WO2015096728A1

WO2015096728A1 - Mechanical guide device and molding drum installed with same

Info

Publication number: WO2015096728A1
Application number: PCT/CN2014/094787
Authority: WO
Inventors: 王延书; 刘明; 王祥竹; 闻德生; 谭丽丽; 李彦海; 胡勐; 齐思晨
Original assignee: 软控股份有限公司
Priority date: 2013-12-27
Filing date: 2014-12-24
Publication date: 2015-07-02
Also published as: CN104742392A

Abstract

Provided is a mechanical guide device comprising a rotating shaft provided with symmetrical guide grooves thereon, and a synchronizing pin with one end being fixed on subsequent linear movement devices, and the other end cooperating with the guide grooves. When the linear movement devices at both sides of the rotating shaft move toward or away from each other, cooperation between the synchronizing pin and the guide grooves performs mechanical positioning and guiding, thus ensuring consistency of the linear movement at both sides of the rotating shaft. Also provided is a molding drum installed with the mechanical guide device.

Description

Mechanical guiding device and forming drum equipped with the mechanical guiding device

Technical field

The invention belongs to the field of tire rubber machinery, and in particular to a drive component on a forming drum.

Background technique

At present, the mechanical forming drums on the market, the anti-packaging rods, the tire side and the lock block synchronization are mainly powered by the air source. Referring to FIG. 1, the anti-packing rod landing drive structure of the existing forming drum mainly includes: the pressing ring 1. The reverse wrap 2, the rear end cover 3, the cylinder block 4, the sliding sleeve 5, the piston 6 and the front end cover 7, etc., the rear end cover 3, the cylinder block 4 and the front end cover 7 are connected by bolts, and can be simultaneously advanced and retracted; The ring 1 is fixed to the rear end cover by bolts, and the reverse wrap 2 can be rotated on the pressing ring 1; the rear end cover 3, the piston 6, the cylinder block 4, and the sliding sleeve 5 form a closed air chamber 8; the front end cover 7, The piston 6, the cylinder block 4, and the sliding sleeve 5 form a closed air chamber 9; when the

air chambers

8, 9 are ventilated, the reverse shaft is driven to rise and fall, because the compressibility of the gas is too strong, the compressed air pressure is unstable, and the flow control is not Stabilization, as well as the lack of mechanical guidance of the anti-package rod, resulting in the unsynchronization of the left and right anti-package rods, the movement of the two layers in the anti-envelope process is difficult to ensure synchronization, the asymmetry of the anti-package, resulting in the two sides of the layer The rubber material is asymmetrical, which affects the dynamic balance and uniformity of the tire. .

Summary of the invention

In order to solve the problem that the anti-package bar reverse package or the lock block synchronization process on the forming drum in the prior art is difficult to ensure synchronization and affect the subsequent tire dynamic balance and uniformity index, the present invention proposes a mechanical guiding device, and the specific scheme is as follows:

A mechanical guiding device comprises: a rotating shaft on which a left and right symmetrical guiding groove is arranged; a synchronizing pin, one end is fixed on the subsequent linear motion device, and the other end is matched with the guiding groove; and linear motion on both sides of the rotating shaft When the devices are moving in opposite directions or relative to each other, the synchronizing pins on both sides of the rotating shaft are close to or separated from each other along the respective guiding grooves while the rotating shaft rotates.

Further, the guiding groove is a spiral groove.

Further, the guide groove leaves a gap of 1-2 mm between the groove width direction and the synchronization pin engaged therewith.

Further, the other end of the synchronizing pin is engaged with the guiding groove by a rolling bearing.

Further, the number of the spiral grooves is two.

Further, the number of the spiral grooves is four, and the two spiral grooves on one side are symmetrically disposed on the upper and lower sides.

The invention also provides a forming drum comprising a linear motion device and a screw, the linear motion device comprising a reverse package driving device and a lock block driving device, wherein the reverse wrapping driving device is mounted with a mechanical guiding device;

The mechanical guiding device comprises a rotating shaft and a synchronizing pin, the rotating shaft is rotatably connected to the lead screw, and a left and right symmetrical guiding groove is arranged thereon, and one end of the synchronizing pin is fixed on the reverse wrapping driving device. a cylinder front end cover, the other end of which cooperates with the guiding groove;

When the reverse-pack driving devices on both sides of the rotating shaft move in opposite or opposite directions, the synchronizing pins on both sides of the rotating shaft are close to or separated from each other along the respective guiding grooves while the rotating shaft rotates.

The present invention further provides a forming drum comprising a linear motion device and a lead screw, the linear motion device comprising a reverse package driving device and a lock block driving device, wherein the locking block driving device is mounted with a locking block mechanical guiding device; The mechanical guiding device comprises a lock block rotating shaft and a lock block synchronizing pin, wherein the lock block rotating shaft is rotatably connected to the lead screw, and the left and right symmetrical guiding grooves are arranged thereon, and the lock block synchronizing pin is fixed at one end On the piston rod on the lock block driving device, the other end cooperates with the guiding groove; when the locking block driving device on both sides of the rotating shaft of the locking block opposes or moves relative to each other, the locking block synchronous pin along both sides of the rotating shaft of the locking block The respective guide grooves are close to or separated from each other while the lock block rotation axis rotates.

Further, the lead screw includes a reverse-wrapped screw and a lock block screw, and the lock block rotating shaft is rotatably connected to the lock block screw; the reverse-package driving device is mounted with a reverse-package mechanical guiding device; The mechanical guiding device comprises a reverse rotation shaft and a reverse rotation synchronization pin, and the reverse rotation shaft is rotatably connected to the reverse rubber, and a left and right symmetrical guide groove is arranged thereon, and the reverse package is synchronized. One end of the pin is fixed on the front end cover of the cylinder on the reverse-packing driving device, and the other end is matched with the guiding groove; when the reverse-packing driving device on both sides of the reverse-packing rotating shaft faces or moves relative to each other, the opposite sides of the rotating shaft are reversed. The packet synchronizing pins are close to or separated from each other along the respective guiding grooves while rotating the rotating shaft.

Compared with the prior art, the advantages and positive effects of the present invention are as follows:

The invention provides a mechanical guiding device, which can make the linear motion device on both sides of the rotating shaft face and move relative to each other, and cooperate with the guiding groove to play a mechanical positioning and guiding role, thereby ensuring both sides of the rotating shaft. Linear motion equipment works consistently.

When the mechanical guiding device is applied to the reverse-packing driving device on the forming drum, the reverse rotation of the reverse-rotating rods on the left and right sides of the rotating shaft can be realized, when the mechanical guiding device is applied to the locking block driving device on the forming drum, The lock block synchronization of the left and right sides of the rotary shaft can be realized.

Other features and advantages of the present invention will become apparent from the Detailed Description of the Drawing.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic view showing a structure of a reversing shaft of a conventional forming drum;

Figure 1: in: 1, the compression ring; 2, the reverse wrap; 3, the rear end cover; 4, the cylinder block; 5, the sliding sleeve; 6, the piston; 7, the front end cover; 8, the air chamber; ;

2 is a schematic structural view of a mechanical forming drum for realizing anti-package bar synchronous reverse wrapping according to an embodiment of the present invention;

Figure 3 is a front view of a rotating shaft in accordance with an embodiment of the present invention;

4 is a top view of a rotating shaft in an embodiment of the present invention;

Figure 5 is a perspective view of a rotating shaft in accordance with an embodiment of the present invention;

Figure 2 - Figure 5: 1, screw; 2, compression ring; 3, reverse wrap; 4, rear end cover; 5, cylinder block; 6, piston; 7, front end cover; 8, synchronous pin; , rotating shaft; 9-1, spiral groove; 10, air pipe.

detailed description

Embodiment 1 Referring to FIG. 2, the present embodiment provides a mechanical guiding device including a rotating shaft 9 and a synchronizing pin 8.

The rotary shaft 9 is rotatably mounted on other devices to be mounted, and the rotary shaft 9 is provided with a guide groove 9-1. One end of the synchronizing pin 8 is fixed on a linear motion device to be installed later, and the other end is engaged with the guiding groove 9-1. Referring to FIG. 3 to FIG. 5, two guiding grooves 9 are arranged symmetrically on the rotating shaft 9 1. The guiding groove of the embodiment is a spiral groove 9-1, and the spiral grooves 9-1 on both sides are respectively matched with one end of a synchronous pin 8, and the other end of the synchronous pin 8 is connected to the respective linear motion device when the rotating shaft When the linear motion devices on both sides face or move relative to each other, the synchronizing pins 8 on both sides of the rotary shaft 9 are close to or separated from each other along the respective guide grooves 9-1, and the rotary shaft 9 is rotated.

It should be noted that, in this embodiment, a spiral groove is formed on the rotating shaft. Of course, the purpose of the present invention can be achieved by a groove that satisfies the movement of the synchronous pin and ensures the synchronous movement of the linear motion device driven by the synchronous pin. In order to reduce the friction between the synchronizing pin 8 and the guide groove 9-1, the other end of the synchronizing pin 8 is engaged with the guide groove by a rolling bearing. In order to ensure smooth movement of the synchronizing pin in the guide groove, the guide groove leaves a gap of 1-2 mm between the slot width and the synchronizing pin.

In this embodiment, the number of the spiral grooves is two, and the number of the spiral grooves is also four, and the two spiral grooves on one side are symmetrically disposed on the upper and lower sides.

Embodiment 2, also referring to FIG. 2 to FIG. 5, FIG. 2 is a schematic structural view of a mechanical forming drum for realizing the reverse wrap of the reverse wrap. As shown in the figure, the present embodiment applies the mechanical guiding device of the first embodiment to the forming drum. In the reverse package drive, specifically, the synchronizing shaft 9 is sleeved on the outer surface of the lead screw 1, and the two are connected by bearings at both ends, and can be rotated on the lead screw 1, the rear end cover 4, the cylinder block 5 and the front end cover 7 By the bolt connection to form the reverse-pack driving device, the forward and backward movement can be realized at the same time; the pressing ring 2 is fixed on the rear end cover 4 by bolts, and the reverse-packing rod 3 can be rotated on the pressing ring 2; the synchronizing pin 8 and the front end cover 7 By the bolt connection, the synchronizing pin 8 is inserted into the spiral groove 9-1 of the synchronizing shaft 9; the front end cover 7 and the piston 6 form a closed air chamber, and when the air tube 10 is ventilated into the air chamber, the front end cover 7 performs axial movement while driving synchronization. The pin 8 is axially moved to slide the synchronizing pin 8 in the spiral groove 11, thereby driving the synchronizing shaft 9 to rotate along its own axis, and the rotational motion of the rotating shaft can drive the synchronizing shaft to move in the spiral groove. Since the symmetrical spiral grooves 11 are arranged on both sides of the synchronous shaft 9, the axial displacements of the synchronous pins on both sides are completely synchronized, that is, the anti-package reverse rotation of the left and right sides is synchronized.

In this embodiment, the reverse buckling of the mechanical drum is realized by a simple mechanical guiding device, thereby improving the quality of the tire forming.

Embodiment 3, this embodiment applies the mechanical guiding device in the first embodiment to the lock block driving device of the forming drum, and the principle is similar to the second embodiment, which is not described herein. Of course, the above mechanical guiding device can also be installed simultaneously on the lock block driving device and the reverse package driving device of the forming drum.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any one skilled in the art may use the above-disclosed technical content to change or modify the equivalent embodiment. However, any simple modifications, equivalent changes and modifications made to the above embodiments in accordance with the technical spirit of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

A mechanical guiding device comprising:

a rotating shaft on which a left and right symmetrical guiding groove is provided;

a synchronizing pin, one end is fixed on the subsequent linear motion device, and the other end is matched with the guiding groove;

When the linear motion devices on both sides of the rotating shaft move in opposite or opposite directions, the synchronizing pins on both sides of the rotating shaft are close to or separated from each other along the respective guiding grooves, and the rotating shaft rotates.
The mechanical guiding device according to claim 1, wherein the guide groove is a spiral groove.
The mechanical guiding device according to claim 2, wherein said guide groove leaves a gap of 1-2 mm between the groove width direction and the timing pin engaged therewith.
The mechanical guiding device according to claim 3, wherein the other end of the synchronizing pin is engaged with the guide groove by a rolling bearing.
The mechanical guiding device according to claim 4, wherein the number of the spiral grooves is two.
The mechanical guiding device according to claim 4, wherein the number of the spiral grooves is four, and wherein the two spiral grooves on one side are disposed symmetrically on the lower side.
A forming drum comprising a linear motion device and a lead screw, the linear motion device comprising a reverse package driving device and a lock block driving device, characterized in that:

The reverse guiding drive device is mounted with a mechanical guiding device;

The mechanical guiding device comprises a rotating shaft and a synchronizing pin, the rotating shaft is rotatably connected to the lead screw, and a left and right symmetrical guiding groove is arranged thereon, and one end of the synchronizing pin is fixed on the reverse wrapping driving device. a cylinder front end cover, the other end of which cooperates with the guiding groove;

When the reverse-pack driving devices on both sides of the rotating shaft move in opposite or opposite directions, the synchronizing pins on both sides of the rotating shaft are close to or separated from each other along the respective guiding grooves while the rotating shaft rotates.
A forming drum comprising a linear motion device and a lead screw, the linear motion device comprising a reverse package driving device and a lock block driving device, characterized in that:

a lock block mechanical guiding device is mounted on the lock block driving device;

The mechanical guiding device comprises a lock block rotating shaft and a lock block synchronization pin, and the lock block rotating shaft is rotatable Connected to the lead screw, which is provided with a left-right symmetric guiding groove, and one end of the locking block synchronizing pin is fixed on the piston rod on the lock block driving device, and the other end is matched with the guiding groove;

When the lock block driving devices on both sides of the rotating shaft of the lock block face or move relative to each other, the lock block synchronizing pins on both sides of the rotating shaft of the lock block are close to or separated from each other along the respective guiding grooves, and the rotating shaft of the lock block rotates.
A forming drum according to claim 8 wherein:

The lead screw includes a reverse-wrapped screw and a lock block screw, and the lock block rotating shaft is rotatably coupled to the lock block screw;

a reverse-package mechanical guiding device is mounted on the reverse-packing driving device;

The mechanical guiding device comprises a reverse rotation shaft and a reverse rotation synchronization pin, and the reverse rotation shaft is rotatably connected to the reverse rubber, and a left and right symmetrical guide groove is arranged thereon, and the reverse package is synchronized. One end of the pin is fixed on the front end cover of the cylinder on the reverse-pack driving device, and the other end is matched with the guiding groove;

When the reverse-packing driving devices on both sides of the reverse-packing rotating shaft face or move relative to each other, the reverse-package synchronous pins on both sides of the reverse-packing rotating shaft are close to or separated from each other along the respective guiding grooves, and at the same time, the reverse-packing rotating shaft rotates.
A forming drum according to any one of claims 7 to 9, wherein the guide groove is a spiral groove.