JPH04133593U - Cutter device for tube-shaped film - Google Patents

Abstract

(57) [Summary] [Purpose] To automatically and accurately cut and form a filling inlet on the surface of a tubular film. [Configuration] Slide rod 2 against film rod Z
and the guide rod 10 are installed in parallel, and the slide rod 2
A cutter block 1 with a cutter 5 and a guide roller 4 attached to the front surface of the upper end is attached so as to be rotatable to move forward and backward with respect to the film rod Z, and to be movable in the axial direction. A rolling roller 9R is installed which presses the guide rod 10 with the elastic force of the spring 9S and uses the reaction force to press the cutter 5 and guide roller 4 against the surface CFa of the tubular film CF.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention uses a tube-shaped film to seal and package various fillings. It is used in the technical field of automatic packaging machines for tubular films, and is Specifically, the inlet for filling the filler on the surface side of the above tubular film is placed horizontally. The present invention relates to a cutter device for a tubular film that can be cut in a direction.

0002

[Conventional technology]

A packaging film is formed into a tube shape in advance, and the surface of this tube-shaped film is filling the filling material in order from an inlet that is cut at intervals on one side (one side), and After filling, this inlet is closed with a horizontal seal, and the central part of this horizontal seal is also used to seal it. The automatic packaging machine for tubular film, which is configured to bisect the bag, can There is no need for a vertical sealer to vertically seal the product, and packaging can be done with just a horizontal sealer. Since the overall configuration of the machine can be simplified, it has been widely used for seal packaging of various powders or solids. It is widely used.

0003 In addition, in order to form inlets at intervals on the surface of the tubular film, Two guide rods (upper and lower) are connected to the film rod that wraps the tubular film. A cutter block with a cutter attached to this guide rod is installed in parallel. , by moving the cutter block laterally along the guide rod. Cut the front side of the tubular film hung on the above film rod horizontally with a A cutter device for tubular film configured to form the above-mentioned inlet is used. was used.

0004

[Problem that the idea aims to solve]

However, in the case of the conventional cutter device for tubular film configured as described above, , a film rod that wraps the tubular film to cut the inlet accurately Always keep the two guide rods for the cutter block perfectly parallel to the However, this adjustment work is very troublesome, and even if you take the trouble to make it parallel, it will quickly go out of order. This occurs because the cutter hits the film too hard due to the discrepancy in the spacing between the rods, causing the film to fall on the surface side. The film on the back side may be cut along with the film on the cutter. Sometimes the contact is too weak and it is not possible to completely cut the entrance, so please cut it. A lot of film is wasted due to failure, and the above-mentioned tubular film Various problems such as failures such as seal leakage occur in sealed packaging by automatic packaging machines. There was a problem.

[0005] Therefore, the technical problem of the present invention is to avoid the troublesome and difficult rod spacing adjustment. Also, always cut and form the filling inlet accurately on the tubular film. The object of the present invention is to provide a cutter device that can perform the following operations.

[0006]

[Means to solve the problem]

The measures taken in the present invention to solve the above technical problems are as follows. Cut the surface side of the tubular film horizontally, and insert the filling from the cut entrance. In an automatic packaging machine for tubular film, which is configured to fill and seal packaging There, (1) Guide rod is attached to the film rod on which the above tubular film is stretched. The rod and slide rod are installed parallel to each other with an interval above and below, and the slide rod is The upper end of the cutter block moves forward and backward relative to the film rod. The cutter block is rotatably mounted, and the cutter block is moved to the slide rod by a moving means. The upper end of the cutter block is configured to reciprocate in the axial direction of the cutter block. In this case, a tubular film is attached to the film rod as the cutter block moves. A cutter that cuts horizontally on the surface side of the film, and a cutter that cuts horizontally on the surface side of the film, and a cutter that cuts horizontally on the surface side of the film. A guide rod prevents the cutting edge of the cutter from reaching the back side of the tubular film. - Install the controller. (2) The back side of the cutter block above is constantly raised due to the elastic force of the spring. Push the cutter block toward the film rod by pressing it against the guide rod shown below. Able to install rolling rollers.

[0007]

[Effect]

The above means works as follows. Element (1) above moves the cutter block laterally along the slide rod. By doing so, the surface side of the tubular film hung on the film rod is It can be cut in the direction to form an inlet for the filling and also a guide roller. is in contact with the surface of the tubular film and the cutter edge does not reach the back side of the film. In order to ensure that the This allows for precise formation.

[0008] The element (2) above is such that the cutter block is always held in place by the elastic force of the spring. Since the pressure is applied in the direction of the ilm rod, there may be some deviation in the parallelism of these rods. Even if there is a change in the rod, the cutter should always follow the changes in the rod, and Since the rubber can be pressed against the surface side of the tubular film with the same pressing force, It makes it possible to precisely cut and form inlets on the surface of the film. As mentioned above, by solving the above-mentioned technical problem by the above-mentioned means, The problems of the conventional techniques can be solved.

[0009]

【Example】

The preferred implementation of the tubular film cutter device according to the present invention described above will be described below. Examples will be described in detail with the accompanying drawings. Figure 1 shows a tube-shaped film that implements the tube-shaped film cutter device of the present invention. FIG. 2 is a configuration diagram illustrating the flow of tubular film in an automatic packaging machine for film, In the figure, CFR is a tubular film wound into a roll, and this roll CF The tubular film CF pulled out from R is hung around film rods X, Y, and Z. After that, the film passes through a pair of upper and lower film feed rollers PA and PB and is heated horizontally at the front and rear. It is sent between the sealers HC and HC, and here both sides of the film CF are held by the left and right levers. Grasp the chucks CK and CK and move both chucks CK and CK slightly inward. As shown in FIG. The cut-formed inlet CR is expanded into a filling port CFO as shown in Figures 1 and 5. The filling material passes through the chute (not shown) from this widened filling port CFO in the direction indicated by the arrow. It is designed to be filled like N.

0010 In addition, the lever chucks CK and CK mentioned above move outward from the left and right after filling is completed. , and stretch the tubular film CF to the left and right with the filling port CFO closed. , The front and rear horizontal heat sealers HC, HC are shown in the figure from both front and rear sides of this stretched film surface. Perform the horizontal seal HS as shown in 2 to close the filling port CFO, and then A cutting means (not shown) using a cutter (not shown) or the like is used to cut the center cut line of this horizontal seal HS. By bisecting CT vertically, we created a chip with horizontal seals HSb and HSa on the top and bottom. The tube-shaped sealed bag CFP is designed to form a seal.

[0011] The cutter device for tubular film according to the present invention is an automatic packaging machine as shown in Fig. 1. In the machine, the surface CFa of the tubular film CF stretched over the film rod Z , insert a cutter from the direction of arrow T and cut the inlet CR shown in Fig. 5 horizontally to the surface CFa. The detailed structure is shown below. This will be described in detail based on the side sectional view shown in FIG. 3 and the plan view shown in FIG.

0012 3 and 4, 2 and 10 are vertically spaced apart from the film rod Z mentioned above. A slide rod and a guide rod are installed parallel to each other with a gap between them, and 1 is this slide rod. The cutter block with its lower end attached to the ride rod 2 is shown. The upper end front part 1a side of the cutter block 1 is rotated forward and backward relative to the film rod Z mentioned above. (rotation toward and away from the guide rod) and reciprocating movement in the axial direction of the guide rod 2. It is attached to the idle rod 2 so as to be rotatable and slidable.

[0013] 4 is rotatably attached to the upper end front part 1a of the cutter block 1 by means of the mounting shaft 3. The guide roller 5 is attached to the cutter block 1 by the holder 1b. This cutter 5 is a cutter attached to the upper front part 1a of the cutter 5. As the block 1 moves in the lateral direction, the tube wrapped around the film rod Z A filling inlet CR is cut horizontally on the surface CFa side of the tube-shaped film CF. On the other hand, the guide roller 4 moves the film along with the lateral movement of the cutter block 1. Rolling while pressing the surface CFa of the tubular film CF stretched over the Murod Z. Then, the cutting edge 5a of the cutter 5 reaches the back side CFb of the tubular film CF. There is a mechanism to guard against this.

[0014] Next, 6 is a cutter adjustment rod fitted into the upper part of the cutter block 1. Then, turn the adjustment screw 7 screwed into this rod 6 by operating the external dial 8. When the adjustment rod 6 is rotated, the adjustment rod 6 moves back and forth to move the cutter 5 engaged with the hook 6a. The blades move forward and backward at the same time, and the amount of protrusion of the cutting edge 5a can be adjusted. still , 7a indicates a ring (flange) that prevents the adjustment screw 7 from moving in the axial direction.

[0015] Further, 9 can freely appear and retract into a fitting hole 1c bored on the back side of the cutter block 1. 9R is a fitted press rod with a rectangular cross section, and 9R is rotatable at the tip of this press rod 9. The rolling roller installed in the figure is shown. 9S is a compression spring fitted into the above fitting hole 1c. This spring 9S always pushes the pressure rod 9 outward and the rolling roller 9R The circumferential surface of the cutter block 1 is pressed against the guide rod 10 mentioned above, and the reaction force is used to push the cutter block 1. The whole body is rotated to the left in FIG. 3, and the cutting edge 5a of the cutter S and the guide roller 4 are The same force is always applied to the surface CFa side of the tubular film CF suspended on the ilm rod Z. The system is designed to push the situation.

[0016] In addition, the drawing shows the cutter block 1 being reciprocated in the axial direction of the slide rod 2. Although the device for this movement is not listed, it is necessary to use an air supply for this purpose. Therefore, the magnet fitted into the slide rod 2 is moved and according to the attraction force of this magnet. A magnetic cutter that moves the cutter block 1 back and forth, or a cutter that uses hydraulic pressure or compressed air. A cylinder type that moves the block 1 back and forth, or a slide roller with a cam groove formed on the circumference. A cylindrical cover that moves the cutter block 1 back and forth by rotating the head 2 with a motor. Although there are some system formulas, the selection is arbitrary.

[0017] The tubular film cutter device according to the present invention has the structure as described above. Then, the tubular film CF stretched over the film rod Z is intermittently moved at a constant speed. While feeding, the feed of the film CF is stopped by a moving device for the cutter block 1. If the cutter 5 moves laterally along the slide rod 2 while it is stopped, the cutter 5 will be stopped. It is possible to cut and form a filling inlet CR on the surface CFa of the tube-shaped film CF. In addition, when forming this cut, the guide roller 4 is placed on the surface CFa of the film. guard so that the cutting edge 5a of the cutter 5 does not reach the back surface CFb of the film. Therefore, the inlet CR is cut only on the surface CFa of the tubular film CF. Therefore, cutting to the back surface CFb can be prevented.

[0018] In addition, when forming the cut at the entrance CR with the cutter 5, the spring 9S In order to press the rolling roller 9R against the guide rod 10 and roll it by the elastic force of The reaction force firmly pushes the guide roller 4 onto the surface CFa of the tubular film CF. By bringing them into contact with each other, the cutter 5 can accurately form a cut at the entrance CR.

[0019]

[Effect of the idea]

As described above, according to the tubular film cutter device according to the present invention, For filling on the surface side of the tubular film without the troublesome parallel adjustment of the rod. Because the inlet can always be precisely cut and formed, this is When used in an automatic film packaging machine, it can form an inlet for filling tubular films. and one that can automate the entire process of filling and sealing. This allows sealing products using tubular film to be manufactured quickly and accurately. It has the advantage of being extremely economical and can be manufactured at low cost.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing the flow of a film in an automatic packaging machine implementing a cutter device for tubular film according to the present invention.

FIG. 2 is a configuration diagram showing a state of horizontal sealing for a tubular film.

FIG. 3 is a side sectional view of the present invention.

FIG. 4 is a plan view of the present invention.

FIG. 5 is a perspective view of a tubular film having an inlet cut according to the present invention;

[Explanation of symbols]

CF tubular film CFa surface CFb back side CR filling inlet HC horizontal seal Z film rod 1 Cutter block 2 Slide rod 4 Guide roller 5 Cutter 9 Pressure rod 9S spring 9R rolling roller 10 Guide rod

Claims (1)

[Scope of utility model registration request] Claim 1: An automatic packaging machine for tubular film configured to cut the surface side of the tubular film horizontally, fill the film through the cut inlet, and seal the packaging. A guide rod and a slide rod are installed parallel to the film rod on which the film is hung, with an interval above and below, and a cutter block is mounted on the slide rod so that the upper end of the cutter block is rotated so that it moves forward and backward relative to the film rod. The cutter block is movably mounted and configured to be reciprocated in the axial direction of the slide rod by a moving means, and a tube is attached to the upper end of the cutter block and is hung around the film rod as the cutter block moves. A cutter that cuts the front side of the tubular film horizontally, and a guide roller that touches the surface of the tubular film and guides the cutter so that it does not reach the back side of the tubular film are installed. The cutter for tubular film is equipped with a rolling roller that can receive the elastic force of a spring and constantly press against the guide rod to push the cutter block toward the film rod. Device.