SU515646A1 - Installation for the rotational formation of plastic products - Google Patents

Description

one

This invention relates to plastics processing devices.

Installations for the rotational molding of mass-produced parts are known, which contain molds installed on the paired guides with 1; the possibility of reciprocating movement of the trolley, equipped with a planetary gear for rotating the shape around its two oceii, heating and cooling chamber and cooling equipment; .

The purpose of the invention is to increase the productivity of the plant and the shortage of the occupied uload.

; 1, h in clause of the attached device; Kame;; and for / heating and cooling: 1 and iyol; Ein in the form of a vnlanetarnogo transmission, fitted across the trolley to the bearing and drive bearings of the planetary gear not directly connected to the central wheel of the planetary transmission , in the form of a ring in the form of a ring, kinematic ;: associated with the inner surface of the form, located inside the chamber, and the outer one - with the drive of rotation of rolling bearings; The goal of ease of maintenance is in the kinematic chain connecting the outer surface of the rotary-driven rotary ring, including an additional drive and differential transmission; the mechanism, which drove through eamitormo; - p, at the transfer is connected to

2

donolitel npi: i5o; ioM, and the device for cooling the forms is installed on the foot lever.

FIG. 1 Schema / .Ie depicts the proposed installation, the general view; on phpg. 2 - mc, in plan; in fig. 3 - Kipemat Sches-Iel and the gear, times: place: .1N1oy on those,; zhke.

Utaiovka for a rotational form, 3 n.iaeiMacc coeioirr, .o two established steam drives for 1 person 2, equipped with a 3-way reciprocating cable, eia and heating chamber 4 n o.yy, 1 with za re 1 le1p1 on napy / i iiiii liOBepxHOCin ro 7-claiuonajiiio 7 n claiiuonajiiio vertical n; 1: - e.1. 8. Inside the chambers.) heat 9 cooling -I on trolley 2 set; 1ena on supports 10 and so forth; one PLF sprocket 1, KOiOpbie Ustyl: 1, they are on e-shafts 12 i 13. Shaft 13 prig single sprockets 1i through a pair of 14, 15 and a planet 1) H1); d) c yKj4; r 6 sv:; and an electric motor 17.

Camera pagreva n cool1p; , made in the form of a planetary gearbox, is associated with its central track, made in the form of a ring 18, and a rotating roller 19.

The outer surface of the ring 18 with a sleeve-sleeve module attached to it; csmmo 20 is coupled with an asterisk 21, forming a block 22 with a cordless block, mounted freely on the shaft 13. The gear 22 blocks through gears 23, 24, the differential mechanism 25 and the planetary gear 16 is connected to an electric motor 17. The inner surface of the ring is attached to it - the sprocket chain 26 is coupled with an asterisk 27, rigidly mounted on the end of the shaft 28, at the other end of which a pinned gear 29 is fixed, connected to the gear 30 of the spindle 31 of the rotational drive of form 9, which is connected to the idle at spindle 32.

The water differential mechanism 25, included in an actuating circuit connecting the outer surface of the ring 18 with the electric motor 17, is connected to the pre-run drive 33 via a self-braking gear 34.

The vertical nelle 8 is parallel to the nanofilter 1 and has through windows 35 and 36. The window 35 with the injection duct 37 is connected to the device 38 for heating the molds 9, and the window 36 is connected with the exhaust duct 39. On the vertical panel are levers 40, on the cantilever end of each of which the device 41 is installed for the cooled forms 9.

A rotary spinner for molding plastic products works as follows.

At the beginning of the installation, the carts 2 are usually laid out so that the entrance of the heating chamber 4 to the cooling and cooling of one of them is blocked by the stationi 8 installed near panel 1, and the entrance of the camera installed on the other cart is open. The mold 9, located in the open chamber, is loaded with plastic material, carrying the drive 3 of the non-displacement trolleys 2 but the guides 1. The trolleys 2 move together along the guides 1 until the heating and cooling chamber inlets with the plastic material 9 are loaded. will be overlapped by nane 8, and the entrance of the chamber with the unloaded form 9 of the other carriage 2 will not be displaced relative to the nane 8, for example, to the left.

After the entrance of the heating chamber 4 of cooling and cooling with the loaded mold 9 is closed, the drive 3 is turned off and the carriages are stopped. Simultaneously with the disconnection of the mr of the drive 3, the device 38 is turned on to heat up the sprocket electromotor 17 of the drive sprockets and the carriage 2 with the inlet 8 blocked.

The rotation from the electric motor 17 through the planetary gear 16 and the gear pair 14, 15 is transmitted to the shaft 13 of the drive sprockets 11, which, when coupled with the roller-sleeve prices 7 of the tires 5 and 6, lies, and the heating and cooling chamber.

Through the planetary gearbox 16, the differential mechanism 25n gears 24, 23, 22, the rotation from the electric motor 17 is also transmitted to the sprocket 21, freely mounted

on the shaft 13, which, engaging with the roller-bushing chain 20 of the ring 18, rotates it on the rollers 19.

Roller sleeve 26, mounted on the inner surface of the ring 18, does not prevent

rotation of the sprocket 27 fixed with it, fixed at the end of the shaft 28. The shaft 28 rotates freely in band 6, through a conical bristle 29 and a bristle 30 nrvodvnt during rotation of the power shnindel 31. Prn

This form 9, located inside the heating chamber and cooled and connected to the Schneumen. 31, 32, and rotates around the Cn-line of the non-ordinary chromium. Rotate1P1e around horizontal1 1 1 fori Form. 9 reports Ka.Mcj: ia

and cooling and cooling.

In the rotation axis around the two axes, the form 9 is blown by a hot tenon carrier being injected into the chamber through a window 35 in panel 8

for heating.

The plastic material in the mold 9 is uniformly melted throughout its inner surface. The spent vehicle through the window 36 in the nano 8 is removed from the chamber but the exhaust duct 39. Simultaneously with the ethnm, the second form 9 located on another trolley 2 is loaded. After the material in the heated form 9 is completely melted and spreads

on its internal surface, the heating device 38 is turned off, and the drive 3 of the non-displacement of the carriages 2 along the guides 1 is turned back.

Trolleys 2 are jointly unmounted

and stop by turning off the drive 3 in the position they occupied before the installation began. In addition, the device 38 for heating the p motor 17 of the carriage 2 is turned on.

Turning the lever 40, the cooling device 41 is located opposite the entrance to the heating and cooling chamber and is turned on. The rotary mold 9 is blown with a note of air pumped into the heating chamber and cooled by the cooling device 41, and the material in it solidifies and takes on its corresponding shape. After the cooling process is completed, the motor 17 and the cooling device 41 are turned off.

When the motor 17 is turned off, the form 9 stops, and the device 41 for cooling by turning the lever 40 retracts the entrance to the chamber 4. The form 9 can stop in a horizontal position and to set it in a position convenient for the connector and unload the finished product, and also loading a new batch of material, includes a secondary drive 33, which through a self-braking reducer 34, a differential mechanism 25, gear gears 24, 23, 22, an asterisk 21, zero 20 on the outer surface of the ring 8, a chain 26 on its inner surface However, sprocket 27, shaft 28, bevel gear 29, gear 30 and drive spindle 31 rotates the shape 9 to the lower position, however, the rotation is not transmitted to the drive sprockets 11.

Stopped at the desired position, the mold 9 is opened, and the molded article is removed from the mold.

Further, the cycle of the installation is repeated.

Claims (3)

1. Installation for rotational molding of plastic products, containing molds mounted on guides with the possibility of reciprocating movement of a trolley, equipped with a planetary gear for rotating the mold around its two axes, a heating and cooling chamber and a device for heating and cooling molds characterized by By the fact that, in order to increase the production of space and reduce the occupied area, the chamber for heating and cooling is designed as a carrier of a planetary gear installed across the trolley on carriers and water bearings rolling and coaxially connected with the central wheel of the planetary gear, made in the form of a ring, kinematically connected with the inner surface with a shape that is located inside the chamber, and the outer surface with the rolling bearings. 2. Installation according to claim 1, characterized in that, in order to be able to rotate the mold to ensure ease of loading and unloading it with the hover driver, an additional drive and differential drive are included in the kinematic chain connecting the outer surface of the ring with the drive of rotation of the rolling bearings. the mechanism which drove through a self-braking transmission is connected to additional drive. 3. Installation according to claim 1, characterized in that, for ease of maintenance, the device for cooling the molds is mounted on a pivoting lever. five B3 } iS f2 / four/ (rig 2