TW202243959A - Packing device for box body - Google Patents

Abstract

A packing device for a box body includes a tape sticking unit. When the box body is transported from the rear to the front of a conveying route, the opposite ends of a pair of folded sheets on the box body is stuck by the tape along the conveying direction. The tape sticking unit includes a pressing part and a pull-up means. The pressing part can move between a descending position and an ascending position above the descending position. When the pressing part is in the descending position, it presses the tape to the front of the box body. When the pressing part is in the ascending position, it presses the tape to the opposite ends of the box body. The pull-up means pulls up the lower part of the tape near the rear of the pressing part when the rear pressing roller descends from the ascending position to the descending position.

Description

Box sealing device

The present invention relates to a box sealing device, comprising a conveying unit and a tape sticking unit, the conveying unit transports the box body from the rear of the conveying path to the front; the tape sticking unit sticks tape on a box body along the conveying direction; wherein, the box There is an opening on the top of the body, and a pair of flaps that can close the opening protrude from the two lateral outer sides of the opening to the central side. There are a pair of opposite ends on the flaps, and the adhesive tape is pasted on the side along the conveying direction. on the opposite end.

In order to improve the sealing performance of the known box sealing device, the structure developed allows the adhesive tape to be pasted not only to the full length of the front and rear direction of the opposite end of one of the folded pieces on the top of the box, but also past the opposite end. Both ends to the top of the front and rear surfaces of the box (for example, refer to the following patent document 1).

The sealing device of Patent Document 1 is arranged at a distance from each other in the conveying direction, and it includes: an upstream side pressure roller and a downstream side pressure roller, which pass through the box body and the tape to form a pressure part that can be pressed; and tape cutting A knife is arranged between the pressing rollers on the upstream side and the downstream side to cut the adhesive tape.

Moreover, when using the sealing device of Patent Document 1 to stick the tape on the box body, the lower part of the tape is placed on the upstream side (rear) of the upstream pressure roller in a hanging state. In this state, when the box advances from the upstream side (rear) to the upstream side pressing part (front) on the conveying path, the upstream side pressing part will press the front upper part of the box through the lower part of the tape.

In this way, the adhesive tape can be pasted on the front upper part of the box. Paste the lower part of the tape on the upper front of the box, stick the tape to the beginning end of the box, and then continue the pasting action through the upstream side pressure roller and the downstream side pressure roller, so that the tape is pasted from the front end to the rear end. The opposite ends of one pair of folded pieces are arranged on the box body.

Then, in order to stick the adhesive tape on the rear upper part of the box body, in the state where the adhesive tape extends to the rear from the rear end of the box body, the excess part is cut by an adhesive tape cutter. On the other hand, the tape remaining on the device side after cutting is placed in a state in which the lower end hangs down, and the lower part is arranged near the rear side of the upstream pressure roller, and the box to be transported next can be prepared in the same manner as above. Body for tape sticking operations.

In addition, if books and other distributions (thin distributions) are delivered after being sealed with packaging materials, such as items with a thickness of about 8mm to 40mm, envelopes or plastic bags are often used as packaging materials at present.

Generally speaking, though envelopes or plastic bags are more flexible than corrugated boxes, they lack strength. As a result, these sealed packages are difficult to stack and collapse easily, and are prone to damage, wrinkles, etc. during the delivery process. Unfavorable factors, there are doubts about the poor protection of the delivered items.

On the other hand, there are currently some people who put thin delivery items in boxes such as corrugated boxes that are stronger than envelopes and plastic bags, but compared with the thickness of the delivery items (contents), the thickness of the box body is excessive. If it is used to seal the thin distribution items for distribution, the actual stowage capacity of the shelves will be reduced when transported by trucks, resulting in disadvantages such as low transportation efficiency.

Based on the above-mentioned background factors, there is a need to reduce the thickness of boxes such as corrugated boxes, which are stronger than envelopes and plastic bags, and use the thin boxes to seal and distribute the delivered items.

However, if a thin cabinet is used, the vertical direction of the front will be shorter in order to match the thinning of the cabinet. In this way, when the sealing device is used to start sticking the tape to the thin box as described above, that is, when the tape is pasted on the front of the box through the pressing part, the lower end of the tape pasted on the front of the box may be longer than the lower end of the box. and remain below. At this time, the excess part under the tape may accidentally stick to the surrounding parts of the conveying path such as the conveying roller, or make the box body after the tape is pasted unsightly, making the tape easily peeled off from the box body.

In other words, the above-mentioned problem is an important reason why it is impossible to enclose and deliver goods in a thin box and distribute them.

[Patent Document 1] Japanese Patent Laid-Open No. 2011-68408

The purpose of the present invention is to provide a box sealing device suitable for even thin boxes, which not only allows the adhesive tape to be properly pasted to the opposite end of the flap formed on the side with the opening, but also can be pasted to the opposite end of the flap formed on the side with the opening The side surface adjacent to the side with the opening.

The box sealing device of the present invention includes a box conveying unit and a tape sticking unit, the box conveying unit transports the box from the rear of the conveying path to the front; the tape sticking unit sticks the tape on the box along the conveying direction; Wherein, there is an opening on the top of the box, and a pair of flaps that can close the opening protrude from the lateral two outer sides of the opening to the central side. There are a pair of opposite ends on the flaps, and the adhesive tape is along Stick to the opposite end in the direction of conveyance. The adhesive tape sticking unit includes a pressing part and a pulling means, the pressing part is moved between a descending position and an ascending position above the descending position, and presses the adhesive tape when it is in the descending position To the front of the box, when it is in the raised position, the adhesive tape is pressed against the opposite end of the box; the pulling means is lowered from the raised position to the lowered position at the pressing part , pull up the lower portion of the adhesive tape located near the rear side of the pressing portion. The pull-up means moves the adhesive tape in a pull-up direction according to the movement of the press-applying part from the raised position to the lowered position, so that the distance between the pull-up means and the press-applied part is elongated.

According to the above configuration, when the pressing portion returns from the raised position to the lowered position, the pull-up means itself moves in the direction of pulling up the adhesive tape, thus pulling up the lower part of the adhesive tape while remaining in a specific position than the pull-up means. In some cases, the lower part of the tape can be pulled up more aggressively.

Therefore, the arrangement can be appropriately adjusted so that the lower portion of the adhesive tape does not hang down by an excess length than the pressing portion at the lowered position.

Also therefore, even if the box is thin, the adhesive tape can not only be properly pasted on the opposite end of a pair of folded pieces formed on the side of the box opening, but can even be pasted on the front of the box.

Also, in this specification, the so-called thin box system means that the length in the height direction of the surface (front and rear) adjacent to the surface with the opening is longer than the lengths in the lateral and longitudinal directions of the surface with the opening. Short box. For example, it is suitable for a box that seals and distributes distribution items such as books (thin distribution items) such as books with a thickness of about 8mm to 40mm.

One of the preferred implementation aspects of the present invention is as follows. The adhesive tape is routed along a routing path under the adhesive tape, and the routing path under the adhesive tape extends downward from a position above the pulling means toward the pressing portion; the present invention also includes: a rocking arm and a linking arm, the Shake the arm to make the pressing part swing between the lowered position and the raised position; the connecting arm is connected to one end of the rocking arm, and passes through the wiring path under the adhesive tape and extends from the one end to the other end; the pulling means It is arranged on the connecting arm; when the pressing part is lowered from the raised position to the lowered position, the connecting arm is linked with the displacement of the rocking arm, and the pulling means is moved from the one end to the wiring path under the adhesive tape. side to the other side.

When the pressing part returns from the raised position to the lowered position, the connecting arm moves in conjunction with the swinging arm. And, since the connecting arm is arranged on the pulling means as mentioned above, when the pressing part returns to the lowering position from the raised position, the pulling means itself can move the lower part of the adhesive tape in the pulling direction.

That is, when the pressing part moves from the raised position to the lowered position, the pulling means can more positively pull up the lower part of the tape than when the lower part of the tape is pulled up at a specific position.

Furthermore, because the pulling means is arranged on the connecting arm, when the pressing part descends from the raised position to the lowered position, the pulling means can be moved in the pulling direction even without additionally preparing elements such as a driving source. Move, also can utilize the action of connecting member when this pressing part descends, make this pull-up means move toward this pull-up direction efficiently as above-mentioned.

Another preferred embodiment of the present invention is as follows. When the pressing part descends from the raised position to the lowered position, the pulling means advances approximately linearly from the one end side to the other end side relative to the wiring path under the adhesive tape.

Another preferred embodiment of the present invention is as follows. The present invention further includes a tape cutting means, which is disposed close to the side of the pressing part, and moves near the front side of the pressing part and between the lowered position and the raised position. Cut the tape when moving to the lowered position.

According to the above structure, the hanging length of the lower part of the adhesive tape can be shortened as much as possible, so that the lower part of the adhesive tape disposed near the rear side of the pressing part does not have an excess length hanging below the pressing part.

The adhesive tape cutting means can be cut physically through a blade such as a utility knife or scissors, or cut by thermal melting.

According to the present invention, even if it is a thin box, the adhesive tape can be properly pasted not only on the opposite ends of the flaps formed on the side with the opening, but also on the sides adjacent to the side with the opening. superior.

The box sealing device 1 of this embodiment (hereinafter referred to as the box sealing device 1) is to seal the opening of the upper part of the box B (corrugated box B in this embodiment), and a pair of flaps Ba are aligned. A device that seals the box B with adhesive tape T (hereinafter referred to as tape T) toward the end Baa (please refer to Figure 17). The box B sealed in the device is especially suitable for thin box B.

As shown in FIGS. 1 to 5 , the sealing device 1 of this embodiment is composed of a base 2 , a unit support body 3 and various units 10 , 40 , and 50 .

In addition, in the figure, the front-back direction of the L-system device, the left-right direction of the W-system device, and the up-down direction (height direction) of the Z-system device. Furthermore, the front (front) of the Lf series device, the rear (back side) of the Lr series device, the right side of the Wr series device, the left side of the Wl series device, and the top of the Zu system device.

As shown in Figures 1 to 3 and 5, the base platform 2 includes a box conveying platform 21 that automatically transports the boxes B along the conveying path 4; a box supply platform 22 extended to the rear relative to the box conveying platform 21 ; relative to the box delivery platform 21 extended to the front of the box delivery platform 23 .

The tops of the box conveying platform 21, the box supplying platform 22, and the box sending out platform 23 are almost flat and have no step difference. Each upper part of 23 forms a continuous linear shape in the front-rear direction. The rear side (back side) of the device on the transport path 4 corresponds to the upstream in the transport direction of the box B, and the same front side (front side) corresponds to the downstream. The box B is conveyed from the rear side of the conveyance path 4 to the front.

Also, compared with the flat horizontal surface formed on the top of the case supply table 22, the top of the case body delivery table 23 is arranged side by side along the conveying path 4 with a large number of conveying rollers 5 extending laterally and freely rolling in the axial direction ( Please refer to Figure 1, Figure 3, Figure 5).

As shown in Figures 1 to 5, the unit support body 3 includes a unit support frame 24 that is higher than the top of the box body conveying platform 21 and seems to be erected horizontally across the conveying road 4, and supports the unit support frame 24 from both lateral sides. Pillar 125.

The unit support body 3 forms a rectangular frame shape in plan view and supports the tape sticking unit 10 described later and the upper box conveying unit 40U. In addition, the adhesive tape sticking unit 10 described later is positioned almost directly above the lateral middle position of the conveyance path 4 through the unit support body 3 . Furthermore, a pair of upper box conveying units 40U are provided on both sides of the tape sticking unit 10 .

The pillars 125 extend up and down, and their middle parts are respectively assembled on the lateral sides corresponding to the box conveying platform 21 . The inside of the pillar 125 is equipped with a ball screw (Ball Screw) extending up and down (omitted in the figure), and the unit support frame 24 can move up and down. The sealing device 1 is provided with a height adjustment handle (omitted in the figure) for adjusting the height of the unit support body 3 by rotating the screw shaft.

As shown in FIGS. 1 to 5 , the box sealing device 1 of this embodiment includes a tape sticking unit 10 , a box conveying unit 40 and a conveying path width adjusting unit 50 .

The case conveying unit 40 includes an upper case conveying unit 40U, a lower case conveying unit 40D (please refer to FIG. 5 ), and a case guide rail 48 .

As shown in FIG. 5 , the unit support frame 24 supports the upper case transfer unit 40U, and the lower case transfer unit 40D is disposed on the upper portion of the case transfer table 21 . As shown in FIG. 6 , each of the upper box transport unit 40U and the lower box transport unit 40D includes a pair of left and right belt conveyors 43 along the transport path 4 .

As shown in FIG. 5 , the conveyor belt conveyor 43 includes driven rollers 44 that extend laterally and roll axially, drive rollers 45 that extend laterally and rotate axially through a motor 46 , and include driven rollers 44 that are spaced apart in the front and rear directions. And the driving roller 45 and constituted by the conveyor belt 47 erected in an endless (non-contact shape).

As shown in Figures 5 and 6, on both lateral sides of the conveying path 4, the above-mentioned upper case conveying unit 40U having the conveying belt conveyor 43 and the above-mentioned upper case conveying unit 40U having the conveying belt conveyor 43 are oppositely arranged on the upper and lower sides across the conveying path 4. The lower side box conveying unit 40D.

Next, as shown in FIG. 5 , the box B is supported on the upper surface 47 du of the conveyor belt 47 of the conveyor belt conveyor 43 in the lower box body conveying unit 40D. On the other hand, the upper case conveying unit 40U is adjusted to have a height such that the lower surface 47ud of the conveyor belt 47 of the upper case conveying unit 40U of the belt conveyor 43 cannot contact the upper surface of the case B. Therefore, the upper and lower conveying belts 47 are synchronously driven on the conveying path 4, so that the case B can be automatically conveyed from the rear of the conveying path 4 to the front.

Moreover, the front side of the unit support frame 24 has the motor 46 for driving the conveyor belt 47, and the operation switch 49 which operates ON (start)/OFF (stop) by an operator.

As shown in Fig. 1, Fig. 3, and Fig. 6, there are a pair of case guide rails 48 of the case conveying unit 40 on both lateral sides of the conveying path 4. 4 Advance to the side of the box B, while leading to the lateral direction.

As shown in Fig. 1 and Fig. 3, while the pair of box guide rails 48 are linear elongated members extending along the front and rear directions of the conveying path 4, they form a laterally longer Flat plate.

That is to say, the pair of box guide rails 48 form a smaller thickness than the box B of the minimum thickness limit in the thin box B (that is, the box can be sealed with adhesive tape T) that the box sealing device 1 of the present embodiment can correspond to. thickness. And, a pair of case guide rails 48 is horizontally arranged along the lower end of the conveying path 4, that is, it is horizontally arranged at a position slightly above the upper surface 47du of the conveying belt 47 constituting the conveying path 4 below (please refer to FIGS. 4 and 6 ). , Figure 13(a)).

As shown in Figures 1 to 6, the conveying road width adjustment unit 50 is composed of a guide rail assembly part 51, a width adjustment connecting rod 52, and a width adjustment handle 53. These three members 51, 52, and 53 have a pair of left and right respectively, corresponding to Each box guide rail 48 in the transverse direction.

As shown in the same figure, the guide rail assembly portion 51 is parallel to the case guide rail 48 and extends in the front-rear direction, and is arranged in parallel on the lateral outer side of the case guide rail 48 . As shown in FIG. 4 , the support box guide rail 48 is assembled from the lateral outer side.

As shown in FIGS. 1 to 4 and FIG. 6 , the guide rail assembly part 51 is supported on the box conveying table 21 through the width adjusting connecting rod 52 on both lateral sides of the conveying path 4 .

As shown in Figure 3, from a top view, one end of the width adjusting link 52 is pivotally supported on the lateral end above the box conveying platform 21, and the other end is pivotally supported on the guide rail assembly part 51, and the width is adjusted One end of the connecting rod 52 is centered and the other end faces backward (refer to the width adjustment connecting rod 52 shown in dotted line in FIG. connecting rod 52), a structure that can be rocked between the two. The width adjusting link 52 as described above is constituted by a pair of front and rear parallel link mechanisms. Therefore, the guide rail assembly part 51 (cassette guide rail 48 ) is parallel to the conveyance path 4 and kept horizontal, moves to the laterally outer side and pushes the box body supply table 22 to the rear side, and moves to the laterally inner side and retracts to the rear side. Box conveying platform 21 side.

And, by operating the width adjustment handle 53 at the rear portion of the guide rail assembly portion 51, it is prescribed to limit the pivot of the other end side of the width adjustment link 52 relative to the guide rail assembly portion 51, so that the conveying path 4 can be arbitrarily configured. Width comes to fix the position of casing guide track 48.

That is, the pair of box guide rails 48 can individually and manually adjust the width of the conveying path 4 on the left and right sides through the conveying path width adjusting unit 50 .

As shown in FIGS. 7 to 11 , the tape sticking unit 10 has a rear swing arm 12 , a front swing arm 13 , a link arm 14 and a tape cutting arm 15 .

The lower end and the front end of the rear side rocking arm 12 have rear side pressure rollers 16 described later. At the same time, the rear side pressure rollers 16 are at the lowered position Pd (please refer to FIG. 10 ) and the raised position Pu ( Please refer to FIG. 11 ), it can swing and is pivotally supported on the rear part of the right side wall 11r through a shaft 17 extending laterally.

The lower end and the rear end of the front side rocking arm 13 have the front side pressure roller 18 described later. At the same time, the front side pressure roller 18 is at the lowered position Pd (please refer to FIG. Referring to Fig. 11 ), it is swingable and pivotally supported on the front part of the right side wall 11r through a laterally extending shaft 19 .

The rear swing arm 12 and the front swing arm 13 are connected to each other by a connecting arm 14 extending in the front-rear direction across the two.

Specifically, while the rear swinging arm 12 is pivotally supported by a shaft 14r (please refer to FIGS. (Please refer to Figure 8-11) Pivot support.

Therefore, the connecting arm 14 maintains the rear side swing arm 12 and the front side swing arm 13 at approximately the same height as the rear side pressure roller 16 and the front side pressure roller 18, and moves them up and down in conjunction with each other. That is, the rear side pressure roller 16 and the front side pressure roller 18 are rocked relative to each other at the same time point to become the lowered position Pd or the raised position Pu.

In the states shown in Figures 7 to 10 and Figure 12(a), the "falling position Pd" is that the rear side pressure roller 16, the front side pressure roller 18, and the tape cutting knife 25 are located on the box B that is transported in. Not low position.

Specifically, the descending position Pd of the rear pressure roller 16 is the lower part Td (see the same figure) of the tape T that hangs down the rear side Ar (see FIG. 13(a)) of the rear pressure roller 16, The standby position of the front Bf of the box body B can be pressed through the rear side pressing roller 16, as shown in FIG. 13(a).

Furthermore, the lowering position Pd of the front pressure roller 18 is the adhesive tape T attached to the opposite end Baa of Bu on the upper surface of the box body B, through which the front pressure roller 18 will extend from the rear end of the opposite end Baa. The extended piece Tr to the rear (please refer to Figure 15) presses against the position of Br at the rear of the box B, as shown in Figure 15.

On the other hand, in the state shown in Figure 11 and Figure 12(b), the "rising position Pu" is that the rear side pressure roller 16, the front side pressure roller 18, and the tape cutting knife 25 are located in the box that is transported in. A not high position above B.

The rising positions Pu of the rear side pressure roller 16 and the front side pressure roller 18 are all located at the position where the opposite ends Baa of a pair of flaps Ba on Bu on the upper surface of the box body B press against the tape T, as shown in Figure 14(a), Figure 14(a). 14 (b) shows the position.

As shown in Figures 7 to 11, while the tape cutting arm 15 has a tape cutting knife 25 located at the lower front, the tape cutting knife 25 is at the descending position Pd (please refer to Figure 10) and is lower than the descending position Pd. Between the front or upper ascending position Pu (please refer to FIG. 11 ), it is pivotally supported on the left side wall 11 l (please refer to FIG. 8 and FIG. 9 ) through a laterally extending shaft 26 .

The tape cutter 25 is wider than the tape T, and the cutter blade at the lower end is formed in a plate shape along the width direction.

The rising position Pu of the tape cutting knife 25 refers to the blade formed at the lower end of the tape cutting knife 25, which is aligned with the tape T attached to the upper surface Bu of the box body B from the upper side, and when it descends to the descending position Pd The position where the tape T can be cut is the position shown in Figure 11, Figure 14(a) and Figure 14(b).

In addition, as shown in Figures 7 to 10 and Figure 12(a), the tape cutting arm 15 has a cutting knife protection member 27, a cutting knife push-up member 28, and a cutting knife assembly position adjustment bracket 29 (please refer to Figure 7. Figure 12 (a)) and the assembly position adjustment bracket 30 of the push-up member.

Cutter protection member 27 is the member that covers this tape cutter 25 from the front of tape cutter 25 so that the cutter blade will not hurt the hands.

As shown in Fig. 10 and Fig. 11, the upper end of the cutter protection member 27 is pivotally supported on the side of the tape cutting arm 15, and can be positioned near the lower part relative to the tape cutter 25 (covering the tape cutter). 25 cover position Pa (please refer to FIG. 10)), or a position with a distance from the front (relative to the tape cutter 25 retreating back to the retreat position Pb (please refer to FIG. 11). Again, the cutter protection member 27 The shaft support 27a at the upper end has a torsion spring 31 (please refer to FIG. 8 ), so it always exerts force on the sleeve position Pa.

And, the cutting knife protection member 27 is as mentioned above, and when the tape cutting knife 25 is at the descending position Pd, it is located at the cover position Pa, so as to protect the hands from being hurt by the blade. On the other hand, when the cutter protection member 27 is at the ascending position Pu, the cutter protection member 27 abuts against the upper surface of the case B to form the retreat position Pb (please refer to Fig. 14(a) and Fig. 14(b)) , the tape T can be cut by the tape cutting knife 25 .

The cutting knife push-up member 28 is a cam plate that pushes the tape cutting knife 25 up to the raised position Pu, and is deviated from the tape cutting knife 25 (the lateral side (the left side in this embodiment)) and is set on the side. (Please refer to Figure 7 ~ Figure 9).

As shown in Figure 12 (b), when the cutting knife push-up member 28 is in the state where the tape cutting knife 25 and the rear pressure roller 16 are respectively at the raised position Pu, its front end 28f is located in front of the blade, while the rear part 28r is located relatively The lower end of the rear pressure roller 16 is further behind and extends towards the front and rear directions. The rear portion 28r of the cutting knife push-up member 28 is inclined toward the rear upper position and extends in the front-rear direction (please refer to FIG. 12(a) and FIG. 12(b)).

The cutting knife push-up member 28 makes the front and upper corners of the box B conveyed from the rear to the front directly contact the rear part 28r without passing through the tape T in the state where the tape cutting knife 25 is located at the lowering position Pd. , so that the tape cutting arm 15 (tape cutting knife 25) is pushed up to the rising position Pu (please refer to FIG. 13(a), FIG. 13(b)).

The cutting knife assembly position adjustment bracket 29 (please refer to Figure 12(a)) is to use bolts and other components to assemble the tape cutting knife 25 on the side of the tape cutting arm 15, and at the same time adjust the tape cutting knife 25 in the front and back directions. Cut out the assembly location on the arm 15. That is to say, the cutter assembly position adjustment bracket 29 can adjust the assembly position of the tape cutter 25, so that it is in a state where the front is close to the rear pressure roller 16, or the front and the rear pressure roller 16 are spaced apart. .

The push-up member assembly position adjustment bracket 30 uses bolts and other components to assemble the cutting knife push-up member 28 on the side of the tape cutting arm 15, and at the same time can adjust the assembly position of the tape cutting arm 15 on the cutting knife push-up member 28 in the front and rear direction .

As long as the assembly positions of the above-mentioned tape cutting knife 25 and the cutting knife pushing member 28 in the front and back directions are properly adjusted respectively, the length of the tape T attached to the front Bf and the back Br of the box B can be adjusted. From the viewpoint of meeting the thin case B of the present embodiment, the tape cutter 25 is preferably arranged as close to the side of the rear pressing roller 16 as possible.

Furthermore, as shown in Figures 7 to 12(a) and Figure 12(b), the adhesive tape sticking unit 10 includes: when the rear side pressure roller 16 and the front side pressure roller 18 are on the lowered position Pd side, the force is applied. The force spring 32 and the urging spring 33 are urging when the tape cutting arm 15 is on the descending position Pd side. 7, FIG. 11, FIG. 12(a), and FIG. 12(b) are omitted to show the biasing spring 33.

Next, as shown in FIGS. 7 to 10 , the tape sticking unit 10 includes: pressure rollers 18, 16 on the front and rear sides of the above-mentioned front and rear sides that press the tape T against the box B that is conveyed from the rear to the front of the conveyance path 4; The supply roller 35 (please refer to FIG. 7 ); the tape guide structure 60 that guides the tape T supplied by the tape supply roller 35 to the rear pressing roller 16 .

As shown in FIG. 7, the tape supply roller 35 is located on the upper part of the support plate 36 extending from the right side wall 11r to the top, and the central part of the tape raw material TA can rotate around the axis extending laterally. The tape raw material TA is formed by winding the tape T.

The tape raw material TA mounted on the tape supply roller 35 pulls out the tape T from the outermost layer, and the tape T is routed to the tape guide structure 60 side below. And, the tape supply roller 35 is passively rotated according to the tension applied to the tape T from the tape guide structure 60 side, so that the tape T of the tape raw material TA is supplied to the tape guide structure 60 side.

The tape guide structure 60 includes: a first guide roller 61, a second guide roller 62, an auxiliary guide roller 63, a guide roller 62, and a first guide roller 61 capable of guiding the tape T supplied by the tape supply roller 35 to the rear pressure roller 16. Component 64 (please refer to FIG. 7 and FIG. 9 ) and pull-up roller 65 .

The first guide roller 61 , the second guide roller 62 , the auxiliary guide roller 63 and the pull-up roller 65 are all pivotally supported around the laterally extending shaft and can rotate freely.

The first guide roller 61 is located at the upper and rear corners of the right side wall 11r, and guides the final portion of the adhesive tape T during the supply of the adhesive tape T from the adhesive tape supply roller 35 (please refer to FIG. 7 ) to the rear pressure roller 16. The roller on the upstream side (the tape supply roller 35 side) abuts the non-adhesive surface Tb of the tape T routed from the tape supply roller 35 from the front side (please refer to FIG. guide roller 62 side).

The second guide roller 62 is located on the right side wall 11r at a position in front of the first guide roller 61, and abuts against the bonding surface Ta of the adhesive tape T routed by the first guide roller 61 from the rear side (please refer to FIG. 13 . (a)) and guided to the downstream side (the guide member 64 side).

As shown in Fig. 6 and Fig. 12 (a), the guide member 64 is arranged on the rear side rocking arm 12, which is located near the top of the rear side pressing roller 16 at the descending position Pd, and is routed from the second guide roller 62 on the top. The tape T is inserted in the up and down direction to form a guide track shape to the rear side Ar near the rear side pressure roller 16 below (please refer to FIG. 13( a )). In addition, the guide member 64 can maintain the adhesive tape T inserted in the vertical direction, and has the function of preventing it from flowing upward. In addition, the tape lower portion Td in a hanging state at the rear side Ar of the rear side pressure roller 16 is arranged such that the bonding surface Ta faces rearward.

The auxiliary guide rollers 63 are disposed above and behind the rear swinging arm 12 relative to the guide member 64 , and guide the tape T routed from the second guide rollers 62 to the guide member 64 from behind.

The pull-up roller 65 is a roller that pulls up the tape bottom Td located near the rear side Ar of the rear pressure roller 16 when the rear pressure roller 16 descends from the raised position Pu to the lowered position Pd.

As shown in FIG. 16 , starting from the position of the second guide roller 62 (also referred to as "tape supply position"), the tape T When wiring with the shortest path, the front end of the pull-up roller 65 is located further in front of the shortest path (the imaginary straight line La connecting the second guide roller 62 and the guide member 64 in this embodiment).

As will be described later, when the rear pressure roller 16 descends from the raised position Pu to the lowered position Pd, the pulling roller 65 abuts the tape T from the rear side to pull up the tape lower portion Td.

At this time, when the rear side pressing roller 16 is reset from the raised position Pu to the lowered position Pd, that is, when the rear side rocking arm 12 rotates counterclockwise in FIG. 16 , the linking arm 14 moves forward. In this embodiment, the pull-up roller 65 is arranged on the above-mentioned connecting arm 14 (please refer to FIG. 16 ). In the structure shown in Figure 16, the pull-up roller 65 moves the tape T in the pull-up direction according to the movement of the rear side pressure roller 16 from the raised position Pu to the lowered position Pd (moving from the rear retracted position Pr to the lowered position Pd). Pulled-up position in front Pf).

In addition, as shown in FIGS. 8 to 11 , the tape sticking unit 10 includes a lower limit height adjustment unit 80 , which adjusts the height of the rear pressure roller 16 at the descending position Pd with respect to the height of the conveyance path 4 (conveyor belt 47 ). .

The lower limit height adjustment part 80 includes: a protrusion 81 protruding upward from the middle part of the upper side of the connecting arm 14; .

Here, as described above, when the rear pressing roller 16 returns from the raised position Pu to the lowered position Pd, the connecting arm 14 moves forward in conjunction with the rear swinging arm 12 . Furthermore, the installation position of the stopper 82 is the position where it abuts against the protrusion 81 provided on the connecting arm 14 when the rear pressing roller 16 is at the descending position Pd (please refer to FIGS. 9 and 10 ). Therefore, the lower limit height adjusting portion 80 is used to limit the rear pressing roller 16 and the front pressing roller 18 so that the rear pressing roller 16 and the front pressing roller 18 do not continue to descend.

Furthermore, as shown in FIGS. 9 to 11 , the assembly position of the stopper 82 on the right side wall 11 r can be adjusted in the front and rear directions. Therefore, the lower limit height adjustment unit 80 can adjust the heights of the rear pressure roller 16 and the front pressure roller 18 at the lowered position Pd (ie, the lower limit position) by adjusting the assembly position of the stopper 82 .

In addition, as shown in FIGS. 9 to 11 , the tape sticking unit 10 includes an upper limit height adjustment portion 85 that adjusts the height of the front pressure roller 18 at the raised position Pu with respect to the height of the conveyance path 4 (conveyor belt 47 ).

The upper limit height adjusting portion 85 is provided at a position where the right side wall 11r abuts against the side swing arm 13 before the raised position Pu (please refer to FIG. 11 ). Therefore, the upper limit height adjusting part 85 restricts the rear side pressure roller 16 and the front side pressure roller 18 so that the rear side pressure roller 16 and the front side pressure roller 18 do not continue to rise.

Furthermore, the assembly position of the upper limit height adjustment part 85 on the right side wall 11r can be adjusted up and down. Therefore, the upper limit height adjusting portion 85 can adjust the heights of the rear side pressure roller 16 and the front side pressure roller 18 at the raised position Pu (that is, the upper limit position).

In addition, as shown in FIGS. 7 to 10 , the lower front side of the adhesive tape sticking unit 10 has a brush 90 for cleaning the dust attached to the opposite ends Baa of a pair of flaps on the top of the box B. However, the brush 90 is not necessarily essential, and the tape applying unit 10 may not have the brush 90 . If there is a brush 90, as in the present embodiment, it is not necessarily provided at the lower front side of the tape sticking unit 10, and at least one of the lower front side or the lower rear side may be provided.

Next, for how to use the above-mentioned box sealing device 1, the step of sticking the tape T to the box B as shown in Figure 17 is mainly formed on the upper side Bu to form a pair of folded pieces Ba on the opposite end Baa and seal them. , through Figure 13 (a), 13 (b), 14 (a), 14 (b) and Figure 15 continue to explain. Moreover, in 13(a), 13(b), 14(a), 14(b) and FIG. 15, for the sake of clarity, the box B is shown by dotted lines.

The operator stands on the back side of the box sealing device 1 and turns on the action switch 49 to drive the conveyor belt 47. In order to prevent the flap Ba of Bu on the top of the box B placed on the box supply platform 22 from suddenly opening , press the lateral sides with your hands and push the box B straight toward the front (downstream side) of the conveying path 4. After the case B approaches the case conveying platform 21 , it is automatically conveyed through the conveying belt 47 and advances along the conveying path 4 .

Shortly after the box B advances on the conveying path 4, as shown in FIG. The pressure of the rear side pressure roller 16 is pasted on the front Bf of the casing.

Then the casing B continues to advance through the conveyor belt 47, as shown in Figure 13 (b), when the rear side pressure roller 16 is pushed up from the lowered position Pd to the raised position Pu, the front side pressure roller 18 is also applied with the rear side. The pressure rollers 16 are interlocked to rise from the descending position Pd to the ascending position Pu.

Then, the cutting knife push-up member 28 with the tape cutting arm 15 will abut against the corners of the front and upper parts of the box body B, so that the tape cutting knife 25 is also pushed up from the descending position Pd to the rising position Pu (please Refer to Figures 13(b), 14(a)). At this time, the cutter protection member 27 moves from the cover position Pa to the retracted position Pb.

And, after the rear side pressure roller 16 and the front side pressure roller 18 are pushed up to the raised position Pu, the biasing force (restoration force) of the biasing spring 32 acts below them, and the adhesive tape T is pushed up by the rear side pressure rollers. 16 and the front side pressing roller 18 are pushed to the casing B. Therefore, as shown in Figure 14 (a) and 14 (b), as the box body B advances in the conveying path 4, the rear side pressure roller 16 and the front side pressure roller 18 can push the adhesive tape T from the box body B to its flaps. The front end of the opposite end portion Baa of Ba is pasted to the rear.

As shown in Figure 14(b), after the rear end of the advancing box B passes through a position more forward than the rear side pressure roller 16, the box B that originally bears the pressure of the rear side pressure roller 16 is no longer there. in situ. Therefore, the extending piece Tr of the adhesive tape T extending backward from the rear end of the case B is kept stretched in the front-rear direction by the pressure applied by the rear-side pressure roller 16 .

Also, when the cutting knife push-up member 28 with the tape cutting arm 15 is at the rising position Pu, the side of the tape T does not directly press the box B down through the tape T, but as shown in Figure 14 (b) Shown by the box body B indicated by the dotted line, when the rear end of the box body B passes through the position more forward than the rear end 28rr of the cutting knife pushing up member 28, it originally pushes up the cutting knife pushing up member 28 (tape cutting arm 15) Box B is no longer in place. Therefore, the tape cutting arm 15 is lowered from the raised position Pu to the lowered position Pd by the urging force of the urging spring 33 . At this time, the extending piece Tr extending backward of the tape T can be cut off by the tape cutting knife 25 (please refer to FIG. 14( b )).

Next, as shown in Figure 15, when the rear end of the box body B passes through the position more forward than the front side pressure roller 18, the front side pressure roller 18 will be pushed through the force of the force spring 32 due to the absence of the support of the box body B. Descend to descending position Pd. At this time, in the cut tape T, the remaining part of the extended piece Tr that remains in the state of extending from the rear end of the box B to the rear will be pushed to the back Br of the box B by the front pressure roller 18 to be pasted. (Please refer to Figure 15).

On the other hand, among the cut tape T, the tape lower part Td suspended downward from the guide member 64 while being held by the guide member 64 is arranged on the rear side of the rear pressure roller 16 in a suspended state. Nearby Ar (please refer to Figure 15), ready to be pasted to the front Bf of the box B that continues to be conveyed.

Next, as described above, when the front pressure roller 18 descends from the raised position Pu to the lowered position Pd, the rear pressure roller 16 also descends (returns) to the lowered position Pd in conjunction with the operation of the front pressure roller 18 . And, as shown in FIG. 16 , when the rear pressure roller 16 descends from the raised position Pu to the lowered position Pd, the pull-up roller 65 can move from the rear retracted position Pr to the front as the connecting arm 14 moves to the front. The pull-up position Pf (please refer to the thick arrow DA in FIG. 16 ), and pull up the tape lower part Td (please refer to the thick arrow DB in FIG. 16 ) hanging down from the guide member 64 .

As a result, the tape lower portion Td disposed near the rear side Ar of the rear pressure roller 16 at the descending position Pd does not hang down excessively from the position of the rear pressure roller 16 .

Therefore, when the adhesive tape lower part Td disposed near the rear side Ar of the rear side pressure roller 16 is pasted to the front Bf of the box B to be continuously conveyed through the rear side pressure roller 16, as long as the method is the same as the above-mentioned steps, That is, the lower part Td of the tape can be attached to the front Bf of the box B with an appropriate length.

Through the above steps, the operation of pasting the tape T on the box B is completed.

As shown in FIGS. 1 to 5 , the sealing device 1 of the present embodiment includes a case conveying unit 40 and an adhesive tape sticking unit 10 as described above, and the case conveying unit 40 conveys the case from the rear of a conveying path 4 B to the front; the tape sticking unit 10 sticks the tape T on a box B along the conveying direction (Lf); wherein, the top Bu of the box B has an opening, from the lateral sides of the opening to the central side There is a pair of flaps Ba that can close the opening. There is a pair of opposite ends Baa on the flaps Ba, and the tape T is pasted on the opposite ends Baa along the conveying direction (Lf) (please refer to the figure 17). As shown in Figures 7 to 12(a) and 12(b), the adhesive tape sticking unit 10 includes a rear side pressure roller 16 (pressure application part) and a pull-up roller 65 (pull-up means), and the rear side pressure roller 16 It can be moved between the descending position Pd and the ascending position Pu which is further in front of and above the descending position Pd. When it is at the descending position Pd, it presses the tape T to the front Bf of the box B. When it is at the ascending position Pu is to press the adhesive tape T to the opposite end Baa of the box body B; and pull up the roller 65, especially as shown in Figure 16, when the rear side pressing roller 16 descends from the rising position Pu to the falling position Pd , the lower portion Td of the adhesive tape located near the rear side Ar of the rear pressing roller 16 is pulled up.

According to the above structure, when the rear pressing roller 16 is at the raised position Pu (please refer to FIG. 12( b )), it is located at a position further forward and above than the lowered position Pd (please refer to FIG. 12( a )). Therefore, as shown in FIG. 15, when the rear side pressure roller 16 descends from the raised position Pu to the lowered position Pd, the lower part Td of the adhesive tape disposed near the rear side Ar of the rear side pressure roller 16 will press against the rear side. The rollers 16 move to the rear and descend simultaneously.

On the other hand, according to the above configuration, as shown in FIG. 16 , the position of the second guide roller 62 (tape supply position) is located higher than the rear side pressing roller 16 located at the descending position Pd; The adhesive tape T is routed along the shortest path from the position of the second guide roller 62 to the position of the guide member 64 , and the pull-up roller 65 is provided further ahead of the shortest path (dotted straight line La).

Therefore, when the rear pressure roller 16 descends from the raised position Pu to the lowered position Pd, the lower portion Td of the adhesive tape disposed near the rear side Ar of the rear pressure roller 16 moves to the rear simultaneously with the rear pressure roller 16. When descending, pulling up the roller 65 can hinder it. In other words, the lower portion Td of the adhesive tape will be pulled up and forward by the pull-up roller 65 . In this way, the tape lower portion Td disposed near the rear side Ar of the rear pressure roller 16 does not hang down excessively from the position of the rear pressure roller 16 .

At this time, if the adhesive tape T is started to be pasted on the box body B using the rear pressing roller 16, as shown in FIG. The side pressing rollers 16 are pressed against the front Bf of the box body B for sticking.

At the same time, the lower portion Td of the adhesive tape disposed near the rear side Ar of the rear side pressure roller 16 will not hang down too much from the position of the rear side pressure roller 16 as described above. Therefore, even if the box body B is a thin box body, The lower part Td of the adhesive tape can also be attached to the length of the front part of the box body B (in other words, the lower part Td of the adhesive tape hanging down near the rear side Ar of the rear pressure roller 16 will be located at the front side Bf of the box body B). position above the lower end).

Therefore, even if the box B is thin, the adhesive tape T can be properly pasted not only on the opposite end Baa of the flap Ba formed on the upper surface having the opening, but also on the side surface not adjacent to the upper surface. It is on the front Bf.

Specifically, there is no risk of causing the following situation: the lower end of the adhesive tape T pasted on the front Bf of the box B is longer than the lower end of the box B and remains, and the remaining part is reversely attached to the belt of the box conveying unit 40. The surrounding components such as the conveying roller 5; or the box B after the tape T is pasted is not beautiful; or the tape T pasted on the box B is peeled off.

Even, it is not necessary to store the thin distribution (content) in the thick box B far exceeding the thickness of the thin distribution as in the prior art. In this way, if it is transported by truck, the shelves of the truck and the logistics warehouse for temporary storage can accommodate more distributions, which can definitely increase the stowage capacity and improve the delivery efficiency of distributions. In addition, since the thin delivery can be enclosed in the box B suitable for its size, there is no need to prepare too many cushioning and fixing materials inside the box B to fix the thin delivery, which can reduce the waste of resources.

Moreover, because the box sealing device 1 of this embodiment can cooperate with the automatic box sealing operation to stick the adhesive tape T on the thin box B, the distributions sealed through the thin box B can also achieve the goal of mass distribution.

In this way, even if the size (thickness) of a delivery that can be put into a general post box is less than 40mm for a large one and less than 30mm for a small one, the sealing device 1 of this embodiment can automatically stick the tape T to a thin one. Sealing of box B to meet the size requirements of the mailbox.

Therefore, the post office mailbox can be used to deliver a large number of deliveries sealed in the thin box B, especially in the delivery process, which can greatly reduce the labor and cost spent on the delivery collection operation.

In another embodiment of the present invention, as shown in Figure 16, the pull-up roller 65 will move the tape T according to the movement of the rear pressure roller 16 from the raised position Pu to the lowered position Pd (please refer to Figure 15). To pull up the direction, that is to move forward.

According to the above structure, when the rear pressing roller 16 returns from the raised position Pu to the lowered position Pd, the pulling roller 65 itself moves the tape T in the pulling direction (that is, the pulling position Pf which is further forward than the retracted position Pr). Therefore, for example, compared with the case where the pull-up roller 65 pulls up the lower portion Td of the tape at a fixed position (for example, always fixed at the pull-up position Pf), the lower portion Td of the tape can be pulled up more positively.

Next, the rear pressing roller 16 will reset from the raised position Pu to the lowered position Pd at a time point after the adhesive tape T is attached to the box body B. Secondly, according to the above structure, the pull-up roller 65 is configured to pull up the tape T at this point in time, so this action of pulling up the tape T does not affect the sticking operation of the tape T to the box B. And, before starting to stick the adhesive tape T to the next box body B that is transported in, the pull-up roller 65 can pull up the lower portion Td of the adhesive tape disposed near the rear side Ar of the rear pressure roller 16 to an appropriate position. Hang down the length, in order to prepare for the sticking operation of the tape T to the next box B that is transported in.

This invention aspect is shown in Figure 14 (a), 14 (b) and Figure 15, comprises front side pressure application roller 18 (front side pressure application part), and it is formed on rear side pressure application roller 16 (rear side application of pressure part). Pressing part) on the front side, and can move between the descending position Pd and the ascending position Pu. When it is at the descending position Pd, it will press the tape T to the back Br of the box B, and when it is at the ascending position Pu , it will press the tape T to the opposite end Baa of the box B. As shown in Figures 7 to 15, this aspect of the invention still includes the rear side rocking arm 12 that makes the rear side pressure roller 16 swing between the lowered position Pd and the raised position Pu; makes the front side pressure roller 18 in the lowered position Pd and the front side rocking arm 13 that rocks between the rising position Pu; and the connecting arm 14 that connects the rear side rocking arm 12 and the front side rocking arm 13, and the connecting arm 14 is roughly the same as the rear side pressure roller 16 and the front side pressure roller 18 The height is linked to the rear side rocking arm 12 and the front side rocking arm 13 to make it move up and down. As shown in FIGS. 10-12 (a), 12 (b) and FIG. 16, the pull-up roller 65 is an element that is arranged on the connecting arm 14.

According to the above structure, when the rear side pressure roller 16 returns from the raised position Pu to the lowered position Pd, the connecting arm 14 moves in conjunction with the rear side swing arm 12 . And, because pull-up roller 65 is arranged on this connecting arm 14, as shown in Figure 16, when rear side pressing roller 16 resets from ascending position Pu to descending position Pd, pull-up roller 65 itself can go to the bottom of adhesive tape Td. Pull up to move.

That is, when the rear pressure roller 16 moves from the raised position Pu to the lowered position Pd, the pull-up roller 65 will pull up more positively than when pulling up the lower portion Td of the tape at a fixed position as described above. Tape lower Td.

Moreover, because the pull-up means 65 is set on the connecting arm 14, when the rear pressure roller 16 descends from the raised position Pu to the lowered position Pd, the pull-up means 65 will move forward even without additionally preparing elements such as a driving source. When the rear side pressure roller 16 descends, the action of the connecting arm 14 can also be used to move the pull-up roller 65 to the front efficiently as described above.

As shown in Figure 12 (a) and 12 (b), this invention includes a tape cutting arm 15 (tape cutting means), which is near the front side of the rear pressure roller 16, at the descending position Pd and rising Move between the positions Pu, and cut the tape T when it moves from the rising position Pu to the falling position Pd; the tape cutting arm 15 has a tape cutting knife 25, and the tape cutting knife 25 is configured to press as close as possible to the rear side Roller 16 sides are preferably.

Here, when the tape cutting arm 15 moves from the raised position Pu to the lowered position Pd, the tape T will be cut by the tape cutting knife 25 on the tape cutting arm 15, and placed in a hanging state behind the lowered position Pd. The vicinity Ar of the rear side of the pressing roller 16 .

And, as mentioned above, because the tape cutting knife 25 is arranged as close as possible to the position on the side of the rear pressure roller 16, the tape T can be cut by the tape cutter 25 at a position close to the side of the rear pressure roller 16. cut.

Therefore, the length of the tape bottom Td hanging down can be shortened as much as possible, so that the tape bottom Td disposed near the rear side Ar of the rear side pressure roller 16 at the descending position Pd will not have an excess length hanging over the rear side pressure roller 16. lower position.

As shown in Figures 9 to 11 of this invention, the adhesive tape sticking unit 10 includes a lower limit height adjustment part 80 (height adjustment means), which can adjust the rear pressure roller at the lowering position Pd relative to the height of the conveying path 4 16 in height.

According to the above structure, the height of the rear pressing roller 16 at the descending position Pd can be adjusted with respect to the height of the box B transported along the conveyance path 4 through the lower limit height adjusting portion 80, so that even a thin box B , the rear pressure roller 16 can also stick the tape T with respect to the front Bf of the box B at an appropriate height.

Therefore, even if the box B is thin, the present invention can properly stick the tape T on the front Bf of the box B, and at the same time, as the box B advances, the rear pressure roller 16 can be surely pushed up from the lowered position Pd. to ascending position Pu.

In addition, the box sealing device of the present invention is not limited to the structure and embodiments of the box sealing device 1 mentioned in the above embodiments.

For example, the above-mentioned embodiment mentions that in the process of automatic sealing of the box by the adhesive tape T attached to the thin box B by the sealing device 1, the box B as the sealing object is applicable to the case of a thin box, but it is not limited to a thin box The same box B, the general box B (thick box B) is also applicable.

In other words, the box sealing device 1 of the present embodiment can arbitrarily set the heights of the tape sticking unit 10 and the upper box conveying unit 40U by adjusting the height of the unit support body 3, so regardless of the thickness of the box B, it can be performed The automatic sealing operation of pasting the tape T on the box B.

Also, with regard to the pull-up means of the present invention, if the rear side pressure roller 16 is lowered from the raised position Pu to the lowered position Pd, the lower portion Td of the tape located near the rear side Ar of the rear side pressure roller 16 can be pulled up, and the It is limited to the structure adopting the pull-up roller 65 of this embodiment.

Specifically, the pulling means of the present invention is not limited to the structure including the connecting arm 14 , for example, it can be directly provided on the side wall 11 , or it can be provided on the rear swinging arm 12 . Also, the pull-up means of the present invention is not limited to a structure in which the pull-up roller 65 itself moves toward the pull-up direction of the lower portion Td of the adhesive tape, and may also be adopted according to the relative position of the pull-up roller 65 at a fixed position and the rear pressure roller 16. Change, and pull up the structure of the lower part of the tape Td.

The pull-up means of the present invention is not limited to the pull-up roller 65 in the above-mentioned embodiment, adopts the structure that takes assembly part as axle and rotates around it, also can adopt the structure that generally can not rotate relative to assembly part like latch.

1: Box sealing device 10: Adhesive tape unit 11r: right wall 11l: left side wall 12: Shake the arm back (shake the arm) 13: Shake the arm from the front 14: link arms 14f, 14r, 17, 19: axis 15: Tape cutting arm (tape cutting means) 16: Rear pressure roller (pressure application part, rear side pressure application part) 18: Front side pressure roller (front side pressure part) 2: Abutment 21: Box conveyor table 22: Cabinet supply table 23: The cabinet is sent out to the stage 24: Unit support frame 25: tape cutting knife 26: axis 27: Cutter protection member 27a: Shaft branch 28: The cutting knife pushes up the component 28r: Rear 28rr: Backend 29: Cutter assembly position adjustment bracket 3: unit support body 30: Push up component assembly position adjustment bracket 31: torsion spring 32, 33: force spring 35: Tape supply roller 36: support plate 4: Conveyor road 40: Box conveying unit 40U: upper box conveying unit 40D: lower box conveying unit 43: Conveyor Belt Conveyor 44: driven roller 45: Drive roller 46: motor 47: conveyor belt 47du: above 47ud: below 48: Box guide track 49: Action switch 5: Conveyor roller 50: Conveying road width adjustment unit 51:Guide track assembly department 52: Width adjustment link 53: Width adjustment handle 60: tape guide structure 61: The first guide roller 62: Second guide roller 63: Auxiliary guide roller 64: guide member 65: pull up the roller (pull up means) 80: Lower limit height adjustment part 81:Protrusion 82: stop piece 85: upper limit height adjustment department 90: brush 125: Pillar Ar: Around the rear side of the rear pressure roller B: Box Ba: Fold Bf: the front of the cabinet Bu: the top of the box Br: the back of the cabinet Baa: Opposite ends of a pair of flaps L: Front and rear directions of the device Lf: front of device Lr: the rear of the device Lf: conveying direction T: Tape Pa: Case position Pb: retreat position Pd: drop position Pu: rising position TA: tape raw material Ta: face to face Tb: Non-joint surface Td: Lower part of the tape W: the left and right direction of the device Wr: the right side of the device Wl: the left side of the device Z: The up and down direction of the device Zu: top of the device

Fig. 1 is the exterior view of the box sealing device of the present embodiment. Fig. 2 is the right side view of the box sealing device of the present embodiment. Fig. 3 is the plan view of the box sealing device of the present embodiment. Fig. 4 is the back enlarged view of the box sealing device of the present embodiment. Fig. 5 is a sectional view showing the main part along the line B-B in Fig. 3 and looking in the direction of the arrow. Fig. 6 is an enlarged cross-sectional view showing main parts along line A-A of Fig. 2 and viewed in the direction of the arrow. Fig. 7 is an external view showing the tape sticking unit with a part of dotted lines. Fig. 8 is an external view of the adhesive tape sticking unit shown by a part of dotted line, viewed from the front, the left and the bottom at the same time. Fig. 9 shows the appearance of the adhesive tape sticking unit with a part of dotted lines, viewed from the rear, left and top. Fig. 10 is a right side view of the adhesive tape sticking unit shown by a part of dotted line when the pressing part is in the descending position. Fig. 11 is a right side view of the adhesive tape sticking unit shown by a part of dotted line when the pressing part is in the raised position. Fig. 12 (a) is the enlarged view of the main parts of Fig. 10, and represents the cutter arm with dotted lines in Fig. 10; Fig. 13(a) is an explanatory diagram showing the state of adhesive tape on the front of the box; Fig. 13(b) is an explanatory diagram of the effect of the state after the adhesive tape is applied in the same case. Fig. 14(a) is an explanatory diagram showing the state of tape on the case; Fig. 14(b) is an explanatory view of the effect after pasting the tape in the same case. Fig. 15 is an explanatory diagram showing the appearance of adhesive tape on the back of the box. Fig. 16 is an explanatory diagram showing the state of pulling up the tape by pulling up the roller. Fig. 17 is an external view of a thin box body as the sealing object.

10: Adhesive tape unit

11r: right wall

111: left wall

12: Shake the arm back (shake the arm)

13: Shake the arm from the front

14: link arms

14f, 14r, 17, 19: axis

15: Tape cutting arm (tape cutting means)

16: Rear pressure roller (pressure application part, rear side pressure application part)

18: Front side pressure roller (front side pressure part)

25: tape cutting knife

26: axis

27: Cutter protection member

27a: Shaft branch

28: The cutting knife pushes up the component

28r: Rear

30: Push up component assembly position adjustment bracket

31: torsion spring

32, 33: force spring

36: support plate

60: tape guide structure

61: The first guide roller

62: Second guide roller

63: Auxiliary guide roller

65: pull up the roller (pull up means)

80: Lower limit height adjustment part

81:Protrusion

82: stop piece

85: upper limit height adjustment department

90: brush

Pa: Case position

Pd: drop position

Pu: rising position

L: Front and rear directions of the device

Lf: front of device

Lr: the rear of the device

Z: The up and down direction of the device

Zu: top of the device

Claims (4)

A box sealing device, comprising: A box conveying unit, which transports a box from the rear to the front of a conveying road; and An adhesive tape sticking unit, which sticks an adhesive tape on the box body along the conveying direction; wherein, the upper side of the box body has an opening, protruding from the lateral two outer sides of the opening to the central side, a pair of closing the A flap of the opening, the flap has a pair of opposite ends, and the adhesive tape is pasted on the opposite ends along the conveying direction; Wherein, the adhesive tape sticking unit includes: A pressing part, which is moved between a lowered position and an elevated position above the lowered position, presses the adhesive tape to the front of the box when it is located at the lowered position, and presses the tape to the front of the box when it is located When in the raised position, press the tape against the opposite end of the box; a pulling means, which is used to pull up the lower part of the tape located near the rear side of the pressing part when the pressing part is lowered from the raised position to the lowered position; The pull-up means moves the adhesive tape in a pull-up direction according to the movement of the press-applying part from the raised position to the lowered position, so that the distance between the pull-up means and the press-applied part is elongated. In the case sealing device for a box according to claim 1, the adhesive tape is routed along a routing path under the adhesive tape, and the routing path under the adhesive tape extends downward from a position above the pulling means toward the pressing portion, and contains: a rocking arm that rocks the pressure-applying portion between the lowered position and the raised position; and a connecting arm, which is connected to one end of the rocking arm, and extends from the one end to the other end through the wiring path under the adhesive tape; the pulling means is attached to the linking arm; When the pressing part descends from the raised position to the lowered position, the connecting arm is linked with the displacement of the swinging arm, and the pulling means moves from the one end side to the other end side relative to the wiring path under the adhesive tape . According to the box sealing device of claim 2, when the pressing part descends from the raised position to the lowered position, the pulling means advances in a straight line from the one end side relative to the wiring path under the adhesive tape to the other end side. The box sealing device according to any one of Claims 1 to 3, further comprising a tape cutting means, which is arranged at a position close to the side of the pressing part, and near the front side of the pressing part and It moves between the descending position and the ascending position, and cuts the adhesive tape when it moves from the ascending position to the descending position.

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