JPH08183520A - Labeling machine - Google Patents

Abstract

PURPOSE: To improve operational efficiency by a method wherein, in labeling both side walls of a top open case body, the support arms for supporting the second transfer belts on the upper side which transfer the case body by making close contact with the upper surface of its side wall are so structured as to jump up to provide an open area near labeling location which labeling means confronts. CONSTITUTION: A case body 2 is carried through a labeling location by a pair of left and right first transfer belts 6 and 8 passed around rollers 19 and 20 on a base stand 15. The second transfer belts 5 and 7 oppositely positioned above the transfer belts 6 and 8 transfer the case body 2 by making close contact with the upper surfaces of both the side walls 3 and 4 thereof. The second transfer belts 5 and 7 are supported by a pair of support arms 23 and 24 supported freely rockably on support posts 17 and 18, whereby such belts can be jumped up to provide an open area near the labeling location. At this labeling location, labels are attaches to the side walls of the case body 2 upon each label feed by the labeling means 13 and 14 which are provided confronting the side walls 3 and 4 with a freedom of projection and retraction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label sticking machine for sticking a label for displaying a producer's name or the like on a box made of foamed resin having an open upper surface used for transportation of fresh food. Regarding

[0002]

2. Description of the Related Art In order to transport fresh foods such as vegetables and fish, foamed resin boxes such as expanded polystyrene, which are lightweight and have good heat retention, have been conventionally used. Such a box is often used by stacking a plurality of stages, and the lid is covered if necessary. Therefore, there is a problem that the upper surface is open, and therefore, when a label indicating the place of production, quantity, etc. is attached to the side wall, the side wall is bent and the label cannot be attached well.

As a conventional technique for solving this problem, there is a real fair 6-24332. In this conventional technique, a lower conveyor belt on which a box is mounted and a pair of left and right conveyor belts that oppose the lower conveyor belt and are in close contact with the upper surfaces of both side walls of the box are configured. There is. Therefore, the pair of left and right upper belts are configured to be able to approach and separate from each other according to the width of the box body. In this way, the upper belts are configured to closely support the upper surfaces of the left and right side walls, suppress the bending of the side walls due to the sticking of the labels to the side walls, and allow the labels to be in close contact.

[0004]

In the above-mentioned prior art,
When loading a label on the sticking means due to a problem such as label replacement or winding around a roller, raise the upper belt from the setting position corresponding to the height of the box and work space around the sticking means. Therefore, there is a problem that workability is poor.

Further, since the lower belt is composed of one, if the width of the lower belt is made narrow in order to accommodate a narrow box body, it is possible to use a wide box body. , The lower belt does not exist at a position completely opposite to the upper belt, and the box body is twisted, so that the box body cannot be stably transported, and therefore the width of the box body can be supported. There is also the problem of constraints.

An object of the present invention is to provide a label sticking machine which can improve the workability at the time of loading a label and can widely cope with the width of the box body.

[0007]

According to a first aspect of the present invention, there is provided a label sticking machine for a side wall of a box body having an open upper surface, which is wound around a roller on a base to form the box body. And a first conveyor belt for carrying the sheet so as to pass through a predetermined sticking position, and a first conveyor belt disposed above the box body so as to be in close contact with upper surfaces of both side walls of the box body. A pair of left and right second conveyor belts that convey the box body in synchronization with the first conveyor belt and the second conveyor belt are respectively wound around and swingably supported by a support column installed upright on the base. And at least one of a pair of support arms capable of jumping up so as to open at least the vicinity of the sticking position, and a box body being sandwiched and conveyed by the first and second conveyor belts at the sticking position. Projecting / retracting toward the side wall of Configured to standing, with a label that is wound into a roll for transporting the box feeding, characterized in that it comprises a sticking means Yuku pasted onto the side wall.

In the label sticking machine according to the invention of claim 2, the first conveyor belt is composed of a pair of left and right belts corresponding to the second conveyor belt, and the pair of left and right first conveyor belts are respectively formed. A pair of rollers on the base side to be wound and a pair of support arms on which the pair of left and right second conveyor belts are respectively wound are supported by the base so that they can approach and separate from each other. To do.

Further, in the label sticking machine according to the invention of claim 3, the support arm includes a drive roller provided on the base end side thereof and a driven roller provided on the free end side thereof, and the driven roller is The movable piece is rotatably supported by a movable piece that is displaceable in the extension direction of the support arm, and the movable piece is elastically biased toward the free end side of the support arm by an elastic member. Characterize.

[0010]

According to the invention of claim 1, in a label sticking machine for a side wall of a box made of foamed resin or the like having an open upper surface, in order to convey the box to a predetermined sticking position which the sticking means faces, A first conveyor belt for supporting the bottom of the box,
A pair of left and right second members that support the upper surfaces of both side walls of the box body, respectively.
It is clamped by the conveyor belt. That is, the first conveyor belt on which the box is mounted is wound around the rollers on the base,
The pair of left and right second conveyor belts facing each other can be brought into close contact with and separated from each other according to the width of the box body so that they can be brought into close contact with the upper surfaces of both side walls of the box body. Supported by. Further, at the pasting position, a pasting unit is provided so as to face at least one side wall of the box body, and the pasting unit protrudes to the pasting position at the time of pasting, and is a label wound in a roll shape. Are sequentially attached to the box body, and when the attachment is completed, the robot retracts and retracts. The first and second conveyor belts are driven and driven by a motor or the like, and convey the box body at a constant speed in synchronization with each other.

In the label sticking machine configured as described above, in the present invention, the support arm is swingably supported by a support pillar standing on the base, and at least the vicinity of the sticking position is opened. It is configured to be able to jump up so as to be able to.

Therefore, when a label is loaded due to a problem such as a label exchange or winding of the label around the pressing roller, the height of the support arm set corresponding to the height of the upper surface of the side wall of the box body is set. It is possible to secure a working space for loading the label on the sticking means simply by jumping up the support arm without changing the height,
Workability can be improved.

Preferably, according to the second aspect of the invention, the first conveyor belt is composed of a pair of left and right belts, and correspondingly, a pair of rollers around which the first conveyor belt is wound on the base side. The support arm and the roller on the base side are supported so that they can approach and separate from each other in correspondence with the width of the box.

Therefore, regardless of the width of the box,
The two side walls of the box are always facing the first and second sides, respectively.
It is sandwiched by a conveyor belt and conveyed. As a result, the box body can be stably transported regardless of the width of the box body.

Further preferably, according to the invention of claim 3, a drive arm and a driven roller are provided on a support arm for supporting the second conveyor belt,
The driven roller is rotatably supported on the free end side of the support arm by a moving piece provided so as to be displaceable in the extension direction of the support arm, and is spaced from the drive roller provided on the base end side of the support arm. It is configured to be changeable. The moving piece is elastically biased toward the free end side of the support arm by an elastic member.

Therefore, the second conveyor belt can be supported without slack even when the load of the second conveyor belt fluctuates or the support arm is jumped up.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows a label sticking machine 1 according to an embodiment of the present invention.
FIG. 2 is a front view showing a simplified overall configuration of FIG. 2, and FIG. 2 is a right side view thereof. The labeling machine 1 is made of expanded polystyrene or the like, and has a pair of upper and lower conveyor belts 5 and 6 on the left and right side walls 3 and 4 of a box body 2 having an open upper surface.
Labels 11 that indicate the place of production, quantity, etc. on at least one of the side walls 3 and 4 while being conveyed by being sandwiched between 7 and 8.
Is to be attached. Therefore, at a predetermined sticking position 12 in the transport path constituted by the transport belts 5, 6; 7, 8 facing past the side walls 3, 4, the sticking means 13, 14 to be described later are arranged, respectively. The label 11 is attached by using both or either of these attaching means 13 and 14.

On the base 15, a pair of supporting members 1 which are displaced toward and away from each other according to the amount of rotation of the handle 16.
7, 18 are erected. The support members 17 and 18 are provided with a pair of rollers 19 and 20 around which the conveyor belts 6 and 8 are respectively wound, and not-shown guide members for the conveyor belts 6 and 8, and the like.
The rollers 19 and 20 are rotationally driven by a driving means such as a motor (not shown), and thus the box body 2 mounted on the conveyor belts 6 and 8 is conveyed in the arrow 21 direction.

The supporting members 17 and 18 suspend supporting arms 23 and 24 for supporting the conveyor belts 5 and 7, respectively, and the conveyor belts 5 and 7 support the supporting arm 2.
A pair of rollers 2 respectively attached to 3 and 24
It is wrapped around 5,26. The support arms 23, 2
4 is attached to the support members 17 and 18 such that the conveyor belts 5 and 7 face the conveyor belts 6 and 8 respectively, and the support members 17 and 18 are moved toward and away from each other by the above-mentioned approach and departure displacements. It can be displaced to accommodate the width of the box 2. The support arms 23 and 24 are supported at a height corresponding to the amount of rotation by rotating the handles 27 and 28, respectively, and thus can correspond to the height of the box body 2.

Furthermore, the supporting members 17 and 18 support the sticking means 13 and 14, and when the handles 29 and 30 are rotated, the sticking means 1 has a height corresponding to the rotation amount.
Supports 3 and 14, respectively. In this way, the label 11 can be attached to the desired height on the side walls 3 and 4 of the box body 2. As will be described later, the support arms 23 and 24 have a so-called cantilever structure in which one end 31 side is swingably supported by the support members 17 and 18, and the present invention refers to the other end 32 side. It is characterized in that it is possible to open the vicinity of the pasting position 12 by jumping up as indicated by 33.

An operating section 41 is provided on the front surface of the base 15. The operation unit 41 includes a power lamp 43 that lights up when the power switch in the control panel 42 is turned on, an operation lamp 44 that lights up when the operation switch is turned on, and a label 11 of the sticking means 13 and 14 of the sticking means 13. A remaining amount warning lamp 45 that lights up when the remaining amount decreases, an emergency stop switch 46, a buzzer 47 that gives a voice notification when an abnormality occurs,
A timer 48 for setting the timing of attaching the label 11,
49 and a counter 50 for counting the number of sticking ends, and the like.

The conveyor belts 5, 6; 7, 8 are driven in synchronization with each other by a motor, that is, at a constant speed, and the front end of the box 2 mounted on the conveyor belts 6, 8 is limited. The limit switch 3 is brought into contact with the switch 34.
The timers 48 and 49 set the time from when the No. 4 is turned on to when the pasting means 13 and 14 are activated, respectively. Therefore, the conveyor belts 5, 6; 7,
8, the transport speed of 8, the distance L1 from the front end of the box 2 to the sticking start position of the label 11, and the limit switch 34
By setting the time limit of the timers 48 and 49 to the time corresponding to the distance from the sticking position 12 to the sticking position 12, the label 11 can be stuck at a desired position in the transport direction 21 of the box body 2. .

FIG. 3 is a front view for explaining in detail the support arm 23 for supporting the conveyor belt 5, and FIG. 4 is an exploded perspective view thereof. The support arm 23 is roughly
An attachment piece 51 supported by a support member 17 so as to be movable up and down, an extension piece 52 extending and stretching the conveyance belt 5 to the downstream side in the conveyance direction 21, and an extension piece 52 integrated with the extension piece 52. 52 and a connecting piece 53 for connecting the mounting piece 51.

Guide members 54 and 55 are attached to the attachment piece 51 by screws 56 and 57, respectively. The support shaft 58 of the support member 17 is inserted through the guide member 54, and the guide member 55 is the guide column 5 of the support member 17.
It is straddled over the guide rail 60 attached to 9. Therefore, the guide members 54 and 55 slide on the support shaft 58 and the guide rail 60, respectively, so that the mounting piece 51 can be displaced up and down.

A bracket 61 is fixed to the end of the attachment piece 51 opposite to the extension piece 52 with a screw 62.
A motor 64 is attached to the bracket 61 with a screw 63. Further, at the end of the mounting piece 51,
The bearing member 65 is attached. Pulleys 66 and 67 are attached to the input shaft 65a of the bearing member 65 and the output shaft 64a of the motor 64, respectively. A belt 68 is wound around these pulleys 66 and 67, and therefore the roller 25b attached to the output shaft 65b of the bearing member 65 is rotationally driven by the motor 64. A slip mechanism such as a clutch is provided in the roller 25b during overload.

On the other hand, in the extension piece 52, the attachment piece 5
Long holes 71 to 73 are formed in the end portion on the opposite side to 1 in parallel with the transport direction 21. Screws 74 and 75 are inserted into the guide slots 71 and 72, respectively.
75 is screwed to the moving piece 76 and thus the moving piece 7
6 is mounted on the extension piece 52 so as to be slidably displaced in parallel to the conveying direction 21. The moving piece 76 is formed by the roller 25a.
After the pin 77 having been inserted through the insertion long hole 73 is inserted through the pin hole 76a, the roller 25a is rotatably supported. The tip of the pin 77 has a pin hole 76.
Inside a, it is screwed by a screw 78 to prevent it from coming off.

A tip of a ball screw 80 inserted through an insertion hole 79a of a bracket 79 provided upright on the extension piece 52 is screwed to the moving piece 76. In this ball screw 80, a compression spring 81 is wound around the outer peripheral surface between the moving piece 76 and the bracket 79, and in the vicinity of both ends of the compression spring 81, the moving piece 76 of the ball screw 80 is Nut 82 and bracket 7 for preventing
A nut 83 as a hitting piece for 9 is screwed on. Therefore, due to the elastic force of the compression spring 81,
The moving piece 76, that is, the roller 25a is elastically biased in the arrow 21 direction. As a result, even when the box body 2 is transported and the support arm 23 is jumped up, the tension can be kept constant without causing the slack in the transport belt 5.

A guide plate 84 for adhering the conveyor belt 5 to the box 2 is extended from the bottom surface of the extension piece 52. An end of the guide plate 84 opposite to the extension piece 52 is provided. The belt cover 87 is attached to the attachment piece 85 extended from the portion by a screw 86.

The extension piece 52 is fixed to the connecting piece 53 so as to be integral therewith. The connecting piece 53 has a locking pin 9
1 is erected and the roller 92 is fixed by the pin 92.
Is rotatably supported. Further, the support shaft 96 is attached via the screw 94 and the attachment piece 95. This support shaft 96
Corresponding to, a receiving member 97 is fixed to the mounting piece 51, and by the support shaft 96 and the receiving member 97,
It constitutes a so-called torsion spring.

The extension piece 52 and the connection piece 53 can rotate relative to each other with the support shaft 96 as a rotation axis.
Corresponding to this, a locking arm 99 is attached to the mounting piece 51 with a screw 98.
The locking pin 100 provided on the free end of the connecting piece 5
By selectively fitting into the locking holes 53a and 53b formed in No. 3, the extension piece 52 and the connecting piece 53 are in a horizontal state in which they are aligned with the mounting piece 51, respectively, or as shown by the reference numeral 33. Holds up. In the jumping state, the conveyor belt 5 is locked by the locking pin 91 instead of the roller 93.

FIG. 5 is an exploded perspective view for explaining the structure of the locking pin 100 in detail. This locking pin 10
The reference numeral 0 generally includes a knob 171, a cylindrical body 172, a compression spring 173, a locking piece 174, and a nut 175. The knob 171 held by the operator is
A substantially frustoconical grip portion 171a, a cylindrical connection portion 171b that is continuous with the grip portion 171a, and the connection portion 171.
and a connecting portion 171b of the shaft portion 171c, the shaft portion 171c being connected to the b, and having a diameter smaller than that of the connecting portion 171b.
On the side, a pair of fitting pieces 171d and 171e are formed so as to extend in a direction away from each other on the outer peripheral surface thereof. An inner screw 171f is engraved in the shaft portion 171c.

Correspondingly to this, the cylindrical body 172 is formed with an abutting portion 172a and a diameter smaller than that of the abutting portion 172a.
And a cylindrical portion 172b that can be inserted into the attachment hole 99a of the locking arm 99. The abutment portion 172a is formed with an insertion hole 172c into which the shaft portion 171c of the knob 171 can be inserted, and insertion recesses 172d and 172e into which the insertion pieces 171d and 171e can be inserted. ing. Further, a storage chamber 172f capable of storing the compression spring 173 and the locking piece 174 is formed in the cylindrical portion 172b, and an outer screw 172g is engraved on the outer peripheral surface thereof. After the cylindrical body 172 is inserted into the mounting hole 99a, a nut 175 is screwed into the.

The locking piece 174 has a sharp guide portion 174a formed in a conical shape, a shaft portion 174b, and a connecting portion 17.
4c. An outer screw 174d is engraved on the outer peripheral surface of the connecting portion 174c.

With the shaft portion 171c of the knob 171 in a state where the fitting pieces 171d, 171e and the fitting recesses 172d, 172e are aligned with each other, the insertion hole 172c is inserted therethrough.
2f, the compression spring 173 is fitted so as to wind the outer peripheral edge of the shaft 171c in this state, and then the outer screw 174d of the locking piece 174 is screwed into the inner screw 171f. The locking pin 100 is completed by being worn. Therefore, the compression spring 173 is sandwiched between the step surface 172h between the insertion hole 172c and the storage chamber 172f and the step surface 174e between the shaft portion 174b and the connecting portion 174c.
Therefore, the paired knob 171 and the locking piece 1
74 is elastically biased in the direction of arrow 176.

Therefore, the worker is required to insert the fitting pieces 171d,
171e and the fitting recesses 172d and 172e are aligned with each other, so that the locking piece 174 is fitted into the locking holes 53a and 53a.
b, the knob 171 is pulled up in the direction opposite to the arrow 176, and then the shaft 17
By the angular displacement around the axis of 1c, the locking piece 174
Can be held in a state of being released from the locking holes 53a and 53b. In this way, the support arm 23 can be held in the horizontal state or the jumped state with good workability.

The support arm 24 for supporting the conveyor belt 7 is also constructed in the same manner as the support arm 23 thus constructed.

FIG. 6 is an exploded perspective view for explaining the structure of the sticking means 13, and FIGS. 7 and 8 are the sticking means 1 thereof.
3 is a plan view for explaining the operation of FIG. The sticking means 13 roughly draws the label 11 from a label roll 101 configured by winding the label 11 in a roll shape by guide rollers 102 to 105, and presses the box body by pressing rollers 106 to 108. It is attached to the side wall 3 of 2.

The label roll 101 is loaded on a turntable 113 which is rotatably supported on a base 111 by a shaft 112. In addition, the guide roller 10
2, 103 are rotatably supported on the base 111 by pins 114, 115, respectively. Furthermore, the pressing rollers 106 to 108 are provided with pins 116, respectively.
It is rotatably attached to the swing levers 121 to 123 by ˜118. The rocking lever 121 is also provided with the guide rollers 104 and 105, respectively.
It is rotatably attached by 5.

In the label 11, guide rollers 102, 103, 1 for guiding the inner surface coated with the adhesive.
In No. 05, the outer peripheral surface is roughened to reduce the contact area of the label 11 with the surfaces of the rollers 102, 103 and 105 and prevent wrapping. The pressing rollers 106 to 108 are made of an elastic material such as urethane.

The swing levers 121 to 123 are swingably supported by pins 126 to 128 provided upright on the base 111, respectively. A latching pin 129 is erected on the end of the swing lever 121 opposite to the side on which the pin 116 is erected. The latching pin 129 and the latching erected on the base 111 are erected. An air cylinder 131 is suspended between the pin 130 and the pin 130. Therefore, as the air cylinder 131 retracts, as shown in FIG.
The swing lever 121 swings and displaces in the direction of the arrow 132, whereby the pressing roller 106 projects toward the side wall 3 of the box body 2. On the other hand, when the air cylinder 131 extends, the swing lever 121 moves the arrow 133 as shown in FIG.
The pressure roller 106 retreats and separates from the side wall 3 of the box body 2.

On the base 111, the pressing roller 1
Immediately after the downstream side of the transport direction 21 of 06, the cutter blade 13
4 are arranged. This cutter blade 134 is screw 1
Support member 13 fixed to base 111 by 35
6 is attached by a screw 137. Therefore, the cutter blade 134 is separated from the label 11 in the state where the pressing roller 106 is projected as shown in FIG. 6, and is in the state where the pressing roller 106 is retracted as shown in FIG. The label 11 is cut into contact with the label 11. At this time, the cut end of the label 11 is sandwiched between the guide roller 105 and the pressing roller 106. The pressing roller 106 is formed to have a large diameter of, for example, 50 mm, that is, to have a small curvature, and the end portion of the label 11 cut by this is along the roller 106. Therefore, when the pressing roller 106 is pressed against the side wall 3 again, the label 11 is attached to the side wall 3 and the label 11 is supplied from the label roll 101.

The pressing roller 107 of the swing lever 122
At the end opposite to the side where the
A is bent and formed, and a locking pin 122b is provided upright. Corresponding to this, a rising piece 137 is formed on the base 111 by cutting and raising. Two screw holes 137a and 137b are formed in the rising piece 137, and a screw 138 is screwed into one screw hole 137a by a nut 139 so as not to come off. Further, the screw 140 is screwed into the other screw hole 137b so as not to come off by the nut 141. A locking hole is formed at the tip of the screw 140. The locking hole and the locking pin 1 are
A tension spring 142 is stretched between 22b and 22b.

Therefore, the swing lever 122 has an arrow 143 so that the pressing roller 107 projects toward the side wall 3 side.
Will be biased in the direction. Further, the bias force can be adjusted by the amount of protrusion of the screw 140 from the rising piece 137. Therefore, the pressing roller 107 can be pressed against the side wall 3 by the elastic force of the tension spring 142 to bring the label 11 into close contact with the side wall 3. On the other hand, when the box body 2 is not loaded, the rocking lever 122 is further rocked and displaced in the direction of the arrow 143 by the elastic force of the tension spring 142, and the contact piece 122 a is the head of the screw 138. It is held in contact with the portion 138a. Similarly,
A rising piece 144 is also formed for the swing lever 123,
Biased by tension spring 145.

Between the guide rollers 102 and 103, a sensor 151 for reading the marker written on the lower end of the label 11 is provided. This sensor 15
Reference numeral 1 is a protrusion 1 facing the label 11 and facing each other.
When the marker interrupts the optical path formed between the pair of light emitting / receiving elements embedded in 51a and 151b, it is detected that the supply of the label 11 for one sheet is completed, and the timer 48 When the time limit has elapsed, the pressing roller 106 that has been projected is retracted.

The sensor 151 has an elongated hole 152 formed in the base 111 as shown in FIG. 6 or 7, for example.
The mounting piece 15 of the sensor 151 that can be displaced above
A nut 154 is screwed onto a bolt 153 that connects the 1c and the elongated hole 152, and is fixed at a desired position. In this way, it becomes possible to absorb the deviation of the position where the marker is formed and to accurately supply only one label 11.

Further, in relation to the turntable 113, there is provided a detection lever 162 which is swingably supported by a shaft 161 provided upright on the base 111. The detection lever 162 is formed in a substantially U shape, and an abutting piece 163 that abuts on the outer peripheral surface of the label roll 101 is hung from one end 162a and is locked to the other end 162b. The pin 164 is erected. In response to this,
A locking pin 165 is provided upright on the base 111, and a tension spring 166 is stretched between the locking pin 164 and the locking pin 164.

Therefore, the detection lever 162 is elastically biased in the direction of the arrow 167 by the elastic force of the tension spring 166, and when the remaining amount of the label 11 becomes small, the state shown in FIG. Swing-displace to the state shown. Base 11
Also, the other end 162b of the detection lever 162 is provided on
7, a limit switch 168 is attached so that when the remaining amount of the label 11 becomes small, the other end portion 162b causes the limit switch 168 to move.
The operating piece 168a is pressed. As a result, the remaining amount warning lamp 45 is turned on and the worker is informed of the label roll 101.
Notify that it is time to replace. The pasting means 14 is symmetrical to the pasting means 13.

As described above, in the label sticking machine 1 according to the present invention, the support arms 23, which support the conveyor belts 5, 7,
As indicated by reference numeral 33, 24 is configured so that it can be flipped up so that the vicinity of the sticking position 12 is exposed, so that work such as replacement of the label roll 101 and recovery from winding of the label 11 can be easily performed. Therefore, the workability can be improved.

Further, the two conveyor belts 5, 6; 7, 8 are provided for each of the side walls 3, 4 so that the side walls 3, 4 of the box body 2 are vertically faced and sandwiched therebetween. Regardless of the width (80 to 600 mm in this embodiment), stable conveyance is possible.

[0051]

The label sticking machine according to the invention of claim 1 is
As described above, when attaching a label to both side walls of a box body having an open upper surface, a support arm that adheres to the upper surface of the side wall and supports the upper second transport belt that conveys the box body is attached to the attaching means. It is configured to be able to jump up so as to open the vicinity of the pasting position where is exposed.

Therefore, a work space for loading the label can be easily secured to improve the workability in case of trouble such as replacement of the label and winding of the label around the pressing roller. be able to.

Further, in the label sticking machine according to the invention of claim 2, as described above, the lower first conveyor belt is also constituted by a pair of left and right so as to face the upper second conveyor belt, and the box body The left and right first and second conveyor belts are moved toward and away from each other according to the width.

Therefore, regardless of the width of the box body, both side walls of the box body are always sandwiched and conveyed by the first and second conveyor belts facing each other, regardless of the width of the box body. The box body can be stably transported.

Furthermore, in the label sticking machine according to the invention of claim 3, as described above, in the support arm, the second
Of the drive roller and the driven roller around which the conveyor belt is wound, the driven roller is rotated by a moving piece that is displaceable in the extension direction of the support arm and is elastically biased toward the free end side of the support arm. Support freely.

Therefore, slack in the second conveyor belt does not occur regardless of the load on the second conveyor belt such as whether or not the box is being conveyed, and also when the support arm is in the jumping state. It can be supported with a constant tension.

[Brief description of drawings]

FIG. 1 is a front view showing a simplified overall configuration of a label sticking machine according to an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view for explaining the structure of a support arm of the conveyor belt according to the present invention.

FIG. 4 is an exploded perspective view for explaining the structure of the support arm.

FIG. 5 is an exploded perspective view for explaining a structure of a locking pin that holds the support arm in a horizontal state or a jumping state.

FIG. 6 is an exploded perspective view for explaining the structure of a sticking unit that sticks a label to a box.

FIG. 7 is a plan view for explaining the operation of the pasting means at the time of pasting.

FIG. 8 is a plan view for explaining an operation of the pasting unit at the time of finishing the pasting.

[Explanation of symbols]

 1 Labeling Machine 2 Box Body 3 Side Wall 4 Side Wall 5 Conveyor Belt (Second Conveyor Belt) 6 Conveyor Belt (First Conveyor Belt) 7 Conveyor Belt (Second Conveyor Belt) 8 Conveyor Belt (First Conveyor Belt) 11 Label 12 Sticking position 13 Sticking means 14 Sticking means 15 Base 17 Support member (support pillar) 18 Support member (support pillar) 23 Support arm 24 Support arm 25a Roller (driven roller) 25b Roller (drive roller) 33 Jumping state 41 Operation part 76 Moving piece 81 Compression spring 100 Locking pin 101 Label roll 102 Guide roller 103 Guide roller 104 Guide roller 105 Guide roller 106 Pressing roller 107 Pressing roller 108 Pressing roller 111 Base 113 Turntable 121 Swing lever 122 Swing lever 123 Swing Moving lever 134 Cutter blade 15 1 Sensor 162 Detection lever 168 Limit switch

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Antaka Kitawaki 13-43 Besshohonmachi, Takatsuki City, Osaka Prefecture

Claims (3)

[Claims] 1. A label sticking machine for a side wall of a box having an open upper surface, which is wound around a roller on a base and is mounted on the box and conveyed so as to pass through a predetermined sticking position. A first conveyor belt, which is disposed above the box body to face the first conveyor belt,
A pair of left and right second conveyor belts, which closely adhere to the upper surfaces of both side walls of the box body and convey the box body in synchronization with the first conveyor belt, and the second conveyor belt are respectively wound around the base, and are mounted on the base. A pair of support arms that are swingably supported by a standing support column and that can jump up so as to open at least the vicinity of the sticking position, and are sandwiched between the first and second conveyor belts at the sticking position. A label that is configured to project and retract toward the side wall of at least one of the boxes being conveyed, and rolls out the label wound in a roll shape along with the conveyance of the box, and attaches it to the side wall. A label sticking machine comprising: 2. The first conveyor belt is composed of a pair of left and right belts corresponding to the second conveyor belt, and a pair of left and right rollers on a base side around which the pair of left and right first conveyor belts are respectively wound. 2. The label sticking machine according to claim 1, wherein the pair of support arms around which the pair of second transport belts are respectively wound are supported by the base so that they can approach and separate from each other. 3. The support arm includes a drive roller provided on a base end side thereof and a driven roller provided on a free end side thereof, and the driven roller is a movable piece displaceable in an extension direction of the support arm. 3. The label sticking machine according to claim 1, wherein the moving piece is elastically urged toward the free end side of the support arm by an elastic member. .