JPH0451831Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a line belt for playgrounds that can mass-produce white line belts made of synthetic resin used for end lines, side lines of tennis courts, course lines of track and field events, etc. The present invention relates to manufacturing equipment.

(Prior technology) White line belts made of synthetic resin have recently become common for drawing lines on tennis courts, etc., but conventional white line belts of this type are made by manually punching holes in the belt material made of white synthetic resin. As a result, mass production was not possible at low cost, and the hole spacing could not be made constant.

(Problems to be solved by the invention) The problem to be solved by the invention is to eliminate the above-mentioned drawbacks and to continuously drill countless holes in a predetermined pattern on the belt material supplied from the belt material supply device. The goal is to cut the material into pieces of a certain length and provide it to customers.

(Means for solving the problem) The manufacturing device for a line belt for a playground according to the present invention has the following features:
Guide rollers are placed before and after a punching device that regularly arranges a large number of small holes in a synthetic resin belt material supplied from a belt material supply device, and a brake roller that can freely approach and separate from the guide roller on the front side is installed. At the same time, another guide roller is provided below the rear guide roller, and on one side of the punching device, an upper roller is located in front of the brake roller, and a lower roller is separate from the rear guide roller. A swingable dancer arm is provided between the guide rollers, and a length measuring roller and a cutter are further arranged behind the other guide roller.

(Function) In this type of device, a belt material made of synthetic resin is sent from a belt material supply device to a punching device through an upper roller of a dancer arm and a guide roller on the front side facing a brake roller. The belt material is fed to the cutter via the rear guide roller, the lower roller of the dancer arm, another guide roller, and the length measuring roller, and the belt material continues to be supplied at the base and fed at the end. However, if the brake roller is pressed against the front guide roller, the dancer arm swings on the rear side of the brake roller due to the feed of the belt material.
During this time, the portion of the belt material between the brake roller and the lower roller of the dancer arm maintains tension as the feed is temporarily stopped, so the punching device is activated to form the desired pattern on the desired portion of the belt material. During this process, the belt material supplied from the belt material supply device hardly slackens on the front side of the brake roller due to the swinging of the dancer arm. After drilling is completed, the brake roller is released from the guide roller, and the dancer arm is swung in the opposite direction to return to normal operation.The length is measured by the length measuring roller, and then the desired length is delivered. Cut by a cutter.

(Embodiment) Next, the present invention will be described in detail with reference to the illustrated embodiment. Reference numeral 1 denotes a punching device which is provided on a base 2 so that its position can be freely adjusted. A main punching machine 1a that punches 10 small holes in two rows, and the punching machine 1
A sub-punching machine 1b for punching small holes for inserting fixing pins of 2 mm in diameter at 10 cm intervals on both sides of the group of small holes punched by a is arranged above and below. Reference numeral 3 denotes a front guide roller provided on the entrance side of the punching device 1, and a brake roller 4 is disposed opposite to the guide roller 3 so as to be able to move toward and away from the guide roller 3. Reference numeral 5 denotes a rear guide roller disposed on the exit side of the punching device 1, and another guide roller 6 is disposed directly below the rear guide roller 5. Reference numeral 7 denotes a swingable dancer arm which is located on one side of the punching device 1 and whose center is pivotally connected by a pin 8. At the upper and lower ends of the dancer arm 7, there are an upper roller 9 and a lower roller 1.
0, and the upper roller 9 is located in front of the aforementioned front guide roller 3, and an auxiliary guide roller 11 is provided between the upper roller 9 and an extrusion molding machine (not shown) as a belt material supply device. Further, the lower roller 10 is located at an intermediate lateral portion between the aforementioned rear guide roller 5 and another guide roller 6. 12 is another guide roller 6
A rear guide roller is located on one side outside the lower roller 10, and above the rear guide roller 12 is a length measuring roller 13 equipped with an encoder, and an auxiliary roller 14 that is driven in contact with the length measuring roller 13. is provided, and this length measuring roller 13
A cutter 15 is provided on one side.

In this structure, a belt material 21 made of white synthetic resin with a width of 50 mm and a wall thickness of about 0.5 mm is supplied from an extrusion molding machine (not shown) and is wound around the upper roller 9 via an auxiliary guide roller 11. Upper brake roller 4 and front guide roller 3
It is guided to the punching device 1 through the guide roller 5 on the rear side, wrapped around the lower roller 10, and then wrapped around another guide roller 6, and further,
The belt material 21 is guided to the cutter 15 via the rear guide roller 12, between the length measuring roller 13 and the auxiliary roller 14, and continues to be supplied, and the punching device 1 and the cutter 15 are operated while swinging the dancer arm 7 as described above. If this is done, only the portion of the belt material 21 to be punched, which continues to be supplied when the punching device 1 is in operation, will temporarily stop while maintaining tension.
Innumerable holes are punched one after another in a predetermined pattern on the belt material 21 that is continuously supplied. Furthermore, after drilling, the length is measured by the length measuring roller 14 and then cut to a certain length by the cutter 15, so that the synthetic resin line belt of a certain length with countless small holes is continuously produced. This will be obtained.

(Effects of the invention) As is clear from the above description, the present invention involves arranging small holes in a predetermined pattern in the belt material that is continuously fed from the belt material supply device, and then cutting it to the required length to produce the product. This, combined with the advantage that it can be provided at a low cost since it does not require any manpower, has extremely great practical value.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention, and FIG. 2 is a partially cutaway perspective view of a line belt manufactured according to the present invention. DESCRIPTION OF SYMBOLS 1... Punching device, 3... Front guide roller, 4... Brake roller, 5... Rear guide roller, 6... Another guide roller, 7... Dancer arm, 9... Upper roller, 10 ... lower roller, 13 ... length measuring roller, 14 ... cutter.

Claims (1)

[Scope of utility model registration request] Guide rollers 3 and 5 are arranged in front and behind the punching device 1, which regularly arranges a large number of small holes in a synthetic resin belt material supplied from a belt material supply device, and approaches and separates from the guide roller 3 on the front side. A freely movable brake roller 4 is provided, and another guide roller 6 is provided below the rear guide roller 5, and an upper roller 9 is provided on one side of the punching device 1 in front of the brake roller 4 and a lower portion is provided. A swingable dancer arm 7 in which the roller 10 is located between the rear guide roller 5 and another guide roller 6.
An apparatus for manufacturing a line belt for a playground, further comprising a length measuring roller 13 and a cutter 15 disposed behind the another guide roller 6.