JPH0326659A - Unwinding device for transfer tape - Google Patents

Abstract

PURPOSE: To facilitate handling by providing a spring loaded support plate with an overall delivery mechanism and arranging it in a casing so that it can revolve around a shaft on a casing floor furnished with a pin free to be engaged with and inserted in a clearance of teeth of a gears its center. CONSTITUTION: As a support plate 22 revolves in a direction of an arrow 29 around a shaft 23 as its center when a sticking roller 11 projected from a casing opening part 28 is made contact with an object, a pin 25 slides in a direction of an arrow 30 relatively against the support plate 22 and is released from a position to lock a gear 13. Consequently, each of sleeves connected to the gears 13, 14 is freely revolved with a stock reel 2 and an empty reel 4. In a state where a delivery device 7 or the sticking roller 11 is not loaded, a spring arm 26 supported on a stopper 27 pushes the support plate 22 back to a starting position in the opposite direction of the arrow 29, that is, the pin 25 is engaged with the inside of a tooth clearance of the gear 14, and the two gears 13 14 are made to stop rotating.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a feeding device for copper tape having double-sided adhesive tape. This feeding device has
A pay-out sleeve and a take-up sleeve, which are disposed within the casing and are transmission-coupled to each other via engageable and disengageable gears, also protrude from the casing and are paid out from a stock reel of the pay-out sleeve toward the take-up sleeve C. A freely rotating application roller is provided that guides the tape in a loop. BACKGROUND OF THE INVENTION According to DE 31 09 735 A1, a tape dispenser is known which has an exchangeable stock reel with adhesive tape on a dispensing sleeve arranged in a casing. There is. In this case, the feeding sleeve is integrated with the push button,
The pushbutton is slidably disposed within the casing and protrudes from a notch provided on the side of the casing under the force of a spring. On the side of the casing opposite to that on which the push button is provided, a window is formed with a tape pressure roll for applying the adhesive tape dispensed from the dispensing sleeve. When the adhesive tape is fed out from the stock reel of the feeding sleeve, the user of the device presses the push button against the force of the spring as a pre-punch, but the tape pressure roll It works together with the guide roll and tape deflection roll. While the tape deflection roll deflects the adhesive tape pulled from the stock reel, the tape pressure roll presses the non-adhesive side of the adhesive tape onto the support surface. In order to automatically unwind this type of adhesive tape, which is prevented from undesired rotational movement by a spring built into the unwinding sleeve, the deflection roll applies the adhesive tape at the same time as the push button is pressed. The tape is crimped onto the surface of the target object, and the starting end of the tape is fixed with adhesive. By moving the device in the opposite direction to the stock reel's lt1tI, a strip of adhesive tape of any length will be dispensed. The operation of separating the applied adhesive tape strip from the stock reel takes place via a rack located on the push button, which meshes with the teeth of a disc having knife edges on its periphery.

When the pushbutton is depressed, this disc and knife edge rotate in a clockwise direction, whereas when the pressure applied to the pushbutton is released, the disc and knife edge are rotated by a spring with a load-relieving effect. Moving in a counterclockwise direction, the knife edge reaches a position below the deflection roll and cuts the adhesive tape. Even ignoring such extremely complex and expensive cutting mechanisms, the above-mentioned known techniques still require considerable effort and expense and sufficient manual dexterity to install a new stock reel. ．． Moreover, in order to set a new stock reel on the payout sleeve, the adhesive tape strip must be manually peeled off from the stock reel and the tape starting end must be placed under the tape deflection roll prior to setting the new stock reel. This stock reel is then inserted onto the payout sleeve and secured against undesirable self-rotation by means of a spring which is pressed onto the stock reel through the payout sleeve from the inside by means of a projection. Another known payout device which can be closed by a cover is a matable one with a cover tape having a double-sided adhesive tape (hereinafter a cover tape with an adhesive tape is referred to as a transfer tape). The casing has a feed-out sleeve and a wind-up sleeve for the stock roller that can be replaced. Both sleeves are transmission-coupled by gears that mesh with each other. An applicator roller with a portion of its outer circumferential surface protruding from the side opening of the casing wall is located at a distance from both sleeves, and the transfer tape is wound around the applicator roller in a loop. When using a new stock reel with an inner axial slit for the axially outer web in the unwinding sleeve to create a friction-fit connection, the starting end of the tape is mounted around the application roller and the film is As with the Subur, it must be inserted into the slit in the winding sleeve. Furthermore, this adhesive tape must be manually removed from the beginning of the transfer tape before or after insertion. In this known feeding device, a brake lever is pivotably mounted on a shaft in the casing floor, which brake lever engages via a projection with a toothed wheel of the feeding sleeve. On the other hand, a push button (knob) protrudes from the casing opening. When this push button is pressed, the protrusion disengages from the gear of the delivery sleeve, thus unlocking or disengaging the sleeve. When the application roller is pressed onto the object to which the adhesive tape strip is to be applied, and at the same time the device itself is moved, the adhesive tape is peeled off from the cover tape and is wound onto the winding sleeve. When the push button is released, the protrusion engages between the teeth of the gear, so the feeding sleeve is locked.
The adhesive tape strip is separated. Therefore, when handling this equipment, great dexterity and manual dexterity are required when inserting a new stock reel, when threading the beginning of the tape, and when applying the adhesive tape strip by pressing down on the brake lever with your finger. It becomes the required two. (All that the invention seeks to solve) Therefore, the i*a of the present invention is to improve the conventional feeding device, which requires skill to operate, so that its handling can be easily achieved. It is at the point. Means for Solving the Problems The present invention proposed to solve the above problems is characterized in that the spring-loaded support plate has the entire payout mechanism, and the spring-loaded support plate has the entire payout mechanism. It is arranged in the casing so that it can pivot about the axis of the casing floor with a pin that can be locked and inserted into the casing. (Operations and Effects of the Invention) In the feeding device equipped with the support plate according to the present invention, it is possible to simultaneously use the pressure for pasting the adhesive tape to release the gear, and moreover, In that case, the second brake lever does not have to be used and, if necessary, does not even have to be pressed down additionally, since the support plate pivots around its pivot axis when the applicator roller is pressed down. , the pin that engages in the gear of the payout sleeve or the gear of the take-up sleeve is displaced relative to the support plate and brought into an engaged and disengaged position away from the gear. If so, it is advantageous for this pin to project into a slide-guide cutout in the support plate, in order to engage the pin in the tooth gap. The required free space is provided by this notch.Paste &:jl
While the pressure is maintained, the cover tape with double-sided adhesive tape can be unwound from the stock reel, and the cover tape peeled off from the adhesive tape can be wound onto the empty reel of the winding sleeve. When this pressure no longer acts, a spring, which is preferably constructed as a spring arm branching off from the support plate, automatically pivots the support plate back about an axis into its starting position. In this case, the pin, which is preferably wedge-shaped in the direction towards the gear wheel, engages in the tooth gap of the gear wheel so as to reach a position where it again prevents the reel movement. At the same time as this engagement, the adhesive tape is cut. An addition for the pressure spring can be achieved by configuring a spring arm integrally with the support plate, which can, for example, support a stop in the side wall of the casing or in the form of a vertical pin in the casing floor. This makes it unnecessary to provide guides and supporting parts. The support plate, which thus transitions into the applicator roller, ie is integral with the applicator roller, can receive all the parts of the payout device required inside the casing. It is advantageous if the introduction strip for the tape stock contained in the stock reel is non-contact and is fixed on an empty reel which can be inserted onto the winding sleeve. 'With this device, a spare set is obtained consisting of two reels, a stock reel and an empty reel, connected to each other by an introduction strip. This lead-in strip is preferably connected by adhesive to the empty reel and the tape beginning of the tape stock. When the stock reel is fitted onto the unwinding sleeve and the empty reel onto the winding sleeve The introduction strip automatically forms a loop that is wrapped around the application roller, eliminating the need for loading and threading requiring special manual dexterity. The cutting of the pieces is achieved in the same way as in per se known feeding devices by engaging a projection on the brake lever with a gear wheel on the feeding sleeve. The invention will be explained in more detail with reference to an exemplary embodiment. A stock reel 2 with a transfer table stock 1 is connected via an introduction strip 3 to an empty reel 4. The stock reel 2 as well as the empty reel 4 are connected in the radial direction. It has an axial web 5 that is recessed inward.Inside the casing 6 of the feeding device 7, a feeding sleeve 8 and a winding sleeve 9 are attached to the stock reel 2 and the empty reel 4 ( (Fig. 2).The payout sleeve 8 and the take-up sleeve 9 each have an axial notch 10 adapted to each axial web 5 of the stock reel 2 and the empty reel 4, so that the stock reel 2 and the empty reel 4, and during its rotation each reel 2, 4
Transmit rotational motion to. Since each axial web 5 is constructed with a different contour shape, it is impossible for both reels 2.4 to be used incorrectly, either visually or functionally. In other words, the stock reel 2 is configured to fit only into the feed-out sleeve 8, and the empty reel 4 is configured to fit only into the take-up sleeve 9. FIG. 2 shows each sleeve 8. in a known feeding device k.
Reel 2.4 is shown fitted on top of 9. The introduction strip 3 is wound in a loop around the applicator roller 11, and the applicator roller 1l is applied to an object (not shown) for transferring the adhesive tape strip or film. Each sleeve 8.9 has a respective gear 13 on its side facing the casing floor 12.
, 14, and these gears 13, 14 are transmission coupled to each other via an intermediate pinion 15. A brake lever l7, which is pivotably supported on an axle 16 provided in the housing floor 12, engages via its projection l8 in the gearwheel 14 of the feed-out sleeve 8 and its part formed as a push-button 19. It protrudes laterally from the casing 6. Furthermore, the webbing 20 of the brake lever 17 is in contact with the winding sleeve 9. When the application roller 11 is applied to the object to which the tape is to be applied and the push button 19 is pressed, the brake lever 17 is moved to the shaft 16.
At this time, the protrusion 18 is separated from the gear 14 of the feeding sleeve 8. When the push button 19 is pressed simultaneously and the payout device 7 is moved in the direction of the arrow 21, the transfer tape is paid out from the stock reel 2 and the adhesive tape is applied by the application roller 11 onto the object to be applied with the adhesive tape strip. It will be pasted. The rotational movement of the payout sleeve 8 with the stock reel 2 is transmitted via the gear 14 and the intermediate pinion 15 to the winding sleeve 9, so that the non-adhesive cover tape from which the double-sided adhesive tape has been removed after application is captured on empty reel 4 at the same time. When the push button 19 is released, the brake lever 17
Cutting of the adhesive tape strip takes place as the protrusion 18 immediately engages within the gear 14 and prevents rotational movement. In the embodiment of the unwinding device 7 according to the invention shown in FIG. , and continues to the applicator roller 11 without a transition part. In other words, the support plate 22 is integrated with the application roller 11. It should be noted that in FIG. 3, for clarity, the drawing sleeve 8 and the winding sleeve 9 are omitted, and the mutually meshing gears 13 belonging to each sleeve are shown.
．． Only 14 are shown. *The so-called "double reel strip J" shown in Fig. 1 consists of a table stock 1 of a stock reel 2 connected to an empty reel 4 by an introduction strip 3, and a support plate according to the present invention (see Fig. 2). ), this tape stock 1
Each sleeve 8.9 is supported on the casing floor 12.
After being inserted into the feeding device 7, it will necessarily be located on the tension support plate 22. A pin 25 is fixed to the casing floor 12, and this pin 25 can be locked in the teeth of the gear 13. If the support plate 22 is designed as a member with a surface large enough to cover the pins 25, this support plate 22 is further provided with a slide-guiding cutout 24, in which case it can be fixed to the casing floor 12. The pin 25, which is wedge-shaped in the direction of the gear 13, necessarily projects into this notch 24 (see FIG. 4). A spring arm 26 formed integrally with the support plate 22 is supported by a stopper 27. Pasting roller l1 protruding from the casing opening 28
When the support plate 22 is brought into contact with an object (not shown), the support plate 22 pivots in the direction of the arrow 29 about the shaft 23, so that the pin 25 moves in the direction of the arrow 3 relative to the support plate 22.
Slide in the 0 direction to release the gear 13 from the locking position. Each sleeve 8.9 connected to the gear 13.14 can thus freely rotate together with the stock reel 2 and the empty reel 4. When the feeding device Wl7 to the pasting roller 1l are not attached, the spring arm 26 supported by the stopper 27 pushes the support plate 22 back to the starting position in the direction opposite to the arrow 29, and as a result the pin 25
is engaged in the tooth gap of the gear 14, so that the two gears 1
3. At the same time that 14 is rendered unrotatable, the adhesive tape strip is cut off from the cover tape. The support plate 22, which receives the entire unwinding mechanism and is pivotable about the shaft 23, makes it possible to simultaneously make available the pressure necessary for applying the adhesive tape for the release of the gear wheels 13, 14, and in this case also to apply an additional pressure. There is no need to provide a brake lever. This is because when the applicator roller 11 integrally formed with the support plate 22 is pressed onto an object, the support plate 22 is shifted in the direction of the arrow 29 and the gear 13 moves away from the pin 25. This is because it no longer engages within the gear 13 and prevents its movement. Furthermore, the handling of the feeding device 7 according to the invention is further facilitated by the stock reel 2 and the empty reel 4 connected to each other, which serve as spares. These reels 2.4 need only be fitted onto the sleeve 8.9 without any complicated insertion operations, with the introduction strip connecting these reels 2.4 being removed. 3 automatically forms a loop that is hooked onto the pasting roller 11.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a tape stock connected to an empty reel by an introduction strip in a stock reel for a transfer tape according to the present invention, and FIG. 2 shows a double reel according to the present invention shown in FIG. FIG. 3 is a plan view showing the interior of the casing of a known dispensing device according to the present invention, and FIG.
The figure shows a plan view of a further embodiment of the payout device according to the invention, which has a relatively large-area support plate with slide-guide recesses for the casing pins. 1-} Transfer table stock, 2... Stock reel, 3... Introduction strip, 4... Empty reel, 5...
... reel axial web, 6... casing, 7.
... Feeding device, 8... Feeding sleeve, 9... Winding sleeve, 10-... Axial notch of sleeve, 11
...Application roller, 12-...Casing floor, 13...
- Gear of winding sleeve, 14... Gear of feeding sleeve, 15... Intermediate binion, 16... Shaft of casing floor, 17-... Brake lever, l8... Protrusion of brake lever, 19- ...Brake lever push button, 20...
Brake lever web, 2 1 --- arrow indicating the direction of movement of the feeding device, 2 2 --- support plate, 23.
...Axis of the casing floor, 2 4 ... A slide guide-shaped notch provided in the support plate, 25 ... A pin fixed to the casing floor, 2 6 - ... Spring arm, 2 7
...Stopper, 28...Casing opening, 29.
. . . Arrow indicating the direction of rotation of the support plate; 30 . . . Arrow indicating the sliding direction of the pin 25.

Claims (6)

[Claims] (1) A payout device for a cover tape having a double-sided adhesive tape, in which a payout sleeve and a winding sleeve are electrically connected to each other via an engageable and disengageable gear disposed in a casing. Spring-loaded products that are equipped with a sleeve and a freely rotating application roller that protrudes from the casing and winds and guides the tape in a loop as it is fed out from the stock reel of the feeding sleeve toward the take-up sleeve. The shaft 23 of the casing floor 12 is provided with a support plate 22 which has the entire unwinding mechanism and is also provided with a pin 25 which can be inserted lockingly into the tooth gap of the gearwheel 13.
A feeding device characterized in that it is arranged within a casing 6 so as to be able to make a pivoting movement around . (2) The feeding device according to claim 1, wherein the pin 25 is disposed within a slide guide-shaped notch 24 provided in the support plate 22. (3) The feeding device according to claim 1 or 2, wherein the pin 25 is formed in a wedge shape in the direction toward the gear 13. (4) The feeding device according to any one of claims 1 to 3, further comprising a spring arm 26 branching from the support plate 22. (5) Tape stock 1 stored in stock reel 2
5. A device according to claim 1, characterized in that the introduction strip (3) is fixed to an empty reel (4) which can be fitted onto a winding sleeve (9). (6) The feeding device according to any one of claims 1 to 5, wherein a non-adhesive introduction strip 3 is provided.