CN201313273Y - Reversing device for tread grinding machine - Google Patents

Abstract

The utility model discloses a reversing device of tread grinding machine and adopts a mechanical reversing pushing structure to realize 180degrees reversing of tread rubber on different conveying lines. Tread rubber maintains to be parallel to the conveying line after reversing so as to facilitate follow-up deviation correction operation. The reversing device is mainly provided with a frame vertically arranged between a first conveying line and a second conveying line, a group of photoelectric switches arranged on both ends of the frame, a running mechanism capable of moving between the photoelectric switches in reciprocating mode, and a reversing lever connected with the running mechanism and vertically extended downwards. The running mechanism drives the reversing lever to convey and transfer tread rubber between the first conveying line and the second conveying line; as the reversing lever which acts on the tread rubber can apply proper thrust on tread rubber, the reversing of tread rubber is stable, the pulling and local deformation are uneasy to occur. The photoelectric switches on both ends of the frame are respectively used for monitoring the movement position of the running mechanism.

Description

Reversing device for tread grinding machine

technical field

The utility model is applied to tire tread grinding machine equipment in the tire retreading process, and belongs to the field of rubber machinery.

Background technique

For the long-term use of waste tires such as motor vehicles or carriers, the retreading process is usually adopted to put them into recycling again. In the existing tire retreading equipment, the vulcanized tread rubber is generally polished by a special grinding device for processing the tread rubber, so as to complete the subsequent production process of applying the middle pad rubber and laminating the carcass.

At present, the tread grinding production line includes multiple compaction and deviation correction devices, as well as grinding devices, drying devices and winding and rolling devices set up on the conveyor line in sequence. The tread rubber needs to be on multiple conveyor lines before and after grinding. Reverse delivery. The existing reversing method is to manually drag the tread rubber on different conveying lines, which is time-consuming and laborious, and will cause the tread rubber to deflect at a relatively large angle.

Moreover, it is also easy to cause the tread rubber to be partially pulled and deformed, thereby affecting the subsequent bonding operation with the carcass.

Utility model content

The reversing device of the tread grinding machine described in the utility model is to solve the above-mentioned problems by adopting a mechanical reversing derivation structure to complete 180° reversing on different conveying lines for the tread rubber.

The design purpose of the utility model is to realize the reversing of the tread rubber stably and with less resistance, and keep relatively parallel with the conveying line after the reversing, which is beneficial to the follow-up deviation correction operation of the tread rubber.

The purpose of the design is also to ensure that the tread rubber will not be pulled or partially deformed during the reversing process, so as to ensure the subsequent bonding quality with the carcass.

In order to achieve the above design purpose, the reversing device of the tread sanding machine mainly has the following structure:

a rack disposed vertically between the first conveyor line and the second conveyor line,

A group of photoelectric switches set at both ends of the rack,

The traveling mechanism that reciprocates between the above photoelectric switches,

A reversing paddle that is connected to the running gear and extends vertically downwards.

As mentioned above, the reversing lever is driven by the walking mechanism to transport and transfer the tread rubber between the first conveying line and the second conveying line, since the reversing lever acting on the tread rubber can The rubber exerts a suitable thrust, so the tread rubber changes smoothly, and is less likely to be pulled and partially deformed. The photoelectric switches at both ends of the frame monitor the moving position of the traveling mechanism respectively.

In order to further improve the balance performance of the reversing lever for pushing the tread rubber, a traveling mechanism with the following structure can be adopted. The traveling mechanism includes a pair of synchronous pulleys driven by a geared motor and connected by a synchronous belt.

In order to improve the derivation stability of the tread rubber and avoid collisions during the reversing process, a carriage can be fastened to the timing belt through a pressure plate, and a cylinder is installed on the carriage and laterally connected to the reversing belt. to the lever.

When the photoelectric switch detects that the tread rubber has reached the reversing station, the cylinder drives the reversing lever to extend out, and the reversing lever applies a lateral thrust to the tread rubber driven by the synchronous belt and the carriage, and is accompanied by the tire. The top glue moves to another conveyor line.

After the reversing of the tread rubber is completed, the reversing dial is reset along with the synchronous belt and the carriage, and the cylinder drives the reversing rod to shrink upwards and reset.

In order to further ensure that the tread rubber does not deflect during the steering process, the reversing lever is buckled laterally on the vertical linear guide rail installed on the carriage, and a rubber block is provided at the end of the reversing lever.

The cylinder vertically drives the reversing lever to extend downwards, and the reversing lever applies a lateral thrust to the tread rubber horizontally to ensure that the tread rubber as a whole realizes 180° reversing.

The rubber block arranged at the end of the reversing lever can also play a protective role in buffering the impact force between the tire and the tread rubber.

The sliding frame is buckled on a straight line guide rail provided along the lateral ends of the frame, so as to ensure that the traveling path of the sliding frame is a horizontal straight line.

A drag chain parallel to the above-mentioned linear guide rail is installed on the frame to accommodate equipment such as power lines and gas pipes for the cylinder to work in the drag chain.

As mentioned above, the reversing device of the tread grinding machine of the present invention has the following advantages:

1. The mechanical reversing derivation structure is adopted to relieve the heavy manual operation, which is beneficial to improve production efficiency and reduce the load of operators.

2. It can smoothly realize 180° reversing of tread rubber on different conveying lines, and the reversing deviation is small.

3. The tread rubber will not be pulled or partially deformed during the reversing process, which is conducive to improving the subsequent bonding quality with the carcass.

Description of drawings

Now in conjunction with accompanying drawing, the utility model is described further

Fig. 1 is a partial schematic diagram of a tread sanding machine applying the reversing device of the present invention;

Fig. 2 is a schematic structural view of the reversing device of the tread sanding machine;

Fig. 3 is the downward structural diagram of Fig. 2;

As shown in Figure 1 to Figure 3, cylinder 1, linear guide rail 2, reversing lever 3, gear motor 4, synchronous belt 5, synchronous pulley 6, pressure plate 8, drag chain 9, carriage 10, linear guide rail 11, Photoelectric switch 12, photoelectric switch 13, rubber block 15, frame 30, first conveying line 40, second conveying line 50, reversing device 60.

Detailed ways

Embodiment 1, as shown in Figures 1 to 3, the tread sanding machine using the reversing device of the present invention is vertically provided with 3 groups of reversing lines between the first conveying line 40 and the second conveying line 50 device 60.

Each group of reversing devices 60 has the same structure, and respectively has a frame 30 , a photoelectric switch 12 and a photoelectric switch 13 arranged at both ends of the frame 30 .

A deceleration motor 4 is arranged between the photoelectric switch 12 and the photoelectric switch 13 , and the deceleration motor 4 drives and connects a pair of synchronous pulleys 6 through a synchronous belt 5 .

The carriage 10 is fastened to the timing belt 5 through the pressure plate 8. The cylinder 1 is mounted on the carriage 10 and connected to the reversing lever 3 laterally. Vertical linear guide 2.

A rubber block 15 is provided at the lower end of the reversing lever 3 .

The sliding frame 10 is buckled to the linear guide rails 11 arranged along the lateral ends of the frame 30 , and the drag chain 9 parallel to the linear guide rails 11 is installed on the frame 30 .

As the reversing device with the above structure, its operation process steps are as follows:

In the first step, when the tread rubber is transported from the first conveying line 40 to the reversing station, the photoelectric switch 12 sends a signal to the single-chip microcomputer, and the cylinder 1 drives down the reversing lever 3 to extend out, and the reversing lever 3 passes through Linear guide rail 2 descends vertically, and its rubber block 15 squeezes against the tread rubber side.

In the second step, the reduction motor 4 starts and drives the synchronous belt 5 and the two synchronous pulleys 6 to walk laterally.

At this time, the carriage 10 runs linearly along the linear guide rail 11 under the drive of the synchronous belt 5, and the reversing lever 3 pushes the tread rubber laterally.

In the third step, when the carriage 10 moves to the other side station of the frame 30, the photoelectric switch 13 is triggered (as shown by the dotted line in Fig. 2 and Fig. 3), and the photoelectric switch 13 outputs another delivery signal to the single-chip microcomputer, The cylinder 1 drives the reversing lever 3 to rise and reset, and at the same time, the reduction motor 4 reversely rotates to transport the carriage 10 back to the initial station.

In the fourth step, when the carriage 10 runs back to the photoelectric switch 12, the photoelectric switch 12 outputs a commutation completion signal to the single-chip microcomputer again, and the reduction motor 4 stops running, completing a commutation operation process cycle.

At the same time, the tread rubber is continuously conveyed forward from the second conveying line 50 to the next operation station.

Claims (6)

1. A reversing device for a tread sanding machine, characterized in that: it has a frame (30) vertically arranged between the first conveying line (40) and the second conveying line (50), A photoelectric switch (12) and a photoelectric switch (13) arranged at both ends of the frame (30), A traveling mechanism that reciprocates between the aforementioned photoelectric switches, and, The reversing paddle (3) that is connected to the running gear and extends vertically downwards. 2. The reversing device of the tread grinding machine according to claim 1, characterized in that: the traveling mechanism includes a pair of timing belts driven by a geared motor (4) and connected by a timing belt (5). wheel (6). 3. The reversing device of the tread grinding machine according to claim 2, characterized in that: a carriage (10) is fastened to the timing belt (5) through the pressure plate (8), and the cylinder (1) is installed on the slide On the frame (10) and laterally connect the described reversing paddle (3). 4. The reversing device of the tread grinding machine according to claim 3, characterized in that: the reversing lever (3) is laterally buckled on the vertical linear guide rail ( 2), the end of the reversing lever (3) is provided with a rubber block (15). 5. The reversing device of the tread grinding machine according to claim 4, characterized in that: the sliding frame (10) is buckled on the linear guide rails (11) provided along the lateral ends of the frame (30). 6. The reversing device of the tread sanding machine according to claim 5, characterized in that a drag chain (9) parallel to the linear guide rail (11) is installed on the frame (30).

Images