JPH0579564B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device that clamps and processes continuously supplied elongated sheets in accordance with printed patterns, etc. In the process of filling the inner solution into the cylinder and separating and shaping each packaging container, it is necessary to stamp the crease line of the container to match the pattern of the band-shaped sheet, or to match the cylindrical body to the pattern of each container. The present invention relates to an apparatus for holding and processing elongated bodies such as the above-mentioned belt-shaped sheets and cylindrical bodies when separating and sealing them.

[Prior Art] In an apparatus for obtaining each packaging container filled with contents from a band-shaped sheet on which a single pattern of a developed view of the packaging container is continuously printed, a crease line stamping process is performed to shape each packaging container. , vertical sealing process to form a tube body, process of filling the tube body with contents, horizontal sealing process of dividing the tube body filled with contents into each packaging container, cutting process of the horizontal seal part, and shaping into a hexahedral container. There is a process.

Conventionally, as a horizontal sealing mechanism for horizontally sealing a tube body, a rotating disk that is continuously driven to rotate,
A plurality of upper molds are provided in the circumferential direction of the rotating disk, and each has an upper mold located inside the rotating disk in the radial direction, and a lower mold located radially outside and provided so as to be able to come into contact with and separate from the upper mold. It is known that the tube body is provided with a clamping mold body, and a tube body that is continuously supplied between the upper mold and the lower mold is clamped between the upper mold and the lower mold to perform a horizontal seal. (Unexamined Japanese Patent Publication No. 56-48903
Publication No.).

The horizontal seal mechanism moves each clamping mold body in the radial direction of the rotating disk to change the circumferential spacing of each clamping mold body, thereby changing the length of the container partitioned by the horizontal seal. Equipped with a horizontal seal position adjustment mechanism to change the position of the seal.

Furthermore, conventionally, each of the upper and lower molds constituting the clamping mold body is provided with an engaging pawl, and each engaging pawl is engaged with one of the ratchet pawls provided around the entire circumference of the endless chain that circulates. There is also known a device in which the spacing between adjacent clamping bodies is changed by conveying them synchronously and by changing the engagement positions of the above-mentioned engaging claws and ratchet claws (Japanese Patent Application Laid-Open No. Publication No. 58-160210).

Note that the crease line stamping process and the horizontal sealing process need to be done in a predetermined position according to the sheet pattern, and both processes are performed while holding the sheet or tube body, so the type of the holding process is different. The only difference is the shape etc. Therefore, both processes basically have the same configuration.

[Problem to be Solved by the Invention] The above-mentioned former horizontal seal position adjustment mechanism has the purpose of moving each clamping body in the radial direction of the rotating disk according to the length of the container when the horizontal seal mechanism stops operating. It was not possible to change the circumferential spacing of the clamping bodies during operation of the transverse sealing mechanism.

Therefore, during operation of the horizontal sealing mechanism, even if there is no misalignment between the printing pitch of the elongated body and the pitch of the clamping mold body, the seal against the printed pattern may occur due to slips, etc. between the long body and the clamping mold body. During printing, the position of the seal gradually changes with respect to the printed pattern due to misalignment in transport of the elongated body, thermal expansion or contraction of the elongated body, and a misalignment between the printing pitch and the pitch of the clamping body. Even if a pattern misalignment occurs, it is not possible to change the location where the long body is held by each clamping body to accommodate the misalignment, so it is necessary to apply horizontal seals at accurate positions to match the pattern of the long body, or to place horizontal seals on the crease lines. It was not possible to engrave it.

In addition, in the latter device, the spacing between each clamping mold body is changed stepwise for each pitch of the ratchet pawl, so it is possible to adjust the position of each clamping mold body to the optimal position according to the above-mentioned deviation. Therefore, it was not possible to apply a horizontal seal at an accurate position or to stamp a crease line in accordance with the pattern of the long body.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention includes a rotating disk that is continuously driven to rotate, and a plurality of rotating disks provided in the circumferential direction of the rotating disk, each of which has a rotating disk. a clamping mold body having an upper mold located on the inside in the radial direction and a lower mold located on the outside in the radial direction and provided so as to be able to come into contact with and separate from the upper mold, and continuous between the upper mold and the lower mold. In an apparatus for sandwiching and processing a long body fed continuously between an upper die and a lower die in accordance with a printed pattern etc. of the continuous body, the rotating disk A cam member is rotatably provided for each clamping mold body, and each clamping mold body is provided so as to be swingable in the rotational direction of the rotating disk, and each clamping mold body is brought into contact with the cam member to rotate each cam member. The square clamping type body can be displaced in the rotational direction of the rotating disk according to the rotational angular position, one end of the rotating arm is attached to each of the cam members, and a cam follower is provided at the other end of each rotating arm, A return rod is provided on the outside of the rotary disk, which engages with the cam follower that is transferred as the rotary disk rotates, and moves the cam follower to a predetermined original position. An operating rod is provided that engages with the cam follower that is transferred as the cam member moves, displacing the cam follower from the original position in the radial direction of the rotating disk to rotate the cam member; The cam follower is provided with driving means for moving the cam follower in the radial direction and adjusting the amount of displacement of the cam follower in the radial direction by the operating rod.

[Function] According to the above configuration, each clamping mold body is basically positioned at its basic original position by the return rod. In this state, if the pattern on the elongated body and the clamping location of each clamping body match, there is no need to adjust the interval between the clamping bodies, but if the pattern and the clamping location are misaligned, In this case, it becomes necessary to adjust the spacing between the clamping mold bodies according to the amount of deviation.

In such a case, by moving the operating rod in the radial direction of the rotating disk by the driving means, the cam follower, which is transferred as the rotating disk rotates, is engaged with the operating rod, and the cam follower is moved in the radial direction of the rotating disk. can be displaced in the radial direction of the rotating disk. By displacing the cam follower in the radial direction of the rotating disk, it is possible to rotate a cam member that is interlocked with the cam follower via a rotating arm, and the rotation of the cam member causes each clamping mold body to rotate through the rotation of the rotating disk. direction.

At this time, by displacing the clamping mold body forward in the rotational direction of the rotating disk, the distance between the clamping mold body and the clamping mold body preceding the clamping mold body can be narrowed, or the clamping mold body can be moved forward in the rotation direction of the rotating disk. It is possible to widen the distance between the clamping mold body and the clamping mold body continuing from the clamping mold. Alternatively, by displacing the clamping mold body backward in the rotational direction of the rotary disk, the distance between the clamping mold bodies adjacent in the front and back can be narrowed or widened.

After the elongated bodies are clamped with the intervals adjusted, each clamped body is returned to its original position by the return rod.

Therefore, if there is a misalignment between the printed pattern and the clamping location due to misalignment of the elongated body during transportation or thermal expansion or contraction of the elongated body while the rotating disk is rotating, the process will be carried out according to the amount of misalignment. By moving the operating rod in the radial direction of the rotating disk, the displacement can be reliably eliminated.

[Embodiment] The drawings show a horizontal sealing mechanism showing an embodiment of the present invention, and FIGS. 1 to 4 show a structure in which a clamping body swings after clamping a long body.

Reference numeral 1 denotes a rotating disk, on which a large number of clamping bodies 2 are arranged radially at regular intervals.

The clamping type body 2 has a base 3 rotatably supported by a rotary disk 1 , and an eccentric cam 6 , which is rotatably supported by the rotary disk 1 , is fitted into a long hole 5 at the tip of the support 4 . It matches.

The cam follower 8 of the rotary arm 7 of the eccentric cam 6 is regulated by an operating rod 9 installed at a position to clamp the elongated body 20 being transferred at a constant speed, and the eccentric cam 6 is rotated by the rotary arm 7 to hold the clamped body 2. Make it swing in the direction of movement.

The operating rod 9 is operated by a cylinder 10, and the swinging direction of the clamping mold body 2 is determined by the shape of the eccentric cam 6.

Further, a return rod 11 is provided to fixedly move the elongated body 20, also called the clamping type body 2, to an appropriate position in the moving direction from the operation rod 9, and return the rotary arm 7 rotated from the operation rod 9 to its original position.

Therefore, due to the rotation of the eccentric cam 6, the clamped body 2 swings in the moving direction or in the opposite direction using the shaft support 4 as a fulcrum, and the clamped body 2, which has fast-forwarded the clamped elongated body 20 or delayed its movement, is returned to its original position by the return rod 11. It returns to the radial position of the rotating disk 1 and maintains the fixed position of the front and rear clamping bodies.

Therefore, the eccentric cam 6 that swings the clamping body 2
By detecting the pattern of the elongated body 20 being transferred through the horizontal sealing process and electrically controlling the cylinder 10 that regulates the rotation of the elongated body 20, it is possible to clamp the elongated body 20 at a predetermined position.

A lower mold 13 that separates from the upper mold 12 of the clamping mold body that clamps the elongated body 20 to form a lateral seal has one end attached to the upper mold 12.
It is rotatably supported by a shaft 14, and swings and rotates on the rotary disk 1 together with the upper die 12.

The trochanter 15 provided on the lower mold 13
Torsion guide groove 16 that constantly slides as it rotates.
The twisted portions 16a are separated from the upper mold 12, and the twisted portions 16b are brought into contact with the upper mold 12.

Further, a constriction arc plate 17 is installed outside the lower mold 13 between the non-twisted portions 16b, and is in rolling contact with a pressing rotor 19 provided below the contact with the upper mold 12 with a spring 18 interposed therebetween. Since the lower mold 13 is pressed against the upper mold 12 by the elastic force of the spring 18, a clamping pressing force can be obtained without being affected even if the clamping mold body 2 swings.

The fifth example shows an embodiment in which the clamping mold body 2 is oscillated before clamping the elongated body 20 and before the subsequent clamping mold body clamps the elongated body. The other configurations are the same except for the installation location.

The operating rod 9 is provided at an appropriate position before the clamping type body 2 clamps the elongated body 20, and the return rod 11 is fixed at a position where it is immediately applied after the clamping type body 2 clamps the elongated body 20. ing.

[Effects of the Invention] The present invention enables fold line stamping or horizontal sealing by accurately adjusting the position of each clamping mold body according to a pattern printed in advance on a long sheet. Since it is possible to perform stamping and horizontal sealing according to the transfer speed without stopping the continuous transfer, it is possible to achieve a marked increase in efficiency compared to conventional devices.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the main parts of an embodiment of the present invention, FIG. 2 is an enlarged front view showing the vicinity of the cylinder 10 shown in FIG. 1, and FIG. A cross-sectional view taken along the direction, FIG.
FIG. 5 is a front view showing the relationship between the torsion guide groove 16 and the trochanter 15 with the rotating disk 1 omitted in the figure, and FIG. 5 is a front view of the main parts showing another embodiment. DESCRIPTION OF SYMBOLS 1... Rotating disc, 2... Clamping type body, 4... Pivotal support, 6... Eccentric cam (cam member), 8... Cam follower, 9... Operating rod, 10... Cylinder (driving means), 12 ... Upper mold, 13 ... Lower mold, 16
...Torsion guide, 17... Arc plate for pinching, 19...
...pressing trochanter.

Claims (1)

[Scope of Claims] 1. A rotating disk that is continuously driven to rotate, and a plurality of upper molds provided in the circumferential direction of this rotating disk, with upper molds located on the inner side in the radial direction of the rotating disk, and upper molds on the outer side in the radial direction. a clamping mold body having a lower mold positioned so as to be able to come into contact with and separate from the upper mold, and a long body continuously supplied between the upper mold and the lower mold with the upper mold. In a device that clamps and processes continuously supplied long bodies according to printed patterns, etc. between a lower mold and a lower die, a cam member is attached to the rotating disk so as to be rotatable for each clamping die. Each clamping mold body is provided so as to be swingable in the rotational direction of the rotary disk, and each clamping mold body is brought into contact with a cam member to rotate each clamping mold body in a rotating circle according to the rotational angular position of each cam member. The plate is movable in the direction of rotation of the plate, one end of a rotating arm is attached to each of the cam members, a cam follower is provided at the other end of each rotating arm, and a cam follower is provided on the outside of the rotating disc. A return rod is provided that engages with the cam follower that is transferred as the rotary disk rotates and moves the cam follower to a predetermined original position, and that also engages with the cam follower that is transferred as the rotating disk rotates. , an operating lever is provided for displacing the cam follower from the original position in the radial direction of the rotating disk to rotate the cam member, further moving the operating lever in the radial direction of the rotating disk, and displacing the cam follower by the operating lever 1. An apparatus for clamping and processing continuously supplied elongated objects according to printed patterns, etc., characterized by being provided with a drive means for adjusting the amount of displacement in the radial direction. 2. The operating rod is placed in a position where the cam follower of the preceding clamping type body is moved from its original position after the preceding clamping type body clamps the elongated body and before the following clamping type body clamps the elongated body. and the return rod is provided at a position for returning the cam follower of the preceding clamping type body to its original position after the succeeding clamping type body has clamped the elongated body. An apparatus for holding and processing continuously supplied elongated objects according to printed patterns, etc., as claimed in claim 1. 3 The return rod is placed in a position to return the cam follower of the preceding clamping type body to its original position after the preceding clamping type body has clamped the elongated body and before the continuing clamping type body clamps the elongated body. and the operating rod is provided at a position to move a cam follower of the subsequent clamping type body from its original position before the subsequent clamping type body clamps the elongated body. An apparatus for clamping and processing continuously supplied elongated objects according to printed patterns, etc., according to claim 1.