JPH0651542B2 - Automatic label transfer turret rewinding assembly - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method and an apparatus for winding a reel material around a core. More particularly, this invention relates to an assembly that fits on a mandrel and wraps a web of predetermined length around an elastic core that is removed from the mandrel. The present invention is effective in manufacturing labels in the printing industry.

In the manufacture of labels after printing, it is necessary to rewind the reel of the label transfer web that carries a large quantity of labels onto a small roller of a precise quantity of labels. In actual production, rewinding the label requires about twice as much time and labor as in the case of initial production or printing of the label.

The present invention is a method of transferring reels of large labels to small rollers or cores with excellent accuracy (ie, a specific number of labels per roll) and the total number of personnel required for the current label rewinding process is 1/4 or less. And a device.

The automatic label transfer turret rewinding device of the present invention is basically a rotatable base plate having a number of protruding mandrels or spindles that are pivotally supported for rotation in a base and receive and rotate a take-up spool. Is. Each spindle is powered by a drive mechanism behind the rotatable base plate. The counter controls the cutting mechanism to place exactly the correct number of labels on each spool. In addition, an alarm system provides an audible signal when the spool does not disengage by the time the spindle rotates to a particular position.

[Prior Art] The following patents serve as materials for considering the present invention. U.S. Pat. No. 4,055,313 to Yamaguchi, entitled "A device for exchanging rewound rolls for roll slitting and rewinding devices," discloses cutting wide webs into a large number of narrow webs. 2 shows a slitter and a rewinding device for winding a roll on a large number of rolls.

Seelinger US Pat. No. 4,596,505, entitled "Automatic Loader and Unloader for Slitters", teaches a vertical web slitter and also teaches two pairs of turret type spindles 20, 21, 22, 23. To do.

U.S. Pat. No. 4,518,126 to Marshall, referred to as the "winding mechanism," shows a winding mechanism that controls a strand or web.

U.S. Pat. No. 4,651,865 for a cover called "coil unloading device" shows a number of mandrels, but these mandrels are for textile systems. Mandrels seem to be driven individually.

Cooper's U.S. Pat. No. 4,416,426, referred to as a "web processor", shows a rotatable turret with four mandrels indexing various positions.

Gray's U.S. Pat. No. 1,040,188, referred to as the "Automatic Take-Up Device", shows an automatic take-up device with multiple spindles from the beginning.

Nicholas U.S. Pat. No. 1,484,842, referred to as "slitting and rewinding device", shows another rewinding device including a slitting function.

SUMMARY OF THE INVENTION The present invention is provided with a frame, a rotatable plate attached to the frame, and a drive pulley at one end,
A plurality of mandrels having opposite ends supporting a core for receiving a web, the plurality of mandrels being rotatably mounted on the plate at predetermined intervals and extending horizontally from the plate, the axis of which is A mandrel arranged so as to be equidistant from the central axis and in which the drive pulley is arranged on the opposite side of the rotatable plate from the supporting end of the core; Driving means for driving a small number of mandrels and for engaging and disengaging the mandrels with respect to the driving force when entering and leaving the predetermined position, adapted to engage at least two of the mandrel drive sheaves And a drive means, including a driven belt, for rewinding web material.

Also, cutting means may be further provided for cutting the web, the cutting means being mounted on the frame, wherein at least one of the mandrels has a core for receiving the web and for applying an adhesive to the core. The coating means may be further provided on the frame, and the moving means may move the coating means laterally so as to engage with the core on the mandrel or move away from the core.

Further, it may further comprise a determining means for determining the amount of the web on the core and a controlling means for controlling the cutting means in response to a signal from the determining means, and fixed to the frame and horizontally. Further extending a track, whereby the cutting means includes a cutting blade assembly arranged for horizontal movement on the track, and further horizontally moving the cutting blade assembly along the frame. Exercise means may be provided.

Preferably, the moving means is a solenoid operated air cylinder connected to the cutting blade assembly and the frame, and further comprises means for moving the cutting blade to pass through the web.

A solenoid-operated air cylinder connected to the cutting blade may be further provided, and a track connected to the frame may be further provided, and the coating means may be attached to the track and reciprocate on the track. Is also good.

It may further comprise an air cylinder for moving the applying means along the track, the applying means moving the adhesive containing container, the applicator roller mounted on the container and the applicator roller laterally. Means for engaging and disengaging the core on the mandrel.

It may further comprise a lower carrier roll mounted for rotation in the container and partially submerged in the adhesive in the container and in contact with the applicator roller to apply the adhesive to the applicator roller. Further, a detector may be provided on the frame for determining the presence of the web on the mandrel.

The detector comprises a photovoltaic cell and a reflector, the beam of the photovoltaic cell being directed toward and away from a mandrel without a core so as to strike a core supported by the mandrel. It may be in close proximity and may further comprise an audible alarm activated by the signal generated by the detector.

A second aspect of the present invention is an apparatus for holding a coil tube having an elastic surface with respect to a mandrel, wherein the mandrel has a longitudinal flat surface, and includes a pair of semi-circular tube insert body parts, Each of the pieces has a biased central cut, and when the corresponding semi-circular pieces are mated, the cut forms a round hole through which the mandrel can enter, so that the mandrel rotates and becomes completely round. It is a device for forming a portion that engages with the inside of the coil tube at the end position of each of the above-mentioned pieces when the center is set to the.

Further, an annular groove provided around each of the pieces may be further provided with an elastic fixing tool located in the groove for fitting a pair of the pieces, and a second pair of parts to be combined. Pieces may further be provided, each pair located near both ends of the tube.

Further, a piece connector attached to the opposite piece may be further provided, and the piece connector may be a rod.

Still further, according to a third aspect of the present invention, a plurality of mandrels at predetermined intervals are mounted around a rotatable plate, a web receiving core is disposed on at least one mandrel, and the rotatable plate is provided with a support end of the core. Placing drive sheaves on each mandrel on the opposite side, starting rotation of the core by applying a drive belt adapted to engage at least two of the drive sheaves, applying a mounting material to the core, and Positioning the plate to place the adhesive core in a position to receive the web, cutting the web to bring the free end of the web into contact with the adhesive core, and adjoining the mandrel. While applying the adhesive to the upper core, accumulate the desired amount of the web on the core, cut the web, position the plate in the core removal position, finish the rotation of the core, Ma From Dorell is a method of rewinding a web of removing the core that is full of the web.

As described above, according to the present invention, since the end of the drive pulley of each middrel is arranged on the opposite side of the rotatable plate from the end supporting the core for receiving the web, a complete work is performed for the operator. be able to. For example, an operator can easily repair the core even when the drive pulley is rotating at high speed.

Also according to the invention, the mandrel is driven by a drive belt adapted to engage at least two of the drive sheaves, so there is no need to provide a drive means for each mandrel, simplifying the drive means. Can be achieved.

Further, according to the present invention, since the means for applying the adhesive is movable, it is possible to control so that the adhesive is adhered in an appropriate amount.

Further, the detector according to the present invention is used to detect whether or not the mandrel has a core, and when the mandrel does not have the core, move the mandrel from a position such as bonding or cutting.

Further, according to the second aspect of the present invention, since the core is formed in a pair of semicircles, the grip on the drive belt is good,
Can be easily removed from the mandrel.

This invention has a number of core supporting mandrels protruding from one side of a plate or disc, each pivotally supported in a bearing within the disc and having a drive pulley at the other end. It is an automatic label transfer turret rewinding device composed of a large disc. Two or three mandrel drive sheaves engage the drive belt at any time, the remaining sheaves are not driven and are in the "idling" state. A bonding unit is movable with respect to the mandrel core and has cooperating cutting blades or knives. The gluing unit then retracts and a knife blade passes through the area between the two cores on the adjacent mandrels, cuts the web, if any, and urges the web to the newly glued core. To do. The turret is positioned at the new position. The label on the web is wrapped around the core and the process is repeated until the core is filled with the desired number of labels. After positioning to the idler position, the wound core is manually removed and the empty core is placed on the mandrel. Each core has a partial friction core holder by which the core is gripped as the mandrel rotates and a simple manual operation by the operator releases this grip on the mandrel.

OBJECT OF THE INVENTION The main object of the present invention is to provide a method of rewinding a label-supporting web into a small roll or core with very high precision but with minimum personnel.

Another object of the present invention is to provide a method of rotating a mandrel mounted in a turret manner on a rotating plate only when the mandrel is in a predetermined position.

It is also an object of the present invention to provide an apparatus for rewinding a web of material such as a label support web that is complete and easy to handle.

Another object of the present invention is to provide a means for securely holding the core on the mandrel, yet easy to remove.

Examples The foregoing objects will be readily apparent from the following detailed description and the accompanying drawings.

Referring to FIG. 1, a large disc 10 is mounted for rotation on a frame or base 12 about an axis 13. The disc 10 has eight label rubbing mandrels or spindles 14, all of which project from one side of the disc 10 and are driven from the other side.

Each mandrel 14 having a longitudinal flat surface 16 is
Holds a core 18, typically made of cardboard, fiberboard, vinyl, plastic or other elastic material. The core 18 is held to the mandrel 14 by a pair of semi-circular plate-shaped pieces 20, 22 having slightly offset respective centers 24, 26. Each plate-shaped piece 20 is the same as the plate-shaped piece 22 but is inverted when assembled. Mandrel 14
Has a pair of longitudinal flat surfaces 16, as shown in FIG. 3, and is assembled so as not to rotate with respect to the biased center. Each piece 20, 22 has an elastic band or O-ring 32 so that it can be held together with the mating pieces.
It is preferable to have an annular outer groove 30 that accommodates.

The back side of the turret rewind base 12 has drive means including a motor driven sheave 36 and a drive sheave structure in which a drive belt 38 engages only two or three mandrel drive sheaves 40 at any given time. Prepare (see FIG. 2). Idler pulleys 42 are provided to create proper tension in the belt 38 and in the driven position an appropriate drive angle of the belt 38 for each pulley 40.

The adhesive unit 44 includes an adhesive container or tank 46,
It includes an applicator roller 48 mounted in the vat such that a portion of the roller extends into the adhesive in the vat, and means for laterally moving the adhesive unit to disengage from the core 18 on the spindle. The adhesive unit is mounted on a track 50 connected to the base 12, and is reciprocated along the track by an air cylinder (not shown). The adhesive unit may carry a lower adhesive carrier roll 52, a portion of which is submerged in the adhesive in the bath 46 and in contact with the applicator roller 48, which causes the adhesive to transfer the adhesive to the applicator roller 48. And thus the diameter of the applicator roller is smaller than that required to extend into the adhesive in the bath. Further, the use of this carrier roll 52 prevents excess adhesive from being applied to the applicator roller and core.

The web cutting assembly 56 including the cutting blades 58 includes the frame 12
It is mounted on a truck 60 fixed to and moves horizontally.
A solenoid actuated pneumatic cylinder 62 is connected to this assembly for horizontal movement along track 60. Another solenoid operated air cylinder controls the vertical movement of the blade. The cutting assembly includes a web guide roll 66 that controls the angle and path of the web as it is cut. If desired, the blade 58 can be set to cut at angles up to 45 ° from vertical.

The positioning of the mandrel containing each core to the next position is automatically controlled. A counter may be provided to accurately count the number of labels on the core so that when the predetermined number is reached, the cutting assembly and blades are actuated to rotate the disc in the new orientation and rotate the mandrel. To the next position and actuate the adhesive unit to generate a signal to apply adhesive to the newly positioned core in the preliminary position.

The detector with the photocell 70 is focused at the position indicated by the reflector 72 and the detector beam is adjusted to just off the mandrel if the mandrel has no core. The detector has an audible alarm, which also controls an emergency stop, and the label or web receiving roll is further activated by the turret device until it can be disengaged from the mandrel at the focused position shown at 75. Prevent positioning.

In operation, the core 18 is placed on the mandrel 14 before the mandrel is positioned at the web accumulation location. As the core approaches position 18A, the drive sheave 40 associated with the mandrel engages the drive belt 38 so that the mandrel begins to rotate. After the core reaches the position indicated by 18A, the adhesive unit moves horizontally, the applicator roller 48 contacts the core for one revolution of the core, and the applicator applies the adhesive for one revolution of the core. , The exact time of its application is computer controlled. The adhesive unit retracts. When the working core is filled, the cutting unit moves forward, cuts the label containing web, the turret is positioned, and the adhesive unit applies adhesive to the next core.

The action of lowering the blade and cutting the web actually acts to push the web down against the adhesive coated core, and immediately after retraction of the blade, the core has already accumulated label. After that, the turret 10 is positioned at the next station, that is, the disc rotates 1/8 of a turn. The core 18 full of labels is removed after the turret has been repositioned twice, the drive sheave corresponding to the mandrel holding the core no longer engages the drive belt 38 and the mandrel no longer rotates. The empty core is pivoting before the adhesive is applied and is pivoting while the label is full. The core can then be removed upon positioning to the next station.

The extended flat side of each mandrel conforms to the two semi-disc shaped pieces for the core when they are biased to form a non-circular center gap. As the spindle 14 pivots in the actuating direction, it exerts a force on the separate centers of the plate-like pieces, tending to give them a rounded shape rather than the slightly offset two semi-circles. This opposite pressure on the core releases the external force from the mandrel, which allows the core to easily disengage from the mandrel.

Rewinders typically take twice as long as the original winder. For label applicators such as portable label applicators, rewinders are used to rewind large rollers onto small, easily handled rollers. Using this invention, the number of rewinding workers required for at least a few people is reduced, along with a dramatic reduction in label production costs.

Alternatively, the semi-disc shaped piece could be wider than shown, so that only one pair of pieces would be needed to support the core. When two pairs of pieces are used, opposing pairs can be connected by a spacer 80 as shown in FIG. 3 or a pair of spacers 82 such as a dowel rod. A safety guard 86 may be provided to prevent the cutting blade from contacting any person.

[Effect] From the above, a method and a device for rewinding a label supporting web on a small roller or core with a very high precision and a minimum effective total number of persons, and a turret attached on a rotating plate when in a predetermined position. It will be readily apparent that a method of rotating only selected mandrels of the mandrels was invented. It provides a means for securely holding the core on the mandrel, but for easy removal and a device for rewinding a web of material such as a label-supporting web that is safe and easy to handle. Although the preferred embodiment of the present invention has been described, it should be understood that the present invention is not limited to this embodiment, and any modification within the scope of the claims is included in the present invention.

[Brief description of drawings]

FIG. 1 is a front view of an automatic label transfer turret rewinding assembly. FIG. 2 is a back view of the automatic label transfer turret rewinding assembly. FIG. 3 is an end view of the friction core holder in the operating position, showing two variants of the connecting means of the core holder part. FIG. 4 is a perspective view of the friction core holder in the inoperative position. FIG. 5 is a perspective view of the mandrel according to the present invention. 10 ... Disc, 12 ... Base (frame) 14 ... Label friction mandrel or spindle 16 ... Long flat surface, 18 ... Core 20, 22 ... One pair of semi-circular plate-like pieces 36 ... Motor Drive pulley, 38 ... Drive belt 40 ... Mandrel drive pulley 44 ... Adhesive unit, 46 ... Adhesive container 48 ... Applicator roller 50 ... Track 52 ... Lower adhesive carrier roller 56 ... Web cutting Assembly 58 ... Cutting blade, 60 ... Track 62, 64 ... Solenoid air cylinder 66 ... Web guide roller 70 ... Photocell, 72 ... Reflector

Claims (21)

[Claims] 1. A frame, a rotatable plate attached to the frame, and a plurality of mandrels provided with a drive pulley at one end thereof, the other end supporting a core for receiving a web. , The plurality of mandrels are rotatably attached to the plate at predetermined intervals, extend horizontally from the plate, and are arranged such that their axes are equidistant from the central axis of the plate, and the drive pulley is the core. A mandrel arranged on the opposite side of the rotatable plate from the supporting end of the mandrel, driving a mandrel of a smaller number than all located at a predetermined position with respect to the frame, and intruding into and separating from the predetermined position Drive means for engaging and disengaging the mandrel with respect to a driving force when the drive handle comprises a drive belt adapted to engage at least two of the mandrel drive sheaves. When a device rewinding the web material with. 2. The apparatus of claim 1 further comprising cutting means mounted on the frame for cutting the web. 3. At least one of the mandrels has a core for receiving a web, and applying means arranged on the frame for applying an adhesive to the core, and the applying means on the mandrel. The apparatus of claim 1 further comprising moving means for laterally moving to engage and disengage the core. 4. The method according to claim 1, further comprising a determining means for determining the amount of the web on the core, and a control means for controlling the cutting means in response to a signal from the determining means.
The device according to the item. 5. The frame further comprises a horizontally extending track, whereby the cutting means comprises a cutting blade assembly arranged for horizontal movement on the track, the frame further comprising: 3. An apparatus according to claim 2 including movement means for horizontally moving the cutting blade assembly along the same. 6. The apparatus of claim 5 wherein said motion means is a solenoid operated pneumatic cylinder connected to the cutting blade assembly and said frame. 7. The apparatus of claim 2 further comprising means for moving a cutting blade past the web. 8. The apparatus of claim 7 further comprising a solenoid operated air cylinder connected to the cutting blade. 9. The apparatus according to claim 3, further comprising a track connected to the frame, wherein the coating means is mounted on the track and reciprocates on the track. 10. The invention according to claim 9, further comprising an air cylinder for moving said coating means along said track.
The device according to the item. 11. The coating means comprises an adhesive container, an applicator roller mounted on the container, and means for laterally moving the applicator roller to engage and disengage the core on the mandrel. The device according to claim 3, 12. Mounted to rotate within the container,
12. The apparatus of claim 11 further comprising a lower carrier roll that partially sinks to the adhesive in the container and contacts the applicator roller to apply the adhesive to the applicator roller. 13. The apparatus of claim 1 further comprising a detector mounted on the frame for determining the presence of a web on the mandrel. 14. The detector comprises a photovoltaic cell and a reflector, the beam of the photovoltaic cell being directed toward and away from a mandrel without a core to a core supported by the mandrel. 14. A device according to claim 13 which is sufficiently close to hit. 15. The invention of claim 1 further comprising an audible alarm activated by the signal generated by said detector.
The apparatus according to item 4. 16. A device for holding a coil tube having an elastic surface against a mandrel, wherein the mandrel has a longitudinal flat surface and comprises a pair of semi-circular tube insert body pieces, the semi-circular piece Each has a biased central cut, and when the corresponding semi-circular pieces are mated, the cut forms a round hole through which the mandrel can enter, and the mandrel is rotated so that it is perfectly rounded. When you bring it
A device for forming a position at an end position of each of the pieces to engage with the inside of the coil tube. 17. The method according to claim 16, further comprising an annular groove provided around each of the pieces and an elastic fixing member located in the groove for fitting a pair of the pieces. apparatus. 18. The apparatus of claim 16 further comprising a second pair of mating pieces, each pair located near opposite ends of the tube. 19. The apparatus of claim 18 further comprising a piece connector attached to the opposite piece. 20. The device of claim 19 wherein said piece connector is a rod. 21. A plurality of regularly spaced mandrels are mounted around a rotatable plate, a web receiving core is disposed on at least one mandrel, and driven from a support end of the core to the opposite side of the rotatable plate. Place a pulley on each mandrel,
A drive belt adapted to engage at least two of the drive sheaves initiates rotation of the core, applies mounting material to the core, and attaches the core with the adhesive,
Position the plate to place it in a position to receive the web, cut the web to bring the free end of the web into contact with the core with the adhesive, and apply the adhesive to the core on the adjacent mandrel. While accumulating the desired amount of the web on the core, cutting the web, positioning the plate at the core removal position, ending the rotation of the core, and filling the web from the mandrel. How to rewind the web.