JPH0411772Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a nameplate attachment tool that presses and fuses nameplate attachment protrusions provided in advance on a workpiece made of thermoplastic material.

"Prior Art" A large number of various nameplates are attached to machines. In particular, a large number of instruction nameplates, direction nameplates, circuit nameplates, etc. are attached to the covers of small control equipment.

On the other hand, covers for these control devices are often molded from low-cost thermoplastic resin, and nameplates can be attached to these resin covers by molding small protrusions for attaching the nameplate at the same time as the cover is molded. Generally, a nameplate with a groove is passed through the small protrusion to form a corresponding small hole and is pressed and fused using a small hand press equipped with a heater.

Conventionally, with the nameplate attachment tools used for attaching the nameplates mentioned above, the lower end of the machining head with a built-in heater has the bare metal surface, is not equipped with a temperature controller, and is not equipped with a temperature controller. It did not have a stopper to adjust the stroke.

``Problems that the invention seeks to solve'' However, with conventional nameplate attaching tools like this, the surface temperature on the machined surface is not constant, resulting in excessive or insufficient fusion, and many machined surfaces remain bare metal. While welding small resin protrusions, the resin may adhere to the processed surface and make the fused surface rough, and since the pressing force depends on the operator's intuition, the small protrusions may be crushed too much. On the other hand, there were problems such as insufficient pressing force, resulting in poor fusion.

The present invention was developed by focusing on these conventional problems, and it does not allow resin to adhere to the processing head even when many nameplates are attached, maintains a stable surface temperature, and does not rely on the intuition of the operator. The purpose of the present invention is to provide an additional tool for attaching a nameplate, which allows the nameplate to be attached without having to do so.

``Means for Solving the Problems'' The gist of the present invention to achieve this purpose is that a workpiece made of thermoplastic material is provided with a nameplate attachment protrusion, and the nameplate attachment A nameplate attaching tool is equipped with a processing head equipped with a built-in heater that pressurizes and fuses small protrusions at the lower end of a pressurizing rod that can be moved up and down by lever operation. The machining surface of the machining head is coated with a fluororesin that does not contain any fluorine, and the machining head is provided with a temperature regulator for regulating the temperature of the built-in heater, and the machining rod is provided with a stopper for stroke adjustment. There is an additional tool for attaching the name plate.

"Operation" First, according to the height of the cover to be processed,
Adjust the stroke of the pressure rod and determine the position of the stopper. Next, the cover with the small protrusion for attaching the name plate is placed in a predetermined location with the surface facing upward, and then the lever is pulled to press the processing head against the small protrusion.

The processing head is preheated and kept at a constant surface temperature, and the stroke of the pressure rod is adjusted in advance and the stopper position is fixed, so there is no need to be as careful as before when adjusting the pressing force. Without brushing, the small protrusion melts and becomes flat, and when the pressure rod comes into contact with the stopper, raise the lever and complete the machining.

The processing surface of the processing head is coated with fluororesin, which does not adhere to the thermoplastic resin that makes up the workpiece, so the processing surface is always kept clean even when processing a large number of parts. The machined surface of the small protrusion that holds the nameplate is flat and beautiful, and the height is kept constant so that no defective fusion occurs.

Work is done by changing the height of the stopper depending on the height of the cover and the height of the small protrusion.

When the heat capacity changes due to changes in the material of the cover or the thickness of the small protrusions, the temperature controller is used to adjust the heater temperature to the optimum temperature.

“Embodiment” An embodiment of the present invention will be described below based on the drawings.

Each figure shows one embodiment of the present invention.

As shown in FIG.
A small hand press 10 that moves up and down, and a processing head 3 that is attached to the tip of the pressurizing side of the pressurizing rod 16 of the hand press 10 via a heat insulating member 31.
It consists of 0.

The hand press 10 includes a base plate 11 equipped with a work guide 12 that determines the position of a workpiece W such as a cover, and a space on the top surface of the base plate 11 in which a workpiece W such as a cover can be placed, and a base plate 11 provided with a workpiece W such as a cover. An upright support 13, an arm member 14 extending horizontally from the top of the support 13 toward the work W mounting side of the base plate 11, and the arm member 14.
Head column 15 fixed vertically at the tip of
It consists of.

A pressure rod 16 that is movable up and down is held within the head column 15, and a return spring (not shown) is disposed within the head column 15 to always bias the pressure rod 16 upward. ing.

The pressure rod 16 is provided with a guide groove 1 along one generatrix so that the pressure rod 16 does not rotate within the head column 15 and always maintains a constant direction.
A guide piece 18 for guiding the guide groove 17 is fixedly provided on the head column 15 side.

Furthermore, a rack 19 is cut along the generatrix of the pressure rod 16 relative to the arm member 14.

On the other hand, a pinion (not shown) that meshes with the rack 19 formed on the pressure rod 16 is fitted to a shaft 20 that is horizontally supported by the arm member 14. A handle lever 21 for rotating the pinion is attached.

Furthermore, a stopper bolt 22 equipped with a stopper nut 23 for stroke adjustment is screwed into the tail end of the pressurizing rod 16.

On the other hand, the machining head 30 has a heat insulating member 3 attached to a mounting block 24 fixed to the tip of the pressure rod 16.
1, the head body 32 has a flat lower surface and a processed surface 33 covered with a fluororesin 33a;
It consists of a heater 34 that emits heat, and a temperature regulator 35 that detects the temperature of the processing surface 33 and controls the amount of heat generated by the heater 34.

Next, the action will be explained.

The workpiece W is placed on the base plate 11 in alignment with the workpiece guide 12.

As shown in FIGS. 2 and 3, a small protrusion 40 for attaching a name plate M is previously provided on the upper surface of the workpiece W, and the name plate M is placed on the small protrusion 40.

The heater 34 is energized in advance, and the temperature regulator 35 is adjusted to a predetermined temperature corresponding to the material of the workpiece W.

The position of the stopper nut 23 is also adjusted according to the height of the workpiece W.

When the above preparations are complete, gently lower the handle lever 21, the pinion will rotate, and the engaging rack 1 will rotate.
Push down on 9.

The machining surface 33 of the machining head 30 is connected to the small protrusion 40.
When the small protrusion 40 comes into contact with it, it gradually dissolves and is crushed, becomes flat as shown in Figs. 4 and 5, and spreads over the notch 45 of the nameplate M. 16 is stopped from lowering by a stopper nut 23.

When the push-up force applied to the handle lever 21 is loosened, the pressure rod 16 is raised by a return spring (not shown), and the nameplate attachment process is completed.

When machining workpieces W of different heights, the position of the stopper nut 23 is adjusted to perform the machining.

Moreover, when the fusion temperatures of the workpieces W are different, processing is performed by changing the set temperature of the temperature regulator 35.

In this embodiment, the work guide 12 on the base plate 11 is fixed, but a plate jig for a specific work may be provided, or the base plate 1 may be fixed.
1 may be replaced by a simple moving table, cross table, etc.

"Effects of the invention" According to the nameplate attachment tool of the present invention, the optimal welding temperature can be selected according to the workpiece material, and the processing surface temperature is detected and controlled to a constant temperature, making it possible to process There is no variation in temperature due to the number of pieces, etc., and there is no possibility of defective fusion.

In addition, since a stopper is provided to keep the pressing force constant, there is no possibility of over-smashing or insufficient pressing.Furthermore, since the machining surface is coated with a fluorocarbon resin that does not blend with the resin material of the workpiece, the machining head The machined surface is always kept smooth, resulting in a beautiful and high-quality mounting surface.

[Brief explanation of the drawing]

Each figure shows one embodiment of the present invention. Figure 1 is an overall front view of the additional tool for attaching a name plate, Figure 2 is a plan view of the workpiece, Figure 3 is a front view of the workpiece, and Figure 4 is a top view of the workpiece. Fig. 5 is a plan view when the nameplate is attached to the plate, and Fig. 5 is a side view as well. T... Nameplate attachment additional tool, W... Workpiece, 10...
... Hand press, 11 ... Base plate, 13 ... Support column, 14 ... Arm member, 15 ... Head column, 16 ... Pressure rod, 21 ... Handle lever, 22 ... Stopper bolt, 23 ... Stopper nut, 30 ... Processing head, 32 ... Head main body, 33 ... Processing surface, 33a ... Fluorine resin, 3
4...Heater, 35...Temperature controller, 40...Small protrusion for attaching name plate.

Claims (1)

[Scope of Claim for Utility Model Registration] A processing head that is provided with a nameplate attachment protrusion previously provided on a workpiece made of thermoplastic material, and that has a built-in heater that pressurizes and fuses the nameplate attachment small protrusion, In the nameplate attaching tool provided at the lower end of the pressure rod that moves up and down by lever operation, the machining surface of the machining head is coated with a fluororesin that does not fuse with the workpiece material at the machining temperature; An additional tool for attaching a name plate, comprising: a temperature controller for adjusting the temperature of the built-in heater; and a stopper for stroke adjustment provided on the processing rod.