DESCRIPTION Related Art

The invention relates to injection machines which are used in the expandable polystyrene (EPS) sector.

The invention relates to particularly formation of travelling mechanism of the injection machines which are used in the polystyrene (EPS) sector with a type of jack lever and actuator.

Prior Art

Plastic injection is a method of production. This method is based on the idea of injecting the molten plastic raw material into a mould which is prepared earlier according to the desired physical properties; and obtaining the raw material which is cooled to become hard as the product.

With the plastic injection method which is used commonly in the plastic sector, production can be done without any dimensional conditioning. The first known injection machine was made during the 1930s.

As in every production method, there are certain stages in this method as well; and production is realized by following these stages.

1 ) Closure: Injection machines are comprised of three main components: These are the clamp system which is called closure unit; the injection unit; and the mould. Closure unit is the system which clenches the mould during the processes of cooling and injection. It prevents deformation of the mould's form and keeps the raw material that is in the interior statically under pressure. 2) Injection: It is the stage where plastic raw material is poured in to the section on the injection unit. By means of an electric - engine - driven screw, the molten plastic raw material is transmitted up to the end of the cylinder. 3) Pressing: It is a process which is applied so that no clearance is left in the mould. Pressure is applied to the raw material which is injected into the mould and the mould is completely filled.

4) Cooling: It is the hardening process of the raw material which is injected into the mould in molten form.

5) Demoulding; Closure unit (clamp system) opens up both sides of the mould.

6) Extrusion: The product which is obtained is extruded out of the mould by the help of skidders.

Polystyrene is a polymer which is manufactured from styrene in monomer structure by polymerization method. Its raw material is petroleum. In plastic industry, it is known by the name of PS. When polystyrene is in the room temperature, it is thermoplastic in hard form.

During the processes of injection and extrusion, it becomes a solution because of the high temperature. It hardens again when cooled.

Properties of Polystyrene: High resistance to acid alkaline and salts; good resistance to UV light; high impact and tension resistance; reasonable cost; easy machining. Fields of use of Polystyrene: Rubber, insulating materials, automobile components, single use products (glasses, plates, yoghurt containers, diluted yoghurt containers), thin walled containers, styrofoams, pipes, cooling towers, panels, plastic accessories of electronic equipments, fish boxes, fruit and vegetable boxes, packages of electronic accessories, white appliances packages, decorative internal and external siding products, floor heating panels, ICF construction elements.

Today drive system of EPS injection machines is hydraulic or electric-operated. The system which is used in these machines requires an extremely powerful locking system to ensure that the mould remains closed during product pressing. The locking system is ensured by means of hydraulic pressure or mechanical lock-up. The locking process which is ensured with hydraulic pressure or mechanical lock-up causes drive system to consume too much energy.

Ensuring the locking process with hydraulic pressure lock entails a sophisticated and/or complicated hydraulic system, electricity and reducer. Maintenance and repairs of the above mentioned locking systems which require mechanical lock-up or hydraulic pressure lock is difficult.

In the hydraulic pressure or locking systems in the prior art, direction of operation is constant. And that does not make it possible to ensure the horizontal and vertical running with the same system. As a result; the reasons for the drawbacks which are disclosed above, and the inadequacy of the present solutions for the subject-matter have made it necessary to make an improvement in the related art.

Brief Description of the Invention

The invention aims to solve the above mentioned negativisms, being created on inspirations by the present situations.

Purpose of the invention is to ensure that the injection machine should run both horizontally and vertically, together with the locking system it has.

Another purpose of the invention is to ensure reduction of power consumption which is required for the drive system of the machines in the EPS injection production sector by half in comparison with those hydraulic and electric -operated drive systems that are used in the prior art.

Another purpose of the invention is to ensure reduction of maintenance and repair works with the locking system which it contains in itself.

Figures that will help to understand the Invention Figure - 1 is a dismantled (disassembled) view of the preferred embodiment of the actuating mechanism (100) according to the invention.

Figure - 2 is an assembled view of the actuating mechanism (100) according to the invention, which is positioned horizontally onto the injection machine (10). Figure - 3 is an assembled view of the actuating mechanism (100) according to the invention, which is positioned vertically onto the injection machine (10).

The drawings must absolutely be put to scale; and the details which are not essential to understand the present invention may have been omitted. Besides, the members which are at least identical substantially; or at least have identical functions substantially are shown with the same number.

Description of the References

10. Injection machine

100. Actuating mechanism

1 0. Top gear effort arm

111. Bearing carrier

112. Gear effort lever

20. Bottom gear effort arm

130. Threaded rod nut

131. Contact member

140. Threaded rod supporting nut

150. Threaded rod

160. Actuator member

170. Support member

180. Top fixing element

90. Bottom fixing element

00. Leg

01. Fixing means

10. Bottom body

11. Bottom surface

12. Side surface 213. Static contact plate

220: Moving body

221. Rail joint member

222. Moving body steam chamber

223. Moving contact plate

230. Top body

231. Static steam chamber

232. Top body side surface

240. Column profile

250. Linear slide

260. Mould fastening means

270. Support bar

280. Filling tube

281. Fixing plate

282. Fixing rod

290. Extractor unit

Detailed Description of the Invention

The invention is actuating mechanism (100) of the injection machine (10) which is used in the expandable polystyrene (EPS) sector, top gear effort arms (110) and bottom gear effort arms (120) which provide the capability of equiangular motility during the opening and closing of the said mechanism (100),

at least one actuator member (160) which provides the drive that is required for the opening and closing of the said mechanism (100),

threaded rod (150) which is connected with the said actuator member (160) by its one end; and provides transmission of the opening and closing movement to the said top and bottom gear effort arms (1 10, 120) of the actuating mechanism (100); and ensures the locking of the said mechanism (100), threaded rod nut (130) which ensures the said threaded rod (150) to be • embedded from its other end,

at least one threaded rod supporting nut (140) which provides bedding of the threaded rod (150); and ensures its actuator member (160) connection, - top fixing elements (180) to which top gear effort arms (1 10) are connected; and are fixed to the moving body (220) of the injection machine (10), bottom fixing elements (190) with which bottom gear effort arms (120) are connected; and are fixed to the bottom body (210) of the injection machine (10).

In Figure 1 , a dismantled (disassembled) view of the preferred embodiment of the actuating mechanism (100) according to the invention is given. Top gear effort arm (1 0) is connected with the bottom gear effort arm (120) by means of the contact member (131 ) which is positioned on the threaded rod nut (130) that ensures threaded rod bedding. The other top gear effort arm (1 10) on the other hand is connected with the other bottom gear effort arm (120) by means of the connection member (131 ) which is positioned on the threaded rod supporting nut (140) that ensures bedding of the threaded rod (150) and its connection with the engine (160). In preferred embodiment of the invention, servo motor is used as actuator member (160). Threaded rod (150) gets connected with the actuator member (160). Threaded rod (150) is embedded inside of the threaded rod nut (130) and threaded rod supporting nut (140). Threaded rod (150) performs a function as drive for opening and closing actuating mechanism (100), it ensures locking of the actuating mechanism (100). Duty of the actuator which is connected with the threaded rod (150) on the other hand is to provide the drive which is required for opening and closing of the actuating mechanism (100) to the actuating mechanism (100).

When the actuating mechanism (100) is in motion and the injection mechanism is under load, support members (170) that ensure gear effort arms (1 10, 120) to remain rigid are positioned between the effort lever (1 12) which comprise the said arms (1 10, 120).

In Figure 2, an assembled view of the actuating mechanism (100) according to the invention onto the injection machine (10) positioned in horizontal form is given. The injection machine (10) is positioned in horizontal form on the legs (200). In horizontal position, legs (200) are connected with the fixing means (201 ) which have been positioned on the side surfaces (212, 232) of the fixed bottom body and top body. Other ends of the legs (200) on the other hand are connected with the ground. Top gear effort arms (1 10) are connected with the moving body (220) by means of the top fixing element (180) which is connected with the moving contact plate (223).

The power which the actuating mechanism (100) needs to provide the movement of the moving parts which are positioned on the injection machine (10) is at minimal level, the power which is required for the locking is the highest level. Horizontal position is selected according to the exit direction of the material to be manufactured out of the machine (10).

In Figure 3, a assembled view of the actuating mechanism (100) according to the invention onto the injection machine (10) which is positioned in vertical form is given. Bottom gear effort arms (120) are connected with the static contact plate (213) that is connected with the static bottom body (210) by means of the bottom fixing element (190). For the material which is to be manufactured in vertical position, composite product manufacturing is done by putting other materials (plastic, metal, wooden, aluminium, etc.). Injection machine (10) is positioned on the legs (200) when it is also in vertical position. However, in vertical position, the legs (200) are connected with the fixing means (201 ) which have been positioned on the side surface (212) of the static bottom body (210). Other ends of the legs (200) on the other hand are connected with the ground.

Movement (220) of the moving body is ensured by means of the movement of the rail joint member (221 ), on the linear slides (250) which are positioned on the column profiles (240). Moving body steam chamber (222) is positioned on the moving body (220). Static steam chamber (231 ) on the other hand is positioned under the static top body (230). Mould fastening means (260) is positioned on the support bar (270).

When the injection machine (10) is in horizontal position or vertical position, it is connected with the static top body (230) by means of fixing plate (281 ) and fixing rod (282), filling tube (280) to be ninety degrees to the ground. For the motion process which is carried out in the injection machine (10), injection machines (10) with larger surface area can be made by increasing the number of self locking mechanisms (100). Horizontal and vertical positions can be used in situations desired. Injection machine (10) gets a horizontal position by means of the legs (200) which are positioned on the fixing means (201 ) that are positioned on the bottom body side surface (212).

Injection machine (10) gets a vertical position by means of the legs (200) which are positioned on the fixing means (201 ) that are positioned on the bottom body bottom surface (21 1 ).