JPS6215459B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an electric adhesive that can obtain fixed length adhesive tape pieces fully automatically using a switch actuator that opens and closes using the adhesion properties of adhesive tape pieces and their peeling action. Regarding tape standard length cutter.

This is nothing but a combination of a switch that utilizes the adhesive force and a mechanism that smoothly feeds the adhesive tape, but it is able to skillfully handle the awkward adhesive tape and cut it to the desired length within a precise range. It is a simple electric automatic machine that can be used for cutting, but conventional adhesive tape cutters are slow and inefficient in operation. In the present invention, when a fixed length of adhesive tape is removed from the tape fixing base, this operation is used to start the related switch device, and the mechanism is operated by starting the electric power source to attach the next adhesive tape. The purpose is to provide a simple automatic machine that helps save labor when pieces come out.

The present invention will be described in detail with reference to embodiments shown in the drawings. As shown in the perspective views of FIG. 1, FIG. 2, and FIG. 5, there is a tape pressing piece 2 at the front tape outlet 1 that descends at an appropriate time, and is pivoted rearward to freely move. An adhesive tape fixing stand 3 was provided opposite to and below the tape pressing piece 2. As shown in the lower part of FIG. 5, this adhesive tape fixing stand 3 has a receiving part A in an inverted shape at the frontmost part, a narrow strip protrudes slightly like a counter stand, and a support shaft B at the rear. Below the tool, a cam slope E is formed, which is connected with appropriate recesses at low and high places, with a slope between each. These can be rotated slightly left and right.

The receiving part A that receives the adhesive tape T moves up and down, and the cam slope E part moves left and right. In other words, it rotates around the support shaft B, but if the rotation is small compared to the distance to the support shaft in each of the above-mentioned parts, it can be regarded as approximately oscillation. The cam slope E is elastically pressed by a roller actuator C attached to the switch 4, and is normally in the state shown by the solid line in FIG. The roller actuator C is shown in a state where the roller actuator C is seated in the recess on the slope of the cam slope E and the switch 4 is turned off.

In this example, the distance from the bottom of the slope to the top of the slope E is the so-called oscillation distance, and the roller actuator C
It is quite easy to realize that when the contact is pushed from the outside and the contact turns off, or when it is loosened and returned to the outside, the contact turns on. This switch operating device is
In this embodiment, the switch 4 was installed under the support shaft B, but it makes no difference whether it is installed in any position around the support shaft B, and the switch 4 does not oscillate due to the support shaft but slides up and down. It is okay to have a design that causes confusion.

That is, the gist of the present invention is that the switch can be activated by inducing oscillation in a certain direction by utilizing the adhesive force when peeling off the temporarily fixed adhesive tape T piece from the adhesive tape fixing base 3.

As shown in the drawings from FIG. 1 to FIG. 5, an adhesive tape fixing table 3 is fixed at the frontmost position by linking a switch 4 so as to be able to swing freely over a short distance. Behind it, the lower scissor blade 5 is attached to the blade guide part K of the upper scissor blade 9, which presses the blade tip backward with a spring 32 and descends from above, so that it can slide freely and the scissors blade can be operated, and the scissor arm 13 is attached. An upper scissor blade 9 was attached to the tip, and a tape pressing piece 2 was pivotally supported in front of the upper scissor blade 9 to the tool so that it could freely move up and down.

A tape straight drive wheel 6 is installed on a shaft behind the lower scissor blade 5, and a tape feed wheel 7 is installed on a shaft parallel to the rear of the tape straight drive wheel 6.
The tape straight moving wheel 6 has a shape in which a pair of cones are opened outward on both sides, and each cone falls from the outside toward the inside at an inclination of approximately 45 degrees, and the central portion is lowered to form a groove. In order to reduce the adhesive contact surface with the tape, the surfaces of the sloped portions on both sides were roughened by knurling or the like. The tape feed wheel 7 is shaped like a round rod and has a length that approximately matches the width of the adhesive tape to be used, and its outer periphery has a roughened surface with less adhesive contact surface. As the tape straightening wheel 6 rotates, the adhesive surface of the adhesive tape comes into contact with its upper surface and is fed, but in order to properly press this from above, a diamond-shaped pushing roller 8 is provided at the top. A Soroban bead shape is used to pivot the tape backwards in alignment with the concavity in the center of the opponent's adhesive tape straight-moving vehicle 6, and a U-shaped spring 30 is applied so that it can be temporarily stopped vertically, and it is pressed with light and appropriate pressure. It was designed so that it could be obtained. When the diamond-shaped pushing roller 8 is lifted upward with a fingertip, it springs up to the top and remains in that position, creating an appropriate space between it and the adhesive tape straight-moving roller 6 for replacing the tape. It has a simple mechanism. Gear (spur gear) 2 is installed in the adhesive tape straight drive wheel 6 and the tape feed wheel 7.
7 and 28 are fixed concentrically. In order to simultaneously transmit appropriate rotation below these gears, the drive gear 10 is fitted onto the fixed shaft 26 so as to be freely rotatable, meshing with both gears. This fixed shaft 26 is the base 3
The left frame 37 and the right frame 38, which are arranged in parallel on the top of the frame 6, are fixed to both walls in a bridging manner. In this embodiment, the drive gear 10 is connected to the gears 27 and 28.
The pitch circle of the drive gear 10 is larger than that of the second drive gear 10.
As shown in FIGS. 4 and 5, it is integral with the progressive wheel 11, that is, it is coaxially fitted onto the fixed shaft 26 and meshes with the gears 27 and 28, so that they can be rotated simultaneously. The gear 27 is directly connected to the tape feed wheel 7 and the gear 28 is directly connected to the tape linear drive wheel 6, respectively, and the rotation of the progressive wheel 11 becomes the rotation of the drive gear 10, which is connected to the drive gear 10 through the gears 27 and 28, respectively. The tape feeder 7 and the tape straighter 8 etc. are the second
As shown in FIG. 5, etc., they are arranged so as to rotate simultaneously. A cam 14 is installed immediately adjacent to the progressive vehicle 11.
A pulley 15 coaxial with the cam 14 is rotatably fitted on the same fixed shaft 26, and a belt 23 for transmitting the rotation from the motor 24 is hung on the pulley 15. A bent cam roller 12 rides on the scissor arm 13, and as the cam 14 rotates, the front part of the scissor arm 13 moves up and down about the rear fulcrum. In addition, the cam roller 12 is the spring 2
It is pressed onto the cam 14 by the tensile force of 9. A small shaft 1 that can be passed through as shown in FIG. 3 and FIG.
A checker 17 whose shaft center is appropriately shifted is fixed to one side of the small shaft 16 so as to be able to transmit rotation to the periphery of the progressive wheel 11 by wedge-shaped biting action. A small arm 21 having a small cam roller 20 at its tip is fixed to the other end, and a small U spring 31 is applied to the small cam roller 20. A rotatable adjustment cam 19 is connected to the fixed cam 1 so that the peripheral shape can be changed and adjusted as needed.
It was held at 8.

An upper limit switch 22 is connected to the upper limit of movement of the scissors arm 13, and wiring is provided so that the upper limit switch is energized and the motor 24 rotates while the scissors arm 13 is lowered. A motor 24 having an appropriate rotational speed is installed below the pulley 15 to transmit rotation thereof via a belt 23.

In the electric circuit in this embodiment, both the switch 4 and the upper limit switch 22 are closed when they are released;
It is a simple connection circuit that is open while being pressed, and both are connected in parallel to control the drive of the motor 24.

A tape inserting wheel 25 is disposed below the adhesive tape straight moving wheel 6 or the tape feeding wheel 7, etc. so that the adhesive tape roll rotates and the tape T is fed out. The tape outlet 1, the tape pressing piece 2, the tape fixing table 3, the tape straightening wheel 6, the tape feeding wheel 7, the upper scissor blade 9, the lower scissor blade 5, the diamond-shaped pressing roller 8, the tape insertion wheel 25, etc. are also on the same plane.
When the adhesive tape roll is inserted into the tape insertion wheel 25, it is important that its position be on the same plane of the delivery mechanism. In addition, the pushing arm 3 has a self-control roller 35 fitted with a self-control roller 35 having an appropriate valley-like slope at the tip or a self-control roller 35 with an appropriate step so as to be able to maintain the center even with adhesive tapes of several widths.
4 is elastically installed with an arm spring 33 so as to be tiltable left and right, and the self-control roller 35 is provided so as to be able to press against and separate from the tape insertion wheel 25.

Next, the actual operation will be explained one by one along with the operation. First, tilt the pusher arm 34, which is tiltable, to the left.
Insert the adhesive tape roll into the tape insertion wheel 25, return the pushing arm 34 to the right, and press the self-control roller 35 at the tip.
The necessary positioning of this tape is automatically determined by matching the inner width of the tape with the width of the tape. Next, if you lift the diamond-shaped pushing roller 8 upwards with your fingertips, it will stop in that position, and the adhesive tape straight moving wheel 6 and the tape feeding wheel 7 will be moved upward.
etc., so there is a gap between the adhesive tape T and the like.
When the tape is pulled out to an appropriate length and the end is inserted, placed on the bridge, and the roller 8 is lowered to its original position on the diamond-shaped pusher, the tape is squeezed and pushed. This completes the preparation.

First, connect the power supply. Then, the adhesive tape T, which is held between the tape straightening wheel 6 and the diamond-shaped pushing roller 8, immediately starts to protrude from the tape outlet 1, stops when it reaches a predetermined length, and is pushed from above, that is, the top of the scissor arm 13. The scissors blade 9 and the tape pressing piece 2 descend, and the adhesive tape T is cut between the lower scissor blade 5 and the upper scissor blade 9, and at the same time the adhesive tape piece is cut, the tape pressing piece 2 is cut.
is attached to the receiving part A of the adhesive tape fixing base 3, and since it is pressed, the plate arm F rotates slightly clockwise, and therefore moves from the position shown by the solid line in FIG. 1 to the position shown by the imaginary chain line. However, at this time, the roller of the roller actuator C attached to the switch 4 is pushed to the recess near the spindle B and stopped, but due to the rotation of the plate arm F, the roller of the cam slope E is changed. It moves upward from the support shaft B along the ascending slope to a recess further away and stops, and the roller actuator C is therefore pushed and the electric circuit of the switch 4 is cut off.

Next, when the piece of adhesive tape attached to the receiving part A of the adhesive tape fixing base 3 is peeled off with a fingertip, the switch 4 is activated as described above, the motor 24 is started, and the pulley 15 rotates.

FIG. 3 shows the positional relationship between the cam 14 and the scissor arm 13, as well as the small arm 21 non-return stopper 17 and both the fixed and adjustable cams 18 and 19 at the time of such startup.

When the pulley 15 rotates, the cam 14 naturally rotates at the same time, and both ends of the small shaft 16 held by the cam 14 form a small arm 2 having a checker 17 and a small cam roller 20.
The 1st class rotates uniformly. When the cam 14 starts to rotate to the left (counterclockwise) in FIG.
is on the verge of falling into the recess from the outer periphery of the fixed cam 18. As this rotation progresses, the small cam roller 20 falls into the recess of the fixed cam 18, and the small arm 21
is largely tilted toward the center shaft 26, and therefore the reverse stopper 17 also rotates to the left. Before the reverse checker 17 rotated to the left, there was a gap with the periphery of the progressive wheel 11, so it idled independently of this, but as described above, the reverse checker 17 rotated to the left. When rotated, the peripheries of both come into contact as described above, and the small diameter periphery of the reverse stopper 17 bites into the large diameter outer periphery of the progressive wheel 11 like a wedge and firmly attaches, so that the small cam roller 20 Fixed cam 18
The progressive wheel 11 closely follows the reverse stopper 17 while the small arm 21 falls into the freely adjustable recess between the cam and the adjusting cam 19 and is tilted greatly as described above. Therefore, the driving gear 10 which is integral with the progressive wheel 11 also rotates, and the two gears 27 and 28 linked to this driving gear 10 rotate clockwise at the same time, so that the tape linear driving wheel 6 and the tape feeding wheel 7 connected to each other rotate. rotate to the right in parallel. The adhesive tape T is then pulled out from the adhesive tape ring and fed out from the outlet 1 by the conveying roller group as described above.

In this way, the rotation of the progressive vehicle 11 progressed,
Next, when the small cam roller 20 encounters the ascending slope of the adjusting cam 19 and the small arm 21 returns to the front position from the large inclination, the checker 17 rotates back to its original position, so that the progressive wheel At this point, the adhesive tape T, which had been fed out from the tape outlet, naturally stops moving. At this time cam 1
Since the concave portion of No. 4 has advanced to a position just in front of the cam roller 12, when the advance of the adhesive tape T that has been fed out stops, the cam roller 12 immediately falls into the concave portion of the cam 14 (first The scissors arm 13 (shown by broken lines in the figure) descends together with the top upper scissors blade 9 and the tape pressing piece 2, and performs the scissor cutting operation as described above and the adhesive tape piece at the receiving part A of the tape fixing base 3.
Then, as the cam 14 rotates, the scissor arm 13 releases the cam roller 12 from its recess and returns to its original position, and the upper limit switch 22 is also cut off. The action ends.

When a piece of adhesive tape cut to an arbitrary length and stretched on the receiving part A of the adhesive tape fixing base 3 is peeled off during use, the peeling action is utilized to release the switch 4. The operation of the power intermittent mechanism, in which a replacement arbitrary piece is instantaneously brought out onto the fixing table, can be repeated. Also, the upper clamp push button 39
(shown in Fig. 2 and Fig. 5) is when you peel off the adhesive tape on the adhesive tape fixing base 3 while pressing this button.
The tape that comes out after that is not cut by the scissors and flows out from the tape outlet 1 in multiples of the fixed length until the push button is released. If it is too long, take it with your other hand, release the clamp push button 39, and it will be cut with scissors and fixed, so you can peel it off.

By suppressing the lowering of the scissors arm 13, the upper limit switch 22 will not break, and the adhesive tape T will not have a chance to be cut by the scissors, and will continue to come out from the tape outlet. As shown in FIG. 2, the clamp push button 39 is a clamp whose tip can be protruded and retracted when the scissor arm 13 is lowered by swinging, and is a simple device that is operated by a push button spring G and has a push button mechanism principle. be. The reason why the receiving part A in the adhesive tape fixing table 3 is made into a substantially inverted recess is not for the purpose of bending the tape, but to make the adhesive tape piece protrude as long as possible in front with a curved cross section and fix it. , has the effect of making it easier to remove with your fingertips,
Also, the adhesive side of the tape is weak against being peeled off sequentially from the edge, but strong against forces that act simultaneously in the direction of the adhesive surface, so consider the shape where the force acts simultaneously when peeling off. It is aimed at an advantageous effect.

As described above, the present invention takes advantage of the characteristics of adhesive tapes, which are difficult to handle, and makes it possible to easily control the stop and start of an electric power source. Further, the present invention can remove poorly processed adhesive tapes by using an adhesive tape straightening wheel 6 and a diamond-shaped pushing roller 8, each having a unique shape.
etc., and since it protrudes forward with a curved cross section, it is easy to remove even flexible tape with fingers, and it is possible to obtain long lengths of tape with a simple device. It is an electric cutter with a As soon as you remove it, a replacement will pop out.It is an extremely efficient automatic machine that can be operated easily and is useful for saving labor. It has a simple mechanism and is very easy to operate, making it economical and highly practical. Although it can be used with a general power source, it operates quietly and is easy to move.It is extremely effective when used for sealing envelopes or wrapping in general stores, department stores, supermarkets, etc.

[Brief explanation of the drawing]

FIG. 1 is a partial side view for explaining the switch operating device of the present invention and its related mechanical parts. FIG. 2 is a side view showing the inside excluding the side cover. FIG. 3 is a partial side view for explaining the operation and timing of a part of this mechanism. FIG. 4 is a front view showing the inside of the entire mechanism as seen from the rear. FIG. 5 is a perspective view of the entire mechanism of the present invention with some parts separated for easy understanding. 1... Tape outlet, 2... Tape pressing piece, 3...
...Adhesive tape fixing stand, 4...Switch, 5...Lower scissor blade, 6...Tape straight drive wheel, 7...Tape feeding wheel, 8...Rhombic pushing roller, 9...Upper scissor blade, 1
0... Drive gear, 11... Progressive wheel, 12... Cam roller, 13... Scissor arm, 14... Cam,
15...Pulley, 16...Small shaft, 17...Return checker, 18...Fixed cam, 19...Adjusting cam, 20
...Small cam roller, 21...Small arm, 22...
... Upper limit switch, 23 ... Belt, 24 ... Motor, 25 ... Tape insertion wheel, 26 ... Fixed shaft,
27... Gear, 28... Gear, 29... Spring, 30... U-shaped spring, 31... Small U-shaped spring,
32... Spring, 33... Arm spring, 34...
Push arm, 35... self-control roller, 36... base,
37...Left frame, 38...Right frame, 39...Clamp push button, A...Receptacle, B...Spindle, C...Roller actuator, D...Actuator, E
...Cam slope, F...Plate arm, G...Push button spring, K...Blade guide, T...Adhesive tape.

Claims (1)

[Claims] 1. A group of conveying rollers for the adhesive tape T, an adhesive tape cutting mechanism consisting of an upper scissor blade 9 and a lower scissor blade 5, a tape fixing table 3 for temporarily fixing the adhesive tape T, and the tape fixing table 3. an adhesive tape temporary fixing mechanism consisting of a tape pressing piece 2 for temporarily fixing the adhesive tape T; and a pulley 15 receiving power from a motor;
In the electric adhesive tape fixed length cutter comprising the adhesive tape cutting mechanism, a cam mechanism that operates the adhesive tape temporary fixing mechanism, and a power intermittent mechanism that transmits power to a group of conveying rollers only for a certain period of time, the tape fixing base 3 is An electric adhesive tape fixed length cutter, characterized in that power is connected when the adhesive tape T piece is lifted up by peeling it off, and power is turned off when the cutting mechanism returns to its initial position after activation. 2. In the electric adhesive tape fixed length cutter according to claim 1, the group of conveying rollers includes a tape feed wheel 7 that feeds out the adhesive tape from the adhesive tape ring, a conical tape straight-travel wheel 6, and the tape straight-travel wheel. A first gear 28 and a second gear 27 are provided on the shafts of the tape feeding wheel 7 and the tape straightening wheel 6, and a driving gear that simultaneously rotates both gears rotates in sequence. Transportation 1
An electric adhesive tape fixed length cutter characterized by being installed on the same axis as 1. 3. In the electric adhesive tape fixed length cutter according to claim 1, the cam mechanism includes a cam 14 coaxially with the pulley 15, and has a cam roller 12 that is in pressure contact with the cam 14, and is a scissor that swings. An electric adhesive tape fixed length cutter characterized in that an arm 13 is provided with the tape pressing piece 2 and an upper scissor blade 9. 4. In the electric adhesive tape fixed length cutter according to claim 1, the power intermittent mechanism includes the progressive wheel 11 connected to the transport roller group and the pulley 1.
5, a checker 1 that operates to bite into the periphery of the progressive wheel 11 to transmit the power of the pulley 15;
7, and a small cam roller 20 that presses against a curved surface formed by a fixed cam 18 and an adjusting cam 19 to operate the reverse stopper 17. 5. In the electric adhesive tape fixed length cutter according to claim 1, the plate arm F supports the tape fixing base 3.
turns ON when it swings, and when it returns to its original position.
An electric adhesive tape fixed length cutter that is equipped with a switch 4 that turns it off. 6. In the electric adhesive tape fixed length cutter according to claim 5, the scissor arm 13 equipped with the upper scissor blade 9 and the tape pressing piece 2 cuts the tape T when lowered and turned ON, and the tape is fixed. This electric adhesive tape fixed length cutter is characterized in that an upper limit switch 22 is provided in parallel with the switch 4, and is turned off when it returns to its original position after the operation of pressing the base 3 is completed.