JP2009269639A - Banding wrapping method and apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a banding wrapping method and apparatus whereby a strip-shaped craft paper can be tightly banded across the four sides of a stack of objects to be packaged, such as books with gaps between them. <P>SOLUTION: The banding wrapping method and the apparatus for achieving the method are provided. A craft paper A to be cut is placed over the upper, front, and rear faces of an object W to be packaged while a predetermined compressing force F is applied to the upper face of the object W from above in the lifting step of a lift table 3a. Subsequently, with compressing force F applied to the upper face of the object W, the rear end of the craft paper A cut to a predetermined length is folded onto the lower face of the object W. The leading end part A1 of the craft paper A is folded upon the folded rear end part. Then, with the object W held in the compressed state, a pressure-sensitive adhesive tape is applied to the lower face of the object W along the boundary formed by folding the craft paper upon the lower face of the object W. Thus, the banding wrapping of the object is completed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a wrapping and packaging method and apparatus capable of tightly wrapping and wrapping strip-shaped kraft paper on four surfaces of an article to be packaged formed by stacking articles such as finished books having gaps.

When transporting articles such as magazines and books (hereinafter referred to as “finished books”), they are stacked, arranged in a rectangular parallelepiped shape, and then wrapped with kraft paper.
As a packaging method of a packaged article, a six-sided packaging in which all six sides of a packaged article W are packaged with kraft paper is known. Fig. 6-1 to Fig. 6-3 show the external appearance when the finished product P is stacked and covered with kraft paper A on the six sides of the packaged object W, which is arranged in a rectangular parallelepiped shape, and the adhesive tape B is pasted. Indicated. On the other hand, FIGS. 7-1 to 7-3 show the appearance of the package W in which the same package W is used, the kraft paper A is covered on four surfaces except both sides, and the adhesive tape B is packaged. . This packaging method is called wrapping wrapping and has both side surfaces not covered with the kraft paper A, and the adhesive tape B has only to be attached to one place on the lower surface of the package W. This is an economical packaging method. This wrapping packaging is suitable for conveying articles such as folded newspapers and flyers in addition to the finished books.

A dual-purpose packaging device that enables both types of packaging is disclosed (Patent Document 1).
JP 2004-67104 A

However, the packaging device described in Patent Document 1 is a dual-purpose packaging device that enables banding packaging and six-sided packaging, and on the four surfaces of a packaged article W that is a stack of finished books having gaps, There was a problem in tightly wrapping kraft paper A.
Hereinafter, problems in the case of wrapping and wrapping with the packaging device described in Patent Document 1 will be described in detail.
FIG. 8-1 is a perspective view showing an example of a finished book P having a gap between papers, and FIG. 8-2 is a side view showing an example of an article W to be stacked. To book (P) is possible, as compared to the binding margin side P _1, there is a large gap in the anti-binding margin side P _2. If the gap of the finished book P is not reduced and wrapping is performed, the kraft paper becomes loose.

FIG. 9 shows a main part of the packaging device described in Patent Document 1, and FIG. 10 shows problems when the packaging device is used.
In FIG. 9, in the step of raising the article W to be packaged placed on the lift table 3a from the lower table position to the upper table position, the upper surface of the article W and the front and rear surfaces before being cut to a predetermined length. Cover with Kraft paper A. Note that the article W to be packaged placed on the lift table 3a at the position indicated by the solid line is carried into the apparatus by the carry-in conveyor from the depth direction, stopped by hitting a stopper (not shown), and then aligned by the width aligner. The pusher is pushed in the front-rear direction by one pusher (not shown) and stored in a predetermined position on the lift table 3a.
(1) However, the packaging device described in Patent Document 1 uses the upper presser 20 in order to prevent the craft paper A from shifting in the lifting process of the lift table 3a. It is not considered to reduce the gap between the articles of the package W.

  The kraft paper supply unit 7 includes a payoff reel 7a for rewinding the kraft paper A wound in a roll shape, and the kraft paper A supplied from the payoff reel 7a is a slitter according to the width of the packaged object W. After being slit to a predetermined width at 7b, a dancer roll 7c for removing slack, a pinch roll 7d for feeding out kraft paper A, and a cutter 7e capable of cutting kraft paper A in the width direction are supplied onto an apron 7f that can be opened and closed. The

According to such a kraft paper supply unit 7, although a predetermined length of kraft paper necessary for banding can be supplied, it is difficult to reduce the gap between the articles of the stacked packages W.
(2) If the tip A1 of the kraft paper A is grasped by the tip gripping portion 12 and the craft paper A is pulled by the pinch roll 7d of the kraft paper supply portion 7 as the gap between the articles of the article W to be packaged is reduced, The paper is torn or the leading edge A1 of the kraft paper A is detached from the leading edge gripping portion 12, and the craft paper A cannot be covered on the four surfaces of the package W.

That is, the tip gripping portion 12 incorporates a spring, and the spring force is set so as to release the tip portion A1 of the craft paper A that has been gripped when a predetermined tensile force is applied to the craft paper A.
After the lifting step of the lift table 3a, the rear end A2 of the kraft paper A formed by cutting to a predetermined length is folded on the lower surface of the package W, and the front end A1 is subsequently attached to the rear end A2. Folding is done. The process is shown in FIG.

The wedge member 21 in the figure is inserted into the rear side of the lower surface of the article to be wrapped W, and the rear end A2 of the kraft paper A is folded while lifting the rear part of the lower surface of the article to be wrapped W. Using the second pusher (not shown) to move the package W in the forward direction with the rear side of the lower surface of the article W lifted, and folding the tip A1 on the rear end A2. (See FIGS. 10 (c) and 10 (d)).
In addition, when folding the kraft paper A on the lower surface of the article to be packaged W, the second pusher that moves the article to be packaged W in the forward direction has a push cylinder and a push member, and is installed in the upper stage. (This is different from the push cylinder and the push cylinder for moving the wedge member 21 forward and backward.)

After the process shown in FIG. 10, the adhesive tape B is applied across the boundary generated by folding in the middle of the carry-out path for carrying the article W to be carried out of the apparatus, and the wrapping packaging is completed.
(3) However, the above-described upper presser 20 is assumed to be used in the lifting process of the lift table 3a in order to prevent the craft paper A from shifting, and is not used in the subsequent processes.
(4) In order to use the upper presser 20 after the lifting step of the lift table 3a, it is necessary to have a structure that can cooperate with a push member of a second pusher (not shown).

Therefore, in the packaging apparatus described in Patent Document 1, it is not possible to tightly band the belt-shaped kraft paper on the four surfaces of the articles to be packaged in which the articles having gaps are stacked in a rectangular parallelepiped shape.
As a result, when carrying an article to be packaged, articles such as finished books that are stacked from both sides not covered with kraft paper may come out.
The present invention eliminates the above-mentioned problems of the prior art, and a belt-wrapping method and apparatus capable of tightly belt-wrapping belt-shaped kraft paper on four surfaces of an article to be packaged formed by stacking articles having gaps. The purpose is to provide.

  As a result of intensive studies on the banding method in which kraft paper is placed on the four surfaces of the packaged object, the present inventors adopted the basic structure described in Patent Document 1 and applied a predetermined compressive force on the upper surface of the packaged product from above. It is found that the above-mentioned problems can be solved by arranging a press having a press plate to add the upper plate and a structure in which the press plate of this press and the push member of the second pusher can cooperate, and based on this knowledge It came to make this invention.

That is, the present invention is as follows.
[Claim 1] An article to be packaged, in which articles having gaps are stacked, is carried into the apparatus by an entry side device arranged in the lower stage, and an article to be packaged that is carried into the apparatus and placed on a lift table is placed in the lower stage. After the lift table is lifted from the table position to the upper table position by the lift device, the covering object excluding both sides is in the middle of the path from the unloading device arranged at the upper stage to the unloading device. A wrapping method for wrapping kraft paper on four sides of a package,
In the lifting step of the lift table, the upper surface of the packaging object is covered with kraft paper before being cut on the upper surface and the front and rear surfaces of the packaging object while applying a predetermined compressive force from above. Folding the rear end of the kraft paper formed by cutting to a predetermined length on the lower surface of the article to be packed with the compressive force applied to the upper surface, and the front end of the kraft paper at the folded rear end After that, the adhesive tape is applied across the boundary generated by the folding of the lower surface of the packaging object while the packaging object is held in a compressed state, and the wrapping packaging is finished. A wrapping packaging method characterized by that.
[Claim 2] An article to be packaged, which is formed by stacking articles having gaps, is carried into the apparatus by an entry side device arranged at the lower stage, and an article to be packaged carried into the apparatus and placed on a lift table is placed at the lower stage. After the lift table is lifted from the table position to the upper table position by the lift device, the covering object excluding both sides is in the middle of the path from the unloading device arranged at the upper stage to the unloading device. A wrapping and wrapping device for wrapping kraft paper on four sides of a package, wherein a kraft paper supply unit capable of supplying a predetermined length of kraft paper required for wrapping and a kraft paper leading end with a predetermined force As a tip gripping part that can be gripped, a mechanism for folding the rear end part of the kraft paper formed by cutting to a predetermined length, and a folding means for folding the front end part of the kraft paper to the folded rear end part The encapsulation A second pusher having a push member for horizontally moving an object in a forward direction, and a press having a press plate for applying a predetermined compressive force to the upper surface of the package from above, and a press plate of the press A second pusher having a push member having a movable structure, and further, an adhesive tape is applied across a boundary generated by folding the packaged object while the packaged object is held in a compressed state, and the banded package A band wrapping apparatus, wherein a tape affixing mechanism for ending the operation is arranged in the upper stage.
[Claim 3] The press comprises a press plate composed of left and right flat plates arranged with an opening provided in a central portion in the width direction, a reinforcing member for connecting and reinforcing the rear portions of the left and right flat plates, The band wrapping apparatus according to claim 2, further comprising a compression cylinder mounted in a central portion in the width direction.
[Claim 4] The press is further provided with a guide member which is slidably guided in the vertical direction at two positions in the front part of the left and right flat plates and in two positions in the width direction of the rear part of the reinforcing member. The banding packaging apparatus according to claim 3.
[Claim 5] The band wrapping apparatus according to claim 3 or 4, wherein the press further includes a cylinder for preventing craft paper slippage at the center of the left and right flat plates.
[Claim 6] The structure of the push member of the second pusher includes a lower horizontal member having a length capable of pushing a lower end of the rear surface of the packaged object over the width direction, and a width direction of the lower horizontal member. The front and rear longitudinal members having a length longer than the height dimension of the packaged object having an inverted T-shape with the center part fixed, and the rear surface upper end part depending on the height of the packaged object A three-member configuration of the upper transverse member having a length that can be pushed over the direction,
The longitudinal members of the front and rear are formed with a width smaller than the width of the opening provided in the center in the width direction of the press plate of the press, and the longitudinal direction is within the opening provided in the center of the press plate in the width direction. The front and rear vertical members are connected to form a gap of a predetermined interval, a push cylinder is fixed to the rear vertical member, and the front vertical member is attached to the rear surface of the package. The band-wrapping packaging apparatus according to any one of claims 2 to 5, wherein the band-wrapping packaging apparatus is configured to push the center portion in the width direction over the height direction.
[Claim 7] The upper transverse member is suspended from a press plate of the press via a roller, and has a structure that moves up and down in conjunction with the elevation of the press plate. The wrapping packaging device as described.
[Claim 8] The upper transverse member has two members divided in the width direction, a width direction passing member and a spacing adjusting member, and is divided by the width direction passing member and the spacing adjusting member. The two members have a structure in which a concave portion that houses the previous vertical member is formed in the central portion in the width direction and is connected, and the width direction passing member is formed in a gap formed between the front and rear vertical members. The banding and packaging apparatus according to claim 6, wherein the banding and packaging apparatus is mounted.
[Claim 9] The delivery device has an upper and lower conveyor belt, and when the push cylinder of the second pusher is extended, the article to be packaged is sandwiched between the upper and lower conveyor belts. The upper and lower unloading conveyors have a structure that can be unloaded while being held in a compressed state, a lower conveyor belt is provided so as to be able to unload the packaged items to the outlet, and an upper conveyor belt is disposed on the uncovered conveyor belt. The band-wrapping packaging apparatus according to any one of claims 2 to 8, wherein the banding packaging apparatus is provided up to the middle of a carry-out path for carrying the package to an outlet.
[Claim 10] The tape affixing mechanism has a tape supply apron that can be raised from a standby position below the upper table position to a tape affixing position above the upper table position. The banding packaging apparatus of any one of Claims 2-9.
[11] The mechanism for folding the rear end of the kraft paper includes a flat plate with a folding roller, a pushing cylinder for horizontally moving the flat plate with the folding roller in a forward direction, and a roller guide raising / lowering cylinder. The folding plate with the folding roller is raised from the standby position to the craft paper folding position, and then moved horizontally in the forward direction in a space formed by tilting the rear part of the lift table. It comprises, The banding packaging apparatus of any one of Claims 2-10 characterized by the above-mentioned.

  According to the present invention, a press having a press plate that applies a predetermined compressive force from above to the upper surface of the package is arranged in the upper stage, and the press plate of the press and the push member of the second pusher can cooperate with each other. In addition, even after covering the four sides of the article to be wrapped with a strip of kraft paper, while holding the article to be packed in a compressed state, affixing an adhesive tape across the boundary between the folded layers Since it is set as the structure which complete | finishes, a strip | belt-shaped kraft paper can be tightly banded to a package. Therefore, when transporting a packaged product that is wrapped in a band, it is possible to prevent articles such as finished books from coming out from both side surfaces that are not banded.

DESCRIPTION OF EMBODIMENTS Hereinafter, a banding and packaging method and a banding and packaging apparatus according to the present invention will be described with reference to the drawings. FIGS. 1-1 to 1-4 are side views showing the process up to folding the kraft paper in the method of the present invention. In FIG. 1-1, the lift table 3a at the lower table position is indicated by a two-dot chain line, and the lift table 3a at the upper table position is indicated by a solid line.
As shown in FIG. 1-1, the band-wrapping method according to the present invention is a process of raising the article W to be packaged placed on the lift table 3a from the lower table position to the upper table position. While applying a compressive force F from above to the upper surface of the package W, the kraft paper A is placed on the upper surface and the front and rear surfaces of the package W. In addition, as shown in FIGS. 1-2 to 1-4, the rear end portion of the kraft paper A formed by cutting to a predetermined length while applying a predetermined compressive force F to the upper surface of the package W. A2 is folded into the lower surface of the article to be wrapped W, and the leading end A1 of the kraft paper is folded over the folded rear end A2.

After that, while holding the packaged item W in a compressed state, the adhesive tape was applied across the boundary formed by folding the lower surface of the packaged item W to finish the wrapping packaging.
FIG. 1-4 shows a state where the push member 5a of the second pusher 5 is advanced and the leading end A1 of the kraft paper A is folded over the folded rear end A2. Fig. 5 shows a state where the article W is sandwiched between the upper and lower conveyor belts 6a and 6b and carried out in the forward direction.

In order to realize such a method of the present invention, the banding and packaging apparatus according to the present invention has a press 4 having a press plate 4a for applying a predetermined compressive force F from above on the upper surface of the article W to be packaged. The press plate 4a and the push member 5a of the second pusher 5 can cooperate with each other.
In addition, the packaging material W is sandwiched between the upper and lower conveyor belts 6a and 6b of the delivery device 6 and the packaging material W is held in a compressed state until the adhesive tape B is applied and the wrapping packaging is completed. I tried to keep it.

Next, a description will be given of a banding and packaging apparatus of the present invention example that can realize the method of the present invention. FIG. 2 is a side view showing the overall configuration of the band wrapping apparatus for realizing the method of the present invention, and FIG. 3 is a plan view showing the arrangement of the entry side apparatus 1 and the exit side apparatus 6 used in the present invention.
Each position of (a) and (b) in FIGS. 2 and 3 indicates a position when the article W to be packaged before banding is carried into the apparatus by the carry-in conveyor of the entry side apparatus 1. That is, the article W to be packaged formed by stacking articles placed on the conveyor belt 1a is carried in by the carry-in conveyor 1, hits the stopper, and stops at the position (a). Next, the articles W to be packaged are aligned in width, pushed in the forward direction by the push member 2a of the first pusher 2, and placed on a predetermined position indicated by (b) on the lift table 3a. The article W to be packaged at the lower table position indicated by (B) has a rectangular parallelepiped shape. In the subsequent steps, the kraft paper is tightly banded on the four surfaces of the articles W to be stacked in a rectangular parallelepiped shape, which is the banding and packaging apparatus of the present invention example.

The entry side device 1 having the first pusher 2, the lift device 3 for raising and lowering the lift table 3a, the kraft paper supply unit 7 for supplying the kraft paper of a predetermined length necessary for banding, and the tip gripping unit 12 are the same as the conventional one. It was set as the same structure.
The article W to be packaged placed on the lift table 3a is carried by the lift device 3 from the lower position indicated by (B) to the upper table position indicated by (C). Here, the push member 5a of the second pusher 5 pushes the rear surface of the article W to be packaged, and the front end portion A1 of the kraft paper A is folded on the folded rear end portion A2, and then (n) The article to be wrapped W moved to the position indicated by () is sandwiched between the upper and lower conveyor belts 6a and 6b and carried out.

The position shown in (d) corresponds to the position where the article W is carried between the upper and lower conveyor belts 6a, 6b, and the position (e) is the lower carry-out device 6 This is the final position (device outlet) of the article to be packaged carried out by the conveyor 6.
(About the press 4 having the press plate 4a)
In FIG. 2, 4b represents a compression cylinder mounted on the press 4, 4c represents a kraft paper prevention cylinder, and 4d represents a guide rod for guiding the press plate 4a in the vertical direction. Reference numeral 4e denotes an LM block used in combination with the guide rail, and is fixed to the reinforcing member 4f.

The LM block 4e and the guide rail are guide members called LM guides, and are used to guide the press plate 4a in the vertical direction.
The press 4 has a press plate 4a. Two flat plates (hereinafter also referred to as left and right flat plates 4a) arranged with an opening at the center in the width direction have their rear portions connected by a reinforcing member 4f, and a compression cylinder at the center in the width direction of the reinforcing member 4f. 4b is installed (see Fig. 2). The reinforcing member 4f for connecting the left and right flat plates 4a at the rear part preferably has a box structure in which a U-shaped steel member or the like is processed.

Here, the opening is provided in the central portion in the width direction of the press plate 4 in the state where the predetermined compression force F is applied to the upper surface of the article W to be packaged by the press plate 4a and the push member of the second pusher 5. This is because the rear surface A1 of the kraft paper A is folded on the rear end A2 that is folded by pushing the rear surface of the article W to be wrapped in 5a.
It is preferable that the press 4 further includes guide members that are slidably guided in the vertical direction at two positions in the front portion of the left and right flat plates 4a and two positions in the width direction of the rear portion of the reinforcing member 4a. This is because a predetermined compressive force can be uniformly applied from above to the upper surface of the article to be packaged W by the press plate 4a in the lifting step of the lift table 3a.

As the guide member for the press plate, two sets of cylindrical guide members comprising a guide rod 4d and an outer cylinder member for guiding the guide rod 4d are prepared. One guide rod 4d is placed on the front side of the left and right flat plates 4a and the other outer cylinder is provided. The member is fixed to the ceiling frame 10 (see FIG. 2).
The LM guide is a combination of the LM block 4e and a guide rail that guides it. The LM block 4e is fixed to both sides of the reinforcing member 4f in the width direction, and the guide rail is placed between the ceiling frame 10 and the upper frame. Fix it across.

  It is preferable that the press 4 further has a kraft paper displacement prevention cylinder 4c mounted at the center of the left and right flat plates 4a. This kraft paper misalignment prevention cylinder 4c is preferably an air cylinder, and its operation is defeated by the force acting from the upper surface of the article W to be packaged which is lifted by the lift device after holding the kraft paper at the position above the apron. It is preferable that a predetermined compression force F is applied from the press plate 4a of the press 4 to the upper surface of the article W to be wrapped by the shrinkage of the kraft paper displacement prevention cylinder 4c while the lift table 3a is raised. is there.

The compression cylinder 4b of the press 4 is preferably an air cylinder. In order to apply a predetermined compressive force F to the upper surface of the article W to be packed with the press plate 4a, the upper surface of the article W to be packaged raised by the lift device. The compression cylinder 4b may be contracted by losing the force acting from above.
(About the second pusher 5 having the push member 5a)
FIG. 4-1 is a perspective view showing the relationship between the press plate 4 a of the press 4 and the push member of the second pusher 5. FIG. 4-2 is a cross-sectional view of the main part showing the hanging structure of the upper horizontal member 14 and its X1-X1 cross section. FIG. 5-1 is a cross-sectional view of the main part showing the mounting state of the horizontal member 14 above the second pusher, and FIG. 5-2 is a cross-sectional view of the main part showing the mounting state of the horizontal member 15 below the second pusher. is there.

Here, the push member 5a of the second pusher 5 shown in FIG. 2 has a structure capable of cooperating with the press plate 4a of the press 4 and also has a structure for uniformly pushing the rear surface of the packaged object. It is preferable to configure.
(1) The maximum width of the lower transverse member 15 that pushes the lower end of the rear surface of the article to be packaged in the width direction, and an inverted T-shaped article that is fixed to the widthwise central part of the lower transverse member 15 The front and rear longitudinal members 13 and 16 have a length longer than the dimensions, and the lateral member is a three-member structure that pushes the upper end of the rear surface in the width direction according to the height of the package.
The front and rear longitudinal members 13 and 16 are disposed in the opening of the press plate of the press so as to be movable in the front-rear direction, and are connected by integrated members 19a and 19b with a gap g of a predetermined interval (see FIG. 4). -1) The rear cylinder of the package is fixed by the front vertical member 13 and the upper horizontal member fixed to form the inverted T-shape with the lower horizontal member 15 with the push cylinder fixed to the rear vertical member 16. Is configured to press uniformly.
(2) The upper lateral member 14 is suspended from the press plate 4a of the press 4 via a roller 18, and has a structure that moves up and down in conjunction with the elevation of the press plate 4a (FIGS. 4-1, 4- 2).
(3) The upper lateral member 14 includes two equally divided members, a width direction passing member 17 (preferably a resin sliding material), and a gap adjusting member 14a. The gap adjusting member 14a has a structure in which two members are connected to each other, and the width direction transfer member 17 is mounted in a gap g formed between the front and rear longitudinal members (FIGS. 4-2 and 5). -1).

With such a configuration, the press plate 4a of the press 4 and the push member 5a of the second pusher 5 can cooperate (see FIGS. 1-1 to 1-5).
(Regarding the delivery device 6: see FIGS. 2 and 3)
As shown in FIGS. 2 and 3, the delivery device 6 that can carry out the package W while being compressed is provided with upper and lower conveyor belts 6 a and 6 b. The lower carry-out conveyor 6 is preferable.

  The conveyor belt 6b below the outlet device 6 is divided into two in the width direction as in the prior art, and a space is provided at the center. A tape supply apron 9a is arranged in the space in the center in the width direction so that the adhesive tape is applied across the boundary formed by folding the bottom surface of the packaged item while the packaged item is being carried out to the outlet. It has become. On the other hand, the upper conveyor belt 6a has no space at the center, and the belt is integrated in the width direction. The lower conveyor belt 6b is provided so as to be able to carry the article to be packed to the outlet, while the upper conveyor belt 6a is provided halfway along the carry-out path for carrying the article to be packed to the outlet.

In order to keep the article W to be packed in a compressed state, the upper carry-out means having the lower conveyor belt 6b was configured as follows.
That is, the upper carry-out conveyor used in combination with the lower carry-out conveyor 6 has an upper conveyor belt 6a, a drive motor that rotates the upper conveyor belt 6a, a drive conveyor roller that is driven and rotated by the drive motor, A conveyor base equipped with a guide conveyor roller, an electric motor for rotating a screw screw, and the like has a structure that moves up and down by rotating the screw screw. With this structure, the distance between the upper and lower conveyor belts 6a and 6b can be set to the height of the object W to be packed in a state compressed by a press, and the upper and lower conveyor belts 6a and 6b can be wrapped. It is possible to carry the article to be packaged to the middle of the apparatus outlet while holding the article W in a compressed state across the article W.

Note that the upper carry-out conveyor may be a roller type in which a plurality of rollers are arranged instead of the belt type, and may be a carry-out means for carrying out the package W with an arm inserted from the side.
According to such a delivery device 6, an adhesive tape is applied across the boundary formed by folding the lower surface of the package W in the middle of the path for carrying the package W to the device outlet, and a strip-shaped craft. Banding and wrapping can be completed in a state where paper is tightly banded on an item to be packaged.
(Tape pasting mechanism 9: see FIGS. 2 and 3)
A tape supply apron 9a that can be raised from a standby position below the upper table position to a tape application position above the upper table position is provided in the middle of the path for carrying the article W to the apparatus outlet. It is preferable that the tape sticking mechanism 9 is installed. The tape attaching mechanism 9 is attached with an adhesive tape supply unit 8 such as a tape reel for discharging the adhesive tape wound in a roll shape, a tape cutter for cutting the adhesive tape into a predetermined length, and the like.

According to such a tape affixing mechanism 9, an adhesive tape with an adhesive surface facing upward is supplied onto the tape supply apron 9a at the lower standby position, and the tape supply apron is passed when the article to be wrapped W passes. 9a is lifted to the tape application position with the tape application cylinder, and the band-like kraft paper is tightly banded on the item to be wrapped. Tape can be attached.
(For Kraft paper folding mechanism 30: see Fig. 11)
In order to fold the rear end of the kraft paper without breaking the kraft paper A, it is preferable to use a kraft paper folding mechanism 30 as shown in FIG.

The craft paper folding mechanism 30 includes a flat plate 11 (also referred to as a flat plate 11 with a folding roller) on which a folding roller 11a is rotatably attached, and a push that horizontally moves the flat plate 11 with the folding roller 11 in the forward direction. And a roller guide elevating cylinder 36.
Then, the flat plate 11 with the folding roller is raised from the standby position to the craft paper folding position (position slightly higher (a few millimeters higher than the upper surface of the lift table 3a)), and then the rear part of the lift table 3a is inclined. The flat plate 11 with the folding roller is horizontally moved in the forward direction in the space to be formed. The height position of the flat plate 11 shown in FIG. 11 is a standby position (a position lower than the upper surface of the lift table 3a).

  Here, the pushing cylinder 31 and the roller guide raising / lowering cylinder 36 shown in FIG. 11 are fixed to the upper stage frame. Further, since the flat plate 11 with the folding roller is fixed to the support member that supports the cam roller 33, the flat plate 11 with the folding roller can be moved up and down with respect to the pushing cylinder 31 fixed to the upper frame. In order to hold, a pair of slide members 32 was used.

  The roller guide raising / lowering cylinder 36 is a cylinder that operates the cam roller 33 on the roller guide 34 to adjust the upper surface position of the roller guide 34 to the upper surface position of the roller guide 35. Therefore, if the roller guide elevating cylinder 36 matches the height of the upper surface of the roller guides 34 and 35 and then the pushing cylinder 31 is operated, the cam roller 33 rolls on the roller guides 34 and 35 having no step, The flat plate 11 with the folding roller can be horizontally moved in the forward direction.

  According to such a kraft paper folding mechanism 30, the lift table is lifted after the flat plate 11 with the folding roller is raised from the standby position (see FIG. 1-1) to the kraft paper folding position (see FIG. 1-2). 3a In the space formed by tilting the rear part, the flat plate 11 with the folding roller is moved horizontally in the forward direction (see Fig. 1-3), and the flat plate 11 with the folding roller without breaking the kraft paper A The rear end A2 of the kraft paper A can be folded into the lower surface of the article W to be packaged.

It is a side view which shows the process of this invention method. It is a side view which shows the process of this invention method. It is a side view which shows the process of this invention method. It is a side view which shows the process of this invention method. It is a side view which shows the process of this invention method. It is a side view which shows the whole structure of the banding packaging apparatus which implement | achieves this invention method. It is a top view which shows arrangement | positioning of the entrance side and exit side apparatus used for this invention. It is a perspective view which shows the structure of the push member of the 2nd pusher of FIG. 1, and the relationship between the press plate of a press. It is principal part sectional drawing which shows the suspension structure of the upper horizontal member, and its X1-X1 cross section. It is principal part sectional drawing which shows the attachment state of the horizontal member on a 2nd pusher. It is principal part sectional drawing which shows the attachment state of the horizontal member under a 2nd pusher. It is a perspective view which shows an example of a to-be-packaged object. It is a perspective view which shows an example of the to-be packaged object packaged by 6 sides. It is the perspective view which looked at the to-be packaged object of FIG. 6-2 from the bottom. It is a perspective view which shows an example of the to-be-wrapped to-be-packaged object. It is the perspective view which looked at the to-be packaged object of FIG. 7-1 from the bottom. It is a perspective view which shows the other example of the to-be-wrapped to-be-packaged object. It is a perspective view which shows an example of a finished book. It is a side view which shows an example of the to-be-packaged object which piled up the finished book. It is a side view which shows the principal part of the conventional packaging apparatus. It is process drawing explaining the problem at the time of using the conventional packaging apparatus. It is a perspective view which shows the structure of a suitable folding mechanism used for this invention.

Explanation of symbols

A Kraft paper
A1 Tip
A2 Rear end B Adhesive tape P Finished book (article)
P ₁ Binding margin side P ₂ Anti-binding margin side W Packaged item F Compressive force 1 Carry-in conveyor (entry side device)
1a Conveyor belt 2 First pusher
2a Push member 3 Lifting device
3a lift table
3b Table cylinder 4 Press
4a Press plate
4b Cylinder for compression (air cylinder)
4c Crash paper prevention cylinder (air cylinder)
4d guide rod
4e LM block (combined with LM guide guide rail)
4f Reinforcing member 5 Second pusher
5a Push member
5b Push cylinder (air cylinder)
6 Unloading conveyor (delivery side device)
6a, 6b Conveyor belt 7 Kraft paper supply section
7a Payoff reel
7b slitter
7c dancer roll
7d pinch roll
7e cutter
7f Apron 8 Adhesive tape supply 9 Tape pasting mechanism
9a Tape supply apron
10 frames
11 Flat plate with folding roller
11a Folding roller
12 Tip grip
13 Front longitudinal member
14 Transverse member on
14a Spacing adjustment member
15 Lower transverse member
16 Rear longitudinal member
17 Width direction member
18 Laura
18a Roller mounting member
19a, 19b Integrated member
20 Upper presser
21 Wedge material
30 Kraft paper folding mechanism
31 Push-in cylinder
32 Slide member
33 Cam roller
34, 35 Roller guide
36 Roller guide lifting cylinder

Claims (11)

The article to be packaged, which is formed by stacking articles having gaps, is carried into the apparatus by the entry side device arranged at the lower stage, and the article to be packaged carried into the apparatus and placed on the lift table is moved from the lower table position to the upper stage. The four surfaces of the packaged object excluding both side surfaces in the course of the lifted table that is lifted to the table position by the lift device and the unloaded device placed on the upper stage to carry the packaged product out. A wrapping method for wrapping kraft paper on
In the lifting step of the lift table, the upper surface of the packaging object is covered with kraft paper before being cut on the upper surface and the front and rear surfaces of the packaging object while applying a predetermined compressive force from above. Folding the rear end of the kraft paper formed by cutting to a predetermined length on the lower surface of the article to be packed with the compressive force applied to the upper surface, and the front end of the kraft paper at the folded rear end After that, the adhesive tape is applied across the boundary generated by the folding of the lower surface of the packaging object while the packaging object is held in a compressed state, and the wrapping packaging is finished. A wrapping packaging method characterized by that. The article to be packaged, which is formed by stacking articles having gaps, is carried into the apparatus by the entry side device arranged at the lower stage, and the article to be packaged carried into the apparatus and placed on the lift table is moved from the lower table position to the upper stage. The four surfaces of the packaged object excluding both side surfaces in the course of the lifted table that is lifted to the table position by the lift device and the unloaded device placed on the upper stage to carry the packaged product out. A wrapping and wrapping device for wrapping kraft paper on
A kraft paper supply unit capable of supplying a predetermined length of kraft paper necessary for obi hanging, and a tip gripping part capable of gripping the tip of the kraft paper with a predetermined force;
A mechanism for folding the rear end portion of the kraft paper formed by cutting to a predetermined length, and a folding means for folding the front end portion of the kraft paper on the folded rear end portion, the article to be packaged in the forward direction A second pusher having a push member for horizontal movement,
A press having a press plate that applies a predetermined compressive force to the upper surface of the package from above, a second pusher having a push member structured to cooperate with the press plate of the press, and the package to be further compressed A tape attaching mechanism that ends the wrapping packaging by attaching an adhesive tape across the boundary generated by folding of the packaged items while being held in a folded state, is arranged in the upper stage. Packaging equipment. The press includes a press plate composed of left and right flat plates arranged with an opening provided in a central portion in the width direction, a reinforcing member that connects and reinforces the rear portions of the left and right flat plates, and a central portion in the width direction of the reinforcing member. The band wrapping apparatus according to claim 2, further comprising a compression cylinder mounted thereon. 4. The press according to claim 3, further comprising guide members that are slidably guided in the vertical direction at two locations on the front part of the left and right flat plates and at two locations in the width direction on the rear part of the reinforcing member. The wrapping packaging device as described. The banding and wrapping apparatus according to claim 3 or 4, wherein the press further includes a kraft paper displacement prevention cylinder at the center of the left and right flat plates. The pusher of the second pusher has an inverted T-shape that is fixed to a lower horizontal member that pushes the lower end of the rear surface of the article to be packaged in the width direction and a center portion in the width direction of the lower horizontal member. Three-member configuration of front and rear longitudinal members having a length longer than the maximum height dimension of the article to be packaged and a horizontal member that pushes the upper end of the rear surface in the width direction according to the height of the article to be packaged And
The longitudinal members of the front and rear are narrower than the width of the opening provided in the center in the width direction of the press plate of the press, and are disposed in the opening of the press plate of the press so as to be movable in the front and rear direction. The vertical members are connected to form a gap of a predetermined interval, a push cylinder is fixed to the rear vertical member, and the front vertical member extends the widthwise central portion of the rear surface of the packaged object over the height direction. The banding packaging device according to any one of claims 2 to 5, wherein the device is configured to be pushed. The wrapping packaging according to claim 6, wherein the upper lateral member is suspended from a press plate of the press via a roller and moves up and down in conjunction with the elevation of the press plate. apparatus. The upper transverse member has two equally-divided members, a width direction passing member and a spacing adjusting member, and has a structure in which the two members are connected by the width direction passing member and the spacing adjusting member. The band wrapping apparatus according to claim 6, wherein the width direction passing member is mounted in a gap formed between front and rear longitudinal members. The delivery device has upper and lower conveyor belts, and when the push cylinder of the second pusher is extended, the article to be packaged is compressed with the article to be packaged sandwiched between the upper and lower conveyor belts. The upper and lower carrying conveyors have a structure that can be carried out while being held, a lower conveyor belt is provided so as to be able to carry the article to be packaged to the outlet, and an upper conveyor belt is to deliver the article to be packaged to the outlet It is provided even in the middle of the carrying-out path | route to carry out, The banding packaging apparatus of any one of Claims 2-8 characterized by the above-mentioned. 10. The tape affixing mechanism includes a tape supply apron that can be raised from a standby position below the upper table position to a tape application position above the upper table position. The band wrapping apparatus according to any one of the above. The mechanism for folding the rear end portion of the kraft paper comprises a flat plate with a folding roller, a pushing cylinder for horizontally moving the flat plate with the folding roller in the forward direction, and a roller guide lifting cylinder, The flat plate with the folding roller is configured to be moved horizontally from the standby position to the craft paper folding position and then moved forward in a space formed by tilting the rear portion of the lift table. The band hanging packaging apparatus according to any one of claims 2 to 10.

Images