JP2023132263A - Sealing device - Google Patents

Abstract

To improve beauty and quality of a packaging box after sealing by suppressing adhesion failure during sealing and suppressing scratch and dent on the packaging box during sealing.SOLUTION: A sealing device 10 for sealing a half-box carton 100A formed from a blank sheet 100 includes: a long pressure welded guide member 113 supported parallel to a base folding line of a flap of the half-box carton 100A; and a plurality of pressure members 114 that distributes in a longitudinal direction of the pressure welded guide member 113, whose protruding height from the pressure welded guide member 113 is configured to be independently variable; and each having an independently deformable elastic member 114c, in which a protrusion 114a of the plurality of pressure members 114 independently press an outer surface of the flap of the half-box carton 100A, and thereby the flap is pressed onto a trunk part of the half-box carton 100A to seal the half-box carton 100A.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to a packaging device for packaging products, and particularly to a packaging device that performs an operation of sealing a half-box carton formed from a blank sheet and filled with a product.

In recent years, in the production line for packaging products, a box-making/packaging process has been introduced in which a half-box carton is made from a blank sheet of a wrap-round carton, the product is stuffed into the box, and then the box is sealed. Patent Document 1 discloses a box sealing machine that applies glue to the upper surface of the front and rear flaps of a corrugated cardboard box (half-box carton), then bends the left and right flaps, and presses the left and right flaps from above with a certain force to seal the box. is disclosed.

Japanese Unexamined Patent Publication No. 57-86406

However, in the configuration where the flaps are pressed to seal the box, it is necessary to press with an appropriate force; if the pressing force is too weak, the adhesion will be insufficient, and on the other hand, if the pressing force is too strong, it may deform the cardboard box. There was a problem with the problem.

The present disclosure has been made in view of the above-mentioned problems, and an object of the present disclosure is to provide a box sealing device that suppresses adhesion failure during box sealing and suppresses scratches and dents on the packaging box during sealing. do.

A packaging device that is one aspect of the present disclosure is a packaging device that seals a half-box carton formed from a blank sheet, the packaging device including a long box supported parallel to a fold line at the base of a flap of the half-box carton. A pressure contact guide member having a slat shape; and elastic members which are distributed in the longitudinal direction of the pressure contact guide member and whose protrusion heights from the pressure contact guide member can be independently changed, and each of which is independently deformable. a plurality of pressure contact members having a structure, wherein the protrusions of the plurality of pressure contact members independently press the outer surfaces of the flaps of the half-box carton, so that the flaps are pressed against the body of the half-box carton. The half-box carton is sealed by being crimped.

According to the packaging device according to one aspect of the present disclosure, it is possible to provide a packaging device that suppresses adhesion failure during sealing and also suppresses scratches and dents on the packaging box during sealing.

(a) is a plan view of a wrap-round carton for producing a half-box carton supplied to the sealing device 10 according to the embodiment, and (b) is a plan view of a half-box carton supplied to the sealing device 10. FIG. It is a perspective view showing an aspect of a box-sealing process including a box-sealing device 10 according to an embodiment. 1 is a front view showing the configuration of a box sealing device 10. FIG. 1 is a plan view showing the configuration of a box sealing device 10. FIG. FIG. 2 is a perspective view showing a state in which a half-box carton is sealed by the sealing device 10. FIG. FIG. 3 is a diagram showing details of the configuration of a pressure contact member 114 and a pressure contact guide member 113. (a) is a schematic front view for explaining the box-sealing operation by the box-sealing device 10, and (b) is a left side view. (a) is a schematic front view for explaining the box-sealing operation by the box-sealing device 10, and (b) is a left side view. (a) is a plan view showing the state of the pressure contact member 114 and the pressure contact guide member 113 during the sealing operation, and (b) is a front view.

≪Overview of the mode for carrying out the invention≫
A packaging device according to an embodiment of the present disclosure is a packaging device that seals a half-box carton formed from a blank sheet, and is supported parallel to a bending line at the base of a flap of the half-box carton. An elongated pressure contact guide member, and elastic members which are distributed in the longitudinal direction of the pressure contact guide member and whose protruding heights from the pressure contact guide member can be independently changed, and which are independently deformable. a plurality of pressing members having a plurality of pressing members, and the protruding portions of the plurality of pressing members independently press the outer surface of the flap of the half-box carton, so that the flap is pressed against the body of the half-box carton. The half-box carton is sealed by crimping the half-box.

With such a configuration, it is possible to suppress poor adhesion during sealing, as well as suppress scratches and dents on the packaging box during sealing, thereby improving the aesthetic appearance and quality of the packaging box after sealing.

In another aspect, in the aspect described in any one of the above, the pressure contact guide member has a plurality of holes at predetermined intervals in the longitudinal direction, and the pressure contact member is arranged in the holes. The pin is inserted so as to be freely inserted and removed, and the elastic member is a coil spring that can be deformed in the direction of insertion and removal of the pin, and the pin may be configured to press the flap by a reaction force of the coil spring.

With such a configuration, it is possible to specifically realize a configuration in which the protrusions of the plurality of pressing members press the outer surface of the flap of the half-box carton, respectively, independently.

In another aspect, the aspect described in any one of the above includes an arm that supports the pressure contact guide member, and a robot hand that supports the arm, and as the robot hand moves, the pressure contact guide member may be supported in parallel with a bending line at the base of the flap of the half-box carton, and as the arm moves, the pressing member may press the flap against the body of the half-box carton.

With such a configuration, the pressure contact guide member can be easily supported in parallel with the bending line of the base of the flap of the half-box carton by using the robot hand.

In addition, as the arm moves, the pressure contact member presses the flap to the body of the half-box carton 100A, so that by simply changing the moving distance of the arm, the pair of pressure contact guide members can be adjusted to the size of the half-box carton. It becomes easy to reduce or enlarge the interval between.

≪Embodiment≫
The configuration of a box sealing device 10 according to an embodiment will be explained using the drawings. Here, in this specification, the X direction, Y direction, and Z direction in each figure may be referred to as the width direction, depth direction, and height direction, respectively, and the positive direction in the height direction is referred to as the "up" direction, The negative direction may be referred to as the "down" direction.

Further, the scale of the members in each drawing is not necessarily the same as the actual one. Furthermore, in this specification, the symbol "~" used to indicate a numerical range includes the numerical values at both ends thereof. Further, the materials, numerical values, etc. described in this embodiment are merely exemplified as preferable ones, and the present invention is not limited thereto. Further, changes can be made as appropriate without departing from the scope of the technical idea of the present disclosure. Moreover, combinations of parts of the configurations with other embodiments are possible within the range that does not cause any contradiction.

<Blank sheet and half-box carton configuration>
The configuration of the blank sheet 100 supplied to the box sealing device 10 according to an embodiment of the present disclosure and the half-box carton 100A formed from the blank sheet 100 will be described.

FIG. 1(a) is a plan view of a wrap-around carton for producing a half-box carton to be supplied to the sealing device 10 according to the embodiment.

The blank sheet 100 is formed into a box shape by folding along the bending line.

FIG. 1(a) is a diagram showing a blank sheet 100, which is composed of a base portion 101, a front wall surface 102, a rear wall surface 103, and a lid portion 104 as main parts. In the portion 104, flaps 105L to 108L constituting the left side wall and flaps 105R to 108R constituting the right side wall are arranged in series with a bending line in between. In addition, a flap 109 that overlaps the outer surface of the front wall surface 102 and serves as a glue margin after the box is formed is provided in succession on the lid portion 104 across a bending line.

FIG. 1(b) is a perspective view of a half-box carton 100A formed from a blank sheet 100 by the sealing device 10. As shown in FIG. 1(b), the half-box carton 100A is made by bending the front wall surface 102, the rear wall surface 103, the flaps 105L to 107L, and the flaps 105R to 107R of the blank sheet 100 upward along their respective root bending lines. , is a half-box carton with a lid formed with the base surface portion 101 as the bottom surface. The base surface portion 101 of the blank sheet 100 serves as a reference surface in box manufacturing. Further, the flaps 106L and 107L enter inside the flap 105L, and the flaps 106R and 107R enter inside the flap 105R, forming a left side wall and a right side wall, respectively.

This half-box carton 100A has an adhesive applied to a part of the inner surface of the flaps 105L, 105R, 108L, 108R, and 109, and the inner surface of the flap 105L is adhered to the outer surface of the side wall surfaces 106L and 107L. The inner surface of 105R is formed by bonding with the outer surfaces of side wall surfaces 106R and 107R to form a box.

Then, for the half-box carton 100A in which the product is enclosed by some method, in the sealing process, the inner surface of the flap 109 forms the outer surface of the front wall surface 102, and the inner surfaces of the flaps 105L and 108L form the left side wall of the flaps 106L and 107L. The inner surfaces of the flaps 105R and 108R are respectively adhered to the outer surfaces of the flaps 106R and 107R forming the right side wall, thereby forming a carton 100B containing the product.

<About the configuration of the sealing unit 1>
Next, the configuration of the sealing unit 1 will be explained using the drawings.

The sealing unit 1 is a mechanical unit that forms a carton 100B by folding the lid 104 and the like of a half-box carton 100A made from a blank sheet 100 of a wrap-round carton and sealing the half-box carton 100A. FIG. 2 is a perspective view showing an aspect of the packaging unit 1 including the packaging device 10 according to the embodiment.

The box sealing unit 1 includes a box sealing device 10, a carry-in conveyor IC, and a carry-out conveyor OC.

The box sealing device 10 is a mechanism for sealing the half-box carton 100A supplied by the carry-in conveyor IC to form a carton 100B containing a product.

The carry-in conveyor IC is a conveyance means that transfers the half-box carton 100A containing the product from the previous step to the position of the sealing device 10 (FIG. 2, T1). The carry-out conveyor OC is a conveying means that transfers the sealed carton 100B from the position of the sealing device 10 to a subsequent process (T2 in FIG. 2). These conveying means may be one in which a belt is transmitted by rotation of a motor, or may be driven by a linear motor.

Further, the box sealing unit 1 includes a control section (not shown) that controls the box sealing device 10, the carry-in conveyor IC, and the carry-out conveyor OC, and the respective elements are controlled to operate in conjunction with each other. The control unit is realized, for example, as a computer including a general CPU (Central Processing Unit), a RAM (Random Access Memory), and a program executed by these. The control unit reads a control program for the packaging unit 1 from a storage device or the like into a RAM and executes it, so that each element constituting the packaging unit 1 operates in conjunction with each other. is controlled to realize the functions of the sealing unit 1.

With this configuration, in the sealing unit 1, the half-box carton 100A containing the product PR (not shown) is carried in by the carry-in conveyor IC, the half-box carton 100A is sealed by the sealing device 10, and the half-box carton 100A is sealed by the carry-out conveyor OC. An action is performed to carry out the boxed carton 100B.

In the present embodiment, the aspect of the box sealing device 10 will be described using as an example a blank sheet of a wrap-round carton for forming a half-box carton 100A as the blank sheet 100 to be formed. However, the blank sheet 100 may have other shapes other than the wrap-round shape, such as a straight shape.

<Configuration of box sealing device 10>
Next, the configuration and operation of the box sealing device 10 will be explained.

3 is a front view showing the configuration of the box sealing device 10, FIG. 4 is a plan view, and FIG. 5 is a perspective view showing a state in which the box sealing device 10 seals a half-box carton.

The box sealing device 10 has a work head 11, a robot hand 12, a robot arm 13, and a robot body base 14.

The robot arm 13 is, for example, a ceiling-suspended robot arm that is suspended from a member located above the robot arm 13 itself, extending from a robot body base 14 installed on the ceiling of the facility or the like. For example, in this example, it is installed above the carry-in conveyor IC and the carry-out conveyor OC.

The robot arm 13 rotatably supports the work head 11 via the robot hand 12, and moves the work head 11 held by the pressure contact guide member 113 to a predetermined position in a two-dimensional space consisting of the YZ plane. Any mechanism that allows this can be used.

Further, the robot arm 13 includes a driving means (for example, a motor), and is driven based on a control signal issued from a control section (not shown), and can change the position of the pressure contact guide member 113 in the YZ plane.

The robot hand 12 is a holding device that is connected to the tip of the robot arm 13 to move within a two-dimensional space within the YZ plane, and holds the work head 11 .

The work head 11 is rotatably held by a robot hand 12 connected to the tip of a robot arm 13, and is a mechanical part that moves in a two-dimensional space in the YZ direction to seal the half-box carton 100A. While closing the lid 104 by pressing the outer surface of the lid 104 from above, for example, flaps 105, 108, and 109 extending outward from the lid 104 and the base surface 101 are placed on the outside of the body of the half-box carton 100A. It functions as a work head for crimping and sealing the half-box carton 100A.

(Details of work head 11)
As shown in FIGS. 3, 4, and 5, the work head 11 includes a frame 111, an arm 112, a pressure contact guide member 113, a pressure contact member 114, a lid closing guide member 115, and a lid holding member 116.

The frame 111 constitutes a structural member of the work head 11 connected to the robot hand 12 via a pivot point.

The frame 111 is an elongated member extending in the horizontal direction, and is configured to have a length longer than the width of the half-box carton 100A. Further, the frame 111 is formed with a long slit 111a extending in the horizontal direction.

The arm 112 is a support member that is suspended downward from the frame 111 and supports the pressure guide member 113 so that the pressure member 114 can press the flap of the half-box carton 100A to the body. As the arms 112, two arms 112C, two arms 112R, and two arms 112L are arranged in parallel on the front side of the half-box carton 100A, two arms 112R on the right side, and two arms 112L on the left side (sometimes collectively referred to as "arms 112"). ).

Of these, the arm 112C is disposed near the connection portion between the robot hand 12 and the frame 111.

Further, the arms 112R and L have a movable module 112a at the upper end, and this movable module 112a is suspended in a slit 111a of the frame 111.

The movable module 112a can reciprocate within the slit 111a based on a control signal from a control unit (not shown), and the arms 112R and L change the position of the frame 111 in the longitudinal direction (in the XZ plane). It is freely configured.

The pressure guide member 113 is an actuator guide member that supports the pressure member 114 that is supported by the arm 112 and presses the flap of the half-box carton 100A, and guides the movement of the pressure member 114.

The pressure contact guide member 113 is a long member, and its longitudinal direction is arranged substantially parallel to the bending lines at the bases of the flaps 105, 108, and 109 of the half-box carton 100A, and is located opposite to the body of the half-box carton 100A. The length is approximately equivalent to the width of the surface.

On the front side of the half-box carton 100A, a press-contact guide member 113C extends in the horizontal direction (lateral direction) across two vertically extending arms 112C, and on the right side, a pressure contact guide member 113C extends vertically extending two arms 112C. Two pressure contact guide members 113R extend in the horizontal direction (depth direction) across the book arm 112R, and on the left side, horizontally extend across the two arms 112L extending in the vertical direction. Two press-contact guide members 113L extend in the depth direction (sometimes collectively referred to as "press-contact guide members 113").

Further, the pressure guide member 113 is provided with a plurality of pressure members 114 in the longitudinal direction.

The pressing member 114 is an actuator member that presses the outer surface of the flap 105, 108, or 109 of the half-box carton 100A to press the flap to the body of the half-box carton 100A. A plurality of pressure contact members 114 are distributed in a longitudinal direction at predetermined intervals in the longitudinal direction of the pressure contact guide member 113, and the protruding heights from the pressure contact guide member 113 can be independently changed. ing. In this example, a pressure contact member 114C is attached to the pressure guide member 113C located on the front side of the half box carton 100A, a pressure contact member 114R is attached to the pressure contact guide member 113R located on the right side, and a pressure contact member 114R is attached to the pressure contact guide member 114R located on the left side. 113L is provided with a pressure contact member 114L (sometimes collectively referred to as "pressure contact member 114").

The pressing members 114 each have independently deformable elastic members 114c (FIG. 6(a)), and the plurality of protrusions 114a independently press the outer surface of the flap of the half-box carton. , has the function of sealing the half-box carton 100A by crimping the flap onto the body of the half-box carton 100A.

FIG. 6 is a diagram showing the details of the configuration of the pressure contact member 114 and the pressure contact guide member 113, and is an enlarged sectional view of the connecting portion of the pressure contact member 114 and the pressure contact guide member 113. As shown in FIG. 6, a plurality of holes 113a are formed in the pressure guide member 113 at predetermined intervals in the longitudinal direction, and a flange-shaped sleeve 114b is erected around the holes 113a. There is. A pin 114a is removably inserted into the hole 113a and the sleeve 114b, and a coil spring 114c is inserted between the tip of the pin 114a and the pressure guide member 113. Thereby, the tip of the pin 114a is configured to generate a pressing force in the axial direction by the reaction force of the coil spring 114c.

The closing guide member 115 is supported by an arm 112C, and performs an initial closing operation by pushing the lid 104 of the half-box carton 100A, which is vertically extended, from the rear, and also performs an initial closing operation of the half-box carton 100A after closing the lid. On the front side, a pressing member 114 is an actuator member that holds the front wall surface 102 when pressing the flap 109.

The lid holding member 116 is an actuator member that is supported by the frame 111 and pushes the lid 104 of the half-box carton 100A tilted forward from above to complete the closing operation.

<Operation of the sealing device 10>
Next, the operation of the box sealing device 10 will be explained using the drawings.

7 and 8(a) are schematic front views for explaining the box-sealing operation by the box-sealing device 10, and FIG. 8(b) is a left side view. Note that the product is not shown.

The operation of the sealing device 10 involves sealing the lid 104 of the half-box carton 100A to form a carton 100B containing a product.

First, as shown in FIGS. 7(a) and 7(b), in the box sealing device 10, in the initial state, the work head 11 is stationary at the home position, and the press member 114, the lid closing guide member 115, and the lid part hold Member 116 is spaced apart from half-box carton 100A.

Next, as shown in FIGS. 8(a) and 8(b), the box sealing device 10 moves the robot arm 13 to move the work head 11 (in FIG. 8(b), in the negative direction in the Z direction and (in the negative direction in the The lid holding member 116 pushes the lid 104 of the half-box carton 100A in the tilted state from above to close the lid 104 (M2).

At this time, in front of the front wall surface 102 of the half-box carton 100A, the press-contact guide member 113C supported by the arm 112C is parallel to the bending line at the root of the flap 109, and as the robot hand 12 moves, the half-box carton 100A is moved. The box carton 100A is moved to a position facing the outer surface of the flap 109, and the outer surface of the flap 109 of the half-box carton 100A is pressed from the front by the pressure contact member 114c provided on the pressure contact guide member 113C (M4). As a result, an operation is performed in which the inner surface of the flap 109 coated with adhesive is pressed onto the outer surface of the front wall surface 102. At the same time, the closing guide member 115 holds the front wall surface 102 of the half-box carton 100A from the front.

Further, on the left side of the side wall surfaces 106L and 107L of the half-box carton 100A, the pressure contact guide member 113L supported by the arm 112L is in a state parallel to the bending line at the base of the flaps 105L and 108L, and the pressure contact guide member 113L is in a state parallel to the bending line at the base of the flaps 105L and 108L, and the pressure contact guide member 113L is in a state parallel to the bending line at the base of the flaps 105L and 108L. Accordingly, it moves to a position facing the outer surface of the flaps 105L and 108L of the half-box carton 100A. Then, by moving the arm 112L toward the center, the pressure member 114L supported by the pressure guide member 113L presses the outer surfaces of the flaps 105L and 108L of the half-box carton 100A from the left (M3). In this way, the inner surfaces of the flaps 105L, 108L coated with adhesive are pressed onto the outer surfaces of the side wall surfaces 106L, 107L.

Further, on the right side of the side wall surfaces 106R and 107R of the half-box carton 100A, the pressure contact guide member 113R supported by the arm 112R is in a state parallel to the bending line at the base of the flaps 105R and 108R, and the pressure contact guide member 113R is in a state parallel to the bending line at the base of the flaps 105R and 108R. Accordingly, it moves to a position facing the outer surface of the flaps 105R and 108R of the half-box carton 100A. Then, by moving the arm 112R toward the center, the pressure contact member 114R supported by the pressure contact guide member 113R presses the outer surfaces of the flaps 105R and 108R of the half-box carton 100A from the left (M3). As a result, the inner surfaces of the flaps 105R and 108R coated with adhesive are pressed onto the outer surfaces of the side wall surfaces 106R and 107R.

After the above operation, that is, the flaps 108L, 108R, 105L, 105R, and 109 of the lid part 104 of the half-box carton 100A are bent from their roots, the inner surfaces of the flaps 108L, 105L and the outer surfaces of the side wall surfaces 106L, 107L are glued together. , the inner surfaces of the flaps 108R and 105R are adhered to the outer surfaces of the side wall surfaces 106R and 107R, and the inner surface of the flap 109 and the outer surface of the front wall surface 102 are adhered, thereby forming a carton 100B containing the product.

FIG. 9(a) is a plan view showing the state of the pressure contact member 114 and the pressure contact guide member 113 during the sealing operation, and FIG. 9(b) is a front view.

According to the configuration of the work head 11 described above, when the pressure member 114 presses the outer surface of the flap of the half-box carton 100A, the outer surface of the flap 105, 108, or 109 of the half-box carton 100A and the pressure guide member 113 are pressed. Even when the flaps are not parallel in the longitudinal direction and are tilted by a distance δ1, the coil springs 114c deform independently, so that the plurality of pressing members 1141 to 1144 independently touch the outer surface of the flap of the half-box carton 100A. By pressing, the flaps 105, 108, or 109 can be crimped onto the body of the half-box carton 100A without any gaps, thereby sealing the box.

In addition, in the above description, the example in which pressing for sealing is performed using M3 and M4 has been explained, but the present invention is not limited to this. Depending on the state of the half-box carton 100A, it may be possible to complete the sealing by pressing only one of them, so it may be selected as appropriate.

<Effect>
(1) As described above, the box-sealing device 10 according to the embodiment is a box-sealing device 10 that seals the half-box carton 100A formed from the blank sheet 100. A long pressure contact guide member 113 is supported parallel to the bending line of the pressure contact guide member 113, and the pressure contact guide members 113 are distributed in the longitudinal direction so that the protrusion height from the pressure contact guide member 113 can be independently changed. and a plurality of pressing members 114 each having an independently deformable elastic member 114c, and the protruding portions 114a of the plurality of pressing members 114 independently press the outer surface of the flap of the semi-box carton 100A. By doing so, the flap is crimped onto the body of the half-box carton 100A, and the half-box carton 100A is sealed.

Conventional box sealing devices use an air cylinder as the driving source, and use a plate-shaped pressure contact member as the actuator to press the flap and seal the box, which increases the force required to seal the box. The excessive force was applied to the half-box carton, causing scratches and dents on the packaging box, which could degrade the appearance and quality of the finished product. Additionally, extra force may be applied to the contents.

In addition, in conventional box sealing devices, the half-box carton is formed by bending it at the ridgeline, so its shape varies, and the flap surface of the half-box carton is inclined with respect to the plate-shaped pressure member. If the flap is completely covered, it may not be possible to press the entire width of the flap, resulting in insufficient adhesion.

On the other hand, according to the above-mentioned box sealing device 10, the plurality of pressing members 114 are caused by the reaction force of the independently deformable elastic members 114c to cause the plurality of protrusions 114a to touch the outer surface of the flap of the half-box carton. Since each element is configured to press independently, the load applied to the drive source can be limited to within the range of the force that urges the elastic member 114c, so a force that greatly exceeds the force required for sealing the half-box carton is applied to the half-box carton. Problems such as being biased and causing scratches and dents on the packaging box can be greatly reduced.

Furthermore, according to the above-described box sealing device 10, since the elastic members 114c deform independently, the plurality of pressing members 114 independently press the outer surfaces of the flaps of the half-box carton, so that the flaps are pressed against the pressing guide. Even when the half-box carton 100A is tilted relative to the member 113, the flaps 105, 108, or 109 can be properly pressed against the body of the half-box carton 100A to seal it.

As a result, in a box sealing device that seals half-box cartons, it suppresses adhesion failure during sealing, and also suppresses scratches and dents on the packaging box during sealing, improving the aesthetic appearance and quality of the packaging box after sealing. can be improved.

(2) Furthermore, the box sealing device 10 includes an arm 112 that supports the pressure guide member 113 and a robot hand 12 that supports the arm 112, and as the robot hand 12 moves, the pressure guide member 113 is moved in half. The flaps 105, 108, 109 of the box carton 100A are supported parallel to the bending line at the base, and as the arm 112 moves, the pressure guide member 113 presses the flaps 105, 108, 109 to the body of the half-box carton 100A. It is configured to do this.

This makes it easier for the robot hand 12 to support the pressure contact guide member 113 in parallel with the bending line at the base of the flaps 105, 108, 109 of the half-box carton 100A.

In addition, in the box sealing device 10, as the arm 112 moves, the pressure member 114 presses the flaps 105, 108, 109 to the body of the half-box carton 100A, so that by simply changing the moving distance of the arm 112, The distance between the pair of pressure contact guide members 113L and 113R can be easily reduced or expanded by adapting the size of the half-box carton 100A, and it can also be easily adapted to a blank sheet of any size.

(3) Conventionally, in the sealing process, an air cylinder was used as the drive source, and an XY table or etc., equipment mechanisms that mainly operated in a straight line were used.

Therefore, there were problems in that the mechanism was complicated, and the mechanical equipment was crowded around the conveyance path of the production line, resulting in poor visibility and poor workability during equipment maintenance. In addition, equipment replacement is required to replace process equipment to accommodate changes such as carton size changes and model changes (model changes), and equipment adjustments are required to change the size of process equipment, which increases the workload and increases productivity. There was a problem with low efficiency.

On the other hand, in the above-described box sealing device 10, the pressure contact member 114 allows the plurality of protrusions 114a to independently deform the outer surface of the flap of the half-box carton by the reaction force of the elastic member 114c, each of which can be deformed independently. By adopting the pressing configuration, even if the ridgeline portion of the half-box carton is hard, the load applied to the drive source can be limited to within the range of the force that urges the elastic member 114c.

This makes it possible to use, for example, a robot arm driven by a servo motor or the like as a drive source for the sealing process. By adopting a robot arm, we can avoid the crowding of mechanical equipment on the production line, simplify the equipment, improve work efficiency during equipment maintenance, and eliminate the need to replace or adjust process equipment when changing models, which was previously necessary. can be reduced and production efficiency improved.

≪Modification example≫
Although the sealing device according to the embodiment has been described, the present disclosure is not limited to the above embodiment except for its essential characteristic components. For example, a form obtained by making various modifications to the embodiments that a person skilled in the art would think of, or a form realized by arbitrarily combining the constituent elements and functions of each embodiment without departing from the spirit of the present invention. are also included in this disclosure. A modified example will be described below as an example of such a form.

In the box sealing device 10 according to the above embodiment, the two arms 112 are suspended from the frame 111 so as to face the front wall surface 102, the right side wall, and the left side wall of the half-box carton 100A. The number and position of 112 are not limited to the above. The same applies to the number and position of the pressure contact guide members 113 on the front wall surface 102, right side wall, and left side wall of the half-box carton 100A, and the number and position of the pressure contact members 114 on the pressure contact guide member 113. The configurations of the arm 112, the pressure guide member 113, and the pressure member 114 can be changed as appropriate depending on the shape and size of the half-box carton 100A to be sealed.

Furthermore, in the box sealing device 10 according to the embodiment described above, the work head 11 is provided with two sets of an arm 112, a pressure contact guide member 113, and a pressure contact member 114 that can simultaneously seal two half-box cartons 100A. The structure is as follows.

However, for example, the work head 11 may be provided with a plurality of sets of the arm 112, the pressure guide member 113, and the pressure member 114 so that a plurality of half-box cartons 100A can be sealed at the same time.

≪Supplement≫
All of the embodiments described above are preferred specific examples of the present invention. The numerical values, shapes, materials, components, arrangement positions and connection forms of the components, steps, order of steps, etc. shown in the embodiments are merely examples, and do not limit the present invention. Further, among the constituent elements in the embodiments, those not described in the independent claims representing the most important concept of the present invention will be explained as arbitrary constituent elements constituting a more preferable embodiment.

Further, the order in which the above method is executed is merely an example for specifically explaining the present invention, and an order other than the above may be used. Further, some of the above methods may be executed simultaneously (in parallel) with other methods.

Further, in order to facilitate understanding of the invention, the scales of the constituent elements in each of the figures mentioned in each of the above embodiments may differ from the actual scale. Further, the present invention is not limited to the description of each embodiment described above, and can be modified as appropriate without departing from the gist of the present invention.

Furthermore, at least some of the functions of the embodiments and their modifications may be combined.

The box sealing device according to one aspect of the present disclosure can be used as a box sealing device for sealing packaging boxes for products, parts, workpieces, packages, various containers, etc. in a manufacturing line or the like. Further, it can be suitably used as a box sealing device for sealing luggage and packaged items in various logistics and the like.

1 Box sealing unit 10 Box sealing device 11 Work head 111 Frame 112 Arm 113 Pressure contact guide member 114 Pressure contact member 115 Lid closing guide member 116 Lid holding member 12 Robot hand 13 Robot arm 14 Robot main body base IC Carrying conveyor OC Carrying out conveyor 100 Blank Sheet 100x Sheet stack 100A Half box carton 100B Carton

Claims (3)

A box sealing device for sealing a half-box carton formed from a blank sheet,
an elongated press-contact guide member supported parallel to a bending line at the base of the flap of the half-box carton;
a plurality of pressure welds distributed in the longitudinal direction of the pressure welding guide member, each of which has a protruding height from the pressure welding guide member that can be independently changed, and each of which has an independently deformable elastic member; and a member;
The protrusions of the plurality of pressing members independently press the outer surfaces of the flaps of the half-box carton, thereby crimping the flaps to the body of the half-box carton and sealing the half-box carton. Box device. A plurality of holes are formed in the pressure contact guide member at predetermined intervals in the longitudinal direction,
The pressure contact member is a pin that is removably inserted into the hole,
The elastic member is a coil spring that can be deformed in the direction of insertion and removal of the pin,
The box sealing device according to claim 1, wherein the pin presses the flap by a reaction force of the coil spring. an arm that supports the pressure contact guide member;
a robot hand that supports the arm;
As the robot hand moves, the pressure contact guide member is supported parallel to a bending line at the base of the flap of the half-box carton,
The box sealing device according to claim 1 or 2, wherein the pressing member presses the flap onto the body of the half-box carton as the arm moves.