Water Fast Cooling PVC PU Conveyor Belt Hot Splicing Joint Machine

The combination rubber conveyor belt joint machine produced by our factory is mainly made of high-strength aluminum alloy, which has high strength and is easy to handle. The sheet electric heating element heating has the characteristics of stable operation, high thermal efficiency, and uniform temperature. This machine is equipped with a lightweight fully automatic electric control box, and the pressure system provides a uniform pressure of 0-2Mpa, making it easy to operate.

Widely used in various conveyor belt joints and repairs in industries such as metallurgy, mining, cement, power plants, ports, building materials, and chemical engineering industry.

Ⅰ  Usage of Vulcanizer

ST electric rubber belt vulcanizing machine (hereinafter referred to as vulcanizing machine) is small in size and light in weight. It is powered by a regular three-phase power supply, with a uniform hot plate temperature and a water pressure system supply (0-1.8MPa) of uniform pressure. It is equipped with a lightweight fully automatic electric control box. The connection between the electric control box and the host machine is completed by integrated plugins and multi-core cables, making it easy to operate and reliable in operation. Currently, it is widely used for on-site vulcanization bonding of canvas, nylon, and steel rope core transportation tapes in metallurgical, mining, power plants, ports, building materials, chemical and other environments where there is no explosive gas or harmful gas that can corrode metals. It is also suitable for vulcanization joints of special performance tapes such as anti-corrosion and heat resistance.

The quality of the adhesive tape joint directly affects the working efficiency and service life of the adhesive tape, especially for long-distance and high-strength transportation belts. Therefore, the ST electric rubber belt vulcanizer is an indispensable auxiliary equipment in the current adhesive tape transportation machinery.

Ⅱ  Technical Data

1. vulcanizing pressure: 1.5MPa

2. vulcanizing temperature: 145 ℃

3. Surface temperature difference of vulcanized plate: ± 3 ℃

4. The heating time (from room temperature to 145 ℃) shall not exceed 50min

5. Power supply voltage: 380V, 50Hz,

6. Electric control box output power: 36KW,

7. Temperature adjustment range: 0-200 ℃,

8. Timing adjustment range: 0-59 minutes,

9. After applying pressure of 0.8 MPa to the upper and lower heating plates, the gap should not exceed 0.5mm;

 Ⅲ  Main Structure

The vulcanization machine consists of a main machine (1. rack, 2. clamping device, 3. pad iron, 4. screw, 5. nut, 6. washer, 9. insulation board, 10. upper heating board, 14. lower heating board, 15. water pressure board), 7. high-pressure hose, 8. pressure testing pump, 11. secondary cable, 12. electric control box, 13. primary cable. Please refer to Figure 1 for details. 

Ⅳ  Installation & Use of Vulcanizer

The vulcanization mechanism is lightweight and can be easily moved by manual labor. Before installation, it is necessary to consider the convenience of the power supply and operating space. When constructing on the conveyor, a platform should be built with sleepers. The requirements depend on the location of the vulcanization tape and the number of vulcanization machines used simultaneously. Before construction, please prepare tools, rubber materials, 0~200 ℃ mercury thermometers, and other spare parts for handling the belt.

The installation of the vulcanization machine follows the following steps:

1. Place the lower rack at a longitudinal angle of 70 ° with the tape on the platform. See Figure 2

2. Place the water pressure plate on the lower frame. See Figure 3

3. Put the down heating plate on the hydraulic plate uniformly around it, with its working side upwards.(see fig.4)

4. Put the joint which has been processed according to the vulcanized technology, on the down heating plate,(if several vulcanizers are united, then a piece of about 0.3mm copper should be placed on the gap of two vulcanizers} meanwhile, the back-up iron plates are placed bilaterally (the iron plates are prepared by customers self, which the about 75mm width of iron plates can be used, but its thicknessis thiner than that of the rubber belt in 0.5--1mm, and its length is longer than that of the vulcanizer in about 700mm). The clamp mechanisms regulate the distance between the two back-up iron plates to keep the same width with the belt.(see fig.5)

5.Put the heating place on the joint which the working surface is connected with the joint, and keep the uniform with the down heating plate. If several vulcanizers are united, then a piece of about 0.3mm copper should be placed on the gap of two vulcanizers. (see fig.6)

6.Put the heatproof plate on the up heating plate, and then put the frame on

the heatproof plate which keeps the uniform with the down frame. Mount the bolts and washers and screw the nuts in moment of force about 30kg-M.

7． Connect the control panel and the heating plates with the secondary cables,and connect the power supply with the primary cable.

8. Connect the hydraulic plate and the pressure-testing pump with a high-pressure soft rubber pipe.

Ⅴ  Operating Procedure of Vulcanizer

1. Primary power supply

2. Lower board power supply

3. Upper board power supply

4. Upper board current indication

5. Upper board control switch

6. Upper plate thermometer

7. Lower board current indication

8. Lower board control switch

9. Lower plate thermometer

10. Voltage indication

11. Manual and automatic transfer switch

12. Upper board heating indication

13. Lower board heating indication

14. End of vulcanization indication

15. Primary power indicator

16. Automatic air leakage switch

17. Fusing tube

18. Vulcanizing time switch

19. Timer

20. Grounding screw

1. Turn the thumb wheels 6 and 9 to set the vulcanization temperature (145 degrees)

2. Adjust 19 to set the vulcanization insulation time and set 18 to the "OFF" position;

3. Turn on the power, 15 lights up. Close 16 and 10 with reading indication;

4. Rotate 5, 8, 12, and 13 to light up respectively;

5. 6 and 9 green lights are on. Use a pressure testing pump to inject water into the water pressure plate to a pressure of 1.5Mpa. When the temperature reaches the set value, 12 and 13 indicate, Lights 6 and 9 are off, green lights are off, and red lights are on. When all 6 and 9 red lights are on, place 18 in the "ON" position. (At this point, maintain a constant temperature until the end of vulcanization). When timer 19 get to the preset time , the secondary power supply will be automatically cut off, and the 14 light will be on, indicating the end of vulcanization.

6. If a certain instrument is damaged during the vulcanization process, it can be rotated 11 to the manual position,

All instruments are ineffective. The temperature of the hot plate can be read from a glass thermometer and maintained at a constant temperature through manual control of 5 and 8 to complete the vulcanization process. When in manual position, leakage protection does not work. The main grounding wire must be reliable and firm.

Ⅵ Maintenance and upkeep of vulcanization machine

1. Before use, the insulation resistance of the hot plate should be checked. If it is too low, it should be dried with electricity until the insulation value reaches 50M Ω or above before use;

2. During the use and transportation process, handle with care and operate in a civilized manner;

3. If working in the field, reliable waterproof and rainproof measures should be taken to prevent rainwater from invading and dampness;

4. After use, it should be placed in a warehouse with good air circulation, relative humidity not exceeding 85%, and not affected by rain or snow. The bottom should be padded with sleepers, and it is strictly prohibited to place it directly on the ground.

Below are some often use models for your choice. 

We can tailor make machine according to customers' technical requirements or special work needs. 

Just feel free to contact us.  We'll make a best proposal with most reasonable price. 

Project in abroad for reference:

Reference video on Youtube: