SU729060A2

SU729060A2 - Apparatus for forming cocrete mixture articles

Info

Publication number: SU729060A2
Application number: SU782630142A
Authority: SU
Inventors: Василий Иванович Гуйтур
Original assignee: Одесский Инженерно-Строительный Институт
Priority date: 1978-06-19
Filing date: 1978-06-19
Publication date: 1980-04-25

Description

Изобретение относится к устройствам для формования изделий из бетонных смесей, применяемых в промышленности строительных материалов. ,The invention relates to devices for forming articles of concrete mixtures used in the construction materials industry. ,

Из основного авт. св. № 365255 известно устройство для формования изделий из бетонных смесей, содержащее виброплощадку с установленной на ней формой и вакуумной камерой, в верхней, части которой закреплен приводной ¹штамп [1].From the main author. St. No. 365255, a device is known for molding products from concrete mixtures, containing a vibratory plate with a mold installed on it and a vacuum chamber, in the upper part of which a drive stamp ¹ is fixed [1].

Недостатком, известного устройства является невозможность полной дегазации бетонной смеси.A disadvantage of the known device is the inability to completely degass the concrete mixture.

Целью изобретения является интен- 1 сификация процесса дегазации бетонной смеси.The aim of the invention is the intensification of the process of degassing of concrete mixture.

Это достигается тем, что предлагаемое устройство снабжено установленным на форме вибронасадком с внут-2 ренней перфорированной стенкой.This is achieved by the fact that the proposed device is equipped with a vibration-mounted nozzle with an internal perforated wall.

На чертеже показано устройство, поперечный разрез.The drawing shows a device, a cross section.

Устройство состоит из виброплощадки 1, на которую устанавливают * форму 2, находящуюся в вакуумной камере 3 с подвижной крышкой 4 и штампом 5 с пневмоприводом его вертикального перемещения, который состоит из покрышки 6 с резиновой камерой 7, 3 опертой на выступ 8 стенки вакуумной камеры 3. На внутренний обод 9 покрышки опирается металлическое кольцо 10 крышки 4. В вакуумную камеру вмонтированы штуцер 11, присоединенный к вакуумному насосу. Резиновая камера 7 через штуцер 12 соединена с компрессором. На форму устанавливают вибронасадок 13, представляющий собой сварную конструкцию в виде бункера с наружной стенкой 14 и внутренней перфорированной стенкой 15.The device consists of a vibrating plate 1, on which * a mold 2 is mounted, located in a vacuum chamber 3 with a movable cover 4 and a stamp 5 with a pneumatic actuator for its vertical movement, which consists of a tire 6 with a rubber chamber 7, 3 supported on a protrusion 8 of the wall of the vacuum chamber 3 The metal ring 10 of the cover 4 rests on the inner rim 9 of the tire 4. A fitting 11 connected to the vacuum pump is mounted in the vacuum chamber. The rubber chamber 7 through the fitting 12 is connected to the compressor. A vibration nozzle 13 is installed on the mold, which is a welded structure in the form of a hopper with an outer wall 14 and an inner perforated wall 15.

Устройство работает следующим образом.The device operates as follows.

На форму 2 устанавливают вибронасадок 13. После герметизации камеры производится вакуумирование смеси. Далее, в процессе вибрирования, бетонная смесь просыпается через отверстие внутренней стенки 15 вибронасадка в форму и дополнительно дегазируется, освобождаясь от защемленного воздуха между твердыми частицами. Плотность бетонной массы увеличивается, что позволяет.повысить прочность бетона.The vibration nozzle 13 is mounted on form 2. After sealing the chamber, the mixture is evacuated. Further, in the process of vibrating, the concrete mixture wakes up through the hole of the inner wall 15 of the vibrating nozzle into the mold and is additionally degassed, freeing from trapped air between the solid particles. The density of the concrete mass increases, which allows to increase the strength of concrete.

Claims

(54) DEVICE FOR FORMING PRODUCTS OF CONCRETE MIXTURES The invention relates to devices for molding concrete products used in the building materials industry. From the main auth. St. 365255, a device for molding articles from concrete mixtures is known, which contains a vibroplate with a mold installed on it and a vacuum chamber, in the upper part of which a drive piece is attached. A disadvantage of the known device is the impossibility of complete degassing of the concrete mix. The aim of the invention is to intensify the degassing process of the concrete mix. This is achieved by the fact that the proposed device is equipped with a vibrating head mounted on a form with an internal perforated wall. The drawing shows the device, the cross-section. The device consists of a vibrating plate 1, on which you install a form 2 located in a vacuum chamber 3 with a movable cover 4 and a punch 5 with a pneumatic actuator for its vertical movement, which consists of a cover 6 with a rubber chamber 7 supported on the ledge 8 of the wall of the vacuum chamber 3 The metal ring 10 of the cap 4 is supported on the inner rim 9 of the tire. A fitting 11 connected to the vacuum pump is mounted in the vacuum chamber. The rubber chamber 7 through the nozzle 12 is connected to the compressor. The form is installed from the vibrating nozzles 13, which is a welded structure in the form of a bunker with an outer wall 14 and an internal perforated wall 15. The device operates as follows. A vibrating nozzle 13 is installed on the form 2. After sealing the chamber, the mixture is evacuated. Further, in the process of vibrating, the concrete mixture spills through the opening of the inner wall 15 of the vibro-mass into the mold and is further degassed, freeing from trapped air between the solid particles. The density of the concrete mass increases, which allows to increase the strength of concrete. Apparatus of the invention for the molding of concrete products according to the author .365255, characterized in that

the purpose of intensifying the process of degassing the concrete mixture, the device is equipped with a vibration mounted on the mold with an internal perforated wall.

Sources of information taken into account in the examination

1, USSR Author's Certificate 365255, class, B 28 B 1/10, 1970.