JP3413568B2 - Crimping roller device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-bonding roller device, and more particularly, to a pressure-bonding roller which holds a superposed edge portion extending in the feeding direction of a film formed into a tubular shape by a pair of pressure-bonding rollers. The present invention relates to a pressure bonding roller device.

[0002]

2. Description of the Related Art A sealing roller device for sandwiching a superposed edge portion of a cylindrically formed film with a sealing surface and heat-sealing it while transporting it has been conventionally used in various packaging machines, bag-making machines and the like. With the seal roller device installed in these various devices,
In order to provide a good heat seal to the film, the ridge lines of the seal surfaces (film sandwiching surfaces) on the opposing rotating peripheral surfaces of the both seal rollers must be surely abutted in the width direction of the film overlapping portion. Will be needed. However,
It is difficult to match the ridge lines of the abutting portions on both seal surfaces at the time of assembly due to errors in the processing accuracy and assembly accuracy of the seal roller and other related members. Therefore, after assembling the seal roller device, it is necessary to adjust the inclinations (inclinations of the ridgelines) of both seal rollers to match the ridgelines of the contact portions on both seal surfaces.

Conventionally, as a means for adjusting the inclination of the ridgeline of the abutting portion on the seal surface of the seal roller, there has been one in which a holder for pivotally supporting a shaft on which one seal roller is arranged can be tilted. In this case, by tilting the holder, the shaft of the seal roller is tilted, and the ridge line of the contact portion of the seal surface of one of the seal rollers is inclined with respect to the ridge line of the contact portion of the seal surface of the other seal roller. Can be adjusted slightly so that the ridges of both sealing surfaces in the film overlap portion coincide. By using this adjusting means, the ridge line of the abutting portion of the seal surface of one of the seal rollers is slightly inclined with respect to the ridge line of the abutting portion of the seal surface of the other seal roller. It is also practiced to ensure partial sealing by abutting one end side of the.

[0004]

In the above-mentioned seal roller device, it is necessary to separate both seal rollers from the overlapping edge portion of the film in order to prevent the film from being melted when the film conveyance is stopped. Proximity to the roller
It is equipped with a mechanism for moving it apart. Therefore, the seal roller device is equipped with a mechanism for moving the seal roller closer / separated.
Since the adjusting means for tilting the shaft of the seal roller is provided side by side, the apparatus is complicated and the manufacturing cost is increased, and the adjustment when tilting the shaft of the seal roller is complicated. .

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the problems inherent in the above-mentioned conventional techniques, and is proposed in order to suitably solve the problems, and the structure of the inclination adjusting means of the rotary shaft center of the pressure roller. It is an object of the present invention to provide a pressure-bonding roller device that simplifies the manufacturing process, keeps the manufacturing cost low, and facilitates the adjustment work.

[0006]

[Means for Solving the Problems]
In order to preferably achieve the intended purpose, the pressure-bonding roller device according to the present invention includes a pair of pressure-bonding rollers for sandwiching and pressure-bonding the overlapping edge portions extending in the feeding direction of the tubular molded film. a press roller apparatus, a support cylinder for rotatably supporting the pressure roller one <br/> direction is disposed in the support means, the supporting
Said supporting the nearer to and away from the supporting shaft with respect to the one pressure roller of which is supported by the lifting cylinder other pressure roller is journalled
And a holder in lifting means, the support shaft, the are tiltably arranged against the apparatus base as to be able to adjust the inclination of the rotation axis at one crimping roller, the inclination motion means to the support shaft By inclining, the rotational axes of the pressure-bonding rollers are relatively tilted, and the pressure-bonding surfaces of the pressure- bonding rollers when the pair of pressure-bonding rollers facing each other with the overlapping edge portion in contact are brought into contact with each other. characterized by being configured to adjust the contact angle.

[0007]

By tilting the support shaft arranged on the apparatus base by the tilting means, the rotation axis of one pressure roller rotatably supported on the support shaft via the supporting means is the other. It is inclined with respect to the rotation axis of the pressure roller. This makes it possible to adjust the relative contact angle of the pressure-bonding surfaces of the pair of pressure-bonding rollers that are opposed to each other with the overlapping edge portion of the film interposed therebetween.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a pressure roller device according to the present invention will be described below with reference to the accompanying drawings with reference to preferred embodiments. It should be noted that in the embodiment, as the pressure-bonding roller device, a vertical sealing device adopted in a horizontal bag-making filling machine will be described as an example, but the pressure-bonding roller device of the present invention is not limited to this, and other pressure-sensitive roller devices can be used. It can also be used as a seal roller device for bag filling machines and packaging machines.

As shown in FIG. 1, the horizontal bag-making and filling machine 9 according to the embodiment is equipped with a supply conveyor 12 for feeding an article 11 to be packaged to a downstream side by an attachment 13 at predetermined intervals. On the downstream side of the supply conveyor 12, a bag-making device 19 for forming a film 18 fed from the supply roll 16 by a pair of delivery rollers 14 into a tubular shape is arranged, and is supplied from the supply conveyor 12 to be packaged. The object 11 is filled in the film 18 formed into a tubular shape.

On the downstream side of the bag-making device 19, when the tubular film 18 is transported toward the downstream side in the feeding direction, a transport bed 21 which supports the lower surface of the articles supplied into the tubular film 18 is provided. As a pressure-bonding roller device that vertically seals while stacking and transferring the overlapping edge portion 18a along the feeding direction of the tubular film 18 at a position close to the lower portion of the transport bed 21. A vertical sealing device 10 is provided. As will be described later, the vertical sealing device 10 opposes a pair of seal rollers (compression rollers) 22 and 22 for vertically sealing the overlapping edge portion 18a of the tubular film 18 with the overlapping edge portion 18a interposed therebetween. To prepare. Further, on the upstream side of the vertical sealing device 10, the overlapping edge portion 18 of the tubular film 18 is provided.
A pair of feed rollers 20 and 20 (only one of which is shown) sandwiching a are arranged so as to rotate in mutually opposite directions, and the feed rollers 20 and 20 provide a vertical sealing device 10 for the tubular film 18.
Is delivered to.

A pair of heat-sealing members 23, 23, which are vertically opposed to each other with a horizontal film feeding path sandwiched therebetween, are arranged downstream of the vertical sealing device 10, and the object 11 to be packaged of the tubular film 18 is provided. A horizontal seal is provided before and after sandwiching, and a cutter provided in the seal body 23 is used for cutting.

In the vertical sealing device 10, as shown in FIG. 3, the box body 26 is cantilevered via the hollow arm 45 on the front side of the main body 24 of the horizontal bag-making filling 9 which is directed to the film feeding path. It is arranged and fixed to. The box body 26 has a pair of support shafts 3 spaced apart from each other in the opposing direction of the seal rollers 22 and 22 orthogonal to the film feeding direction with the film feeding path interposed therebetween.
2, 32 are arranged so as to penetrate vertically. That is, the through holes 26a are formed in the top plate and the bottom plate of the box 26 corresponding to the positions of the support shafts 32, respectively, and the through holes 26a of the top plate are formed.
The support shaft 3 is inserted into the through hole 36a of the cylindrical holding member 36 fitted in the
The upper portion of 2 is inserted, and a bolt 38 is screwed into the shaft end of the support shaft 32 to position and support the box body 26. As the material of the holding member 36, a material that is more easily elastically deformed than that of the support shaft 32 is adopted, and a slight tilting of the support shaft 32 supported by the holding member 36 is allowed. In the embodiment, the portion including the main body 24, the arm 45 and the box body 26 functions as a device base that supports the support shaft 32.

Each through hole 2 formed in the bottom plate of the box body 26.
The tilting means 42 of the support shaft 32, which is composed of a tubular body 52 and a plurality of (four in the embodiment) adjusting bolts 54, is provided in each 6a. That is, the cylindrical body 52 is fitted into the through hole 26a of the bottom plate, and the lower portion of the support shaft 32 is inserted into the central through hole 52a of the cylindrical body 52 in a non-contact manner as shown in FIG. Further, screw holes 52b penetrating in the radial direction are formed at an angle of 90 ° in the circumferential direction on the outer peripheral portion of the cylindrical body 52 that hangs downward from the bottom plate, and the adjusting bolts 54 are respectively screwed into the screw holes 52b. ing. Then, the central through hole 52 of each adjustment bolt 54
By abutting the tip end facing the inside of a on the outer peripheral surface of the support shaft 32, the support shaft 32 is positioned within the center through hole 52a. Of the four adjustment bolts 54,
Two adjusting bolts 54, 54 facing each other with the support shaft 32 in between.
Are aligned in the film feeding direction, and the other two adjusting bolts 54, 54 are aligned in the facing direction of the seal rollers 22, 22, and the supporting shaft 32 is fed by the tilting means 42. Direction and both seal rollers 22,2
The tilt is adjustable in the opposing direction of 2. Therefore,
By adjusting the tilt of the support shaft 32 in these two directions, the rotational axes of the seal rollers 22, 22 configured as described later can also be tilted in these two directions.

On each support shaft 32 facing the inside of the box 26,
As shown in FIG. 2, a holder 34 constituting a support means is rotatably fitted on the outside, and the holder 34 serves as a support means for internally supporting a rotary shaft 28 having a seal roller 22 attached to an upper end thereof. The support cylinder 30 is provided via an arm portion 30a protruding in the radial direction. That is, the support cylinder 30 that supports the seal roller 22 is horizontally swingable with respect to the support shaft 32. Both holders 34, 34
, The open / close spur gears 40, 40 as interlocking members are arranged so as to mesh with each other (see FIG. 3), and one holder 34 is rotated in the forward and reverse directions via a wire 74 and tension springs 64, 70 described later. By rotating, the seal rollers 22, 22 are configured to move (open and close) to and from each other via the support cylinders 30, 30 with the overlapping edge portion 18a of the tubular film 18 interposed therebetween.

The first spur gear 4 as a driving side rotating member is provided at a portion of each of the support shafts 32 facing the holder 34.
4 are rotatably externally fitted to each other, and as shown in FIG. 3, both first spur gears 44, 44 of both support shafts 32, 32 are meshed with each other.
Further, as shown in FIG. 2, a second spur gear 60 as a driven-side rotating member is integrally rotatably disposed at the lower end of the rotary shaft 28 rotatably supported by each of the support cylinders 30, respectively.
The spur gear 60 meshes with the corresponding first spur gear 44, and both rotary shafts 28, 28 are configured to rotate in opposite directions. A drive mechanism (not shown) for the seal roller 22 is disposed in the main body 24, and an operating shaft 50 connected to the drive mechanism is inserted into the box body 26 via the arm 45. Then, the bevel gear 4 arranged at the tip of the operating shaft 50.
As shown in FIG. 3, a gear 8 is meshed with a bevel gear 46 arranged so as to rotate integrally with the first spur gear 44 on the side close to the main body 24. That is, the rotational force from the drive mechanism is generated by the bevel gear 48, the bevel gear 46, the first spur gears 44, 44.
And the two rotary shafts 28, 28 via the second spur gears 60, 60.
Is transmitted to the pair of seal rollers 28, 2
8 are adapted to rotate in opposite directions.

As shown in FIG. 2, each support cylinder 30 is inserted into a large-diameter through hole 26b formed at a corresponding position of the top plate of the box body 26 in a non-contact manner and is moved upward by a predetermined length. It is extended. A pedestal 58 is disposed on the upper end of the support cylinder 30, and a cylindrical heater block 62 having a heater 61 built therein is disposed and fixed on the upper end of the pedestal 58. The center through hole 58a of the pedestal 58 and the center through hole 62a of the heater block 62 are set to coincide with the center through hole 30b of the support cylinder 30, and the center through hole 30b of the support cylinder 30 is provided with a bearing 56. Rotation shaft 28 rotatably inserted and supported
The upper part of the non-contact surface faces the through holes 58a, 62a of the pedestal 58 and the heater block 62 in a non-contact manner. The disc-shaped seal roller 22 is attached to the upper end of the rotary shaft 28 facing the heater block 62 so as to be integrally rotatable. The seal roller 22 is positioned with a slight gap between the lower surface of the seal roller 22 and the upper surface of the heater block 62.
Heater block 62 heated by the heater 61
It is configured to be heated by the radiant heat of.

A cylindrical first waterproof member 80 is fitted and fixed in the through hole 26b of the top plate of the box 26, and the outer peripheral portion of the support cylinder 30 is a portion extending upward from the top plate. It is designed to cover. The inner diameter of the first waterproof member 80 is
The size is set to be sufficiently larger than the outer diameter of the support cylinder 30,
It is configured to allow the support cylinder 30 to move in the radial direction as the seal rollers 22, 22 move closer to each other or move away from each other.
In addition, a shielding member 81 that covers the outer peripheral portion of the heater block 62 is provided on the upper side of the pedestal 58, and the outer peripheral portion of the first waterproof member 80 is covered from the upper side over the required length on the lower side thereof. The second waterproof member 82 is vertically installed.

As shown in FIG. 4, both the support cylinders 30 and 30.
A first tension spring 64 is stretched between the pair of seal rollers 22, 22, and when the pair of seal rollers 22 and 22 are in proximity to each other, the sealing surface 22a causes the overlapping end edge portion 18a of the tubular film 18 to have a predetermined pressure by the biasing force of the spring 64. It is set so that it can be held. Further, a locking pin 68 is vertically provided on a box top plate facing between the support cylinders 30, 30, and the locking pin 68 and the main body 24 are
The second tension spring 70 between the support cylinder 30 on the side close to
Is stretched.

As shown in FIG. 5, both the support cylinders 30, 30
A restricting member 72 is projectingly provided on the bottom plate of the box body facing between the two, and one supporting cylinder 30 pulled toward the locking pin 68 side by the elastic force of the second tension spring 70 abuts against the restricting member 72, thereby supporting the supporting member. Seal roller 22 supported by cylinder 30
Is positioned in a fixed position. And
The other sealing roller 22 is pressed against the sealing roller 22 positioned by the regulating member 72 by the elastic force of the first tension spring 64, so that the tubular film 18 is formed.
The overlapped edge portion 18a is sandwiched. Further, the main body 24
As shown in FIG. 5, one end of a wire 74 is connected to the support cylinder 30 on the side away from the support cylinder 30, and the wire 74 is pulled by an appropriate opening means (not shown) such as a solenoid or a pneumatic cylinder. By swinging the cylinder 30 against the elastic force of the first tension spring 64, the other support cylinder 30 swings in the opposite direction via the opening / closing spur gears 40, 40, whereby a pair of seal rollers is formed. 22 and 22 are configured to be separated from each other. That is, when the film transport is stopped, the wire 7
By pulling 4, the seal rollers 22 and 22 can be separated from the overlapping edge portion 18a of the tubular film 18 and the melting of the film 18 can be prevented. If the pulling force by the opening means is released, both seal rollers 2
2, 22 come close to each other under the elastic action of the tension springs 64, 70.

[0020]

Next, the operation of the vertical sealing device according to the above-described embodiment will be described. The adjustment bolts 54 of the tilting means 42 arranged at the lower ends of the support shafts 32 are tightened by the same amount with respect to the cylindrical body 52, and the tip ends thereof are brought into contact with the outer peripheral surface of the support shafts 32. Then, the support shaft 32 is positioned substantially vertically. In this state, for example, the ridge lines of the contact portions of the seal surface 22a of the seal roller 22 that face each other with the overlapping edge portion 18a of the tubular film 18 therebetween do not match, and the upper end portion side of the seal surface 22a is in contact. If not, the tilting means 42 is used to adjust the tilt of the rotation axis of the seal roller 22.

That is, one support shaft 32 (for example, the main body 2
(The side close to 4) is positioned, the other support shaft 32
Loosen the four adjusting screws 54 of the tilting means 42 of FIG.
In this state, the adjusting bolt 5 on the main body 24 side shown in FIG.
By tightening 4 into the tubular body 52, the lower end of the support shaft 32, with which the tip end abuts, is pressed outward, and the upper end of the support shaft 32 is supported by the holding member 36. Member 3
6 is elastically deformed, and the lower end portion slightly tilts outward with respect to the upper end portion of the support shaft 32. As a result, the rotational axis of the seal roller 22 supported by the support shaft 32 via the support cylinder 30 is also slightly tilted, and the abutting portion on the seal surface 22a facing the other seal roller 22 positioned. The ridge lines of are the same. When this adjustment is completed, the other adjustment bolt 5
By tightening 4 respectively, the support shaft 32 and the seal roller 22 are positioned at the adjusted position.

If the adjustment of only one support shaft 32 is not sufficient, both support shafts 32, 32 are similarly tilt-adjusted using tilting means 42, 42, respectively, so that both seal rollers 22 are supported. It is possible to make the ridge lines of the contact portions of the seal surfaces 22a of the first and second parts 22 and 22 coincide. Furthermore, by using the tilting means 42, 42 of the embodiment, one seal roller 2
The ridge line of the contact portion of the seal surface 22a of the other seal roller 22 is slightly inclined with respect to the ridge line of the contact portion of the second seal surface 22a, and one end side of the ridge lines of both seal surfaces 22a, 22a is touched. By contacting with each other, the overlapping edge portion 18
It is also possible to ensure a partial seal of a.

The meaning of matching the ridgelines of the abutting portions on the seal surface 22a means, for example, on the seal surface 22a of the seal roller 22, grooves and peaks extending in the axial direction are continuously formed in the circumferential direction. Formed, both seal rollers 22,22
In the model in which the groove and the crest of the seal mesh with each other for sealing, the groove bottom and the crest of the seal roller 22 and the crest of the seal roller 22 coincide with each other, and the seal surface 22 of the seal roller 22
In a type in which a groove and a mountain extending in the circumferential direction are continuously formed in the axial direction in a, and the groove and the mountain of both seal rollers 22 and 22 mesh with each other to perform sealing, both seal rollers 22 and 22 are formed. That is, the groove and the ridge at the contact portion of are coincident with each other.

In the above embodiment, the seal roller 2 is used.
The tilt of the rotation axis of the seal roller 22 is adjusted by adjusting the tilt of the support shaft 32 on which the support cylinder 30 that rotatably supports the second rotation shaft 28 is arranged with respect to the box body 26. The tilting means 4 for performing the adjustment
It is possible to dispose 2, 42 at a position different from the mechanism for moving both seal rollers 22, 22 provided on the support cylinders 30, 30 closer to each other and separating them. Thereby, the vertical sealing device 10
In addition to simplifying the configuration of the above, the adjusting operation of the tilting means 42, 42 can be easily performed. The inclination adjustment of the rotation axis of the seal roller 22 described in the embodiment corrects an error in the processing accuracy and assembly accuracy of the roller 22 and other members, and the adjustment amount is small. Therefore, the support shaft 32
Although the assembly distance between the first spur gears 44 and 44 and the meshing distance between the bevel gears 46 and 48 change with the tilting of the
These changes are within the assembly tolerance of each gear,
The meshing state of each gear does not become defective.

[0025]

[Modification] The present invention is not limited to the configuration of the embodiment, and various modifications can be adopted. 1. Regarding the tilting means, it is sufficient that it is provided on at least one of the support shafts. 2. For the number of adjusting bolts in the tilting means, for example, three adjusting bolts are arranged at equal intervals in the circumferential direction, and the three adjusting bolts are tightened and adjusted to each other to adjust the film feeding direction of the seal roller and both seal rollers. It may be adjusted in the opposite direction. Further, the adjusting bolts are arranged in the facing direction of both seal rollers so as to be aligned and facing each other, and the inclination of the rotation axis of the seal roller can be adjusted only in the facing direction of both seal rollers by the two adjusting bolts. Can be adopted. 3. In order to prevent the film from being melted when the film is stopped, as a structure for separating both seal rollers from the overlapping edge portion of the film, instead of a structure in which a pair of seal rollers are moved toward and away from each other, It is possible to adopt a configuration in which the other seal roller is moved toward and away from one seal roller. In this case, a support shaft, a tilting means, a support cylinder, etc. are provided only for the seal rollers on the side of approaching / separating, and a spur gear that directly meshes when both seal rollers abut is provided on both rotary shafts. The rotation of the seal roller on the side that does not approach / separate, which is rotated by an appropriate means, may be directly transmitted to the seal roller on the side that approaches / separates. 4. A structure in which the rotary shaft of the seal roller is a fixed shaft fixed to a support cylinder, and the seal roller integrally provided with a spur gear as a driven side rotating member is rotatably arranged on the fixed shaft Good. 5. In the embodiment, the configuration has been described in which the seal roller is heated and the overlapping edge portion of the film is heat-sealed by the seal roller. However, a required film heating means (for example, a heating bar) is used.
May be provided on the upstream side of the seal roller, and the seal roller may simply press-bond the preheated film. 6. Instead of the spur gear of the embodiment, the rotation transmission means between the support shaft and the rotation shaft may be a sprocket and a chain, a toothed pulley and a toothed belt, or any other means for transmitting the rotation force. obtain. 7. For example, a universal joint or a spherical bearing may be adopted instead of the holding member that supports the support shaft in a state where the support shaft can be tilted with respect to the box body, and one end of the support shaft may be attached to these. Alternatively, set the support shaft to one side (for example, the direction in which both seal rollers
When it is limited to be tilted only, the upper end of the support shaft may be rotatably disposed on a pin fixed to the box. 8. The interlocking member for rotating the support cylinders in mutually opposite directions to move the pair of seal rollers toward and away from each other can be constituted by a link member or the like connecting the both support cylinders. 9. In the embodiment, the seal roller is configured to swing about the support shaft and move toward and away from the support shaft. However, the support cylinder is supported with respect to the support shaft so that both seal rollers move linearly toward and away from each other. It may be slidably supported. The tilting means of the support shaft in this case can employ the same mechanism as described in the embodiment. Further, the cross-sectional shape of the support shaft is not limited to a circle, but may be a rectangle or the like. 10. The device base for tiltably supporting the support shaft does not have to be a box having a closed structure as in the embodiment, but a simple bracket-shaped one extending from the main body of the horizontal bag-making filling machine, It may be the body itself.

[0026]

As described above, according to the pressure-bonding roller device of the present invention, by adjusting the inclination of the rotation axis of the pressure-bonding roller, the seal band formed on the overlapping edge portion of the film by the pressure-bonding roller. A good sealing state can be achieved over the entire length in the width direction, and sufficient sealing strength can be obtained. Further, since the tilting means for adjusting the inclination of the rotation axis of the pressure bonding roller is provided on the support shaft on which the supporting means for rotatably supporting the pressure bonding roller is provided, the structure of the pressure bonding roller device can be simplified. Manufacturing cost can be kept low. Moreover, the structure for moving the pressing roller toward and away from each other and the tilting means can be provided at different positions,
The adjusting work by the tilting means can be easily performed in a short time.

Since the rotating member for rotating the pressure roller is tilted integrally with the support shaft and the supporting means, the rotational force from the drive source is surely transmitted to the pressure roller via the rotating member arranged on the support shaft. That is, even if the inclination of the rotation axis of the pressure roller is adjusted, the rotational force is satisfactorily transmitted to the pressure roller, and the film is well fed. Further, since the inclination of the rotation axis of the pressure roller can be adjusted in two directions, that is, the film feeding direction and the direction in which both pressure rollers face each other, fine adjustment is possible. Furthermore, since one end side of the support shaft is positioned and supported with respect to the device base and tilting means is provided on the other end side,
When adjusting the inclination of the rotation axis of the pressure roller, it is only necessary to adjust the other end of the support shaft, and the adjustment can be performed easily and in a short time. Since the pair of pressure-bonding rollers can be separated from each other, it is possible to reliably prevent the film from melting by separating both the pressure-bonding rollers from the sandwiched film when the film conveyance is stopped.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a horizontal bag-making and filling machine provided with a vertical sealing device of a preferred embodiment of a pressure roller device according to the present invention.

FIG. 2 is a vertical cross-sectional front view showing a vertical sealing device according to an embodiment.

FIG. 3 is a vertical cross-sectional side view of the vertical sealing device according to the embodiment as seen from the upstream side in the film feeding direction.

FIG. 4 is a vertical cross-sectional side view of the vertical sealing device according to the embodiment as seen from the downstream side in the film feeding direction.

FIG. 5 is a cross-sectional plan view showing a vertical sealing device according to an embodiment.

[Explanation of symbols]

18 films 18a Overlap edge 22 Seal roller (pressure roller) 24 Main body (device base) 26 Box (device base) 30 Support tube (support means) 32 spindles 34 Holder (Supporting means) 40 Opening / closing spur gear (interlocking member) 42 Tilt means 44 1st spur gear (drive side rotating member) 45 arms (device base) 60 2nd spur gear (driven side rotating member)

Continuation of the front page (56) Reference JP-A-9-39919 (JP, A) JP-A-63-138926 (JP, A) Actually opened 54-123267 (JP, U) Actually opened 51-97075 (JP , U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65B 51/10-51/30 B65B 9/06-9/08

Claims (5)

(57) [Claims] 1. A pressure-bonding roller device comprising a pair of pressure-bonding rollers (22, 22) for sandwiching and pressure-bonding a stacking edge portion (18a) of a tubular film (18) extending in a feeding direction. a is a support cylinder is disposed in the support means for rotatably supporting one of the pressure rollers (22) and (30), said supported on the support tube (30) the said one compression roller (22)
The nearer to and away from the supporting shaft to the other pressure roller (22)
(32) is provided with a holder (34) in the supporting means that is axially supported, and the support shaft (32) is a device base so that the inclination of the rotation axis of the one pressure roller (22) can be adjusted. (24,26,45) to pair
And it is tiltably arranged, by tilting by the pivot shaft (32) the inclination motion means (42),
Inclining the rotation axis of the both pressure bonding rollers (22, 22) relatively,
Adjusting the contact angle of the pressure-bonding surfaces of the pressure- bonding rollers (22, 22) when the pair of pressure-bonding rollers (22, 22) facing each other with the overlapping edge portion (18a) interposed therebetween. A pressure-bonding roller device having the above structure. 2. The supporting means (30, 34) is swingably arranged on a support shaft (32), and is integrally rotatable with the pressure roller (22) supported by the supporting means (30, 34). The driven-side rotating member (60) is provided, and the drive-side rotating member (44) for transmitting the rotational force from the drive source is provided to the support shaft (32). 2) and the driven side rotating member (60) are connected to each other to transmit the rotational force from the drive source to the pressure roller (22). 3. The tilting means (42) comprises the pressure roller (2).
3. The structure according to claim 1, wherein the rotation axis of 2) is tilted in the direction in which the pressure rollers (22, 22) face each other or in the film feeding direction and in the direction in which the pressure rollers (22, 22) face each other. Crimping roller device. 4. A support shaft (3) is attached to the device base (24, 26, 45).
The one end side of 2) is positioned and supported, and the other end side of the support shaft (32) is configured to be displaced in the direction orthogonal to the axial direction by the tilting means (42). Crimping roller device. 5. The device base (24, 26, 45) is provided with a pair of support shafts (32, 32) capable of tilting at least one of the support shafts (32). The tilting means (42) tilts with respect to the device base (24, 26, 45) and
In the (32), the supporting means (30, 34) is arranged so that the pressure roller (22) rotatably supported can be moved toward and away from the other pressure roller (22, 22). Support means (30,34,3
(0, 34) are linked by the interlocking member (40, 40), and the interlocking member (40, 4)
The support members (30, 34, 30, 34) are moved toward and away from each other by (0) so that the pressure-bonding rollers (22, 22) are moved toward and away from each other. The pressure roller device according to any one of 1.