JPH06286900A - Press - Google Patents

Abstract

PURPOSE:To prevent the meandering of belts so as to stabilize the travel of the belts by fixing a lower drive roller for driving the lower belt in endless belts in such a way as not to move vertically, and supporting a roller, brought into pressure contact with the lower drive roller through the belt, in the vertically movable state. CONSTITUTION:An upper and a lower belts 9, 10 are respectively driven at the same speed and circulated almost in close contact between upper and lower front rollers 3, 5 and upper and lower drive rollers 4, 6. Parts are charged from between the upper front roller 3 and the lower front roller 5 and heated by a heater 8. Pressure plates 12a, 12b are pressure-rotated by the energizing force of an adjusting coil spring 23 so as to press an intermediate case 24 downward. The upper drive roller 4 is also pressed downward by this pressure, and the parts held between the upper drive roller 4 and the lower drive roller 6 are pressure-bonded. Since the lower drive roller 6 is fixed in such a way as not to move vertically at this time, the meandering of both belts 9, 10, specially the lower belt, is not generated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press machine for heating and pressing parts such as clothing interlinings and outer materials to bond them.

[0002]

2. Description of the Related Art Conventionally, a press machine 41 shown in FIG. 10 has been proposed as a press machine for heating and pressurizing and bonding parts such as an interlining for clothes and a front material. That is, the machine frame 42
A support bar 47 and an arm 48 extending from one side to the other side are provided. The inner cover 45 has a cross section L on the support rod 47.
It is supported by a cantilevered connecting plate 46 so as to be vertically swingable. In this middle cover 45, the upper front roller 3
0 and the upper drive roller 31 are rotatably supported.
In the middle cover 45, an endless non-stretchable upper belt 37 that revolves around the upper front roller 30 and the iron upper drive roller 31 is provided.

On the other hand, the lower belt 38 includes a lower front roller 32, a lower drive roller 33, and a lower middle roller 3 made of silicon rubber.
It is provided so as to go around along the line 4. Upper belt 3
7 and the lower belt 38 are motors (not shown), respectively.
The upper drive roller 31 and the lower drive roller 33, which are rotationally driven by, are driven at the same speed in the arrow direction shown in FIG. Between the upper and lower front rollers 30, 32, the upper drive roller 31, and the lower middle roller 34, the belts 37, 38 move in a state of being in close contact with each other. A pair of upper and lower heaters 36 are disposed with the belts 37 and 38 in close contact with each other, and the parts moving between them are heated together with the belts 37 and 38. On the bottom surface of the heater 36 provided below the pair of upper and lower heaters 36, there are two locations on the front side, one side of the machine frame 42 and one side closer to the other side, and two locations on the rear side, one side of the machine frame 42. A coil spring 50 is provided near the other side. When the thick parts pass between the pair of upper and lower heaters 36, these coil springs 50 are
They are designed to work independently as cushions and improve the flow of parts.

The upper drive roller 31 and the lower middle roller 34 are provided such that the straight line connecting the shaft centers of the rollers 31 and 34 is perpendicular to the contact surfaces of the belts 37 and 38.

A pressing case 49 is fixed to the arm 48. A pressing plate 35 biased by a spring (not shown) is projected from the pressing case 49 so as to press the inner cover 45 downward. By pushing the middle cover 45 downward by the pushing plate 35, the upper drive roller 31 is pushed downward. Then, the upper drive roller 31 pressed downward by the pressing plate 35 cooperates with the lower middle roller 34 biased upward by the pair of coil springs 43 to press and bond the parts so as to sandwich the parts. The coil springs 43 are provided so as to support both ends of the lower middle roller 34 and work independently of each other. That is, the coil spring 43 shrinks when a thick part passes between the upper drive roller 31 and the lower middle roller 34, and a margin is provided between the upper drive roller 31 and the lower middle roller 34 so that the thick part can pass easily. Is provided.

In the pressing machine 41 as described above, when the belt is stretched due to heating by the heater or change in the thickness of the parts, there is a problem that the belt meanders with respect to the roller. Conventionally, in order to correct this meandering, a meandering correcting device as shown in FIG. 11 has been proposed.

That is, the meandering correction devices are provided above and below the machine frame 42, respectively. The meandering correction device in the upper portion of the machine frame 42 is composed of a movable bearing 44 that pivotally supports the upper front roller 30, upper movable rods 39a and 39b, and the like. The meandering correction device in the lower portion of the machine frame 42 is composed of a pair of left and right movable bearings that pivotally support the lower front roller 32 and a pair of left and right lower movable rods 40. This meandering correction device has an upper belt 37
Since a substantially same structure is provided for the lower belt 38 and the lower belt 38, a meandering correction device for the upper belt 37 will be described.

Both ends of the upper front roller 30 are rotatably supported by a movable bearing 44 which is supported by the machine frame 42 so as to be movable back and forth (in the directions of arrows B and C in FIG. 11). The movable bearing 44 is fixed to the upper movable rods 39a and 39b that can reciprocate in the front-rear direction (arrows B and C in FIG. 8).

In the meandering correction device constructed as described above, when the upper belt 37 meanders to the right in FIG. 11, that is, when the upper belt 37 meanders to the position shown by the chain line 37a, the upper movable rod 39b is moved to the arrow in FIG. The upper front roller 30 is moved in the C direction and tilted as shown by a chain line 30a. As a result, the tension on the right end side of the upper belt 37 indicated by the chain line 37a increases, and the belt 37 moves to the normal position indicated by the solid line.

[0010]

However, in the press machine 41 having the above-mentioned structure, it is necessary to apply tension to the belts 37 and 38 each time the meandering is corrected by the vertically movable rods 39 and 40. There is a problem that the non-functional belt is damaged. Also, both belts 37, 38
During the meandering traveling, the both ends of the belts 37 and 38 come into contact with the machine frame 42 and the inner cover 45 and rub against each other, and both ends of the belt are worn and damaged.

Further, in the conventional upper drive roller 31, the lower middle roller 34 is pressed from above by the pressing plate 35 in the direction directly below the axial center thereof. When the parts sandwiched between the upper and lower belts enter between the rollers 31 and 34, the upper drive roller 31 is pressed by the pressing plate 35.
The passage resistance of the parts is generated, and the braking action acts on both belts 37 and 38. As a result, the belts 37 and 38 positioned in front of the rollers 31 and 34 are bent in the width direction and the length direction of the belt, and as a result, the belt starts to meander. there were.
Further, especially when a thick part is about to pass, the passing resistance may be too large and the belt running may stop.

The coil springs 43 supporting both ends of the lower middle roller 34 are made of thick parts.
By passing one end of the
The coil springs 43 are respectively reduced to improve the flow of parts. However, since both coil springs 43 shrink independently, both belts 37, 38, especially lower belt 38.
There was a problem that the meandering of the.

Therefore, in view of the above problems, an object of the present invention is to provide a press machine capable of preventing the belt from meandering and bending and stabilizing the belt running.

[0014]

SUMMARY OF THE INVENTION In order to solve the above problems, according to the present invention, an endless belt is looped between a plurality of rollers arranged at the front and rear, respectively, and a heater is provided between the front and rear rollers. In a press machine that heats and bonds cloth and the like between the upper and lower belts, the lower drive roller that drives the inner and lower belts of the endless belt is fixed so as not to move vertically, and the lower drive The gist is that the roller, which is pressed against the roller via a belt, is supported so as to be vertically movable.

According to a second aspect of the present invention, an endless belt is wound between a plurality of rollers arranged at the front and rear of each of the upper and lower parts, and a heater is arranged between the front and rear rollers.
In the press for heat-bonding a cloth or the like between the belts arranged above and below, a meandering correction roller having a pressing surface for pressing an end portion in the width direction of the belt at both ends is arranged in a belt circulation path. That is the summary.

Further, in the invention of claim 3, an endless belt is wound between a plurality of rollers arranged at the front and rear, and a heater is arranged between the rollers at the front and rear in both upper and lower parts.
In a press for heat-bonding cloth or the like between the belts arranged above and below, the upper rear roller on the upper belt side and the lower rear roller on the lower belt side are in contact with each other through the upper and lower belts, and A press machine characterized in that a rear roller is arranged rearward of an upper rear roller, and a tension applying roller for applying an upward tension to both upper and lower belts is arranged in front of a lower rear roller. It is composed of a non-stretchable belt hung on a plurality of rollers, and a roller provided in a circulation path of at least one of the belts and having a taper that becomes thicker toward both ends contacting at least one of the belts. And

[0017]

In the present invention thus constructed, the belt does not meander because the lower drive roller does not move up and down.

When the belt tries to meander, a meandering correction roller having pressing surfaces for pressing the widthwise ends of the belt corrects the meandering by applying tension to the end of the belt.

Further, by arranging the lower rear roller on the rear side of the upper rear roller and arranging a tensioning roller for imparting upward tension to both upper and lower belts in front of the lower rear roller, the cloth or the like is placed on the upper side. There is no pinching between the rear roller and the lower rear roller, and neither belt is bent.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment embodying the present invention will now be described with reference to FIG.
9 to 9. 1 and 2 show a press 1 for heating and pressurizing parts such as clothing interlining and outer material to bond them. The press machine 1 is provided with a support bar 26 and an arm 14 extending from one side of the machine frame 2 to the other side. This support rod 2
In FIG. 6, a square box-shaped middle cover 24 having an open bottom is supported by a connecting plate 25 having an L-shaped cross section so as to be vertically swingable. In the middle cover 24, an upper front roller 3, an upper drive roller 4 as an upper rear roller, a meandering correction roller 7a, and a level adjusting roller 15 are rotatably supported. Inside the middle cover 24, there is provided an endless non-stretchable upper belt 9 which circulates along the upper front roller 3, the upper drive roller 4, the meandering correction roller 7 a and the level adjusting roller 15. On the other hand, lower front roller 5
The lower drive roller 6 serving as the lower rear roller, the meandering correction roller 7b, and the deflection removing roller 16 serving as the tension applying roller are wound around an endless non-stretchable lower belt 10. The upper drive roller 6 is provided so as not to move up and down.

Both belts 9 and 10 are respectively driven at the same speed in the arrow direction by an upper drive roller 4 and a lower drive roller 6 which are rotationally driven by a motor (not shown).
Between the upper and lower front rollers 3 and 5 and the upper and lower drive rollers 4 and 6, both belts 9 and 10 are provided so as to circulate in the same direction while being in close contact with each other. Both belts 9, 10
A pair of upper and lower heaters 8 are arranged with the closely contacted portions of the belts sandwiched therebetween, and the parts moving between them are heated together with both belts 9 and 10. On the bottom surface of the heater 8 provided below the pair of upper and lower heaters 8, there are two front portions, the machine frame 2
The coil springs 8a are provided near one side and the other side, and at two locations in the rear, near one side and the other side of the machine frame 2. These coil springs 8a are provided so as to independently act as cushions and improve the flow of parts when passing between a pair of heaters 8 above and below thick parts.

As shown in FIG. 3, the pressing case 13 is supported and fixed to the arm 14. The rotating shaft 12 is rotatably supported on the lower portion of the pressing case 13. Rotating shaft 12
A pressing plate 12a for pressing the middle case 24 downward is provided. A driven plate 12b is provided on the rotating shaft 12 in a protruding manner.
The upper end thereof is penetrated by the adjusting bolt 11. The adjusting bolt 11 penetrates the one end wall 13a of the pressing case 13,
It is screwed to the end wall 13a. On the other hand, a circular contact plate 11a having a diameter larger than the bolt diameter is provided at the tip of the adjusting bolt 11. A coil spring 23 is provided between the driven plate 12b and the contact plate 11a, and the adjustment bolt 11
It is arranged in a state of being penetrated through. When the adjusting bolt 11 is twisted in the screw retracting direction from the pressing case 13, the contact plate 11a
Moves toward the one end wall 13a of the pressing case 13 and compresses the coil spring 23. As a result, the driven plate 12b is pressed and the pressing plate 12a is rotated counterclockwise to push the middle case 24 downward. As a result, the upper drive roller 4 is pressed downward. The pushed upper drive roller 4 pushes the lower drive roller 6 and presses the parts passing between the both rollers 4, 6. Further, the lower drive roller 6 and the upper drive roller 4 are made of silicone rubber and function as cushion rubber. That is, the thick parts are both rollers 4,
When passing between 6, the elasticity of the silicon rubber absorbs the thickness of the parts and allows the parts to easily pass through. Further, the upper drive roller 4 is provided so as to move up and down together with the middle cover 24.

As shown in FIG. 4, an upper drive roller 4 on the upper belt 9 side and a lower drive roller 6 on the lower belt 10 side are provided so as to be in contact with each other via the upper and lower belts 9, 10. The rotation center O ₁ of the upper drive roller 4 shown in FIG.
And the lower drive roller 6 is arranged rearward of the upper drive roller 4 by a distance L of lines drawn perpendicularly to the belts 9 and 10 from the rotation center O _{2 of} the lower drive roller 6. In front of the lower drive roller 6, a flexure removal roller 16 that applies upward tension to the upper and lower belts 9 and 10 is arranged. Then, about 5 mm to 10 mm from the line F, which is assumed to be stretched below the upper drive roller 4 in parallel with the upper portion of the upper belt 9 around which the upper portion of the deflection removing roller 16 is wound. Bending removal rollers 16 are arranged so as to be separated (height J in FIG. 4). Both ends of the bending removing roller 16 are coil springs 16a.
It is provided so that it can be moved up and down. As a result, the close contact between the belts 9 and 10 is removed. The level adjusting roller 15 provided at a position in front of the flexure removing roller 16 has both belts 9 and 10 pushed up by the flexure removing roller 16 from the heater 8.
It is provided so as to be lowered to the same height as 10. Therefore, the parts coming out of the heater 8 are the level adjustment roller 1
The belts 9 and 10 are jammed or stopped because they are sent out in order through the 5, the bending removal roller 16, the upper drive roller 4, and the lower drive roller 6 and smoothly enter between the upper and lower drive rollers 4 and 6. There is no such thing.

As shown in FIG. 1, a belt tensioner case 17 as a meandering correction device is provided on both sides of the upper front roller 3 and the lower front roller 5. Since the belt tensioner case 17 has almost the same structure, a meandering correction device for the upper belt 9 will be described with reference to FIGS. 2, 5, 6, and 7.

The rectangular box-shaped belt tensioner case 17 fixed to one side of the inner cover 24 has a front end wall 17a and an intermediate partition 27 of the case 17 at substantially the center thereof with a fool hole 21 formed therein. The screw rod 18 is passed through these fool holes 21.
Is provided. A circular knob 18a is provided at one end of the screw rod 18, and the knob 18a is also provided.
A plurality of flat springs 19 are provided between the belt tensioner case 17 and one end surface 17a of the belt tensioner case 17. A collar 20 that is screwed into the threaded rod 18 is provided between the two fool holes 21. As shown in FIG. 6, a bearing 22 is fitted to the collar 20, and the shaft of the upper front roller 3 is rotatably supported by the bearing 22. Therefore, the tension of the upper belt 9 acts on the screw rod 18 through the bearing 22 and the collar 20 in the G direction shown in FIGS. On the other hand, the knob 18a and one end wall 1 of the belt tensioner case 17
The threaded rod 18 is pulled in the arrow H direction in FIGS. 5 and 7 by the elastic force of the flat spring 19 provided between 7a, and the forces in the H and G directions are always balanced.

When tension is applied to the upper belt 9, the screw rod 18 is inserted into the collar 20 so that the distance between the collar 20 and the knob 18a becomes short. As a result, since the extension force of the flat spring 19 and the pulling force of the upper belt 9 are always equal, when the collar 20 and the contact knob 18a approach each other, the tension of the belt 9 increases by the amount of the elastic force of the flat spring 19 accumulated.

As shown in FIGS. 8 and 9, the meandering correction roller 7
At both ends of a, a tapered surface 7c as a pressing surface whose diameter becomes gradually larger than the diameter of the center of the roller 7a toward the end.
Is provided. The roller 7a is provided below the middle case 24 via a bracket 29 so as to slightly press the belt 9. That is, a support shaft 28 that penetrates the axis of the roller 7a and rotatably supports the roller 7a is fixed to a bracket 29 that extends downward from the middle case 24. The bracket 29 has a long hole 29a formed therethrough in the lengthwise direction thereof. Also, the support shaft 2
Male screws are threaded on both ends of 8. This support shaft 28
Is vertically movably inserted into the long hole 29a, and is fixed by a nut 28a so that the mounting position can be adjusted.

Accordingly, even if the upper belt 9 meanders, the taper surface provided at the end of the meandering correction roller 7a applies tension to the end of the upper belt 9 to correct the meandering. As shown in FIG. 1, a meandering correction roller 7 b having substantially the same structure is provided also for the lower belt 10.

D1 and D2 in FIG. 9 are the middle cover 2 respectively.
4 shows the distance from 4 to the axis of the meandering correction roller 7a, that is, the mounting position of the support shaft 28. In this embodiment, the lengths of D1 and D2, that is, the mounting positions of the left and right support shafts 28 are different. This is because when the upper belt 9 is driven in advance, the direction in which the upper belt 9 meanders is known.
D1 in order to correct the meandering in that direction
And D2 are different. For example, when the upper belt 9 meanders to the left, D2 is made larger than D1, that is, the meandering correction roller 7a is lowered on the left side and the tension on the left side of the upper belt 9 is increased to adjust the meandering.

Next, the press machine 1 configured as described above.
The action of will be described. The parts are loaded from between the upper front roller 3 and the lower front roller 5 and heated by the heater 8.

The pressing plate 12 is pressed and rotated by the urging force of the adjusting coil spring 23, and presses the middle case 24 downward. Since the upper drive roller 4 is also pressed downward by this pressing, the parts sandwiched between the upper drive roller 4 and the lower drive roller 6 are pressure-bonded.

Further, the elasticity of the silicone rubber of the upper drive roller 4 and the lower drive roller 6 absorbs the thickness of the parts. Further, when the thick part passes between the upper drive roller 4 and the lower drive roller 6, the upper drive roller 4 moves upward together with the middle cover 24, so that the thick part is separated from the upper drive roller 4 and the lower drive roller 6. There is no need to get stuck between them. Further, by providing the level adjusting roller 15 and the bending removing roller 16, the parts can be fed smoothly.

Since the left and right axial positions of the meandering correction rollers 7a and 7b are adjusted in advance so as not to cause meandering during normal running, belt meandering does not occur during normal running. However, if the meandering occurs for some reason,
A screw rod 18 provided on both sides of the upper front roller 3 and the lower front roller 5 applies tension to both belts 9 and 10 to manually correct the meandering.

Therefore, according to the embodiment of the present invention, since the parts pass through the rollers in order, they are not jammed between the rollers. Further, since the lower drive roller 6 is fixed so as not to move up and down, both belts 9, 1
0, especially the lower belt 10, does not meander. Further, since the meandering correction rollers 7a and 7b always correct the meandering, the number of times of correcting the meandering by applying tension to the belt is much reduced. As a result, the number of times the tension is applied to the non-stretchable belt is reduced, and the durability of the belt is improved. Further, the number of times the ends of the belts 9 and 10 come into contact with the machine frame 2 and the middle cover 24 is reduced, and the degree of wear of the ends of the belt is reduced unlike the conventional case. Further, by providing the bending removing roller 16, the bending of both belts 9 and 10 is always removed.

Also, unlike the prior art, the lower drive roller 33 for driving the lower belt 10 and the lower middle roller 34 for pressing are to be performed by one lower drive roller 6. Therefore, the heater 8 can be lengthened. Even if the same amount of heat is applied to the parts, it is necessary to raise the temperature when the length of the heater 36 in the part feeding direction is short as in the conventional case. However, in this embodiment, the length of the heater 8 in the part feeding direction can be increased. There is no need to raise the temperature, and there is little possibility of heat damage to parts.

The present invention is not limited to the above embodiment, and for example, the meandering correction rollers 7a and 7b may be provided in the immediate vicinity of the upper drive roller 4 and the lower drive roller 6. Further, the length of the belt may be shortened and the entire press machine may be downsized as compared with the conventional one. Further, any changes may be made without departing from the spirit of the present invention.

[0037]

As described above in detail, according to the present invention, it is possible to prevent the belt from meandering and bending and to stabilize the belt running.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an embodiment of the present invention.

FIG. 2 is a perspective view of an embodiment of the present invention.

FIG. 3 is a partial cross-sectional view around a pressing plate according to an embodiment of the present invention.

FIG. 4 is a schematic view of a portion of the belt according to the embodiment of the present invention.

FIG. 5 is a sectional view of a belt tensioner according to an embodiment of the present invention.

6 is a cross-sectional view taken along line XX of FIG.

FIG. 7 is a schematic view of the meandering correction of the present invention.

FIG. 8 is a side view around the meandering correction roller according to the embodiment of the present invention.

FIG. 9 is a side view around the meandering correction roller according to the embodiment of the present invention.

FIG. 10 is a schematic diagram of the prior art.

FIG. 11 is a schematic diagram of prior art meandering correction.

[Explanation of symbols]

3 ... upper front roller, 4 ... upper drive roller, 5 ... lower front roller, 6 ... lower drive roller, 7a, 7b ... meandering correction roller, 7c ... taper surface as pressing surface, 8 ... heater, 9
... upper belt, 10 ... lower belt, 15 ... level adjusting roller, 16 ... flexure removing roller as tension applying roller.

Claims (3)

[Claims] 1. An endless belt (9, 10) is looped between a plurality of rollers (3, 4, 5, 6, 15, 16) arranged at the front and rear of each of the upper and lower parts, and between the front and rear rollers. A heater (8) is disposed in the upper end of the endless belt (9, 10) to heat and bond a cloth or the like between the upper and lower belts (9, 10). The lower drive roller (6) for driving the motor is fixed so as not to move up and down, and the belt (9, 1) is attached to the lower drive roller (6).
A press machine characterized by supporting a roller (4) which is pressed by means of (0) so as to be vertically movable. 2. An endless belt (9, 10) is looped between a plurality of rollers (3, 4, 5, 6, 15, 16) arranged at the front and rear of each of the upper and lower parts, and between the front and rear rollers. A heater (8) is disposed in the belt, and a press machine for heating and adhering cloth or the like between the belts (9, 10) disposed above and below the belt (9, 10) in a loop path. )
A meandering correction roller (7a, 7b) having pressing surfaces for pressing the ends in the width direction is arranged at both ends. 3. An endless belt (9, 10) is looped between a plurality of rollers (3, 4, 5, 6, 15, 16) arranged at the front and rear of each of the upper and lower parts, and between the front and rear rollers. A heater (8) is arranged in the upper part of the upper belt (9) side of the upper rear roller (4) and the lower belt (9) on the upper belt (9) side. The lower rear roller (6) on the belt (10) side and the upper and lower belts (9,
10) accessible via the lower rear roller (6)
Is arranged on the rear side of the upper rear roller (4), and a tensioning roller (16) for imparting upward tension to the upper and lower belts (9, 10) is arranged in front of the lower rear roller (6). A press machine characterized by that.