JP2001171004A - Laminater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To previously prevent the winding of a laminated film onto a heat roll caused by an improper marginal interval between the feed tip of the film and the fringe part of an object to be wrapped. SOLUTION: A pair of heat rolls 3, 3 for heat-bonding the transparent or light-transmitting laminated film F to the surface of the object W inserted into the inside of the film F is provided. An optical sensor 7 for detecting the object W is set on the feed side BW of the object W. A means 8 for detecting the introduction of the feed tip Fa of the film F, with a position at a prescribed distance from the detection position 70 of the sensor 7 made a detection position 80, is installed between the sensor 7 and the roll 3. The introduction of the feed tip Fa is detected by the detection means 8, and an alarming means for generating a prescribed alarm when the object W is not detected by the sensor 7 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-bonding of a laminated or transparent film to a surface of an object to be packaged which is sandwiched inside the laminated film or the like. The present invention relates to improvement of a laminator for laminating.

[0002]

2. Description of the Related Art An article to be packaged, which is provided with a heat roll and sandwiched inside a transparent or translucent laminated film, is fed into the heat roll, and the surface of the article to be packaged is heated. 2. Description of the Related Art A laminator for bonding and laminating an article to be packaged in an externally visible manner is widely used.

In this type of laminator, generally,
Two transparent or translucent laminated films having one end joined, or a transparent or translucent laminated film folded in two are used, and the packaged object is placed inside these laminated films. After being sandwiched, the bonded article or the folded side of the laminate film is fed to the hot roll as the feeding tip side.

[0004]

In this type of laminator, if the object to be packaged is not properly inserted into the laminate film, the material to be packaged is sent to the heat roll. In some cases, the laminate film may be wound around a heat roll and cause clogging in which the packaged material is not sent out from the heat roll.

[0005] That is, in the state where the margin interval formed between the leading end of the laminated film and the edge of the packaged object sandwiched between the laminated films on the leading end side of the laminated film is relatively large, When an object to be packaged is sandwiched between the laminate films, (FIG. 1
0) "Koshi" is applied to the laminated film at this margin interval.
Since there is no, the portion of the laminated film at the space between the blanks strongly adheres to the heat roll side with the heating of the heat roll, and the adhesion of the portion triggers the laminated film together with the package. Was sometimes wrapped around. (FIG. 11)

Therefore, the present invention (the inventions of claims 1 and 3) has a problem in that the margin interval formed between the leading end of the laminating film fed to the heat roll and the edge of the article to be packaged is inappropriate. The main purpose is to give a warning to the user when the width is large, and to prevent the laminate film from being wound around the heat roll due to the inappropriate space between the margins. One.

Further, according to the present invention (claims 2 and 3)
According to the invention described in the above), the article to be packaged is fed to the heat roll when the margin interval formed between the leading edge of the laminate film fed to the heat roll and the edge of the article to be packaged is inappropriate. One of the main objectives is to prevent the laminate film from being wound around the heat roll due to the improper width of the margin interval.

The present invention (the invention according to claim 3)
If it is necessary to remove the laminated film wrapped around the heat roll or clean the heat roll,
Another object of the present invention is to make it possible to easily perform such removal and cleaning on the delivery side of the package in the heat roll.

[0009]

In order to achieve the above object, according to the first aspect of the present invention, the laminator has the following configurations (1) to (4). (1) A packaged object sandwiched between two transparent or light-transmitting laminated films joined at one end or inside a folded or transparent or light-transmitting laminated film. A laminator comprising a pair of heat rolls for heating and bonding the laminate film with the feeding with the joining side or the folded side of the laminate film as the feeding tip side,
(2) An optical sensor for detecting the presence of the package sandwiched between the laminate films is provided on the side of feeding the package to the pair of heat rolls,
(3) Between the optical sensor and the pair of heat rolls, there is provided a means for detecting the introduction of the leading end of the laminate film, the detection position being a position at a predetermined distance from the detection position of the optical sensor. (4) warning generation means for generating a predetermined warning when the introduction of the feeding end of the laminate film is detected by the introduction detection means and the presence of the article to be packaged is not detected by the optical sensor. ing.

[0010] With this configuration, when the packaged object sandwiched between the laminate films is fed to the pair of heat rolls, at the position where the leading end of the laminate film is detected by the introduction detecting means,
The margin interval between the feeding tip and the edge of the packaged object sandwiched by the laminate film on the sending tip side is an interval within the interval between the detection position of the introduction detection unit and the detection position of the optical sensor. Or an interval longer than the interval between the two detection positions can be detected.

When the margin interval is relatively large, that is, when the interval between the two detection positions is wider than the interval between the two detection positions, the margin interval applied to the operator by the warning utterance means is inappropriate. This fact is notified before the laminate film enters between the pair of heat rolls, so that winding of the laminate film around the heat roll due to such an inappropriate margin interval can be prevented.

Further, in the invention according to claim 2, the laminator has the following configuration (1) to (4). (1) A packaged object sandwiched between two transparent or light-transmitting laminated films joined at one end or inside a folded or transparent or light-transmitting laminated film. A laminator comprising a pair of heat rolls for heating and bonding the laminate film with the feeding with the joining side or the folded side of the laminate film as the feeding tip side,
(2) An optical sensor for detecting the presence of the package sandwiched between the laminate films is provided on the side of feeding the package to the pair of heat rolls,
(3) Between the optical sensor and the pair of heat rolls, there is provided a means for detecting the introduction of the leading end of the laminate film, the detection position being a position at a predetermined distance from the detection position of the optical sensor. (4) when the introduction of the feeding end of the laminate film is detected by the introduction detection means and the presence of the article to be packaged is not detected by the optical sensor, The configuration is such that the pair of heat rolls is reversely controlled so as to prevent the packaged object from entering between the pair of heat rolls.

According to this configuration, when the packaged object sandwiched between the laminate films is sent to the pair of heat rolls, at the position where the leading end of the laminate film is detected by the introduction detecting means,
The margin interval between the feeding tip and the edge of the packaged object sandwiched by the laminate film on the sending tip side is an interval within the interval between the detection position of the introduction detection unit and the detection position of the optical sensor. Or an interval longer than the interval between the two detection positions can be detected.

When the margin interval is relatively large, that is, when it is formed wider than the interval between the two detection positions, the rotation of the pair of heat rolls is stopped, or the pair of heat rolls is stopped. By reversing the pair of heat rolls in a direction that does not allow the packaged object to enter between them, it is possible to prevent the laminate film from being wound around the heat roll due to the inappropriate margin interval.

In the invention according to claim 3, the laminator according to claim 1 or 2 further has the following configuration (1) to (5). (1) A main body having at least an upper part opened to accommodate a pair of heat rolls, and a lid body removably covering the open part of the main body, and (2) provided along the transport direction of the packaged object. A pair of upper and lower guide plates are provided between the pair of side walls so as to open a guide gap for the package sent out from the pair of heat rolls, and (3) the cover in the pair of guide plates is provided. The side edges in the transport direction of the package and the side wall are fitted to each other, and the upward movement of the guide plate releases the fit and allows the guide plate to be removed upward. (4) The side wall is provided with a positioning means for positioning the guide plate, the positioning means being provided between the pair of side walls so as to fit the projection into the recess. Side A support portion for the inner plate is formed, and (5) the lid is pressed against the upper surface of an upper guide plate which is inserted from above between the pair of side walls when the lid is attached to the main body. A contact portion to be applied is formed.

According to this configuration, the pair of guide plates are moved upward by the concave portions and the projecting portions so that the pair of guide plates can be removed and positioned so as not to cause a lateral displacement between the pair of side walls. The lower guide plate can be supported by the support portion, and the upper guide plate is secured with the guide gap secured between the lower guide plate and the lower guide plate thus supported. It can be supported on a lower guide plate. Further, it is possible to prevent the upper plate from moving upward in a state where the lid is attached so as to close the opening by the contact portion of the lid, whereby the two guide plates can be moved in this state. It can be positioned so as not to cause displacement in the vertical direction.

Further, by removing the lid, the upper guide plate can be removed upward from the pair of side walls without any trouble, and then the lower guide plate can be removed without trouble. Accordingly, it is possible to easily remove the laminate film wound around the pair of heat rolls on the delivery side, clean the heat rolls, and the like.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a typical embodiment of the present invention will be described with reference to FIGS.

FIG. 1 shows the laminator according to the present embodiment in a state where the optical sensor 7 and the introduction detecting means 8 are viewed from the side so that the positional relationship between the optical sensor 7 and the introduction detecting means 8 with respect to the heat roll 3 can be easily understood. 2 and FIG.
Shows these as viewed from above.

FIG. 3 shows that the margin interval S formed between the leading end Fa of the laminated film F and the edge Wa of the packaged object W is determined by the detection position 80 of the introduction detecting means 8 and the detection of the optical sensor 7. In the case where the distance between the position and the position 70 is narrower,
FIG. 4 is a side view showing the case where the blank space S is wider than the space between the detection positions 70 and 80.

FIG. 5 shows a state in which the opening 10 of the main body 1 is closed by the lid 2, and FIG. 6 shows a state in which the lid 2 is removed and a state in which the laminator is viewed from the side. FIG.

FIGS. 7 and 8 show a state in which the pair of guide plates 6, 6 provided on the delivery side FW of the packaged object W with respect to the heat roll 3 are removed, and the heat roll 3 and the heat roll 3 are supported. The side wall 4 and the pair of guide plates 6 and 6 are shown in a perspective view, respectively, and FIG. 9 shows the pair of guide plates 6 and 6.
Shows a state in which is attached.

The laminator according to this embodiment is provided inside two transparent or translucent laminated films F joined at one end, or a folded transparent or translucent laminated film F. The laminated film F is heated and adhered to the surface of the packaged product W sandwiched inside the F with the feeding side of the bonded or folded side of the laminated film F as the leading end Fa side. It is used for the purpose of laminating the package W.

That is, the laminator according to this embodiment is arranged so that the rotation axes are substantially parallel, and the laminating film F fed from one side is provided.
And a pair of heat rolls 3 and 3 which are driven to rotate so as to send out the packaged object W sandwiched between them. Then, in the process of sending the packaged object W to the pair of heat rolls 3, 3 and sending it out of the pair of heat rolls 3, 3, a desired heating and pressing force are applied to the laminate film F. The laminated film F is adhered to the surface of the package W, and the package W is laminated. (Hereinafter, the side on which the packaged object W is sent to the pair of heat rolls 3, 3 is referred to as a sending side B.
W and a side on which the packaged object W is sent out from the pair of heat rolls 3 and 3 is referred to as a sending side FW. )

Typically, as the packaged object W, various cards and papers such as postcards, photographs, price cards, tickets, and the like, or various thinly formed articles such as pressed flowers are planned. Things.

The laminate film F is typically a two-piece plastic film having one end joined together, and a transparent or translucent plastic film having a heat-adhesive layer on opposite sides. And
A transparent or translucent plastic film having a heated adhesive layer on the inside folded in two is used. Such a heated adhesive layer is formed, for example, by applying a hot melt adhesive to such a plastic film.

As the pair of heat rolls 3, 3, typically, there is a heat roll 3 whose outer periphery is covered with silicon rubber or the like and which is heated by a rod-shaped heater inserted therein. Used. In this embodiment, one end of each of the pair of heat rolls 3, 3 rotates on one of a pair of side walls 4, 4 provided at intervals along the transport direction of the packaged object W. Supported as possible, and
The other end of the pair of side walls 4 is rotatably supported at the other end. The rotation axis of one heat roll 3 and the rotation axis of the other heat roll 3 are substantially parallel to each other, and the other heat roll 3 is located immediately below one heat roll 3.
Are arranged such that the pair of heat rolls 3 are positioned. A gear 3 provided at one end of the other heat roll 3 is provided at one end of the pair of heat rolls 3.
0 is provided, and the feeding side B
The one heat roll 3 is rotationally driven so that the other heat roll 3 is rotationally driven in the opposite direction so that the packaged object W sent from W is sent out from the sending-out side FW.

Further, a guide gap 50 for guiding the packaged object W toward a location where the pair of heat rolls 3 and 3 face each other is opened in the side BW where the pair of heat rolls 3 and 3 is fed to the pair of heat rolls 3 and 3. A pair of upper and lower guide plates 5, 5 are provided, and a packaged product sent out from the pair of heat rolls 3, 3 is provided on the delivery side FW from the pair of heat rolls 3, 3. A pair of upper and lower guide plates 6, 6 arranged with a W guide gap 60 is provided. A pair of upper and lower guide plates 5, 5, 6, and 6 on either side have their plate surfaces arranged sideways, and one surface thereof faces one surface of the pair of guide plates 5, 6, and this pair of guides is provided. The guide gaps 50 and 60 are formed between the facing surfaces of the plates 5 and 6.

Further, in this embodiment, the pair of heat rolls 3, 3, the pair of guide plates 5, 5, of the feed side BW, and the pair of guide plates 6, 6, of the feed side FW, It is housed in the main body 1 whose upper part is opened. More specifically, in the present embodiment, the opening 10 of the main body 1 is moved from a position immediately above the pair of guide plates 6, 6 of the feed side FW housed in the main body 1 to the feed side. It is formed over the side of the main body 1 in the FW. The opening 10 of the main body 1
Is closed by a lid 2 detachably attached to the main body 1. In this embodiment, the lower edge 20 of the lid 2 is formed with a hooking portion 21 that is hooked from the inside to the open edge 11 on the side of the main body 1. A hooking tongue piece 23 which is inserted into the inside of the top plate 12 of the main body 1 while elastically deforming the lid 2 is formed at an edge of the top plate 22 formed in the horizontal direction on the feeding side BW. I have. Then, the engaging portion 21 of the lid 2 is hooked on the open edge 11 on the side of the main body 1, and the engaging tongue 23 is inserted into the top plate 12 on the open portion 10 side of the main body 1. In this state, the open portion 10 is
In this state, the engaging tongue 23 is pulled out from the inside of the top plate 12 of the main body 1 so that the lid 2
Is elastically deformed to extract the engaging tongue piece 23, thereby removing the lid 2 from the opening 10 and opening the opening 10. The provision of the required elastic deformation characteristics to the lid 2 can be ensured, for example, by forming the lid 2 from a plastic material. Further, in this embodiment, an introduction slit 13 is formed in the feed side BW in the guide gap 50 between the pair of guide plates 5 and 5 in the feed side BW so that the article W can be introduced from the outside. And the packaged object W delivered to the cover 2 through the guide gap 60 between the pair of guide plates 6 on the delivery side FW.
Is formed to send out to the outside.

The laminator according to the present embodiment comprises a front end Fa of the laminate film F and a package W sandwiched between the laminate film F.
Is relatively large between the edge Wa on the side of the feeding front end Fa and the margin space S is formed,
With the feeding of the packaged object W sandwiched between the pair of heat rolls 3, 3, the laminate film F is wound around the heat roll 3, and the packaged package W is wound from the delivery side FW. A configuration is provided to prevent an operation failure in which the object W is not sent out in advance.

That is, in this embodiment, the presence of the package W sandwiched between the laminated films F is on the side BW on which the package W is fed to the pair of heat rolls 3 and 3. And a pair of heat rolls 3 between the optical sensor 7 and the detection position 70 of the optical sensor 7 at a predetermined interval. There is provided an introduction detecting means 8 for feeding the front end Fa of the laminated film F on which the reference numeral 80 is disposed.

In this embodiment, the optical sensor 7 moves from the pair of heat rolls 3, 3 formed on the pair of guide plates 5, 5 on the feed side BW to the introduction slit side. A light emitter 71 disposed outside one of the pair of guide plates so as to emit light through the notch 51 cut out toward the light receiving portion. A light emitted from the light emitter 71 through the notch 51 is received. And a light receiver 72 disposed outside the other of the pair of guide plates.

Further, in this embodiment, the introduction detecting means 8 adjusts the switch body so that the switch plate 82 protrudes into the notch 51 by using one of the pair of guide plates 5, 5. It is configured as a microswitch 81 disposed outside. The switch plate 82 of the microswitch 81 is connected to the introduction slit 1.
The switch plate 82 is formed so as to be inclined upward from the side 3 toward the heat roll 3 so as to gradually rise upward, and the switch plate 82 is maintained in the inclined state by urging means (not shown). Also, this switch plate 82
In this inclined state, the micro switch 81 is opened and the switch plate 82 is tilted substantially horizontally against the urging of the urging means, whereby the micro switch 81 is closed. .

In this embodiment, when the packaged object W sandwiched between the laminate films F is introduced into the space between the pair of guide plates 5 on the feed side BW, a predetermined The switch plate 82 is tilted down by the feeding front end Fa of the laminated film F against the urging of the urging means, and the microswitch 81 is closed, whereby the feeding of the laminated film F is performed. The configuration is such that the introduction of the tip Fa can be electrically detected. Further, the microswitch 81 is arranged so that the tip side of the switch plate 82 of the microswitch 81 is located closer to the heat roll 3 than the installation position of the optical sensor 7. A predetermined interval is formed between the detection position 70 for detecting the presence of the packaged object W and the detection position 80 of the leading end Fa of the lamination film F by the microswitch 81.

As a result, according to this embodiment, with the introduction of the packaged object W sandwiched between the laminate films F into the space between the pair of guide plates 5 on the feed side BW, In a position where the leading end Fa of the laminated film F closes the micro switch 81, the leading end Fa and the leading end F
The margin interval S between the edge Wa of the packaged object W sandwiched between the laminate films F on the side a is within the interval between the detection position 80 of the microswitch 81 and the detection position 70 of the optical sensor 7. It is possible to electrically detect whether or not there is an interval equal to or greater than the interval between the two detection positions 70 and 80. That is, when the micro switch 81 is closed, the light receiver 72 of the optical sensor 7 is turned on by the light emitting device 7 through the transparent or translucent laminate film F.
When the light from the light source 1 is received, the blank space S is wider than the space between the two detection positions 70 and 80 (FIG. 4). When the light is not received, the light is blocked by the packaged object W, so that the blank space S is smaller than the space between the detection positions 70 and 80. (Fig. 3)
The interval between the two detection positions 70 and 80 is such that if the margin interval S is 5 mm or more, the laminate film F is likely to be wound around the heat roll 3 due to the margin interval S. In general, it is preferable to set the thickness to 5 mm or less, although it varies depending on the thickness and material of F.

In this embodiment, the laminate film F is controlled by the microswitch 81.
And a warning generating means (not shown) for generating a predetermined warning when the introduction of the feeding tip Fa is detected and the presence of the packaged object W is not detected by the optical sensor 7. .

Accordingly, when the margin interval S is relatively large, that is, when it is formed wider than the interval between the two detection positions 70 and 80, the margin interval S applied to the operator is set.
Before the laminate film F enters the space between the pair of heat rolls 3, and informs the heat roll 3 of the laminate film F of the laminate film F caused by such an inappropriate margin interval S. Can be prevented beforehand.

The warning generating means generates an electric signal when the introduction of the leading end Fa of the laminated film F is detected by the microswitch 81 and the presence of the article W is not detected by the optical sensor 7. A warning lamp that emits light based on the electric signal, a warning buzzer that sounds based on the electric signal, and the like can be provided in the main body 1 that forms the laminator.

Instead of the warning generating means, or in addition to the warning generating means, the introduction detecting means 8 detects the introduction of the leading end Fa of the laminate film F, and the optical sensor 7 When the presence of the object W is not detected, the rotation stop control of the pair of heat rolls 3, 3 or the direction in which the pair of heat rolls 3, 3 do not allow the packaged object to enter between the pair of heat rolls 3, 3 ( The reverse rotation control may be performed in a direction opposite to the direction of the arrow shown in FIG.

According to such a configuration, when the blank space S is relatively large, that is, when the space between the two detection positions 70 and 80 is formed wider than the space between the two detection positions 70 and 80, the rotation of the pair of heat rolls 3 and 3 is restricted. Stopping or reversing the pair of heat rolls 3, 3 in a direction that does not allow the packaged object W to enter between the pair of heat rolls 3, 3, the laminate caused by such an inappropriate margin interval S The winding of the film F around the heat roll 3 can be prevented.

A detecting means such as an optical sensor (not shown) or a microswitch (not shown) for detecting the presence of the article W to be packaged is separately provided on the delivery side of the pair of heat rolls 3 and 3. When the presence of the object W is detected, the microswitch 81 constituting the introduction detecting means 8 is closed by the laminate film F, and the packaged object W is detected by the optical sensor 7.
Even when the presence of the heat rolls 3 is not detected, the control is performed so that the warning is not generated by the warning generation means or the stop or the reverse rotation control of the pair of heat rolls 3 is performed.

As a result, although the article to be packaged W has passed the detection position 70 of the optical sensor 7, the detection position 8 of the introduction detection means 8 constituted by the microswitch 81.
The warning is not generated or the rotation of the heat roll 3 is not stopped immediately before the feeding of the packaged object W to the pair of heat rolls 3 and 3 through which the laminate film F has not passed through 0. be able to.

Also, in this embodiment, the case where the laminate film F is wound around the pair of heat rolls 3 and 3 or the case where the pair of heat rolls 3 and 3 need to be cleaned. In such a case as described above, a structure is provided in which the laminate film F is removed from the heat roll 3 on the delivery side FW or the heat roll 3 is easily cleaned.

That is, in this embodiment, an opening 1 is provided on the upper part of the main body 1 on the sending-out side FW.
0 is formed, and the opening 10 is detachably covered by the lid 2. Then, the pair of upper and lower guide plates 6, 6 on the delivery side FW disposed between the pair of side walls 4, 4 provided along the transport direction of the packaged object W, respectively, 2 can be pulled out upward from the opening 10 of the main body 1 in a state where the laminate film F is wound around the heat roll 3 at the delivery side FW.
Can be removed without obstruction.

Specifically, first, the side edges of the pair of guide plates 6, 6 in the conveying direction of the packaged object W and the side wall 4 are fitted with each other, and By moving the guide plate 6 upward, the guide plate 6 includes a concave portion 61 and a protrusion 40 that allow the engagement to be released and allow the guide plate 6 to be removed upward.
Is provided. In this embodiment, the positioning means comprises the pair of side walls 4, 4
And a rib-shaped protrusion 40 extending in the vertical direction provided on each of the pair of guide plates 6, 6.
And a concave portion 61 formed at a side edge portion along the carrying direction of the sheet. And in this embodiment,
Each of the pair of guide plates 6 and 6 accommodates the protrusion 40 provided on the one side wall 4 in the recess 61 provided on one side edge thereof, and the recess 61 provided on the other side edge. The projection 40 provided on the other side wall 4 is accommodated therein, and is positioned between the pair of side walls 4, 4. The guide plate 6 is moved upward along the projection 40 so that the There is a configuration that can be removed.

Second, the recesses 6 are formed on the side walls 4.
The lower guide plate 6 inserted from above into the space between the pair of side walls 4 so as to fit the protrusion 40 into
Are formed. In this embodiment, the supporting portion 41 is provided on each of the pair of side walls 4, 4 by attaching the lower guide plate 6 to the recess 61.
The protrusion 40 is inserted from the upper side so as to be accommodated therein so as to be configured as a laterally long rib-like body which is abutted from below on a side edge portion of the lower guide plate 6 along the transport direction. I have.

Third, the lid 2 is attached to the pair of side walls 4, 4 when the lid 2 is attached to the main body 1.
A contact portion 25 is formed to be pressed against the upper surface of the upper guide plate 6 inserted between the upper guide plate 6 and the upper guide plate 6. In this embodiment, the contact portion 25 projects downward from the inner surface of the top plate of the lid 2, and the lid 2 is attached so as to close the opening 10 of the main body 1. The upper guide plate 6 is configured as a rod-shaped body whose tip is pressed against the upper guide plate 6.

In this embodiment, the lower surface of the upper guide plate 6 is provided with the lower surface at both side edges where the concave portion 61 is provided, and the concave portion 61 of the lower guide plate 6 is provided. The two guide plates 6 are inserted into the pair of side walls 4 and 4 from above in such a manner as to be superimposed on the upper surfaces of both side edges, and the leading ends of the two guide plates 6 are brought into contact with the surface of the other guide plate 6. A projection 62 is formed between the plates 6 to form the guide gap 60.

As a result, in the present embodiment, the pair of side walls 4 can be detached by moving the pair of guide plates 6, 6 upward by the recess 61 and the projection 40. , 4 can be positioned so as not to cause a lateral displacement between the lower guide plate 6 and the lower guide plate 6 supported by the support portion 41. The upper guide plate 6 can be supported on the lower guide plate 6 by the projections 62 with the guide gap 60 secured therebetween. In addition, the upper plate can be prevented from moving upward in a state where the lid 2 is attached so as to close the opening 10 by the contact portion 25 of the lid 2. Both guide plates 6 can be positioned so as not to cause a deviation in the vertical direction.

Also, by removing the lid 2,
The upper guide plate 6 can be removed upward from the pair of side walls 4 without any trouble, and then the lower guide plate 6 can be removed upward without any trouble.

In this embodiment, the packaged object W sent from the pair of heat rolls 3, 3 is easily inserted between the guide gaps 60 of the pair of guide plates 6, 6. The edge of the pair of guide plates 6, 6 on the side facing the heat roll 3 is provided with an inclined portion 63 that is inclined in a direction to move away from the other guide plate 6 as approaching the heat roll 3. It is composed. For this reason, even after the guide plate 6 is removed from between the pair of side walls 4 and 4 and is then stored between the pair of side walls 4 and 4 again, the inclined portion 63 is always directed toward the heat roll 3. As described above, the protrusion 40 is provided on one of the pair of side walls 4, 3.
The guide plate 6 located on the one side wall 4 side is provided with the concave portions 61 at three places, and the other of the pair of side walls 4 and 4 is provided with the two protrusions 40 at two positions. And the other side wall 4 corresponding to the projection 40.
The guide plate 6 is provided with two concave portions 61, and the inclined portion 63 is formed in one of the three projecting portions 40 when the inclined portion 63 is directed to the side opposite to the side of the heat roll 3. The side ends of the guide plate 6 on the side where the concave portions 61 are provided abut against each other so that both the pair of guide plates 6 cannot be inserted between the pair of side walls 4 in this direction. .

Further, in this embodiment, the upper surface of both side edges of the upper guide plate 6 along the conveying direction of the packaged object W and the packaged object on the lower guide plate 6 Protrusions 64 are formed on the lower surfaces of both side edges along the transport direction of W, and are formed long in the direction along the transport direction and protrude in a direction substantially orthogonal to the surface of the guide plate 6. , The upper guide plate 6 with the inclined portion 63 facing the heat roller.
Is inserted between the pair of side walls 4, 4, the upper protruding piece 64 and the lower protruding piece 64 abut against each other, and the pair of guide plates 6 are engaged by the two protruding pieces 64 abutting in this manner. , 6 are formed with an interval wider than the guide gap 60 formed by the projection 62.

As a result, in this embodiment, if the upper guide plate 6 is erroneously inserted first between the pair of side walls 4, 4, the space formed by the projecting pieces 64 is used. As a result, the lid 2 is positioned above the regular position 26 by the contact portion 25 which presses the tip against the plate surface of the lower plate which is erroneously positioned above, so that the engaging portion 21 and the engaging tongue 23 Cannot be hooked on the main body 1 side, so that the operator can be informed that the pair of guide plates 6, 6 are not correctly placed between the pair of side walls 4, 4.

From the viewpoint of making the removal work of the pair of guide plates 6 and 6 on the delivery side FW safe, the laminator is removed by removing the lid 2 from the opening 10 of the main body 1. The switches constituting the circuits are opened with the removal of the lid 2 so that the circuits for the heaters for heating the pair of heat rolls 3 and the motor for driving the heat rolls 3 are opened. It is preferable to keep it.

[0055]

According to the laminator according to the present invention,
A warning can be given to the user when the margin formed between the leading edge of the laminated film to the heat roll and the edge of the package is inappropriately large, or It is possible to prevent the packaged object from being sent in, and it is possible to prevent the laminate film from being wound around the heat roll due to the inappropriate space between the margins.

[Brief description of the drawings]

FIG. 1 is a cross-sectional configuration diagram showing a main part configuration of a laminator viewed from a side.

FIG. 2 is a configuration diagram showing a main part configuration of a laminator viewed from above.

FIG. 3 is a configuration diagram showing a main part configuration of a laminator viewed from a side.

FIG. 4 is a configuration diagram showing a main part configuration of a laminator viewed from a side.

FIG. 5 is a cross-sectional configuration diagram of a laminator.

FIG. 6 is a sectional configuration diagram of a laminator.

FIG. 7 is an exploded perspective view of a main part of a laminator.

8 is an exploded perspective view of a main part of the laminator viewed from a direction different from that of FIG. 7;

FIG. 9 is a perspective configuration diagram of a main part of a laminator.

FIG. 10 is a configuration diagram showing a conventional example.

FIG. 11 is a configuration diagram showing a conventional example.

[Explanation of symbols]

 F Laminated film Fa Feeding tip W Packaged object 3 Heat roll 7 Optical sensor 70 Detection position 8 Introducing detection means 80 Detection position

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4F100 AK01A AK01B BA02 CB03 DA02 DB02 DB06 DB07 EC032 EJ192 EJ422 EK06 EK13 EK15 GB17 JL00 JN01A JN01B 4F211 AC03 AD05 AD08 AG01 AG03 AP06 AP07 AQ01 SA07 SP07 SP48

Claims (3)

[Claims] 1. A cover sandwiched between two transparent or light-transmitting laminated films joined at one end or inside a two-folded transparent or light-transmitting laminated film. A laminator including a pair of heat rolls for heating and bonding the laminate film with the feeding of the bonding side or the folded side of the laminate film as the leading end side on the surface of the package. On the sending side of the article to be packaged,
An optical sensor for detecting the presence of the packaged object sandwiched between the laminated films is provided, and a predetermined sensor is provided between the optical sensor and a pair of heat rolls and a detection position of the optical sensor. There is provided means for detecting the introduction of the leading end of the laminate film, the detection position being a position at a distance, the introduction of the leading end of the laminate film is detected by the introduction detecting means, and the optical sensor is used for packaging. A laminator comprising a warning generating means for generating a predetermined warning when the presence of an object is not detected. 2. A cover sandwiched between two transparent or light-transmitting laminated films joined at one end, or inside a two-folded transparent or light-transmitting laminated film. A laminator including a pair of heat rolls for heating and bonding the laminate film with the feeding of the bonding side or the folded side of the laminate film as the leading end side on the surface of the package. On the sending side of the article to be packaged,
An optical sensor for detecting the presence of the packaged object sandwiched between the laminated films is provided, and a predetermined sensor is provided between the optical sensor and a pair of heat rolls and a detection position of the optical sensor. There is provided means for detecting the introduction of the leading end of the laminate film, the detection position being a position at a distance, the introduction of the leading end of the laminate film is detected by the introduction detecting means, and the optical sensor is used for packaging. A laminator characterized in that when the presence of an object is not detected, the rotation stop control of the pair of heat rolls or the reverse rotation control of the pair of heat rolls in a direction in which the packaged object does not enter between the pair of heat rolls. 3. A pair of heating rolls, each of which comprises a main body having at least an upper part opened to accommodate a pair of heat rolls, a lid body removably covering the opening part of the main body, and provided along a conveying direction of the packaged object. And a pair of upper and lower guide plates arranged with a guide gap between the pair of heat rolls to be sent out from the pair of heat rolls, and the transfer of the packaged object by the pair of guide plates. The side edges in the direction and the side walls fit into each other,
And a positioning means for the guide plate, comprising a concave portion and a projecting portion that allow the guide plate to be disengaged by being moved upward by the upward movement of the guide plate and allow the guide plate to be removed upward, and the side wall is provided. A lower guide plate supporting portion inserted from above between the pair of side walls so as to fit the projection into the recess, and the lid has the lid 3. The laminator according to claim 1, wherein a contact portion is formed to be pressed against an upper surface of an upper guide plate inserted from above between the pair of side walls when attached to the main body.