CN2806114Y

CN2806114Y - Improved filtering head of waste plastic extruding machine

Info

Publication number: CN2806114Y
Application number: CNU2005201116745U
Authority: CN
Inventors: 孟庆平; 吕礼少
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-05
Filing date: 2005-07-05
Publication date: 2006-08-16
Anticipated expiration: 2015-07-05

Abstract

The utility model discloses an improved filtering head of a waste plastic extruding machine, which comprises a fixing splint fixedly installed on one end of a material conveying barrel of the plastic extruding machine. The outer side of the fixing splint is cooperatively provided with a moving splint provided with a plastic outlet hole. A perforated plate and a filter screen are respectively arranged between the moving splint and the fixing splint. Peripheral edges of the moving splint and the fixing splint are cooperatively sheathed with a clamping ring which is composed of an upper half-round clamping ring and a lower half-round clamping ring. One end of the upper half-round clamping ring and one end of the lower half-round clamping ring are mutually hinged, and the other ends are connected together via a moving fastener. The utility model is time-saving, labor-saving, safe and speedy during the replacement of the filter screen, and has slight changes on the structure of the filtering head. The utility model has the advantages of small volume, easy manufacture and low manufacture cost.

Description

Improved waste or used plastics extruder filters head

Technical field

The utility model belongs to the improvement of waste or used plastics cross-head structure, and particularly improved waste or used plastics extruder filters head.

Background technology

On the plastic extruder that uses the filtration head is housed all at present, waste or used plastics is entered by barrel and is extruded after the strainer filtering that filters in the head in the head after filtration falls wherein impurity, the screen pack that uses is installed in and can forms between two block plates or iron plate that are sealed and matched, and by bolt, nut two boards is clamped together.Working time has been grown, because plastic material vulnerable to pollution and sneak into impurity, the screen pack in the head is stopped up by impurity easily, lose filtering function, therefore need draping continually, nut, bolt will be unclamped during draping, draping operation is wasted time and energy, serious reduction operating efficiency.Notification number is that the Chinese utility model patent specification of CN2400263Y discloses a kind of net-changing device fast and safely, this net-changing device is the holder web plate of cone-shaped and matches with bellmouth on the base, the holder web plate is provided with screen pack, leading screw and handwheel vertically are installed on base, and the leading screw lower end is fixed together with the holder web plate.Rotating handwheel with hand during use makes leading screw drive the replaceable screen pack of holder web plate rise.It is bulky though this net-changing device fast and safely can be changed screen pack easily, and is too big to the structural modification of filtering head, has increased manufacturing cost.

The utility model content

The purpose of this utility model is to provide a kind of improved waste or used plastics extruder to filter head, and is time saving and energy saving when not only changing screen pack, safe and efficient, and very little to the structural modification of filtering head, and its volume is little, is easy to make, and is cheap for manufacturing cost.

The purpose of this utility model is achieved in that a kind of improved waste or used plastics extruder filters head, comprise the clamping plate of deciding that are packed in plastic extruder feeding tube one end, decide the cooperation of the clamping plate outside the moving clamping plate that are provided with out plastic eyelet are installed, move, decide be provided with respectively between the clamping plate porous plate and filter screen, cooperate suit snap ring on moving, as the to decide clamping plate outer peripheral edges, snap ring is made up of upper and lower half-round clamping ring, and an end of two semicircle snap rings is hinged together and the other end links by active card and is connected together.

When moving, decide filter screen between the clamping plate and blocked by impurity after, the active card that will be installed in the upper and lower half-round clamping ring other end is cramped out earlier, two semicircle snap rings that can an end is hinged separately, taking out moving clamping plate and porous plate is replaceable filter screen, and screen replacing finishes and repeats above-mentioned action again and will filter head and install.The utility model has changed and filters head in the past and will move, decide the structure that clamping plate are fixedly installed togather by several uniform bolts, time saving and energy saving when not only changing screen pack, safe and efficient, and very little to the structural modification of filtering head, just load onto a snap ring and get final product at the outside of original filtration head cover.Because the thickness of snap ring is little, thereby the utility model volume is little, be easy to make, cheap for manufacturing cost.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the main TV structure schematic diagram of the utility model embodiment 1;

Fig. 2 is the A-A sectional structure schematic diagram among Fig. 1;

Fig. 3 is the main TV structure schematic diagram of the utility model embodiment 2;

Fig. 4 is the B-B sectional structure schematic diagram among Fig. 3;

Fig. 5 is the side-looking structural representation of the utility model embodiment 2;

Fig. 6 is the side-looking cross-sectional view of the utility model embodiment 3.

The specific embodiment

A kind of improved waste or used plastics extruder filters head, as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, comprise be packed in plastic extruder feeding tube 8 one ends decide clamping plate 7, decide the cooperation of clamping plate 7 outsides moving clamping plate 2 that are provided with out plastic eyelet are installed, move, decide be provided with respectively between the

clamping plate

2,7 porous plate 5 and filter screen 6, cooperate suit snap ring on moving, as to decide

clamping plate

2,7 outer peripheral edges, snap ring is made up of upper and lower half-

round clamping ring

1,4, and an end of two

semicircle snap rings

1,4 is hinged together and the other end links together by movable buckle 3.As Fig. 1, Fig. 3, shown in Figure 5, movable buckle 3 is made up of the button nose and the Button Block that are installed in respectively on the upper and lower half-

round clamping ring

1,4, has a horizontally disposed U-shaped bayonet socket on the button nose, articulated one bolt that has a nut on the Button Block, bolt matches with the U-shaped opening of buckleing nose, and the nut on this bolt is CONTACT WITH FRICTION with the end face of buckleing nose.Movable buckle 3 can also adopt this form, i.e. articulated Rotary hanging hook on Button Block, and the button nose is the outstanding boss of level, the free end of hook hangs on the button nose boss and gets final product.Movable buckle 3 can also adopt other suchlike version.As Fig. 2, Fig. 4, shown in Figure 6, on the inner peripheral of snap ring groove is being set, the cross section of groove is rectangular or trapezoidal, and is moving, decide the outer peripheral edges shape of

clamping plate

2,7 and the shape of described groove is complementary.As Fig. 1, shown in Figure 3, on upper and lower half-

round clamping ring

1,4 contacted each other two radial end faces groove and the protruding tooth that cooperatively interacts is being set respectively, the shape of groove and protruding tooth is triangle or trapezoidal.The contact end face that adopts this form prevents that in order to improve sealing effectiveness plastics are from wherein being extruded.

Claims

1, a kind of improved waste or used plastics extruder filters head, comprise be packed in plastic extruder feeding tube (8) one ends decide clamping plate (7), decide the cooperation of clamping plate (7) outside the moving clamping plate (2) that are provided with out plastic eyelet are installed, moving, decide clamping plate (2, porous plate (5) and filter screen (6) are being set respectively 7), it is characterized in that: moving, decide clamping plate (2,7) cooperate suit snap ring on the outer peripheral edges, snap ring is by last, lower half circle snap ring (1,4) form two semicircle snap rings (1,4) a end is hinged together and the other end links together by movable buckle (3).

2, improved waste or used plastics extruder according to claim 1 filters head, it is characterized in that: on the inner peripheral of snap ring groove is being set, the cross section of groove is rectangular or trapezoidal, and is moving, decide the outer peripheral edges shape of clamping plate (2,7) and the shape of described groove is complementary.

3, improved waste or used plastics extruder according to claim 1 filters head, it is characterized in that: on contacted each other two radial end faces of upper and lower half-round clamping ring (1,4) groove and the protruding tooth that cooperatively interacts is being set respectively, the shape of groove and protruding tooth is triangle or trapezoidal.