JPS63672Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a folding device for sheets, and is capable of folding sheets such as garbage bags into four along the longitudinal direction thereof. This is the purpose.

That is, in the present invention, a long hole-shaped insertion opening is provided in the middle position of the table, and a pair of left and right rollers are provided oppositely to each other with the insertion opening in between on the lower side of the table, and an insertion plate is installed between the two rollers. is provided so that it can be entered in the vertical direction, while another roller is provided in correspondence with the upper and lower sides of one of the above two rollers, and an insert plate is provided between both rollers slightly relative to the above insert plate. The gist of this is that it is constructed in such a way that it can be accessed with a time delay.

Hereinafter, specific embodiments of the present invention will be described with reference to the illustrative drawings.

A indicates the machine frame. Aircraft frame A has lower frame 1 and upper frame 1'
It is formed by stacking two layers. A table 3 for placing sheets is provided at the top of the frame 1'. The table 3 is divided into a pair of front and rear top plates 3', 3'', so that a sheet insertion slot 4 is provided between the two top plates 3', 3'', that is, at an intermediate position of the table 3. The hole is formed in a long hole shape extending in the width direction.

B shows a conveyance mechanism provided below the top plate 3'.
The transport mechanism B is composed of a pair of upper and lower transport bodies. Reference numerals 5' and 6' denote a pair of left and right support shafts constituting the upper conveying body, 5 and 6 refer to rollers that are freely rotatably supported via both support shafts 5' and 6', and 7 refer to both of the above-mentioned rollers 5. , 6 is shown.
Reference numerals 9' and 10' denote a pair of left and right support shafts constituting the lower conveying body, and 9 and 10 indicate rollers that are supported via both support shafts 9' and 10'. The above rollers 5 and 6 are provided so as to correspond to the upper and lower phases. And 11 is both rollers 9, 1
2 shows a conveyor belt stretched over a distance of 0. Both conveyor belts 7 and 11 are provided with their corresponding surfaces in close contact with each other, so that a conveyor section 12 is formed between them. Reference numerals 8 and 8 denote a pair of upper and lower auxiliary rollers provided at the leading end in the feeding direction of the conveying section 12;
Reference numerals 38 and 38 indicate auxiliary conveyor belts stretched between the auxiliary rollers 8 and 5 and the rollers 5 and 9, respectively. On the lower side of the top plate 3'', a feed roller 2 is provided so as to correspond to the roller 6 located on the carry-in side among the rollers 5 and 6 constituting the upper conveying body. That is, both rollers 6, 2 is outlet 4
It is arranged so that it exists between the two sides and is provided oppositely on both the left and right sides thereof. Note that 2' indicates protrusions provided at regular intervals on the outer circumferential surface of the feed roller 2 in correspondence with the conveyor belt 7.

13 is a motor placed on the base of the lower frame 1;
Reference numeral 4 denotes an intermediate shaft provided so as to be interlocked with the motor 13 through a belt transmission mechanism 15 with an appropriate reduction ratio. The intermediate shaft 14 is interlocked with a support shaft 9' constituting the lower conveying body in the conveying mechanism B through a belt transmission mechanism 16, so that the conveying mechanism B is driven. , intermediate shaft 14
The lower frame 1 is connected to the lower frame 1 via the other belt transmission mechanism 17.
The clutch 18 is configured to be interlocked with the input shaft side of the clutch 18, which is placed on the base of the clutch 18.

Reference numeral 19 indicates a crankshaft that is horizontally suspended within the lower frame 1 in both width directions. The crankshaft 19 is interlocked with the output shaft side of the clutch 18 through a chain transmission mechanism 20, so that it can be driven intermittently through the disconnection action of the clutch 18.
A gear 28 is mounted on the crankshaft 19, and crank plates 21, 21 are provided at both ends thereof, and crank rods 22, 22 are connected to both crank plates 21, 21.
22 is configured to extend toward the upper frame 1'.
Reference numerals 23 and 23 denote a pair of left and right slide rods which are provided so as to be able to rise and fall freely at both ends in the width direction with the table 3 in between. It is made to be pivotally connected. That is, both slide rods 23, 23 are provided so as to be able to be raised and lowered via a crank mechanism. 24, 24 are horizontal rods connected to the upper ends of both slide rods 23, 23, both horizontal rods 24,
The insertion plate 25 is fixed downwardly between the tip portions of the two. The insert plate 25 is provided so as to be on the same line as an extension line rising vertically from the contact point a of the rollers 6, 2, and the tip of the insert plate 25 is provided with a conveyor belt 7 as shown in FIG. By providing a notch corresponding to the tension position of the slide rod 2, the lower edge 25'
The rollers 6 and 2 are provided in such a way that they can be lowered to the contact point a of the rollers 6 and 2 through the lifting and lowering action of the rollers 3 and 23. Reference numeral 26 indicates an entrainment prevention rod provided in the vicinity of the roller 6, and 27 indicates an entrainment prevention lever provided in the vicinity of the roller 10. Reference numeral 29 indicates a crankshaft provided in correspondence with the above-mentioned crankshaft 19.

30 is a scale plate fixed to the crankshaft 29;
Numeral 31 is a gear fixed to the scale plate 30 so that its mounting angle can be freely adjusted, and the gear 31 is configured to mesh with a gear 28 mounted on the crankshaft 19 side. And both gears 28,
The rotation of the crankshaft 19 is transmitted to the crankshaft 29 through the meshing action of the crankshaft 31. Nao 32,
Reference numeral 32 indicates a long hole for adjusting the mounting angle provided in the gear 28, and reference numerals 33 and 33 indicate the same tightening screws.

A crank rod 34 is extended from the crankshaft 29 toward the upper frame 1'. 36 is a fulcrum shaft rotatably supported across both width directions of the upper frame 1', and a connecting rod 39 is attached to the fulcrum shaft 36.
The upper end of the crank rod 34 is pivotally connected to one end of the connecting rod 39, while a pair of left and right arms 35, 35 are attached to both ends of the fulcrum shaft 36.
Make it so that it sticks. The arms 35, 35 have a horizontal rod portion and an inclined rod portion that extends diagonally upward from the tip of the horizontal rod portion, and are formed in an inverted shape, with one end of the horizontal rod portion extending diagonally upward. By fixing it to the fulcrum shaft 36, it can swing freely in the vertical direction, and an insert plate 37 is fixed between the tips of the inclined rod parts. The insertion plate 37 has its tip 37' connected to both the rollers 6,
It is provided diagonally upward so as to face the direction of the contact point b of 10, and its tip is provided so that it can enter up to the contact point b position.

C is a feeding mechanism for sheets that are carried out from the conveying mechanism B in a four-folded state,
The feeding mechanism C is arranged to enable intermittent feeding in conjunction with a counter (not shown). That is, it is provided so that the sheets fed out from the conveyance mechanism B can advance one stroke when the number reaches a preset number.

Next, its effect will be explained.

When the motor 13 is started with a sheet such as a garbage bag placed on the table 3, its driving force is transmitted to the intermediate shaft 14 via the belt transmission mechanism 15. be. The driving force transmitted to the intermediate shaft 14 is transmitted via the belt transmission mechanism 16 to the support shaft 9' constituting the lower conveying body, thereby rotating the roller 9. Through the drive, a state is obtained in which the belt 11 of the conveying body rotates in the direction of arrow c. The rotating motion of the belt 11 in the direction of arrow c is transmitted to the upper conveying body, and a state is obtained in which the belt 7 rotates in the direction of arrow c'.
Also, each of the rollers 5, 6, 9, and 10 can be rotated in the direction of the arrow, and the feed roller 2 can be rotated in the direction of the arrow through the rotation of the roller 6 in the direction of the arrow. It is.

On the other hand, the driving force transmitted to the intermediate shaft 14 is also transmitted to the input shaft side of the clutch 18 via the belt transmission mechanism 17.

However, in the above state, if the clutch 18 is operated to connect via an appropriate switch mechanism, the driving force on the input shaft side of the clutch 18 is transmitted to the output shaft side, and the chain transmission mechanism 2
0 to the crankshaft 19.

In other words, the driving force is transmitted to the crankshaft 19 as an intermittent drive for each revolution through the engagement and disengagement of the clutch 18 by the limit switch. Therefore, one rotation of the crankshaft 19 is made by the crank plate 2.
1, 21, and the crank mechanism formed by the crank rods 22, 22, the movement is converted into a reciprocating motion in the vertical direction and is transmitted to the slide rod 23. That is, one revolution of the crankshaft 19 is transmitted as one stroke of reciprocating motion on the slide rod 23 side, in which the slide rod 23 descends from the raised position and returns to the raised position again. As the slide rod 23 is lowered from the raised position, the insertion plate 25 fixed to the tips of the horizontal rods 24, 24 will also be lowered. The sheets in this state are pushed into the insertion slot 4 in a folded state through the lowering action of the insertion plate 25. Then, when the insertion plate 25 is lowered to the point of contact between the rollers 6 and 2, the insertion plate 25 moves to the upward stroke and rises to the old position. The sheets pushed to the contact position are folded in half and drawn downward through the rotational action of both rollers 6 and 2.

On the other hand, the intermittent drive of the crankshaft 19 for each rotation is transmitted to the crankshaft 29 through the meshing action of the gears 28 and 31. The one-turn intermittent drive of the crankshaft 29 is replaced by one stroke of reciprocating movement in the vertical direction via the crank rod 34, but as the crank rod 34 descends, the tip of the arm 35 The insertion plate 37 to be fixed has both rollers 6,
This results in rotation in the direction of the contact point b between 10 and 10. Thus, by adjusting the mounting angle of the gear 31 with respect to the scale plate 30, the crank rod 34 on the crankshaft 29 side is adjusted in response to the downward movement of the crank rod 22 on the crankshaft 19 side. By slightly delaying the timing of the descending action, the sheets can be moved by both rollers 6,
When the insert plate 37 is drawn in between the rollers 2 and lowered, it is possible to obtain the effect of rotating the insertion plate 37 toward the contact point between the rollers 6 and 10.

That is, for the sheets that are coming down between both rollers 6 and 2 in a half-folded state through the rotating operation of the insertion plate 37, the intermediate position is moved to the contact point b between both rollers 6 and 10. It can be pushed. That is, by pushing the middle position of a sheet folded in half into a half-folded state, a four-fold state can be obtained.

The insert plate 37 that has entered the point of contact b between both rollers 6 and 2 returns to its old position again through the upward stroke of the crank rod 34, but the insert plate 37 is inserted between both rollers 6 and 10 via the insert plate 37. The sheets pushed to the contact position are folded into four and transported between the transport sections 12 toward the leading end, and the sheets transported through the transport section 12 to the leading end are folded into four and transported to the forward end by the feeding mechanism. It will be sent onto C.

In the above embodiment, the sheets fed in a folded state between the rollers 6, 2 are fed in a folded state between the conveying section 12 of the conveying mechanism B, but in order to obtain a folded state in four, a minimum of three rollers 6, 2, 10 is sufficient, and a belt conveying mechanism is not necessarily required.

The present invention is constructed as described above.
As mentioned above, an elongated hole-shaped insertion port 4 is provided at the middle position of the table 3, and a pair of left and right rollers 6, 2 are provided in a relative manner on the lower side of the table 3, with the insertion port 4 between them. An insert plate 25 is provided between the rollers 6 and 2 so as to be movable back and forth, and sheets placed on the table 3 are folded in half through the insertion action of the insert plate 25 between the rollers 6 and 2. While pulling in between both rollers 6, 2, another roller 10 is connected to the roller 6.
are provided in correspondence with the upper and lower rollers, and another insert plate 37 is installed between the rollers 6 and 10.
5, the insert plate 37 is provided so as to be able to move forward and backward with a slight time delay, and through the action of entering between the rollers 6 and 10 of the insertion plate 37, the two rollers 6 and 2 are folded in half as described above. By pushing the middle part of the descending sheets in a two-fold state between both rollers 6 and 10, the sheet can be folded in four in the longitudinal direction. became possible. In particular, in the case of the present invention, in addition to a pair of upper and lower rollers 6, 10 that stretch one end of the conveyor belts 7, 11 that are arranged vertically opposite each other, another roller 2 is provided oppositely to the roller 6 located above the upper and lower rollers 6, 10. By inserting the insertion plates 25, 37 between the pair of front and rear rollers 6, 2 and the pair of upper and lower rollers 6, 10, folding is performed. , 2 can perform two consecutive folds, and a pair of upper and lower rollers 6, 1
0 is a roller that stretches one end of the conveyor belts 7, 11, and together with this, the conveyance distance can be minimized, and the folding speed can be significantly improved. It has now become possible to simplify the structure and downsize the structure.

In addition, in the present invention, a pair of upper and lower rollers 6, 1
0 and between the pair of front and rear rollers 6, 2, a gap is provided between the stretched positions of the conveyor belts 7, 11,
By providing the insert plates 25, 37 with notches corresponding to the tension positions of the conveyor belts 7, 11, the tips of the insert plates 25, 37 can be extended to the contact points of the rollers 6, 10 and 6, 2. As a result, sheets can be effectively fed to each roller 6, 10 and 6, 2, and each roller 6, 10 and 6, 2
This makes it possible to prevent the insertion plates 25 and 37 from being bitten by the insert plates 25 and 37, thereby improving their safety.

In addition, in the present invention, the gear 31 provided on the crankshaft 29 side is provided so that the mounting angle can be adjusted with respect to the scale plate 30, and the time delay of the crank rod 34 relative to the crank rod 22 can be reduced by adjusting the mounting angle. By making it possible to adjust it arbitrarily, the insertion plate 37 can be adjusted to accurately push the intermediate position between the rollers 6 and 2 into the sheets that are coming down in a folded state. Things are possible. Therefore, it is possible to always obtain accurate four-fold conditions for sheets of various sizes.

Furthermore, according to the present invention, by arbitrarily adjusting the rotational speed of both rollers 6 and 2, the above-mentioned adjustment of the folding position can be finely adjusted.
It is possible to easily set the paper in an accurate four-fold state, and the practical effect in this respect is extremely large.

[Brief explanation of the drawing]

Fig. 1 is a side view of the sheet folding device according to the present invention, Fig. 2 is a rear view thereof, Fig. 3 is a plan view thereof, and Figs. 4 to 7 are schematic explanatory diagrams showing the folding process of sheets. , FIGS. 8 to 11 are schematic diagrams of sheets showing the folding process. A...Machine frame, B...Transportation mechanism, C...Feeding mechanism, 1...Lower frame, 1'...Upper frame, 2...Feeding roller, 2...Protrusion, 3...Table, 3' ，
3''...Top plate, 4...Inlet, 5...Roller, 5'...Spindle, 6...Roller, 6'...Spindle, 7...Transport belt, 8, 8'...Auxiliary Roller, 9...Roller, 9'...Spindle, 10...Roller, 10'...Spindle, 11...Transport belt,
12... Conveyance section, 13... Motor, 14... Intermediate shaft, 15... Belt transmission mechanism, 16... Belt transmission mechanism, 17... Belt transmission mechanism, 18... Clutch, 19... Crankshaft, 20 ... Chain transmission mechanism, 21 ... Crank plate, 22 ... Crank rod, 23 ... Slide rod, 24 ... Horizontal rod,
25...Inlet, 25'...Lower edge, 26...
...Entrapment prevention rod, 27...Entanglement prevention rod, 28...
... Gear, 29 ... Crankshaft, 30 ... Dial plate, 31 ... Gear, 32 ... Long hole, 33 ... Tightening screw, 34 ... Crank rod, 35 ... Arm, 36 ... Fulcrum shaft, 37 ... ...Insert board, 3
7'...Tip part, 38...Auxiliary conveyance belt, 39
...Connection rod, a, b...Contact points.

Claims (1)

[Scope of utility model registration request] A long hole-shaped insertion opening is provided in the middle of the table, and on both sides of the insertion opening, a pair of left and right rollers are placed opposite each other at regular intervals along the longitudinal direction of the table. Each roller is provided at regular intervals along one side of the mouth, and a roller is provided on the lower side thereof, while a crank rod is provided between each of the rollers located on the left and right and above and below. In addition to providing continuous insertion plates that can move forward and backward, the tips of both insertion plates are formed with continuous unevenness such that a U-shaped notch is located in a portion corresponding to each roller, and the above-mentioned crank rod is The two crankshafts that support the base of the machine are interlocked through a pair of meshing gears, one of which is directly mounted on the crankshaft, and the other gear is mounted on the crankshaft. A sheet folding device that is attached to a scale plate so that its angle can be adjusted freely.