JPH0755689B2 - Packaging material folding device in packaging machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to, for example, a packaging material folding device of a packaging machine that mechanically automatically packages an article with a single packaging material.

[Problems to be Solved by Conventional Techniques and Inventions] Conventionally, a method of manually folding can be performed in a considerably complicated manner, but mechanical folding has a limitation in the manner of folding. The present applicant has devised a special packaging method by machine folding and applied for it earlier (see Japanese Patent Application Laid-Open No. 62-16360), but thereafter, it is directly used for implementing the packaging method described in the publication. We are making efforts to realize a paper wrapping machine and have filed various applications for the paper wrapping machine.

In this paper wrapping machine, the intervals between the folding plates for wrapping an article with wrapping paper are adjusted and set in advance before wrapping based on the set size of the article.

However, even for articles of a specific size (for example, a paper box), there is a slight error in the size.Therefore, if the size is too large, the folding plate may collide with the article, which may damage the article or stop the packaging machine. It was a cause of poor operating efficiency. This applies not only to the error in the article size, but also to the case where the paper box swells due to the contents. On the other hand, if the size is too small, it becomes difficult to wrap the wrapping paper with tension on the article, which causes wrinkles and deteriorates the packaging condition.

An object of the present invention is to correct the preset gap between the folding members only when the size error of the supplied article is out of the allowable range to prevent a collision between the folding member and the article at the time of packaging, and to perform a packaging operation. It is to realize the rapid processing of.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, in the present invention, in the packaging material folding device of the packaging machine, the interval of the folding members for packaging the article with the packaging material can be adjusted and set in advance based on the set size of the article. Article size setting means for presetting the size of the article to be packed before packaging, folding member interval adjusting means for presetting and setting the spacing of the folding members based on the size set by the article size setting means, and the article size setting Error discriminating means for outputting a signal only when it is discriminated that the size error of the article actually supplied with respect to the size set by the means is outside a predetermined allowable range, and the folding member based on the signal from the error discriminating means. The gist of the present invention is to provide a control means for drivingly controlling the space adjusting means to correct the space between the folding members.

[Action]

Before the packaging, when the size of the article to be packaged is set by the article size setting means, the interval between the folding members is adjusted and set so as to correspond to the set size. Then, during the packaging, when the error discriminating unit discriminates that the size error of the supplied articles is out of the predetermined allowable range, the signal is sent to the control unit, and the control unit controls the folding member interval adjusting unit. Drive control. Then, the intervals of the folding members are corrected in accordance with the supplied articles with a size error outside the allowable range.

[First Embodiment] A paper wrapping machine according to an embodiment of the present invention will be described below with reference to Figs.

Regarding the wrapping paper supply device A First, the wrapping paper supply device A will be described with reference to FIGS.

The wrapping paper feeder A is a wrapping paper conveyor 3 installed horizontally between the left and right machine casings 1 and 2 (see FIGS. 2 and 3 (a)-
(See (e)) and a wrapping paper feeding mechanism 4 (see FIGS. 4 to 8) installed outside the rear end portions 1b and 2b of the left and right machine casings 1 and 2.

The wrapping paper conveyor 3 will be described in detail with reference to FIGS. 2 and 3 (a) to (e).

Rotating shafts 5 and 6 extending horizontally in the left-right direction are installed between the front end portions 1a and 2a of the left and right machine frames 1 and 2 and between the rear end portions 1b and 2b. Is formed with threaded portions 5a, 6a and threaded portions 5b, 6b (how the screw advances with respect to the threaded portions 5a, 6a). A female screw member 7 is provided on both screw portions 5a and 5b of the rotating shaft 5 on the front side.
Are screwed together. Belt conveyors 8 extend in the front-rear direction on both left and right sides between the front and rear rotary shafts 5 and 6, and outer frames 9 of both conveyors 8 are provided.
The front end portion of is fixed to the lower side of both female screw members 7. The rotating shafts 6 on the rear side are inserted into the rear ends of the outer frames 9, and the female screw member 10 fixed to the rear ends of the outer frames 9 has both screw parts 6a, 6b of the rotating shafts 6. It is screwed to.

The rotating shaft 6 on the rear side is provided between the rear end portions 1b and 2b of the left and right machine frames 1 and 2.
A drive shaft 12 on the lower side is installed at the rear of, and a support shaft 11 and a tension shaft 13 on the upper side are installed so as not to rotate. A lower drive pulley 15 is supported on the lower drive shaft 12 in the outer frames 9 of both the transport units 8 so as to be integrally rotatable and movable in the axial direction together with the outer frames 9. Upper support shaft
11 includes an upper drive pulley 14 in the outer frame 9 of both the transport units 8.
Are rotatably supported and movable together with both outer frames 9 in the axial direction. Tension pulleys 16 are rotatably supported on the left and right sides of the tension shaft 13, and the outer frames 9 are fitted to the tension pulley 16 so as to be movable in the axial direction. This tension pulley is provided at the rear end of both outer frames 9.
Another tension pulley 17 is supported on the lower side of 16.
Upper and lower driven pulleys 18 and 19 and upper and lower tension pulleys 20 and 21 are supported on the front ends of the outer frames 9. Between the upper and lower driven pulleys 18 and 19 and the upper and lower drive pulleys 14 and 15, both upper and lower conveyor belts 22 and 23 are provided between the tension pulleys 1 and 2.
It is hung over 6,17,20,21. A belt drive motor 24 is attached to the inside of the rear end portion 2b of the right machine casing 2, and its rotation is transmitted to the lower drive shaft 12 via gears 25, 26, 27, 28 and the like. The rotation of the lower drive shaft 12 is transmitted to the upper drive pulley 14 via the gears 29, 30 on the left and right sides thereof. When the lower drive shaft 12 rotates, the upper and lower conveyor belts 22 and 23 rotate in the direction of arrow a while being in contact with each other.

A belt conveyance unit left / right position setting motor 31 is attached to the inside of the front end 1a of the left machine casing 1, and a drive sprocket 32 fixed to its output shaft 31a and the left ends of the both rotary shafts 5 and 6 are attached. An interlocking chain 35 is stretched between the driven sprockets 33 and 34 fixed to the section via a tension sprocket 36. The rotation of the output shaft 31a of the motor 31 is transmitted to both rotary shafts 5 and 6 through the interlocking chain 35. And
When both rotary shafts 5 and 6 rotate, the female screw members 7 and 10 move on the screw parts 5a, 5b, 6a and 6b, and the left and right belt conveying parts 8 move in the left and right direction of the packaging part 37 between them. They are arranged so as to approach and separate from each other with respect to the central position 37a.

A position detecting potentiometer 38 is attached to the inside of the right side machine frame 2 in the vicinity of the rear rotating shaft 6 and is interlocked with the rear rotating shaft 6 via gears 39a, 39b. There is.

An article guide plate 40 extending in the front-rear direction is attached to the inside of the outer frame 9 of the both belt conveying units 8, and a front portion 40a thereof is attached to the outer frame 9.
Projects forward from the front end of the. This article guide plate 40
Moves in the left-right direction together with the belt transport unit 8.

Folding rollers 410 and 411 are provided on the support shaft 11 and the drive shaft 12 so as to be adjacent to the inner sides of the outer frames 9 of both the transport units 8. The fold-providing rollers 411 on the drive shaft 12 are attached to the outer frame 9 via brackets 414, and are supported so as to be integrally rotatable with the drive shaft 12 and movable in the axial direction together with the outer frames 9. . A ridge 413 having a V-shaped cross section that continuously extends in the entire circumferential direction is provided on the outer circumference of the both fold-providing rollers 411.
Are formed. Also, the double-folding roller on the spindle 11.
410 is attached to the drive pulley 14 on the upper side, and is supported so as to be rotatable with respect to the support shaft 11 and movable in the axial direction together with both outer frames 9. A concave groove 412 having a V-shaped cross section is formed on the outer circumference of the both fold-providing rollers 410 so as to extend continuously in the entire circumferential direction, and the concave groove 412 and the ridge 413 are fitted to each other. The groove 412 and the ridge 413 form a pair of both conveyor belts.
It is located on the locus along the transport direction a of the wrapping paper 400 between the facing inner edges of 22,23. The concave groove 412 of the pair of left and right crease imparting rollers 410 and the ridge 413 of the pair of left and right crease imparting rollers 411
S410 and S411 are the space S40 between the article guide plates 40 in the left-right direction.
Is the same as.

By the rotation shafts 5 and 6, the female screw members 7 and 10, the belt conveying unit left and right position setting motor 31, the interlocking chain 35 and the like, the distance S8 between the belt conveying units 8 and the crease imparting rollers 410 and 411 are set. A mechanism for adjusting the left-right direction spacing S410, S411 and the left-right direction spacing S40 between the article guide plates 40 with respect to the left-right direction center position 37a of the packaging unit 37 is configured according to the left-right direction length L of the article 500.

The wrapping paper feeding mechanism 4 will be described in detail with reference to FIGS.

As shown in FIGS. 4 and 5, the upper and lower mounting bases 41 and 42 are supported at their rear ends by a hinge 44 so as to be vertically rotatable with respect to the frame body 43, and hanging wires are provided on both left and right sides of the front end thereof. One ends 45a and 46a of the 45 and 46 are connected. Rear ends of the left and right machine frames 1 and 2
On the lower side between 1b and 2b, a pair of upper and lower rotating shafts 47 and 48 are installed,
The other ends 45b, 46b of the suspension wires 45, 46 are wound around the winding drums 49, 50 fixed to the left and right ends thereof via rollers 49a, 50a. Both rotation shafts 47 and 48 are on both left and right machine frames.
It is interlocked with the wire winding motors 51 and 52 attached to 1 and 2. Then, by driving the motors 51 and 52, both rotating shafts 4
When 7 and 48 rotate, both mounting tables 41 and 42 are tilted in the vertical direction via both suspension wires 45 and 46.

A rear positioning plate 53 is movably mounted in the front-rear direction on the upper and lower mounting bases 41, 42, and guide portions 53a at the left and right ends thereof are disposed.
Are movably supported along the left and right edges of the mounting tables 41, 42. An interlocking shaft 5 is provided on the lower side of the front ends of the upper and lower mounting tables 41, 42.
4 is rotatably installed, and the sprocket 55 and the mounting table 4 fixed to the left and right ends of the interlocking shaft 54 outside the mounting tables 41 and 42.
An interlocking chain 57 is hung between the sprocket 56 supported on the left and right sides of the rear ends of the 1,42. Both guide portions 53a of the rear positioning plate 53 are connected to both interlocking chains 57. Then, when the operator moves the rear positioning plate 53 in the front-back direction, the interlocking shaft 54 rotates via both interlocking chains 57.

Left and right positioning plates 58, 59 are supported on the upper and lower mounting tables 41, 42 in front of the rear positioning plate 53 so as to be movable in the left and right directions along the elongated hole 60. A rack plate 61 is fixed to the lower sides of the positioning plates 58 and 59 below the mounting tables 41 and 42 through a long hole 60, and a pinion 62 is meshed between the rack plates 61. Then, when the operator moves one of the left and right positioning plates 58, 59 in the left and right direction, the left and right positioning plates 58, 59 are moved in the left and right direction of the packaging unit 37 via the both rack plates 61 and the pinion 62. They are arranged so as to approach and separate from each other with respect to the central position 37a.

In the vicinity of the interlocking shaft 54, a paper size detecting potentiometer 63 is attached to the left side of the upper and lower mounting tables 41, 42,
The interlocking shaft 54 is interlocked via gears 64 and 65.
A paper size detecting potentiometer 66 is attached to the lower sides of the upper and lower mounting tables 41, 42 near the pinion 62, and is linked to the pinion 62 via gears 67, 68.

Two types of wrapping papers 400 of different sizes are placed on the upper and lower mounting tables 41, 42, and the positioning plates 53, 58, 59 are moved and adjusted according to the respective wrapping papers 400. .

As shown in FIGS. 6 to 8, a support plate 69 and a support are provided on the upper and lower sides between the rear end portions 1b and 2b of the left and right machine frames 1 and 2 adjacent to the front end portions of the upper and lower mounting bases 41 and 42, respectively. A pipe 70 is installed, and both upper and lower guide passages 73, 7 are provided between the upper guide plates 71 and the lower guide plates 72 attached to the support plate 69 and the support pipe 70.
4 are formed. In front of the support plate 69 and the support pipe 70, a pair of upper and lower suspension plates 75, 76 are installed between the rear end portions 1b, 2b of the left and right machine frames 1, 2 and are attached to the mounting plates 75, 76. An intermediate guide passage 78 is formed between the two guide plates 77. The inlet 78a of the guide passage 78 is the outlet 7 of the lower guide passage 74.
Connected to 4b and exit 78 of this guide passage 78
The b is connected to the outlet 73b of the upper guide passage 73, and the outlet 73b corresponds to the rear end portion of both the left and right belt conveying portions 8 of the wrapping paper conveying conveyor 3. The inlets 73a, 74a of the upper and lower guide passages 73, 74 correspond to the front ends of the upper and lower mounting tables 41, 42. The upper and lower guide plates 71 and 7 which form the upper and lower guide passages 73, 74 have a center position in the horizontal direction of the packaging portion 37.
Notch at a position shifted to the left or right with respect to 37a 71a, 72a
Are formed.

A U-shaped support member 79 is supported on the upper and lower support plates 69 in the upper and lower cuts 71a and 72a so as to be rotatable in the vertical direction about a drive shaft 80. 81
Are supported by a rotating shaft 82. The drive shaft 80 and the rotary shaft 82 are interlocked by each gear 83. Above the upper and lower support members 79, the air cylinder 84 for holding the wrapping paper is attached to the mounting plate 85.
And attached to the support tube 70. Its piston rod 84
The a is connected to the support member 79, and the support member 79 moves up and down as the piston rod 84a moves back and forth. The wrapping paper feeding motors 86 and 87 are attached to the inside of the left side machine frame 1 above the upper and lower support plates 69, and the rotation of the upper motor 86 is transmitted to the upper drive shaft 80 via the belt 90. At the same time, the rotation of the lower motor 87 is transmitted to the lower drive shaft 80 via the belt 95. And the upper and lower drive shafts
The rotation of 80 is transmitted to the rotation roller 81 via each gear 83 and the rotation shaft 82 of the support member 79.

A limit switch 104 is attached to the front side of both the upper and lower support plates 69, and with the upward movement of the upper and lower support members 79, the limit switch 104 is provided via an operating plate 105a above it and an operating rod 105b on the support plate 69. Is getting cut off.

A pair of left and right pressing members 106 are supported on the rear sides of the upper and lower support tubes 70 corresponding to the rotating rollers 81 so as to be vertically movable, and the upper ends thereof are provided at the inlets 73a and 74a of the upper and lower guide passages 73 and 74. A hook portion 106b protruding rearward from the upright portion 106a is formed. The hook portion 106b can press the front end portion of the wrapping paper 400 placed on the upper and lower mounting tables 41, 42 from above by the weight of the pressing member 106. Similarly, air jet nozzles 107 are attached to the upper and lower support tubes 70 corresponding to the rotating rollers 81, and the wrapping paper 40 on the upper and lower mounting tables 41 and 42 is attached.
Air can be ejected to the front end of 0.

A wrapping paper detection sensor 108 is attached near the rear end of both the left and right belt carrying portions 8 of the wrapping paper carrying conveyor 3.

Article Supply Device B Next, the article supply device B will be described with reference to FIGS.

The article supply device B includes a wrapping section 37 of the wrapping paper conveyor 3.
And an article receiving mechanism 109 (see FIGS. 9 to 11) installed below the article receiving mechanism 109 from the outside between the front end portions 1a and 2a of the left and right machine casings 1 and 2 under the wrapping paper conveying conveyor 3 as well. Stand mechanism
Conveyor conveyor 110 installed over 109 (12th, 13th
(See the figure) and.

The article receiving mechanism 109 will be described in detail with reference to FIGS.

Support plates 111A and 111B are provided above and below the left and right machine frames 1 and 2, and a center mounting rod 112 is vertically installed on a bearing portion 111a projecting forward at the center portion in the left-right direction. It is supported so that it can move up and down. The center mounting rod 112 is right below the center position 37a of the packaging portion 37 in the left-right direction. A mounting block 113 is fixed to the central mounting rod 112 in the middle of the upper and lower bearings 111a, and a supporting rod 114 extending horizontally in both left and right directions and a supporting rod 115 extending horizontally in the front are attached to the mounting block 113.
And are fixed.

A support block 116 is movably fitted to the left and right support rods 114 in the left-right direction, and a rear mounting rod 117 is erected on the support block 116 in an upright state. A slide shaft 119 and a guide rod 120 are installed on a mounting plate 118 fixed on the left and right sides of the upper support plate 111A so as to extend in the left and right directions.
21 is fitted so as to be movable in the left-right direction. The rear end portions of the left and right slide plates 121 are engaged with the guide rod 120 so as to be movable in the left and right directions. Three guide rollers 122 are supported on the front side of the slide plate 121, and a rear mounting rod 117 is vertically movably inserted between the guide rollers 122. Both the left and right slide plates 121 are the wrapping paper conveyor 3
Are connected to the outer frames 9 of the left and right belt conveyors 8 by connecting plates 121a. When both the belt transport units 8 approach and separate in the left-right direction, the slide plates 121 move in the left-right direction along the slide shaft 119 and the guide rod 120, and this movement causes the left-right rear mounting rod 117 to move both support rods 114. The center mounting rod 112 is moved toward and away from each other.

A slide plate 123 is fitted to the support rod 115 so as to be movable in the front-rear direction, and front mounting rods 124 are provided upright on the left and right sides of the slide plate 123. Left and right machine frames 1, 2
A support plate 125 is erected on the lower side between the front end portions 1a and 2a, and a pair of left and right rotating shafts 126 and 127 are provided between the left and right side portions of the support plate 125 and the left and right side portions of the upper support plate 111A. Is supported. The left and right rotating shafts 126 and 127 have screw portions 126a and 127a.
The female screw member 128 is screwed into the screw portions 126a and 127a. A moving plate 129 is provided between the female screw members 128.
Has been erected. Three guide rollers 131 are respectively supported by mounting plates 130 standing on the left and right sides of the moving plate 129 near the center, and the front mounting rod 124 is vertically movable between the guide rollers 131. Has been inserted.

The support plate 125 is provided inside the front end portion 2a of the right machine casing 2.
A front mounting rod front-rear direction position setting motor 132 as a folding member interval adjusting means is attached, and a sprocket 133 interlocking with this motor 132 and the front end portions of both the rotating shafts 126 and 127 are attached. Chain 136 linked with sprockets 134 and 135
Are interlocked via each sprocket 137, 138, 139, 140. Then, when the interlocking chain 136 is rotated by the motor 132 to rotate both rotary shafts 126 and 127, the female screw member 128 is
Moves in the front-rear direction along the screw portions 126a, 127a, and along with this movement, both front mounting rods 124 move in the front-rear direction to approach and separate from the central mounting rod 112.

A position detecting potentiometer 141 is attached to the support plate 125 adjacent to the motor 132, and is interlocked with the right rotating shaft 127 via gears 142, 143, 144, 145.

The article conveying conveyor 110 will be described in detail with reference to FIGS.

A pair of left and right frame bodies 146 and 147 are attached between the support plates 111A and 125 (see FIG. 9), and a drive shaft 148 is installed in the center portion in the front-rear direction between both frame bodies 146 and 147. An article conveyance drive motor 149 is attached to the support plate 125, and its rotation is caused by a belt 151.
It is adapted to be transmitted to the drive shaft 148 via. A plurality of sprockets 153 are fixed to the drive shaft 148. Behind the drive shaft 148, the left and right frame bodies 146, 1
A plurality of support plates 155 are supported in a cantilever shape toward the rear on a mounting plate 154 installed between 47, and a sprocket 156 is provided at the tip of each support plate 155 slightly ahead of the central mounting rod 112. Is supported. A driven shaft 157 is installed between the front ends of the left and right frame bodies 146 and 147, and a plurality of sprockets 158 are fixed to the driven shaft 157. A tension shaft 159 is provided above the drive shaft 148 between the left and right frame bodies 146 and 147, and a sprocket 161 is supported by a plurality of levers 160 fixed to the tension shaft 159. Each of the sprockets 153, 156, 158, 161 has a plurality of carrier chains 1
62 are wound in parallel.

An article stopper plate 163 is attached to the upper support plate 111A so as to extend in the left-right direction slightly behind the center mounting rod 112. The rear mounting rod 117 moves in the left-right direction along the stopper plate 163 between the article stopper plate 163 and the rear end of each chain 162, and the front mounting rod 124 is the same between the chains 162. Moves forward and backward along the chain 162.

A limit switch 164 is attached to the moving plate 129 (see FIG. 9) of the article receiving mechanism 109 so that it can be operated by the article 500 that is carried on each chain 162 and conveyed in the direction of arrow b. .

In addition, in the article receiving mechanism 109, the support lot 1
14, support block 116, slide shaft 119, slide plate 12
1. The guide roller 122 and the like constitute a mechanism for adjusting the left-right direction spacing S117 of the left and right rear mounting rods 117 with respect to the left-right direction center position 37a of the packaging unit 37 according to the left-right direction length L of the article 500. And the connecting plate 121 of this slide plate 121
By a, a mechanism is formed that interlocks with the left and right belt transport units 8 of the wrapping paper transport conveyor 3 to move to the left and right. Further, the support rod 115, the slide plate 123, the rotary shafts 126 and 127, the female screw member 128, the moving plate 129, the guide roller 131, the motor 132.
The chain 136 and the like constitute a mechanism for adjusting the front-rear spacing M124 between the front mounting rods 124 and the article stopper plate 163 of the article conveyor 110 according to the front-rear width W of the article 500.

In particular, as shown in FIGS. 9 and 12, the mounting plate 70 is attached to the moving plate 129 that is moved back and forth by the two rotation shafts 126 and 127 of the article receiving mechanism 109.
1 is attached, and a light projecting tube 700a and a light receiving tube 700b of the photoelectric switch 700 as error discriminating means are mounted on the both mounting plates 701. The light from the photoelectric switch 700 is transferred to the wrapping paper conveyor 3 as shown in FIGS. 2 and 3 (a).
It is designed to be fed through the long holes 702 formed in both article guide plates 40. Since the photoelectric switch 700 moves back and forth at the same time when the front mounting rod 124 of the article receiving mechanism 109 moves back and forth according to the front-back width W of the article 500, as shown in FIGS. 33 (b) and (c), Item 500 is placed on each mounting rod 112, 11
When it comes in contact with the article stopper plate 163 and stops on 7,124,
The front surface 503 of the article 500 is always located near the line connecting the light projecting tube 700a and the light receiving tube 700b of the photoelectric switch 700.

Wrapping Paper Folding Device C Next, the wrapping paper folding device C will be described with reference to FIGS.

The wrapping paper folding device C is provided above the wrapping paper transport conveyor 3 and is provided with a pair of front and rear folds of the wrapping paper 400 from both front and rear sides of the lower surface 502 of the article 500 (see FIG. 35 (a)). Lower first folding plates 165 and 166 (see FIG. 14) and article 5
A pair of left and right lower surface front second folding plates 167 and 168 (see FIG. 20) for folding the wrapping paper 400 along the lower surface 502 from both the front and rear left and right sides of the lower surface 502 of 00 and a pair of left and right rear lower second folds. Plates 169 and 170 (see FIG. 17) and front surface 50 of article 500
3 and the pair of left and right front first folding plates 17 for folding the wrapping paper 400 along the front surface 503 and the rear surface 504 from both the left and right sides of the rear surface 504.
1,172 (see Fig. 20) and a pair of left and right rear first folding plates 1
73,174 (see FIG. 17) and the front surface 503 and rear surface 50 of the article 500.
Wrapping paper 4 from both front and rear sides of 4 toward the front surface 503 and the rear surface 504
It has a front second folding plate 175 (see FIG. 20) for folding 00 and a rear second folding plate 176 (see FIG. 17). The folding plates 165-176 will be described in detail below.

As shown in FIG. 14, rails 177 are attached to the front inner surfaces of the left and right machine frames 1 and 2 so as to extend in the front-rear direction, and a support plate 178 is installed between the rails 177 so as to be movable in the front-rear direction. ing. A front lower surface first folding plate 165 is attached to the center of the support plate 178 in the left-right direction. This bottom 1st folding plate 1
65 includes a pair of left and right folding parts 179 and a folding part 180 between them, and the entire rear part 179a of the pair of left and right folding parts 179 is the support plate 1.
A protrusion 179b that protrudes rearward from 78 and extends forward is formed at an inner edge portion of the folding portion 179 that faces each other.
The middle fold 180 is slightly below the protrusions 179b, and the shaft 181
Is rotatably supported and always urged upward,
The shaft 181 extends obliquely rearward and upward and is flush with the rear portions 179a of the left and right folding portions 179.

Mounting plate 182 attached to the front and rear center of both machine frames 1 and 2
Mounting plate 182b installed between a and the rear ends 1b and 2b of both machine casings 1 and 2
A pair of left and right rails 182 are attached between the rails 182 so as to extend in the front-rear direction, and a support plate 183 is installed between the rails 182 so as to be movable in the front-rear direction. At the center of the support plate 183 in the left-right direction, a rear lower surface first folding plate 166 is attached. The lower surface first folding plate 166 has a pair of left and right folding portions 1
When the front portions 184b of the pair of left and right folding portions 184 project forward from the support plate 183 and incline downward, and the front and rear lower underside first folding plates 165, 166 approach each other. On the front part 184b of the folding part 184, the first lower surface on the front side
The rear parts 179a of the left and right folding parts 179 of the folding plate 165 overlap each other. The middle folding part 185 is the front part of the left and right folding parts 184.
It is rotatably supported about the shaft 186 and slightly biased upward between the shafts 186 and slightly obliquely rearward and upward from the shaft 186, and is flush with the rear portions 184a of the left and right folding portions 184. It has become.

Below the front rail 177, a pair of front and rear sprockets 187a, 187b, 188a, 188b are attached on the inner surfaces of the left and right machine casings 1, 2 on the same axial center.
Chains 189 and 190 are hung between b, 188a and 188b. Both ends of a front support plate 178 are attached to the chain 189 between the sprockets 187a and 187b, and a tilting lever 191 is attached to the other chain 190. Rods 192 are connected between both ends of the rear side support plate 183 and the lever 191. Then, by tilting the lever 191, both chains 189,1
When 90 is rotated, the front support plate 178 moves in the front-rear direction along the rail 177, and the rear support plate 183 moves in the front-rear direction along the rail 182 via the rod 192, and both front and rear bottom surfaces are moved. The first folding plates 165 and 166 are moved toward and away from each other in the packaging portion 37.

As shown in FIGS. 16 to 19, as shown in FIGS.
A fixed support base 193 is installed above the left and right machine frames 1 and 2 above 6, and the support members 1 are provided on both left and right sides of the fixed support base 193.
94 and 195 are supported along the rail 196 so as to be movable in the left and right directions. A support block 198 is attached to the lower end of a connecting plate 197 extending downward from both the support members 194, 195, and a guide plate 199 is erected upward inside the support block 198. Inside the support block 198, the lower rear second folding plates 169, 170 are supported via a slider 200 so as to be movable in the left-right direction. This support block
A wire 201 is introduced into the inside of 198 and connected to the slider 200, and the slider 200 is pushed inward by a compression coil spring 202 wound around the outer circumference of the wire 201 in the support block 198, and the lower rear second folding plate. 169,170 support block 1
It is adapted to project from 98 to below the guide plate 199 and to the packaging portion 37. Then, the wire 201 is connected to the compression coil spring 2
When pulled against the bias of 02, the lower second rear folding plate 169,170
Are retracted from the packaging unit 37.

A mounting frame 204 is attached to the lower end of the connecting plate 203 extending downward from the outside of the support block 198, and the outer frames 9 of the left and right belt transporting units 8 of the wrapping paper transporting conveyor 3 are mounted in the mounting frame 204. It is fitted. Above the outer frame 9, the mounting frame
Corresponding to the wrapping portion 37, a paper retainer 205 extending in the front-rear direction on the left and right sides of the wrapping portion 37 is supported rotatably in the left-right direction around a shaft 206. For the bracket 207 attached on the mounting frame 204, the bolt 20 fixed to the paper retainer 205 is attached.
8 is inserted, and the paper presser 205 is the bracket 207 and the paper presser 2
The spring 209 wound around the bolt 208 urges it inwardly with respect to 05, and stops when the stopper nut 210 screwed to the bolt 208 is locked to the bracket 207. At this stationary position, the paper presser 205 slightly projects toward the wrapping portion 37 side from the outer frame 9 of the left and right belt conveying portions 8 of the wrapping paper conveying conveyor 3 and the guide plate 199 inside the support block 198.

A drive shaft 211 is installed below the fixed support base 193 between the left and right machine frames 1 and 2, and a connecting plate 197 of the support members 194 and 195 is supported on the drive shaft 211 so as to be movable in the left-right direction. . A folding plate position setting motor 213 is installed below the center of the fixed support base 193 in the left-right direction, and is linked to the drive shaft 211 via both pulleys 214 and 215 and a belt 216.

A slider 217 is supported on both of the support members 194, 195 so as to be movable in the left-right direction along a rail 218, and a rear first folding plate 173, 174 is provided on the front side of the slider 217.
Are supported rotatably in the left-right direction about a shaft 219. The rear first folding plates 173 and 174 have a support portion 220 that horizontally extends outward from the shaft 219, an intermediate portion 221 that vertically extends downward from the tip of the support portion 220, and an inwardly-inclined extension from the lower end of the intermediate portion 221. The slanted portion 222 and the slanted portion 2
20 is adjacent to the rear of the guide plate 199. The inside of this slanted portion 222 is a slanted folding edge 222a. A bracket 223 is fixed to the left and right support members 194 and 195, and a compression coil spring 224 is mounted between the bracket 223 and the rear first folding plates 173 and 174. This compression coil spring 224
As a result, the slanted portion 222 of the rear first folding plates 173, 174 is biased to rotate about the shaft 219 toward the packaging portion 37 side, and the lower end portion of the slanted portions 222 is the lower rear second folding plate 169, 170. On the other hand, it is designed to project inward of the guide plate 199 on the same horizontal plane. The wire 225 is introduced into the bracket 223 and is connected to the rear first folding plates 173 and 174. Then, when the wire 225 is pulled, the rear first folding plates 173, 174 rotate around the shaft 219 in the direction of retracting from the packaging portion 37 against the biasing force of the compression coil spring 224. A screw rod 226 is rotatably supported on the connecting plate 197 of the left and right support members 194, 195 in a state of protruding inward, and a slider
A female screw portion 227 formed on 217 is screwed onto the screw rod 226. The gear mounting portion 197a attached to the connecting plate 197 of the left and right support members 194, 195 has a gear 228 movable on the drive shaft 211 in the left and right directions and a gear 22 on the screw rod 226.
9, and the screw rod 226 is interlocked with the drive shaft 211 via the gears 228 and 229.

A pair of left and right rear second folding plates 176 are pivoted in the front-rear direction around the shaft 231 behind the rear first folding plates 173, 174 on the bracket 230 provided below the center of the fixed support base 193 in the left-right direction. Supported as possible. A shaft 232 is rotatably supported by the bracket 230, and levers 233 are fixed to the left and right ends thereof. The lever 233 and the second rear folding plate 176 are connected by a link 234, and the second rear folding plate 17 is connected.
6 is interlocked to rotate in the same direction. A bracket is attached to the fixed support 193 above the lever 233.
235 is fixed, and a compression coil spring 236 is mounted between the bracket 235 and the lever 233. The compression coil spring 236 urges the second rear folding plate 176 to rotate forward about the shaft 231 via the lever 233 and the link 234, and is adjacent to the rear first folding plates 173 and 174 behind the first folding plates 173 and 174. It is supposed to do. A wire 237 is introduced into the bracket 235 and connected to the lever 233. Then, when the wire 237 is pulled, the rear second folding plate 176 is rotated around the shaft 231 in the direction of retreating from the packaging portion 37 against the bias of the compression coil spring 236.

The connection plate 197 on the left side has a potentiometer 238 for position detection.
Are attached and are linked to the threaded rod 226 via gears 239 and 240.

On the other hand, as shown in FIGS. 16 and 20 to 22, in front of the fixed support base 193, a movable support base 241 is provided between the left and right machine frames 1 and 2 by a rail.
It is supported so as to be movable in the front-rear direction along 242. Support members 243, 244 are supported on the left and right sides of the movable support base 241 so as to be movable in the left and right directions along a rail 245.
A support block 247 is attached to the lower end of the connecting plate 246 extending downward from the support members 243 and 244.
Inside the 47, a guide plate 248 is erected upward. A slider 249 is supported in the support block 247 so as to be movable in the left-right direction, and second lower surface front folding plates 167 and 168 are attached to the slider 249. This support block 2
A wire 250 is introduced into the wire 47 and is connected to the slider 249. A compression coil spring 251 is wound around the outer periphery of the wire 250 in the support block 247.
The slider 249 is pushed inward by the 51 so that the lower second front fold plates 167, 168 project from the support block 247 under the guide plate 248 to the packaging unit 37. And
When the wire 250 is pulled, the lower second front folding plates 167, 168 are retracted from the packaging portion 37 against the bias of the compression coil spring 251.

An interlocking plate 252 extending forward is attached to the support block 247, and a plurality of guide rollers 253 are supported on the interlocking plate 252. An interlocking plate 254 extending rearward is attached to the female screw member 7 fixed to the front ends of the left and right belt transporting parts 8 of the wrapping paper transporting conveyor 3, and the intermediate part of the interlocking plate 254 is between the guide rollers 253. Supported by.

A slider 255 is supported on the support members 243 and 244 so as to be movable in the left-right direction along a rail 256. A shaft 219, which is the center of rotation of the rear first folding plates 173 and 174, extends forward and is inserted into the slider 255, and the slider 255 is the shaft 219.
On the other hand, it can be moved forward and backward. Front first folding plates 171 and 172 are supported by the shaft 219 so as to be integrally rotatable. The front first folding plates 171 and 172, like the rear first folding plates 173 and 174, include a support portion 257, an intermediate portion 258, a slant portion 259, and a folding edge 259a thereof. And the first folding plate on the rear surface
When the 173 and 174 rotate, the front first folding plates 171 and 172 also move to this axis.
It is designed to rotate in the same direction via 219.

An inwardly extending screw rod 260 is rotatably supported by the connecting plate 246 of the left and right support members 243 and 244, and a female screw portion 261 formed on the slider 255 is screwed to the screw rod 260. A gear 262 that meshes with a gear 229 on the screw rod 226 is supported by the gear mounting portion 197a of the connecting plate 197 of the left and right support members 194, 195 on the fixed support base 193 side, and the rotation center shaft 263 of the gear 262 is supported.
Is extended to the front. Connection plate 246 on the movable support 241 side
A gear 264 on the screw rod 260 and a gear 265 that meshes with the gear 264 are supported by the gear mounting portion 246a of the shaft 263.
In contrast, it is supported so as to be integrally rotatable and movable in the front-rear direction.

A bracket 266 is attached to the center of the movable support 241 in the left-right direction, and a front second folding plate 175 is fixed to a shaft 267a that is rotatably supported on both left and right sides of the bracket 266. A shaft 267b is rotatably supported between mounting rods 241a extending downward from both left and right ends of the movable support base 241, and the shaft 267a is rotatably supported below the coaxial 267b. There is. Lever 268 and 269 are fixed to both ends of the upper and lower shafts 267b and 267a, respectively, and a link 270 is connected between the both levers 268 and 269, and the lever 268 and 269 and the link 270 form a four-bar parallel link mechanism. ing. A bracket 271 is attached to the left end portion of the movable support base 241, and a compression coil spring 272 is attached between the bracket 271 and the lever 268. It is urged to rotate rearward about the shaft 267a via the node parallel link mechanism, and is arranged in front of and adjacent to the front first folding plates 171 and 172. The wire 273 is introduced into the bracket 271 and is connected to the lever 268. Then, when the wire 273 is pulled, the second front folding plate 175 is compressed by the compression coil spring 27.
It is configured to rotate around the shaft 267a in the direction of retreating from the packaging portion 37 against the bias of 2.

Of the sprockets 134, 135, 137, 138, 139, 140 (see FIG. 11) on which the interlocking chains 136 are hung on the front end sides of the left and right machine frames 1 and 2, the upper and right left and right sprockets 137 and 138 of the rotation center shaft 274 are extended rearward, and Both ends are machine frames
It is rotatably supported by a mounting plate 275 extending from 1,2. A threaded portion 274a is formed on the shaft 274, and the threaded portion 2
The female screw member 276 is screwed onto the 74a. Movable support 241
A long hole 277 extending in the left-right direction is formed at the front end portion of the interlocking plate 252 extending forward from the side support block 247.
The female screw member 276 is fitted in the 77 so as to be movable in the left-right direction, and is also integrally movable in the front-rear direction with the interlocking plate 252.

The left and right belt conveyors 8 of the wrapping paper conveyor 3
When the two move toward and away from each other, the left and right support members 194 and 195 on the fixed support 193 side move in the left and right directions through the mounting frame 204 and the connecting plates 203 and 197, and the left and right support members 243 and 244 on the movable support 241 side move both belt conveying units. 8 side interlocking plate 2
54, move in the left-right direction via the interlocking plate 252 and the connecting plate 246 on the side of the movable support base 241. As the rear support members 194, 195 and the front support members 243, 244 move in the left-right direction, the left and right rear rear first folding plates 173, 174, the left and right front first folding plates 171, 172, the left and right lower rear rear folding plates 169, 170. And left and right lower surface front second folding plates 167,168 and respective guide plates 199,2
The 48 and the left and right paper retainers 205 are also moved toward and away from the central position 37a of the packaging portion 37 at the same time.

Further, when the drive shaft 211 rotates on the fixed support base 193 side, the rotation is transmitted to both screw rods 226 on the fixed support base 193 side, and the gear 262 and the shaft are also attached to the screw rod 260 on the movable support base 241 side. 2
63, transmitted via gears 265, 264, and both rear sliders 2
Both the slider 17 on the front side 17 and the sliders 255 on the front side move in the left-right direction with respect to the support members 194, 195 on the rear side and the support members 243, 244 on the front side via the female screw portions 227, 261. Therefore, the left and right rear folding plates
173,174 and the left and right front first folding plates 171,172 are guide plates 19
9,248, etc. are moved toward and away from each other so as to move relative to each other.
The protruding size to 37 can be changed.

The interlocking plate 252 also moves in the left-right direction on the movable support base 241 side, but the female screw member 2 fitted in the elongated hole 277 at the front end portion thereof.
76 moves in the left-right direction along the elongated hole 277 as the interlocking plate 252 moves in the left-right direction.

On the other hand, when the shaft 274 with which the female screw member 276 is screwed rotates, the female screw member 276 moves in the front-rear direction together with the interlocking plate 252, and this movement causes the entire movable support base 241 to be fixed.
To move forward and backward. This allows the movable support 24
1 side lower surface front second folding plate 167,168, front side first folding plate 171,
172, the front second folding plate 175, and the guide plate 248 also move in the front-rear direction, and the lower rear rear folding plate 16 on the fixed support 193 side.
9,170, first rear folding plate 173,174 and second rear folding plate 176
In addition, it approaches and separates from the guide plate 199. Further, the interlocking plate 252 on the side of the movable support 241 is the interlocking plate on the side of the wrapping paper conveyor 3.
It moves back and forth with respect to 254 via each guide roller 253.

By the way, the upright surface on which the rear first folding plates 173, 174 on the fixed support base 193 rotates is located almost directly above the article stopper plate 163 of the article transport conveyor 110, and this upright surface is at the packaging reference position P. Has become.

The fixed support 193, the movable support 241, the support member 19
4,195,243,244, connecting plate 197,246, support block 198,247
As a result of the above, the pair of left and right lower surface front and rear portions second folding plates 167, 168, 169, 170 shown in FIG.
And a mechanism for adjusting the left-right direction spacing S171, S173 of the pair of left and right first and second double-sided first folding plates 171, 172, 173, 174 at the time of folding with respect to the left-right direction center position 37a of the packaging part 37 according to the left-right direction length L of the article 500. And the mounting frame 20
4, the connecting plate 203, the interlocking plates 252, 254, and the like constitute a mechanism that is interlocked with the left and right belt transporting units 8 of the wrapping paper transporting conveyor 3 in the horizontal direction. Further, the fixed support 193, the movable support 241, the support members 194, 195, 243, 244, the connecting plates 197, 24.
6, the support blocks 198, 247, the brackets 230, 266, etc., the second folding plate 167, 168, 169, the lower front and rear parts shown in FIG.
170 front and rear spacing when folded M167, M168, front and rear double-sided first folding plates 171, 172, 173, 174 front and rear spacing M171, M172 when folded
And a mechanism that adjusts the front-rear double-sided second folding plates 175, 176 when folded in the front-rear direction interval M175 with respect to the packaging reference position P in accordance with the front-rear width W of the article 500, the interlocking chain 136, the shaft 274, and the female screw. The member 276 and the like constitute a mechanism that interlocks with the front-back movement of the front mounting rod 124 of the article receiving mechanism 109.

In particular, in this embodiment, the folding edges 222a, 259a of the front first folding plates 171, 172 and the rear first folding plates 173, 174 are located above the articles 500 when folded into the article 500 as shown in FIG. 23 (a). It forms a slant of about 45 degrees inward from the corner T, but
As shown in FIG. 23 (b), it is necessary to keep the folded state the same even when the height of the article 500 changes from H1 to H2.
It is necessary to adjust the lateral spacing S171, 173 when folding the folding plates 171, 172, 173, 174 shown in the figure. This adjustment dimension is SH
It becomes × 2. Depending on the height H of the article 500, this spacing S171, S1
The mechanism for adjusting SH 73 by SH × 2 is the above-mentioned wrapping paper folding device C.
Drive shaft 211, folding plate position setting motor 213, belt 216, sliders 217 and 249, screw rods 226 and 260, and female screw portion 22.
7,261, gears 228,229,262,264,265, shaft 263 and the like. On the other hand, as shown in FIG.
When the length of the 500 in the left-right direction changes from L1 to L2, it is necessary to adjust the intervals S171 and S173 by SL × 2 by the above-described separate mechanism. Therefore, as shown in FIG.
When the height of 500 changes from H1 to H2 and the horizontal length from L1 to L2, it is necessary to adjust (SH + SL) × 2.

Regarding Package Unloading Device D Next, the package unpacking device D will be described with reference to FIGS.

The package delivery device D is a package push-out mechanism 278 (see FIGS. 16 and 24) installed so as to extend from the front side to the entire rear side at the central portion in the left-right direction of the wrapping device C, and the wrapping device. A package delivery guide mechanism 2 installed below the package support mechanism 278 behind the fixed support 193 of the apparatus C.
79 (see Figures 16, 25, 26).

The package pushing-out mechanism 278 will be described in detail with reference to FIGS.

Support rods 280 and 281 are installed between the front end portions 1a and 2a and between the rear end portions 1b and 2b of the left and right mechanism frames 1 and 2, and are extended rearward from the left-right center portion of the front support rod 280. A pair of support bars 282
A pair of sprockets 283 are supported by the bracket 284, and a pair of sprockets 285 are supported by a bracket 284 attached to the rear side of the center of the rear side support frame 281 in the left-right direction. A pair of chains 286 are stretched between the front and rear sprockets 283 and 285. The rear supporting rod 281
A chain guide plate 287 is attached to the upper part and the fixed support 193, and the upper running part of the chain 286 passes on the guide plate 287. A mounting frame 288 is attached to the support rod 280 on the front side below the both support rods 282, and the guide plate 287 is attached.
A chain guide passage member 290 including a pair of upper and lower guide plates 290a and 290b is attached to the lower ends of a plurality of suspension bars 289 extending downward from the mounting frame 288. The chain guide passage member 290 is formed by the pair of left and right front second folding plates 1.
The brackets 230 and 266 for supporting them between 75 and between the pair of left and right rear side second folding plates 176 are inserted, and the lower running portion of the chain 286 passes through this guide passage member 290.

A pair of push-out members 291 are attached to the chain 286 at equal intervals. In each of the push-out members 291, a pair of left and right push-out arms 292 extending in a direction orthogonal to the rotation direction c of the chain 286 has a pair of shafts with respect to the chain 286.
It is rotatably supported by 292a, and an L-shaped mounting plate 293 is rotatably supported between the ends thereof about the shaft 294 in the direction along the rotation direction c of the chain 286. A pair of left and right L-shaped levers 295 are rotatably supported on the chain 286 by a shaft 296 along the rotation direction c of the chain 286 at a position adjacent to the pushing arm 292 opposite to the rotation direction c of the chain 286. The tip of this lever 295 and the mounting plate 2
93 and 93 are connected by a link 297 via shafts 298a and 298b. The lever 295 is biased in the direction of arrow d, which is separated from the pushing arm 292.

A chain drive motor 299 is attached to the bracket 284, and this rotation causes the rotation center shaft 2 of the rear sprocket 285 to rotate.
It is designed to be transmitted to 85a. And the same motor 2
When the chain 286 rotates by 99, the pushing member 291 rotates together with the chain 286. When the pushing member 291 passes through the guide passage member 290, the base portion 295a of the lever 295 is restricted by the upper and lower guide plates 290a and 290b of the guide passage member 290, so that the lever 295 becomes parallel to the pushing arm 292 and is placed. The mounting portion 293a of the plate 293 becomes horizontal toward the rotation direction c of the chain 286, but the base portion 295a of the lever 295 is
When is released from the rear end of the guide passage member 290 below the rear sprocket 285, the lever 295 rotates in the direction of arrow d,
The mounting plate 293 rotates downward about the shaft 294 via the link 297. The mounting plate 293 maintains this state until the pushing member 291 reaches the upper portion of the rear sprocket 285, and thereafter, the base portion 295a of the lever 295 is regulated again by the guide plate 287 and returns to the original state.

The placing portions 293a of the placing plate 293 approach each other in the packaging portion 37 when moving horizontally in the rotation direction c of the chain 286 below the guide passage member 290. It comes in contact with and presses down the middle folding parts 180, 185.

A tooth plate 300 having a large number of irregularities on the outer circumference is attached on the rotation center shaft 285a of the rear sprocket 285, and a sensor 301 for detecting the irregularities of the tooth plate 300 is attached to the rear support rod 281. It is attached. A sensor 302 for detecting the pushing member 291 is attached to the mounting frame 288 near the front sprocket 283.

The package delivery guide mechanism 279 will be described in detail with reference to FIGS.

A pair of upper and lower mounting plates 303 are attached inside the left and right machine frames 1 and 2 behind the fixed support base 193, and a screw rod 304 is rotatably supported in an upright state between the both mounting plates 303. ing. This screw rod 304 is provided with a pulley 305, a belt 306, a pulley 307, a gear 308 and a gear 309 with respect to the drive shaft 211 on the fixed support base 193 side.
Are linked through. A moving block 310 is screwed to the both screw rods 304, and a support plate 311 is installed between the both moving blocks 310. A pair of front and rear suspension rods 312 are movably supported on the left and right sides of the center portion of the support plate 311 in the left-right direction, and the lower side first folding plate on the rear side is attached to the lower end portion of the suspension rod 312. A pair of left and right guide rods 313 extending in the front-rear direction above 166 are attached, and
At the front end of the guide rod 313, the rear lower surface first folding plate 166 is provided.
A guide rod 314 is attached to the front of the fixed support base 193 above the above. A compression coil spring 315 is wound around the outer periphery of the suspension rod 312 between the support plate 311 and the guide rod 313, and the elasticity thereof urges the suspension rod 312 downward.

In the wrapping paper folding device C, the interlocking plate 254 on the side of the wrapping paper transport conveyor 3 that passes over the interlocking plate 252 on the movable support base 241 side extends to the rear of the fixed support base 193, and inside the rear end portion of this interlocking plate 254. The guide rod 317 is located above the first lower folding plate 166 on the rear side.
Are attached via a connecting plate 316. This guide rod 317
Also, the guide rod 313 is extended to above the front end portion of the upper mounting table 41 of the wrapping paper supply device A.

Then, when the drive shaft 211 rotates, the screw rod 304 rotates, the female screw member 310 moves up and down, and the guide rods 313 and 314 also move up and down to approach and separate from the rear lower surface first folding plate 166. Accordingly, the vertical distance R313 between the guide rods 313 and 314 and the rear lower surface first folding plate 166 can be adjusted according to the height H of the article 500. Further, when the left and right belt conveyors 8 of the wrapping paper conveyor 3 approach and separate from each other, both interlocking plates 254 connected thereto also move in the left and right direction.
With the movement of 54, the left and right guide rods 317 also move toward and away from the center position 37a of the packaging portion 37 in the left-right direction. As a result, the lateral spacing S317 between the guide rods 317 can be adjusted according to the lateral length L of the article 500.

Tape Adhering Device E Next, the tape adhering device E will be described with reference to FIGS.

The tape sticking device E is installed between the front end portion of the upper loading table 41 of the wrapping paper feeding mechanism 4 and the rear end portions of the guide rods 313 and 317 of the package carrying-out guide mechanism 279. Has 318.

The both tape adhering mechanism 318 will be described in detail.

A rotary shaft 319 is provided below the mounting plate 182b between the left and right machine frames 1 and 2.
Is supported, and screw portions 319a and 319b are formed on the left and right sides thereof, respectively, in which the directions of advance of the screws are opposite to each other. Both screw parts 319
A female screw member 320 is screwed into the a and 319b, and is engaged with a rail 182c attached to the lower side of the mounting plate 182b so as to be movable in the left-right direction. The side plate 321 is attached to the female screw member 320 and extends forward. A tape mounting disc 322 is rotatably supported inside the lower portion of the side plate 321, and a tooth plate 324 having irregularities on the outer periphery is attached to the rotation center shaft 323 thereof. Corresponding to the tooth plate 324, a sensor 325 for detecting the unevenness is attached to the side plate 321.

An arm 326 is supported inside the upper portion of the side plate 321 so as to be tiltable in the front-rear direction about a shaft 327. This arm 326
A leaf spring 328 is attached to the above so as to extend in a cantilever shape above the tilting central axis 327, and a tip end portion 328a thereof is formed to be bent backward in an L shape. A tape feed roller 329 is supported on the arm 326 on the front side of the leaf spring 328, and
The intermediate portion of 328 is pressed against the tape feed roller 329. The tape feed pin 330 is supported by the arm 326 slightly above the pressure contact portion. On the rear side of the leaf spring 328, a tape guide plate 331 extends downward on the arm 326, and on the lower side of the tilt central axis 327 of the arm 326 and on the front side of the tape guide plate 331, a side plate. The tape guide pin 332 is supported by 321 and one end 601 of the tape 600 fitted in the tape mounting disc 322 is the side plate 321.
It is inserted between the leaf spring 328 and the tape feed roller 329 via the upper tape guide pin 332a, the lower end of the tape guide plate 331, the tape guide pin 332, and the tape guide pin 332b on the arm 326. It is designed to be inserted between the feed pin 330 and the tip end 328a of the leaf spring 328. A tape pressing roller 333 is supported on the side plate 321 behind the plate spring 328.

On the outside of the side plate 321, there is a rotary solenoid 3 for tape feeding.
34 is attached to transmit the rotation to the tilt central shaft 327 of the arm 326. A one-way clutch 336 is fitted between the tape feed roller 329 and its rotation center shaft 335 so that the tape feed roller 329 rotates only in the direction of arrow e. The rotation center shaft 335 of the tape feed roller 329 is opposite to the gear center 33 of the tilt center shaft 327 of the arm 326.
It is linked through 7,338.

On the front side of the arm 326, the tilting rod 339 is attached to the side plate 321 on the shaft 340.
Is supported so that it can be tilted back and forth around the
Cutter 341 is installed at the upper end of tilting rod 339 that extends upward
Has been attached. Corresponding to this tilting rod 339, one end of a spring 342 is hooked on the side plate 321 and,
A stopper pin 343 is projectingly provided, and the other end of the spring 342 is connected to the tilting rod 339. Tilting rod 3 due to the bias
39 rotates in the direction of the arrow f and stops when it abuts the stopper pin 343. Engagement portions 344 and 345 are provided on the front side of the arm 326 and the base portion of the tilting rod 339, respectively. When the arm 326 rotates in the direction of arrow g as shown in FIG. The tilting rod 339 abuts the engaging portion 345 of the spring 342 against the biasing force of the spring 342.
The tape 600 is rotated in the direction of the arrow to cut the one end 601 of the tape 600 slightly behind the tip 328a of the leaf spring 328.

An article placement plate 346 is formed on the side plate 321 so as to extend in the front-rear direction, and its rear end portion is on the attachment plate 182b. The tip end 328a of the leaf spring 328, the tape feeding roller 329, the tape pressing roller 333, and the cutter 341 are located inside the article placing plate 346. The pivotal loci of the tip end portion 328a of the leaf spring 328 and the tape pressing roller 333 reach slightly above the article placing plate 346.

Sprockets 347 and 348 are fixed to the rotary shaft 319 and the rear rotary shaft 6 of the wrapping paper carrying conveyor 3 inside the left machine frame 1, respectively. The both sprockets 347 and 348 are interlocked by a chain 349 via sprockets 350 and 351. ing. When the rear rotation shaft 6 rotates and the left and right belt conveyors 8 of the wrapping paper conveyor 3 approach and separate from each other, the rotation shaft 319 rotates and the pair of left and right tape sticking mechanisms 3
The whole 18 approaches and separates from the center position 37a of the packaging portion 37 in the left-right direction.

It should be noted that the rotation shaft 319, the female screw member 320, and the like adjust the left-right spacing S318 of the left and right tape attaching mechanisms 318 with respect to the left-right center position 37a of the packaging unit 37 according to the left-right length L of the article 500. The chain 349 and the like constitute a mechanism that interlocks with the left and right belt conveyors 8 of the wrapping paper conveyor 3 to move to the left and right.

Regarding the drive system of each of the devices B and C, the article receiving mechanism 109 of the article supply device B described above will be described next.
Drive system for raising and lowering the central mounting rod 112, and a drive system for moving the front lower first folding plate 165 of the wrapping paper folding device C in the front-rear direction and other folding plates 167, 168, 16
9,170,171,172,173,174,175,176 actuation wires 250,20
A supplementary description will be given of the drive system for operating the 1,225, 273, and 237.

A rotating shaft 352 is supported between the rear lower parts of the left and right machine frames 1 and 2,
A pair of cam plates 353 and 354 are attached to the rotating shaft 352. The rotating shaft 352 is linked to the main motor 355 via a sprocket 356, a chain 357, and a sprocket 358. Adjacent to one cam plate 353, the lever 359 is
A cam roller (not shown) supported by a lever 359 is rotatably supported about 360, and is engaged with a cam plate 353. The lever 359 is connected to the upper end portion of the center mounting rod 112 via a rod 361. When the cam plate 353 rotates with the rotation of the main motor 355, the central mounting rod
112 moves up and down via lever 359 and rod 361.

Above the cam plates 353 and 354, the interlocking shaft 36 between the left and right machine frames 1 and 2
2 is rotatably supported, and levers 363 are supported at both ends of the interlocking shaft 362, and a cam roller (not shown) supported by one lever 363 engages with the cam plate 354. There is. An interlocking shaft 364 is rotatably supported between the front lower parts of the left and right machine frames 1 and 2, and the lever 191 is supported at both ends of the interlocking shaft 364, and the lever 191 and the lever 363 are connected to each other. Linked by link 365. When the cam plate 354 rotates with the rotation of the main motor 335, the front lower surface first folding plate 165 moves the lever 363 and the link 365.
And moves in the front-back direction via the lever 191.

A plurality of levers 366 are provided on the upper right side of the rotating shaft 352 and a shaft 367 is provided.
The wire 250, 201, 225, 273, 237 is connected to the tip of the lever 366 so as to be rotatable around the center.
A cam plate 368 is attached to the rotating shaft 352 corresponding to the lever 366, and a cam roller 369, which is pressed against the cam plate 368, is supported by the lever 366. And the main motor 355
When the cam plate 368 rotates with the rotation of the wire, the lever 366 tilts and operates the wires 250, 201, 225, 273, 273.

Regarding the interlocking of the devices A to E The above is the mechanical configuration of the paper packaging machine according to the present embodiment.
In particular, the lateral spacing S8 between the left and right belt conveyors 8 of the wrapping paper conveyor 3, the lateral spacing S410, S411 between the two folding rollers 410, 411, the lateral spacing S40 between the left and right article guide plates 40, and the article receiving mechanism 109. Left and right rear mounting rods 117 in the left and right direction spacing S117, left and right lower surface front second folding plates 167, 168 when folded in the left and right direction S167, left and right lower surface rear second folding plates 169,
170 spacing in the left-right direction when folded, S169 left and right front first folding plates 171 and 172 when folded in the left-right direction S171, left and right rear first folding plates 173 and 174 when folded in the left-right direction spacing S173, and left and right guide plates 199 and 248 in the left-right direction S199, S248, the left-right spacing S205 between the left and right paper pressers 205, the left-right spacing S317 between the left and right guide rods 317, the left-right spacing S between the left and right tape attaching mechanisms 318
When the position setting motor 31 is driven to adjust the lateral spacing S8 between the left and right belt transport units 8 in accordance with the horizontal length L of the article 500, the drive and movements of the both belt transport units 8 are transmitted. When the front mounting rod 124 of the article receiving mechanism 109 is spaced from the article stopper plate 163 in the front-rear direction M124, the lower second front folding plates 167 and 168 and the lower rear second folding plates 169 and 170 are folded. Front-rear spacing M167,16
8, front and rear first folding plates 171 and 172 and rear first folding plates 173 and 174 when folded back and forth direction spacing M171, M172, front second folding plate 175
And the second fold-back plate 176 on the rear face when folded back and forth M175
Are respectively adjusted by the position setting motor 132 to adjust the longitudinal distance M124 of the front mounting rod 124 in accordance with the longitudinal width W of the article 500, and at the same time, the drive is transmitted.
According to the height H of the article 500, the left and right front first folding plates 171,172
When folding, the left and right spacing S171, the left and right rear folding plates 17
When the lateral spacing S173 during folding of 3,174 is adjusted by driving the position setting motor 213, the driving is transmitted and the vertical spacing R313 with respect to the rear lower surface first folding plate 166 of the guide rods 313, 314 is also adjusted at the same time. It is characterized in that it is designed to be. And each interval S8, S410, S411, S
40, S117, S167, S169, S171, S173, S199, S248, S205, S317, S3
Move each part so that 18, M124, M167, M168, M171, M172, M175, R313 are set to the optimum dimensions according to the size of the article 500, that is, the length L in the left-right direction, the front-rear width W, and the height H. The mechanism is designed.

Electrical Configuration of Paper Wrapping Machine Next, the electrical configuration of the paper wrapping machine configured as described above will be described.

As shown in FIG. 31, a microcomputer 370 includes a central processing unit (hereinafter referred to as CPU) 371 as a control means and a program memory 3 including a read-only memory (ROM).
72 and a work memory 373 composed of a readable and rewritable memory (RAM), and is incorporated in a control box 374 shown in FIG. Then, the CPU 371 operates based on the control program stored in the program memory 372.

In the wrapping paper conveyor 3 of the wrapping paper feeder A, both front and rear rotating shafts 5 and 6 for supporting the left and right both belt conveyors 8
The position detecting potentiometer 38 (see FIG. 2) which is interlocked with the rear rotation shaft 6 of the rear side of the belt 500 is based on the length L of the article 500 in the left-right direction, and the space S8 in the left-right direction between the two belt conveyors 8 is Left-right spacing S410, S411 of both fold-providing rollers 410, 411 connected to both transport units 8, left-right spacing S40 of left and right article guide plates 40 attached to both belt transport units 8, articles of article supply device B Left and right rear mounting rods 1 in the cradle mechanism 109
17 in the left-right direction, S117 in the left and right front lower second folding plates 167, 168 in the wrapping paper folding device C, and the left-right rear lower second folding plates 169, 170 in the left-right direction S16.
9, the same as the left and right front folding plates 171,172 in the left-right direction
S171 and the left and right rear folding plates 173, 174 in the left-right space S
173, the distance between the left and right guide plates 199,248 in the left-right direction S199, S24
8, left and right paper presser 205 spacing in the left and right direction S205, left and right guide rods 317 in the package delivery device D in the left and right direction S317,
Also, a signal proportional to the left-right direction tape adhering mechanism 318 in the left-right direction spacing S318 is detected, and each detection signal is detected as described above.
It is designed to be input to the CPU 371.

In the article receiving mechanism 109 of the article supply apparatus B, a position detecting potentiometer 141 interlocked with the right rotation shaft 127.
(See FIG. 9) is based on the front-rear width W of the article 500, the front-rear rod 124 and the article stopper plate 163 have a front-rear spacing M124, a lower front second folding plate 167,168, and a lower rear second folding plate 169,170.
Front-rear spacing M167, M168, front-rear first folding plates 171 and 172 and rear first folding plates 173 and 174, front-rear spacing M171, M172, front-side second folding plate 175 and rear-side second folding plate 176 front-rear direction
A signal proportional to M175 is detected, and each detected signal is input to the CPU 371.

On the fixed support 193 side of the wrapping paper folding device C, a position detecting potentiometer 238 (first
17), based on the height H of the article 500, the left and right front first folding plates 171 and 172 have a left-right spacing S171 and the left and right rear first folding plates 173 and 174 have a left-right spacing S173, and the package delivery guide mechanism 279. Guide bar 313, 314 vertical spacing R313
Signal that is proportional to
It is designed to be input to U371.

The program memory 372 stores the optimum intervals S8, S410, S411, S40, S117, S167, S169, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171, S171. S173,
S199, S248, S205, S317, S318, M124, M167, M168, M171, M172,
Interval data S, M, R based on M175, R313 are stored in advance. An article size setting button 375 as a control box article size setting means is provided, and the CPU 371 calculates the sizes L, W, and H of the article 500 based on the input signal from the article size setting button 375, and the calculated article 500 Call the interval data S, M, R for the size L, W, H, the interval data S,
Each position setting motor 31,132,2 until M, R and the detection signals of the position detection potentiometers 38,141,238 match.
It is designed to drive 13.

When the light of the photoelectric switch 700 shown in FIGS. 9 and 12 is blocked by the front surface 503 side of the article 500 in the states of FIGS. 33 (b) and (c), the photoelectric switch 700 detects this, and The detection signal is input to the CPU 371. Based on this detection signal, the CPU 371 drives and controls the front-rear direction position setting motor 132.

In the wrapping paper feeding mechanism 4 of the wrapping paper supply device A, a paper size detecting potentiometer 63 (see FIG. 4) interlocking with the rear positioning plate 53 on the mounting bases 41, 42, and the mounting bases 41, 42. The paper size detection potentiometer 66 (see Fig. 4) that interlocks with both the left and right positioning plates 58, 59
A signal proportional to the size of 0 is detected, and the detected signal is the CPU
It is designed to be input to 371.

The program memory 372 stores in advance the optimum size of the wrapping paper 400 according to the sizes L, W, and H of the article 500. The control box 374 is provided with a display panel 376, and the CP
U371 calculates the size of the wrapping paper 400 based on the detection signals from the potentiometers 63 and 66, and calculates the size of the wrapping paper 400 based on the detection signal from the article size setting button 375. When both of the packaging papers 400 of both the mounting tables 41 and 42 are out of the range of the set size, the display panel 376 displays that they are out of the range and the set size.

The sensor 301 for detecting the tooth plate 300 and the sensor 302 (see FIG. 24) for detecting the pushing member 291 in the package pushing-out mechanism 278 of the package carrying-out device D are input to the CPU 371, and the CPU 371 causes the sensor 302 to push the pushing member. After detecting 291 the number of irregularities of the tooth plate 300 detected by the sensor 301 is counted. CPU371 is the tape attachment mechanism
The stopping position of the pushing member 291 is controlled so that the article 500 is stopped in a state where the tape attachment center Q of 318 corresponds to the center of the various articles 500 in the front-rear direction. That is, the program memory 372 stores in advance an optimum count number according to the front-rear width W of the article 500. The CPU 371 calculates the count number by the sensor 301, calculates the set count number based on the detection signal from the article size setting button 375, and when the count numbers match, stops the package extrusion driving motor 299. It has become.

In addition, the CPU 371 is configured to drive and control the paper packaging machine, as will be described later, based on the control program stored in the program memory 372.

Operation of Paper Wrapping Machine Next, the operation of the paper wrapping machine configured as described above will be described.

First, each part is set according to the size of the article 500.

That is, after turning on the power, the mode setting key switch
379 is switched to the driving side, and the article size setting button 375 is pressed to display the sizes L, W, and H of the article 500 on the display panel 376. Confirm that this display is correct and click the Start button 38.
When you press 0, the CPU 371 determines the size of the article 500 based on the signal.
Based on the interval data S, M, R stored in advance according to L, W, H, the respective intervals S8, S410, S411, S40, S117, S167, S169, S17
1, S173, S199, S248, S205, S317, S318, M124, M167, M168, M17
1, M172, M175, R313 are set automatically.

In this case, the CPU 371 uses the wrapping paper as described above based on the setting data stored in advance according to the sizes L, W, H of the article 500.
The size of 400 is selected, but when the wrapping paper 400 placed on the upper and lower loading tables 41, 42 of the wrapping paper feeding mechanism 4 of the wrapping paper feeder A is not within the set size range, the display panel 376 is displayed. An indication of that and the set size are displayed. In accordance with this, the worker follows the wrapping paper 400 on the upper and lower mounting tables 41, 42.
To replace. After the replacement, the warning displayed on the display panel 376 disappears, and the vehicle can be operated. When only one of the wrapping papers 400 on the upper and lower mounting tables 41, 42 is within the set size, the wrapping paper 400 within the set size can be used for operation. When any of the wrapping papers 400 is within the set size, the wrapping paper 400 can be operated using the smaller size.

Along with this article size input operation, the upper and lower mounting tables 41, 42 are set. That is, the switch 381 (control box 3
Since it is separate from 74, it is shown only in FIG. ),
In the wrapping paper feeding mechanism 4 of the wrapping paper supply device A, both upper and lower wire winding motors 51 and 52 are driven, and the upper and lower loading tables 41 and 42 are tilted upward via the upper and lower hanging wires 45 and 46.
Due to this tilting, the supporting member 79 is supported via the rotating roller 81.
Is pushed upward to rotate, and the limit switch 104 is pushed through the operating plate 105a and the operating rod 105b to be turned off.
As a result, the drive of the motors 51 and 52 is stopped,
The air cylinder 84 is driven to move the piston rod 84a downward, and the rotary roller 81 is pressed against the front end portions of the packaging paper 400 on the upper and lower mounting tables 41, 42. This completes the setting of the wrapping paper 400. In this set state, as shown in FIG. 34 (a), the front end portion of the wrapping paper 400 is the vertical portion of the pressing member 106.
While being in contact with 106a, it is pressed downward by the hook portion 106b.

Then, when the start button 382 is pressed, as shown in FIG. 12, first, the motor 149 is driven in the article conveyor 110 of the article supply apparatus B, and each chain 162 is rotated. Goods
When 500 is placed on the front end of each chain 162, the article 500 is conveyed in the direction of the arrow b while being guided by both article guide plates 40, and stopped at the highest position as shown in FIG. 33 (a). The article stand mechanism 109 comes into contact with the front mounting rod 124 and stops.
At this time, the article 500 pushes the limit switch 164. When the limit switch 164 is pushed, the main motor 355, the belt drive motor 24 of the wrapping paper conveyor 3 and the wrapping paper feeding motors 86, 87 (only one of them) of the wrapping paper feeding mechanism 4 are driven.

When the main motor 355 is driven, the loading rods 112, 117, 124 in the article receiving mechanism 109 of the article feeding apparatus B are moved up and down, and the folding plates 165, 166, 16 in the wrapping paper folding apparatus C are also moved.
7,168,169,170,171,172,173,174,175,176 are activated.

As shown in FIGS. 33 (b) and 33 (c), when the loading rods 112, 117, and 124 of the article receiving mechanism 109 are driven from the highest position to the lowest position by the drive of the main motor 355, the articles 500 are loaded. Table 1
It is conveyed onto 12, 117, and 124 and abuts on the article stopper plate 163 to stop.

In this stopped state, as shown in FIG. 33 (f), if the front-rear width W of the article 500 is larger than the set size and the error dW is outside the allowable range ΔW, the photoelectric switch is set by the front surface 503 side of the article 500. 700 is cut off, and its detection signal is sent to the CPU 371.

Based on the detection signal, the CPU 371 drives and controls the front-rear direction position setting motor 132, and the front-rear direction intervals M167, M168, M171, M172, M175 of the folding plates 167 to 176 are corrected by predetermined dimensions.
It grows to fit the article 500. At this time, the front-to-back direction interval M124 of the front mounting rod 124 of the article receiving mechanism 109 is also corrected.
In this embodiment, the maximum and minimum range of the error dW of the article 500 (paper box) is taken into consideration, and a certain dimension slightly larger than that is specified and corrected.

Motors 86,87 of the wrapping paper feeding mechanism 4 of the wrapping paper supply device A
When is rotated, as shown in FIG. 34 (b), the rotating roller 81 first rotates in the direction opposite to the feeding direction h, and only the front end of the uppermost wrapping sheet 400 is removed from the hook portion 106b of the pressing member 106. It is pulled out and then rotated as shown in Fig. 34 (c).
81 rotates in the feeding direction h and only the uppermost wrapping sheet 400 is fed. At this time, air is blown from the air ejection nozzle 107 (see FIG. 6) to the front end of the wrapping paper 400. The wrapping paper 400 reaches the rear end of the wrapping paper transport conveyor 3 through the guide passages 73, 74 and 78. Here wrapping paper 400
When the sensor 108 detects the front end portion of the, the piston rod 84a of the air cylinder 84 moves upward, the supporting member 79 also moves upward, and the rotating roller 81 separates from the wrapping paper 400. The wrapping paper 400 is sandwiched between the upper and lower conveyor belts 22 and 23 of the left and right belt conveyors 8 of the wrapping paper conveyor 3 and conveyed to the wrapping section 37. During the transportation, both sides of the wrapping paper 400 pass between a pair of both fold-giving rollers 410 and 411, and are sandwiched by the concave groove 412 and the ridge 413 at the time of passage, and a fold 415 along the transportation direction a is shown in FIG. ) As shown in FIG. 4), the wrapping paper 400 is attached to both sides of the wrapping paper 400 from the front end to the entire rear end. The CPU 371 stores in advance the number of drive pulses of the belt drive motor 24 of the wrapping paper transport conveyor 3 in accordance with the front-rear width W of the article 500 and the size of the wrapping sheet 400 in the front-rear direction. The wrapping paper 400 stops at the set position of the wrapping section 37 above the article 500 which is resting on the respective mounting rods 112, 117 and 124 of 109 and is stopped. In this stopped state, both folds 415 of the wrapping paper 400 are located right above both corners T of the upper surface 501 of the article 500 along the transport direction a of the wrapping paper 400.

After that, as shown in FIGS. 33 (d) and (e), when the respective mounting rods 112.117.124 of the article receiving mechanism 109 are raised,
500 rises along the article stopper plate 163, and the upper and lower conveyor belts 2 of the left and right belt conveyors 8 of the wrapping paper conveyor 3
The upper surface 501 of the article 500 comes into contact with the wrapping paper 400 that is sandwiched between 2 and 23 and is waiting in the wrapping unit 37, and the wrapping paper 400 is lifted. At this time, as shown in FIG.
Both corners T of the upper surface 501 of the article 500 along the conveyance direction a of 400 are surely aligned with both folds 415 of the wrapping paper 400. Therefore,
Since both ends of the wrapping paper 400 do not come out evenly between the pair of both conveying belts 22 and 23, the wrapping paper 400 has one of the two conveying belts 22,
Even if it tries to shift to the 23 side, both folds 415 are locked to both corners T of the article 500, and the shift can be prevented. Further, both the left and right parts of the wrapping paper 400 are conveyed between the left and right belt conveyance parts 8 of the wrapping paper conveyance conveyor 3 between the paper retainer 205 and the left and right side surfaces 505 and 506 of the article 500 while the left and right belts are conveyed. It comes off between the upper and lower conveyor belts 22 and 23 of the section 8. In this state, the lateral movement of the article 500 is restricted by the left and right guide plates 199 and 248.

Shortly before the loading rods 112, 117, and 124 of the article receiving mechanism 109 start to rise from the lowest position, the front and rear lower surface first folding plates 165, 16
6 open to each other from the closed position. The front and rear lower surface first folding plates 165, 166 are completely opened just before the respective mounting rods 112, 117, 124 reach the highest position.

Then, the left and right front first folding plates 171 and 172 and the left and right rear first folding plates 173 and 174 are inserted along the front surface 503 and the rear surface 504 from the lower corners of the front surface 503 and the rear surface 504 of the article 500 toward the inside obliquely upward. As shown in FIG. 23 (a), when the mounting rods 112, 117, 124 are in the highest position, the slanted folding edges 222a, 259a extend obliquely inward and downward from the upper corners T of the front surface 503 and the rear surface 504. Stop at. After the left and right front first folding plates 171 and 172 and the left and right rear first folding plates 173 and 174 have begun to enter the article 500, immediately before the respective mounting rods 112, 117 and 124 reach the highest position, the left and right lower front portions are folded second. Board 16
7,168 and the second rear folding plate 169,170 on both left and right lower surfaces is the article 500
Starts to enter along the front part of the lower surface 502 and the rear part of the lower surface 502, and when each of the mounting rods 112, 117, 124 reaches the highest position, the entrance is temporarily stopped, and the article 500 is left and right lower surface front love 2 folding plates 167, 168. And left and right underside rear second folding plates 169,170
Can be placed on top. Therefore, the mounting rods 112, 117, 124 start to descend. The above-mentioned folding in progress is shown in FIG. 35 (b).

With this lowering, the front second folding plate 175 and the rear second folding plate 176 start to approach toward the front surface 503 and the rear surface 504 of the article 500. When the front second folding plate 175 and the rear second folding plate 176 contact the front surface 503 and the rear surface 504 of the article 500 through the left and right front first folding plates 171, 172 and the left and right rear first folding plates 173, 174, both front and rear The first lower surface folding plates 165 and 166 start to close each other from the most opened state. Immediately after the front second folding plate 175 and the rear second folding plate 176 contact the front surface 503 and the rear surface 504 of the article 500, the left and right front first folding plates 171 and 172 and the left and right rear first folding plates 173 and 174 start to open, and Front lower second folding plates 167, 168 and left and right lower rear rear second folding plates 1
69 and 170 start to further enter from the stopped state, and the entry stops immediately after the left and right front first folding plates 171 and 172 and the left and right rear first folding plates 173 and 174 are completely opened. FIG. 35 (c) shows the above-mentioned state in the middle of folding.

Immediately before the front and rear lower surface first folding plates 165 and 166 are completely closed, the left and right lower surface front second folding plates 167 and 168, the left and right lower rear surface second folding plates 169 and 170, the front second folding plate 175 and the rear second folding plate 176. Starts to open, and the front and rear lower surface first folding plates 165 and 166 are completely closed and are simultaneously opened. The above-mentioned state in the middle of folding is shown in FIG.

Each of the loading rods 112, 117, 124 is at the lowest position in the middle of this folding, and the article 500 is placed on them as described above, and the packaging paper 400 is conveyed to the packaging section 37.

The article 500 in which the wrapping paper 400 is folded in this manner is in the closed state as shown in FIG.
Mounted on 5,166. In this state, the package extrusion mechanism 2
When the motor 299 of 78 is driven to rotate the chain 286, the pushing member 291 is detected by the sensor 302, and then the packaged article is
Move backwards towards 500. In the wrapping portion 37, the placing portion 293a of the pushing member 291 enters the lower surface of the packaged article 500 and puts it on the pushing arm 292 of the pushing member 291.
Pushes the packaged article 500 backwards. With the movement of the pushing member 291, the front and rear lower surface first folding plates 165 and 166 are opened, and the packaged article 500 is placed on the left and right sides of the pushing member 291 also on the rear lower surface first folding plate 166.

In this way, the packaged article 500 has the placement portion 29 of the pushing member 291.
While being placed on the lower surface first folding plate 166 on the side 3a and the rear side, it is pushed backward by the pushing arm 292 of the pushing member 291. Then, each guide rod 31 of the package delivery guide mechanism 279
It is guided to the upper side of both the left and right tape adhering mechanism 318 by 3,314 and 317, and the motor 299 of the package pushing-out mechanism 278 stops and stops at the tape adhering center Q on both the left and right placing plates 346. The rear lower surface first folding plate 166 stops in front of the placing plate 346.

In this state, when the tape feeding rotary solenoid 334 of the left and right tape adhering mechanism 318 is driven, the arm 326 tilts in the direction of arrow g as shown in FIG.
Tape feed roller 329 rotates in the direction of arrow e, and leaf spring 328
One end 601 of the tape 600 protruding from the tip end 328a of the tape contacts the left and right sides of the lower surface 502 of the packaged article 500 and is pressed by the tape pressing roller 333.
It is sequentially attached to the lower surface 502 of the packaged article 500 while being supported by 333. At this time, the tape 600 is attached to the tape guide plate 3
While being pressed by 31, the tape feed roller 329 is rotated and pulled out from the tape mounting disk 322. When the engaging portion 344 of the arm 326 comes into contact with the engaging portion 345 of the cutter tilting rod 339, the cutter tilting rod 339 tilts in the direction opposite to the arrow f against the bias of the spring 342, and the tip end portion of the leaf spring 328. The other end of the tape 600 is cut by the cutter 341 at 328a. One piece of tape on each of the left and right sides of the lower surface 502 of the packaged article 500
602 is affixed, leaving its cut end 603.

After the tape is attached, the motor 299 of the package extruding mechanism 278 is driven again, and the packaged article 500 is extruded rearward by the extruding member 291 and conveyed to the discharge conveyor 420. At this time, the cut end portion 603 of the tape piece 602 is also pressed against the lower surface 502 of the packaged article 500 by the tape pressing roller 333, so that the tape piece 602 is completely attached to the lower surface 502 of the packaged article 500 as shown in FIG. It is attached.

At the time of this unloading, folding of the wrapping paper 400 with respect to the next article 500 has already been completed, and this wrapping article 500 is similarly carried out.

When the application of the tape 600 is completed, the state returns to the state shown in FIG. 27, but at this time, the tape feed roller 329 does not rotate due to the action of the one-way clutch 336, and the tape 600 is not delivered. The tape 600 is pulled out from the tape mounting disc 322 by pressing the tape guide plate 331.

Although continuous operation is performed in this way, the control box 37
When the stop button 383 of 4 is pressed, the operation of the packaging machine is stopped.
In this cycle stopped state, the loading rods 112, 117, 124 of the article receiving mechanism 109 are stopped at the highest position, and in the wrapping paper folding device C, the front and rear lower first fold plates 165, 166 and the front and rear double-sided plates. The second folding plates 175 and 176 are opened to each other, and the front and rear both sides are first.
The folding plates 171, 172, 173, 174 are completely closed, and the second folding plates 167, 168, 169, 170 on the lower and front parts are stopped in a slightly closed state. At this time, the wrapping paper 400 is
As shown in Fig. 35 (b), it is in the process of being folded. This article
The 500 is carried out in a packaged state by pressing the discharge manual button 384 of the control box 374.

The control box 374 has a wrapping paper 4 in the wrapping section 37.
Paper feed adjusting knob 38 for manually adjusting the stop position of 00
5, the wrapping paper feeding reverse rotation adjusting volume 386 for manually adjusting the reverse rotation time of the rotating roller 81 when the wrapping paper 400 is fed out
Etc. are provided.

Particularly in the present embodiment, the error dW of the front-back width W of the article 500 is
Depending on the spacing of each folding plate 167 ~ 176 M167, M168, M171, M172,
Since the M175 can be corrected, the front and rear width W of the article 500
Is larger than the set size, the folding edge 259a of the inclined portion 259 of the front first folding plates 171, 172, 173, 174 of the front and rear double-sided first folding plates 171, 172, 173, 174 does not collide with the front surface 503 side of the article 500. It is possible to prevent damage. Also, the optimum spacing M167, M1 according to the front-rear width W of the article 500
Since it can be folded with 68, M171, M172, M175, good packaging condition is obtained.

[Other Embodiments] Other than the above-described first embodiment, although not shown, the following configuration may be adopted.

(A) In the first embodiment, the interval correction is illustrated when the front-rear width of the article 500 is too larger than the set size, but conversely, when it is too small, it is detected by the photoelectric switch (not shown). To correct the interval. That is, the article
If the error in the front-rear width W of 500 is within the allowable range, the light of the photoelectric switch is blocked by the front surface 503 side of the article 500, but if it is outside the allowable range, the light is not blocked, and the photoelectric switch turns this off. To detect. Then, based on the detection signal,
CPU371 drives and controls the front-rear direction position setting motor 132,
Distance between the folding plates 167 to 176 and the front mounting rod 124 in the front-rear direction M167, M1
68, M171, M172, M175, M124 are corrected by the specified size,
It becomes smaller according to 500. Therefore, wrapping paper 400
It can be wrapped with a tension to 0, and wrinkles are eliminated to obtain a good packaging state.

(B) In the first embodiment and the above (a), since the photoelectric switch also moves back and forth due to the interval correction, the correction usually eliminates the detection signal by the photoelectric switch, but if the detection signal remains after the correction, The error is outside the allowable range. Therefore, if there is a photoelectric switch detection signal after correction, the packaging machine is stopped, and if there is no photoelectric switch detection signal after correction, the packaging machine continues to operate.

(C) In the first embodiment described above, only the interval correction according to the front-rear width W of the article 500 is performed, but the time correction according to the horizontal length L of the article 500 is also performed. That is, the lateral spacing S40 between the two article guide plates 40 shown in FIGS. 2 and 12 is adjusted according to the lateral length L of the article 500. When a limit switch is installed and both the left and right side surfaces 505 and 506 of the article 500 passing between the article guide plates 40 actuate the maximum error detection both limit switches or the minimum error detection both limit switches, this is detected and the interval is corrected. .

(D) Although the above-mentioned embodiment exemplifies the paper wrapping machine, it is also applied to the film wrapping machine.

EFFECTS OF THE INVENTION According to the present invention, it is possible to correct the interval between the folding members that is preset based on the set size of the article 500 according to the size error of the article to be supplied 500, and thus the article to be supplied 500 in particular.
When is larger than the set size, the folding member does not collide with the article, and the article is prevented from being damaged.
Further, the supply article 500 can be folded at optimal intervals according to the size, and a good packaging state can be obtained. Moreover, when the size error is within the allowable range, the articles 500 that are continuously supplied can be sequentially packaged at the same intervals without correcting the intervals of the folding members one by one, so that the packaging work can be quickly processed. You can

[Brief description of drawings]

FIG. 1 is a schematic plan view showing the entire paper wrapping machine according to this embodiment, FIGS. 2 to 8 show a wrapping paper supply device, and FIG. 2 is a partially cutaway plan view showing a wrapping paper conveyor. 3 (a) is a partially cutaway right side view, and FIG. 3 (b) is a second view.
Partial plan view of the drawing, FIG. 3 (c) is XX of FIG. 3 (b).
FIG. 3 (d) is a partial enlarged cross-sectional view seen from the line, FIG. 3 (d) is a partial plan view showing a state in which the wrapping paper is folded, and FIG. 3 (e) is a third view showing the state in which the article lifts the wrapping paper. FIG. 4 is a partially cutaway plan view showing the wrapping paper placing table in the wrapping paper feeding mechanism, and FIG. 5 is a partially cutaway right side view of the same.
FIG. 6 is a right side view of a part of the wrapping paper feeding mechanism showing a part of the wrapping paper conveyance guide, FIG. 7 is a right side view of a part of the wrapping paper cutaway, and FIG. A partially cutaway rear view of the guide portion, FIGS. 9 to 13 show the article supply device, FIG. 9 is a partially cutaway plan view showing the article receiving mechanism, and FIG. 10 shows a part of FIG. Partially cutaway right side view, FIG. 11 is a partially cutaway front view showing a part of FIG. 9, FIG. 12 is a partially cutaway plan view showing an article conveying conveyor, and FIG. 13 is a part of FIG. Partially cutaway right side view, FIGS. 14 to 23 show the wrapping paper folding device, FIG. 14 is a partially cutaway plan view showing the front and rear lower first fold plates and the tape sticking mechanism, and FIG. 15 is 14 is a partial plan view of FIG. 14, FIG. 16 is a partially cutaway plan view showing a second folding plate on the front and rear both sides, a first folding plate on both front and rear sides, a second folding plate on both front and rear sides, and a package unloading device. 7 is a partially cutaway front view showing the lower rear second folding plate, the rear first folding plate and the rear second folding plate, FIG. 18 is a partially cutaway right side view of FIG. 17, and FIG. 19 is
17 is a partial plan view of FIG. 17, FIG. 20 is a partially cutaway front view showing the lower front part second folding plate, the front first folding plate and the front second folding plate, and FIG. 21 is the partially cutout right side of FIG. Plan view, Figure 22 is Figure 20
23A, 23B, 23C, 23D, and 23D are operation explanatory views showing the position adjustment of the front and rear double-sided first folding plates due to changes in the left-right direction length and height of the article, 24 to 26 show a package unloading device, FIG. 24 is a partially cutaway right side view showing a package unloading mechanism, and FIG. 25 is a partially cutaway front view showing a package unloading guide mechanism. FIG. 26 is a partially cutaway right side view of FIG. 25, FIGS. 27 to 29 show a tape sticking device, and FIG. 27 is a partially cutaway right side view showing one tape sticking mechanism, 28. The figure is a partially cutaway rear view, FIG. 29 is a view equivalent to FIG. 27 showing the tape adhering action, FIG. 30 is a partially cutaway plan view showing the drive system of each device, and FIG. 31 is an electric block circuit diagram. , Fig. 32 is a front view showing the control box, and Fig. 33 (a) (b) (c).
(D) and (e) are operation explanatory views showing respective steps until the article is supplied to the packaging section, FIG. 33 (f) is an operation explanatory view showing error determination of the front-rear width of the article, and FIG. 34 (a) (B) and (c) are explanatory views of the action of feeding the wrapping paper one by one, and FIGS. 35 (a) and (b).
(C) (d) is a perspective view which shows the folding procedure of the wrapping paper with respect to an article. A: wrapping paper supply device, 3 ... wrapping paper conveyor, 4
...... Wrapping paper feeding mechanism, 5,6 ...... Rotating shaft, 7 ...... Female screw member, 8 ...... Belder transport unit, 10 ...... Female screw member, 24 ......
Wrapping paper transport belt drive motor, 31 …… Beam transport unit left / right position setting motor, 35 …… Interlocking chain, 37 …… Packing unit, 37a …… Horizontal center position, 38 …… Position meter for position detection, 40 …… Item guide plate, 41,42 …… Standing table, 53,58,59 …… Positioning plate, 63,66 …… Paper size detection potentiometer, 73,74,78 …… Guide passage, 79…
… Supporting member, 81 …… Rotating roller, 84 …… Air cylinder for holding wrapping paper, 86,87 …… Motor for feeding wrapping paper, 104 ……
Limit switch, 106 ... Pressing member, 107 ... Air jet nozzle, B ... Item supply device, 109 ... Item cradle mechanism, 1
10 …… Article transport conveyor, 112 …… Center mounting rod, 114,115
…… Support rod, 116 …… Support block, 117 …… Back mounting rod, 119 …… Slide shaft, 121 …… Slide plate, 121a ……
Connecting plate, 122 …… Guide roller, 123 …… Slide plate, 12
4 …… Front mounting rod, 126,127 …… Rotating shaft, 128 …… Female screw member, 129 …… Movement plate, 131 …… Guide roller, 132 …… Front mounting rod Front-back direction position setting motor (folding member interval) Adjusting means), 136 ... interlocking chain, 141 ... position detecting potentiometer, 149 ... article transport drive motor, 162 ... transport chain, 163 ... article stopper plate, 164 ... limit switch, C ... Wrapping paper folding device, 165 ... front lower surface first folding plate, 166 ... rear lower surface first folding plate, 167 ... left lower surface front second folding plate, 168 ... right lower surface front second folding plate, 1
69 ... left rear lower second folding plate, 170 ... right lower rear rear folding plate, 171 ... left front first folding plate, 172 ... right front first folding plate, 173 ... left rear rear folding Board, 174 ……
Right side 1st folding plate, 175 …… Front 2nd folding plate, 176 ……
Rear second folding plate, 193 ... Rear fixed support, 194,195 ...
Support member, 197 ... Connecting plate, 198 ... Support block, 199
…… Guide plate, 203 …… Coupling plate, 204 …… Mounting frame, 205…
… Paper retainer, 211 …… Drive shaft, 213 …… Folding plate position setting motor, 216 …… Belt, 217 …… Slider, 222 …… Slanted part, 222a …… Folding edge, 226 …… Screw rod, 227 ...... Female thread, 228,229 ...... Gear, 230 …… Bracket, 238 …… Position meter for position detection, 241 …… Front movable support, 243,244 …… Supporting member, 246 …… Coupling plate, 247 …… Support block , 248 …… Guide plate, 249 …… Slider, 252,
254 …… Interlocking plate, 259 …… Slanted part, 259a …… Folding edge, 260
…… Screw rod, 261 …… Female thread, 262,264,265 …… Gear,
263 ... Shaft, 266 ... Bracket, 274 ... Shaft, 276 ... Female screw member, D ... Package delivery guide mechanism, 291 ... Extrusion member, 299 ... Package extrusion drive motor, 304 ... Screw rod , 310 …… Female thread member, 313,314,317 …… Guide rod, E
…… Tape attachment device, 318 …… Tape attachment mechanism, 319 ……
Rotating shaft, 320 ... Female screw member, 322 ... Tape mounting disk,
326 ... arm, 327 ... axis, 328 ... leaf spring, 329 ... tape feed roller, 333 ... tape pressing roller, 334 ... tape feed rotary solenoid, 339 ... cutter tilting rod, 341 ... cutter , 344, 345 …… Engagement part, 349 ……
Chain, 355 ... Main motor, 370 ... Microcomputer, 371 ... Central processing unit as control means (CP
U), 372 ... Program memory, 375 ... Item size setting button (item size setting means), 376 ... Display panel, 400 ... Wrapping paper as packaging material, 410, 411 ... Folding roller, 412 ... Concave Grooves, 413 ... ridges, 415 ... folds, 420 ... Ejection conveyor, 500 ... Article, 600 ... Tape, 700 ... Photoelectric switch (error determination means), P ... Packaging reference position.

Claims (1)

[Claims] 1. A packaging material folding device of a packaging machine, wherein a space between folding members for packaging an article (500) with a packaging material (400) can be adjusted and set in advance based on a set size of the article (500). An article size setting means (375) for presetting the size of the article (500) to be wrapped before the packaging, and an interval between the folding members is adjusted and set before the packaging based on the size set by the article size setting means (375). Only when it is determined that the size error of the article (500) actually supplied with respect to the size set by the folding member interval adjusting means (132) and the article size setting means (375) is outside a predetermined allowable range. An error discriminating means (700) for outputting, and a control means (371) for driving and controlling the folding member interval adjusting means (132) based on a signal from the error discriminating means (700) to correct the spacing between the folding members. Having A packaging material folding device in a packaging machine.