CN111098481A

CN111098481A - Jacking device for flanging of tetrafluoro pipe

Info

Publication number: CN111098481A
Application number: CN201811270571.1A
Authority: CN
Inventors: 薛家伟; 谭银昌; 王东海
Original assignee: Hubei Shiji Weiye Anti Corrosion Technology Co ltd
Current assignee: Hubei Shiji Weiye Anti Corrosion Technology Co ltd
Priority date: 2018-10-29
Filing date: 2018-10-29
Publication date: 2020-05-05

Abstract

A jacking device for flanging a tetrafluoro pipe comprises a limiting base plate, wherein a supporting rod is arranged in the limiting base plate, a plurality of fixed disks are arranged on the supporting rod along the length direction, each fixed disk is hinged with a crank, the other end of each crank is hinged with an arc-shaped plate, and the supporting rod, the cranks and the arc-shaped plates form a parallelogram connecting rod mechanism; a pull rod is hinged to the crank close to one side of the limiting base plate, the other end of the pull rod is hinged to a movable plate, and the movable plate is sleeved on the supporting rod in a sliding mode and is adjusted and locked through a limiting mechanism. The jacking device for flanging the tetrafluoride pipe provided by the invention can improve the working efficiency.

Description

Jacking device for flanging of tetrafluoro pipe

Technical Field

The invention relates to a processing device of a tetrafluoride pipe, in particular to a jacking device for flanging the tetrafluoride pipe.

Background

The steel lining tetrafluoride pipe is an essential important part in chemical corrosion prevention, and the consumption is large. The flanging of the sealing surface in the manufacturing process is a key process, and the method adopted by the prior art is that a flanging die is heated to a certain temperature, then the die is pressed on a plastic pipe to be heated and softened and then extend, and then a shaping die is used for compressing, cooling and shaping. In the softening and shaping process, the other end of the steel lining tetrafluoride pipe needs to be tightly jacked through a jacking device, so that the displacement is avoided. The existing jacking device is generally a steel cylinder, a limiting plate is welded at one end of the steel cylinder, the tetrafluoro pipe is inserted into the steel cylinder, then the steel cylinder is fixed on a support, so that the end of the tetrafluoro pipe can be limited, and axial movement is avoided.

However, because the diameters of the tetrafluoride pipes are different, the diameter range of the common tetrafluoride pipe is between 10cm and 6m, and the adopted steel cylinder can only limit the tetrafluoride pipes with the same specification.

Disclosure of Invention

The invention aims to provide a jacking device for flanging a tetrafluoride pipe, which can axially limit the tetrafluoride pipes with different specifications and provide tail support for flanging different tetrafluoride pipes.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a jacking device for flanging a tetrafluoro pipe comprises a limiting base plate, wherein a supporting rod is arranged in the limiting base plate, a plurality of fixed disks are arranged on the supporting rod along the length direction, each fixed disk is hinged with a crank, the other end of each crank is hinged with an arc-shaped plate, and the supporting rod, the cranks and the arc-shaped plates form a parallelogram connecting rod mechanism; a pull rod is hinged to the crank close to one side of the limiting base plate, the other end of the pull rod is hinged to a movable plate, and the movable plate is sleeved on the supporting rod in a sliding mode and is adjusted and locked through a limiting mechanism.

The front end of the supporting rod is in threaded connection with a stepped shaft, the stepped shaft is formed by stacking a plurality of barrels with different diameters, and the barrels are reduced towards the direction away from the limiting base plate

The limiting mechanism comprises a limiting plate arranged on the supporting rod, a spring is sleeved on the supporting rod between the limiting plate and the movable plate, a nut is connected to the supporting rod on the other side of the movable plate in a threaded mode, and the nut and the spring act together to limit the movable plate.

The movable disc is provided with a bulge which is arranged in the waist-shaped groove of the supporting rod in a sliding manner.

The invention relates to a jacking device for flanging a tetrafluoride pipe, which has the following technical effects:

1) through setting up spacing chassis and adjustable arc, can realize like this that the tetrafluoro pipe to different specifications carries out the end spacing and lateral wall top tightly, and guarantees the axis coincidence of the axis of tetrafluoro pipe and bracing piece, only needs to guarantee the axis coincidence of the axis of toper heating flanging mechanism, stock mould and bracing piece, accurate location when can guaranteeing the turn-ups is favorable to the quick operation in later stage.

2) The stepped shaft is arranged and matched with the diameter-variable adjusting mechanism, the application range is expanded, and the purpose of axial limiting and circumferential jacking positioning of the various types of the tetrafluoride pipes can be achieved.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic view of the present invention (first type) fitted with a tetrafluoride tube.

Fig. 2 is an enlarged schematic view of a point a in fig. 1.

Fig. 3 is a schematic structural view of an arc plate in the present invention.

FIG. 4 is a schematic view of the present invention with a tetrafluoride tube (second type).

Fig. 5 is a schematic structural view of the limiting chassis of the present invention.

FIG. 6 is a schematic view of the operation of the present invention in the process of making flange hot melt.

In the figure: spacing chassis 1, bracing piece 2, fixed disk 3, crank 4, arc 5, pull rod 6, activity dish 7, stop gear 8, step shaft 9, limiting plate 10, spring 11, nut 12, waist type groove 13, tetrafluoro pipe 14, bracket 15, toper heating flanging mechanism 16.

Detailed Description

As shown in figure 1, the jacking device for flanging the tetrafluoride pipe comprises a limiting base plate 1, wherein the limiting base plate 1 is in a cup cover shape and is composed of annular solid side plates and a bottom plate (formed by welding a plurality of steel bars). The inner diameter of the limiting base plate 1 is larger than the diameter of the largest tetrafluoro pipe. The central position of the limiting chassis 1 is provided with a support rod 2, and the support rod 2 is provided with a thread section. The fixing discs 3 penetrate through the supporting rods 2 and are fixed through nuts. The number and the interval of the fixed disks 3 are determined according to the length of the tetrafluoride pipe. Set up three fixed disk 3 in the middle of this embodiment, set up a plurality of otic placodes in every fixed disk 3 upper circumference, articulate crank 4 and otic placode through the round pin axle, and the crank 4 other end then articulates with arc 5. Here an arc 5 with three cranks 4 and support bars 2 may form a parallelogram linkage. When one crank 4 rotates, the other cranks 4 are linked and drive the arc plates 5 to move outwards or inwards. A plurality of arc plates 5 arranged in the circumferential direction can be attached to and tightly propped against the inner wall of the tetrafluoride pipe after being translated to a proper position. In order to adjust the parallelogram link mechanism, a pull rod 6 is hinged on the crank 4 close to one side of the limiting chassis 1, and the other end of the pull rod 6 is hinged with a movable disc 7. The movable disc 7 is freely sleeved on the support rod 2 and arranged at one side of the movable disc 7

Be equipped with on the bracing piece 2 of a plurality of fixed disks 3 along length direction and be fixed with limiting plate 10 on the bracing piece 2, the cover has spring 11 (adopts the great compression spring of elasticity) on the bracing piece 2 between limiting plate 10 and the activity dish 7, and spring 11 can carry out spacing with the ejecting certain distance of activity dish 7, then through the nut on the bracing piece 2. When the outer diameter of the cylinder formed by the arc plates 5 needs to be enlarged, the movable disc 7 can be pushed rightwards to reach a proper position and then the nut 12 is locked, and vice versa.

In addition, a bulge is arranged on the movable plate 7 and is arranged in the waist-shaped groove 13 of the support rod 2 in a sliding manner. By this construction it is possible to define the left and right extreme positions of movement of the movable disc 7.

In addition, bracing piece 2 front end threaded connection has step shaft 9, and step shaft 9 is formed by the stack of the barrel of a plurality of different diameters, and the barrel reduces to keeping away from between the spacing chassis 1 direction. Aiming at the condition that the size of the tetrafluoro pipe is small, the stepped shaft 9 is additionally arranged, the waistcoat of the stepped shaft 9 can be used as a limiting end face, different cylinders on the stepped shaft 9 can be sleeved with the tetrafluoro pipes with different sizes, and therefore the jacking of the tetrafluoro pipe with a small size can be met.

As shown in figure 6, install the tail end of tetrafluoro pipe on this application, pass the through-hole (the through-hole internal diameter is the same with the tetrafluoro pipe external diameter) on bracket 15 (fixed mounting) with the head of tetrafluoro pipe, the cylinder drives toper heating design head and stretches into the suitable position of tetrafluoro pipe and can be with certain length hot melt of tetrafluoro pipe end and form the toper structure, makes things convenient for later stage mould pressing turn-ups.

Claims

1. The utility model provides a tight device in top for tetrafluoro pipe turn-ups which characterized in that: the limiting mechanism comprises a limiting chassis (1), wherein a supporting rod (2) is arranged in the limiting chassis (1), a plurality of fixed disks (3) are arranged on the supporting rod (2) along the length direction, a crank (4) is hinged to each fixed disk (3), the other end of each crank (4) is hinged to an arc-shaped plate (5), and the supporting rod (2), the cranks (4) and the arc-shaped plates (5) form a parallelogram link mechanism; a pull rod (6) is hinged to the crank (4) close to one side of the limiting base plate (1), the other end of the pull rod (6) is hinged to the movable plate (7), and the movable plate (7) is sleeved on the supporting rod (2) in a sliding mode and is adjusted and locked through a limiting mechanism (8).

2. The jacking device for flanging the tetrafluoride pipe according to claim 1, which is characterized in that: the utility model discloses a spacing chassis, including bracing piece (2), bracing piece, stepped shaft (9) and step shaft (9), the stepped shaft (9) are formed by the barrel stack of a plurality of different diameters, and the barrel reduces to keeping away from between spacing chassis (1) the direction.

3. The jacking device for flanging the tetrafluoride pipe according to claim 1, which is characterized in that: stop gear (8) are including setting up limiting plate (10) on bracing piece (2), and the cover has spring (11) on bracing piece (2) between limiting plate (10) and activity dish (7), and threaded connection has nut (12) on bracing piece (2) of activity dish (7) opposite side, and nut (12) and spring (11) combined action are spacing to activity dish (7).

4. The jacking device for flanging the tetrafluoride pipe according to claim 3, wherein the jacking device comprises: the movable disc (7) is provided with a bulge which is arranged in the waist-shaped groove (13) of the supporting rod (2) in a sliding manner.