JPH05505328A - ski bottom repair machine - Google Patents

Abstract

The machine comprises a frame (1) containing at least one tray (2, 3) of granules which fall freeely into a tube (4) from which they are pushed by an Archimedean screw (6) into a preheating chamber (7) which turns them into a pasty material. Said material then passes into a heating element (11) for heating up to a suitable temperature for extrusion by means of an spreading slot (14) between two slightly projecting rods (15) on which the edges of the skis rest. This machine for repairing plastic glide surfaces of skis works, for example but not exclusively, by extruding plastic in the form of polyethylene granules.

Description

[Detailed description of the invention] ski bottom repair machine Technical field The present invention repairs plastic ski bottoms that are worn or damaged during use. Concerning machines for.

Foreground technology.

A currently known method for repairing or repairing ski soles is described in French patent A - Plasma on the surface of the ski to be repaired, as described in subheading 2,205.351. A method in which a stick film is applied and welded using the action of high temperature air and a pressurizing device. or alternatively as described in French Patent No. A-2,391.054. , a thermoplastic material in the form of a wire is passed through a heating block and attached to the bottom of the ski. It is piled up to create a sliding surface.

Disclosure of invention The repair machine of the present invention operates in a completely different manner. That is, in the present invention, the ski is pressed against the nozzle of the heating body by a roll, and the polyethylene is The plastic material in the form of particles is extruded and the skis are transported by the above rolls. I'm going to go.

The skis are supported by guides installed at the front and rear of the machine, and then the skis are fed. As the process progresses, the extruder applies a thin band of molten plastic. This program The plastic band is used for heat transfer and for the ski to be pressed against the heated body. is welded to the bottom of the ski to be repaired and fills the recess in the bottom with the pressure of Flatten unevenness.

The machine of the invention in its preferred embodiment comprises at least one plastic particle. A storage tank is provided, from which the particles fall by gravity into a tube, and the particles in the tube are It is pushed to the preheating body section by the Kimedes screw, where it is made into a paste state. page The plastic material in the form of a strip is further pressed into the heating body, where it is suitable for extrusion. temperature and extrude through the extrusion slit. Two bars on the edge of the slit is placed to support the edge of skiing.

The pressing and feeding of the ski against the bar of the extrusion device is driven by a small speed reducer. This is done by a role that is moved. This roll is controlled by a pneumatic jack that moves it up and down. , an adjustable pressing force is applied by the keys.

The introduction of the ski into the extrusion device and its reception after leaving the extrusion device are adjustable. This is done by means of telescoping arms.

An expansion device located at the front of the machine serves to center the skis and start the machine. Matata machine At the rear of the machine, three rollers center the ski and remove the repaired ski. Protect your keys.

Furthermore, it is equipped with an adjustment and control device and a compressor to control the operation of the machine. .

The present invention has been described with reference to the accompanying drawings, which illustrate preferred but non-restrictive embodiments of the invention. It will be better understood from the description that follows.

Brief description of the drawing FIG. 1 is a schematic elevational view of the ski bottom repair machine of the present invention.

2 is a side view of the machine of FIG. 1; FIG.

Figures 3 and 4 are detailed elevational and side views of the heating element.

Figure 5 is a detailed plan view of the ski introduction 6 guide, and Figure 6 is the ski feed center. In the drawings with detailed elevation views of the guide, the reference numeral l indicates the entire ski bottom repair machine, in particular The machine frame is shown. The top of the machine is made of plastic of the same or different material and color. Two vessels 2 and 3 are provided for storing particles. Non-restrictive, but preferably Polyethylene is used as the plastic particles.

Tubes 4 extend downward from each type 2.3, and Archimedean screws 6 are provided in these tubes. is being given. The pipe 4 is connected to the preheater section 7. This preheating body section is electronically controlled. A heating collar 8 whose temperature is controlled by a temperature measuring thermostat 9 is provided.

The Archimedes screw 6 is rotated by a small motor IO installed in the tank 2.3. be moved.

Each preheating body part 7 is an extruded body part shown in FIGS. 3 and 4! Contact l. This push The temperature of the exposed body is adjusted by an electronically controlled temperature measuring thermostat 13. A thermal cartridge 12 is provided.

The extrusion body part 11 is provided with an extrusion slit 14, and two slits are provided at the edge of this slit. A cylindrical bar 15 is placed. These bars are slightly below the plane of the slit 14. Set to stand out.

A plate 16 heated by radiant heat is installed in front of the extrusion slit 14.

A roll 17 is provided above each extrusion block 11, and this roll is connected to an arm 18. is mounted on the shaft at the end of the motor reducer 19 via the transmission controller. join to. The arm 18 is swingably mounted and connected to a pneumatic jack 20. This moves the roll 17 up and down. The pneumatic jack 20 adjusts Pressure air is sent from a compressor 21 whose pressure is regulated by a valve 22, and the pedal Operated by 23. The rotational speed of the roll 17 is controlled by a manually operated electronic transmission. By 25! QIi2ili is done. Horizontally extending inlets at the front and rear of the machine Child-type supports 24 are fixed, and these supports are equipped with rollers 26 for supporting the skis. is being given.

At the front of the machine and in front of the extrusion block 11, a pair of A ski introduction guide consisting of 27 skis is provided. those di g-2 7 are pivotally connected to each other by one common port 28 and are moved in the mutual direction by a spring 29. Being pulled. The gears G-27 each have a shoe 30 pivotally attached thereto. One side -1-27 actuates switch 31.

At the rear of the machine and behind the extrusion block 11 there is a U-shaped block as shown in FIG. Consists of three rollers mounted on a shaft 34 passed between the legs of a racket 33 A ski launch guide is provided. These rollers have two side rollers 35. A small-diameter central roller 36 is mounted with a bush 37 interposed therebetween.

A control panel is installed on the front of machine I (Fig. 1), and buttons T, T on this panel '+, Tt, the thermostat 9.13 and the transmission 25 are operated.

The ski bottom repair machine 1 of the invention operates as follows.

The ski to be repaired is supported by the front roller 26 and guided by the gear g-27. be introduced. So they expanded and turned on switch 31, thereby Machine 1 is started.

The plastic particles in the tank 2 fall into the tube 4 due to gravity and are prevented by the Archimedean screw 6. It is pushed to the heating body section 7, where it is changed into a paste state.

The paste plastic material is then pushed through the heating element by the screw 6. 11, where it is heated to a temperature suitable for extrusion by a heating cartridge 12. and then extruded in a thin layer through the slit nozzle 14 to form two strands of polished steel. Pass through between bars 15 and exit. Those bars are sending the edge of the ski To support. The skis are transported by rolls 17 controlled by a motor reducer 19. is driven and pressed against the bar 15.

The feed speed of the ski on the extrusion block 11 is determined by the transmission 2 operated by the button T. Adjusted by 5.

Centering of the ski is carried out by two shoes 30 in the entry section of the machine and again in the delivery section. This is done by three rollers 35, 36 at the same time. These rollers are filled with excess repair material. Protect the material from welding to the repaired ski bottom.

A thin band of extruded plastic material is attached to the damaged bottom of the ski. Due to the heat transfer of the material, the ski is pressed against the extruded body part 11. With the aid of the pressure of the rolling rolls 17, it is welded to the ski sole. That roll 17 Due to the compression of the ski, the thickness of the plastic material is several hundred times smaller than the ski edge. It does not exceed even a fraction of a millimeter, and there are no defects where the material sinks.

To facilitate welding, skis should be pre-heated before being exposed to plastic. It is heated by passing through the port 16 without contacting it. This method is the core of skiing No overheating of the original bottom material. Contact with the high-temperature extruded body If It only takes place linearly in places, and the transit time there is very short.

The machine is stopped before the end of the above passage to avoid spillage of material due to wiping action. Ru.

The machine of the invention makes it possible to select the most suitable material for the properties of the original ski. so that the original ski bottom and the repaired bottom have substantially the same glide properties. - two different extrusion devices that can be controlled together or separately to It is also possible to supply polyethylene different from the high-quality polyethylene.

The two extrusion posts reduce the efficiency of the machine. At least one particle storage tank (2, 3) is provided in the machine frame (1) of the machine, in which particles falls from there into the tube (4) by the force of the ball and is pre-empted by the Archimedean screw (6). The material is pushed to the heating body (7), where it is converted into a paste material and heated to extrusion. (11), in which the pasty material is suitable for extrusion. The two slightly protruding bars (15) supporting the edge of the ski are It is extruded through an elongated slit (14) provided at the edge.

The machine of the invention can be used, for example, but not exclusively, to produce plastics in the form of polyethylene particles. Also for repairing plastic ski soles by extruding the stock material. It is.

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Claims (11)

[Claims] 1. In a machine for repairing the bottom of skis of plastic material, skis The nozzle (1) of the heating body part (11) supports the skis suppressed by the sending gear (17). 4) The plastic material in the form of polyethylene particles is extruded through the Manipulate to weld a thin band of molten material to the bottom of the key to be repaired. A machine characterized by: 2. at least one particle storage tank (2, 3) is provided in the machine frame (1) of the machine; From there, the particles fall by gravity into the tube (4) and are pulled by the Archimedean screw (6). The material is then sent to the preheating body part (7), where it is converted into a paste material and heated and extruded. The pasty material is sent to the extrusion body (11), where it is extruded. Two slightly protruding pars (15 ) is extruded from an elongated slit (14) provided at the edge. Machine according to claim 1, characterized in that: 3. The feeding of the ski and the pressing of the extrusion device (11) against the par (15) This is done by a roll (17) driven by a motor reducer (19), and this roll is the adjustment of the pneumatic jack (20) which is supplied with compressed air from the compressor (21). Claims 1 and 2, characterized in that it is moved up and down by an adjustable pressing force. machine. 4. The skis are mounted on two telescoping arms (24) located at the front and rear of the machine. Machine according to claim 1, characterized in that it is supported by rollers (26). 5. At the ski introduction part of the machine, each shoe (30) is pivoted and a spring ( by means of a guide comprising two jaws (27) pulled in mutual direction by the ski is centered, and one jaw is used to control the switch that starts the drive parts of the machine. Machine according to claim 1, characterized in that it operates a switch (31). 6. In the ski delivery part of the machine, the two carried on the shaft (34) of the U-shaped bracket The skis are guided by two side rollers (35) and one central roller (36). 2. Machine according to claim 1, characterized in that the repair part thereof is also protected. 7. The roll (17) that feeds and presses the ski is connected to the operating jack (20). 4. The device according to claim 3, characterized in that it is mounted on the end of the connected swinging arm (18). machine. 8. The heated extruded body part (11) is connected to a heating cartridge (12) and a temperature measuring thermostat. 2. Machine according to claim 1, characterized in that it is equipped with a socket (13). 9. The preheating body part (7) includes a heating collar (8) and a temperature measuring thermostat (9). 3. Machine according to claim 2, characterized in that: 10. The rotational speed of said roll (17) is regulated by an electronic transmission (25). 3. Machine according to claim 2, characterized in that: 11. Equipped with two extrusion devices that can be operated together or separately, with one or two characterized in that plastic particles of one or two colors of three types of materials are supplied; A machine according to any one of claims 1 to 10.