JPH0431230A - Method and device for removing tying band of packed body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method and apparatus for removing binding cords from a package formed by binding together board materials stacked in multiple stages.

(Prior Art) Generally, when transporting or storing a large number of board materials such as cardboard, they are stacked and tightly bound with binding strings for packaging.

Conventionally, when removing the binding cord from this type of packaged item, first a part of the binding cord is separated from the packaged item to form a space between the package and the binding cord. A cutter or the like is pressed against the separated part to cut the binding cord, and the binding cord is removed from the article.

However, the binding string that tightly binds the articles is difficult to separate from the articles, so the binding string is cut at a position where it is relatively easy to separate.

Normally, in a board package consisting of an end and a flat part, it is easier to separate the binding cord from the flat part of the board than from the end of the board. Cutting is preferred. However, when cutting in this manner, there is an inconvenience that the flat portion may be damaged due to contact with a cutter or the like.

Furthermore, since a part of the binding string is separated from the packaged article, the device becomes complicated.

(Problems to be Solved by the Invention) In order to solve such inconveniences, the present invention provides a method for removing binding cords from a packaged object, which cuts the binding cords and efficiently removes the binding cords without damaging the packaged articles. The object of the present invention is to provide a device with a simple structure.

(Means for Solving the Problems) In order to achieve the above object, the method of the present invention is a method for removing binding cords from a packaged body in which board materials are stacked and bound around the outer periphery with endless binding cords. Then, a part of the end side of the plate material constituting the package is pressed by a pressing means to push a part of the plate material away from a part of the binding string to form a space between the plate material and the binding string. a step of clamping and immovably fixing the binding cord at the position where the space is formed by a clamping means;
A step of cutting the fixed binding cord with a cutting means, a step of pulling out the end portion of the cut binding cord held by the clamping means in a direction away from the package, and a step of pulling out the pulled out portion of the binding cord with a drive roller. The present invention is characterized by comprising a step of pinching the binding string between a pinch roller and releasing the pinching of the binding string by the pinching means, and a step of rotationally driving the drive roller to send out the binding string and remove it from the package.

Further, the device of the present invention is a binding cord removal device for a packaged body in which plate materials are stacked and the outer periphery thereof is tied with an endless binding cord, and a part of the plate materials constituting the packaged body is a fixing means for movably fixing to the part; a pressing means for pressing the end side of the movable plate material and pushing it away from a part of the binding string; and a space between the part of the plate material and the binding string. a clamping means for clamping the binding cord at the position of the space formed in the space, a transfer means for moving the clamping means in a direction away from the package, a cutting means for cutting the clamped binding cord, and a cutting means for cutting the clamped binding cord; When the cut end is separated from the package by the transfer means while the cut end is being held by the holding means, a drive roller and a pinch roller are provided which hold the cut end, and the drive roller is rotationally driven. It is characterized by comprising a sending means for sending out the binding string.

(Operation) When using the method of the present invention, first, a part of the end side of the plate material constituting the package is pressed by a pressing means. Thereby, a step is formed in a part of the plate material constituting the package, and a space is formed between the binding cord and the plate material by the step. Subsequently, the binding string at the spatial position is held by the holding means. The clamping means immovably fixes the binding cord by clamping the binding cord. Next, the binding string at the spatial position is cut by the cutting means. After that, the binding string is
With the cut end portion being held by the holding means, the end portion is pulled out in a direction away from the package. Subsequently, the part of the binding cord pulled out in the direction away from the package is held between a drive roller and a pinch roller,
At the same time, the ends of the binding string held by the holding means are released. Then, by rotationally driving the drive roller, the binding cord is sent out, and the binding cord of the package containing the plate material is removed from the package.

Furthermore, when using the device of the present invention, the fixing means includes:
The package is fixed in a state where a part of the plate material constituting the package is movable relative to other parts.

The pressing means presses a part of the end side of the plate material constituting the package which is movable by the fixing means. As a result, a step is formed in the packed plate material, and a space is formed between the plate material and the binding string due to the step difference. The clamping means is
By pinching the binding string, the binding string is immovably fixed. The cutting means cuts the binding string while the binding string is being held by the clamping means. The transfer means moves the holding means holding the binding string in a direction away from the package. The transfer means moves the clamping means to pull out the binding cord in a direction away from the plate material, and the drive roller and pinch roller of the delivery means pinch the pulled-out portion of the binding cord. Further, the feeding means rotates the drive roller to feed out the binding string, thereby removing the binding string from the packaged body in which the plate material is packed.

(Example) An embodiment of the present invention will be described with reference to the drawings.

Figure 1 is an explanatory side view of this implementation device, and Figure 2 is the first
FIG. 3 is an enlarged explanatory view of the main parts of the present embodiment, FIG. 4 is an explanatory diagram showing the clamping means of this embodiment, and FIG. 5 is an explanatory diagram of this embodiment. FIGS. 6(a) to 6(f) are explanatory views showing the cutting means of this embodiment.

In this embodiment, as shown in FIGS. 1 and 2, plate materials A are stacked and their outer peripheries are bound with endless binding strings B, and the binding strings B are removed from the packed body X. It is.

First, the binding cord removal device of this embodiment for removing the binding cord B will be explained with reference to FIGS. 1 to 5.

In FIGS. 1 and 2, 1 is a fixing means for fixing the package X, 2 is a pressing means for pressing the end side of the plate material, and 3 is a drive roller 4 equipped with a rotation drive device (not shown); This is a means for sending out the binding string B, which is composed of a pinch roller 6 that is lowered by a cylinder 5 so as to come into contact with the driving roller 4. Furthermore, 7 is a clamping means for clamping the binding cord B, and 8 is a cutting means for cutting the binding cord B when it is clamped by the clamping means 7. The clamping means 7 and the cutting means 8 are installed inside the pressing means 2.

Further, as shown in FIGS. 1 and 2, a mounting table 9 on which the package X is placed is provided between the fixing means 1 and the pressing means 2 where the package X is placed. It is being The mounting table 9 is connected to a roller conveyor 9a that carries the package X into and out between the fixing means 1 and the pressing means 2, and the package X transported on the roller conveyor 9a.
is locked at the position of the mounting table 9 by a stopper 9b. The stopper 9b can be protruded and retracted by the cylinder 9c, and is protruded when the package X is carried in and retracted downward when the package X is carried out. When the package X is placed on the mounting table 9, the fixing plate 10 provided above is lowered to press and fix the package X from above. The fixed plate 10 can be lowered by a cylinder 11. The mounting table 9 has a groove 12 formed at a position corresponding to the binding string B when the package X is placed, and the fixing plate 10 has a groove 12 formed at a position corresponding to the binding string B of the package X. A groove 13 is formed. As a result, the package X becomes
The binding string B is made slidable, and only the plate material A is fixed to the mounting table 9 and the fixing plate 10.

Next, the fixing means 1 will be explained in detail.

As shown in FIGS. 1 and 2, the fixing means 1 is located at a position facing the end of the plate A around which the binding string B is wound when the package X is placed on the mounting table 9. A pair of presser blocks 14 are provided. The presser block 14 is the packaging body
A recess 15 is formed on the side facing . Due to the recess 15, when the package X comes into contact with the presser block 14, the plate material A at the position corresponding to the recess 15 becomes slidable. The presser blocks 14 are each supported by a pair of support stands 17 fixed on the main body frame 16. The presser block 14 is attached to the rail 1 provided on the support base 17.
8 and is normally fixed in place by a fixing member 19. As a result, the position at which the presser block 14 presses the package X is
It can be adjusted as appropriate depending on the size.

Next, the pressing means 2 will be explained in detail.

As shown in FIGS. 1 and 2, the pressing means 2 includes a pair of pressing blocks 20 provided at a position facing the presser block 14, and the pressing blocks 20 are placed on the mounting table 9.
Transfer means 21 for transferring toward the package X placed on top
It is equipped with The transfer means 21 includes a moving table 22 that is movable toward the package X, and a cylinder 23 that drives the moving table 22. The tx moving table 22 is provided on the main body frame 16 and is slidable along a rail 24 extending in the direction toward the fixing means 1.

The pressure contact block 20 is provided via a rod 25 supported by the movable table 22, and is urged in the direction toward the presser block 14 by a spring 26 included in the rod 25. As a result, the pressure contact block 2
The impact when the plate 0 contacts the plate material A is absorbed, and damage to the plate material A can be prevented. The movable table 22 is moved along the rail 24 by the cylinder 23, whereby the press block 20 is moved forward and backward toward the package X. A convex portion 27 for pressing a part of the package X is formed on the side of the press block 20 facing the package X. The convex portion 27 is connected to the presser block 14.
It is formed in a shape corresponding to the recess 15 of. The convex portion 2
7, when the package X comes into contact with the holding block 14 and is pressed by the pressing block 20, the plate material A at the position corresponding to the recess 15 slides and protrudes toward the holding block 14, and then the plate material A A part of the pressure contact block 20 is recessed corresponding to the convex portion 27 of the pressure contact block 20. As a result, as will be described later, a space is formed in the package X between the plate material A and the binding cord B, which are recessed by the convex portion 27.

Next, the holding means 7 and the cutting means 8 will be explained.

Both the clamping means 7 and the cutting means 8 are provided integrally with a pressure block 20, as shown in FIGS. Move towards body X. As shown in FIG. 3, the holding means 7 and the cutting means 8 are provided integrally within the pressing means 2, with the holding means 7 adjacent to the first substrate 28 and the cutting means 8 adjacent to the second substrate 29. It is being As shown in FIGS. 3 and 4, the clamping means 7 clamps the upper part of the binding cord B at a spatial position formed by the plate material A and the binding cord B by the convex portion 27 of the pressure contact block 20. It includes a first clamping part 30.31 and a second clamping part 32.33 which clamps the lower part of the binding string B in the spatial position. Furthermore, each first clamping part 30.31 and each second clamping part 32.33 are each through groove 3 formed in the first substrate 28 by penetrating the front and back surfaces thereof.
4.35.36.37 and protrudes outward. Furthermore, these clamping parts 30.31°32,3
The outwardly projecting portion of the first substrate of No. 3 is provided with six pawls 38.39 each having a convex tip and recesses 40.41 having a concave tip corresponding to each of the six pawls 38.39. and
When they come into contact with each other and pinch the binding string B, the binding string B is surely held. As shown in FIG. 4, the clamping portions 30.31 of both cylinders 1 are guided by rails 42, 43 provided along the direction in which the through grooves 34.35 extend, and connect movable connecting portions 44.45. are connected to each other through. A rack 46.4 is installed approximately at the center of the connecting portion 44.45.
7 are provided, the racks 46, 47 facing each other and both meshing with the pinion gear 48. Similarly, the gripping parts 32 and 33 of the painting brush 2 are connected to the through grooves 36 and 37.
are connected to each other via movable connecting portions 51.52 guided by rails 49.50 provided along the extending direction. Ranks 53, 54 are provided approximately in the center of the connecting portions 51, 52, and the racks 53, 54 are opposed to each other and both mesh with the pinion gear 55.

As a result, the clamping means 7 holds the pinion gear 48.
By rotating 55, the six claws 38.degree. 39 and the recesses 40, 41 are moved in directions where they come into contact with and separate from each other, so that the binding string B can be held or released.

Further, the cutting means 8 includes the first clamping part 30.31 and the second clamping part 32, 33, as shown in FIGS. 2 and 3.
A cutter 56 is provided for cutting the binding cord B at approximately the center thereof when the binding cord B is held between the two. Furthermore,
The cutter 56 cuts the second substrate 29 and the first substrate 2.
Each through groove 57.5B formed through the front and back sides of 8
, 59.60 and protrudes outward. As shown in FIG. 5, the cutter 56 has a movable piece 63.64 that is guided by a rail 61.62 provided on the second substrate 29 along the direction in which the through groove 57.58 extends. cylinder 65.66 rond lower, through
68 is connected to the tip.

Thereby, the cutting means 8
By extending the rods 67 and 6B, the canter 56 can be moved in the direction in which it comes into contact with the binding string B, and the binding string B can be cut.

Next, a method for removing the binding string B in this embodiment device will be explained with reference to FIGS. 6(a) to 6(f).

As shown in FIG. 6(a), the pressure contact block 20;
The package X is positioned between the press block 20 and the pressing block 14 facing the press block 20, with the end of the package X facing the plate material around which the binding string B is wound.

Subsequently, as shown in a side view in FIG. 6(b), the fixing plate 10 descends and presses the upper side of the package X,
The package X is held between the mounting table 9 and the mounting table 9. As a result, the package X is compressed and fixed from above and below. Further, grooves 13 and 12 are formed in the fixed play area 0 and the mounting table 9 at positions corresponding to the binding strings B when the package X is placed.
is formed, so even if the package X is held between the fixing plate 10 and the mounting table 9, the loose binding string B can be easily slid over the package X. It becomes like this. Then, the pressure contact block 20 is placed in the package
The convex part 27 is brought into pressure contact with a part of the plate material B constituting the package X, and a part of the plate material B is pushed into the recessed part 15.

As a result, as shown in FIG. 6(C), a step is formed in a part of the plate A constituting the package X, and the step creates a space C between the binding string B and the plate A. is formed.

Next, as shown in an enlarged view of the part where the space C is formed in FIG. Part 30.31
and held by the second holding parts 32 and 33. Thereby, the binding string B is fixed in an immovable state. and,
The binding string B held by the holding means 7 is cut by the cutter 5.
Cut by 6.

Subsequently, as shown in FIG. 6(e), the first clamping part 30° 31 of the clamping means 7 released the cut binding cord B, while only the second clamping part 32, 33 was clamped. maintain the condition. Then, the holding means 7, which is holding the end of the binding string B, is moved in a direction away from the plate material A by the transfer means 21. As a result, the cut binding string B
is pulled out in the direction away from the plate material A. Then, the pinch roller 6 at the upper position corresponding to the pulled-out binding string B is moved to the drive roller 4 at the lower position.
descend towards.

Next, as shown in FIG. 6(f), the second clamping part 32, 33 of the clamping means 7 releases the binding cord B, and the pulled out part of the binding cord B is connected to the drive roller 4 and the pinch roller. 6. Then, the driving roller 4 is driven to rotate and the binding string B is sent out, whereby the binding string B is removed from the plate material A.

Note that the pinch roller 6 has, as shown in FIG.
A sensor 69 is provided. The sensor 69 detects the second pinch roller 6 when the pinch roller 6 descends in the state shown in FIG.
The presence or tension of the binding cord B pulled out by the clamping parts 32 and 33 is detected.

Thereby, the state in which the binding cord B is pinched between the pinch roller 6 and the drive roller 4 is detected, and the drive roller 4 is started.

(Effects of the Invention) As is clear from the above, according to the method and device of the present invention, a part of the end side of the plate material constituting the package is pressed by the pressing means, and the package is Since a step is formed in a part of the plate material constituting the holder, a space can be easily formed between the binding cord and the plate material at the position of the step. Since the binding cord at the spatial position is immovably fixed by the clamping means, the binding cord at the spatial position can be easily and reliably cut by the cutting means.

In this way, a space is formed between the binding string and the plate material, and the cutting operation is performed at the space, so that damage to the plate material can be prevented.

Furthermore, the cut end of the binding cord is pulled out in a direction in which the end is separated from the package while being held by the holding means, and then the drive roller and the pinch roller are pulled out. The binding string can be easily and efficiently sent out simply by holding the binding string and rotationally driving the drive roller.

Therefore, according to the present invention, there is provided a method for removing a binding cord from a packaged body, which cuts the binding cord and efficiently removes the binding cord without damaging the packaged articles, and also provides a device having a simple structure. can do.

[Brief explanation of drawings]

Figure 1 is an explanatory side view of this implementation device, and Figure 2 is the first
FIG. 3 is an enlarged explanatory view of the main parts of the present embodiment, FIG. 4 is an explanatory diagram showing the clamping means of this embodiment, and FIG. 5 is an explanatory diagram of this embodiment. FIGS. 6(a) to 6(f) are explanatory views showing the cutting means of this embodiment. X... Packing body A... Plate material B... Binding string C... Space D... End portion 1... Fixing means 2... Pressing means 3... Delivery means 4... Drive roller 6...pinch roller 7...pinching means 8...cutting means 21...transfer means Patent applicant Hokkai Seikan Co., Ltd.

Claims (1)

[Scope of Claims] 1. A method for removing binding cords from a package in which plate materials are stacked and the outer periphery thereof is tied with endless binding cords, the method comprising: a step of pressing the part with a pressing means to push a part of the plate material away from a part of the binding string to form a space between the plate material and the binding string, and pinching the binding string at the position where the space is formed. a step of clamping and immovably fixing it by a means, a step of cutting the fixed binding cord by a cutting means, and a step of pulling out the end of the cut binding cord held by the clamping means in a direction away from the package. a step of pinching the pulled-out portion of the binding cord between a drive roller and a pinch roller and releasing the clamping of the binding cord by the clamping means; and a step of rotationally driving the driving roller to send out the binding cord from the package. A method for removing a binding cord from a package, the method comprising the step of removing a binding cord from a package. 2. A binding cord removal device for a package made by stacking plate materials and binding the outer periphery with an endless binding cord, in which a part of the plate materials constituting the package is movable relative to other parts. a fixing means for fixing the movable plate material to a part of the binding string, a pressing means for pressing the end side of the movable plate material and pushing it away from a part of the binding string, and a space formed between a part of the plate material and the binding string. a clamping means for clamping the binding cord at the position; a transporting means for moving the clamping means in a direction away from the package; a cutting means for cutting the clamped binding cord; When the binding cord is separated from the package by the transporting means while being clamped by the clamping means, the feeding means includes a drive roller and a pinch roller that clamps the end portion, and rotates the drive roller to send out the binding string. A binding cord removal device for a package, characterized by comprising: