TWI669107B - Processing device and processing method - Google Patents

Abstract

The processing device of the present invention includes: a pair of first bearings that support the rotation shaft of the pattern roller freely and rotatably; and a pair of second bearings that are arranged at positions opposite to the pair of first bearings. The rotation shaft of the anvil roller is rotatably supported; and at least one of the first bearing and the second bearing is provided with a temperature sensor and a heater, and the processing device is provided with a temperature controller, which will be provided with the temperature sensor. The bearing of the sensor and the heater is maintained at a heating set temperature, and the heater is instructed to heat the bearing based on the temperature of the bearing measured by the temperature sensor.

Description

Processing device and processing method

The present invention relates to a sheet processing device.

Previously, in the manufacture of sanitary products such as disposable diapers and menstrual napkins, hot rolling was used to join (seal) the two sheets, or cut the sheets or elastic members. For example, a processed object is sandwiched between a processing roll provided with a heater and an anvil roll, and pressurized, heated, and cut. In this case, it is desirable that the distance between the processing roll and the anvil roll is fixed.

The invention described in Patent Document 1 describes a technique of adjusting the temperature of a support roller that is in contact with the anvil roller and rotates with the anvil roller in order to adjust the interval between the processing roller and the anvil roller. By adjusting the temperature of the support roll to a specific temperature, the distance between the support roll and the anvil roll is maintained at a specific size.

In addition, Patent Document 2 describes a technique of measuring the temperature in the roll axis direction of the outer peripheral portion of the anvil roll, and performing temperature control of the anvil roll based on the measured temperature. Thereby, the gap between the pattern roll and the anvil roll is maintained constant.

[Prior technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2015-226958

[Patent Document 2] Japanese Patent Laid-Open No. 2010-131833

The present invention provides a processing device including: a pair of first bearings, which can rotate freely. A rotation shaft supporting a pattern roller; and a pair of second bearings, which are arranged at positions opposite to the pair of first bearings and rotatably support the rotation shaft of the anvil roller; and on the first bearing and At least one of the second bearings includes a temperature sensor and a heater, and the processing device includes a temperature controller for maintaining a bearing provided with the temperature sensor and the heater at a heating set temperature based on the temperature. The temperature of the bearing measured by the sensor instructs the above heater to heat the bearing.

The present invention provides a processing method that uses a pair of first bearings having a rotating shaft supporting a pattern roller to rotate freely, and supports an anvil roller rotatably disposed at a position opposite to the pair of first bearings. One of the rotating shafts is a second bearing, and a processing device including a temperature sensor and a heater is provided in at least one of the first bearing and the second bearing, and is sandwiched between the pattern roller and the anvil roller. The object to be processed rotates the pattern roller and the anvil roller to process the object to maintain the temperature of each of the first bearing and the second bearing higher than that of the pattern without heating. The temperature of the first bearing and the second bearing when the roller and the anvil roller reach the highest reaching temperature, that is, the heating set temperature is controlled.

The above and other features and advantages of the present invention will be made clearer by appropriately referring to the accompanying drawings and referring to the following description.

10‧‧‧Processing Equipment

20‧‧‧Pattern roller

21‧‧‧The first rotary shaft

22, 32‧‧‧step difference

23, 33‧‧‧ spacer

30‧‧‧ anvil roll

31‧‧‧ 2nd rotating shaft

41, 41A, 41B‧‧‧The first bearing

41S‧‧‧The lower surface of the first bearing

43‧‧‧The first bearing body

44‧‧‧The first case

45, 65‧‧‧ Outer track wheels

46, 66‧‧‧ Inner track wheels

47, 67‧‧‧ retainer

48, 68‧‧‧ rolling body

49, 49A, 49B‧‧‧Guide

50‧‧‧ opening

51, 51A, 51B‧‧‧The first temperature sensor

52, 52A, 52B‧‧‧The first heater

53, 73‧‧‧ holes

61, 61A, 61B‧‧‧ 2nd bearing

63‧‧‧Second bearing body

64‧‧‧ 2nd case

69‧‧‧ flange

71, 71A, 71B‧‧‧ 2nd temperature sensor

72, 72A, 72B‧‧‧ 2nd heater

81, 81A, 81B ‧‧‧ roller adjustment block

81D‧‧‧ (of the roller adjustment block) lower surface

81S‧‧‧ (of the roller adjustment block)

82‧‧‧male thread

100‧‧‧ pedestal

101‧‧‧Temperature Controller

102, 103, 104, 105‧‧‧ Wiring

110‧‧‧ support

111‧‧‧ lower support

111S‧‧‧ (below the support) upper surface

112‧‧‧Frame

120‧‧‧rail

130‧‧‧Pressure section

200‧‧‧ non-woven sheet

Dx‧‧‧ distance between axes

X1, X2‧‧‧Axis

FIG. 1 is a cross-sectional view of a main part of a bearing and a roll-to-roll adjusting block, which schematically shows a preferred embodiment of a processing apparatus of the present invention. The illustration of the support is omitted.

FIG. 2 is a side view schematically showing a preferred embodiment of the processing apparatus of the present invention Illustration.

Fig. 3 is an enlarged sectional view of a part of the first bearing body.

FIG. 4 is an enlarged sectional view of a part of the second bearing body.

Figure 5 is an enlarged cross-sectional view of a guide and a guide rail.

FIG. 6 is a graph showing the relationship between bearing temperature and running time, and distance between shaft centers and running time.

The invention provides a processing device and a processing method, which can suppress the variation of the interval between the axis of the pattern roller and the axis of the anvil roller and maintain normal processing even if the pattern roller (processing roller) and the anvil roller are operated for a period of time.

A preferred embodiment of the processing apparatus of the present invention will be described with reference to FIGS. 1 and 2. In FIG. 1 and FIG. 2, the direction parallel to the axis of each rotation axis in the horizontal plane is set as the X direction, and the direction orthogonal to the axis of each rotation axis in the horizontal plane is set to the Y direction , Set the vertical direction in the horizontal plane and each rotation axis to the Z direction.

As shown in FIGS. 1 and 2, the processing device 10 includes a pattern roll 20 and an anvil roll 30. The first rotary shaft 21 of the pattern roller 20 sandwiches the pattern roller 20 and is rotatably supported by a pair of first bearings 41 (41A, 41B). The second rotation shaft 31 of the anvil roller 30 sandwiches the anvil roller 30 and is rotatably supported by a pair of second bearings 61 (61A, 61B). A drive shaft (not shown) is connected to one end of each of the first and second rotation shafts 21 and 31.

It is rotatably supported by the above-mentioned bearings so that the first rotation axis 21 of the pattern roller 20 is parallel to the second rotation axis 31 of the anvil roller 30, and the peripheral surface of the pattern roller 20 and the peripheral surface of the anvil roller 30 The distance remains fixed.

Inter-roller adjusting blocks 81 (81A, 81A, 81B). Specifically, an inter-roller adjusting block 81 is sandwiched between the first bearing 41 and the upper surface 111S of the lower portion 111 of the support supporting and fixing the second bearing 61. The upper surface 111S is horizontal and smooth. The details of the support 110 will be described later. In this case, the lower surface 81D of the inter-roller adjusting block 81 is in contact with the upper surface 111S of the lower portion 111 of the support. The inter-roller adjusting block 81 can be arranged between the pair of first and second bearings 41 and 61 on either side of the pair of first and second bearings 41 and 61, and if it is arranged on both sides of the first and second bearings 41 and 61 The fine adjustment between rollers and rollers becomes easy. When the upper surface of the second housing 64 of the second bearing 61 is more exposed than the upper surface 111S of the lower portion 111 of the support body, the upper surface of the second housing 64 is used. In this case, the upper surface of the second casing 64 is horizontal and smooth.

A first temperature sensor 51 (51A, 51B) that measures the temperature of each of the first bearings 41 is disposed. Similarly, a second temperature sensor 71 (71A, 71B) that measures the temperature of each of the second bearings 61 is disposed.

Further, a first heater 52 (52A, 52B) that heats the first bearing 41 is disposed on the first bearing 41, respectively. Similarly, a second heater 72 (72A, 72B) that heats the second bearing 61 is disposed on the second bearing 61.

The temperature sensor and heater may be any one of the first temperature sensor 51 and the first heater 52, and the second temperature sensor 71 and the second heater 72, and more preferably as described above. Have both.

Furthermore, a temperature controller 101 is provided to maintain the temperature of the first bearing 41 and the second bearing 61 at a heating set temperature. The temperature controller 101 is based on the temperature indication of each of the first bearings 41 measured by the first temperature sensor 51 (51A, 51B). The first heater 52 (52A, 52B) performs the first bearing 41. heating. Then, based on the temperature instruction of each of the second bearings 61 measured by the second temperature sensor 71 (71A, 71B), the second heater 72 (72A, 72B) performs the second bearing 61. heating.

Specifically, the temperature controller 101 receives the temperature measurement signals from the first and second temperature sensors 51 and 71 and compares them with the heating set temperature. When the temperature measurement signal is lower than the heating set temperature, an unillustrated one which supplies electric power to the heater (one or both of the first and second heaters 51 and 71) of the bearing whose temperature is relatively low is measured. Turn on the power and heat the bearings. When the temperature measurement signal is higher than the heating set temperature but the power is on, turn the power off. On the other hand, when the power supply is OFF, the OFF state is maintained except when the temperature measurement signal is lower than the heating set temperature. The transmission of the temperature measurement signal from the temperature sensor to the temperature controller may be wireless or wired. In addition, the indication of the power supply of the heater may be wired or wireless. In the example shown in the figure, each of the first temperature sensor 51, the first heater 52, the second temperature sensor 71, and the second heater 72 and the temperature controller 101 use wirings 102, 103, 104, 105 connections. Furthermore, it is preferable that the temperature controller 101 includes a power supply for supplying electric power for heating the heater. In this case, the power supply is instructed to be turned on or off in the temperature controller 101.

The above-mentioned constituent members will be specifically described below.

The pattern roll 20 is, for example, a processing roll for joining (sealing) between two sheets, or cutting a sheet or an elastic member. This processing roll is a roll in which, for example, an embossed pattern or a cut pattern is arranged on the peripheral surface, and is made of, for example, carbon steel, alloy steel, stainless steel, or the like.

The anvil roll 30 is a roll having a smooth peripheral surface, and is arranged to face the pattern roll 20 , and is made of, for example, carbon steel, alloy steel, stainless steel, or the like.

The first rotation shaft 21 of the pattern roller 20 is rotatably supported by a pair of first bearings 41A and 41B on both sides of the pattern roller 20. The second rotation shaft 31 of the anvil roller 30 is rotatably supported on both sides of the anvil roller 30 by a pair of second bearings 61A and 61B.

The first bearing 41 includes a first bearing body 43 and a first housing 44 disposed around the first bearing body 43. The second bearing 61 also has the same structure as the first bearing 41, and includes a second bearing body 63 and a second housing 64 disposed around the second bearing body 63. The first and second housings 44 and 64 are preferably divided into two parts on the YZ plane in order to facilitate the mounting of the first and second bearing bodies 43 and 63 (see FIG. 5). The first and second housings 44 and 64 are integrated with the first and second bearing bodies 43 and 63 by bolting, welding, and press-fitting.

As shown in FIG. 3, the first bearing body 43 is a rolling bearing, and is composed of an outer track wheel 45, an inner track wheel 46, a retainer 47, and a rolling body 48 including a plurality of balls or rollers. Similarly, as shown in FIG. 4, the second bearing body 63 is also a rolling bearing, and is composed of an outer track wheel 65, an inner track wheel 66, a retainer 67, and a rolling body 68 including a plurality of balls or rollers. Furthermore, since the second bearing 61 supporting the second rotating shaft 31 of the anvil roller 30 receives a radial load larger than that of the first bearing 41, it is also preferable to use the rolling elements 68 arranged in a plurality of rows (in the example shown in the figure, it is 2)).

Generally, high-carbon chromium bearing steel is used for each track wheel of the bearing. For example, SUJ2 (JIS G4805: 2008 high carbon chromium bearing steel steel) is mentioned. The high carbon chromium bearing steel has a thermal conductivity of 46 W / mK and good thermal conductivity.

As shown in FIGS. 1 and 2, the first housing 44 is a housing to which the outer track wheel 45 of the first bearing body 43 is fixed. For example, the outer track wheel 45 is preferably fixed to the inside of the first casing 44 by a fixing mechanism. Examples of the fixing mechanism include fixing by shrink fit and fixing by bolt fastening.

In addition, the first housing 44 is freely arranged with respect to the guide rails 120 including two parallel rails arranged on both sides of the support body 110 erected and fixed to the pedestal 100. Specifically, on both surfaces of the first housing 44 orthogonal to the first rotating shaft 21 mounted on the first bearing 41, flange-shaped ones are integrally disposed so that the first housing 44 can slide up and down along the guide rail 120. Guide 49 (49A, 49B) (refer also to FIG. 5). The guide 49 is provided with an opening portion 50 through which the first rotating shaft 21 can be movably inserted. In addition, in order to sandwich the guide rails 120 on both opposite sides of the guide 49, the first housing 44 can be slid in the rising direction (the direction of the arrow A) and the falling direction (the direction of the arrow B). Therefore, the three sides of the side surface of the guide rail 120 slide on the opposite side of the guide member 49 disposed on the opposite side and the one surface of the first casing 44 therebetween, so that it can slide stably without shaking. Furthermore, if the first casing 44 is raised and lowered steadily without shaking, the lifting operation of the first casing 44 may not be sliding.

In this way, since the lifting operation can be performed by the stable sliding of the first casing 44, no lateral deviation occurs during the lifting operation of the first casing 44. Therefore, by using the fine adjustment of the roller-to-roll adjusting block 81, it is also possible to perform fine lifting in a stable state, so that the fine adjustment of the roller interval can be performed with high accuracy.

The support body 110 is fixed on the pedestal 100, and includes a support body lower portion 111 to which the second bearing 61 is fixed, and a frame body 112 arranged on the support body. Rails 120 are arranged on both sides of the inside of the frame body. Alternatively, the frame body 112 itself may constitute the guide rail 120. In this way, the guide rail 120 may be integrated with the support body 110 or may be a different body. In addition, the guide rail 120 is not limited to a rectangular column shape, and may be a columnar body, a columnar body, a polygonal columnar body, etc., as long as the first case 44 can be raised and lowered.

Furthermore, from the viewpoint of improving the rigidity of the support 110, it is preferable that the support lower portion 111 and the frame body 112 are integrally formed.

The second casing 64 is a casing to which the outer track wheel 65 of the second bearing body 63 is fixed. For example, it is preferable to fix the outer track wheel 65 on the inner side of the second casing 64 by a fixing mechanism. Examples of the fixing mechanism include fixing by shrink fit and fixing by bolt fastening.

The second casing 64 is attached to and fixed to the lower portion 111 of the support body fixed to the pedestal 100. That is, the second casing 64 is fixed to the pedestal 100 via the support lower portion 111. Preferably on the second case A flange 69 is provided on 64 to easily attach the second casing 64 to the lower portion 111 of the support body. That is, the second bearing body 63 is fixed in the second housing 64, and is fixed to the lower support portion 111 by a flange 69 fixed to one surface of the second housing 64. Examples of the method of fixing the flange 69 to the second case 64 include fixing with bolts, welding, and press-fitting. Of course, the second casing 64 and the flange 69 may be integrally formed. Further, as a method for fixing the flange 69 to the lower portion 111 of the support body, there are fixing by bolt fastening, welding, press-fitting, and the like. The second casing 64 may be directly fixed to the pedestal 100. In addition, the lower support portion 111 to which the second casing 64 is fixed is also formed on the second casing 64. That is, the second housing 64 is fixed to the lower support portion 111 via the flange 69 so as to penetrate the lower support portion 111.

The first housing 44 includes a pressurizing portion 130 that presses the first housing 44 (first bearing 41) in a direction toward the second housing 64 (second bearing 61), that is, downward, with a fixed pressure. It is preferable that the pressurizing part 130 applies a pressure to the object to be processed in the direction of arrow P to perform the required processing. For example, when the cylinder diameter is 80 mm, the pressure is 0.1 MPa or more, preferably 1.0 MPa or more, and more preferably 2.0 MPa or more. It is 10.0 MPa or less, preferably 8.0 MPa or less, and more preferably 5.0 MPa or less. Specifically, it is 0.1 MPa or more and 10.0 MPa or less, preferably 1.0 MPa or more and 8.0 MPa or less, and more preferably 2.0 MPa or more and 5.0 MPa or less. When the pressing force of the pressurizing part 130 is equal to or more than the aforementioned lower limit value, sufficient processing can be performed. In addition, since the pressing force of the pressurizing part 130 is equal to or less than the above-mentioned upper limit value, there is no risk of cutting marks or breakage of the workpiece.

The first rotary shaft 21 is configured such that the side on which the pattern roller 20 is mounted is thicker than the side on which each first bearing 41 is mounted. Spacers 23 for positioning the first bearings 41 with respect to the pattern roller 20 are attached to the first rotary shafts 21 between the stepped portions 22 and the respective first bearings 41. The spacer 23 prevents those first cases 44 from directly contacting the first rotating shaft 21. The first bearing body 43 determines the position from the pattern roller 20 by the spacer 23 and is fixed at a specific position of the first rotating shaft 21.

Similarly, the second rotary shaft 31 is configured such that the side on which the anvil roller 30 is mounted is thicker than the side on which the respective second bearings 61 are mounted. Spacers 33 for positioning the second bearings 61 with respect to the anvil roller 30 are attached to the second rotation shafts 31 between the stepped portions 32 and the second bearings 61, respectively. The spacers 33 prevent those second casings 64 from directly contacting the second rotating shaft 31. The second bearing body 63 determines the position from the anvil roller 30 by the spacer 33 and is fixed at a specific position of the second rotating shaft 31.

The first temperature sensor 51 is arranged by being press-fitted into a hole (not shown) provided in the first housing 44 in which the first bearing 41 of the first heater 52 is arranged or bolted. The first temperature sensor 51 is preferably disposed below the first housing 44, that is, near the second bearing 61. Similarly, the second temperature sensor 71 is press-fitted into a hole (not shown) provided in the second housing 64 of the second bearing 61 of the second heater 72 or fixed by bolts. The second temperature sensor 71 is preferably disposed above the second housing 64, that is, near the first bearing 41. Alternatively, the first temperature sensor 51 may be attached to the lower surface of the first casing 44 of the first bearing 41 on which the first heater 52 is disposed. Similarly, the second temperature sensor 71 may be attached to the upper surface of the second casing 64 of the second bearing 61 where the second heater 72 is disposed. Examples of the first and second temperature sensors 51 and 71 include a Chromel (registered trademark) -Alumel (registered trademark) thermocouple, a copper-constantan thermocouple, and the like. In addition, an NTC (Negative Temperature Coefficient) thermistor can be cited. Especially, the ChromelAlumel thermocouple is from -200 ° C to 1000 ° C. The thermoelectromotive force is linear with respect to temperature, so it is better. When the first and second temperature sensors 51 and 71 are attached to the case, a thermally conductive adhesive, tape, or the like can be used for the attachment. In addition, it is preferable that the sensing portion of the temperature sensor is covered with a heat insulating material. Covered with heat-insulating material, the influence of the temperature of the external environment can be eliminated, and the temperature of the bearing can be measured more accurately.

Further, a plurality of holes 53 are arranged in the first housing 44 in parallel with the axis X1 of the first rotating shaft 21 and at equal intervals from the axis X1 around the axis X1. Embedded in each hole 53 First heater 52. That is, a plurality of first heaters 52 are arranged in the first casing 44.

Similarly, a plurality of holes 73 are arranged in the second housing 64 in parallel with the axis X2 of the second rotating shaft 31 and at equal intervals from the axis X2 around the axis X2. A second heater 72 is embedded in each hole 73. That is, the plurality of second heaters 72 are arranged in the second casing 64.

Preferably, the first and second heaters 52 and 72 are constituted by a cartridge heater. As an example of the cartridge heater, there is a heating element for resistance heating disposed in the center of a metal outer tube, and the heating element is connected to a lead wire. In addition, heat-resistant insulators are buried on both sides of the heating element, and both ends of the outer tube are sealed by a top cover. In addition, as the first and second heaters 52 and 72, a coil heater may be used in addition to the cartridge heater. As long as it can be inserted into the hole to heat the casing, various types of heaters can be used.

The heating set temperature of the first bearing 41 and the second bearing 61 is the same as that of the first bearing 41 and the second bearing 61 when the pattern roller 20 and the anvil roller 30 are operated without heating by the first and second heaters 52 and 72. The maximum temperature reached is approximately equal to or higher than the maximum temperature reached.

The heating set temperature is 1 ° C or higher, preferably 5 ° C or higher, and more preferably 10 ° C or higher. In addition, a range higher than the maximum reaching temperature of 50 ° C or lower is preferably a range higher than 40 ° C and more preferably a range higher than 30 ° C. Specifically, the range is 1 ° C or higher and 50 ° C or higher, preferably 5 ° C or higher and 40 ° C or lower, and more preferably 10 ° C or higher and 30 ° C or lower.

Here, the above-mentioned maximum reaching temperature will be described. The so-called maximum reaching temperature means the temperature at which the heat and heat dissipation of the bearing becomes in equilibrium.

Usually, the bearing is heated by the heat transmitted along the rotating shaft and the heat of the bearing itself. Specifically, the first bearing 41 and the second bearing 61 are mainly heated by frictional heat or the like generated by the rolling bodies of the bearings when the pattern roller 20 and the anvil roller 30 are running. The pattern roller 20 and the anvil roller When it is heated to a certain temperature and running, the bearing is heated by the heat transmitted from the roller along the rotation axis. As shown in FIG. 6, in the previous case where the bearing is not heated by the heater, when the device starts to operate, the temperatures of the bearings on the pattern roller OP side, DR side, anvil roller OP side, and DR side rise. And the distance Dx between the centers becomes larger. And if a fixed time elapses, the heating amount and the heat dissipated to the surrounding environment of the bearing reach an equilibrium state, and the temperature of the bearing no longer rises. The bearing temperature at this time is the highest reaching temperature Tm. The maximum temperature Tm varies with each bearing. The amount of change in the distance Dx along with this axis also decreases.

A drive shaft (not shown) is connected to the first and second rotating shafts 21 and 31 on either side of the shaft. Therefore, the heat transmitted along the rotating shaft is easily dissipated on the drive shaft side (DR side), so the temperature of the bearing on the drive shaft side tends to be lower. In other words, the temperature of the bearing on the side where the drive shaft is not connected (OR side) is difficult to dissipate heat, so it tends to be higher than the drive shaft side. In addition, the pattern roll 20 and the anvil roll 30 may have different shapes and different materials. When the material is different, the thermal conductivity is different. In this case, the maximum temperature Tm of the first bearing 41 and the second bearing 61 may be different.

As described above, when the maximum reach temperature Tm is different for each bearing, it is preferable to set the heating set temperature T0 to be almost equal to the maximum reach temperature Tm or to a temperature higher than the maximum reach temperature for all the bearings. control. In addition, the heating set temperature T0 may be set to the same temperature, and different temperatures may be set for each bearing if the above temperature conditions are satisfied, but it is preferable that each bearing is set to the same temperature. The reason is that if the heating set temperature is different between the bearings, a heat flow is generated between the bearings due to the heating set temperature difference, and the temperature control becomes complicated.

Further, as shown in FIG. 6, in the processing apparatus of the present invention, the first and second bearings 41 and 61 on the DR side and the OR side of each of the pattern roller 20 and the anvil roller 30 are set to the heating set temperature T0 as, for example, 70 ° C. And the device is in a state where the first and second bearings 41 and 61 are heated to a set temperature T0. Began to run. When the operation is started, the heating of the first and second heaters 52 and 72 is stopped. Therefore, the heat radiation from the first and second housings 44 and 64 exceeds the heat generated by the operation of the first and second bearings 41 and 61, and the temperature of the first and second bearings 41 and 61 is lower than the heating set temperature. T0. The reason is that the heat of the bearing body is taken away by the housing and dissipated from the housing. Therefore, the first and second heaters 52 and 72 must be heaters that generate more heat than the heat generated by subtracting the heat generated from the bearing from the amount of heat dissipated from the housing.

After the device starts to operate, the bearing temperatures of the first and second bearings 41 and 61 are also measured by the first and second temperature sensors 51 and 71. If the measured temperature of the bearing is lower than the heating set temperature T0, the temperature controller 101 sets the power of the first and second heaters 52 and 72 corresponding to the bearing lower than the heating set temperature T0 to the ON state. In addition, the heater is heated by the heater whose power is turned on, so that the temperature of the bearing rises. After that, the temperature of the bearing is also measured. If the temperature of the bearing becomes the heating set temperature T0, the power of the heater is turned off again. In this way, the measured temperature of each bearing is compared with the heating set temperature T0, and the power of the heater corresponding to the bearing is turned on and off repeatedly, thereby maintaining the temperatures of the first and second bearings 41 and 61 at the heating set temperature. T0. By controlling the bearing temperature to the heating set temperature T0, the distance Dx between the axes is hardly changed and is approximately fixed. Therefore, the processing device 10 can be operated with the distance Dx between the axes being stabilized. In addition, the distance Dx between the shaft centers is obtained by simulation based on the distance between the shaft centers before the bearings are running, the diameter of each bearing, and the coefficient of thermal expansion of each bearing and the temperature of the bearing as parameters.

Further, as shown in FIG. 1 and FIG. 2, it is preferable that the pair of first bearings 41 has an inner track wheel 46 of the pair of one-side first bearings 41A as interference with respect to the first rotating shaft 21 For the fit, the inner track wheel 46 of the first bearing 41B on the other side is turned to fit. It is preferable that the rotation fit is the free end of the first rotating shaft 21, that is, the side not connected to the other shaft.

The second bearing 61 is a rolling bearing having the same structure as the first bearing 41. So a pair The second bearing 61 is preferably an interference fit with respect to the second rotating shaft 31 on the inside of the pair of one-side second bearings 61A, and the inside of the second bearing 61B on the other side. Set to rotation fit. It is preferable that the rotation fit is the free end of the second rotating shaft 31, that is, the side not connected to the other shaft.

As described above, by setting the inner track wheel supporting the bearing on one side of the rotating shaft as a rotation fit, even if the rotating shaft expands in the axial direction to generate a thrust load, the thrust load does not affect the bearing. Therefore, it is possible to prevent the bearing from being damaged due to the thrust load.

Furthermore, although not shown, a sleeve is fitted between the inner track wheel of the bearing and the rotating shaft embedded therein, and the inner track wheel and the rotating shaft are fixed, thereby replacing the interference fit. In addition, a screw thread and a nut arranged on the tapered surface of the sleeve may be screwed together to fasten the sleeve to the rotating shaft and fix it.

The axis X1 of the first rotation axis 21 of the pattern roll 20 and the axis X2 of the second rotation axis 31 of the anvil roll 30 are preferably arranged in parallel. By arranging the axes X1 and X2 in parallel, the distance between the peripheral surface of the pattern roller 20 and the peripheral surface of the anvil roller 30 is maintained constant. When the axes X1 and X2 are adjusted in parallel, the roller-to-roller adjusting block 81 disposed between the first bearing 41 and the second bearing 61 is moved. The roll-to-roll adjustment block 81 will be described below.

Each of the first bearings 41 and the second bearings 61 facing each other includes an inter-roller adjusting block 81 (81A, 81B). The inter-roller adjusting block 81 has a hexahedral block shape, that is, it has an upper surface 81S as a surface on the side of the first bearing 41, a lower surface 81D as a surface on the side of the second bearing 61, and four side surfaces. As shown in FIG. 2, the inter-roller adjusting block 81 has an upper surface 81S having a slope with respect to a horizontal plane in the Y direction. That is, as described with reference to FIG. 2, the position on the left side of the upper surface 81S of the inter-roller adjusting block 81 is higher than the position on the right side. On the other hand, in the X direction, the upper surface 81S is parallel to the horizontal plane. The lower surface 41S side of the first housing 44 of the first bearing 41, that is, the surface on the side between the roller adjustment blocks 81 also corresponds to the surface 81S on the upper surface of the roller adjustment block 81, and has a slope with respect to the horizontal plane in the Y direction. . change In other words, the lower surface 41S of the first housing 44 of the first bearing 41 and the upper surface 81S of the inter-roller adjusting block 81 are parallel surfaces.

The inclination of the inter-roller adjusting block 81 is 0.1 ° or more with respect to the horizontal plane, preferably 0.2 ° or more, and more preferably 0.3 ° or more. In addition, it is 10 ° or less with respect to the horizontal plane, preferably 5 ° or less, and more preferably 2 ° or less. Specifically, it is 0.1 ° or more and 10 ° or less, preferably 0.2 ° or more and 5 ° or less, and more preferably 0.3 ° or more and 2 ° or less. When the inclination is larger than the above-mentioned lower limit value, the adjustment width of the distance between the axes can be fully obtained, and the distance between the axes can be fully adjusted. On the other hand, since the inclination is within the above-mentioned upper limit value, the adjustment width of the distance between the axes will not be too large, and it is easy to make small adjustments.

The inter-roller adjusting block 81 is made of carbon steel for mechanical structure (for example, S45C). S45C is a steel material selected when strength is particularly required, and has excellent cutting and grinding workability. Therefore, the carbon steel for mechanical structure is suitable as a material for the inter-roller adjusting block 81 which is slidably arranged between the first casing 44 and the second casing 64. The sliding surfaces of the upper and lower surfaces of the roller-to-roller adjusting block 81 and the first and second casings 44 and 64 are preferably set to have a flatness of 100 μm or less in order to prevent sticking or burning. Most depressions around μm. For example, it is preferable to scrape the processed surface by scraping. Similarly, the surfaces of the first and second housings 44 and 64 that are in contact with the sliding surface of the roller-to-roller adjusting block 81 are preferably scraped surfaces that are repaired by scraping. By forming a scraped surface, the adhesion between the surfaces is reduced, and sliding becomes easy. In addition, the lubricating oil also easily enters the sliding surface. Therefore, when the inter-roller adjusting block 81 is slightly moved, since the initial adjustment of the inter-roller adjusting block 81 does not require a very large force, it is easy to perform the fine adjustment. In addition, a groove (not shown) may be arranged on the sliding surface of the roller-to-roller adjusting block 81, and a not-shown ridge portion having a shape corresponding to the groove may be arranged on the surface on the casing side where the sliding surface slides. For example, the groove is a groove of a V-shaped cross section, and the convex portion is a convex portion of an inverted V-shaped cross section that can slide and move in the groove of the V-shaped cross section. In this way, by combining the groove and the ridge portion, when the inter-roller adjusting block 81 is moved, it can be accurately moved without lateral deviation.

On the other hand, the lower surface 81D of the inter-roller adjusting block 81 and the upper surface 111S of the lower support portion 111 are parallel surfaces with respect to the horizontal plane. That is, the upper surface 81S and the lower surface 81D of the inter-roll adjustment block 81 are not parallel. In addition, grooves and protruding portions (not shown) as described above may be arranged on the sliding surface of the lower surface 81D of the inter-roller adjusting block 81 and the second casing 64. It is also preferable that these sliding surfaces be scraped.

The movement of the inter-roller adjusting block 81 is performed by screwing. Specifically, a female thread (not shown) is cut on the support body 110 at right angles to the first and second rotating shafts 21 and 31, and a male thread 82 screwed with the female thread is supported to rotate freely. It is arrange | positioned so that it may become the substantially center of the side surface of the roller-to-roller adjustment block 81. The male thread 82 is preferably rotated forward in the horizontal direction. Therefore, the female thread is cut on the support body 110 by rotating the male thread 82 in the horizontal direction.

Therefore, when the male thread 82 is rotated, the inter-roller adjusting block 81 moves in the horizontal direction with respect to the first and second rotation axes 21 and 31 in the Y direction, which is a right angle. For example, by rotating the male thread 82 in the forward direction, the inter-roller adjusting block 81 can be moved in the direction of arrow C, and by rotating the male thread 82 in the reverse direction, the inter-roller adjusting block 81 can be moved in the arrow D direction. Since the upper surface 81S and the lower surface 81D of the inter-roller adjusting block 81 are not parallel and the inter-roller adjusting block 81 can move in the horizontal direction, the distance between the axes can be adjusted.

Furthermore, as a method of moving the inter-roller adjusting block 81, a ball screw may be used. By using a ball screw, the movement of the roller-to-roller adjusting block 81 becomes smoother.

It is preferable that the inter-roller adjustment block 81 includes a third temperature sensor and a third heater (not shown) for measuring the temperature. In addition, it is preferable that the temperature controller 101 also has a function of maintaining the inter-roller adjustment block 81 at a heating set temperature. That is, the temperature controller 101 is also based on the third temperature sensor. The measured temperature of the inter-roller adjustment block 81 instructs the third heater to heat the inter-roller adjustment block 81.

The third temperature sensor may be the same as the first temperature sensor 51, and may be attached to the center of the side surface of the roller-to-roller adjusting block 81, for example. This attaching method is the same as the first temperature sensor 51 described above. The position where the third temperature sensor is attached is not limited to the above position as long as the position where the temperature of the inter-roller adjusting block 81 can be measured.

It is preferable that a plurality of holes (not shown) be arranged parallel to the direction orthogonal to the axis X1 of the first rotating shaft 21, for example, at equal intervals. A third heater is embedded in each hole. That is, the third heater is disposed in the inter-roller adjustment block 81. Preferably, the third heater is constituted by a cartridge heater. As the cartridge heater, the same one as the first heater 52 is used. In addition, as long as the inter-roller adjusting block 81 can be inserted into the hole, various types of heaters such as a coil heater can be used.

A preferred embodiment of the processing method of the present invention will be described with reference to FIGS. 1 and 2.

In the processing method of this embodiment, for example, the processing device 10 described above is used. That is, it has the following: a pair of first bearings 41 which support the rotation shaft 21 of the pattern roller 20 freely and rotatably; and a pair of second bearings 61 which are disposed opposite to the pair of first bearings 41 The rotation shaft 31 of the anvil roller 30 is rotatably supported in this position. Furthermore, at least one of the first bearing 41 and the second bearing 61 is provided with a temperature sensor and a heater. The first bearing 41 includes a first temperature sensor 51 and a first heater 71, and the second bearing 61 includes a second temperature sensor 52 and a second heater 72.

In addition, the processing device 10 is used to sandwich the non-woven sheet 200 as a workpiece between the pattern roll 20 and the anvil roll 30, and rotate the pattern roll 20 and the anvil roll 30 to perform processing.

At this time, the temperature is controlled by the temperature controller 101 so that the temperature of each of the first bearing 41 and the second bearing 61 is maintained at the heating set temperature. The heating set temperature is higher than the The temperature at which the first bearing 41 and the second bearing 61 reach the highest temperature when the pattern roller 20 and the anvil roller 30 are operated by heating.

A specific temperature control method of the temperature controller 101 will be described.

As an example, the temperature control of the first bearing 41A will be described.

The pattern roll 20 and the anvil roll 30 are operated. As the two rollers are driven, the temperature of the first bearing 41A increases. In addition, the highest reaching temperature of the first bearing 41A is set to Tm. At this time, the heating set temperature T0 of the first bearing 41A is higher than the maximum reaching temperature by 1 ° C or higher, preferably 5 ° C or higher, and more preferably 10 ° C or higher. In addition, a range higher than the maximum reaching temperature of 50 ° C or lower is preferably a range higher than 40 ° C and more preferably a range higher than 30 ° C. Specifically, it is set to a range of 1 ° C to 50 ° C higher than the maximum reach temperature Tm, preferably a range of 5 ° C to 40 ° C, and more preferably 10 ° C to 30 ° C. Range of temperature.

Then, the following operation is performed so that the temperature of the first bearing 41A becomes the heating set temperature T0.

The temperature T1 (not shown) of the first bearing 41A is measured by a first temperature sensor 51 provided in the first housing 44. The temperature controller 101 determines whether the temperature T1 is equal to or lower than the heating set temperature T0. Therefore, the temperature setting temperature T0 of each bearing is set in advance in the temperature controller 101. When the temperature T1 measured by the first temperature sensor 51 is lower than the heating set temperature T0, the temperature controller 101 sends a heating instruction to the first heater 52, and the first heater 52 is operated to heat the first bearing 41A. In addition, when the heating instruction is given to the first heater 52 and when the heating instruction is not given, the ON and OFF instructions of a power source (not shown) that supplies power to the first heater 52 as described above are used. get on.

Thereafter, the temperature T1 of the first bearing 41A is also measured by the first temperature sensor 51. In addition, as described above, the temperature T1 and the heating set temperature T0 are compared. In the first temperature sensor 51 This series of measurement operations is performed before the measured temperature T1 exceeds the heating set temperature T0. When the temperature T1 measured by the first temperature sensor 51 exceeds the heating set temperature T0, the temperature controller 101 is used to stop the heating of the first heater 52. That is, the power supply for supplying power to the first heater 52 is turned OFF.

After the heating of the first heater 52 is stopped, the temperature T1 is also measured. When the temperature T1 is equal to or lower than the heating set temperature T0, the first bearing 52 is heated again by the first heater 52.

As described above, the heating set temperature T0 can be used as a reference, and the temperature can be controlled such that the temperature T1 of the first bearing 41A is always the heating set temperature T0.

The temperature of the first bearing 41B and the second bearings 61A and 61B can be controlled similarly to the first bearing 41A. At this time, the heating set temperature T0 is set for each bearing based on the highest reaching temperature Tm. The heating set temperature T0 of the first bearing 41 and the heating set temperature T0 of the second bearing 61 are set to the same temperature. The heating set temperature T0 set for each bearing in this manner is preferably the same temperature in terms of easy temperature control.

Usually, the maximum temperature Tm of each bearing is different. It is caused by the temperature environment of the installation position of each rotating shaft, and the difference in the connection condition with the drive shaft. Therefore, at the heating set temperature T0, the distance Dx1 between the shaft centers of the rotating shafts supported by the first bearing 41A and the second bearing 61A facing each other and the first bearing 41B facing the other and The distance Dx2 between the centers of the rotating shafts supported by the second bearings 61B is different. In this case, the fine adjustment is performed by using the inter-roller adjusting block 81 so that the distances between the axes Dx1 and Dx2 are equal.

At this time, since the second bearing 61 that supports the second rotation shaft 31 of the anvil roller 30 is fixed to the lower portion 111 of the support body, the position of the axis X2 of the second rotation shaft 31 can be kept horizontal and not moved. Therefore, the distance between the shaft centers is adjusted by using the inter-roller adjusting block 81 to adjust the height of the shaft center X1 while keeping the shaft center X1 horizontal. That is, the rotation is such that the distance between the axes Dx1 = the distance between the axes Dx2 The male screw 82 moves the inter-roller adjusting block 81 to perform the adjustment. In addition, it is preferable to measure the amount of movement of the first bearing 41 in the up-and-down direction with respect to the amount of rotation of the male thread 82, that is, the amount of movement of the axis X1.

The temperature control of the bearings of the temperature controller 101 is performed on the four bearings of the first bearings 41A and 41B and the second bearings 61A and 61B. Even if the above-mentioned temperature control is performed only on either the first bearing 41 or the second bearing 61, although the accuracy is reduced, the distance between the centers of the first rotating shaft 21 and the second rotating shaft 31 can be fixedly maintained. In this case, the position of the axial center X1 of the first rotating shaft 21 with respect to the axial direction X2 of the second rotating shaft 31 is finely adjusted using the inter-roll adjusting block 81 as described above.

The axis X2 of the second rotation shaft 31 supported by the second bearing 61 freely rotates horizontally. In this state, the axial center X1 of the first rotating shaft 21 supported by the first bearing 41 to be freely adjusted is parallel to the above-mentioned axial center X2. The parallel adjustment is performed after the first and second rotating shafts 21 and 31 are operated, and the temperatures of the first bearing 41 and the second bearing 61 are increased to reach the maximum reaching temperature Tm, respectively. In addition, the parallel adjustment is to move the inter-roller adjusting block 81 by the rotation of the male thread 82, and use the slope of the upper surface of the inter-roller adjusting block 81 to lift the first bearing 21 to rise, or by its own weight and The pressure of the pressing portion 130 decreases it. At this time, the male thread 82 is rotated by a necessary amount of rotation, thereby raising or lowering the first bearing 41 to adjust the distance Dx (Dx1, Dx2) between the shaft centers. The inter-axis distance Dx1 is the inter-axis distance between the first bearing 41A and the second bearing 61A, and the inter-axis distance Dx2 is the inter-axis distance between the first bearing 41B and the second bearing 61B. Therefore, by adjusting the position of the roller-to-roller adjusting block 81, the distances Dx1 and Dx2 between the axes can be adjusted.

With the processing device 10 described above, the temperature controller 101 can be used to control the temperature of the first and second bearings 41 and 61. Therefore, even during the roller operation, the first rotary shaft 21 of the pattern roller 20 and the anvil roller can be controlled The distance Dx between the centers of the second rotating shaft 31 of 30 is maintained at a fixed distance. Also, by processing Even if the pattern roller 20 and the anvil roller 30 are operated for a period of time, the variation in the interval between the first rotating shaft 21 and the second rotating shaft 31 can be suppressed, and normal processing of the workpiece can be maintained.

Thus, for example, when the pattern roll 20 is operated in the direction of the arrow M, and the anvil roll 30 is operated in the direction of the arrow N, for example, when the non-woven sheet 200 is processed as a workpiece, it is possible to prevent the non-woven fabrics from being poorly bonded to each other or the non-woven fabric being cut. Defective machining. Therefore, the nonwoven fabrics can be joined to each other or the nonwoven fabric can be cut.

Moreover, in the processing device 10, since the second bearing 61 is fixed to the lower support portion 111, even if the second bearing 61 is heated, part of the heat is radiated to the support lower portion 111 side. Therefore, thermal expansion of the second bearing 61 is suppressed. Therefore, the distance between the axial center X1 of the first rotating shaft 21 supported freely by the first bearing 41 and the axial center X2 of the second rotating shaft 31 supported freely by the second bearing 61 is suppressed. Changes in Dx. However, in order to control the distance Dx between axes with high accuracy, it is preferable to arrange the second temperature sensor 71 and the second heater 72 on the second bearing 61 side as described above. Thereby, the distance Dx between the axes can be controlled with high accuracy.

Examples of a preferable workpiece to be processed by the processing device 10 include a composite sheet, which includes two sheets and a plurality of elastic members arranged in an elongated state between the two sheets and extending unidirectionally. As the two sheets, various non-woven fabrics or films can be used, and particularly non-woven fabrics can be preferably used. The two sheets may be similar to each other or different types. Examples of the nonwoven fabric include spunbond nonwoven fabric, hot air nonwoven fabric, spunlace nonwoven fabric, and meltblown nonwoven fabric. A laminate of any two or more of these nonwoven fabrics may be used.

According to the above-mentioned processing method using the above-mentioned processing device 10, it is possible to stably perform a waste product that is easy to be generated when processing into a sheet due to the difficulty in stable conveyance, especially the MD direction elongation at a load of 2N / 50mm is 0.5 to 5% Processing of left and right stretchable sheets. By finely adjusting the roller interval of the above-mentioned processing device 10 with high accuracy, it can be preferably used for ductile materials having the above-mentioned elongation. Processing of stretched sheets such as polypropylene fibers. The so-called MD is the abbreviation of Machine Direction.

The above-mentioned processing includes joining of two sheets (for example, joining by embossing), cutting of an elastic member of the composite sheet, and the like. It is particularly suitable for cutting an elastic member (for example, a rubber thread) disposed between the thinner sheets without cutting the thinner sheets having the above-mentioned elongation.

The composite sheet is suitable for an absorbent article or the like, and is preferably used as an exterior body on the outer surface side of an absorbent body disposed in, for example, a shorts-type disposable diaper.

Regarding the above embodiment, the present invention further discloses the following processing apparatus and processing method.

<1>

A processing device includes: a pair of first bearings that support a rotation shaft of a pattern roller in a freely rotatable manner; and a pair of second bearings that are arranged at positions opposite to the pair of first bearings and A rotation shaft supporting the anvil roller is rotatably supported; and at least one of the first bearing and the second bearing is provided with a temperature sensor and a heater, and the processing device is provided with a temperature controller, which will have the temperature If the sensor and the bearing of the heater are maintained at a heating set temperature, the heater is instructed to heat the bearing based on the temperature of the bearing measured by the temperature sensor.

<2>

The processing device according to <1>, in which the temperature controller operates the heater to heat the bearing when the bearing measured by the temperature sensor is lower than the heating set temperature, and the temperature sensor is operated by the temperature sensor. When the measured bearing is higher than the heating set temperature, the operation of the heater is stopped to maintain the temperature of the bearing at the heating set temperature.

<3>

The processing device according to <1> or <2>, wherein the temperature sensor includes: a first temperature sensor that measures the temperature of the first bearing; and a second temperature sensor that measures the first temperature. 2 bearing temperature; and the heater includes: a first heater that heats the first bearing; and a second heater that heats the second bearing.

<4>

The processing device according to <3>, wherein the first bearing has a first bearing body and a first housing arranged around the first bearing body, and the second bearing has a second bearing body and is arranged in the first bearing body. In the second housing around the second bearing body, the first heater is disposed on the first housing, and the second heater is disposed on the second housing.

<5>

The processing device according to <4>, wherein the first housing has a hole parallel to the axis of the rotation axis of the pattern roller, and is arranged around the axis, and the first heater is provided in the hole. .

<6>

The processing device according to <4> or <5>, wherein the second housing has a hole parallel to the axis of the rotation axis of the anvil roll, and is arranged around the axis, and has the above-mentioned hole in the hole. 2nd heater.

<7>

The processing device according to any one of <4> to <6>, wherein the second casing is fixed On the pedestal, the first housing is freely arranged along a guide rail fixed to the pedestal.

<8>

The processing device according to any one of <4> to <7>, wherein the first temperature sensor is disposed in a hole provided in the first case.

<9>

The processing device according to any one of <4> to <8>, wherein the second temperature sensor is disposed in a hole provided in the second case.

<10>

The processing device according to any one of <1> to <9>, wherein the heater includes a cartridge heater.

<11>

The processing device according to any one of <1> to <10>, wherein the heating set temperature is higher than the highest reaching temperature of the bearing when the pattern roller and the anvil roller are operated without heating the heater. Of temperature.

<12>

The processing device according to <11>, wherein the heating set temperature is 1 ° C or more higher than the maximum temperature reached, preferably 5 ° C or higher, more preferably 10 ° C or higher, and higher than the maximum temperature reached. A range higher than 50 ° C, preferably a range higher than 40 ° C, more preferably a range higher than 30 ° C, and more specifically, a range higher than the maximum temperature reached by 1 ° C and lower than 50 ° C. It is preferably in a range of 5 ° C or higher and 40 ° C or lower, and more preferably in a range of 10 ° C or higher and 30 ° C or lower.

<13>

The processing device according to any one of <1> to <12>, wherein the heating set temperature of the first bearing and the heating set temperature of the second bearing are set to the same temperature.

<14>

The processing device according to any one of <1> to <13>, which includes an inter-roller adjusting block which is arranged between the first bearing and the second bearing, and adjusts the pattern roller and the anvil roller. Distance between axes.

<15>

The processing device according to <14>, comprising: a third temperature sensor that measures the temperature of the roller-to-roll adjustment block; and a third heater that is disposed on the roller-to-roll adjustment block; and the temperature controller. Maintaining the roller-to-roller adjustment block at the heating set temperature is based on instructing the third heater to heat the roller-to-roller adjustment block based on the temperature of the roller-to-roller adjustment block measured by the third temperature sensor.

<16>

The processing device according to <14> or <15>, wherein the roller-to-roller adjusting block has a hexahedral block shape, that is, has an upper surface as a surface of the first bearing side and a surface as a side of the second bearing Lower surface, and four sides.

<17>

The processing device according to <16>, wherein the upper surface and the lower surface of the inter-roller adjusting block are not parallel.

<18>

The processing device according to <16> or <17>, wherein the upper surface has a slope with respect to a horizontal plane.

<19>

The processing device according to <18>, wherein the inclination of the adjustment block between the rolls is 0.1 ° or more with respect to the horizontal plane, preferably 0.2 ° or more, more preferably 0.3 ° or more, and 10 ° or less with respect to the horizontal plane It is preferably 5 ° or less, more preferably 2 ° or less, and specifically, 0.1 ° or more and 10 ° or less, preferably 0.2 ° or more and 5 ° or less, and more preferably 0.3 ° or more and 2 ° or less.

<20>

The processing device according to any one of <14> to <19>, wherein the above-mentioned roller-to-roll adjustment block is movable in a horizontal direction.

<21>

The processing device according to any one of <1> to <20>, which has a pressurizing section that presses the first bearing in the direction of the second bearing.

<22>

A processing method comprising: using a pair of first bearings having a rotation shaft supporting a pattern roller to rotate freely; and supporting the rotation of the anvil roller freely arranged at a position opposite to the pair of first bearings. One of the moving shafts has a second bearing, and a processing device including a temperature sensor and a heater in at least one of the first bearing and the second bearing, and is processed between the pattern roller and the anvil roller. The object is processed by rotating the pattern roller and the anvil roller to maintain the temperature of each of the first bearing and the second bearing higher than that of the pattern roller without heating. The temperature of the first bearing and the second bearing at the time of the anvil roll is controlled by heating the set temperature.

<23>

The processing method according to <22>, wherein when the bearing measured by the temperature sensor is lower than the heating setting temperature, the heater is operated to heat the bearing, and the bearing is heated at the temperature When the bearing measured by the degree sensor is higher than the heating set temperature, the heating by the heater is stopped, and the temperature is controlled by maintaining the temperature of the bearing at the heating set temperature.

<24>

The processing method according to <23>, wherein the heating set temperature is higher than the maximum reaching temperature by 1 ° C or higher, preferably higher than 5 ° C, more preferably higher than 10 ° C, and higher than the maximum reaching temperature. The range is higher than 50 ° C, preferably the range higher than 40 ° C, and more preferably the range higher than 30 ° C. Specifically, it is a range of 1 ° C to 50 ° C higher than the maximum temperature reached, preferably a range of 5 ° C to 40 ° C, and more preferably a range of 10 ° C to 30 ° C. .

<25>

The processing method according to any one of <22> to <24>, wherein the heating set temperature of the first bearing and the heating set temperature of the second bearing are set to the same temperature.

<26>

The processing method according to any one of <22> to <25>, wherein the object to be processed includes two sheets, and a plurality of the two sheets are arranged in an elongated state between the two sheets and extend unidirectionally. Composite sheet of elastic member.

<27>

The processing method according to <26>, wherein the processing is a joining of the two sheets.

<28>

The processing method according to <26>, wherein the processing is a cutting of the elastic member.

<29>

The processing method according to any one of <26> to <28>, wherein the two sheets are non-woven fabrics.

Although the present invention has been described together with its embodiments and examples, it should be recognized that as long as no specific designation is made, the details of the description do not limit the present invention and should not violate the spirit of the invention shown in the scope of the attached patent application. And broadly understood.

This case is based on Japanese Patent Application No. 2016-155751 filed in Japan on August 8, 2016 and Japanese Patent Application No. 2017-142546 filed in Japan on July 24, 2017. And other applications, and the contents thereof are incorporated as part of this specification.

Claims (29)

A processing device includes: a pair of first bearings that support a rotation shaft of a pattern roller in a freely rotatable manner; and a pair of second bearings that are arranged at positions opposite to the pair of first bearings and The rotation shaft of the anvil roller is rotatably supported; and at least one of the first bearing and the second bearing is provided with a temperature sensor and a heater, and the processing device is provided with a temperature controller, which is provided with the temperature sensor. If the sensor and the bearing of the heater are maintained at the heating set temperature, the heater is instructed to heat the bearing based on the temperature of the bearing measured by the temperature sensor. For example, the processing device of claim 1, wherein the temperature controller operates the heater to heat the bearing when the bearing measured by the temperature sensor is lower than the heating set temperature, and the temperature measured by the temperature sensor When the bearing is higher than the heating set temperature, the operation of the heater is stopped to maintain the temperature of the bearing at the heating set temperature. The processing device of claim 1, wherein the temperature sensor includes: a first temperature sensor that measures the temperature of the first bearing; and a second temperature sensor that measures the temperature of the second bearing; and The heater includes a first heater that heats the first bearing, and a second heater that heats the second bearing. For example, the processing device of claim 3 sets the heating set temperature of the first bearing and the heating set temperature of the second bearing to the same temperature. The processing device as claimed in claim 3, wherein the first bearing has a first bearing body and a first housing arranged around the first bearing body, and the second bearing has a second bearing body and is arranged in the second In the second casing around the bearing body, the first heater is disposed on the first casing, and the second heater is disposed on the second casing. The processing device according to claim 5, wherein the first housing has a hole parallel to the axis of the rotation axis of the pattern roller and arranged around the axis, and the first heater is provided in the hole. The processing device according to claim 5, wherein the second housing has a hole parallel to the axis of the rotation axis of the anvil roll and arranged around the axis, and the second heater is provided in the hole. The processing device according to claim 5, wherein the second housing is fixed to the base, and the first housing is freely arranged along a guide rail fixed to the base. The processing device according to claim 5, wherein the first temperature sensor is disposed in a hole provided in the first casing. The processing device according to claim 5, wherein the second temperature sensor is disposed in a hole provided in the second casing. The processing device according to claim 1, wherein the heater includes a cartridge heater. The processing device according to claim 1, wherein the heating set temperature is a temperature higher than the highest reaching temperature of the bearing when the pattern roller and the anvil roller are operated without heating the heater. For example, the processing device according to claim 11, wherein the heating set temperature is higher than the maximum reaching temperature by a range of 1 ° C to 50 ° C. For example, the processing device of claim 1 includes an inter-roller adjusting block arranged between the first bearing and the second bearing, and adjusting the distance between the axis of the pattern roller and the anvil roller. If the processing device of claim 14 includes: a third temperature sensor that measures the temperature of the above-mentioned roll-to-roll adjustment block; and a third heater that is arranged on the above-mentioned roll-to-roll adjustment block; and the temperature controller is to If the roller-to-roller adjustment block is maintained at the heating set temperature, the third heater is instructed to heat the roller-to-roller adjustment block based on the temperature of the roller-to-roller adjustment block measured by the third temperature sensor. The processing device according to claim 14, wherein the inter-roller adjusting block has a hexahedral block shape, that is, the upper surface as the surface of the first bearing side, the lower surface as the surface of the second bearing side, and Sides. The processing device according to claim 16, wherein the upper surface and the lower surface of the inter-roller adjusting block are not parallel. The processing device according to claim 16, wherein the upper surface has a slope with respect to a horizontal plane. For example, the processing device of claim 18, wherein the inclination of the above-mentioned roll-to-roll adjusting block is 0.1 ° or more and 10 ° or less with respect to the horizontal plane. The processing device according to claim 14, wherein the above-mentioned roller-to-roller adjusting block can be moved in the horizontal direction. The processing device according to any one of claims 1 to 20, further comprising a pressurizing section that presses the first bearing in the direction of the second bearing. A processing method that uses a pair of first bearings having a rotation shaft supporting a pattern roller to rotate freely, and is arranged at a position opposite to the pair of first bearings and supports the rotation of the anvil roller freely. One of the moving shafts has a second bearing, and a processing device including a temperature sensor and a heater in at least one of the first bearing and the second bearing, and is processed between the pattern roller and the anvil roller. The object is processed by rotating the pattern roller and the anvil roller to maintain the temperature of each of the first bearing and the second bearing higher than that of the pattern roller without heating. The temperature of the first bearing and the second bearing at the time of the anvil roll is controlled by heating the set temperature. The processing method of claim 22, wherein when the bearing measured by the temperature sensor is lower than the heating set temperature, the heater is operated to heat the bearing, and the bearing measured by the temperature sensor is higher than the above In the case of heating the set temperature, the heating by the heater is stopped, and the temperature is controlled so that the temperature of the bearing is maintained at the heating set temperature. The processing method according to claim 23, wherein the heating set temperature is higher than the maximum reaching temperature by a range of 1 ° C to 50 ° C. If the processing method of item 22 is requested, it sets the heating setting temperature of the said 1st bearing and the heating setting temperature of the said 2nd bearing to the same temperature. The processing method according to claim 22, wherein the object to be processed includes two sheets and a composite sheet of a plurality of elastic members arranged in an extended state between the two sheets and extending unidirectionally. The processing method according to claim 26, wherein the above-mentioned processing is the joining of the above-mentioned two sheets. The processing method according to claim 26, wherein the processing is a cutting of the elastic member. The processing method according to any one of claims 26 to 28, wherein the two sheets are non-woven fabrics.