SU937198A1 - Multicavity chamber for producing foamed polymeric material articles - Google Patents

Description

(54) MPiOrOMECTHAH CAMERA FOR PRODUCTION OF A PRODUCT FROM A PENDING POLYMER MATERIALS

one

The invention relates to the processing of foaming thermoplastic materials, for example polyethylene foam, in devices for foaming foam plastic blanks in individual molds for the manufacture of, for example, floats intended to equip fish-forming fishing gear.

The well-known multi-compartment chamber for the manufacture of products from expandable polymeric materials, the lower and upper PLATE Ja. A. Plates: bolted, between which is a set of metal frames (shapes) with foaming blanks 1.

The disadvantages of this chamber are the low quality of the products when foaming blanks in molds with a complex cavity, due to the difficulty of equal and dimensional tight reduction between rigid plates of the chamber with a large number of removable molds mounted on top of each other and possible skewing or opening when foaming blanks forms on the plane of their connector.

Closest to the proposed technical essence and the achieved result is a multi-compartment chamber for the manufacture of products from expandable polymeric materials, comprising a body made in the form of parallel base plates rigidly connected between 5 racks, placed between paragraphs and installed in parallel rows of interchangeable forms 2.

The disadvantage of this chamber is that it does not allow to obtain high-quality products while simultaneously foaming a large number of blanks in individual forms that require centering, due to the difficulty of compacting them tightly along the plane of the connector of the forms and the formation of oblo in these places, the mechanical removal of which disrupts the closed-porous structure. material and contributes to moisture saturation of products, which is unacceptable for such products as, for example, fishing floats. In addition, the camera is complex in design and therefore not reliable enough in operation.

The purpose of the invention is to increase the quality of the products obtained by increasing the accuracy of the centering of the forms. This goal is achieved by the fact that in a multitheaded chamber for manufacturing a sled) of foaming and polymer mats), there are 11 chambers, the case is extended to it (1YY in the form of pairs of allele support plates, rigidly interconnected by racks). parallel rows of interchangeable forms, each supporting n, titus is provided with fixed fixations attached to them for centered 1 (. still, and the vertical axis is installed between the iio forms), ement, and pictorialize nrisi () comp. one of the support clauses, one pol-penny, is flush, and located coaxially with them (})) kk) one niyu prisos (fucking another it is |) iyyyy 1) In the form of one movement p) one-way adoli ver; The new axis of the form is ustap () g () e; - The curvature of the wirth x smiurna n; inTi, i screws, the supply of 1 on one Koiine cBoiM with a flywheel with, and at the other end, Bbino, .HeiiH () M and a new look on (), centering about,:; ovkom. In addition to the 1st, each form is made out of the material; ; of the elements, installed (; verses of the vertical; 1n between the forms, sounding. cratiHii), each c, the form is exactly but the center in the lower, short, and upper horizontal. rdah, () unreliable 11B exact aiiOBKv nh but vertical,; d; 1filling in, fixed position () | their iiii.K poso) le11II on a; i and h, supporting 1 (}, moving it easily and nrostch) implement the 1st donor of the first compression of 1 lacquer connector of the forms located in each vertical of the first row, having uncompensated all the heights of the open forms in height for any variant of their resolution according to the series, excluding at: Making a fixture fixture in the form of screws installed in the threaded holes of the support 11lit 1 and fitted with one hand, a flywheel, m with a stonor, and on the other hand - a - one with a flat gotovnoy, allows you to create a uniform yeii; ine pre-shrink brush hands of the operator without application of stress. When heating the chamber with the shapes, mami, in which the workpieces are placed, the material of the workpieces foaming, and high pressures develop in the forms, reaching up to 8 kgf. As a consequence, pre-compression of the forms with the help of movable locking devices is not sufficient to exclude ie) eK () ca and open the forms on the plane of their) connector, in the foamed material and to reliably reduce the shape and destabilize it. The high quality of the product from all types of materials and materials is also necessary I) f) v from mat), the coefficient, the linear performance of which sharply restores the coefficient, is notorious about the distribution of the camera body material. This I) 1bore matter; Forms and chambers, the chamber allows to create the necessary closing force on the roar of the forms in the front of the belligerent to eliminate the possibility of opening the form. This is achieved because it is foaming the product; the primary dimensioning of the linear dimensions (|) of the formulas is more than that, because we create 1 d () ,. 1; force acting i (j of the axis of the form, which is sufficient (reliable). (.) h: molds of the forms, excluding their expansion and obtaining high-quality products with. 1) (1st configuration during simultaneous foaming bo; H) White to (: the quantities of 1 in 1 large individual forms. Fig. 1 shows the kama) a, section; on the fi 2 the same, top view; on. 3-H1) () e (}) ix .e 1 pic specialty. A chamber for the manufacture of products from all-numbered nolimeric materials, iHeiia in the form of a hard, stable, 1 ollas root, consisting of the corresponding) of the lower and upper hemorrhoids; 1it 1 and 2, connected with 1x. Between themselves with the pillars 3. (/ 1H) yki 3 are skreleny with 1 litas 1 and 2 at the house, and nuts 4 and it should be welded. On the Horn of the Onor Id 1, there are rigidly fixed seven locking devices 5, 5; in the form of centering patterns, intended for e; | installation of forms on them 6 with for the manufacture of 7 articles. type () n, 1 avkov. Forms 6 are made of aluminum mines and SOSTS of GG from two HO.TUFORM with and 1 LOW centro ") 8 and 9 openings. Semi (f) O) cm 1 ka1otts among themselves at each other) aziema 10. () (} Lit. 2 has holes 11, i of which) are pressed in coaxially fixing UiM 1 |) using a single method, having 5 nuts 2 with moving 1 and 1) in them in the vertical n. space (}) ixing with chimi fig. 1, made in the form of screws 13, i.u..1.ih on the end is rigidly. At the end of the screw 13, which has a ball 15 with a help of the shnlints 16, there are fixed tamper heads 17 with the possibility of small angular re-alignments to facilitate the centering of the forms 6, On the fire plate 14 and the on-plate 2, holes 18 and 19 for stonor 20,

designed for stonori flywheel 14 in a certain position. The number of holes 18 and 19 is selected from the condition of sufficient compression of the mold 6 with the aid of, fixing devices 5 and pentrovochnyh heads 17 and fixing the latter with the help of the stopper 20.

The centering holes 8 and 9 of the mold 6 are made with a small gap to enter the fixing elements 5 and (or) the centering heads 17, and (or) the fixing elements 21. The embedded elements 21 are made in the form of metal bushings.

In order to provide better heat transfer and passage of a heated medium (hot water) through the central axial hole 22 of the molds 6, the centering heads 17 are provided with holes 23.

For transporting the camera, the support plate 2 is provided with lugs 24.

The work of the camera is carried out in a meditative manner.

In one of the halves of the mold 6, a blank 7 of the product is placed and covered with the second half-mold of the mold 6. The seven pieces of mold 6 assembled in this way with the blanks 7 are mounted on fixing devices on the burner plate 1 so that the fixing device 5 coincides with the lower centering hole. 9 forms A. After installation on the base plate 1 of the lower horizontal row of forms b, the fixing elements 21 are installed in their upper centering holes 8.

Mortgage elements 21 install the second horizontal row of forms 6, so that the mortgage elements 21 are waxed into the lower centering holes 9 of form 6. Similarly, the upper centering holes 8 of the second row of forms 6 are fixed to the mortgage elements 21 and placed third horizontal row of forms 6.

Next, using the flywheels 14, the screws 13 are rotated before the centering heads 17 are installed in the upper centering holes 8 of the third upper horizontal row of forms 6. Operator's hands applied on the flywheel 14 are pressed each vertical row of forms 6 up to the centering heads 17 in the upper centering holes 8. This position is fixed by means of a stopper 20, which is inserted into one of the holes 18 of the flywheel 14, which coincides with the hole 19 of the support plate 2. Assembled in such a way, the camera for the lugs 24 of the lines and the electric hoist (not shown n) it is transported to a heating device, such as an autoclave, of low pressure (not shown). After the chamber is installed in the autoclave, filled with water and sealed, steam is supplied to the autoclave and the chamber with the preforms 7 in the mold 6 is heated.

water up to 105 ° C (pressure 1.27 kgc / cm) aluminum molds 6 are approximately 2 times larger than the steel casing of the chamber (linear expansion coefficient: for aluminum 22-10®, for steel 11.5 - HMD A) A rigid camera body as a result of different temperature lengthening of the mold 6 and the camera body during the foaming period along the axis of the mold 6, considerable additional forces arise (up to 8 kgf), sufficient for the final reduction

0 and sealing of the planes of the connectors 10 of the forms 6, which ensures high-quality, layer-free products.

After the completion of the technological exposure, the chamber with forms 6 is cooled in an autoclave with cold water. Chilled chamber

5 for pieces 24 is removed from the autoclave and the electric hoist is transported to the place of disassembly. The camera is disassembled in the following sequence.

Recover the stopper 20 and hand force

0 the actuator (the force pulling the molds disappears when the chamber is cooled) rotates the flywheels 14 so that the screws 13 move in the nuts 12 to the extreme upper position and the centering heads 17 come out of the centering holes 8 of the upper horizontal row of shapes 6. Then remove forms 6 of the upper row, remove mortgages 21 from the forms 6 of the next Hiero, remove the second row of forms 6, remove the mortgages

0, elements 21 from molds 6 of the first row and remove the first row of molds 6 from the fixing devices 5. After disassembling the molds 6, removing the finished products from them and cleaning the molds 6 is repeated.

5The invention allows to significantly simplify and accelerate the process of foaming products in forms with axial holes and a complex configuration. Using the camera eliminates the possibility of disclosure.

d forms in the foaming process and thereby guarantees high quality of the foamed products.

In addition, the proposed camera is easy to manufacture and maintain and meets safety requirements.

Claims (1)

1. Multiple chamber for the manufacture of products from expandable polymer materials, comprising a body made in the form of parallel base plates, rigidly interconnected by racks, placed between the plates and mounted in parallel rows of changeable forms, characterized in that improving the quality of the products obtained by increasing the accuracy of the centering of the molds; each support plate is provided with fixed KI h;:; (cc ;; h:; G :, l.;: iHiiii; | .i; p a. f (); ) Mami; p - ..i ii-; ; I: ili () H.niibi a: i: P, ipr-irXi l) ii Klil pVIOIiliU OTHER:;: L, i:) i; i i :); -iX il.lnr iK.iM, ii; M: i p :: i; ii); o / KO i; ibu: f; 1K1 ii i: o :: uio; RPS; |;) |; Olg; And li-: iiTi, i (1Л ilerii); and ii; L1 L, iUj biiijii ogi (boivi; H- noii-, ix shnrsstyich,. I-iian / Keiii: i, i lia oliom lah () T (; i; T () ii)) (i. A lia iMilL ; ir ;:: () AND IPLS iiiapOiU. nK;:. 4iv (iH. ::. KfiMi.); IK) ii. I, otlicha1 1Tsi s} 1 They, k; | zl; the form is made of material, vioiv / nuio K (i (j) {j) ii uieHT linear.go), 111Н1П1ак) К () g) ({) function .1IN (ИИИИО 11-: || I) sleep to ( And) Kame) 1.1. i. bpaui iXiiH K. A and lr. 11srerab (; tka; Ch1ch | ..ih Maci li. M .-, .., “Himnn iMlii,:,. 2Я9 300 R, L VGOGG h; k; C AND AND bCiBO (XXL, V. Pi). Iu . And 29 I) 27.00, 19Н5 (liiHrroTMnj