JPH0332769A - Ultraviolet irradiation device for producing tee for golf - Google Patents

Abstract

PURPOSE:To form a uniform UV curing resin layer over the entire surface of tees for golf by executing UV irradiation while moldings are held in vertically opposite directions and transferred by a 1st transfer device and a 2nd transfer device. CONSTITUTION:The resin is imparted to the clay molding 60 having a stem part 60a and an imposing part 60b by a UV curing resin supplying tank 48a. This molding with its imposing part faced upward is transferred by the 1st transfer device 14. The resin on the molding surface is cured in a UV irradiation section 40 en route thereof. A thermosetting resin is again imparted to the molding surface by a resin supply tank 48b and the molding with its stem part faced upward is transferred by the 2nd transfer device 16. The resin on the molding surface is cured in the UV irradiation section en route thereof. The uniform resin layer is thus formed on the surface, by which the strength is increased. The molding assimilates fortunately to the soil of a golf course if the resin to be embrittled by water is employed.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to an ultraviolet irradiation device for manufacturing golf tees,
In particular, the present invention relates to an ultraviolet irradiation device for manufacturing golf tees for forming an ultraviolet curable resin layer on the surface of golf tees.

(Prior Art) Conventional golf tees include those formed by, for example, cutting wood, and those formed by shaping synthetic resin into a bottom shape. If such a golf tee is left on the teeing ground or broken or scattered, it will not weather or rot, so it will stain the area around the teeing ground and cause environmental destruction. Further, there is the problem that these golf tees get caught in lawnmowers and the like.

In order to eliminate these drawbacks, it is conceivable to form a golf tee by shaping the bottom of clay or the like and drying it.

(Problem to be Solved by the Invention) However, such a golf tee has low strength, and therefore breaks when it is stuck into the teeing ground. Therefore, in order to increase the strength of such a golf tee, an ultraviolet curable resin layer is formed on its surface. A material that becomes brittle with water is selected as the material for the ultraviolet curable resin layer. By doing so, even if left on the teeing ground, the ultraviolet curable resin layer becomes brittle and the molded clay weathers and blends into the soil of the golf course. Therefore, if such a golf tee is used, there will be no inconvenience such as environmental damage on a golf course or getting caught in a lawn mower.

In order to form an ultraviolet curable resin layer on the surface of a golf tee, an ultraviolet curable resin is applied to a clay molding and UV rays are irradiated. The UV curable resin layer may not be formed in the blocked portion. In such a case, the strength of the portion of the golf tee where the ultraviolet curable resin layer is not formed is low, and the golf tee will break when the golf tee is stuck into the teeing ground.

Therefore, the main object of the present invention is to provide an ultraviolet irradiation device for manufacturing golf tees that can form a uniform ultraviolet curable resin layer on the surface of a golf tee.

(Means for Solving the Problems) The present invention provides a surface of a golf tee that includes a shaft portion having a sharp point at one end and a mounting portion formed at the other end of the shaft portion for placing a golf ball. This is an ultraviolet irradiation device for manufacturing a golf tee for forming an ultraviolet curable resin layer on a golf tee, the device comprising: a first transfer means for transferring the golf tee with the placing portion facing up; An ultraviolet irradiation device for manufacturing a golf tee, comprising: a second transfer means for transferring the golf tee; and an ultraviolet irradiation unit formed on a path of the first transfer means and the second transfer means. be.

(Operation) An ultraviolet curable resin is applied to a molded product having a shaft portion and a mounting portion, and the molded product is transferred by the first transfer means with the mounting portion of the molded product facing upward. In the ultraviolet irradiation section on the path, the molded article is irradiated with ultraviolet rays, and the ultraviolet curable resin is cured.

Furthermore, the thermosetting flower-shaped resin is again applied to the surface of the molded product, and the molded product is transferred with the shaft portion facing upward by the second transfer means. Then, in the ultraviolet irradiation section on the path, the molded article is irradiated with ultraviolet rays, and the ultraviolet curable resin is cured.

<Effects of the Invention> According to the present invention, it is possible to obtain a golf tee having a uniform ultraviolet curable resin layer formed on its surface. Therefore, by using this ultraviolet ray irradiation device for golf tee manufacturing to form an ultraviolet curable resin layer that becomes brittle with water, it is possible to obtain a golf tee that is strong and does not damage the golf course environment. .

The above objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

(Embodiment) FIG. 1 is a plan view showing an embodiment of the present invention, and FIG.
The figure is a side view thereof. This ultraviolet irradiation device 10 for manufacturing golf tees includes a conveyor 12. The conveyor 12 is
It includes a first transfer device 14 and a second transfer device 16 formed parallel to each other. The first transfer device 14 includes a first
a second bell) 18 and a second bell) 20. The first belt 18 is stretched over pulleys 22a and 22b attached to both ends of the conveyor 12 in the longitudinal direction. Further, the second belt 20 is placed over pulleys 24a and 24b attached to both ends of the conveyor 12 in the longitudinal direction. These pulleys 24a, 24b are connected to the pulleys 22a, 22, respectively, on which the first belt 18 is suspended.
attached close to b. Therefore, as shown in FIG. 3, the first bell l-18 and the second belt 20 are arranged close to each other.

A plurality of small pulleys 26 are attached between the pulleys 22a and 22b and between the pulleys 24a and 24b, and as shown in FIG.
Accordingly, the distance between the first belt 18 and the second belt 20 is kept constant.

A molded product in the shape of a golf tee is sandwiched between the first belt 18 and the second belt 20 and transported.

The second transfer device 16 is formed by a second belt 20 and a third belt 28 . The third belt 28 includes pulleys 30a attached to both ends of the conveyor 12 in the longitudinal direction.
and 30b.

These pulleys 30a and 30b are mounted in close proximity to pulleys 24a and 24b on which the second belt 20 is suspended. The distance between the second belt 20 and the third belt 28 is also kept constant by the small pulley 26. This second transfer device 16 is similar to the first transfer device 1.
Move in the opposite direction to 4. These first transfer device 14 and second transfer device 16 are connected to a pulley 2 by a motor 32.
It operates by driving 2a, 24a and 30a.

An ultraviolet irradiation section 40 is formed in the middle portion of the conveyor 12. As shown in FIGS. 5 and 6, the ultraviolet irradiation section 40 includes a housing 42, and four ultraviolet irradiation lamps 44a, 44b, 44c, and 44d are installed in the housing 42 in a vignetted manner. These UV irradiation lamps 4
4a, 44b.

44c and 44d are arranged so that the irradiation angle α of the ultraviolet rays with respect to the horizontal line is 26°. The passage of the first transfer device 14 is arranged at the intersection of the irradiation lights of the ultraviolet irradiation lamps 44a and 44b. Similarly, the passage of the second transfer device 16 is arranged at a position where the irradiation lights of the ultraviolet irradiation lamps 44c and 44d intersect. Therefore, the molded product transferred by the first transfer device 14 is irradiated with ultraviolet rays from the ultraviolet irradiation lamps 44a and 44b, and the molded product transferred by the second transfer device 16 is irradiated with ultraviolet rays. Lamps 44c and 44d
is irradiated with ultraviolet rays from

The ultraviolet irradiation section 40 also includes two exhaust fans 46a.
and 46b are attached. These exhaust fans 4
6a and 46b exhaust the air inside the housing 42 and prevent the temperature inside the housing 42 from rising.

An ultraviolet curable resin supply tank 48a is provided below the conveyor 12 between both ends of the conveyor 12 and the ultraviolet irradiation section 40.
and 48b are arranged. Ultraviolet curing resin supply tank 4
A nozzle (not shown) for spraying ultraviolet curable resin onto the golf tee is formed in 8a and 48b.

The ultraviolet curing resin is ejected from this nozzle by, for example, a near compressor (not shown).

Note that the excess ultraviolet curable resin that has fallen into the ultraviolet curable resin supply tank is recirculated and sprayed onto the golf tee again.

Further, a suction port (not shown) is formed in the ultraviolet curable resin supply tank 483, 48b. This is for sucking up excess ultraviolet curable resin that has been sprayed onto the golf tee. Excess ultraviolet curable resin is sucked out from a suction port by, for example, a blower (not shown).

When manufacturing golf tees using this ultraviolet irradiation device IO for golf tee manufacturing, feeder hoppers 503 and 50b are arranged on both sides of the conveyor 12 in the longitudinal direction. The feeder hopper 50a contains a molded article 60 made of, for example, clay and whose bottom is shaped like a golf tee. As shown in FIG. 7, this molded article 60 includes a shaft portion 60a having a sharp point at one end, and a mounting portion 60b formed at the other end of the shaft portion 60a. This molded article 60 is formed by press-molding clay using a plaster mold, for example, and drying it in a dryer at a temperature of about 80° C. for about 2 hours. These molded products are fed into the feeder hopper 50a.
and the first transfer device 14 by a packet conveyor 52a or the like placed between the packet conveyor 52a and the first transfer device 14.

At this time, the molded article 60 is transferred by the first transfer device 14 with its placement portion 60b facing upward. The molded product 60 is then stored in the ultraviolet curable resin supply tank 48a.
The lower half is sprayed with ultraviolet curable resin. As the ultraviolet curable resin, a material that becomes brittle when exposed to hardened water is used. At this time, excess ultraviolet curing resin is removed from the suction port. The molded article 60 transferred by the first transfer device 14 is irradiated with ultraviolet rays by the ultraviolet irradiator 40 on its path. by this,
An ultraviolet curable resin layer is formed on the surface of the molded article 60.

The molded product 60 with the ultraviolet curable resin layer formed thereon is once placed into the feeder hopper 50b by another conveyor 54.

The molded product placed in the feeder hopper 50b is conveyed to the second transfer device 16 by a packet conveyor 52b or the like placed between the feeder hopper 50b and the second transfer device 16. In the second transfer device 16, the molded product is transferred with its shaft portion 60a facing upward. And molded product 6
0, the remaining half is sprayed with ultraviolet curable resin in the ultraviolet curable resin supply tank 48b. Next, the molded article is irradiated with ultraviolet rays by the ultraviolet ray irradiating section 40 on the path. In this way, an ultraviolet curable resin layer is formed on the entire surface of the molded article 60.

In this ultraviolet irradiation device IO for manufacturing golf tees, the first
The molded article is held upside down and transferred by the transfer device 14 and the second transfer device 16. By doing so, a uniform ultraviolet curable resin layer is formed on the entire surface of the molded product.

A golf tee manufactured using this ultraviolet ray irradiation device 10 for golf tee manufacturing has high strength because a uniform ultraviolet curable resin layer is formed thereon. therefore,
This golf tee can be used in the same way as conventional wooden or synthetic resin golf tees. Moreover, even if this golf tee is left on the teeing ground, the ultraviolet curable resin layer will become brittle due to moisture, and the clay inside will weather and assimilate into the soil of the golf course.

Therefore, inconveniences such as environmental damage on golf courses and getting caught in lawnmowers do not occur.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention. FIG. 2 is a front view of the ultraviolet irradiation device for golf tee manufacturing shown in FIG. 1. FIG. 3 is an illustrative view showing a pulley used in the first transfer device of the ultraviolet irradiation device for golf tee manufacturing shown in FIG. 1. FIG. 4 is an illustrative view showing a small pulley used in the ultraviolet ray irradiation device for golf tee manufacturing shown in FIG. 1. FIG. 5 is an illustrative view showing the front of the ultraviolet irradiation section of the ultraviolet ray irradiation device for golf tee manufacturing shown in FIG. 1. FIG. 6 is an illustrative side view of the ultraviolet irradiation section shown in FIG. 5. FIG. FIG. 7 is a perspective view showing a molded product in the shape of a golf tee on which an ultraviolet curable resin layer is formed by the ultraviolet ray irradiation device for golf tee manufacturing shown in FIG. In the figure, IO is an ultraviolet irradiation device for manufacturing golf tees, 14 is a first transfer device, 16 is a second transfer device, and 40
indicates the ultraviolet irradiation part.

Claims (1)

[Scope of Claims] An ultraviolet curable resin layer is provided on the surface of a golf tee that includes a shaft portion having a sharp point at one end and a mounting portion formed at the other end of the shaft portion for placing a golf ball thereon. an ultraviolet irradiation device for manufacturing a golf tee, comprising: a first transport means for transporting the golf tee with the mounting portion facing upward; An ultraviolet irradiation device for manufacturing a golf tee, comprising: a second transfer means for transferring; and an ultraviolet irradiation unit formed on a path of the first transfer means and the second transfer means.