Belt replacement system and belt replacement method

Abstract

The invention provides a belt replacement system and a belt replacement method, and relates to the field of belt replacement, according to the scheme, the belt replacement system comprises a first rubber roll frame and a second rubber roll frame which are linearly arranged in the length direction of a belt, the first rubber roll frame is used for installing a new belt roll, and the second rubber roll frame is used for winding an old belt; the first film frame and the second film frame each comprise a rotationally-arranged supporting roller, the supporting rollers are detachably arranged on the first film frame or the second film frame, a driving motor is further arranged on the second film frame, and the driving motor can drive the supporting rollers to rotate. The old belt can be conveniently recycled, the labor efficiency is low, and the replacement efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of belt replacement, and more particularly to a belt replacement system and belt replacement method. Background Technology

[0002] Belt conveyors are a common material transport equipment. Due to long-term operation and wear and tear on the belt surface caused by materials, belts are inevitably damaged. When the belts reach the end of their service life, in order to avoid affecting production and safety hazards, the belts on the belt conveyors must be replaced at regular intervals.

[0003] In the prior art, a method for quickly changing belts is provided, in which a return winch is installed at an appropriate position behind the tail deflector of the belt conveyor and a traction wire rope is wound around it. The new high-strength conveyor belt is mounted on the mine flatbed car on the ground, folded and arranged, and secured with steel wire rope. It is then transported from the auxiliary shaft to the mine tail end, arranged, and the new high-strength conveyor belt ends are connected. The belts are then vulcanized using a vulcanizing machine. The head (point A) of the vulcanized new high-strength conveyor belt is connected to the upper layer of the old belt using a belt clamp. The lower layer of the old conveyor belt at the tail end is connected to the traction steel wire rope of the return winch using a clamp. The return winch steel wire rope (two 1.5-meter-long channel steel sections) is tightened. Then, the old belt is cut at the tail end of the conveyor belt with a cutter, the cut point being between the belt clamp and the clamp. The belt motor and the return winch are started (the return winch pulls backward), maintaining a roughly consistent speed between the two motors. The new belt follows the old belt upwards, while the lower layer of the old belt is pulled downwards by the return winch. As it is pulled downwards, it is simultaneously placed onto the empty mine flatbed car. (200...) Cut the car when it's about 1 meter long, secure it, push it to one side, and then replace it with an empty mining flatbed car until all the cars have been replaced. Use a vulcanizing machine to vulcanize the last joint, adjust the belt tensioning device, and then you can start a trial run.

[0004] When using the above technical solution, when pulling the old conveyor belt, it is necessary to use a winch to pull the mine flatcar, then manually place the pulled-down old conveyor belt onto the mine flatcar, and then cut the old conveyor belt at the set length before installing another empty mine flatcar. This results in two problems: firstly, the old conveyor belt takes up a lot of space when laid flat, the recycling labor intensity is high and the transportation efficiency is low; secondly, it is necessary to place the old conveyor belt onto the flatcar and cut it at the corresponding length, which involves a lot of labor. All of these factors cause the technical problems of high labor intensity and low replacement efficiency in conveyor belt replacement. Summary of the Invention

[0005] To address the technical problems of low efficiency and high labor intensity in existing belt replacement systems, this invention provides a belt replacement system and method that facilitates the recycling of old belts, reduces labor efficiency, and increases replacement efficiency.

[0006] In a first aspect, the present invention provides a belt replacement system to solve the above-mentioned technical problems, including a film roll holder 1 and a film roll holder 2 arranged in a straight line along the length of the belt. The film roll holder 1 is used to install a new belt roll, and the film roll holder 2 is used to wind an old belt. Both the film roll holder 1 and the film roll holder 2 include a rotatably mounted support roller. The support roller is detachably mounted on the film roll holder 1 or the film roll holder 2. The film roll holder 2 is also equipped with a drive motor, which can drive the support roller to rotate.

[0007] This invention, by setting up a self-driving film roll holder, can simultaneously pull and recycle the old belt, facilitating the storage and transportation of the old belt. At the same time, it does not require manual intervention, saving a lot of labor, greatly reducing labor intensity, improving the efficiency of belt replacement, and reducing the space occupied by the old belt.

[0008] Furthermore, it also includes a vulcanizing machine, which is located on the side of the film frame one away from the film frame two.

[0009] Furthermore, both the first and second film roll holders include a bracket, which includes two opposing support columns. Each of the two support columns is provided with a clamp assembly, which includes a fixing member and a locking member. The fixing member is disposed on the upper part of the support column with its opening facing upward. Both ends of the support roller are rotatably disposed within the cavity formed by the locking member and the fixing member. The fixing member and the locking member are detachably connected.

[0010] This invention improves replacement efficiency by facilitating the disassembly and assembly of the support rollers through the inclusion of clamp components.

[0011] Furthermore, both ends of the support roller located on the first film holder are provided with limiting surfaces. The limiting surfaces have a conical structure, and the narrow end of the limiting surface is close to the support column. The end of the support roller located on the second film holder is connected to the drive motor, and the drive motor is located outside the corresponding support column.

[0012] This invention can prevent the axial movement of the support roller by setting a limiting surface, thus avoiding the new belt from running off-center.

[0013] Furthermore, a limiting disk 1 and a limiting disk 2 are respectively provided at both ends of the support roller located on the second film frame, and the limiting disk 2 is detachably connected to the corresponding support roller.

[0014] The present invention can prevent the old belt from deviating when it is wound on the support roller by setting a first limiting plate and a second limiting plate.

[0015] Furthermore, it also includes two reversing roller sets, which can be mounted on the conveyor frame of the belt conveyor, and the film roll holder and the vulcanizing machine can be located between the two reversing roller sets.

[0016] This invention enhances the support for both new and old belts by setting up two reversing roller sets, thereby improving the stability of belt movement.

[0017] Furthermore, the first film rack, the second film rack, and the vulcanizing machine are all movably mounted on the ground, and the moving direction of the first film rack, the second film rack, and the vulcanizing machine is consistent with the arrangement direction of the multiple parallel belt conveyors.

[0018] This invention improves the utilization rate of the system by enabling multiple belt conveyors to share a single system by allowing the film roll holder one, the film roll holder two, and the vulcanizing machine to move along the direction perpendicular to the length of the belt.

[0019] Secondly, the present invention also provides a belt replacement method, employing the above-mentioned belt replacement system, comprising the following steps: S01: Install the belt roll containing the new belt onto the film roll holder one; S01: Move the first film roll holder, the second film roll holder, and the vulcanizing machine to the belt conveyor where the belt needs to be replaced, and position the first film roll holder and the vulcanizing machine between the two reversing roller groups; S02: Cut the old belt located between the two reversing roller groups to form two joints, A and B. Joint A is connected to the support roller of the second film frame, and joint B is disconnected from the beginning joint of the belt roll. S03: Start the motor and drive motor of the belt conveyor, the old belt is continuously wound onto the corresponding support roller, and the new belt is continuously pulled onto the belt conveyor; S04: When the joint B of the old belt is wound onto the old belt roll, disconnect the joint B of the old belt from the beginning joint of the new belt, and vulcanize the beginning joint of the new belt with the end joint or the newly cut joint through the vulcanizing machine. S05: Adjust the tensioner on the belt conveyor to ensure that the tension of the new belt is up to standard.

[0020] Furthermore, S03 includes the following steps: S031: When the belt roll is used up but the old belt has not been completely replaced, move the film roll holder to the side of the belt conveyor where the belt needs to be replaced; S031: Remove the corresponding support roller and install the second belt roll. S032: After installation, push the film roll holder back to the position for replacing the belt; S033: Connect the starting joint of the second belt roll after replacement to the ending joint of the new belt roll already on the belt conveyor using the vulcanizing machine. S034: Repeat S031 to S033 until the old belt is completely replaced.

[0021] As can be seen from the above technical solutions, the present invention has the following advantages: This invention provides a belt replacement system and method. By incorporating a self-driving film roll holder (II), the old belt can be wound and retracted simultaneously with the pulling action, facilitating its storage and transportation. This eliminates the need for manual intervention, significantly reducing labor intensity and improving belt replacement efficiency, while also minimizing the space occupied by the old belt. The inclusion of clamp components facilitates the disassembly and assembly of the support rollers, further enhancing replacement efficiency. The presence of limiting surfaces prevents axial movement of the support rollers, preventing the new belt from deviating. Limiting discs (I and II) prevent the old belt from deviating during winding on the support rollers. Two directional roller sets enhance support for both the new and old belts, improving belt movement stability. By allowing the film roll holder (I), film roll holder (II), and vulcanizing machine to move along a dimension perpendicular to the belt length, multiple belt conveyors can share a single system, improving system utilization. Attached Figure Description

[0022] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention.

[0024] Figure 2 This is a schematic diagram of the track, drive assembly, conveyor support, and vulcanizing machine in Embodiment 1 of the present invention.

[0025] Figure 3 This is a schematic diagram of the structure of film holder two in Embodiment 1 of the present invention. Figure 1 .

[0026] Figure 4 This is a schematic diagram of the structure of film holder two in Embodiment 1 of the present invention. Figure 2 .

[0027] Figure 5 This is a schematic diagram of the support roller of the film roll holder 2 in Embodiment 1 of the present invention.

[0028] Figure 6This is a schematic diagram of the structure of the film holder in Embodiment 1 of the present invention.

[0029] Figure 7 This is a schematic diagram of the clamping tool in Embodiment 2 of the present invention.

[0030] In the diagram: 1. Old belt; 2. Film roll holder 2; 201. Support rod; 202. Roller; 203. Support column; 204. Base frame; 205. Support roller; 206. Drive motor; 207. Limiting plate 1; 208. Limiting plate 2; 209. Limiting surface; 3. Conveyor frame; 4. Film roll holder 1; 5. Belt roll; 6. Vulcanizing machine; 7. Reversing roller group; 8. Track; 9. Clamp assembly; 901. Locking component; 902. Fixing component; 10. New belt; 11. Connecting plate; 12. Drive assembly; 13. Platform; 14. Anchor bolt; 15. Locking seat.

[0031] Example To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0032] Example 1 like Figure 1 and Figure 2 As shown, this embodiment provides a belt replacement system, including a film roll holder 4 and a film roll holder 2 arranged in a line along the belt length direction. The film roll holder 4 is used to install a new belt roll 5, and the film roll holder 2 is used to wind the old belt 1. Both the film roll holder 4 and the film roll holder 2 include a rotatably mounted support roller 205. The support roller 205 is detachably mounted on the film roll holder 4 or the film roll holder 2. The film roll holder 2 is also equipped with a drive motor 206, which can drive the support roller 205 to rotate. To facilitate belt vulcanization connection, this embodiment also includes a vulcanizing machine 6, which is located on the side of the film roll holder 4 away from the film roll holder 2.

[0033] This embodiment, by setting up a self-driving film rack 2, can achieve the winding and recycling of the old belt 1 while pulling it, which facilitates the storage and transportation of the old belt 1. At the same time, no manual intervention is required, saving a lot of labor, greatly reducing labor intensity, improving the efficiency of belt replacement, and reducing the space occupied by the old belt 1.

[0034] To facilitate the replacement of the new belt reel 5 and the removal of the old belt reel 5, such as Figures 3 to 6As shown, in this embodiment, both the film holder 4 and the film holder 2 include a support frame. The support frame includes a horizontally arranged base frame 204, two opposing support columns 203 on the base frame 204, and a support rod 201 between the support columns 203 and the base frame 204. Clamping assemblies 9 are respectively provided on the two support columns 203. Each clamping assembly 9 includes a fixing member 902 and a locking member 901. The fixing member 902 has a semi-circular structure and is welded upwards to the upper part of the support column 203. The locking member 901 has a semi-circular receiving cavity. The two ends of the support roller 205 are rotatably mounted on the locking member 901 and the fixing member 901, respectively. Within the cylindrical cavity formed by the locking member 901 and the fixing member 902, the diameter of the end of the support roller 205 is smaller than the diameter of the circular cavity formed by the locking member 901 and the fixing member 902 to ensure that the support roller 205 can rotate smoothly. Wear-resistant pads are provided on the inner surfaces of both the fixing member 902 and the locking member 901. The wear-resistant pads are made of Babbitt rubber and gold. The fixing member 902 and the locking member 901 are connected and detached by bolts at both ends. During installation, the support roller 205 is hoisted so that its end is placed horizontally within the corresponding fixing rod, and then the locking member 901 is installed using bolts. The support roller 205 of the film roll holder 4 is a non-powered roller, driven by the rotation of the belt roll 5. To prevent axial transmission, in this embodiment... Both ends of the support roller 205 located on the film holder 4 are provided with limiting surfaces 209. The limiting surfaces 209 have a conical structure, and the narrow end of the limiting surface 209 is close to the support column 203. In this way, the diameter of the middle part of the support roller 205 is larger than the diameter of the circular cavity formed by the locking member 901 and the fixing member 902. Due to the limiting effect of the limiting surfaces 209, the support roller 205 will not have a large degree of axial movement, improving the reliability of the support belt roll 5. Furthermore, the end of the support roller 205 located on the film holder 2 is provided with a blind hole. The motor shaft of the drive motor 206 extends into the blind hole and is connected to the blind hole through a flat key. 06 is mounted on the outside of the corresponding support column 203 by bolts and mounting bases. Through the action of the drive motor 206, the axial movement of the support roller 205 on the film roll holder 2 can be prevented. Furthermore, in order to prevent the old belt 1 from running off-center when winding, the two ends of the support roller 205 on the film roll holder 2 are respectively provided with a limiting plate 1 207 and a limiting plate 208. The limiting plate 208 is detachably connected to the corresponding support roller 205. The limiting plate 208 includes two semi-circular ring structures connected by bolts. The outer circular surface of the end of the support roller 205 is provided with a corresponding mounting groove. The two semi-circular ring structures can be inserted into the mounting groove and then connected by bolts.

[0035] To achieve support for both the old and new belts 1, such as Figure 1As shown, the system also includes two reversing roller groups 7, which can be installed on the conveyor frame 3 of the belt conveyor. The film frame 4 and the vulcanizing machine 6 can be located between the two reversing roller groups 7. Specifically, the two reversing roller groups 7 are roller group one and roller group two. Roller group one is located at the end away from the film frame 4. Roller group one includes a lower roller one and an upper roller one. The lower roller one and the upper roller one are rotatably installed on the conveyor frame 3 of the belt conveyor through corresponding supports. The belt is S-shaped and passes over the two lower roller one and the upper roller one by the vulcanizing machine 6. Roller group two is located at the end close to the film frame 4. Roller group two includes a lower roller two, an upper roller two and a lower roller three. The lower roller three is close to the film frame 4. The lower roller two, the upper roller two and the lower roller three are rotatably installed on the conveyor frame 3 of the belt conveyor through corresponding supports. The belt passes through the lower roller two, the upper roller two and the lower roller three in sequence from the conveyor frame 3 to the film frame 2.

[0036] In many applications, belt conveyors transport goods overhead, and multiple belt conveyors are arranged in parallel for transport. To enable multiple belt conveyors to share the same system, such as... Figure 1 and Figure 2 As shown, in this embodiment, the film rack 1 4 and the film rack 2 are both movably mounted on the ground. The moving direction of the film rack 1 4, the film rack 2, and the vulcanizing machine 6 is consistent with the arrangement direction of the multiple parallel belt conveyors. In this embodiment, the film rack 1 4 and the film rack 2 are each movably mounted on a track group. Each track group includes two tracks 8. The vulcanizing machine 6 is movably mounted on a platform 13 via the corresponding tracks. The platform 13 is located on the ground, and the platform 13 allows the vulcanizing machine 6 to be at a higher height, facilitating vulcanizing operations. A drive assembly 12 is provided at one end of the track group, and the drive assembly 12 is connected to the film rack 1 4, the film rack 2, or the vulcanizing machine 6. With this configuration, multiple belt conveyors can share this system, greatly improving the utilization rate of the system. Meanwhile, with the assistance of track 8 and drive assembly 12, movement is very convenient, greatly improving work efficiency. Specifically, drive assembly 12 includes a servo motor, which is mounted on a support plate at the end of the corresponding track group. The servo motor is connected to a chain drive assembly. The driving sprocket and driven sprocket of the chain drive assembly are both located at the two ends of the track group. The driving sprocket and driven sprocket are surrounded by a chain, which is connected to the base frame of film frame 4 or film frame 2. The vulcanizing machine 6 has four wheels at the bottom, and a hub motor is mounted on the front wheel. The hub motor drives the vulcanizing machine 6 to move along the track on the platform. Furthermore, to prevent the base frame 204 from moving under external force after it has been moved into place, anchor rods 14 are rotatably mounted on both sides of the base frame through pins. The other end of the anchor rod 14 is connected to the locking seat 15 on the ground by bolts.

[0037] Example 2 This embodiment provides a belt replacement method, using the belt replacement system of Embodiment 1, including the following steps: S01: Install the belt roll 5 containing the new belt 10 onto the film roll holder 4; S01: Move the first film frame 4, the second film frame 2, and the vulcanizing machine 6 to the belt conveyor where the belt needs to be replaced, and position the first film frame 4 and the vulcanizing machine 6 between the two reversing roller groups 7; S02: Cut the old belt 1 located between the two reversing roller groups 7 to form two joints A and B. Joint A is connected to the support roller 205 of the film roll frame 2, and joint B is disconnected from the beginning joint of the belt roll 5. S03: Start the motor and drive motor 206 of the belt conveyor, the old belt 1 is continuously wound onto the corresponding support roller 205, and the new belt 10 is continuously pulled onto the belt conveyor; S04: When the joint B of the old belt 1 is wound onto the old belt 1 roll, disconnect the joint B of the old belt 1 from the starting joint of the new belt 10, and vulcanize the starting joint of the new belt 10 with the ending joint or the newly cut joint through the vulcanizing machine 6. S05: Adjust the tensioner on the belt conveyor to ensure that the tension of the new belt 10 is up to standard.

[0038] In S01, the corresponding support roller 205 is first inserted into the belt roll 5. The support roller 205 is installed with the help of a crane or gantry crane. After the support roller 205 is placed in place, the locking parts 901 at both ends are installed.

[0039] In S02, the B connector is connected to the starting connector of the new 10 rolls of belt via a clamping fixture, such as... Figure 7 As shown, the clamping fixture includes two connecting plates 11 arranged opposite each other. Bolt holes are provided on the connecting plates 11. During connection, through holes need to be provided at the B joint and the starting joint of the new belt 10 roll respectively to facilitate bolt installation. After connecting, the corresponding bolts are passed through and then tightened with nuts. Holes are drilled on the A joint and two traction ropes are inserted. The two traction ropes are respectively connected to the mounting holes on the first limiting plate 207 and the second limiting plate 208 (the mounting holes are located near the support roller 205). When the first limiting plate 207 and the second limiting plate 208 rotate, they drive the traction ropes to wrap around the support roller 205, thereby driving the old belt to wrap around the support roller 205 of the film roll holder 2. To reduce the load on the belt motor and drive motor 206, the new belt 10 rolls are often a part of the entire belt and need to be replaced section by section. Therefore, S03 includes the following steps: S031: When the belt roll 5 is used up but the old belt 1 has not been completely replaced, move the film roll holder 4 toward the belt conveyor side where the belt needs to be replaced. S031: Remove the corresponding support roller 205 and install the second belt roll 5. S032: After installation, push the film roll holder 4 back to the belt replacement position; S033: Connect the starting joint of the second belt roll 5 after replacement to the ending joint of the new belt roll 10 already on the belt conveyor via the vulcanizing machine 6. S034: Repeat S031 to S033 until the old belt 1 is completely replaced.

[0040] Similarly, in S03, when the diameter of the old belt roll on film holder 2 reaches the set value, and the old belt has not yet been replaced, in order to reduce the load, the old belt is first cut off, then film holder 2 is moved to the side of the belt conveyor where the belt needs to be replaced, the support roller 205 with the old belt roll is removed, a new support roller 205 is installed, and then film holder 2 is pushed back to its original position so that the end of the old belt is connected to the new support roller 205 through the traction rope, and the old belt is wound up again.

[0041] In S04, if the last section of the belt is replaced, the old belt 1 is replaced and the new belt 10 rolls are used up. The beginning joint of the new belt 10 and the end joint of the new belt 10 are vulcanized. If the new belt 10 rolls are not used up, they need to be cut. The beginning joint of the new belt 10 and the newly cut joint are vulcanized through the vulcanizing machine 6.

[0042] As can be seen from the above embodiments, the present invention has the following beneficial effects: 1. By setting up a self-driving film rack 2, the old belt 1 can be wound and recycled while being pulled, which facilitates the storage and transportation of the old belt 1. At the same time, no manual intervention is required, saving a lot of labor, greatly reducing labor intensity, improving the efficiency of belt replacement, and reducing the space occupied by the old belt 1. 2. The clamp assembly 9 facilitates the disassembly and assembly of the support roller 205, further improving replacement efficiency; 3. By setting the limiting surface 209, the axial movement of the support roller 205 can be prevented, thus avoiding the new belt 10 from running off-center; 4. By setting limit plate 1 207 and limit plate 208, the old belt 1 can be prevented from running off-center when it is wound on the support roller 205. 5. By setting two reversing roller groups 7, the support for the new belt 10 and the old belt 1 can be enhanced, thereby improving the stability of belt movement; 6. By setting the track 8, the film roll holder 4, the film roll holder 2, and the vulcanizing machine 6 have a dimension that can move along the vertical belt length direction, so that multiple belt conveyors can share a set of this system, thereby improving the utilization rate of this system.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A belt changing system, characterized in that, The device includes a film holder 1 (4) and a film holder 2 (2) arranged in a line along the length of the belt. The film holder 1 (4) is used to install a new belt roll, and the film holder 2 (2) is used to wind an old belt (1). Both the film holder 1 (4) and the film holder 2 (2) include a rotatably mounted support roller (205). The support roller (205) is detachably mounted on the film holder 1 (4) or the film holder 2 (2). The film holder 2 (2) is also equipped with a drive motor (206), which can drive the support roller (205) to rotate.

2. The belt replacement system as described in claim 1, characterized in that, It also includes a vulcanizing machine (6), which is located on the side of the film frame one (4) away from the film frame two (2).

3. The belt replacement system as described in claim 2, characterized in that, Both the film roll holder 1 (4) and the film roll holder 2 (2) include two support columns (203) arranged opposite to each other. Each of the two support columns (203) is provided with a clamp assembly (9). The clamp assembly (9) includes a fixing member (902) and a locking member (901). The fixing member (902) is arranged with its opening facing upward on the upper part of the support column (203). The two ends of the support roller (205) are respectively rotatably arranged in the cavity formed by the corresponding locking member (901) and the fixing member (902). The fixing member (902) and the locking member (901) are detachably connected.

4. The belt replacement system as described in claim 3, characterized in that, Both ends of the support roller (205) located on the first film frame (4) are provided with limiting surfaces (209). The limiting surfaces (209) are tapered. The narrow end of the limiting surfaces (209) is close to the support column (203). The end of the support roller (205) located on the second film frame (2) is connected to the drive motor (206). The drive motor (206) is located outside the corresponding support column (203).

5. The belt replacement system as described in claim 4, characterized in that, Limiting disk one (207) and limiting disk two (208) are respectively provided at both ends of the support roller (205) located on the film frame two (2). The limiting disk two (208) is detachably connected to the corresponding support roller (205).

6. The belt replacement system as described in claim 5, characterized in that, It also includes two reversing roller sets (7), which can be installed on the conveyor frame of the belt conveyor, and the film roll holder (4) and the vulcanizing machine (6) can be located between the two reversing roller sets (7).

7. The belt replacement system as described in claim 6, characterized in that, The film roll holder one (4), the film roll holder two (2), and the vulcanizing machine (6) are all movably set on the ground. The moving direction of the film roll holder one (4), the film roll holder two (2), and the vulcanizing machine (6) is consistent with the arrangement direction of the multiple belt conveyors arranged in parallel.

8. A method for replacing a belt, characterized in that, The belt replacement system as described in claim 7 includes the following steps: S01: Install the belt roll (5) containing the new belt (10) onto the film roll holder (4); S01: Move the first film frame (4), the second film frame (2) and the vulcanizing machine (6) to the belt conveyor where the belt needs to be replaced, and place the first film frame (4) and the vulcanizing machine (6) between the two reversing roller groups (7); S02: Cut the old belt (1) located between the two reversing roller groups (7) to form two joints, A and B. Joint A is connected to the support roller (205) of the second film frame (2), and joint B is disconnected from the beginning joint of the belt roll (5). S03: Start the motor and drive motor (206) of the belt conveyor, the old belt (1) is continuously wound onto the corresponding support roller (205), and the new belt (10) is continuously pulled onto the belt conveyor; S04: When the joint B of the old belt (1) is wound onto the old belt (1) roll, disconnect the joint B of the old belt (1) from the beginning joint of the new belt (10), and vulcanize the beginning joint of the new belt (10) with the end joint or the newly cut joint through the vulcanizing machine (6). S05: Adjust the tensioning wheel on the belt conveyor to ensure that the tension of the new belt (10) is qualified.

9. The belt replacement method as described in claim 8, characterized in that, S03 includes the following steps: S031: When the belt roll (5) is used up but the old belt (1) has not been completely replaced, move the film roll holder (4) toward the belt conveyor side where the belt needs to be replaced; S031: Remove the corresponding support roller (205) and install the second belt roll (5). S032: After installation, push the film roll holder (4) back to the position for replacing the belt; S033: Connect the starting joint of the second belt roll (5) after replacement to the end joint of the new belt roll (10) already on the belt conveyor through the vulcanizing machine (6). S034: Cycle through S031 to S033 until the old belt (1) is completely replaced.

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