Page 81 - 《橡塑技术与装备》英文版2026年2期

TEST AND ANALYSIS

utilizes linear guide rails and trapezoidal lead screws to achieve debugging process.
its expansion and contraction function, with a maximum range During the application of the marking device on the tire
of movement being 1100~1600 mm from the distance marker building machine, it is necessary to ensure that the laser light
(see Figure 2). The expansion and contraction mechanism is vertically irradiated on the drum surface, and the accuracy is
enables debugging personnel to visually observe the accuracy always controlled within a certain range throughout the lateral
of the laser light line within the required range specified in the movement of the marking device. This requires that the lateral
protocol. movement direction of the marking device is always parallel to
(5) The drum surface assembly is installed on the moving the axis of the drum. Applying this principle to the debugging
frame of the expansion and contraction mechanism, adjusting tooling means ensuring that the installation surface of the
its distance from the marking device as the expansion and marking device is parallel to the axes of multiple drum surface
locking mechanism operates. The drum surface assembly toolings.
resembles the shape of a drum surface, but it cannot rotate Adjust and verify this parallelism on the currently
like a drum. It consists of seven identical half-moon-shaped designed tooling. This can be done by measuring the distance
brackets, and the installation position is limited by the between the two connecting pieces on the left and right of the
processing machinery to ensure consistency in installation mounting frame and the two ends of the debugging device.
location. The surface of the bracket is designed with three When the distances on both sides are the same, it can be
recessed platforms, which ensure the consistency of the seven concluded that this parallelism is qualified. The specifics are
drum surface brackets during processing. The three recessed shown in figure 4 below.
platforms are respectively equipped with upper, middle, and
lower scales, and the scales are aligned using a plumb line
so that the projections of their scales on the horizontal plane
coincide (see Figure 3). The drum surface tooling simulates
the actual drum surface shape, aiming to reduce the difference
between the tooling and the actual working conditions,
thereby achieving higher debugging accuracy. The three scales
installed on the drum surface tooling allow for more intuitive
observation of the verticality of the laser light lines and their
parallelism to each other.

Figure 4 Schematic diagram of construction

To adjust the distance c between the two ends to be equal,
that is, c 1 =c 2 , the first step is to adjust the distance a between
the reference points of the installation frame and the debugging
device to be equal. This process is mainly achieved through
equal-length tooling. Use a plumb bob to project the positions
Figure 3 Drumhead tooling
of both sides of the installation frame onto the ground, and
1.2 Construction design of tooling install equal-length tooling on both ends of the debugging
The debugging of the laser light marker requires fixing device so that the plumb bob overlaps with the tooling to
the positions of the mounting frame and the debugging device, ensure a 1 =a 2 . Both the installation frame and the debugging
and adjusting the relative relationship between the two frames device are equipped with horizontal adjustment mechanisms.
to ensure the convenience and reliability of the subsequent When both mechanisms are horizontal, it can be determined

Vol.52，2026 ·37·