CN106182537B

CN106182537B - Transmission belt forms hub

Info

Publication number: CN106182537B
Application number: CN201610692277.4A
Authority: CN
Inventors: 冯永强; 段让明; 陈贤义; 苏玉龙
Original assignee: GATES UNITTA POWER TRANSMISSION (SUZHOU) Ltd
Current assignee: GATES UNITTA POWER TRANSMISSION (SUZHOU) Ltd
Priority date: 2016-08-03
Filing date: 2016-08-03
Publication date: 2018-11-30
Anticipated expiration: 2036-08-03
Also published as: CN106182537A

Abstract

The present invention provides a kind of transmission belts to form hub, including skeleton, forming surface, and the chamber formed between skeleton and forming surface by chamber inner wall, chamber outer wall and chamber sidewall, the chamber is connect with skeleton and forming surface, stomata is distributed in forming surface, chamber includes at least two mutually isolated chambers on being located at molding hub axial direction, each chamber has air inlet and venthole, the venthole is communicated with stomata corresponding in forming surface, the new molding hub is detached from convenient for gum cover and molding hub, improves the quality and working efficiency of gum cover.

Description

Transmission belt forms hub

Technical field：

The invention belongs to transmission belt manufacture technology fields, more particularly relate to the molding hub of production transmission belt.

Background technique：

It is an important tool in transmission belt manufacturing process that transmission belt, which forms hub, in transmission belt in general transmission belt production It forms and winds the formation gum cover such as rubber, cotton rope, cloth on hub, then gum cover is vulcanized, is cut, and then forms transmission belt.By In the difference of production technology, some gum covers need to be detached from molding hub and place into mold after being formed is vulcanized, and some gum covers are straight Tape splicing is directly vulcanized on molding hub, and the gum cover after then vulcanizing carries out being detached from molding hub again, and the two is referred to as demoulding.But There are certain difficulties for unvulcanized gum cover disengaging molding hub at present, and with reference to Fig. 1, being primarily due to current molding hub includes skeleton 1, the chamber 5 sealed between forming surface 2 and skeleton and forming surface is provided with the multiple outlets connecting with chamber in forming surface Hole 4 when demoulding, is passed through high pressure gas into chamber by air inlet 3 ', high pressure gas is after chamber by forming surface Venthole outflow, separates convenient for unvulcanized gum cover with forming surface and worker removes gum cover, but due to only one on molding hub A chamber, and the stomata in forming surface is connect with chamber, such as when gum cover is detached to the left, on the right side of molding hub in forming surface The exposing of part venthole is begun with, high pressure gas will largely be leaked from the venthole of exposing, and cause the indoor air pressure of chamber insufficient, Leading to form the gum cover on the left of hub can not separate with molding hub surface, cause demoulding difficult, seriously affected the production matter of gum cover Amount and production efficiency.

Summary of the invention：

The main object of the present invention is that a kind of novel molding hub, the molding hub are provided for the shortcomings that above prior art Can gum cover easily, quickly be removed from molding hub.

Realization that the present invention adopts the following technical solutions：A kind of molding hub, including skeleton, forming surface and skeleton and molding The chamber formed between face by chamber inner wall, chamber outer wall, that is, chamber sidewall, the chamber are connect with skeleton and forming surface, molding Stomata is distributed on face, which is at least two mutually isolated chambers on molding hub axial direction, each chamber With air inlet and venthole, which communicates with the corresponding stomata in forming surface.

Preferably, the outer wall of the chamber is forming surface, which is the stomata in forming surface.

Preferably, which is evenly distributed in the forming surface of molding hub.

The skeleton has columnar outer wall, and the inner wall of the chamber is the outer wall of skeleton, which is located at described On skeleton outer wall.

Forming hub further includes multiple tracheaes, which communicates with high pressure gas, and the air inlet of the other end and chamber connects It connects.

Preferably, it is the control effect for preferably realizing each chamber, the switch of control high pressure gas is additionally provided on tracheae Valve or controlled valve and flow control valve.

The skeleton further includes the inner cavity of conveying high-pressure gas, the gas on high pressure gas and molding hub outside the connection of the inner cavity Pipe.

The framework inner cavity can be the cavity extended along skeleton radial end face, can also be for along the cavity of molding hub axle line extension.

It preferably, is the contact area for increasing high pressure gas and gum cover, which can be the groove of right-angled intersection.

Using the molding hub of the structure, so that each chamber is mutually indepedent, and air pressure and flow inside energy independent control, During taking out gum cover, expose the pressure for causing gas not influenced in another side cavity leakage even if the stomata of side Power, convenient for the separation of gum cover and molding hub, is protected so as to all have higher air pressure in demoulding on hub face so as to entirely form It has demonstrate,proved the quality of gum cover and has improved production efficiency.

Detailed description of the invention：

Fig. 1 is the structural schematic diagram that transmission belt forms hub in the prior art.

Fig. 2 is that transmission belt of the present invention forms hub structure schematic diagram.

Fig. 3 is that transmission belt of the present invention forms hub partial enlarged view.

Specific embodiment：

The present invention is further described below by way of specific embodiment.

As shown in Fig. 2, transmission belt molding hub include skeleton 1, forming surface 2 and between skeleton and forming surface by chamber outside The chamber that wall, chamber inner wall and chamber sidewall are formed, the chamber are connect with skeleton and forming surface, are provided with several in forming surface 2 Stomata, chamber inner wall have air inlet, and chamber outer wall has venthole, and chamber venthole can phase with stomata corresponding in forming surface It is intercommunicated.Skeleton includes columnar outer wall, and present embodiment lumen chamber interior walls are the outer wall of skeleton, chamber outer wall be at The forming surface of type hub, chamber sidewall can be the sagittal plane of skeleton, since chamber is to be closed to be formed by skeleton and forming surface, Venthole 4 on chamber is the stomata in forming surface, and chamber air inlet is located on skeleton outer wall；Chamber is forming hub axle to side Upwards include three independent chambers 5, chamber 6, chambers 7, is separated between each chamber by centre partition 10, between three chambers Space is mutually isolated, and the gas in space does not flow mutually, and each chamber has an air inlet 3 and one or more ventholes 4, to make each position uniform force of gum cover, venthole 4 is evenly distributed in forming surface in the axial direction of molding hub with circumferential.

When demoulding, high pressure gas by the corresponding air inlet of each chamber each lead into three independent chambers 5, chamber 6, Then chamber 7 is flowed out by multiple ventholes 4 on molding hub surface, and then in the gum cover and molding being coated on molding hub Hub circulates between surface, separates the two.During gum cover is detached from, it is such as detached from gum cover to the right, is connected with left chamber 5 The venthole connect is then due to exposed and discouraged, but due to being mutually isolated between chamber 6, chamber 7 and chamber 5, then 6 He of chamber Chamber 7 still keeps higher air pressure, and gum cover can smoothly be separated from molding hub.

Alternatively, chamber can arrange two or more independent chamber on molding hub axial direction, often A chamber has an air inlet and a venthole or two air inlets and more than two ventholes, as long as realizing in axial direction In knockout course, when each chamber indoor gas difference, reveals completely.

It is furthermore preferred that equipped with controlled valve or controlled valve and flow control valve on each tracheae, for controlling each tracheae The circulation or closing of interior gas and the size of gas flow separate gum cover with molding hub and are reached with the indoor air pressure of control chamber Better effect.

Further, a upper flexible bushing can be covered in advance on molding hub surface, then successively twine on bushing Gum cover is formed around rubber, cotton rope, cloth etc..During disengaging, after being passed through high pressure gas, bushing is separated with molding hub surface, Bushing is set to be detached from molding hub together with gum cover, bushing has certain supporting role to gum cover, prevents each layer of gum cover from dividing before vulcanization From causing gum cover to fail, since bushing has certain elasticity, bushing is isolated again before vulcanization, improves the quality of gum cover.

In present embodiment, molding hub further includes the framework inner cavity 9 of conveying high-pressure gas, and framework inner cavity can be such as Fig. 1 Cavity that is shown, extending along the radial end face of skeleton, the cavity and gas that can also extend as shown in Figure 2 along molding hub axis direction Pipe 8,8 one end of tracheae are connect with framework inner cavity 9, and the other end is connect with the air inlet 3 on each chamber inner wall, and high pressure gas can pass through The air inlet 3 of framework inner cavity 9, tracheae 8 and each chamber enters each chamber, and in other specific embodiments, high pressure gas can be straight It connects into each chamber, can be with Discrete control as long as each chamber during demoulding may be implemented, and keep pressure supply effect.

In the present invention, to be completely separated convenient for gum cover and molding hub surface, to increase molding hub surface gum cover and gas Contact area, the channel away of right-angled intersection can be used in venthole.

It the above is only being illustrated to the embodiment of the present invention, but is not limitation of the present invention, the skill of all this fields The carried out equivalence changes of art personnel creation according to the present invention all belong to the scope of protection of the present invention.

Claims

1. a kind of transmission belt forms hub, including skeleton, forming surface and between skeleton and forming surface by chamber inner wall, chamber outside The chamber that wall and chamber sidewall are formed, the chamber are connect with skeleton and forming surface, stomata are distributed in forming surface, feature exists In the chamber includes at least two mutually isolated chambers on being located at molding hub axial direction, and each chamber has Air inlet and venthole, the venthole are communicated with stomata corresponding in forming surface, and the molding hub further includes multiple tracheaes, each Described tracheae one end is communicated with high pressure gas, and the other end is connected with the air inlet of the chamber, is also set up on each tracheae There is the controlled valve of control high pressure gas flowing.

2. transmission belt as described in claim 1 forms hub, which is characterized in that the outer wall of the chamber is forming surface, the chamber Room venthole is the stomata in forming surface.

3. transmission belt as claimed in claim 2 forms hub, which is characterized in that the venthole is evenly distributed in the molding In the forming surface of hub.

4. transmission belt as claimed in claim 3 forms hub, which is characterized in that the skeleton has columnar outer wall, described The inner wall of chamber is the outer wall of skeleton, and the chamber air inlet is located on the outer wall of the skeleton.

5. transmission belt as claimed in claim 4 forms hub, which is characterized in that the skeleton further includes the bone of conveying high-pressure gas Frame inner cavity, the framework inner cavity connection external high pressure gas and the tracheae.

6. transmission belt as claimed in claim 5 forms hub, which is characterized in that the framework inner cavity is to prolong along skeleton radial end face The cavity stretched.

7. transmission belt as claimed in claim 6 forms hub, which is characterized in that the framework inner cavity is axially extending along molding hub Cavity.

8. transmission belt as described in claim 1 forms hub, which is characterized in that the stomata in the forming surface is right-angled intersection Groove.