The ribbon is composed of wavy ribbon, die-directed baffle and guide strip on the conveyor belt, so these parts of the die should be designed separately. The die section of rubber products with guide strip guide strip. It plays a guiding and positioning role in the working process of conveyor belt.

横向档板

Transverse baffle

横向挡板有两种类型。一种是适合于倾斜39。以下输送的T型挡板,。一种则是适合于倾斜40。以上的输送的C型挡板。目前，在我国应用比较广泛的是适于倾斜39。以下的T型横向挡板由于挡边采用波纹状,工作时伸缩性较大,可减少应力点的应力集中;而且此带耐压性能高、稳定性能好、自我效果也比较好、耐磨性能优异。

There are two types of transverse baffles. One is suitable for tilt 39. T-type baffle conveyed below. One is suitable for tilting 40. Above the conveyor C baffle. At present, tilt 39 is widely used in China. The following T-type transverse baffle has the characteristics of corrugated edge, greater flexibility when it works, which can reduce the stress concentration at the stress point; moreover, the belt has high pressure resistance, good stability, good self-cleaning effect and excellent wear resistance.

波形挡边

Waveform baffle

波形挡边的几何形状复杂,模具型腔的设计及加工都很困难,因此我们采用镶块组合式结构。这种结构的特点是在压模加工取出制品以及硫化成型时能排除废气。除此之外,型腔磨损或损坏时修理方便,可以单换镶块,节约工料。设计镶拼件—上模波形条,和下模波形条。此两模条波形需上下对称,光洁度要求一致,然后用螺钉分别紧固在上下模上。对于在下模模腔与上下模条的配合尺寸要求比较严格,如果合模间隙过大,镶拼的缝隙造成废边,影响制品的质量,同时造成胶料的流失。所以希望镶拼间隙越小越好,我们选用H7h/`配合.另外,由于在下模还有纵向定位的间题,所以我们在下模条上加定位模条,用螺钉紧固,然后随同下模条一同镶在下模腔内,用螺钉固定。

Because of the complex geometry of waveform baffle, the design and processing of die cavity are very difficult, so we adopt insert combined structure. The feature of this structure is that the exhaust gas can be eliminated when the products are taken out from the die-pressing process and vulcanization moulding. In addition, when the cavity is worn or damaged, it is easy to repair. The insert can be replaced by a single insert to save labor. Firstly, we design the mosaic - upper mode waveform strip and lower mode waveform strip. The waveforms of the two strips should be symmetrical, and the smoothness should be the same. Then the two strips should be fastened on the upper and lower dies with screws respectively. The matching size between the lower die cavity and the upper and lower die strips is strictly required. If the closing gap is too large, the mosaic gap will cause waste edges, which will affect the quality of the product and cause the loss of rubber. Therefore, we hope that the smaller the insertion gap, the better, we choose H7h/` cooperation. In addition, because there is a problem of longitudinal positioning in the lower die, so we add positioning die on the lower die, fasten it with screw, and then insert it into the lower die cavity together with the lower die, and fix it with screw.

为了排除型腔内的空气,在下模腔底部隔一定距离打通孔(孔径为帕)。以上几种制品均由410x1200型鄂式硫3.1橡胶硫化收缩率在工程中,常用制品零件所需胶料的体积与制品的体积的差和零件体积之比,来近似地表示橡胶的硫化收缩率:V,一V,_入-~`,尸一=X100%V2式中,K—胶料收缩率;V;—型腔的体积;VZ—制品零件的体积。收缩率与很多因素有关,在工程中一般取经验数据。因其胶种不同,K值不同,纯胶的K值较大,带夹层胶K值较小。由于我们的制品是纯橡胶,因此在以上设计中取K-2%.32模具型腔设计收缩率确定以后,根据下式确定型腔主要线性尺寸时:D、=(1+K)22式中,DM—模具型腔尺寸;22—制品零件设计图所示尺寸。

In order to eliminate the air in the cavity, holes (aperture is Pa) are drilled at a certain distance at the bottom of the lower cavity. In engineering, the shrinkage of vulcanized rubber of 410x1200 E-type sulphur 3.1 is approximated by the difference between the volume of rubber needed for parts of common products and the volume of parts and the ratio of the volume of parts. The shrinkage of vulcanized rubber is expressed approximately as follows: V, V, in-, corpse 1 = X100% V2, K-rubber shrinkage; V; - cavity volume; VZ-part volume. Contraction rate is related to many factors, and empirical data are usually used in engineering. Because of the different gum types and K value, the K value of pure gum is larger and the K value of sandwich gum is smaller. Since our products are pure rubber, K-2%. 32 die cavity design shrinkage rate is determined in the above design. When the main linear dimensions of the cavity are determined according to the following formula: D, =(1+K) 22, DM-die cavity size; 22-product part design drawing size.

制品零件的口型设计

Mouth Design of Product Parts

在工程中,橡胶的口型与很多因素有关,在设计口型时没有固定的公式与原则,只是通过经验来设计测定。

In engineering, the shape of rubber mouths is related to many factors. There are no fixed formulas and principles in the design of mouths, but only through experience to design and determine.

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