JPH0667320U - Saw blade positioning device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] When attaching the saw blade to the carton,
It is necessary to secure the correct mounting position, otherwise sharpness will be impaired. (EN) Provided is a positioning device which eliminates the positional deviation and can be applied even when the raw material of the saw blade is a material other than metal. When a saw tooth blade sheet is punched out from a saw tooth blade raw material 18 and attached to a carton base material, an intake port 21 is formed on the surface of the punching die blade and A saw-tooth blade positioning device characterized in that the blade 21 is connected to an intake source through a ventilation path 22 provided in the mold.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a device for attaching a saw blade for cutting a film to a carton case that stores a wrapping film for food packaging used in a kitchen or the like, and in particular, after punching the saw blade, The present invention relates to an apparatus in which a positional deviation does not occur until it is bonded to a carton base material.

[0002]

[Prior art]

 Materials commonly referred to as cooking sheets, such as synthetic resin wrapping films and aluminum foils used for packaging foods in kitchens, etc., are usually rolled into rolls and then made from paperboard. It is stored in a carton case (hereinafter referred to simply as a carton). In use, the edge of the film or aluminum foil is pulled out from the carton, and then the cutting edge is attached to the front part or lid of the carton, that is, the cutting edge is formed in a sawtooth shape. It is cut into a desired length through (hereinafter, simply referred to as a cutting blade or a sawtooth blade) and then used. By the way, the cutting blade attached to the carton is generally made of metal, but recently, a cutting blade made of vulcanized fiber has been put on the market. This is because metal sawtooth blades tend to hurt fingers when grasping the carton, but vulcanized fiber does not cause such anxiety and can be incinerated. In addition, a normal paper or plastic saw blade may be used instead of the metal saw blade.

By the way, when the saw blade is attached to the carton, it is necessary to secure an accurate attachment position. Even if the attachment position is slightly deviated, the edge of the blade will be a film or a film. -There is a problem that the sharpness is impaired without being caught by the gut. Therefore, conventionally, the above-mentioned problems have been prevented by the following means. That is, since the conventional sawtooth blade is mainly made of metal, the sawtooth blade is punched into a predetermined shape from a metal plate, which is the material of the sawtooth blade, and the sawtooth blade is bonded to the carton base material. The magnetic force of a magnet built in the punched die blade is used to attract and hold it on the surface of the die blade to prevent misalignment.

[0004]

[Problems to be solved by the device]

 However, the method using a permanent magnet or electromagnet as described above cannot be used when the material of the saw blade is other than metal, and cannot be similarly applied to the case of aluminum. It is also conceivable that an attempt could be made to apply a liquid having adhesive force between the punching die blade and the punched sawtooth blade and prevent the positional displacement between the two by the adhesive force. However, in that case, it is not practical because the saw blade tends to be contaminated and it is difficult to maintain the proper amount of liquid applied.

[0005]

[Means for solving problems]

 According to the present invention, the surface of a die blade for punching a saw blade is provided with an intake recess or a through hole, and the punched saw blade is sucked through the recess or through hole. A sawtooth blade positioning device was developed which was characterized in that the punched sawtooth blade was held in an appropriate position with respect to the carton base material, and thereby the above-mentioned problems were solved.

That is, in the present invention, an intake hole is formed on the surface of a die blade for punching a saw blade to hold the saw blade punched by the die blade by suction. While moving the saw blade to the saw blade mounting surface of the carton base material while holding the saw blade on the die surface through this air intake hole, then the saw blade is bonded to the carton by the crimping mechanism. Is.

[0007]

[Function of the device]

 Therefore, according to the present invention, the punched sawtooth blade moves while being attracted to the die surface, so that it is always appropriate for the carton base material supplied directly below the die blade. The position can be maintained for accurate saw blade cutting.

[0008]

【Example】

 In the figure, reference numeral 11 is a magazine for storing a large number of carton base materials p in a stacked state, and the carton base materials in the magazine are conveyed one by one from the lower side via the suction pad 12. Is transferred onto the belt conveyor 13 and is fed to the saw blade mounting device 14 mounted on the discharge end side of the conveyor. The mounting device 14 has a die blade composed of an upper blade 15a and a lower blade 15b for punching a saw blade as shown in the drawing, and a cylinder mechanism 16 for driving the upper blade, and an upper blade. An ultrasonic welding horn 17 is provided near the conveyor 13 at a position facing 15a. Reference numeral 18 is a saw-tooth blade roll-up roll, 19 is a roll for feeding the roll, and 20 is a guide rod for sliding the upper blade. FIG. 2 is an enlarged cross-sectional view showing an essential part of the above-mentioned saw blade mounting device 14, which is a position close to the discharge end of the conveyor 13 and on the upper surface side of the conveyor, as an example. Two lower blades 15b divided into two are provided in a fixed state. An upper blade 15a that slides in the vertical direction while maintaining a fitting relationship is provided between the two lower blades 15b, and this upper blade is driven by the cylinder mechanism 16 as described above. The supplied raw fabric 8 is punched into a sawtooth blade having a predetermined shape by meshing with the lower blade 15b.

By the way, in the present invention, as an example, a plurality of intake ports 21 are bored in the punching surface of the upper blade 15a, and the intake ports constitute the upper blade. It is connected to the ventilation path 22 provided in the mold. The suction force is applied by a vacuum generating device such as a vacuum pump, and the timing for generating the suction force is attached to one end of the air passage 22 by attaching a solenoid valve or mechanical valve (not shown). Allow it to be set freely. In the present invention, the intake port connected to the ventilation passage is used to blow out the pressurized air at a timing other than the above-mentioned suction to discharge the paper dust, dust, etc., which have entered during the suction. It can be operated to prevent functional deterioration.

FIGS. 6 to 7 show an example of the above-mentioned saw blade raw material 18. In this figure, a vulcanized fiber-1 having polyethylene films 2 and 2 for moisture prevention formed on both front and back surfaces is used. The following shows an example of the opposite use. While feeding the raw material 18 in the direction of the arrow, the strip-shaped saw tooth blade sheet 3 as shown in the drawing is punched out while cutting it into a saw tooth edge shape by engaging the upper blade 15a and the lower blade 15b. . The portion of the saw blade formed on the saw blade sheet 3 is designated by reference numeral 4. Further, the strip-shaped saw-tooth blade sheet 3 formed as described above is adhered to the carton base material p having the form shown in FIG. 8 as an example.

The structure of the present invention is as described above, and the raw material (see FIG. 7) fed from the raw material winding 18 for the saw blade is a punching blade that has descended from above, that is, a die blade. The saw blade sheet 3 formed by the upper blade 15a is formed by a plurality of intake ports 21 provided on the surface of the upper blade 15a. Since it is sucked and fixed by vacuum, no positional deviation occurs after cutting. Therefore, it is accurately applied to the carton base material p previously supplied by the transfer conveyor 13, and then closely contacted and sealed via the ultrasonic welding horn 17. While the upper blade 15a is returning to the upper side, the valve can be operated to blow the compressed air from the port to clean the inside of the hole.

[0012]

[Effect of device]

 If the material for the saw blade is made of a material other than metal, it cannot be positioned by the conventional magnetic force, but according to the present invention, it can be applied regardless of the material and the die Since it uses the adsorption phenomenon through the suction port provided on the surface and does not use a special adhesive, it does not stain the sawtooth blade sheet and both sides of the mold surface. Does not occur. Moreover, since it can be adhered to the carton base material in a state where the position is fixed at the same time as punching, it becomes possible to hold the saw tooth blade mounting position with high accuracy.

[Brief description of drawings]

FIG. 1 is a skeleton cross-sectional view of the entire apparatus showing an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view showing a main part of the punching die as above.

FIG. 3 is a partial front view of the same.

FIG. 4 is an explanatory view showing a relative relationship between an upper blade and a lower blade in the same punching die.

FIG. 5 is a plan view of the upper blade of the same.

FIG. 6 is an enlarged cross-sectional view showing an example of a saw tooth blade sheet.

FIG. 7 is a plan view showing a state in which the sheet is punched out from an original fabric.

FIG. 8 is a development view of a carton which is an example of the carton base material.

[Explanation of symbols]

 1 Vulcanized Fiber 2 Polyethylene Film 3 Punched Sawtooth Blade Sheet 4 Sawtooth Blade 11 Magazine 12 Suction Pad 13 Conveyor Conveyor 14 Sawtooth Blade Mounting Device 15a Upper Blade 15b Lower Blade 16 Cylinder Mechanism 17 Ultrasonic Welding Horn 18 Sawtooth Blade Roll 19 Feeding Roller 20 Guide rod 21 Intake port 22 Ventilation path

Claims (2)

[Scope of utility model registration request] 1. When a sawtooth blade sheet is punched out from a sawtooth blade raw material and attached to a carton substrate, an intake port is formed on the surface of the punching die blade and the port is formed. -A sawtooth blade positioning device in which the blade is connected to an intake source through a ventilation path provided in the mold. 2. The saw blade positioning device according to claim 1, wherein the raw material for the saw blade is made of metal, paperboard, vulcanized fiber, plastic plate, or a composite material thereof.