function wk_add_to_cart() {
    $term_id = get_queried_object()->term_id;
    $post_id = 'product_cat_'.$term_id;
    $wk_cat_value = get_term_meta($term_id, 'wh_meta_cat_template', true);    
    global $product;
    if (true) {     
        if ( $product && $product->is_type( 'simple' ) && $product->is_purchasable() && $product->is_in_stock() && ! $product->is_sold_individually() )  {
        echo '<form action="' . esc_url( $product->add_to_cart_url() ) . '" class="cart-new" method="post" enctype="multipart/form-data">';
        echo  woocommerce_quantity_input( array(), $product, false );
        echo  '<div style="margin: auto; width: 150px; float: none;"><button type="submit" class="button alt" style=" padding: 15px 40px; ">' . esc_html( $product->add_to_cart_text() ) . '</button></div>';
        echo  '</form>';
       }
    }
}

add_action('woocommerce_after_shop_loop_item','wk_add_to_cart');