JPH0523452Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is a sealing device that welds a sealing film to the mouth of a container using a plurality of sealing head devices arranged around the outer periphery of a rotating rotor. This relates to a transfer table that is delivered to a seal head device.

BACKGROUND ART Conventionally, when a lightweight conveyance object such as a sealing film on a rotatably moving table is transferred to a rotatably moving holding device, as shown in FIG. The contact point 303 is arranged so as to touch the rotating path 302 of the conveyor at one point, and the conveyed object is transferred.

Problems to be Solved by the Invention However, the transfer of conveyed objects at the conventional contact point 303 is unstable, and requires accurate synchronization and speed of transfer, making it impossible to respond to higher speeds.

SUMMARY OF THE INVENTION An object of the present invention is to provide a transfer table for a sealing film in a sealing device that solves the above-mentioned problems and allows stable and high-speed transfer of the sealing film.

Means for Solving the Problems In order to solve the above problems, the present invention provides a sealing device in which a sealing film is welded to the mouth of a container using a plurality of sealing head devices arranged around the outer periphery of a rotating rotor. The sealing film transfer table includes a plurality of film holders that are movable in the radial direction of the rotary table at predetermined intervals in the circumferential direction of the rotary table and that are capable of holding the sealing film. A track cam follower is provided on a support shaft suspended from the film holding base, and the track cam follower is engaged to move the film holding base in the radial direction of the rotary table as the rotary table rotates. A cam groove is provided around the rotary table, and the track cam groove corresponding to the film transfer section of the rotation path of the film holder that overlaps a part of the rotation path of the seal head device is connected to the rotation path of the seal head device. The sealing film on the film holding table is delivered to the sealing head device by synchronizing the moving speed of the film holding table in the film transfer section with the moving speed of the sealing head device. .

Operation With the above configuration, the film holding table moves synchronously at the same speed as the seal head device, with the track cam follower being guided by the track cam groove along the rotation path of the seal head device in the film transfer section.
In the film transfer section, the sealing film on the film holding stand can be stably transferred to the sealing head device, and speeding up is also possible.

Embodiment The following describes a sealing device which is an embodiment of the present invention.
This will be explained based on FIGS.

As shown in FIGS. 7a, b, and c, this sealing device includes, for example, a resin drip bottle (hereinafter referred to as a container) 1 having an oval shape in plan view, into which a resin liquid stopper 2 is fitted. A substantially elliptical sealing film 4 made of resin and having a handle 4a formed thereon is welded to the upper surface of the opening 3 by pressure welding. This container 1 has a liquid stopper member 2 formed in a cylindrical shape and is closed by a rubber material 2a inside the liquid stopper member 2, and a seal welded to the upper opening 2b of the liquid stopper member 2. The sealing film 4 is used to prevent contamination of the surface of the rubber material 2a, and when used, after peeling off the sealing film 4, a syringe needle or the like is inserted into the rubber material 2a to pour out the drug solution in the container 1. . The sealing film 4 is welded to the periphery of the upper opening 2c of the cylindrical portion of the resin liquid stopper member 2 and its peripheral edge 2c,
The handle portion 4a of the sealing film 4 is always attached to the container 1 so as to face in a fixed direction, that is, in the longitudinal direction of the container 1 as shown in FIG. 7c. This is to prevent the handles 4a of adjacent sealing films 4 from coming into contact with each other and peeling off of the sealing films 4 when a plurality of containers 1 are lined up and boxed.

First, the outline of this sealing device will be explained with reference to FIGS. 4 to 6.

A film punching device 8 in which a film strip 5 wound into a roll is intermittently fed out by a film feeding device 6, and the fed out strip film 5 is punched into a sealing film 4 of a predetermined shape by a press shearing device 7. will be placed. The sealing film 4 punched by the film punching device 8 is
The film is transferred to a film welding device 10 by a transfer table 9 that rotates intermittently around a vertical axis.
As shown in FIG. 6, this film welding device 10 has film holding sections 13 of a seal head device 12 disposed at predetermined intervals around the outer periphery of a rotor 11 that continuously rotates around a vertical axis 122. The seal film 4 on the transfer table 9 is held, and the container holder 14 moves the seal film 4 from the inlet conveyor 15 to the inlet star wheel 16.
The sealing film 4 is continuously attached to the opening 3 of the container 1 by the film welding part 17 while the sealing head device 12 is rotating.
It is configured to be pressure welded to. The container 1 is then discharged onto an exit conveyor 19 by an exit starwheel 18. Reference numeral 20 denotes two redirect levers disposed near the exit star wheel, and a photoelectric detection device (not shown) confirms the presence or absence of the sealing film 4 on the sealed container 1 and the seal position, and detects a defective one. In this case, the reject lever 20 is rotated by a signal from the photoelectric detection device to transfer the defective container 1 to the reject table 21. Two sets of the film punching device 8 and transfer table 9 are provided for one film welding device 10 due to the speed and welding efficiency of the film welding device 10. The film welding apparatus 10 is also provided with an emergency welding stop device 221 that prevents excessive welding of the sealing film 4 during pressure welding during an emergency stop.

The details will be explained below.

The film feeding device 6 of the film punching device 8 has a feeding reel 31 as shown in FIG.
The strip-shaped film wound on the
2, the strip film 5 is introduced between the connected feed roll 33 and the presser roll 34 which are continuously rotated, and is fed out from the feed reel 31 at a constant speed. The film is introduced between a fixed pitch feed roll 38 and a presser roll 39 which are guided by a second guide roll 37 and rotated intermittently, and then wound onto a take-up reel 41 which is rotated by a wind-up motor 40. The step roll 35 is rotatably attached to the free end of an arm 44 that is supported to be swingable around a pin 42 and is biased to rotate in the direction of arrow A by a spring 43, and is fed at a constant pitch. The slack of the film strip 5 due to the difference between the amount of film drawn out intermittently by the roll 38 and the amount of film fed out continuously by the continuous feed roll 33 is absorbed, and the intermittent film feeding is made smooth. Moreover, the structure is such that the belt-like film 5 is not adversely affected by impact or the like due to the tensile force.

A press shearing device 7 is disposed between the first guide roll group 36 and the second guide roll 37. As shown in FIGS. 9 and 10, in this press shearing device 7, a punch holder 48 having a punch 47 is disposed on a pair of guide pins 46 erected on a base 45 so as to be movable up and down.
A die 49 corresponding to the punch 47 is arranged above. The strip-shaped film 5 is placed on the die 49 and introduced into a film introduction hole 50b of a film holder 50 having an insertion hole 50a for the punch 47. Further, an air hole 51 is formed in the center of the punch 47 and opens in the vertical direction to the lower surface, which is the film contact surface of the punch 47. 55. The switching valves 54 and 55 are operated via, for example, limit switches 56 and 57, which are interlocked as the punch 47 moves up and down, and as shown in the timing chart of FIG. During the descent from a slightly lowered position b to the bottom dead center c, the vacuum pipe 52 is connected to the belt-shaped film 5 and the sealing film 4 punched out of it.
is attracted to the lower surface of the punch 47, and in the rising section from the bottom dead center c to the slightly raised position d, the blow pipe 53
The sealing film 4 is separated from the lower surface of the punch 47 and delivered to the transfer table 9.

As shown in FIG. 8, the constant pitch feed roll 38 of the film feeding device 6 and the punch 47 of the press shearing device 7 are driven by a drive shaft 59 which is rotationally driven via a belt 58 by the drive source of the sealing device.
It will be more linked. That is, a belt pulley 61 around which a belt 58 is wound is attached to a drive shaft 59 rotatably supported by a bearing via a cam clutch 60, and a solenoid 62 operates a cam clutch 60 via a lever 63 to rotate the belt pulley. 61 and the drive shaft 59 can be connected and detached. A feed crank mechanism 66 consisting of a crank plate 64 and a connecting rod 65 is provided at one end of the drive shaft 59. It is rotatably connected to the free end of the movable lever 68 and converts the rotation of the drive shaft 59 into reciprocating rocking of the rocking lever 68 within a certain range.
A ratchet mechanism 69 consisting of a pawl and a ratchet wheel (not shown) is interposed between the rotating shaft 67 and the fixed pitch feed roll 38, and changes the swinging of the swing lever 68 to the intermittent rotation of the fixed pitch roll 38. Convert.

On the other hand, a punching crank mechanism 72 consisting of a crank plate 70 and a continuous rod 71 is interposed at the other end of the drive shaft 59, and the tip of the continuous rod 71 is rotated via a pin 73 to the punch holder 48 of the press shearing device 7. They are movably connected and convert rotation of the drive shaft 59 into reciprocating movement of the punch 47. Therefore, since the constant pitch feed roll 38 and the punch 47 are linked to the same drive shaft 59, the timing of each operation can be set reliably and accurately with an extremely simple structure. The above timing is as shown in Fig. 12a and b.
9 causes the swinging lever 68 to reciprocate, and during the swinging feed in the direction of arrow B from the upper limit position to the lower limit position, the swing shaft 67 and the constant pitch feed roll 38 are interlocked by the ratchet mechanism 69. Then, the fixed pitch feed roll 38 rotates by a predetermined angle α to feed the strip film 5 by a certain amount. Further, when returning to swing in the direction of arrow C from the lower limit position to the upper limit position, the rotation shaft 67 and the constant pitch feed roll 38 are separated by the ratchet mechanism 69, and the constant pitch feed roll 3
8 is stopped, and the feeding of the strip film 5 is stopped. This is illustrated by the timing behavior curve in Figure 12b. The punch 4 is designed so that punching is performed when the strip tape 5 is stopped during return as shown in this timing curve.
Drive 7. That is, the punch 47 is at the top dead center a
The punch 47 reciprocates from the shearing position for punching the strip film 5 on the die 49 to the bottom dead center c, and the time e during which the punch 47 is located below the shearing position is defined as the return time as shown in FIG. 12b. It may be set within f. This can be done very easily by adjusting each crank mechanism 66, 72, and reliable and accurate interlocking can be expected.

As shown in FIGS. 1 and 2, the transfer table 9 that transfers the sealing film 4 formed by the press shearing device 7 to the sealing head device 12 of the sealing film welding device 10 is attached to the substrate 81 in the vertical direction. A rotary shaft 83 is rotatably supported around a vertical axis 80 via a bearing on a boss 82 extending through the rotary shaft 83, and a rotary table 84 is fixed to the upper part of the rotary shaft 83, and can be driven intermittently at the lower part. A driven gear 87 that meshes with a driving gear 86 of a cam unit 85 is attached. On the outer periphery of the rotary table 83, for example, six film holding stands 89 for adsorbing sealing films are arranged at regular intervals. The distal end of a guided member 91 arranged in the radial direction of the table is rotatably supported via a bearing, and the proximal end of the guided member 91 is connected to the rotary table 8.
The rotating table 84 is guided by a guide body 92 fixed in the radial direction to the rotary table 84 so as to be movable in the radial direction. A track cam follower 93 is attached to the lower part of the support shaft 90, and an arm 94 is attached to the lower part of the support shaft 90.
A rotating cam follower 95 is attached via the cam follower 95. A fixed table 96 is fixed to the boss 82, and a plurality of supports 9 are attached to the fixed table 96.
A holder guide portion 97 is provided along the rotation path A of the film holder 89 via 7a. This holding base guide portion 97 includes a pair of track cam plates 98a forming a track cam groove 98, a pair of rotation cam plates 99a forming a rotation cam groove 99, and each cam plate 9.
The track cam follower 93 is engaged with the track cam groove 98 to move the film holding table 89 in the radial direction of the rotary table 84, and the rotary cam follower 95 is engaged with the rotating cam groove 99, so that the film holding table 89 can be rotated about the support shaft 90. The rotation path A of the film holder 89 due to the rotation of the rotary table 84 is approximately along the circumference passing through the film receiving position B below the die 49 of the press shearing device 7, and also along the circumference of the film receiving position B below the die 49 of the press shearing device 7. A film transfer section 2 is formed which overlaps a part of the rotation path C of 12, and this film transfer section 2 is connected to the track cam in order to align the film holding table rotation path A with the seal head rotation path C. A groove 98 is formed along the seal head rotation path as shown in FIG. Further, the sealing film 5 punched and supplied by the punch 47 at the film receiving position B is placed, for example, on the film holding table 89 so that the longer diameter direction of the sealing film 4 is tangential to the support table rotation path A. The film is punched out and placed on the film transfer section 2, and then transported to the film transfer section 2. As shown in FIG. 3, the rotation cam groove 99 moves the rotation cam follower 95 so that the long diameter direction of the sealing film 4 faces in the tangential direction of the sealing head rotation path C in the film transfer section 2. Thus, the film holding table 89 is rotated via the arm 94 and the support shaft 90.

In addition, for example, two air holes 101 are formed on the upper surface of each of the film holding stands 89 in order to adsorb and hold the sealing film 4 and to discharge and separate it.A vacuum pipe 102 and a blow pipe 103 are connected to these air holes 102. , each pipe 10
Reference numerals 2 and 103 denote a vacuum valve 104 and a blow valve 10, which are arranged for each film holding table 89 on the rotary table 84 below the guide body 92, respectively.
5. Each of the vacuum valves 10
4 is connected to a vacuum hole 106 formed on the axis of the rotating shaft 83, and this vacuum hole 106 is connected to a main vacuum pipe 108 via a rotary joint 107 provided at the lower end. Further, each blow valve 105 is connected to a branch pipe 109 arranged at the upper end of the rotating shaft 83.
9 is connected to the main blow pipe 1 via a rotary joint 110.
11 and on the fixed table 96, the rotation path E of each valve 104, 105, the roll 104b of the operating rod 104a of the vacuum valve 104 and the operating rod 1 of the blow valve 105 are shown.
A vacuum cam 112 and an air blow cam 113 are provided which respectively act on the roll 105b of 05a. That is, the vacuum cam 112
is the rotation path of the vacuum valve 104,
A film holding table 89 is disposed in an area corresponding to the position from the front of the film receiving position B to the front position of the film transfer section 2,
It acts on the operating rod 104a to suck air from the pores 101 and hold the sealing film 4 by suction. Also, the air blow cam 113 is connected to the rotation path of the blow valve 105 on the film holding table 89.
is disposed within the film transfer section 2, acts on the actuating rod 105a of the blow valve 105 to discharge air from the pores 101, and seals the sealing film 4.
is passed to the seal head device 12.

The rotary table 84 is intermittently rotated in the direction of arrow D by a cam unit 85, and is indicated by a solid line in FIG.
As shown, the film holding table 89 stops at a film receiving position B where the sealing film 4 is delivered from the press shearing device 7. The film holding table 89 extending from the front to the rear of the film transfer section 2 is accelerated in the section from the stop position g to the confluence h of the seal head rotation path C, and from this confluence h to the branch point i. The film transfer section 2 is set to rotate at the same circumferential speed as the seal head device 12, and the section 1 from the branch point i to the next stop position j is set to be decelerated and stopped.

Next, the film welding device will be explained.

As shown in FIG. 6, on the frame 121,
A column-shaped rotor 11 having a central axis 123 on a vertical axis 122 is disposed, and this rotor 11
A ring gear 127 fixed to the lower surface of the rotor 11 is rotatably supported by an annular guide body 128 disposed on the frame 121 via a ball bearing 129. A rotary transformer 125 attached to the frame 121 via a support member 126 is connected to the lower end of the central shaft 123. On the base 130 below the frame 121 is a drive motor 1 with a reduction gear that continuously rotates the rotor 11.
31 is arranged, and a drive gear 132 attached to the output shaft passes through the frame 121 and is rotatably supported by the lower intermediate gear 134 of the intermediate shaft 133.
upper intermediate gear 1 on the upper part of intermediate shaft 133
35 meshes with the ring gear 127 and the rotor 11
is rotated in the direction of arrow F as shown in FIG.
The motor 131 also rotates the inlet and outlet star wheels 16 and 18 via an arbitrary interlocking mechanism (not shown).

Seal head devices 12 are disposed at predetermined intervals on the outer circumference of the rotor 11, and these seal head devices 12, as shown in FIG.
7.

First, the container holding part 14 will be explained with reference to FIGS. 13 to 15. A pair of left and right guide shafts 137 are rotatably suspended from a column top plate 136 forming the rotor 11, and a lower ring plate 138 along the outer circumference of the rotor 11 is supported at the bottom of the guide shaft 137 via a bearing 140. Ru. A linear motion bearing 14 is provided between both guide shafts 137.
1, an elevating body 142 is arranged to be able to rise and fall freely,
In addition, the base end of each guide shaft 137 is fitted onto the outside of the guide shaft 137 so as to be able to rise and fall freely through a linear motion bearing 143, and a pair of bottle chucks 144 that are rotatably connected to the upper surface of the elevating body 142 are attached.
will be placed. These bottle chucks 144 are
As shown in FIG. 15, a recess 144a into which the neck 1b of the container 1 can fit is formed at the opposite position of the tip, and the top surface 144b of the tip is used to hold the liquid stopper 2 inserted into the container 1. It is formed so that it can be locked on the lower surface of the lower end flange 2d. A bottle holder 14 is provided on the upper surface of the lower ring plate 138 and protrudes outward from between the guide shafts 137 via a support member 145.
6 is provided protrudingly, and the outer surface of this bottle holder 146 has an engaging recess 1 that can be engaged with the lower side surface of the container 1.
46a is formed. In addition, the lower ring plate 138
A bottle support plate 147 is provided on the outer upper surface of the container 1 so as to protrude along the lower ring plate 138 that can support the bottom of the container 1, and is engaged with a holder recess 16a formed on the outer periphery of the inlet star wheel 16 to hold the transported container. 1, the bottle support plate 147 and the bottle holder 14
6 and the bottle chuck 144.
hold it. Sector-shaped gears 148A and 148B are attached to the pair of guide shafts 137 that protrude downward from the lower ring plate 139, respectively, and are keyed so as to mesh with each other. A tension spring 150 is connected to rotate and bias the bottle chuck 144 in the direction of arrow E, which is the closing direction of the bottle chuck 144, and a cam follower 152 for opening and closing the bottle chuck 144 is provided on one guide shaft 149 via a swing arm 151. This opening/closing cam follower 152 is connected to the bottle chuck 14 in the seal head rotation path.
4 engages with an opening/closing cam plate 153 disposed along the section where the bottle chuck 144 is opened. A cam follower 154 for lifting and lowering the bottle is provided on the inner surface of the lifting body 142, and the cam follower 154 for lifting and lowering the bottle engages with a cam plate 155 for lifting and lowering the bottle disposed along the seal head rotation path. The bottle chuck 144 is raised and lowered to raise and lower the container 1.

Next, the film holder 13 is
This will be explained with reference to Figure 4. A frame 160 with open inner and outer surfaces is erected on the column upper plate 136, and a vertical shaft 163 is erected between the upper plate 161 and the lower plate 162. This vertical axis 16
Linear motion bearing 164 is installed at the top of 3.
An upper housing 165 is fitted onto the outside of the upper housing 165 so as to be freely raised and lowered.A pipe holder 167 in which a vertical through hole 166 is formed is biased on the outside of the upper housing 165. The upper part of a suction pipe 168 capable of suctioning the sealing film 4 into the opening is fitted and supported within the suction pipe so as to be movable up and down within a predetermined range. The upper end of this suction pipe 168 is connected to a vacuum valve 169 disposed on the top plate 161 of the frame body 160 via a connecting pipe, and this vacuum valve 169 is connected to the central shaft 1.
23 is connected to a suction pump (not shown) via a rotary joint 170 disposed at the upper end. This vacuum valve 169 has an operating rod 169b having a roller 169a at the tip, and a suction cam plate 171 disposed at a predetermined position on the seal head rotation path acts on the roller 169a of the operating rod 169b, causing the suction pipe Seal film 4 by 168
The adsorption effect is turned on and off. A regulation hole 172 passing through the upper housing 165 in the vertical direction is formed in the middle part of the upper housing 165, and a bolt 173 hanging from the top plate 161 of the frame 160 is movably inserted into the regulation hole 172. The head 173a at the lower end of the bolt 173 is connected to the upper housing 1.
65 and restricts the lower limit of the upper housing 165. And the upper housing 16
A cam follower 174 for lifting and lowering the suction pipe 168 is provided inside the suction pipe 168. The suction pipe 168 is moved up and down at a predetermined rotational position by the action of the plate 175. Furthermore, the suction pipe 168 is supported by a locking part 176 at the upper end and a locking ring 177 at the middle part of the suction pipe 168, and a compression spring 17 is fitted onto the suction pipe 168.
When the pipe holder 167 is lowered to its lower limit, the compression spring 178 urges the suction pipe 168 downward to bring the sealing film 4 into close contact with the mouth 3 of the container 1.

Next, the film welding portion 17 will be explained with reference to FIGS. 13, 14, and 16 to 18. A lower housing 182 is fitted to the lower part of the vertical shaft 163 via a linear motion bearing 181 so as to be movable up and down, and a heater holder 183 is fitted to the outside of the lower housing 182 so as to be movable around the suction pipe 168 . A heater block 185 is attached to the lower part of the heater holder 183 via a spherical bearing 184.
That is, the heater block 185 is formed in a cylindrical shape with a spherical seat 184a on the inner surface of the lower end, and has an insertion hole 186 for the suction pipe 168 on the upper surface portion 183a. A spherical body 184b with a heater block 185 fixed to the lower surface thereof is slidably fitted and supported on the spherical seat 184a, and an insertion hole 187 for the suction pipe 168 is provided at the center of the spherical body 184b and the heater block 185. 18
8 are formed respectively. Furthermore, the spherical body 184b is located within the space 189 of the heater holder 183.
A balance coil spring 190 that fits around the suction pipe 168 is interposed between the upper surface and the upper part of the heater holder, and urges the pressure contact surface of the lower end of the heater block 185 to be a horizontal surface. A heater block 1 is provided on the inner protrusion 191 of the lower housing 182 and is installed upright on the column top plate 136.
The cylinder rod 192a of the lifting air cylinder device 192 of 85 is connected to the lower housing 18.
2 and the heater holder 183, the heater block 185 is raised and lowered. An air supply pipe is connected to this air cylinder device 192 for lifting and lowering through a master valve 193, and this master valve 193 has a pilot valve 195 for lowering and a pilot valve 196 for raising which are arranged on the lower surface of the lower ring plate 138. Operating rods 195b, 1 are connected to each pilot valve 195, 196 and have rollers 195a, 196b at their tips.
96b is a descending and ascending cam plate 197, 1 disposed at a predetermined position on the seal head rotation path C.
98 and is engaged with the air cylinder device 192 for lifting and lowering.
is driven.

The heater block 185 has a heater 199 inside thereof, as shown in FIGS. 16 to 18.
and a thermocut pull 200, the heater 19
9 and the thermocouple 200 are connected to a temperature controller 203 on an upper ring plate 202 disposed along the circumference of the rotor 11 at the upper part of the frame 160 via a support 201, as shown in FIG. The heater block 185 is configured to constantly heat the sealing film 4 to a temperature at which it can be welded. An annular pressure contact portion 204 whose lower end surface is in pressure contact with the sealing film 4 is formed protruding around the insertion hole 188 at the bottom of the heater block 185.
A plurality of sub-heater blocks 205 (six in the embodiment) are arranged around the heater block 4 in the circumferential direction. This sub-heater block 205 has a cylindrical engagement part 206 formed along the circumferential direction at the upper end thereof, and this engagement part 206 is formed at the outer periphery of the upper end of the annular pressure contact part 204, and is an annular receiving groove having a semicircular cross section. 20
The sub-heater block 205 has an annular pressure contact portion 204 in a mounting hole 208 that is radially penetrated through the center of the sub-heater block 205 . The mounting bolts 209 planted on the outer peripheral surface fit loosely, and the heads 209a of the mounting bolts and the subheater block 2
The lower end of the subheater block 205 protrudes downward from the annular pressure contact part 204, and the lower end of the subheater block 205 projects downward from the annular pressure contact part 204. Tapered pressure contact surface 21 that widens downward
1 is formed and the opening 3 of the container 1 is displaced due to poor setting, the sub-heater block 205 swings outward as shown in FIG. Can be welded. Since the engaging portion 206 of the sub-heater block 205 has an arcuate shape in plan view, the shape of the annular receiving groove 207 is designed to be somewhat larger to allow for rocking. The subheater block 205 is heated by heat conduction from the contact surface with the heater block 185.

Here, the operation of the main members in the film welding apparatus 10 will be explained with reference to the timing chart shown in FIG. 19.

When the container 1 is supplied from the inlet star wheel 18 during one rotation of the seal head device 12 from the inlet star wheel 18, the bottle chuck 144 is first moved to close.
Hold the neck 1b of the container 1 in the recess 144a of 4,
Next, the bottle chuck 144 is raised to engage the lower surface of the flange 2d of the liquid stopper member 2 on the upper surface of the bottle chuck 144, and the container 1 is slightly raised from the bottle support plate 147. (About 2 to 3 mm) This is because the container 1 is made of resin and is elastic, and the bottom shape of the container 1 is not a planar shape that can be stably supported. This prevents the pressure contact force by the heater block 185 from working sufficiently. This is to do so. Furthermore, the suction pipe 168 that has adsorbed the sealing film 4 from the transfer table 9 is lowered to bring the sealing film 4 into close contact with the opening 3 of the container 1, and then the heater block 185 is lowered to transfer the sealing film 4 to the container. Welded to the opening 3 of 1. After this pressure welding section has passed, first the heater block 185 is raised, then the suction pipe 168 is raised, and the bottle chuck 144 is lowered to the receiving position and opens to transfer the sealed container 1 to the outlet star wheel 18. The reason why the bottle chuck 144 is further lowered depends on its positional relationship with the transfer table 9.
Also, at this transfer table 9 position, the suction pipe 168 is lowered somewhat and the film holding table 89 is moved downward.
Receive the upper sealing film 4.

At the time of emergency stop, the film welding device 10 has the following functions:
An emergency welding stop device 221 is provided which raises the heater block 185 that is welding the sealing film 4 under pressure to stop the welding and prevent seal failure due to excessive welding. This will be explained with reference to FIGS. 20 to 23. As shown in FIG. 20, the heater block 185 moves up and down in the film welding section 17 by moving the heater block 185 down on the frame 121 of the sealing head rotation path so that the heater block 185 moves downwards corresponding to the start and end points of the pressure welding section. Cam plate 197
and a rising cam plate 198, which are configured to act on the operating rods 195b and 196b of the descending pilot valve 195 and the ascending pilot valve 196, which are disposed at the upper and lower positions below the lower ring plate 139. be done. That is, the rotor 11 is rotated in the direction of arrow F, and the lowering cam plate 19
7 is the operating rod 19 of the lowering pilot valve 195
5b, the lifting air cylinder device 19 is activated via the master valve 193.
The second cylinder rod 192a is shortened, the heater block 185 is lowered, and the sealing film 4 is pressure-welded to the opening 3 of the container 1 at the pressure-welding section. The lifting cam plate 198 is connected to the roller 195 of the operating rod 195b of the lifting pilot valve 195.
a, the operating rod 192a of the lifting air cylinder device 192 is activated via the master valve 193.
The heater block 185 is raised by extending the heater block 185.
Nu is the rising section.

As shown in FIG. 20, the emergency welding stop device 221 is disposed outside the rotation path of the pressure welding section of the ascending pilot valve 196, and is arranged in a plurality (6 in the embodiment) in the circumferential direction. emergency cam plates 222a to 222f, which are divided into 222
and an emergency cam plate ejecting/retracting device 223 that protrudes to actuate the operating rods 196b of the ascending pilot valve 196, respectively. The emergency cam plate 2
The working surfaces of 22a to 22f are formed into circular arc surfaces along the seal head rotation path C, and the emergency cam plate 22a overlaps the lowering cam plate 197 outwardly.
22 will be extended. These emergency cam plate egress and withdrawal devices 223 consist of an air cylinder device 224, and a second
As shown in FIG. 3, these air cylinder devices 22
The electromagnetic switching valves 226 installed in the actuation air pipes 225 of No. 4 are each connected to and controlled by a control device 227 having a built-in timer. The descending cam plate 197 is also configured to be able to move forward and backward between the working position and the non-working position of the raising pilot valve 196, and has a cylinder device 227 for moving the descending cam plate 197 forward and backward. A device 228 and its switching valve 229 are provided. That is,
During normal operation when the descending cam plate 197 protrudes and acts on the ascending pilot valve 196, when an emergency stop is made due to some kind of failure, the descending cam plate 1 first
97 is retracted to the non-operating position by the egress and egress device 228, and the emergency cam plates 222a to 222f are moved to each egress and egress device 22.
3, the exit side (ascending cam plate 198 side), that is, the emergency cam plate 222f, which takes a long time to press and weld the sealing film 4 by the heater block 185.
The pilot valves 19 for lifting are successively projected from the
Heater block 1 after the proper pressure welding time by each heater block 185 has passed.
85 are raised and separated one after another. Then, after the last emergency cam plate 222a on the entrance side is projected to the operating position, all the emergency cam plates 222 are retracted to the non-operating position. Due to the above action, all the seals in the pressure welded section are completed. At the start of work, when the sealing film 4 is detected by a detection device (not shown) on the suction pipe 168 of the sealing head device 12, the lowering cam plate 197 is projected to the operating position and welding is started.

Next, the operation of this sealing device will be explained.

In the film punching device 8, the strip-shaped film 5 is continuously fed out from the feeding reel 31 of the film feeding device 6 by the continuous feeding roll 33.
is stored by the step roll 35, and
From this step roll 35 to the fixed pitch feed roll 38
is sent to the press shearing device 7 intermittently.
In this press shearing device 7, when the film strip 5 fed into the film holder 50 is stopped, the fixed pitch feed roll 38 is moved through the ratchet mechanism 6.
9 and the drive shaft 59 driven via the feed crank mechanism 66, the punch 47 is lowered and punched via the punching crank mechanism 72, and the sealing film 4 is formed. This sealing film 4 is attached to the film holder 8 of the transfer table 9.
9 is adsorbed and held by the pores 101.
Then, the sealing film 4 is blown with air from the air holes 101 to the film holding table 8 in the sealing head device 12 and the film transfer section 2 which is rotated synchronously.
9 and the suction pipe 168
It is held by suction at the bottom edge of. The seal head device 12 holding the sealing film 4 is rotated to receive the container 1 from the inlet star wheel 16 by means of the bottle chuck 144 and the bottle holder 146 of the container holder 14 and the bottle support plate 147. Then, the bottle chuck 144 is raised to raise the container 1, and the suction pipe 168
is lowered to bring the sealing film 4 into close contact with the opening 3 of the container 1. Furthermore, the heater block 18
5 is lowered, and the sealing film 4 is pressure-welded to the opening 3 of the container 1 by the annular pressure welding part 204 and the subheater block 205. More precisely, the periphery of the upper surface opening 2b of the liquid stopper member 2 and its peripheral edge 2c are welded under pressure. After a predetermined period of time, the suction pipe 168
Then, the heater block 185 is raised and the container 1 sealed by the outlet star wheel 18 is discharged onto the outlet conveyor 19.

According to the above embodiment, the film holding table 89 is made movable in the radial direction of the rotary table 84, and the track cam groove 9 is engaged with the track cam follower 93.
8 onto a part of the seal head rotation path C,
Since the film transfer section 2, which moves in synchronization with the rotation of the sealing head device 12, is formed in the rotation path 1 of the film holding table 89, stable transfer can be ensured and high speeds can be fully accommodated. Further, the film holding table 89 is rotatable around a support shaft 90, and a rotation cam groove 99 is engaged with a rotation cam follower 95 attached to the support shaft 90 via an arm 94.
a seal head device 12 that moves on a seal head rotation path in the film transfer section 2;
Since the sealing film is formed so as to face in a fixed direction with respect to the container 1, the sealing film can always be supplied in a fixed direction, and the sealing film 4 can be welded with respect to the container 1 in a fixed direction. Furthermore, a pore 101 is formed in the film holding table 89 to which a vacuum pipe 102 and a blow pipe 103 are connected, and a vacuum valve 104 and a blow valve 105 are connected to each pipe 102 and 103.
is configured to be operated by the vacuum cam 112 and air blow cam 113 disposed on the fixed table 96 to perform suction and discharge from the pores 101, so that the sealing film 4 can be reliably delivered and held. be able to.

Effects of the Invention As described above, according to the present invention, the film holder can move at the same speed as the sealing head device by guiding the track cam follower to the track cam groove along the rotation path of the sealing head device in the film transfer section. Since the paths are synchronously moved, the sealing film on the film holding stand can be stably transferred to the sealing head device in the film transfer section, thereby increasing the speed.

[Brief explanation of drawings]

1 to 23 show a sealing device according to an embodiment of the present invention, FIGS. 1 and 2 are a plan view and a side sectional view of a transfer table, and FIG. 3 is a rotation cam of the transfer table. FIG. 4 is a plan view of the entire sealing device; FIG. 5 is a front view of the entire sealing device; FIG. 6 is a partial side sectional view showing the film welding device; FIG. 7 a, b ,c
are an exploded perspective view of a container and a sealing film, an enlarged perspective view showing a sealed state, and a plan view showing a sealed state, FIG. 8 is a perspective view showing a film feeding device, and FIGS. 9 and 10 are a press shearing device. 11 is a timing chart showing the drive of the press shearing device, and FIGS. 12a and 12b are schematic diagrams showing the fixed pitch feeding roll and the press shearing device, and the timing showing the relationship between them. Chart diagram, Figure 13 and Figure 1
Figure 4 is a side sectional view and front view showing the seal head device, Figure 15 is a plan sectional view showing the container holding part of the seal head device, and Figures 16 and 17 are a partially cutaway side view and bottom view showing the heater block. Fig. 18 is a partial sectional view showing the usage state of the heater block, Fig. 19 is a timing chart of the seal head device, Fig. 20 is a schematic plan view showing the welding emergency stop device, Figs. 21 and 22
The figure is a plan view of the part shown in Fig. 20 and its side view, Fig. 23 is a piping system diagram of the welding emergency stop device,
FIG. 24 is a schematic explanatory diagram showing a conventional example. DESCRIPTION OF SYMBOLS 1... Container, 3... Mouth part, 4... Seal film, 7... Press shearing device, 9... Transfer table, 10... Film welding device, 11
... Rotor, 12 ... Seal head device, 13
...Film holder, 80...Vertical axis, 84...
...Rotary table, 85...Cam unit, 86...
... Drive gear, 87 ... Driven gear, 89 ... Film holding stand, 90 ... Support shaft, 93 ... Track cam follower, 94 ... Arm, 95 ... Rotating cam follower, 96 ... Fixed table, 98 ... ... Cam groove for track, 98a... Cam plate for track, 99... Cam groove for rotation, 99a... Cam plate for rotation, 101...
Stomata, 102... Bakyum pipe, 103...
Blow pipe, 104... Vacuum valve, 1
05... Blow valve, 112... Vacuum valve cam, 113... Air blow cam, A... Film holding table rotation path, C... Seal head rotation path, D... Film transfer section, E... Vacuum valve rotation Motion path, h...Blow valve rotation path.

Claims (1)

[Scope of utility model registration request] A rotary table that rotates around a vertical axis and is a sealing film transfer table in a sealing device that welds a sealing film to the mouth of a container using multiple sealing head devices arranged around the outer circumference of a rotating rotor. A plurality of film holders are provided at predetermined intervals in the circumferential direction of the rotary table, and are movable in the radial direction of the rotary table and capable of holding sealing films. A track cam groove is provided around the rotary table to engage a track cam follower and move the film holding base in the radial direction of the rotary table as the rotary table rotates, and is a part of the rotation path of the seal head device. The track cam groove corresponding to the film transfer section of the rotation path of the film holding table that overlaps with the film is formed so as to correspond to the rotation path of the seal head device, and the moving speed of the film holding table in the film transfer section is controlled. A transfer table for a sealing film in a sealing device, characterized in that the sealing film on a film holder is delivered to a sealing head device in synchronization with the moving speed of the sealing head device.