JP2724348B2 - Cutting blade mounting device to carton - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a device for attaching a cutting blade to a carton, which can attach a cutting blade to a carton at an arbitrary position in the middle from the tip.

[Conventional technology and its problems]

2. Description of the Related Art Conventionally, there are various types of devices for attaching a cutting blade to a carton. According to the mounting device, the cutting blade can be mounted on the carton, but the mounting position of the cutting blade on the carton is for mounting only the tip (hereinafter referred to as "tip mounting"). Alternatively, there are two types, one for mounting at an arbitrary intermediate position (hereinafter referred to as "for intermediate mounting"). That is, the one for tip mounting is mainly attached to a carton containing aluminum foil or the like, and the one for intermediate mounting is attached to a carton mainly for containing a synthetic resin film or the like.

In order to operate the two types on the same machine, it is necessary to replace a part of the machine entirely because the mechanism for stopping the carton is different, and not only the time for the replacement, There was a defect that production efficiency was reduced by half.

In addition, in the case of the intermediate mounting, the cutting blade was slightly shifted but fixed in many cases. That is, the 31st
As shown in the figure, the cutting blade is attached slightly inside ΔL from the end of the carton a, or as shown in FIG.
A slight inclination of the angle Δθ occurred. Even with such a slight deviation, when assembled as a carton a, the blade of the cutting blade does not protrude from the corner of the box and is not useful at all, and there is no blade at all. There were drawbacks. In addition, there were times when I was too dangerous.
For this reason, in the case of the intermediate mounting, if the number is about three per second, it is often difficult to mount the intermediate mounting at a more accurate position because the speed is too high.

[Means for solving the problem]

Therefore, the inventor of the present invention has conducted intensive studies to solve the above-mentioned problems. As a result, the inventors of the present invention have a configuration in which a cutting blade is hit on a carton in a die set provided in a main body frame. A pair of left and right intermediate mounting stopper pins and a tip mounting stopper main part with a tip mounting stopper pin for stopping the carton feeding in the flat feed hole for transferring the carton formed in the die set are provided. The carton is brought into contact with only one of them, and the front and rear adjustment plates that can simultaneously adjust the front and rear stopper pins for both middle mountings, and the left and right of both middle mounting stopper pins can be adjusted independently, and both middle mounting Independent front and rear adjustment plates with stopper pins for each are attached to the carton provided on the liftable main plate that can be moved up and down. The mounting position of the cross blades made from the tip in any position of the intermediate is obtained by solving the above problems.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 28.

As shown in FIGS. 1 to 3, the apparatus of the present invention comprises a mold part A for hitting a cutting blade b on a carton a, a positioning device B for determining a mounting position of the cutting blade b on the carton a, and a cutting blade. It comprises a carton a without b, a feed section C, and a discharge section D of the carton a with a cutting blade b.

First, the mold part A will be described with reference to FIGS. 4 to 10 and FIGS. 20 to 26. The mold part A can be freely mounted in a square hole formed in the center of the main body frame 1. A mold die set _A0 is provided. Mold die set A ₀ is composed of an upper mold die set A ₁ and the lower mold die set A ₂ Prefecture. As shown in FIGS. 2 and 3, the lower die set A ₂ is provided with a plate cam 3 and a clamp pin 4 attached to a main shaft 2 rotating from a motor M of the machine through an endless belt and a clutch. It is provided to be able to move up and down. Specifically, the plate cam 3 is fixed to the rotating main shaft 2, and the eccentric rotation of the plate cam 3 allows the clamp pin 4 having the lower end fixed to the housing that rotatably wraps the plate cam 3 to move up and down. It is provided in. Its mold die set A ₀ is a lower mold die set A ₂ having a upper mold die set A ₁ and the lower blade 6 provided with upper knife 5 is separable vertically by ball guides 7a and the guide receiving 7b It is provided in.

The mount position of the upper knife 5 that upper mold die set A _1,
A flat feed hole 8 of the carton a is drilled in the left-right direction in FIGS. 4 and 8, and a lower blade insertion notch 9 is formed below the flat feed hole 8 on the inlet side. Nine cut-outs for inserting the lower blade are provided so as to protrude slightly therefrom so that the surfaces of the saw blade-shaped upper blade 5 are substantially aligned.

Further, the metal plate feed guide 10 on the lower side of the upper blade 5 upper die set A ₁ is, guide pins 11a fixed to the lower surface of the upper mold die set A _1, vertically movably provided along the 11a,
Normally, the compression coil spring 11b, via 11b, is provided in contact while being Tamahatsu upward on the lower surface of the upper mold die set A _1. The metal plate feed guide 10 has a flat metal plate guide hole 10a into which a band-shaped metal plate p is inserted. The width of the metal plate guide hole 10a is adjusted by width adjusting pieces 10b, 10b. Its metal plate feed guide 10, the lower die set A ₂ to provided height position regulating bolt 11c has, the position at the upper end of 11c is restricted. That is, only the lowered position location of the lower mold die set A ₂ in the final step, the metal plate feed guide 10 is provided so as to descend. In other words, the metal plate feed guide 10 is always pressed and fixed to the upper blade 5, but the lower die set A ₂
Is lowered, and only at the final descent, only a slight height (about 1 cm
(About 2 cm).

Also punch 12, 12 breaks through to be opposed to the blade surface of the lower blade 6 provided in the lower mold die set A _2, ... it is provided faces upward. The punching punches 12, 12, ... are 1 cm to 2
Many are provided at intervals of cm along the blade surface direction (see FIG. 12). Further, the metal plate feed guide 10 is opposed to the punch-through punches 12, 12,..., And the punch holes 10c, 10c,.
Are provided in a plurality corresponding to the vertical direction. Also, the upper blade 5 has punch holes 5a, 5 of the punching punches 12, 12,.
a, ... are drilled.

Referring to FIGS. 11 to 19, the positioning device B has a cutting blade 13 at an intermediate position of the carton a.
The reference numeral 14 denotes a stopper pin for mounting the tip for hitting the cutting blade b at the tip of the carton a.

Intermediate mounting the stopper pin 13, in which the cutting edge b is stops the feeding of the cartons a not adhere, configuration, appropriately vertically movably provided, the lower end, flat feed holes of the upper die set A ₁ 8 and is provided so as to come into contact with the lower surface constituting the hole, and is used to strike the cutting blade b at an appropriate position in the middle of the length direction of the carton a (the left-right direction in FIG. 1). Is done.

Next, a mechanism for moving up and down and adjusting the intermediate mounting stopper pin 13 forward and backward, that is, a stopper mechanism will be described.
The stopper mechanism, FIG. 4, as shown in FIG. 11 to FIG. 13, provided in the body machine frame 1 just above the mold die set A _0. In the specific embodiment, the mounting plate 15 is fixed on the upper part 1a of the main body frame 1, and a lifting main plate 17 is provided above the mounting plate 15 via left and right guides 16, 16 so as to be able to move up and down. Have been. The guides 16, 16 have guide pins 16 a, 16 a erected on the left and right sides of the mounting plate 15, which are loosely inserted into guide receivers 16 b, 16 b provided on the left and right sides of the lifting main plate 17.

Reference numeral 18 denotes a front-rear adjustment plate, which is provided at a central position excluding both ends of the lifting main plate 17 so as to be slidable back and forth through dovetail grooves 17a, 17a. Specifically, a pinion 20 pivotally supported by a front-rear adjustment plate 18 meshes with a rack 19 fixed to the lifting main plate 17, and the pinion 20 is appropriately rotated to roll the surface of the rack 19 to adjust the front-rear direction. The plate 18 is provided so as to move back and forth. Of course, it is movable only at the time of adjustment, and after adjustment or before adjustment, the front-rear adjustment plate 18 is attached to the lifting / lowering main plate 17 by a fixing member f ₁ such as a hook.
Through, is firmly fixed.

Reference numeral 21 denotes an independent front-rear adjustment plate, which is provided at the left and right sides of the front-rear adjustment plate 18 so as to be adjustable in the front-rear adjustment plate 18 via dovetail grooves 18a, 18a, respectively. Specifically, the rising plate pieces 18b fixed on the left and right sides of the front-rear adjustment plate 18 are provided.
A screw rod 22, 22 is provided on 18b so that it can only rotate,
22 and 22 are screwed into female screws provided in the independent front and rear adjustment plates 21 and 21, respectively. Thus, by rotating the knobs 22a, 22a fixed to the screw rods 22, 22, the screw rods 22, 22 are rotated.
, The independent front-rear adjustment plate 2 through the dovetail grooves 18a, 18a
1,21 are provided for front and rear adjustment. The independent front and rear adjustment plate 21 also is intended to movable only during regulation, after adjustment, or, before adjustment, is fixed in the fixture f ₁ and the like.

The independent front and rear adjustment plates 21 are provided in a pair on the left and right. The upper ends of the intermediate mounting stopper pins 13 and 13 are fixed to the independent front and rear adjustment plates 21 and 21, respectively. Is the front and rear adjustment plate 18, the lifting main plate 17, and the mounting plate 1.
5, is configured to penetrate the upper part 1a of the main body machine frame 1, and reaches the upper mold die set A ₁ of the mold die set A _0.

Reference numeral 23 denotes a tip mounting stopper main portion for mounting a cutting blade b at the tip of the developed carton a, as shown in FIGS. 7 to 10, and a part of the upper blade 5 is located at the lower end. those formed, constantly above the upper mold die set a _1,
Resiliently provided by the compression coil springs 24, 24,
During descent of the tip mounting the stopper pin 14, the blade face of the tip mounting stopper main portion 23 is projected from the lower surface of the upper mold die set A ₁ downward, and is configured so as to block substantially the flat feed holes 8 . The tip of the carton a is stopped at the angled tip of the saw-shaped blade surface of the tip mounting stopper main part 23.
The blade surface of the tip mounting stopper main portion 23 is located at the same position as the upper blade 5 with respect to the vertical line, and meshes with the blade surface of the lower blade 6 when the cutting blade b is driven into the carton a. It is configured as follows. For this reason, the position of the tip mounting stopper main part 23 cannot be adjusted back and forth like the above-described intermediate mounting stopper pin 13, and unlike the above-described stopper mechanism of the intermediate mounting stopper pin 13, The upper end of the stopper pin 14 is detachably provided on a fixing portion 25 fixed to the lifting main plate 17. by this,
When the main plate 17 is moved up and down, a stopper pin
14 is configured to be able to move up and down only.

Here, when the carton a comes into contact with the apparatus of the present invention, only one of the intermediate mounting stopper pin 13 and the tip mounting stopper pin 14 is used, and the other may not be operated. Required. In particular, in the drawings, the stopper pin 13 for the intermediate mounting and the stopper pin 14 for the tip mounting are shown as solid lines in the same drawing, but in this case, only one of them is used.
Further, in the explanation, the stopper pin 13 for the intermediate mounting and the stopper pin 14 for the distal end have been described as being separate from each other. However, as a matter of course, as shown in the drawings and the like, the same shape may be used. Further, the stopper pin 13 for intermediate mounting and the stopper pin 14 for distal end mounting are collectively called a stopper pin.

FIGS. 15 to 19 show an embodiment in which the carton a is in contact with either the intermediate mounting stopper pin 13 serving as the stopper pin or the tip mounting stopper main part 23 below the tip mounting stopper pin 14. There is something to show. In FIGS. 15 to 17, the stopper pin for mounting the tip is shown.
The bifurcated portion of the lever plate piece 26 is sandwiched by the constricted portion 14a formed on the upper side of the 14, and the stopper pin 14 for mounting the distal end is provided so as to be able to move up and down by swinging of the lever plate piece 26. The stopper mounting main part 23 below the tip mounting stopper pin 14
When the carton a is brought into contact with the lower end, the tip mounting stopper pin 14 is lowered with the lever plate piece 26 as shown by the solid line in FIG. 15 and FIG. The stopper main part 23 is also lowered. Next, the locking pin 27 clamps the split groove 25a of the fixing portion 25, and fixes the tip mounting stopper pin 14 to the fixing portion 25.
Then, the leading end stopper main portion 23 which has been repelled upward is fixed while being lowered. Such an elevating mechanism can also be applied to elevating the stopper pin 13 for intermediate mounting.

In the embodiment shown in FIGS. 18 and 19, a rack portion 14b is engraved on the stopper pin 14 for attaching the distal end, and a pinion 28 meshing with the rack portion 14b is pivotally mounted in the housing of the fixed portion 25. Supported. Therefore, as the lifting / lowering operation of the tip mounting stopper pin 14, the pinion 28 is appropriately rotated, the tip mounting stopper pin 14 is raised / lowered as appropriate, and is fixed to the fixing portion 25 by the lock rod 27 at a desired position. . Also in this embodiment, it is needless to say that the present invention is not limited to the raising and lowering of the stopper pin 14 for the front end mounting, but can be applied to the raising and lowering of the stopper pin 13 for the intermediate mounting.

29 is an oscillating link, which raises and lowers the lifting main plate 17,
The rolls 29a, 29a at the tip of the swing links 29, 29 are
Are engaged with U-shaped bearings 17b, 17b provided on both sides.
The bases of the oscillating links 29, 29 are fixed to a shaft 30 that is supported between bearings 15a, 15a provided on the left and right sides of the mounting plate 15. A compression spring (coil spring) is interposed between the lifting main plate 17 and the mounting plate 15, and is provided so as to always repel the lifting main plate 17 upward.
The stopper pins, such as the lifting main plate 17 and the stopper pin 13 for the intermediate mounting or the stopper pin 14 for the distal end mounting, are configured to be lowered only when swings downward.

Next, in the apparatus of the present invention, the feeding portion C of the carton a without the cutting blade b and the discharging portion D of the carton a with the cutting blade b will be described with reference to FIGS. 1 to 3 and FIG.

Its feeding section C, transfer structure C carton a cutting blade b is not nailed is a separating mechanism C ₁ take one by one from above from among bundled number, for transferring the cutting blade b is not nailed carton a and _2, a carton a transferred to the mold section a, is and constructed from the transfer press structure C ₃ Metropolitan pressing. In FIG. 2, the separating mechanism C ₁ is provided at the left end of the main body frame 1, and a plurality of cartons a are stacked one above the other by a suction cup formed by vacuum at the tip of a link 31 that swings back and forth. Immediately after being sucked up, by the swing of the link 31, one carton a is driven by the drive roller 35,
While being sandwiched between the free roller 38, it is transferred to the transfer structure C ₂ side. Then, it is transferred to the mold section A side at the claws 33, 33 provided on the two chains 32 and 32 which constitute the said transfer structure C _2. Furthermore, it moves to transfer the pressing structure C _3. It said transfer press structure C _3, the third diagram, as shown in FIG. 26 or the like, the chain 3
A drive belt 34, which is much faster than the peripheral speeds of 2, 32, is wound. The drive belt 34 is configured to transfer the carton a from near the feed end of the chain 32 to immediately before being inserted into the mold part A. As a specific configuration, the drive belt 34 is provided in the same direction as the feed direction of the chain 32, and includes two chains 32, 32.
The two drive belts 34, 34 are driven from inside the drive rollers 35, 35
It is wound around each other. On the upper surfaces of the drive belts 34, 34, a plurality of (four in this embodiment) holes 36a, 36a,... Are formed in the horizontally disposed strip 36, 36, and the holes 36a, 36a,. …
Are rollably inserted into the portions, and the lower end of the steel balls 37, 37,.
It is configured to press the upper surface of 4,34. A drive belt at the end of the steel balls 37, 37,...
The free rollers 38,3 are located above the drive rollers 35,35 at the 34,34 end.
8 is provided so as to press the drive belts 34, 34 from top to bottom with elastic force.

Then discharging unit D, the third diagram, as shown in FIG. 26, after the cutting blade b was nailed to a carton a, at a high speed from the mold die set A within _0, the cutting blade b with carton a Specifically, the kicker roller 39 is always driven by the kicker motor 40 immediately after the die set A ₀ and at the height position of the flat feed hole 8.
Immediately after the cutting blade b is hit on the carton a, the free pinch roller 41 descending and the kicker roller 39 pinch the carton a with the cutting blade b and at a high speed from the inside of the die set _A0 . It is configured to discharge to the outside.

As shown in FIG. 2, the link mechanism for raising and lowering the stopper pin, that is, the stopper pin 13 for intermediate mounting or the stopper pin 14 for tip mounting, includes a cam fixed to a sub shaft 50 synchronized with the main shaft 2. The first that swings by rotation
One end of the third link 51c is fixed to the shaft 30 via the link 51a and the second link 51b. That is, the cutting edge b to is nailed to the carton a, a carton a cutting blade b is not nailed only when the keep stopping the upper mold die set A ₁ of the mold die set A _0, the first link 51a the second link 51b, the third link 51c, to swing the swinging link 29 via the shaft rod 30 to lower the stopper pin above die set a ₁ via a lift main plate 17 at the same time.

Further, the link configuration for lowering the pinch roller 41 is the same as the link configuration for lowering the stopper pin. That is, as shown in FIG. 2, a sub shaft synchronized with the main shaft 2
The first link 52a, the second link 52b, the third link 52c, the fourth link 52d, and the fifth link which swing by the rotation of the cam fixed to 50.
A support rod 53 that supports the pinch roller 41 via 52e is provided so as to be able to swing appropriately. Behind the kicker roller 39, a discharge base 54 for discharging the carton a is provided.

In the figure, reference numeral 55 denotes a coil winding machine for rotatably providing a strip-shaped and coiled metal plate p; 56, a mechanism for changing the progress of a carton a with a cutting blade b; 57, a belt conveyor; 58, a cutting blade b Bundling mechanism for bundling the attached carton a into an appropriate number,
59 is a roller conveyor.

[Action]

First, the case where the carton a contacts the intermediate mounting stopper pin 13 will be described. That is, when the cutting blade b is hit at an appropriate position in the middle of the carton a, when the hitting position is what cm and mm from the tip of the carton a,
When hitting the cutting blade b at the intermediate position, first, the carton a is raised so that the carton a does not come into contact with the tip mounting stopper main portion 23 (see FIG. 23). Then, the pinion 20 is appropriately rotated, and the front-rear adjustment plate 18 is adjusted back and forth via the rack 19 to set it at a predetermined position. Further, in order for the cut surface of the cutting blade b to protrude from the corner of the box-shaped carton a by the same width depending on the finishing condition of the carton a and the shape of the carton a, it is necessary to previously set the middle of the left and right sides. Although it is necessary to slightly shift the mounting stopper pins 13, 13, in this case, the independent front and rear adjustment plates 21, 21 are appropriately adjusted back and forth by appropriate rotation of the screw rods 22, 22.

Here, a description will be given of an operation process of the mold part A corresponding to the attachment of the cutting blade b to the carton a. The cutting blade b that has been pierced between the punch 12 and the upper blade 5 in the pre-processing is described.
Is sent by the stepping motor Ms in one step (feed amount controlled by appropriately adjusted pulse signals).
In practice, feed rates in the hundreds of millimeters can be obtained. The width of the one step is set to the second
On the left side of the figure, the cutting blade b is fed by a desired length. Therefore, first, raised the lower die set A _2, lower blade 6 and the metal plate feed guide 10 is increased. Then, the upper surface of the metal plate feed guide 10 abuts on the lower surface of the upper blade 5, and the tip of the metal plate p is sandwiched between the lower surface of the upper blade 5 and the metal plate feed guide 10. This is to make it easier to cut the metal plate p. Immediately after this, the tip of the metal plate p is cut by the rising lower blade 6 and the upper blade 5, and further rises as the cutting blade b while being held by the magnet provided on the upper surface of the lower blade 6 (the first blade). See Figure 21).
When this rises from the left side, by a drive belt 34 and the free roller 38 of the transfer press structure C ₃ cartons a,
Carton a is sent, through the upper mold die set in flat perforations 8 of A _1, already at the tip of the lowered, intermediate mounting the stopper pin 13, 13 is in a state where the carton a stops . Then, the lower blade 6 rises and the punch 12
Accordingly, at the tip of the metal plate p, then holes break through the portion which becomes the cutting blade b to be cut is penetration, the pierce punch 12 tip, the upper mold die set in a punch hole 5a of the upper knife 5 A ₁ to go into. When the lower die set A ₂ further rises, the cutting blade b held by the lower blade 6 and kept rising
But are nailed to the carton a waiting remains stopped by the upper mold die set within flat perforations 8 of A _1, the cutting blade b is secured to the carton a. The reason for the fixation in this way is that the carton a has a certain thickness and the cutting blade b has a small thickness. Such sticking Upon completion, the stopper pin 13, 13 is increased for the intermediate mounting, by the cutting blade b with the cartons a is transported pressing structure C _3, when it is transported to the right in Figure 23, said transfer press structure than feed fast as C _3, a kicker roller 39 by the kicker motor 40 of the discharge part D of several times faster, by the pinch roller 41, the rapidly mold die set a within _0, as blown to the right in FIG. Is discharged. Thus, lower blade 6, i.e., all steps of the lower die set A ₂ rises to exit, then the process of lowering the lower die set A _2. First, at the beginning of the lowering step, the piercing punch 12 that has entered the upper blade 5 is lowered. Further, when the lower blade 6 is lowered, the metal plate feed guide 10 is separated from the lower surface of the upper blade 5 this time. Then, the burr-like projection of the metal plate p protruded by the piercing punch 12 comes out of the hole of the upper blade 5.
At this time, the lower blade 6, i.e., the process of lowering the lower mold die set A ₂ is completed. Immediately before the completion, the metal plate p is sent one step (one feed amount) to the left side by the stepping motor Ms. Thus, one cycle of the operation is completed.

Next, when operating the stopper pin 14 for tip mounting, that is, when hitting the cutting blade b to the tip of the carton a, this time, the stopper pin 13 for intermediate mounting is not operated. Since the stopper pin 14 for attaching the front end is located in front of the carton a in the traveling direction, the stopper pin 13 for intermediate attachment may be left as it is. Further, since the mounting positions in the feed direction of the tip mounting stopper pin 14 and the tip mounting stopper main part 23 are specified, the
As shown in FIG. 25 and FIG. 25, the carton "a" is stopped at the stopper main part 23 for attaching the tip, and the cutting blade "b" is attached to the carton "a". This mounting is the same as the case where the carton a contacts the intermediate mounting stopper pin 13 described above.

〔The invention's effect〕

In the invention according to claim 1, in a mold die set A ₀ provided on the body machine frame 1, comprising a structure striking the cutting blade b carton a, formed in the mold die set A in ₀ carton A pair of left and right intermediate mounting stopper pins 13 and 13 and a tip mounting stopper main part 23 with a tip mounting stopper pin 14 for stopping the feeding of the carton a in the flat feed hole 8 for transferring a. The carton "a" is brought into contact with only one of them, and the front and rear adjustment plate 1 is capable of simultaneously adjusting the front and rear stopper pins 13 and 13 thereof.
8 and the left and right of both intermediate mounting stopper pins 13 and 13 can be adjusted independently, and both intermediate mounting stopper pins 1
In each case, the independent front and rear adjustment plates 21 and 21 respectively attached with the cutting blade mounting device to the carton provided on the vertically movable main plate 17 can be used for the tip or intermediate mounting in any case. As a result, it is always possible to strike the carton a very precisely at the desired position.

To explain this in detail, when the cutting blade b is hit at an appropriate position in the middle of the carton a, when the hitting position is cm and mm from the tip of the carton a, the front-rear adjustment plate 18 is adjusted back and forth. The cutting blade b can be set at a predetermined position, and the cutting blade b can be hit at a desired position on the carton a.
Further, even if the finished condition of the carton a or the shape of the carton a is not symmetrical, the cut surface of the cutting blade b can be adjusted by appropriately adjusting at least one of the pair of left and right independent front and rear adjustment plates 21 back and forth. But at a desired position so as to protrude all the same width from the corner of the box-shaped carton a,
There is an effect that the cutting blade b can be hit very accurately.

In particular, for a developed plate-like carton a, a cutting blade b
There are two types of mounting positions, one for mounting at the tip and the other for intermediate mounting. In order to use these for the same model, it is necessary to replace part of the machine entirely. There was a drawback that not only the time required for replacement or replacement but also the efficiency of the driving work was reduced by half. However, the present invention solves this problem. Two types of products are available for the first time, and the effect is extremely large.
Also, since the carton a is brought into contact with only one of the intermediate mounting stopper pin 13 and the tip mounting stopper main portion 23 with the tip mounting stopper pin 14, the operation of contacting only one of the cartons is assured. In addition, the attachment of the cutting blade b to the carton a can be extremely easily performed at the front end and the intermediate position, and the working efficiency can be greatly improved.

Then, in the invention according to claim 2, in flat feed hole 8 formed in the mold die set A ₀ provided on the body machine frame 1, to allow transferring the carton a in one direction only, and A cutting blade (b) is hit on a carton (a), and a stopper pin (13) for intermediate attachment and a stopper main part (23) for tip attachment with a stopper pin (14) for tip attachment are provided to stop feeding of the carton (a). The stopper pin 13 allows the cutting blade b to abut on the tip of the carton a at a position on the rear side in the transport direction of the carton a from the hitting position, and the tip mounting stopper main part 23 with the tip mounting stopper pin 14 is a carton. At the tip mounting position and at the tip of the carton a, the carton a can contact only one of the intermediate mounting stopper pin 13 and the tip mounting stopper main part 23. Unishi, during the cutting blade b nailed, by which the cutting blade mounting device to a carton having a transfer press structure C ₃ to press at all times predetermined pressure to the stopper pin side in front side of the transfer direction of the carton a, First, the cutting blade b can be hit at an always accurate position at the tip or middle of the carton a, and secondly, the number of hits of the cutting blade b can be increased, that is, mass production can be performed. Play.

To explain these effects in detail, the carton a
The cutting edge b is nailed by a mold die set A within _0,
And the cutting blade b with cartons a is passed through the mold die set A in ₀ is transferred in one direction, when striking the cutting blade b, cartons a, the intermediate mounting stoppers in the course of this transfer direction stopped the feed at the pin 13 or tip attachment stopper main portion 23, and because it is pressed against the stopper side at all times predetermined pressure in front of the transfer direction of the carton a by transferring the pressing structure C _3, the carton a does not shift at all in the front-rear direction even if vibration or the like occurs at the time of striking the carton a, and moves the cutting blade b to the exact position at the tip or the middle of the carton a (L from the end in FIG. 27). Distance). Thus, being able to strike at an accurate position has an extremely large effect in attaching the cutting blade b to the carton a.

Conventionally, there is a stopper, and even if feed is stopped with this, if the feed amount is increased, depending on the speed, it will inevitably rebound after colliding with the stopper, causing the return of the carton a or the cutting blade b. Since the carton a is displaced due to the vibration or the like and the position of the cutting blade b is fixed to the machine, the position of the cutting blade b on the carton a is slightly (for example, large) even in the front-rear direction. 1mm
~ 2,3 mm). This shift is caused by storing the wrap in a box-shaped carton a, pulling out the wrap, and cutting the wrap with the cutting blade b.
May not protrude from the corner, and in this case, the cutting blade b has a serious defect of no use at all.

However, in the present invention, as described above, the cutting blade b can be hit at an accurate position on the carton a.
There is an advantage that the function of the cutting blade b is sufficiently exerted when it is pulled out from the box-shaped carton a in which the wrap or the like is stored and cut, and the cutting blade b can surely cut.

In addition, since it is possible to strike at such an accurate position, even if the number of strikes per unit time is increased and the transfer speed is increased, the stopper pin is always kept at a predetermined pressure on the front side in the transfer direction of the carton a. because it is pressed to the side by the transfer press structure C _3, carton a is a stopper pin for the intermediate mount
There is no collision or return to the state of the stopper 13 or the stopper mounting main part 23. Therefore, the number of hits per unit time can be increased to improve the efficiency of hitting.

Furthermore, in the present invention, in a mold die set A in _0, since the possible transfer the cartons a in one direction only, and a carton a not putting out the cutting blade b, the carton a which nailed cutting blade b is It is always in one direction, and the carton a on which the cutting blade b has not been struck and the carton a on which the cutting blade b has been struck do not collide and collide with each other.

As described above, the stopper stop configuration and transfer pressing structure C ₃ of the carton a front end, and a one-way feed acts synergistically, a very high speed, revolutionary capable with striking of the cutting blade b to the carton a It has a special effect.

[Brief description of the drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a schematic plan view of the present invention, FIG. 2 is a side view of FIG.
Fig. 4 is a sectional view of a main part of the present invention, Fig. 4 is a longitudinal sectional view of a mold part,
FIG. 5 is a perspective view of the mold part partially cut away, FIG. 6 is a side view showing a part of the mold part, FIG. 7 is a perspective view of a main part of the mold part, and FIG. FIG. 9 is a cross-sectional view of a main part of a part where a cutting blade is hit on the tip of a carton in a mold part, FIG. 10 is an exploded perspective view of a main part of a stopper for mounting a tip,
11 is a perspective view of a positioning device, FIG. 12 is a cross-sectional plan view of FIG. 11, FIG. 13 is a partial perspective view of a front-rear adjustment plate with an independent front-rear adjustment plate, and FIG. Cutaway perspective view, fifteenth
FIG. 16 is a perspective view of another embodiment of the positioning device, FIG. 16 is a cross-sectional view of another embodiment of the fixing portion, FIG. 17 is a cross-sectional plan view of FIG. 16, and FIG. FIG. 19 is a partial cross-sectional perspective view of the embodiment, FIG. 19 is a partial cross-sectional side view of FIG.
FIG. 20 to FIG. 25 are longitudinal side views showing the operation state of the mold part,
26 is a sectional view of a main part of the present invention, FIG. 27 and FIG. 28 are state diagrams showing an operation state of the present invention, FIG. 29 and FIG. FIG. 31 and FIG. 32 are partial plan views to which a conventional defective cutting blade is attached. A ₀ ...... mold die set, a ...... carton, b ...... cutting blade, C ₃ ...... transfer press structure, 1 ...... body machine frame, 8 ...... flat feed holes, 13 ...... intermediate mounting stopper Pin, 14 ……
Stopper pin for mounting at the tip, 17 ... Main plate for elevating, 18 ... Front and rear adjustment plate, 21 ... Independent front and rear adjustment plate, 23 ... Main part of stopper for mounting at the tip.

Claims (2)

(57) [Claims] 1. A mold die set provided in a body frame of a machine, wherein a cutting blade is hit on a carton, and the carton formed in the mold die set is fed into a flat feed hole for transferring the carton. A pair of left and right intermediate mounting stopper pins to stop feeding, and a distal mounting main part with a distal mounting stopper pin are provided, and the carton is brought into contact with only one of them. A front / rear adjustment plate that can simultaneously adjust the front and rear adjustment plates that can be adjusted back and forth, and the left and right sides of the stopper pins for both intermediate mountings, and the independent front and rear adjustment plates that have the stopper pins for both intermediate mountings mounted respectively. A cutting blade mounting device for a carton, characterized in that it is provided. 2. A carton having a configuration in which a carton can be transferred in only one direction in a flat feed hole formed in a mold die set provided in a main body frame and a cutting blade is hit on the carton. A stopper pin for intermediate mounting and a main part of a stopper for distal mounting with a stopper pin for mounting the distal end, which stop the feeding of the carton when the cutting blade is hit at the intermediate position or the distal position of the carton; The pin can be brought into contact with the tip of the carton at a position on the rear side of the carton in the transport direction of the cutting blade from the cutting blade hitting position, and the tip mounting stopper main part with the tip mounting stopper pin is at the carton tip mounting position and at the carton tip. Contact can be made, and the carton can contact only one of the intermediate mounting stopper pin and the tip mounting stopper main part. To make it in, at the time of cutting blade striking the cutting blade mounting device to a carton which is characterized in that a transport pressing structure that presses at all times predetermined pressure to the stopper pin side in front side of the transfer direction of the carton.