the position adjusting device 20 will be described. When the position of the glue roller 8 is adjusted, the operation member 29 is operated. By rotating the operation knob 29b, the bolt 29a rotates and the base 22 advances and retreats in the moving direction D (radial direction of the pallet table 7). Since the reference member 24 moves together with the base 22 and the displacement of the front end surface 24e of the bolt 24a is measured by the dial gauge 25, the amount of displacement can be known. At this time, the key groove 27 of the base 22 is fitted with the key 28, and the slide surface 27 a of the key groove 27 can slide in the movement direction D with respect to the guide surface 28 a of the key 28. Since the guide surface 28a and the slide surface 27a are fitted to each other, a lateral shift when the base 22 is moved is prevented. In particular, in adjusting the position of the glue roller 8, a dial gauge 25 is used to finely adjust the distance from the pallet 7a. Since the adjustment is performed with such a small displacement, if the lateral displacement occurs, the positional relationship is distorted. However, since the key 28 and the key groove 27 are fitted along the moving direction D, they are orthogonal to the moving direction D. It does not move in the direction of movement, and lateral displacement is prevented. Therefore, it is possible to easily adjust the position of the glue roller 8 attached to the support shaft 8a fixed to the base 22, and to prevent lateral displacement.

  The present invention is not limited to the above-described form and can be implemented in various forms. For example, in this embodiment, the dial gauge 25 is used as the measuring means, but the present invention is not limited to this. For example, various displacement sensors and displacement meters may be used. Various known techniques may be used instead of the dial gauge 25 as long as the displacement of the base 22 can be measured. Further, in this embodiment, the configuration in which the key 28 is provided on the installation base 21 and the key groove 27 is provided on the base 22 is described, but the present invention is not limited thereto. If the guide surface 28 a and the slide surface 27 a are provided along the radial direction of the pallet table 7, a configuration in which a key groove is provided in the installation table 21 and a key is provided in the base 22 may be adopted. .

DESCRIPTION OF SYMBOLS 1 Label sticking apparatus 5 Label sticking part 7 Pallet table 7a Pallet 8 Glue roller 20 Position adjustment apparatus 21 Installation stand (installation part)
22 Base (support)
27 Keyway 27a Slide surface 28 Key 28a Guide surface AD Adhesive AX1 Center axis

Claims (3)

A position adjusting device for adjusting a position of a glue roller for supplying an adhesive to each of a plurality of pallets provided along a circumferential direction of a pallet table rotatable around a central axis;
An installation portion on which the glue roller is installed; and a support portion that movably supports the glue roller with respect to the installation portion,
Either the installation part or the support part is provided with a key having a guide surface along the radial direction of the pallet table, and the other of the installation part or the support part is provided with the radial direction. A glue roller position adjusting device provided with a key groove that fits with the guide surface so as not to move in an orthogonal direction.   The position adjusting device according to claim 1, further comprising a feed screw disposed in parallel with the radial direction and screwed into the support portion.   The position adjustment apparatus according to claim 1, further comprising a measurement unit that measures the displacement of the support portion.

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