CN100391719C

CN100391719C - Index plate tensing mechanism for plastic injection molding machine

Info

Publication number: CN100391719C
Application number: CNB2004100540877A
Authority: CN
Inventors: 金凯南
Original assignee: 董祖国
Current assignee: Zhejiang Keli Plastic Machinery Co., Ltd.
Priority date: 2004-08-24
Filing date: 2004-08-24
Publication date: 2008-06-04
Anticipated expiration: 2024-08-24
Also published as: CN1739941A

Abstract

The present invention relates to a dividing disc expanding mechanism of a plastic injecting and blowing molding machine, which comprises a dividing disc body. Three equant dividing grooves are arranged on the periphery of the dividing disc body. An expanding mechanism which is arranged in the dividing disc body is fixed with a main shaft, wherein the expanding mechanism is an inner expanding ring which is matched with the outer wall of the main shaft and an outer expanding ring which is matched with an inner hole of the dividing disc body. The inner expanding ring is provided with an expanding groove, and the outer expanding ring is also provided with an expanding groove. An upper clamping block and a lower clamping block are arranged between the inner expanding ring and the outer expanding ring, and the upper clamping block and the lower clamping block are fixed by fixing screws. The outer walls of both ends of the inner expanding ring are both made into conical bodies, and both ends of the inner hole of the outer expanding ring are made into an inner conical hole and a middle round hole respectively. The inner wall and the outer wall of the upper clamping block and the lower clamping block are provided with conical surfaces. When the present invention is installed, adjusted and maintained, the position adjustment for the main shaft can be carried out as long as the fixing screws of the upper clamping block and the lower clamping block are adjusted, which is laborsaving and convenient.

Description

Plastic injecting and blowing make-up machine index dial tension mechanism

Technical field

The present invention relates to the equipment of processing plastic hollow container, particularly relate to the tension mechanism of one-step method full-automatic plastic injection blow blow moulding machine index dial, belong to the plastics machinery field.

Background technology

(mainly refer to PE with plastics; PP; PC) be raw material; blow through notes and to be processed into hollow container (plastic bottle); as medicine bottle; bottle for cosmetics and food-bottle etc.; can use the full-automatic plastic injection blow blow moulding machine; this machine has injection moulding and blowing two large divisions; and annotate; the blowing mould tool is installed on the same workbench; be divided into injection moulding; three stations of the blowing and the demoulding, three stations rely on a capstan head to drive workpiece, and capstan head is triangular in shape; plug is installed on each limit of triangle capstan head respectively; plug cooperates with injection mold makes plastics be injected into bottle base, and bottle base is taken in the blow mold cavity, again the blow molding bottle is taken to mould emptier; therefore capstan head is each rotates 120 °, and it is very accurate to require.And capstan head connects main shaft top, and index dial is installed in the main shaft bottom, and index dial is driven by toggle mechanism.The index dial that is installed in the main shaft bottom not only the accuracy of manufacture require high, and install, debugging wants accurately.Strong groove location is adopted in existing index dial and the fastening installation of main shaft application, and operation such as installation, maintenance is trouble, time-consuming very, and error is big.

Summary of the invention

The purpose of this invention is to provide a kind of symmetry and clamp, accurate positioning is regulated easily, and installation, maintenance is one-step method full-automatic plastic injection blow blow moulding machine index dial tension mechanism easily.

The technical scheme of plastic injecting and blowing make-up machine index dial tension mechanism of the present invention is: an index dial disk body is arranged, the periphery of disk body is shaped on three indexing troughs of five equilibrium, indexing trough matches with the toggle mechanism of rotation, tension mechanism is installed in the disk body, tension mechanism and main shaft fix, it is characterized in that described tension mechanism is internal expanding collar that matches with spindle outer wall and the outer tensioner circle that matches with the disk body endoporus, the internal expanding collar has the tensioner groove, outer tensioner circle has the tensioner groove, interior, install clamp and following clamp between the outer tensioner circle, on, following clamp is fixed by trip bolt, outer wall is made bullet at two of internal expanding collar, make internal taper hole and middle part circular hole in two of outer tensioner circle, on, in the following clamp, outer wall is made taper surface.The location pressure ring is arranged in its disk body, and pressure ring contacts with inside and outside tensioner circle and following clamp.

Plastic injecting and blowing make-up machine index dial tension mechanism of the present invention, because tension mechanism relies on the thrust of upper and lower clamp to inside and outside tensioner circle, the endoporus of internal expanding collar is compressed main shaft, compress in the outer wall of outer tensioner circle and the disk body, when installing, debugging and keeping in repair, need only the trip bolt of regulating upper and lower clamp, just can do the position adjustment with main shaft, rapid operation, convenience.The pyramidal structure of inside and outside tensioner circle and upper and lower clamp makes expanding force bigger.And the location pressure ring is arranged in disk body, make inside and outside tensioner delineation position accurately.

Description of drawings

Fig. 1 is a plastic injecting and blowing make-up machine index dial tension mechanism schematic diagram of the present invention;

Fig. 2 is the index plate housing schematic top plan view;

Fig. 3 is that the A-A of Fig. 4 upper clamping block is to schematic cross-section;

Fig. 4 is the upper clamping block schematic top plan view;

Fig. 5 is following clamp cross-sectional schematic;

Fig. 6 is outer tensioner circle cross-sectional schematic;

Fig. 7 is outer tensioner circle schematic top plan view;

Fig. 8 is an internal expanding collar cross-sectional schematic;

Fig. 9 is an internal expanding collar schematic top plan view.

The specific embodiment

The invention discloses a kind of index dial of one-step method full-automatic plastic injection blow blow moulding machine, the tension mechanism that particularly relates to index dial, an index dial disk body 1 is arranged, the periphery of disk body is shaped on three indexing troughs 11 of five equilibrium, as shown in Figure 1 and Figure 2, alternate 120 ° of the center line of each indexing trough, indexing trough matches with the toggle mechanism that rotatablely moves, and toggle mechanism drives 120 ° of the each rotations of index dial.Tension mechanism is installed in the disk body, tension mechanism and main shaft 7 fix, as shown in Figure 1, its described tension mechanism is internal expanding collar 8 that matches with main shaft 7 outer walls and the outer tensioner circle 5 that matches with disk body 1 endoporus, internal expanding collar 8 has tensioner groove 82, as shown in Figure 9, outer tensioner circle 5 has tensioner groove 53, as shown in Figure 7, the tensioner groove is beneficial to and shrinks or expansion, interior, install clamp 4 and following clamp 3 between the outer tensioner circle, on, following clamp is fixed by trip bolt 2, and outer wall is made bullet 81 at two of internal expanding collar 8, as shown in Figure 8, make internal taper hole 52 and middle part circular hole 51 in two of outer tensioner circle 5, as shown in Figure 6, on, in the following clamp, outer wall is made

taper surface

42,44,33,31, as Fig. 1, Fig. 3, Fig. 4 and shown in Figure 5, on, each taper surface 42 of following clamp, 44,33,31 with corresponding in, the bullet 81 and the internal taper hole 52 of outer tensioner circle match, so regulate trip bolt 2 fixedly the time, make, following clamp clamps and gets final product.Upper clamping block 4 is made through hole 43, passes for screw 2, and following clamp 3 is made screw 32, and is fixing for screw 2.In order to help the tension mechanism location, location pressure ring 6 is arranged in its disk body 1, pressure ring contacts with the end face and the following clamp 3 of inside and outside tensioner circle 8,5.Screw 41 is arranged in upper clamping block 4, in disk body 1, be shaped on screw 12.

Indexing trough matches with the toggle mechanism that rotatablely moves, and toggle mechanism drives 120 ° of the each rotations of index dial.Tension mechanism is installed in the disk body, tension mechanism and main shaft 7 fix, as shown in Figure 1, its described tension mechanism is the internal expanding collar 8 that matches with main shaft 7 outer walls, with the outer tensioner circle 5 that matches with disk body 1 endoporus, internal expanding collar 8 has tensioner groove 82, as shown in Figure 9, outer tensioner circle 5 has tensioner groove 53, as shown in Figure 7, the tensioner groove is beneficial to and shrinks or expansion, interior, install clamp 4 and following clamp 3 between the outer tensioner circle, on, following clamp is fixed by trip bolt 2, outer wall is made bullet 81 at two of internal expanding collar 8, and as shown in Figure 8, internal taper hole 52 and middle part circular hole 51 are made in endoporus two of outer tensioner circle 5, as shown in Figure 6, on, in the following clamp, outer wall is shaped on

taper surface

42,44,33,31, as Fig. 1, Fig. 3, Fig. 4 and shown in Figure 5, on, each taper surface 42 of following clamp, 44,33,31 with corresponding in, the bullet 81 and the internal taper hole 52 of outer tensioner circle match, so regulate trip bolt 2 in the time of fixedly, make, following clamp clamps and gets final product.Upper clamping block 4 is made through hole 43, passes for screw 2, and following clamp 3 is made screw 32, and is fixing for screw 2.In order to help the tension mechanism location, location pressure ring 6 is arranged in its disk body 1, pressure ring contacts with the end face and the following clamp 3 of inside and outside tensioner circle 8,5.Screw 41 is arranged in upper clamping block 4, in disk body 1, be shaped on screw 12.

Claims

1. plastic injecting and blowing make-up machine index dial tension mechanism, an index dial disk body (1) is arranged, the periphery of disk body is shaped on three indexing troughs (11) of five equilibrium, indexing trough matches with the toggle mechanism of rotation, tension mechanism is installed in the disk body, tension mechanism and main shaft (7) fix, it is characterized in that described tension mechanism is internal expanding collar (8) that matches with main shaft (7) outer wall and the outer tensioner circle (5) that matches with disk body (1) endoporus, internal expanding collar (8) has tensioner groove (82), outer tensioner circle (5) has tensioner groove (53), interior, install clamp (4) and following clamp (3) between the outer tensioner circle, on, following clamp is fixed by trip bolt (2), make bullet (81) at two outer wall of internal expanding collar (8), make internal taper hole (52) and middle part circular hole (51) in two of outer tensioner circle (5), on, in the following clamp, outer wall is made taper surface (42,44,33,31).

2. plastic injecting and blowing make-up machine index dial tension mechanism as claimed in claim 1 is characterized in that having in the disk body location pressure ring (6), and pressure ring contacts with inside and outside tensioner circle and following clamp.