CN100398308C

CN100398308C - Bladder-forming drum for small industrial tyre

Info

Publication number: CN100398308C
Application number: CNB200510016117XA
Authority: CN
Inventors: 张建浩; 张芝泉
Original assignee: Tianjin Rubber & Plastics Institute Co Ltd
Current assignee: Tianjin Saixiang investment limited liability company
Priority date: 2005-11-16
Filing date: 2005-11-16
Publication date: 2008-07-02
Anticipated expiration: 2025-11-16
Also published as: CN1966251A

Abstract

The invention relates to a capsule reverse-pack shaping drum used to produce small tyre, wherein it is characterized in that: a group of serial cylinders drive the arc block; said cylinders comprise the cylinder I sheathing the hollow main axle, the cylinder II and cylinder III sheathing the inner cylinder of cylinder I; there are several II cylinders. The inventive cylinders will function together when the piston moves, to generate enough force to push the arc block to lock the tyre ring, to aerate, reverse-pack and roll the tyre.

Description

Bladder-forming drum for small industrial tyre

Technical field

The present invention relates to a kind of tire building machinery, particularly a kind of capsule reverse wrap molding drum that is used to make the back yard industry vehicle tyre.

Background technology

Common one-through tire capsule shaping drum, because the wheel rim specification is bigger, the diameter of drum is big, the secter pat cylinder can have enough piston bearing areas, make secter pat have enough big strength to remove to lock tyre bead, finishing inflation, anti-package, roll forming, all is single air cylinder structure therefore, and the side drum is short simple in structure.The tyre bead diameter is 10 " below bladder-forming drum for small industrial tyre, if adopt said structure, because the secter pat cylinder bore is too little, piston can not provide enough thrust, removes to promote secter pat locking tyre bead, finishes inflation, anti-package and the roll extrusion of fetus.

Summary of the invention

The technical problem to be solved in the present invention provides a kind of bladder-forming drum for small industrial tyre, and the structure of this assembly drum can make the secter pat cylinder provide enough strength to promote secter pat locking tyre bead, finishes inflation, anti-package and the roll extrusion of fetus.

For solving the problems of the technologies described above, a kind of bladder-forming drum for small industrial tyre of the present invention comprises air-channel system, the hollow spindle that links to each other with mainframe box, right-and-left threaded power transmission shaft is arranged, power transmission shaft is positioned at hollow spindle, about the side drum of two symmetrical configuration be installed in outside the hollow spindle, the capsule retention mechanism is drawn together in each side bulge, the fastening tyre bead of secter pat mechanism, between the left and right sides drum, the structural member that is used for the supporting carcass tube is installed, the fastening tyre bead of described secter pat mechanism comprises secter pat, the guiding of secter pat and bracing or strutting arrangement, drive the connecting rod and the cylinder of secter pat, it is characterized in that: the cylinder of described drive secter pat is one group of polyphone cylinder, and described polyphone cylinder comprises the cylinder I that is sleeved on the hollow spindle, be sleeved on the cylinder I I on the cylinder I inner core, cylinder I II; Wherein cylinder I comprises cylinder I inner core, cylinder I drive end bearing bracket and cylinder I urceolus, cylinder I rear end cap; The guiding of secter pat and bracing or strutting arrangement are installed on the cylinder I inner core, and the cylinder I inner core can slide along hollow spindle, the cylinder I piston bush be contained on the cylinder I inner core and and rod hinge connection, can slide along the cylinder I inner core; Cylinder I I comprises the cylinder I I piston that is packed on the cylinder I piston, by drive end bearing bracket and the cylinder II rear end cap of the double cylinder I I inner core of doing of cylinder I piston, cylinder I I urceolus, cylinder I I, cylinder I I drive end bearing bracket is done by the rear end cap of cylinder I is double; Cylinder I II comprises the cylinder I II piston that is packed in cylinder I piston rear end portion, by the drive end bearing bracket and the rear end cap of cylinder I piston and the double cylinder I II inner core of doing of cylinder I inner core, cylinder I II urceolus, cylinder, rear end cap one end and the cylinder I inner core of cylinder I II join, the other end and drive block join, the rear end cap of cylinder I II is sleeved on the hollow spindle, can slide along hollow spindle, drive block is driven by positive and negative screw-thread drive shaft, can move along the keyway on the hollow spindle, drive block drives cylinder I II rear end cap, and cylinder I II rear end cap drives the cylinder I inner core.

Described promotion secter pat connecting rod and and its hinged cylinder I piston between pad is installed, the face that contact with connecting rod of pad is adaptive mutually, with realization cylinder I piston promotion connecting rod, finishes the transmission of power by described pad.

Described cylinder I I is one.

Superiority of the present invention is that the secter pat cylinder adopts one group of serial cylinders, and during piston-advance, this group cylinder acting in conjunction can produce enough making a concerted effort, and promotes secter pat locking tyre bead, finishes inflation, anti-package and the roll extrusion of fetus.

Description of drawings

The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:

Fig. 1 is the structural representation of bladder-forming drum for small industrial tyre of the present invention;

Fig. 2 is the cylinder I piston schematic diagram of bladder-forming drum for small industrial tyre of the present invention;

Fig. 3 is the side view of Fig. 2;

Fig. 4 for the promotion secter pat connecting rod of bladder-forming drum for small industrial tyre of the present invention and and its hinged cylinder I piston between the schematic diagram of the pad installed;

Fig. 5 is the side view of Fig. 4.

Wherein: 1 hollow spindle, 2 positive and negative screw-thread drive shafts, 3 cylinder I, 3-1 cylinder I inner core, 3-2 cylinder I piston, 3-3 cylinder I drive end bearing bracket, 3-4 cylinder I urceolus, 3-5 cylinder I rear end cap, 4 cylinder I I, 4-2 cylinder I I piston, 4-4 cylinder I I urceolus, 4-5 cylinder I I rear end cap, 5 cylinder I II, 5-2 cylinder I II piston, 5-4 cylinder I II urceolus, 5-5 cylinder I II rear end cap, 6 secter pats, 7 connecting rods, 8 drive blocks, 9 power transmission shaft nuts.

Specific embodiment

The course of work of the present invention is: this bladder-forming drum for small industrial tyre is installed on the final drive shaft of make-up machine mainframe box.In the process of tire building, behind the location of finishing applying of carcass cord and wire loop, drive positive and negative screw-thread drive shaft 2, power transmission shaft nut 9 drives drive blocks 8 and moves to desired location along the promotion of the groove on the hollow spindle 1 left and right sides drum to the centre; The back cavity air feed of giving each cylinder in the polyphone air cylinder group simultaneously is to produce thrust, acting in conjunction is on cylinder I piston 3-2, produce and make a concerted effort, making the secter pat connection rod set promote fastening carcass secter pat group rises along the secter pat positioning disk, finish operation fastening and the sealing carcass, finish the carcass pre-setting to carcass inner chamber and the ventilation of tire shoulder capsule simultaneously; Suit crown layer drives positive and negative screw-thread drive shaft 2, makes power transmission shaft nut 9 drive drive block 8 and moves to desired location along the promotion of the groove on main shaft left and right sides drum to the centre; Continuing to finish carcass to the ventilation of carcass inner chamber and tire shoulder capsule simultaneously finally finalizes the design; Give two reverse-wrapped capsule ventilations, finish anti-package, the roll forming on sidewall; The back cavity exhaust of each cylinder in the air cylinder group, ante-chamber is given gas simultaneously, and secter pat connection rod set band secter pat and is resetted; Drive positive and negative screw-thread drive shaft 2, make power transmission shaft nut 9 drive drive block 8 and move to original position to both sides along the promotion of the keyway on main shaft left and right sides drum.

See also Fig. 1, Fig. 2, the same with general assembly drum, this bladder-forming drum for small industrial tyre is installed on the make-up machine mainframe box.This bladder-forming drum for small industrial tyre, comprise air-channel system, the hollow spindle 1 that links to each other with mainframe box, right-and-left threaded power transmission shaft 2 is arranged, power transmission shaft 2 is positioned at hollow spindle 1, about the side drum of two symmetrical configuration be installed in outside the hollow spindle 1, the capsule retention mechanism is drawn together in each side bulge, the fastening tyre bead of secter pat mechanism, between the left and right sides drum, the structural member that is used for the supporting carcass tube is installed, the fastening tyre bead of described secter pat mechanism comprises the secter pat group, and guiding and bracing or strutting arrangement, drive the one group of connecting rod of secter pat and the cylinder of drivening rod, connection rod set is connected on the same cylinder simultaneously, and the structure of said structure and general assembly drum is basic identical.

The difference of this invention and general assembly drum is: the cylinder that drives secter pat, if adopt the structure of the single cylinder of general assembly drum, because the restriction in space, cylinder bore is too little, piston can not provide enough thrust, remove to promote secter pat locking tyre bead, finish inflation, anti-package and the roll extrusion of fetus.Therefore the cylinder of drive secter pat of the present invention has adopted one group of polyphone cylinder, and described polyphone cylinder comprises the cylinder I 3 that is sleeved on the hollow spindle 1, is sleeved on cylinder I I4, cylinder I II5 on the cylinder I inner core 3-1; Wherein cylinder I 3 comprises cylinder I inner core 3-1, cylinder I drive end bearing bracket 3-3, rear end cap 3-5 and cylinder I urceolus 3-4; Cylinder I inner core 3-1 is sleeved on the hollow spindle 1, the structural similarity of the guiding of secter pat and bracing or strutting arrangement and general assembly drum, be installed on the cylinder I inner core 3-1, cylinder I inner core 3-1 can slide along hollow spindle 1, it is last and hinged with connecting rod 7 that cylinder I piston 3-2 is sleeved on cylinder I inner core 3-1, and can slide along cylinder I inner core 3-1; Cylinder I drive end bearing bracket 3-3, rear end cap 3-5 are sleeved on the cylinder I inner core 3-1, and the composition of cylinder I 3 is except that the form of piston, and is similar with general assembly drum; Cylinder I I4 comprises the cylinder I I piston 4-2 that is packed on the cylinder I piston 3-2, by the double cylinder I I inner core of doing of cylinder I piston 3-2, cylinder I I urceolus 4-4, the drive end bearing bracket 3-5 of cylinder I I and cylinder II rear end cap 4-5, cylinder I I rear end cap 4-5 is sleeved on the cylinder I piston 3-2, and cylinder I I drive end bearing bracket is by double the doing of rear end cap 3-5 of cylinder I; Cylinder I II5 comprises the cylinder I II piston 5-2 that is packed in cylinder I piston 3-2 rearward end, by cylinder I piston 3-2 and the double cylinder I II inner core of doing of cylinder I inner core 3-1, cylinder I II urceolus 5-4, cylinder I II drive end bearing bracket 4-5 and cylinder III rear end cap 5-5, cylinder I II drive end bearing bracket is done by the rear end cap of cylinder I I is double, rear end cap 5-5 one end and the cylinder I inner core 3-1 of cylinder I II join, the other end and drive block 8 join, cylinder I II rear end cap 5-5 is sleeved on the hollow spindle 1, can slide along hollow spindle 1, drive block 8 is driven by power transmission shaft 2, can move along the keyway on the hollow spindle 1, drive block 8 drives cylinder I II rear end cap 5-5, cylinder I II rear end cap 5-5 drives cylinder I inner core 3-1, moves to the centre thereby promote whole side drum; The structure of above-mentioned polyphone cylinder, because the piston of cylinder I I4, cylinder I II5 all is packed on the cylinder I piston 3-2, thrust on the cylinder I piston 3-2 not only comprises from cylinder I 3, also comprise from cylinder I I4, cylinder I II5, it is making a concerted effort that thrust on the cylinder I piston 3-2 is cylinder I 3, cylinder I I4, cylinder I II5 produced, therefore cylinder I I4 can have a plurality ofly as required, and this polyphone cylinder can produce enough making a concerted effort, and locks tyre beads by connecting rod 7 promotion secter pats 6; Cylinder I 3, cylinder I I4, the exhaust of cylinder I II5 back cavity, cylinder I I4, cylinder I II5 ante-chamber air feed, acting in conjunction is in cylinder I piston 3-2, and cylinder I piston 3-2 pulling connecting rod 7 drives secter pat 6 and resets.Thereby finish inflation, anti-package and the roll extrusion of fetus.Keep gas circuit that cylinder finishes exercises on cylinder wall, use the sealing ring leakproof between cylinder.

Cylinder I I4 can have several as required, considers overall structure of the present invention, described cylinder I I4 have one comparatively reasonable.

See also Fig. 1, Fig. 3, because the physical dimension of this bladder-forming drum for small industrial tyre is less, it is less with the bearing pin of cylinder I piston 3-2 to connect connecting rod 7, but cylinder I is bigger by the power that bearing pin acts on the connecting rod 7, bearing pin fractures easily, therefore connecting rod 7 with and its hinged cylinder I piston 3-2 between pad is installed, it is adaptive mutually to fill up the face that contacts with connecting rod 7, to realize that cylinder I piston 3-2 promotes connecting rod is the transmission of finishing power by described pad, rather than finishes the transmission of power by bearing pin; When secter pat 6 resets, load not, resistance is very little in other words, is the transmission of having finished power by bearing pin, thus secter pat 6 when resetting pad inoperative.

Claims

1. bladder-forming drum for small industrial tyre, comprise air-channel system, the hollow spindle that links to each other with mainframe box, positive and negative screw-thread drive shaft is arranged, power transmission shaft is positioned at hollow spindle, about the side drum of two symmetrical configuration be installed in outside the hollow spindle, the capsule retention mechanism is drawn together in each side bulge, the fastening tyre bead of secter pat mechanism, between the left and right sides drum, the structural member that is used for the supporting carcass tube is installed, the fastening tyre bead of described secter pat mechanism comprises secter pat, the guiding of secter pat and bracing or strutting arrangement, drive the connecting rod and the cylinder of secter pat, it is characterized in that: the cylinder of described drive secter pat is one group of polyphone cylinder, and described polyphone cylinder comprises the cylinder I (3) that is sleeved on the hollow spindle (1), be sleeved on the cylinder I I (4) on the cylinder I inner core (3-1), cylinder I II (5); Wherein cylinder I (3) comprises cylinder I inner core (3-1), cylinder I drive end bearing bracket (3-3) and cylinder I urceolus (3-4), cylinder I rear end cap (3-5); The guiding of secter pat (6) and bracing or strutting arrangement are installed on the cylinder I inner core (3-1), cylinder I inner core (3-1) can slide along hollow spindle (1), it is last and hinged with connecting rod (7) that cylinder I piston (3-2) is sleeved on cylinder I inner core (3-1), can slide along cylinder I inner core (3-1); Cylinder I I (4) comprises the cylinder I I piston (4-2) that is packed on the cylinder I piston (3-2), by drive end bearing bracket (3-5) and the cylinder II rear end cap (4-5) of the double cylinder I I inner core of doing of cylinder I piston (3-2), cylinder I I urceolus (4-4), cylinder I I, cylinder I I drive end bearing bracket is by double the doing of rear end cap (3-5) of cylinder I; Cylinder I II (5) comprises the cylinder I II piston (5-2) that is packed in cylinder I piston (3-2) rearward end, by cylinder I piston (3-2) and the double cylinder I II inner core of doing of cylinder I inner core (3-1), cylinder I II urceolus (5-4), cylinder I II drive end bearing bracket (4-5) and cylinder III rear end cap (5-5), cylinder I II rear end cap (5-5) end and cylinder I inner core (3-1) join, the other end and drive block (8) join, cylinder I II rear end cap (5-5) is sleeved on the hollow spindle (1), can slide along hollow spindle (1), drive block (8) is driven by positive and negative screw-thread drive shaft (2), can move along the keyway on the hollow spindle (1), drive block (8) drives cylinder I II rear end cap (5-5), and cylinder I II rear end cap (5-5) drives cylinder I inner core (3-1).

2. bladder-forming drum for small industrial tyre according to claim 1, tool be characterised in that described promotion secter pat connecting rod (7) and and its hinged cylinder I piston (3-2) between pad (9) is installed, pad (9) is adaptive mutually with the face that connecting rod (7) contacts, to realize that cylinder I piston (3-2) promotes connecting rod (7), finishes the transmission of power by described pad (9).

3. bladder-forming drum for small industrial tyre according to claim 1 and 2 is characterized in that described cylinder I I (4) is one.