JP5399315B2 - Horizontal sealing device for bag making and filling machine - Google Patents

Description

  The present invention relates to a horizontal sealing device for performing horizontal sealing on a film formed into a cylindrical shape in a bag making and filling machine.

  A horizontal sealing device in a horizontal bag making and filling machine or other bag making and filling machine applies a horizontal seal at a predetermined interval with a heating seal bar in a direction crossing the conveying direction of the tubular film and cuts to obtain a bag-packed packaged product. I am doing so. The horizontal seal device is configured to heat the seal bar with a cartridge heater inserted into the heat seal bar. In such a heating system, temperature variation occurs in the longitudinal direction of the heat seal bar. As described in 1 and 2, etc., a heat pipe is embedded along the longitudinal direction of the heat seal bar to eliminate temperature variation in the longitudinal direction of the heat seal bar.

  Moreover, in order to make uniform the temperature distribution in the longitudinal direction of the seal surface in the heat seal bar, the lateral seal device in Patent Document 3 replaces the use of a heat pipe with a heater and a seal attached to the heat seal bar. A technique has been proposed in which a heat transfer member having a heat transfer characteristic superior to that of the metal material forming the heat seal bar is interposed between the heat seal bar and the surface.

Japanese Utility Model Publication No. 61-175431 Japanese Patent Laid-Open No. 10-316114 Japanese Patent No. 4021551

  The cartridge heater is formed in a rod shape in which a nichrome wire wound around a rod-shaped ceramic is inserted into a heat-resistant stainless steel pipe, and the gap between the nichrome wire and the pipe is sealed with magnesia, which has excellent thermal conductivity and high insulation properties. The cartridge heater is used by being inserted into a through hole provided in the longitudinal direction of the heat seal bar.

  When the cartridge heater is at a high temperature, the insulation is lowered, the insulation is deteriorated due to moisture absorption in a high humidity atmosphere, or the nichrome wire is disconnected due to deterioration due to oxidation or energization. The problem is inherent. That is, although the cartridge heater has a difference depending on the use environment or the like, the lifetime is as short as 1 to several years, and the cartridge heater needs to be periodically replaced as a consumable. Moreover, in order to eliminate the dispersion | variation in the temperature of the longitudinal direction in a sealing body, the problem that it is necessary to employ | adopt soaking | uniform-heating means, such as the heat pipe mentioned above and a heat-transfer member, is inherent.

  The present invention has been made in view of the above-described problems of the related art, and an object of the present invention is to provide a lateral seal device for a bag making and filling machine that can uniformly and efficiently heat a sealing body and improve maintainability.

In order to overcome the above-mentioned problems and achieve the intended object, a lateral sealing device for a bag making and filling machine according to the invention of claim 1 is provided:
A horizontal sealing device of a bag making and filling machine that performs horizontal sealing on a cylindrically formed film in a direction crossing the film conveyance direction,
Mutually the rotatable around the rotation axis of the respective supporting the pair of rotary shafts in opposite directions, are disposed at predetermined angles extend in a direction intersecting the film transport direction, said film at each predetermined timing together with a plurality of seal bar having a seal surface which may be clamped, are arranged in the extending direction both ends of the seal bar, by the seal bar is circumferentially disposed at predetermined angles were Menban portion and the magnetic body A molded seal body,
Wherein the rotation shaft so as to allow rotation of the rotary shaft is inserted, the disposed proximate to the outer surface of the flat surface of each Menban portion, said face panel portion and said by the IH coil sealed in the heat-resistant material It is characterized by comprising a heating body for induction heating each seal bar that intersects the inner side surface of the face plate portion .

The gist of the invention according to claim 2 is that the heating body is disposed so as to be movable along the axis of the rotating shaft.

In the invention according to claim 3, the thermocouple is inserted in an inclined shape so that the tip portion is close to the seal surface of the seal bar from one face plate portion of the seal body, and electrically connected to the thermocouple A non-contact connector comprising a rotation-side connector disposed so as to be integrally rotatable with the rotation shaft, and a fixed-side connector fixedly disposed adjacent to the rotation-side connector,
The rotation-side connector in the non-contact connector includes an electronic circuit that transmits the voltage output from the thermocouple as a data value corresponding to a temperature value to the fixed-side connector by radio waves, and from the fixed-side connector to the rotation-side connector. The gist is that power is supplied to the electronic circuit by radio waves.

According to a fourth aspect of the present invention, the face plate portion is formed in a disc shape, and the seal surface of the seal bar is continuous with the peripheral surface of the double-sided plate portion and is provided on the seal surface so as to surround the concave portion and the convex portion. the transverse seal eyes formed alternately in the direction, thereby forming extends to the circumferential surface of the double-sided board part, it forms the same uneven portion and its transverse seals th the entire circumference of said surface plate portion, each Menban portion The gist of the present invention is that it is configured to mesh and rotate at the concavo-convex portion and to have a pair of seal bars sandwich the film between the concavo- convex portions of the sealing surface to form a seal in the width direction on the film .

In the invention of claim 5 , the first rotation shaft that is one of the pair of rotation shafts is supported between a pair of side walls disposed on the left and right sides of the film conveyance path ,
Said film by the sealing faces of the seal bar so as to nip at a predetermined pressure, the second rotating shaft serving as the other of the rotational axis relative to said first axis of rotation, each of the side walls and biased by a spring member a support means for rotatably supported with respect to,
A mounting member for both heating body disposed close to the outer surface of the face panel portion of the first rotating shaft, supporting said each side wall,
Both heating body disposed close to the outer surface of the face plate portion in the second axis of rotation, as well as disposed on the respective supporting means, a mounting member which is disposed integrally rotatably with the support means to the side walls The summary is provided.

According to the first aspect of the present invention , the IH coil is disposed close to the outer side surface of the double-sided disk portion of the sealing body in which a plurality of seal bars are integrally formed intersecting the inner surface of the faceboard portion. By inductively heating the face plate portion and the seal bar, the entire longitudinal direction of the seal surface in the plurality of seal bars arranged between the face plate portions is made uniform without using a heat pipe or other heat transfer means. Compared with the heating method using a cartridge heater, the heating time required to reach the proper seal temperature can be remarkably shortened. Further, by adopting an IH coil encapsulated in a heat-resistant material, a semi-permanent life can be obtained without being affected by moisture, moisture, and other working environments at the packaging site, and maintenance is improved. Furthermore, the sealing body can be downsized, and the heating volume of the sealing body is thereby reduced, so that power consumption can be further reduced. Furthermore, the processing capability can be increased by providing a plurality of seal bars.
According to the second aspect of the present invention, it is possible to easily perform a cleaning operation such as removing film debris or article debris that has fallen to the side of the sealing body during packaging operation.
According to the invention which concerns on Claim 3, it can be made maintenance-free compared with the conventional brush ring system. In addition, a control circuit that is resistant to noise from the heater power source or the like in the signal transmission system can be provided, and highly accurate heater temperature control can be performed.
According to the invention of 請 Motomeko 4, a plurality of seal bars by rotating supports a seal member so as to mesh the uneven portion of the surface plate portion which is integrally molded, sealing each each combination of a plurality of seal bars There is no need for alignment, and it is possible to prevent a sealing failure due to clogging or a meshing failure due to the contact of the uneven portions formed on the sealing surface of each seal bar.
According to the invention which concerns on Claim 5 , a heating body can be reliably supported by the fixed space | interval from the side surface of a pair of sealing body.

It is a schematic front view which shows the whole structure of the horizontal bag-making filling machine which concerns on an Example. It is a principal part side view of the horizontal sealing apparatus which concerns on an Example. It is a principal part longitudinal cross-sectional view of the horizontal sealing apparatus which concerns on an Example. It is an expansion explanatory view showing a meshing part of a seal body concerning an example. It is a principal part longitudinal cross-sectional view of the horizontal sealing apparatus which concerns on an Example. It is a longitudinal cross-sectional view of the heating body which concerns on an Example. It is a principal part top view of the horizontal seal | sticker apparatus which concerns on another Example, Comprising: The state which made the heating body adjoin with respect to a seal body, and the state spaced apart are shown.

  Next, a preferred embodiment of the lateral seal device of the bag making and filling machine according to the present invention will be described below with reference to the accompanying drawings.

  The embodiment exemplifies the case where the horizontal sealing device according to the present invention is applied to a horizontal bag making and filling machine. The horizontal bag making and filling machine (hereinafter referred to as a packaging machine) is schematically shown in FIG. As shown, a bag making means 10 for forming a strip-like film drawn from a film supply source into a cylindrical shape is disposed, and the longitudinal polymerization of the cylindrically formed film F is provided downstream of the bag making means 10. Longitudinal sealing means 12 for sealing the edge is provided. The pair of heating rollers 14, 14 and the pair of feed rollers 16, 16 in the vertical sealing means 12 sandwich the overlapping edge portion of the film F to continuously perform vertical sealing, and the film F to the horizontal sealing means 18. Configured to be transported towards. The articles W are supplied into the film F formed into a cylindrical shape by the bag making means 10 at a predetermined interval by a feeding member 22 provided on the supply conveyor 20 and conveyed toward the lateral sealing means 18.

  As shown in FIG. 2, the horizontal sealing means 18 disposed on the downstream side of the vertical sealing means 12 includes a first rotary shaft 26 between a pair of left and right side walls 24a, 24a sandwiching the film conveyance path. Is pivotally supported. Inside each side wall 24a, one end portion is pivotally supported by a support shaft 30 disposed on the side wall 24a, and a support member 32 whose free end side is rotatable up and down with the support shaft 30 as a fulcrum is provided. I'm here. On both support members 32, 32, a second rotary shaft 28 is rotatably supported in parallel above the first rotary shaft 26. A seal body 34 for laterally sealing the cylindrical film F is disposed on each of the rotary shafts 26 and 28 so as to be integrally rotatable.

Each sealing body 34 is formed of, for example, a material made of carbon steel, carbon tool steel, or other magnetic body, and has a sealing surface whose length extends in the rotation axis direction (direction intersecting the film conveyance direction). The seal bar 36 is provided at a predetermined angle in the circumferential direction, and the seal surfaces of the pair of seal bars 36, 36 facing each other in the vertical direction are engaged with each other, so that the cylindrical film F is laterally sealed (see FIG. 3). . In the embodiment, six seal bars 36 are provided around the rotary shafts 26 and 28. Further, on both sides in the longitudinal direction of the seal bar 36, a disk-shaped face plate portion 38 having a predetermined thickness continuous with the seal bar 36 is integrally formed with the seal bar 36. The support member 32 is supported on the free end portion of each support member 32 so that the upper seal body 34 is pressed against the lower seal body 34 when the seal bodies 34 are engaged with each other. A spring member 40 such as a compression spring that is pivotally biased about 30 as a fulcrum is provided, and the cylindrical film F can be sandwiched and sealed with seal bars 36, 36 of both seal bodies 34, 34 at a predetermined pressure. The

  As shown in FIG. 2, gears 42 and 42 are disposed so as to rotate integrally with the ends of the rotary shafts 26 and 28 that extend laterally from the one side wall 24a. Meshed. In response to the rotational driving force of a servo motor linked to the first rotary shaft 26 via belt pulley transmission means, the pair of rotary shafts 26, 28 provided with the seal bodies 34, 34 are opposite to each other. Configured to rotate. And the seal bars 36 and 36 of the seal bodies 34 and 34 which oppose vertically are meshed | engaged for every predetermined angle, and a horizontal seal is given between the supplied articles | goods to the cylindrical film F. As shown in FIG. As shown in FIG. 3, one seal body 34 is provided with a knife 44 for cutting the tubular film F in the width direction corresponding to each seal bar 36, and the other seal body 34 has the above-mentioned A receiving member 46 for receiving the knife 44 is disposed corresponding to each seal bar 36, and the tubular film F is laterally sealed, and at the same time, the film F is cut.

  As shown in FIG. 4, the seal surface of each seal bar 36 is formed with uneven horizontal seals in which concave portions and convex portions extending in the longitudinal direction are alternately formed in the circumferential direction. The concave and convex portions of the bars 36 are engaged with each other so as to form a seal in the width direction on the film F. Further, concave and convex portions are formed on the outer peripheral surfaces of the double-sided board portions 38 and 38 at the same positions and in the same shape as the concave and convex portions formed on the seal bar 36. , 38a are engaged so that the seal bodies 34, 34 rotate. That is, since the upper and lower seal bodies 34, 34 always rotate with the concave and convex portions 38a, 38a of the face plate portions 38, 38 meshing with each other, it is necessary to perform seal alignment for each combination of the plurality of seal bars 36, 36. Therefore, it is possible to prevent a sealing failure due to a clogging or a meshing failure caused by a single contact of the uneven portions 38a, 38a formed on the sealing surfaces of the seal bars 36, 36. The outer surface of the face plate portion 38 is exposed to form a recessed groove for attaching the knife 44 and the receiving member 46 provided corresponding to each seal bar 36, but the remaining portion is a hole or other uneven portion. Is formed on a flat surface without being provided.

  As shown in FIG. 3, the seal members 34 are separated in the axial direction in a state where a pair of halves formed in a block shape divided into three seal bar units are opposed to each other with the rotation shafts 26 and 28 therebetween. Are fixed by bolts 47 at a plurality of locations, and are fixed so as to be integrally rotatable by bolts 49 at a plurality of locations spaced apart in the axial direction with respect to the corresponding rotating shafts 26 and 28. The body can be divided and removed from the rotary shafts 26 and 28.

  As shown in FIG. 2, heating bodies 48 for inductively heating the seal body 34 are disposed in proximity to the corresponding face plate portions 38, 38 on both sides in the axial direction of the seal bodies 34. Heating bodies 48, 48 located on both sides of the upper seal body 34 are disposed on the support members 32, 32, and heating bodies 48, 48 located on both sides of the lower seal body 34 are arranged on the side wall 24a. 24a. In the embodiment, the support means is composed of the pair of support members 32, 32, but the support means may be a combination of the pair of support members 32, 32.

  As shown in FIG. 6, each heating body 48 is formed in a cylindrical shape in which an IH coil 51 wound in an annular shape with a required diameter is molded with a heat-resistant material such as an epoxy-based heat-resistant resin to form a waterproof structure. In a state where the rotary shafts 26 and 28 are inserted in the through-holes 48a formed in the non-contact manner, the corresponding support members 32 or the side walls 24a are detachably disposed via the mounting base 50 (FIG. 5). reference). The mounting base 50 is screwed and fixed to a boss projecting from the support member 32 or the side wall 24a, and the mounting base 50 is formed with a notch 50a that allows the rotation shafts 26 and 28 to be inserted. Further, as shown in FIG. 5, the heating body 48 is provided with flanges 48b at a plurality of positions spaced apart in the circumferential direction, and the flanges 48b and the mounting base 50 are fixed with screws in a state of being spaced apart via a spacer. The heating body 48 faces the face plate 38 in a state where magnetic lines of force are generated from the encapsulated IH coil 51 to the corresponding face plate, and only the seal members 34 and 34 generate heat by induction heating. It is positioned and supported at a position at a predetermined gap that can be heated. As the heat-resistant material for covering the IH coil 51, a silicone material or other heat-resistant coating material can be adopted. In the embodiment, an attachment member for attaching the heating body 48 to the support member 32 or the side wall 24a is constituted by the mounting base 50, the boss, and the spacer, but various types of attachment members such as attaching the heating body 48 directly to the boss are adopted. Can do.

A high frequency current of 9.9 kHz is supplied to the IH coil 51 of the heating body 48 from the inverter, and each IH coil 51 is set to obtain a power of 330 W. The face plate portion 38 in each seal body 34 from the IH coil 51. , 38 generates heat by the eddy current generated in the sealing body 34 due to the magnetic lines of force generated on the board surface. As a result, the seal bar 36 formed integrally with the face plate portions 38 of the seal body 34 is heated in a short time, and the entire area of the seal surface formed in the longitudinal direction is heated substantially uniformly. In addition, in the heating body 48 of the specification set so that the electric power of 330W may be obtained with the IH coil 51, it arrange | positions so that it may face about 5 millimeters apart with respect to the faceplate part 38, and the sealing body 34 is efficiently used. Although it is configured to be able to heat, the distance between the face plate portion 38 and the heating body 48 is set according to the specifications of the IH coil. In addition, since the heating body 48 is fixedly disposed separately from the rotary shafts 26 and 28, power can be supplied without using a brush ring or the like, compared to the conventional heating method using a cartridge heater. It can be simplified and maintainability is also improved.

  By using an induction heating type heating body 48 as a heating source, the heating efficiency can be greatly improved in comparison with a sealing body using a conventional cartridge heater, and a heat pipe or other heat transfer means can be used. The sealing body 34 can be heated uniformly in the longitudinal direction without adopting it. In the case where the cartridge heater is used, the length of the seal body whose length is set on the basis of the heater length necessary for heating the seal body becomes longer, whereas the heating body 48 of the induction heating method is used as the seal body 34. By adopting a configuration in which the seal body 34 is disposed on both sides, the length of the seal body 34 in the longitudinal direction can be shortened by about 40 percent as compared with a heating method using a conventional cartridge heater.

  Further, the length of the seal surface of the seal bar 36 can be set to the minimum necessary size based on the bag size required for the original packaged product, and can be reduced by about 15% compared to the conventional case. . Thereby, the volume of the sealing body 34 can be reduced and heating efficiency can be improved further. By reducing the size of the seal body 34, it is possible to reduce the size of the device and reduce the capacity of the drive motor.

Here, in the verification results up to the adoption of the induction heating method in the present embodiment, even if the seal bar and the face plate portion in the seal body are made of the same material, the separate face plate portion is sealed. In the case where the side surface of the bar was screwed and integrated to form a seal body similar to that of the example, only the face plate portion was heated and saturated, and the seal bar was not heated sufficiently. That is, it was confirmed that the sealing body 34 can heat the sealing surface of the sealing bar 36 satisfactorily only when the sealing bar 36 and the face plate portion 38 are integrally formed of a magnetic material as in the configuration of the present embodiment.

  As shown in FIG. 2, a thermocouple 52 is inserted into each seal member 34 from the inner side which is the mounting surface for the rotary shafts 26 and 28 in an inclined manner toward the center in the axial direction. Located close to the sealing surface. The lead wire 54 of the thermocouple 52 is inserted into the groove portions 26b, 28b formed on the outer circumferences of the rotary shafts 26, 28 and extending in the axial direction on the seal bar side from the one face plate portion 38 of the seal body 34 and rotated. The inside of the through hole 48a of one heating body 48 is drawn without protruding in the radial direction of the shafts 26 and 28. Then, the lead wire 54 is introduced into the hollow portions 26a and 28a (see FIG. 5) formed inside the rotary shafts 26 and 28 on the support member side or side wall side from the heating body 48, and the lead wire 54 is not connected. The contact connector 56 is connected to the rotation side connector 58.

  The non-contact connector 56 is disposed at one end of the rotary shafts 26 and 28 and is rotated in a position fixed state with respect to a rotation-side connector 58 that rotates integrally with the fixing machine frame such as the side wall 24a. The fixed connector 60 is provided near the side connector 58, and the fixed connector 60 is connected to the control unit of the packaging machine. The rotation-side connector 58 includes an electronic circuit including an amplifier that converts the voltage output from the thermocouple 52 into a predetermined data value corresponding to the temperature value and outputs the data value to the fixed-side connector 60 by radio waves. The temperature of the seal body 34 can be monitored by the control unit of the packaging machine based on the data signal relating to the temperature value received by the fixed connector 60. The fixed connector 60 is configured to supply the electric power required for the electronic device of the electronic circuit in the rotary connector 58 to the rotary connector 58 by radio waves. Thus, the detection result of the thermocouple 52 can be directly output as a digital data value related to the temperature value to the control unit of the packaging machine via the non-contact connector 56. This eliminates the need for replacement due to wear of the brush and cleaning of the carbon at the contact portion between the brush and the ring as in the conventional brush ring system, and makes it maintenance-free. Furthermore, since the detected value of the thermocouple 52 is converted to a data value related to analog or digital temperature data via the non-contact connector 56 and is transmitted to the control unit of the packaging machine, the temperature adjustment is performed as in the past. Compared to the one that converts the thermocouple's weak voltage into temperature data on the heater side, the signal transmission system can be a control circuit that is more resistant to noise from the heater power supply, etc., and can perform highly accurate heater temperature control. There are advantages such as being able to.

  As in another embodiment shown in FIG. 7, the heating body 48 is disposed so as to be movable toward and away from the mounting base 50 disposed on the support member 32 (or side wall 24a) along the axis of the rotary shafts 26 and 28. The heating body 48 is always configured to be held at an appropriate position with respect to the face plate portion 38 of the sealing body 34 by a spring member 62 such as a compression spring. According to this configuration, the heating body 48 is moved away from the sealing body 34 against the urging force of the spring member 62, thereby melting the film that has entered the gap between the heating body 48 and the sealing body 34. It is possible to easily remove scum, scum of articles, and other foreign matters.

[About the test]
Tests A and B in which the heating set temperature of the sealing body is set to 250 ° C. while the rotation of the sealing body is stopped in both the example using the heating body of the embodiment as a heating source and the comparative example using the conventional cartridge heater. The test A was conducted in a state where the upper and lower seal bars were engaged, and the time from the start of energization to the heating source until the seal surface temperature of the upper and lower seal bodies was saturated as a set temperature (substantially uniformly heated), Test B: The measurement results of the temperature variation in the longitudinal direction of the seal surface of the seal bar when the temperature of the upper and lower seal bodies reaches the set temperature and the test C: power consumption when stopped are shown below. In tests A and B, the temperature of the side surface of the seal bar was measured by thermography at intervals of 10 seconds.
Test A
Example: 14 minutes 40 seconds Comparative example: 53 minutes 10 seconds As a result, it was confirmed that the example was heated about four times faster than the comparative example.
Test B
Example: 1.3 ° C
Comparative example: 5.7 ° C
As a result, it was confirmed that the example was suppressed to a variation in temperature difference of about ¼ compared to the comparative example.
Test C
Example: 327 Wh
Comparative example: 439 Wh
As a result, the Example has confirmed the energy-saving effect of about 100 Wh of power consumption compared with a comparative example.

(Example of change)
The present invention is not limited to the configuration of the examples, and various embodiments can be adopted within the scope of the gist of the present invention. For example, the following modifications can be made.
(1) As shown in the embodiment, it is preferable to provide a plurality of seal bars 36 (six in the embodiment) at a predetermined angle with respect to the face plate portion 38 because of high heating efficiency and energy saving effect. The number of seal bars 36 may be one or any number other than six.
(2) In another embodiment, the heating body 48 is configured to be movable in the axial direction along the rotation shafts 26 and 28. However, the heating body 48 can be moved in the radial direction, or each position before and after the movement, or any of them. Various other configurations can be adopted that can be locked so as not to move at the position. In addition, the heating body 48 can be moved in the radial direction with respect to the rotary shafts 26 and 28 by making the heating body 48 substantially U-shaped. In this case, the IH coil 51 is also substantially U-shaped. Sealed.
(3) In the embodiment, the sealing body 34 has the half face structure of the face plate portion 38 for each of the plurality of seal bars 36, but the face plate portion 38 is not divided, or from the center of the face plate portion 38. 38 may be divided into a plurality of angles.
(4) In the embodiment, a horizontal bag making and filling machine has been described as an example of a packaging machine in which a horizontal sealing device is adopted, but it can also be applied to a vertical bag making and filling machine and other various bag making and filling machines. .
(5) In the embodiment, the rotary shafts 26 and 28 of the seal body 34 are supported so as to extend in the lateral direction. However, the rotary shafts 26 and 28 are supported so as to extend in the vertical direction. Can be adopted.

24a Side wall, 26 1st rotating shaft, 28 2nd rotating shaft, 32 Support member (support means)
34 Seal body, 36 Seal bar, 38 Face plate, 38a Concavity and convexity, 40 Spring member 48 Heating body, 50 Mounting base (mounting member), 51 IH coil, 52 Thermocouple 56 Non-contact connector, 58 Rotation side connector, 60 Fixed connector F Tubular film (film)

Claims (5)

A laterally sealing device of a bag making and filling machine that performs lateral sealing in a direction intersecting the film conveyance direction on the tubularly formed film (F),
The rotational axis of the respective cross pair of rotating shaft rotatably supported in opposite directions (26, 28) extending in a direction intersecting the film transport direction is disposed at every predetermined angle, the predetermined timing It said film a plurality of seal bars (36) having a sealing surface which can sandwich the (F), is disposed extending direction both ends of the seal bars (36), each seal bar (36) is circumferential direction for each And a sealing body (34, 34) integrally formed of a magnetic body with a face plate portion (38) arranged at a predetermined angle to each other ,
Wherein the rotation shaft (26, 28) rotation axis so as to allow rotation of the (26, 28) is inserted, it is arranged close to the outer surface of the flat surface in the respective Menban portions (38, 38) Then, the IH coil (51) encapsulated in a heat-resistant material induction heats the face plate portion (38, 38) and each seal bar (36) connected to the inner side surface of the face plate portion (38, 38). A transverse sealing device for a bag making and filling machine, comprising a heating body (48, 48). The transverse sealing device for a bag making and filling machine according to claim 1, wherein the heating body (48) is movably disposed along an axis of the rotating shaft (26, 28). A thermocouple (52) inserted in an inclined shape so that the tip portion is close to the seal surface of the seal bar (36) from one face plate portion (38 ) in the seal body (34), and the thermocouple ( 52) a rotating side connector (58) electrically connected to the rotating shaft (26, 28) and connected to the rotating shaft (26, 28), and a fixedly arranged in the vicinity of the rotating side connector (58). Non-contact connector (56) consisting of side connector (60)
The rotating side connector (58) in the non-contact connector (56) is an electronic circuit that transmits the voltage output from the thermocouple (52) to the fixed side connector (60) by radio waves as a data value corresponding to the temperature value. The lateral seal device for a bag making and filling machine according to claim 1 or 2, wherein power is supplied from the stationary connector (60) to the electronic circuit of the rotating connector (58) by radio waves. The face plate portion (38) is formed in a disc shape, and the seal surface of the seal bar (36) is continuous with the peripheral surface of the double-sided plate portion (38, 38), and is provided on the seal surface so as to be recessed and convex. And a transverse seal formed alternately in the circumferential direction over the circumferential surface of the double-sided board part (38, 38), and the transverse seal eyes on the entire circumference of the faced board part (38) forms the same uneven portion (38a), each Menban portion (38), uneven portions film pair of sealing bars (36, 36) is in the unevenness of the sealing surfaces while rotating in mesh with (38a) (F) The transverse sealing device for a bag making and filling machine according to any one of claims 1 to 3, wherein a sealing line in the width direction is formed on the film (F) by sandwiching the film . A first rotating shaft (26), which is one of the pair of rotating shafts, is supported between a pair of side walls (24a, 24a) disposed on the left and right sides of the film (F) conveying path ;
A second rotating shaft that is the other rotating shaft with respect to the first rotating shaft (26) so that the film (F) can be held between the sealing surfaces of the seal bars (36, 36) with a predetermined pressure. (28) is provided with support means (32, 32 ) for supporting the respective side walls (24a, 24a) so as to be urged by a spring member (40),
Mounting member (50 supporting both heating body disposed close to the outer surface of the face panel portion (38, 38) in said first rotation axis (26) and (48, 48), wherein each side wall (24a, 24a) ) And
Both heating body disposed close to the outer surface (48, 48) of the face panel portion (38, 38) in said second rotary shaft (28), while arranged above the respective supporting means (32, 32), side walls (24a, 24a) relative to the support means (32, 32) integrally rotatably disposed the mounting member (50) and bag-making filling machine according to any one of claims 1-4 having a Horizontal sealing device.

Images