JP4360668B2 - Tape cutting device and cardboard box making device using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tape cutting device used when, for example, attaching an adhesive tape to a workpiece for cutting, and a cardboard box making apparatus using the same.
[0002]
[Prior art]
Conventionally, in a tape cutting device used in a cardboard box manufacturing device, a pair of opposing flaps of a cardboard box are butted together, and an adhesive tape is pasted along the abutting sides of both flaps, and then the adhesive tape is pushed and cut with a cutter. (See Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-207243
[0004]
[Problems to be solved by the invention]
In general, in a tape cutting device that pushes and cuts adhesive tape, a cutter with a saw blade shape is used frequently to ensure that the cutter blade bites into the tape surface, and the adhesive cut with the saw blade cutter is used. The cut end of the tape is corrugated. For this reason, when the adhesive tape is peeled off, if the adhesive tape is turned up from the corner of the cut end, a vertical tear may occur from the trough of the corrugated cut, and the entire adhesive tape may not be peeled off at once. It was.
[0005]
In order to reduce such problems so that the adhesive tape can be peeled off, it is only necessary to cut the adhesive tape in a straight line, but in order to cut the adhesive tape by pressing, the blade edge of the cutter is inclined, It is necessary to cut the adhesive tape from the side edge. However, according to this, when cutting while the tape is moving, the tape cut end tends to be inclined, the linear cutting accuracy is poor, and the appearance tends to be poor.
[0006]
In addition, it is conceivable to run the rotary round blade across the tape width direction to cut the tape in a straight line, but in this case as well, if the tape is moving, the cross-travel speed of the rotary round blade must be made very fast. The linear cutting accuracy is high, and it is difficult to cut the appearance, and there are practical problems.
[0007]
This invention is made | formed in view of such a situation, Comprising: It aims at providing the tape cutting device which can cut an adhesive tape straightly in an instant, although it is a push cut form.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has the following configuration.
[0009]
The invention according to claim 1 is a tape cutting device that cuts a tape with a rotating round blade, and is provided at the tip of an arm that can swing over a standby position and a tape cutting action position. 2 sheets The rotating round blade Align and deploy in the tape width direction Cutter holding Element And holding the cutter Element The rotary round blade held rotatably is stored in the standby position, and is moved away from the cutter holding means as the arm swings, so that the tip of the rotary round blade protrudes at the tape cutting position. Element The cutter is held in conjunction with arm swinging. Element And movable With parts Relative separation movement As the driving force , 2 of the above Rotating round blade In the opposite tape width direction The taper is cut by protruding the blade edge from the movable member while being driven to rotate.
[0010]
(Operation / Effect) According to the first aspect of the invention, the rotating round blade is pressed against the adhesive tape by swinging the arm in the direction approaching the adhesive tape, and the adhesive tape starts from the most advanced point of the arc cutting edge. The adhesive tape is cut in a straight line by starting to bite into the tape and encroaching greatly while the rotating round blade rotates.
[0011]
Therefore, even if the adhesive tape is moving, it can be cut straightly in an instant while taking the push-off form, and even when the adhesive tape is moving, the adhesive tape can be cut with good appearance and accuracy.
[0013]
further, The rotating round blade starts to bite into the tape at a plurality of points, and the tape can be cut smoothly and promptly.
[0015]
The rotating rotary blade generates drag force in the tape width direction. However, the drag force is canceled by the rotating rotary blades rotating in opposite directions, and the tape does not move in the width direction. Can be cut with high accuracy.
[0016]
Claims 2 The invention according to claim 1 In the tape cutting device described ,in front Record Cutter A round blade drive rotating means for converting the sliding movement of the movable member relative to the holding member into the rotation of the rotary round blade is provided.
[0017]
(Action / Effect) Claim 2 According to the invention according to the present invention, when the arm is moved close to the workpiece, the movable member is received by the fixed portion fixed in advance at a predetermined position. Cutter The rotary member can be driven to rotate by sliding the movable member relative to the holding member. Therefore, the rotary round blade can be rotationally driven without requiring a driving actuator such as a motor, and a rotationally driven cutting device having excellent cutting performance can be constructed at a low cost and in a small size.
[0018]
Claims 3 The invention according to claim 1 Or Claim 2 A cardboard box making apparatus comprising the tape cutting device according to any one of the above, a conveying means for conveying the cardboard box before box making along a certain conveying path in the front-rear direction, and an adhesive to the cardboard box And a closing means for closing the flap by sticking the tape, and the arm is moved close to the attached adhesive tape to cut it.
[0019]
(Action / Effect) Claim 3 According to the invention concerning, the adhesive tape which is stuck on the cardboard box and moves can be cut in a straight line, and a finish with a clean appearance can be expected.
[0020]
Claims 4 The invention according to claim 1 to claim 1 3 A left and right pair of cardboard boxes having a tape cutting device according to any one of the above, wherein the corrugated cardboard boxes with the bottom face facing up are nipped and conveyed along a certain conveyance path in the front-rear direction. A state in which the conveyor belt, the flap folding means for folding the left and right outer flaps on top of each other and the both ends of the folded outer flap are abutted with each other while folding the inner flap at least in front of the cardboard box And a closing means for sticking the adhesive tape, and the arm is moved close to the attached adhesive tape to cut it.
[0021]
(Action / Effect) Claim 4 According to the invention concerning, the adhesive tape which is stuck on the cardboard box and moves can be cut in a straight line, and a finish with a clean appearance can be expected.
[0022]
Claims 5 The invention according to claim 6 is a box making apparatus for cardboard boxes according to claim 6, and is provided at a predetermined position on the upper side of the transport path from the closing means, and detects a pair of left and right front walls of the transported cardboard boxes. A detection signal from one of the detection means and one of the left and right positions on the front wall of the corrugated cardboard box is detected first, and the drive of the conveyor belt on the detection means side is stopped, and then the other detection is performed. And a conveying belt control means for controlling the stopped conveying belt to be driven again by a detection signal from the means.
[0023]
(Action / Effect) Claim 5 According to the invention, when a corrugated cardboard box is supplied at a starting end of the conveyance path in a predetermined posture with the bottom face up and the rear inner flap is manually folded, first, the front inner flap is folded between the left and right conveyance belts. The left and right outer flaps are folded on the inner flap in accordance with the nipping and conveyance, and then closed by the closing means in a state where both ends of the left and right outer flaps are butted. Here, the box shape is corrected as follows before the closing step.
[0024]
That is, if the corrugated cardboard box held and conveyed by the conveyor belt is changed and the left and right ends of the front wall are displaced forward and backward, the left (or right) location of the preceding front wall is closer to the upper side of the conveyance path than the closing means. When the predetermined position is reached, one detection means provided on the preceding side detects this. When the detection signal is given to the conveyance belt control means, the conveyance belt on the detection means side is stopped, and the feeding on the preceding side is substantially stopped. Next, the front wall right (or left) side on the delayed side is transported by the other transport belt that is not stopped, and is aligned with the front wall left (or right) location that preceded, that is, the front wall is When the shape is corrected to an appropriate shape orthogonal to the conveyance path, the other detection means detects the right (or left) portion of the front wall on the delayed side. When the detection signal is given to the conveyor belt control means, the conveyor belt stopped previously is driven again. As a result, the entire cardboard box has a correct rectangular parallelepiped shape, and the left and right outer flaps are not displaced forward and backward, and the process proceeds to the closing process.
[0025]
Therefore, according to the iron making device of the present invention, even if the box shape becomes unstable during transportation, such as when the left and right ends of the front wall of the cardboard box are shifted back and forth, one of the leading front wall locations is detected. Means, the conveyor belt control means stops the conveyor belt on the detection means side, temporarily stops the front wall part side once, and the front wall part where the delayed front wall part precedes In this state, the other detection means detects the front wall portion and the shape of the cardboard box is corrected by driving the conveyor belt stopped previously by the detection signal. It can be properly modified and sealed without damage. In addition, since the box shape correcting portion is simply configured by the detection means and the conveyor belt control means, the entire apparatus can be manufactured at low cost.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a corrugated board making apparatus including a tape cutting device according to the present invention will be described below with reference to the drawings.
1 is an overall perspective view of a corrugated box making apparatus, FIG. 2 is a plan view of a box shape correcting section, FIG. 3 is a longitudinal front view of the box shape correcting section, and FIG. 4 is a block diagram of a control system of the box shape correcting section. It is.
[0027]
As shown in FIG. 1, this corrugated board box making apparatus includes a machine base 1 that can be manually moved, a horizontal transport base 2, a pair of left and right transport belts 3a and 3b arranged opposite to each other, and an inner flap folding guide. 4, an outer flap folding guide 5, a box shape correcting portion 6, and a tape attaching mechanism 7 are provided.
[0028]
As shown in FIG. 14, the transport table 2 forms a transport path A on which a cardboard box W with the bottom face upward is placed and moves horizontally in the front-rear direction, and is provided at the upper end of the machine base 1. The height of the adjustment handle 8 is adjusted so as to be adjustable, and a carry-in table 2a is connected to the front end of the adjustment handle 8 and a carry-out table 2b is detachably connected to the rear end.
[0029]
The left and right transport belts 3a and 3b are stretched between a pair of pulleys that are vertically supported on the front and rear of the transport frame 9, and are independently driven by a pair of motors 10a and 10b disposed above the rear part. Is done. Further, the left and right transport frames 9 move back and forth by rotating the adjustment handle 11 provided on the upper rear side of the machine base 1 and adjust the distance between the left and right transport belts 3a and 3b to appropriately hold the cardboard box W. It is comprised so that it can convey. A box insertion guide 12 is provided at the front end of each transport frame 9 so as to expand.
[0030]
The inner flap folding guide 4 is made of a plate material having a curved front end edge, the inner flap in front of the cardboard box W placed and fed in a posture in which the rear inner flap fb is manually folded with the bottom surface facing upward on the carrier 2. The fa (see FIG. 14) is configured to be folded and guided inward.
[0031]
The outer flap folding guide 5 is made of a cantilevered bar, and the left and right outer flaps fc and fd (see FIG. 14) of the corrugated cardboard box W conveyed between the conveyor belts 3 are inwardly directed. The space is narrowed in a V shape along the transport path A and is inclined to the front downward.
[0032]
The box shape correcting unit 6 is configured as follows. As shown in FIG. 2 and FIG. 3, elastic deformation is possible in contact with the left and right portions wa and wb of the front wall of the cardboard box W to be transported at a position slightly closer to the transport side than the adhesive tape pasting mechanism 7 described in detail later. Limit switches 17a and 17b having contactors 16a and 16b are mounted on the lower covers 18 of the pair of left and right transport belts 3a and 3b. The limit switches 17 a and 17 b can be adjusted in the front-rear position via the guide rail 19. Further, the positions of the limit switches 17a and 17b are adjusted so that the contacts 16a and 16b enter the state of entering the transport path as shown in FIG.
[0033]
As shown in FIG. 4, the detection signals from the limit switches 17a and 17b are given to the conveyor belt controller 35. The conveyor belt controller 35 controls the conveyor belts 3a and 3b via the motor controllers 36a and 36b. The motors 10a and 10b to be driven are controlled. When one of the limit switches 17a and 17b is turned on first, the transport belt controller 35 drives the transport belt 3a (or 3b) on the limit switch 17a (or 17b) side by the detection signal. Control is performed such that energization of the motor 10a (or 10b) is cut off and stopped via the motor control unit 36a (or 36b). Subsequently, when the other limit switch 17b (or 17a) is turned on with a delay, the detection signal is used to restore the power supply to the motor 10a (or 10b) that has been stopped, and the transport belt 3a (or 3b) is restored. It is configured to drive.
[0034]
That is, the front wall of the cardboard box W sandwiched and conveyed by the conveyor belts 3a and 3b is displaced forward and backward, for example, as shown in FIG. 5A, the front wall left portion wa is more than the front wall right portion wb. As an example, a case where the sheet is conveyed in a preceding state will be described. In this case, the preceding front wall left portion wa comes into contact with the contact 16a of the limit switch 17a that is placed in the conveyance path, and the limit switch 17a is turned on at the position P. The conveyance drive of the conveyance belt 3a is cut off by controlling the conveyance belt control unit 35 to stop the motor 10a according to the detection signal. At this time, the front wall left portion wa is substantially stopped at that position, and the front wall right portion wb is moving forward by driving only the other conveyance belt 3b.
[0035]
Subsequently, as shown in FIG. 5B, the front wall right portion wb delayed at the position P contacts the contact 16b of the limit switch 17b, and the limit switch 17b is turned on. In response to the detection signal, the conveyance belt control unit 35 restores the motor 10a that has been stopped, and the conveyance belt 3a is conveyed again. In addition, the conveyance belt 3b at this time is in a state where the conveyance operation is continued without interruption. As a result, the front wall left portion wa and the front wall right portion wb are orthogonal to the transport path at the position P, in other words, the shape of the cardboard box W is corrected to an appropriate rectangular parallelepiped shape as a whole. . Then, the cardboard box W is properly shaped and fed into the adhesive tape attaching mechanism 7 on the lower conveyance side.
[0036]
In addition, when an induction motor is used as the motors 10a and 10b, for example, when one limit switch 17a detects the front wall left portion wa that precedes the cardboard box, the current to the motor 10a is cut off. Since the motor 10a moves due to inertia, the front wall left portion wa of the cardboard box W does not necessarily stop at the detection position (position P in FIG. 5). In such a case, the shape of the cardboard box W can be reduced by slightly delaying the timing until the motor 10a is restarted after the other limit switch 17b detects the right side wall wb on the delay side of the cardboard box W. It should be appropriate. In addition, the detection signal of the case where the cardboard box W is conveyed so as to be in a substantially proper shape, that is, the front wall left portion wa and the front wall right portion wb are in contact with the limit switches 17a and 17b substantially simultaneously. When the time difference is small, the deformation of the corrugated cardboard box W can be allowed, and the conveyor belts 3a and 3b on both sides may be continuously moved without being stopped.
[0037]
Contrary to the above, when the cardboard box W is transported in a state where the front wall right portion wb precedes the front wall left portion wa, the limit switch 17b is turned on first, so the transport belt The conveyance drive of 3b is cut off, the front wall right portion wb stops at the position P, and the conveyance belt 3b stopped by the detection signal of the limit switch 17a that detects the delayed front wall left portion wa is restarted. Be controlled.
[0038]
As described above, the box shape correcting unit 6 is simply configured by only the limit switches 17a and 17b and the conveyor belt control unit 35, and therefore can be manufactured at low cost as the entire apparatus. In addition, since it is configured to indirectly correct the shape via the conveyor belts 3a and 3b without forcibly correcting the shape by directly colliding with the front wall of the cardboard box like the stopper of the conventional device, The shape of the cardboard box can be appropriately corrected without damaging the front wall portion or the like.
[0039]
As shown in FIG. 6, the adhesive tape attaching mechanism 7 includes an original fabric roll RT around which the adhesive tape T is wound, a guide roller 20 a, a reverse rotation preventing guide roller 20 b, and a front attaching roller 21 positioned before and after the transport path A. And the rear sticking roller 22 and the tape cutting device 40. The front sticking rollers 21 and 22 are swing arms 25 supported by the frame plate 24 so as to be swingable up and down around the fulcrums P1 and P2. And 26 are freely mounted at the free ends. The tape cutting device 40 is mounted on the free end portion of a swing arm 27 supported by the frame 24 so as to swing up and down around a fulcrum P3. The detailed structure thereof will be described later.
[0040]
Both swing arms 25 and 26 are interlocked and linked by a link 28, and move up and down in synchronization with each other, and both swing arms are supported by a spring 29 stretched between the frame plate 24 and the swing arm 26. 25 and 26 are biased so that their free ends enter the transport path A of the cardboard box W. Near the free end of the swing arm 25, a guide roller 30 and a tape holder 31 for holding the adhesive tape T guided by the guide rollers 20a and 20b are provided, and the adhesive surface conveys the tip of the adhesive tape T. It is guided and held on the front surface of the front sticking roller 21 in a posture toward the upper side of the path A (right side in the figure). The swing arm 27 is also urged by a spring 32 stretched over the frame plate 24 so that the free end portion 27a enters the movement locus of the lateral corner of the cardboard box W.
[0041]
The detailed structure of the tape cutting device 40 will be described with reference to FIGS.
As shown in FIG. 11, a bracket 41 is connected to the free end portion of the swing arm 27 with a bolt 42 so that the position of the bracket 41 can be adjusted in the front-rear direction, and a cutter holding member 43 is connected to the front surface of the bracket 41 with a bolt 45 via a spacer 44. In addition, two rotary round blades 46 arranged in the left-right direction (tape width direction) are supported on the back surface of the cutter holding member 43 so as to be freely rotatable via a rotation support shaft 47.
[0042]
A movable member 48 made of a wide plate material is provided on the front surface side of the cutter holding member 43, a vertical guide rail 50 connected to the inner surface of the movable member 48 with a bolt, and a countersunk screw on the front surface of the cutter holding member 43. The movable member 48 is supported so as to be slidable in the vertical direction with respect to the cutter holding member 43. The upper and lower ends of the inner surface of the movable member 48 are provided with an upper portion 53a and a lower stopper 53b. The upper stopper 53a abuts on the upper end of the slider 52, so that the slide lowering due to the weight of the movable member 48 is restricted. The upper stopper of the movable member 48 is restricted by the lower stopper 53b coming into contact with the lower end of the slider 52.
[0043]
A pinion gear 54 is integrally formed at the end of the rotation support shaft 47, and a rack gear 55 that meshes with the pinion gear 54 is connected and fixed to the inner surface of the movable member 48 by a bolt 56. When the rack gear 55 is moved relative to the pinion gear 54 by sliding up and down with respect to the cutter holding member 43, the pinion gear 54 rotates and the rotary round blade is driven to rotate. In this case, the left and right rotating round blades 46 are driven to rotate in opposite directions.
[0044]
Further, a guide roller 57 is provided on one side of the movable member 48. As will be described later, the frame plate 24 (shown in FIG. 6) is positioned so as to be located in the vertical movement locus of the guide roller 57. ) Is fixed to the roller receiving member 58.
[0045]
As shown in FIGS. 11 to 13, a guide member 59 is connected to the lower end of the swing arm 27 with a bolt 60 so as to be adjustable in the longitudinal direction.
[0046]
The structure of each part of this iron making apparatus is as described above, and the operation of the adhesive tape attaching mechanism 7 is as follows.
[0047]
(1) As shown in FIG. 6, in the initial state where the cardboard box W does not arrive, the front sticking roller 21, the rear sticking roller 22, and the tape cutting device 40 that support the adhesive tape T are respectively transport paths of the cardboard box W. It is in the position that has entered A.
[0048]
In this case, in the tape cutting device 40, since the swing arm 27 is greatly lowered, the guide roller 57 is received and supported by the roller receiving member 58, so that the movable member 48 is relative to the cutter holding member 43. It is in a state of sliding upward.
[0049]
(2) When the corrugated cardboard box W whose shape has been corrected comes into contact with the front pasting roller 21, the front pasting roller 21 resists the spring 29 while the front end portion ta of the adhesive tape T is pasted on the front surface of the corrugated board box W. Retreat upward. Along with this, the rear sticking roller 22 also moves up and down.
[0050]
(3) When the cardboard box W further advances, as shown in FIG. 7, the front adhering roller 21 rides on the cardboard box W and moves the adhesive tape T along the abutting edges of the left and right outer flaps fc and fd. Paste it. At this time, the rear sticking roller 22 that has been lifted and retracted is also on the moving path of the cardboard box W, and the swing arm 27 is pushed up against the spring 32 by contact with the cardboard box W, so that the tape cutting device 40 is As shown in FIG. 11, it is retracted above the adhesive tape T.
[0051]
In this case, since the fixed roller receiving member 58 is lowered relative to the tape cutting device 40, the movable member 48 is slid to the lower limit as shown in FIG.
[0052]
(4) Even if the cardboard box W further advances and the front sticking roller 21 comes off the rear end of the cardboard box W, the front sticking roller 21 is still on the cardboard box W while the rear sticking roller 22 is still on the cardboard box W. Is held in the raised position, and the adhesive tape T protruding from the rear end of the cardboard box W is in a tension state. Here, when the guide member 59 attached to the free end of the swing arm 27 so as to be adjustable in the front-rear direction is detached from the rear end of the cardboard box W, the tape cutting device 40 is lowered by the spring 32 and is tensioned as described above. Cut the adhesive tape T.
[0053]
In this case, in the tape cutting device 40, the movable arm 48 is relatively moved relative to the cutter holding member 43 in a state where the guide roller 57 is received and supported by the roller receiving member 58 because the swing arm 27 is greatly lowered. Slide upwards. By this slide, the left and right rotating round blades 46 are pressed against the adhesive tape T while being driven to rotate in opposite directions, and start to bite into the adhesive tape T from the lower end of the arc cutting edge of the left and right rotating round blades 46 for a moment. Thus, a straight line cut in the tape width direction is performed.
[0054]
The tape cutting position can be arbitrarily changed and adjusted by adjusting the protruding length of the guide member 59 provided at the free end of the swing arm 27.
[0055]
(5) As the cardboard box W further moves forward, as shown in FIG. 8, as shown in FIG. 8, the rear application roller 22 that is urged downward moves relative to the cardboard box W from the upper surface to the rear surface while being pressed and contacted. The rear end tb of the adhesive tape T is wrapped around and attached to the rear surface of the cardboard box W, and the cardboard box W in which the tape sealing at the bottom is completed is carried out from the rear end of the transport path A as shown in FIG. .
[0056]
With the above, one adhesive tape sticking operation is completed and the initial state is restored to prepare for the next box arrival.
[0057]
As described above, two rotary round blades 46 are arranged in the tape width direction at the tip of the swing arm 27 and the movable member 48 is slid with respect to the cutter holding member 43 that supports the rotary round blade 46. Both rotary round blades 46 can be rotated in opposite directions, that is, in the tape width direction. Accordingly, the movable member 48 can be slid and moved in synchronization with the peristaltic movement of the tape T of the peristaltic arm 27 so that the rotary round blade 46 is driven to rotate and cut into the tape T. The tape T can be cut linearly. Can be cut accurately.
[0058]
The present invention is not limited to the embodiment described above, and can be modified as follows.
[0059]
(1) In the above-described embodiment apparatus, the two rotating round blades 46 are arranged in the tape width direction. However, the number is not limited to two and may be one or two according to the width of the tape T. The above may be arranged and arranged.
[0060]
(2) In the above-described embodiment apparatus, the cardboard box W is nipped and conveyed by the conveyor belts 3a and 3b, but the cardboard box W may be conveyed by a belt conveyor without using the conveyor belt. Alternatively, a configuration in which a conveyor belt and a belt conveyor are combined may be used.
[0061]
Further, in the above-described embodiment apparatus, the flaps fa, fc, and fd of the cardboard box W placed and supplied to the apparatus in a posture in which the inner flap fb is manually folded are configured to be automatically folded. For example, the cardboard box W is placed and supplied to the apparatus in a state where the flaps fa to fd are folded in advance, and the adhesive tape T is attached to the butt end of the flap. You may comprise so that it may cut | disconnect.
[0062]
【The invention's effect】
As is clear from the above description, according to the present invention, when the arm swings in the direction approaching the adhesive tape, the rotating round blade is pressed against the adhesive tape, and the point from the tip of the arc blade tip to the adhesive tape is The biting is started, and at the same time, the adhesive tape can be cut in a straight line in an instant by biting while the rotating round blade rotates.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a cardboard box making apparatus.
FIG. 2 is a plan view of a box shape correcting unit.
FIG. 3 is a longitudinal front view of a box shape correcting portion.
FIG. 4 is a block diagram of a control system of a box shape correcting unit.
FIG. 5A is a plan view showing a state where the front wall left portion is in contact with the limit switch of the box shape correcting portion, and FIG. 5B is a diagram showing a state where the front wall right portion is in contact with the limit switch of the box shape correcting portion. It is a top view which shows a state.
FIG. 6 is a side view of the tape attaching mechanism.
FIG. 7 is a side view showing a tape attaching process.
FIG. 8 is a side view showing a tape attaching process.
FIG. 9 is a rear view of the tape cutting device.
FIG. 10 is a plan view in which a part of the tape cutting device is cut away.
FIG. 11 is a side view of the tape cutting device in a raised position.
FIG. 12 is a side view of the tape cutting device being lowered.
FIG. 13 is a side view of the tape cutting device in a lowered state.
FIG. 14 is a perspective view from the bottom side of the cardboard box before sealing processing.
FIG. 15 is a perspective view from the bottom side of the cardboard box that has been sealed;
[Explanation of symbols]
3a, 3b ... Conveying belt
40 ... Tape cutting device
43 ... Cutter holding member
46… Rotating round blade
48… movable member
A ... Transport route
T ... tape
W ... cardboard box
fa, fb ... Inner flap
fc, fd ... outer flap

Claims (5)

A tape cutting device for cutting tape with a rotating round blade,
At the tip of the arm that can swing between the standby position and the tape cutting action position,
A cutter holding member for arranging and holding the two rotary round blades aligned in the tape width direction ; and
The rotary round blade rotatably held by the cutter holding member is housed in the standby position, and moved away from the cutter holding means as the arm swings, and the cutting edge of the rotary round blade is moved at the tape cutting position. A movable member that protrudes,
In conjunction with the swing of the arm, using the relative separation movement of the cutter holding member and the movable member as a driving force , the blade tip is moved to the movable member while rotating the two rotating round blades in opposite tape width directions. A tape cutting device characterized in that the tape is cut out by protruding from the tape. In the tape cutting device according to claim 1 ,
Tape cutting apparatus being characterized in that a round blade drive rotation means for converting the sliding movement of the movable member the rotation of the rotating circular blade for the previous SL cutter holding member. A box making device for a cardboard box comprising the tape cutting device according to claim 1 or 2 ,
Conveying means for conveying the cardboard box before box making along a certain conveying path in the front-rear direction;
And a closing means for closing the flap by sticking an adhesive tape to the cardboard box,
A corrugated cardboard box making apparatus characterized in that the arm is moved close to the pasted adhesive tape and cut. A box making device for a cardboard box comprising the tape cutting device according to any one of claims 1 to 3 ,
A pair of left and right transport belts that sandwich and transport a corrugated cardboard box with its bottom facing upward along a certain transport path in the front-rear direction;
Fold the inner flap at least in front of the cardboard box with the transport of the cardboard box,
Flap folding means for folding the left and right outer flaps on it,
With a closing means for applying an adhesive tape in a state where both ends of the folded outer flap are abutted,
A corrugated cardboard box making apparatus characterized in that the arm is moved close to the pasted adhesive tape and cut. In the box making apparatus of the cardboard box according to claim 4 ,
A pair of detection means that are arranged at a predetermined position on the upper side of the conveyance path from the sealing means, and respectively detect the left and right positions of the front wall of the cardboard box to be conveyed;
In accordance with a detection signal from one detection means that previously detected one of the left and right locations on the front wall of the cardboard box, the drive of the conveying belt on the detection means side is stopped, and then detection from the other detection means A corrugated board box making apparatus comprising: a transport belt control means for controlling the stopped transport belt to be driven again by a signal.

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