Vulcanizing machine for manufacturing conveying belt and vulcanizing process of vulcanizing machine

Abstract

The vulcanizing machine comprises a machine body, a lower pressing plate fixedly connected to the top end of the machine body and an upper pressing plate located above the lower pressing plate, a supporting frame is arranged between the upper pressing plate and the lower pressing plate, a driving set is arranged on the machine body, and the driving set is connected with the machine body. The driving set is used for driving the upper pressing plate and the supporting frame to ascend and descend. According to the conveyor belt straightening device, before the conveyor belt is vulcanized by the upper pressing plate and the lower pressing plate, the bent conveyor belt can be gradually moved from the lower part through the rolling shafts to be straightened, so that the situation that vulcanization is affected due to the fact that the conveyor belt cannot be smoothly straightened due to stress bending of the conveyor belt when the joint part of the conveyor belt is pressed downwards by the upper pressing plate and the lower pressing plate is avoided; and the surface of the conveying belt and the conveying belt can be protected in a manner of straightening from the lower part.

Description

Technical Field

[0001] The invention relates to the technical field of conveyor belt vulcanization, in particular to a vulcanizing machine for conveyor belt manufacturing and a vulcanization process thereof. Background Art

[0002] Conveyor belt vulcanization refers to the process of chemically treating the joint part of the conveyor belt (especially the conveyor belt on the belt conveyor) to make the rubber molecular chain undergo chemical changes to form cross-links. It is used for the connection, repair and production of conveyor belts.

[0003] The vulcanization of conveyor belts must meet the corresponding temperature and pressure to achieve the vulcanization conditions. When vulcanizing the two ends of the existing conveyor belts, the conveyor belts need to be placed on the lower pressure plate and then pressed down by the upper pressure plate. However, in actual use, this direct downward pressure method is only suitable for conveyor belts with low toughness and thinness. For some thicker and tougher conveyor belts (due to the particularity of the material made of the conveyor belts, some conveyor belts will have higher elasticity and toughness, especially after use. After they are dismantled, the internal stress will be released due to the action of external forces, resulting in distortion and deformation, and will also cause bending and deformation due to different storage environments), the two ends are in a state of bending and even twisting tendency after dismantling. Therefore, when the two ends of the conveyor belt are placed on the lower pressure plate respectively, they will not be straightened on the lower pressure plate, such as Figure 1 As shown, in this state, the upper pressure plate descends to contact the conveyor belt and presses down. Due to the friction between the conveyor belt and the lower pressure plate and the stress of the conveyor belt, the conveyor belt cannot be directly in a straight state, but is partially bent or partially in a wavy state, which makes it impossible to smoothly vulcanize the two ends of the conveyor belt. Summary of the invention

[0004] The object of the present invention is to provide a vulcanizing machine for manufacturing conveyor belts and a vulcanizing process thereof, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vulcanizing machine for manufacturing conveyor belts, comprising a machine body, a lower pressing plate fixedly connected to the top of the machine body, and an upper pressing plate located above the lower pressing plate, a support frame is arranged between the upper pressing plate and the lower pressing plate, a driving group is arranged on the machine body, the driving group is used to drive the upper pressing plate and the support frame to rise and fall, a placing plate is arranged at both ends of the support frame, a clamping plate is fixedly connected above the placing plate, the two clamping plates are respectively fixedly connected to the left and right ends of the upper pressing plate, a straightening group is arranged at both ends of the support frame, and the straightening group is composed of two adjustment groups located in the front and rear directions of the support frame;

[0006] The adjusting group includes a connecting plate and a positioning rod slidably connected to the connecting plate, the connecting plate is slidably connected to the support frame, the connecting plate is slidably connected to the support frame, the connecting plate is slidably connected to the first wedge block in the vertical direction, a second wedge block is arranged below the first wedge block, the second wedge block is slidably connected to the connecting plate in the left and right directions, the second wedge block is slidably connected to the first rack rod in the vertical direction, the first rack rod is L-shaped and its top end is located at the top end of the first wedge block, the first wedge block is rotatably connected to the connecting rod, and the connecting rod is rotatably connected to the roller, the A torsion spring is sleeved on the rotating shaft of the roller, and the rotating shaft of the roller is fixedly connected with a first gear, the first gear is located at one side of the first rack rod, a sliding groove is provided on the positioning rod, and the side wall of the second wedge block is rotatably connected with a support rod, the top end of the support rod is located inside the sliding groove and is rotatably and slidingly connected to the sliding groove, a first spring is arranged above the top end of the support rod, the first spring is located inside the sliding groove and is fixedly connected to the top wall in the sliding groove, and a linear moving group is arranged on one side of the second wedge block, and the linear moving group is used to drive the connecting plate and the second wedge block to move.

[0007] As a further solution of the present invention, the linear movement group includes a second spring and a motor, the second spring is fixedly connected between the connecting plate and the side wall of the support frame, the motor is embedded in the second wedge block and its output end is fixedly connected to a second gear, the second gear is meshed with a second rack rod, and the second rack rod is fixedly connected to the support frame.

[0008] As a further solution of the present invention, an auxiliary roller is arranged on the side of the roller away from the positioning rod, the auxiliary roller is rotatably connected to a limiting member, the limiting member is slidably connected to a limiting slot, and a third spring is fixedly connected between the limiting slot and the limiting member.

[0009] As a further solution of the present invention, the positioning rods are all L-shaped.

[0010] As a further solution of the present invention, the lower pressure plate is U-shaped and has an L-shaped groove corresponding to the shape of the positioning rod opened therein, and a sealing block is fixedly connected to the positioning rod.

[0011] As a further solution of the present invention, the upper pressing plate is slidably connected to a telescopic plate, and a fourth spring is fixedly connected between the telescopic plate and the interior of the upper pressing plate.

[0012] As a further solution of the present invention, the driving group includes a first hydraulic rod and a second hydraulic rod, the first hydraulic rod is fixedly connected between the machine body and the support frame, the second hydraulic rod is fixedly connected to the support rod, the support rod is fixedly connected to the rear side wall of the support frame, and the bottom end of the second hydraulic rod is fixedly connected to the upper pressure plate.

[0013] A vulcanization process for manufacturing a conveyor belt, the process comprising the following steps:

[0014] Step 1: Pre-treat and mark the conveyor belt before vulcanization, and then align the marking position with the placement plate;

[0015] Step 2: The driving group controls the upper pressing plate to descend so as to clamp the conveyor belt through the clamping plate, and when the roller is straightened, the upper pressing plate is in contact with the upper part of the conveyor belt;

[0016] Step 3: The linear drive group controls the movement of the connecting plate to fit the upper part of the conveyor belt with the bottom of the upper pressure plate during the movement of the roller. After the connecting plate stops, the positioning rod resists and fixes the bottom end of the conveyor belt, and the first rack rod and the first gear are engaged to complete the giving way of the connecting rod and the roller. At this time, the auxiliary rollers provide auxiliary support for the conveyor belt.

[0017] Step 4: The support frame is controlled to descend by the driving group, and then the colloid is fully and evenly distributed by the expansion and contraction of the expansion plate when the colloid is injected;

[0018] Step 5: When the conveyor belt is removed, the positioning rod can be used to resist the conveyor belt from below to facilitate demoulding.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention can straighten the bent conveyor belt by gradually moving it from below through rollers before the upper pressing plate and the lower pressing plate vulcanize the conveyor belt, thereby preventing the conveyor belt from being smoothly straightened due to stress bending of the conveyor belt when the upper pressing plate and the lower pressing plate press down on the joint of the conveyor belt, thereby affecting vulcanization, and the surface of the conveyor belt and the conveyor belt can be protected by straightening it from below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the bending state of the conveyor belt before the conveyor belt is directly pressed down in the prior art;

[0022] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the positional relationship between the support frame and the connecting plate and between the roller and the positioning rod of the present invention;

[0024] Figure 4 It is a schematic diagram of the positional relationship between the positioning rod and the roller, and between the connecting plate and the second rack rod of the present invention;

[0025] Figure 5 is a side view of the first rack rod and the first gear of the present invention;

[0026] Figure 6It is a schematic diagram of the positional relationship between the limiting groove, the limiting member and the third spring of the present invention;

[0027] Figure 7 It is a schematic diagram of the positional relationship between the telescopic plate and the upper pressing plate of the present invention;

[0028] Figure 8 It is a schematic diagram of the positional relationship between the telescopic plate and the fourth spring of the present invention;

[0029] Fig. 9 Schematic diagram of the positional relationship between the L-shaped groove and the lower pressing plate of the present invention;

[0030] Fig.10 It is a process flow chart of the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Machine body; 2. Lower pressure plate; 3. Upper pressure plate; 4. Support frame; 5. Placement plate; 6. Clamp; 7. Connecting plate; 8. First wedge block; 9. Second wedge block; 10. First rack rod; 11. Connecting rod; 12. Roller; 13. Torsion spring; 14. First gear; 15. Positioning rod; 16. Support rod; 17. First spring; 18. Second spring; 19. Motor; 20. Second gear; 21. Second rack rod; 22. Auxiliary roller; 23. Limiting piece; 24. Third spring; 25. L-shaped groove; 26. Telescopic plate; 27. Fourth spring; 28. First hydraulic rod; 29. ​​Second hydraulic rod; 30. Support rod; 31. Limiting groove; 32. Sealing block. DETAILED DESCRIPTION

[0033] See also Figure 1-Figure 10 The present invention provides a technical solution: a vulcanizing machine for manufacturing conveyor belts, comprising a machine body 1, a lower pressing plate 2 fixedly connected to the top of the machine body 1, and an upper pressing plate 3 located above the lower pressing plate 2, a support frame 4 is arranged between the upper pressing plate 3 and the lower pressing plate 2, a driving group is arranged on the machine body 1, the driving group is used to drive the upper pressing plate 3 and the support frame 4 to rise and fall, a placing plate 5 is arranged at both ends of the support frame 4, a clamping plate 6 is fixedly connected above the placing plate 5, the two clamping plates 6 are respectively fixedly connected to the left and right ends of the upper pressing plate 3, a straightening group is arranged at both ends of the support frame 4, and the straightening group is composed of two adjustment groups located in the front and rear directions of the support frame 4;

[0034] The adjustment group includes a connecting plate 7 and a positioning rod 15 slidably connected to the connecting plate 7, the connecting plate 7 is slidably connected to the support frame 4, the connecting plate 7 is slidably connected to a first wedge block 8 in the vertical direction, a second wedge block 9 is arranged below the first wedge block 8, the second wedge block 9 is slidably connected to the connecting plate 7 in the left and right directions, the second wedge block 9 is slidably connected to a first rack rod 10 in the vertical direction, the first rack rod 10 is L-shaped and its top end is located at the top end of the first wedge block 8, the first wedge block 8 is rotatably connected to a connecting rod 11, the connecting rod 11 is rotatably connected to a roller 12, and the roller A torsion spring 13 is sleeved on the rotating axis of the shaft 12, and a first gear 14 is fixedly connected to the rotating axis of the roller 12. The first gear 14 is located on one side of the first rack rod 10. A slide groove is provided on the positioning rod 15. The side wall of the second wedge block 9 is rotatably connected to a support rod 16. The top end of the support rod 16 is located inside the slide groove and is rotatably and slidably connected to the slide groove. A first spring 17 is arranged above the top end of the support rod 16. The first spring 17 is located inside the slide groove and is fixedly connected to the top wall of the slide groove. A linear moving group is arranged on one side of the second wedge block 9, and the linear moving group is used to drive the connecting plate 7 and the second wedge block 9 to move.

[0035] like Figure 2-Figure 7 As shown:

[0036] Before vulcanizing the two ends of the conveyor belt, first clean the joints at both ends of the conveyor belt, and then mark them to facilitate positioning of the length of the joints. Then, the two ends of the conveyor belt are placed on the two placement plates 5 on the left and right sides, respectively, so that the marked parts of the conveyor belt are aligned with the placement plates 5. At this time, the ends will be vertical to one side of the positioning rod 15, and the vertical direction of the conveyor belt is consistent with the bending direction of the conveyor belt.

[0037] At this time, the roller 12 and the positioning rod 15 will be under the conveyor belt, and then the driving group will be started. When the driving group works, it will drive the upper pressure plate 3 to descend to the support frame 4. At this time, the clamping plate 6 will press the conveyor belt on the placement plate 5 from above. At this time, the placement plate 5 and the clamping plate 6 have completed the fixation of the conveyor belt. After that, the linear moving group is started, and the linear moving group will drive the connecting plate 7 to slide toward the middle along the support frame 4;

[0038] When the connecting plate 7 slides, it will drive the positioning rod 15 and the roller 12 to slide together. The height of the positioning rod 15 is lower than the roller 12, so when the roller 12 follows the movement of the connecting plate 7, it will contact the end of the curved conveyor belt from below, and when the roller 12 moves, it will gradually push the conveyor belt in the area where the roller 12 crosses from below to contact the bottom of the upper pressure plate 3, thereby straightening the conveyor belt. At this time, the top surface of the straightened conveyor belt will gradually contact the bottom of the upper pressure plate 3 until the connecting plate 7 moves to the limit position and stops. At this time, the linear movement group will drive the second wedge block 9 slides along the connecting plate 7. When the second wedge block 9 slides, the top end of the support rod 16 will slide along the slide groove on the positioning rod 15. At this time, the horizontal surface of the top end of the second wedge block 9 will slide while keeping in contact with the horizontal surface of the bottom end of the first wedge block 8. At this time, the support rod 16 will compress the first spring 17 and drive the positioning rod 15 to slide up along the connecting plate 7. After the connecting plate 7 slides up, it will contact the bottom of the end of the straightened conveyor belt and resist the end of the conveyor belt from below, so that the end of the conveyor belt can fit with the bottom of the upper pressure plate 3, and then the end of the conveyor belt is fixed at this position.

[0039] Then the second wedge block 9 continues to be driven by the linear moving group. At this time, the top end of the support rod 16 continues to slide up along the slide groove so that the first spring 17 is gradually squeezed. After the horizontal plane of the top end of the second wedge block 9 passes the horizontal plane of the bottom end of the first wedge block 8, the first wedge block 8 will drop and contact the inclined surface of the second wedge block 9. At this time, the connecting rod 11 and the roller 12 will both drop, and then disengage from the straightened conveyor belt. After the first wedge block 8 drops to the limit, the first rack rod 10 will move to the position of contact with the first gear 14 and mesh with it. Then, as the second wedge block 9 moves, the connecting rod 11 is driven to rotate ninety degrees. At this time, the torsion spring 13 will be compressed, and the connecting rod 11 and the roller 12 will rotate to one side of the upper pressure plate 3. Then the second wedge block 9 stops moving, and the linear moving group also stops working.

[0040] Then the driving group can drive the support frame 4 to descend to the limit position, at which time the lower pressing plate 2 and the upper pressing plate 3 will clamp one side of the two ends of the straightened conveyor belt, and then the vulcanization connection work can be carried out, and the area between the upper pressing plate 3 and the lower pressing plate 2 and the end of the conveyor belt is provided with a heating element for heating;

[0041] In the present invention, before the upper pressing plate 3 and the lower pressing plate 2 vulcanize the conveyor belt, the roller 12 can gradually move the curved conveyor belt from below to straighten it, thereby preventing the conveyor belt from being smoothly straightened due to stress bending of the conveyor belt when the upper pressing plate 3 and the lower pressing plate 2 press down on the joint of the conveyor belt, thereby affecting vulcanization;

[0042] Moreover, when the conveyor belt is straightened, it is straightened from the bottom, which has the following advantages:

[0043] 1. Protect the surface of the conveyor belt;

[0044] Because conveyor belts are usually used to transport materials, some materials or particles may adhere to their surface. If they are straightened directly from the top, these particles may scratch or wear the surface of the conveyor belt. Straightening from the bottom can avoid this situation because the bottom of the conveyor belt is usually cleaner and free of adhesion.

[0045] 2. Prevent the conveyor belt from breaking:

[0046] When the conveyor belt is twisted or deformed, its internal fiber structure may have been damaged to a certain extent. If it is forcefully straightened directly from the top, the damage may be further aggravated, or even cause the conveyor belt to break. However, straightening it slowly and evenly from the bottom will help to reduce the pressure on the conveyor belt fiber structure and release the internal stress slowly instead of instantly, thus reducing the risk of breakage.

[0047] After the vulcanization work is completed, the support frame 4 and the upper pressing plate 3 are respectively reset to the initial height by the driving group, and then the conveyor belt can be removed.

[0048] The linear movement group includes a second spring 18 and a motor 19. The second spring 18 is fixedly connected between the connecting plate 7 and the side wall of the support frame 4. The motor 19 is embedded in the second wedge block 9 and its output end is fixedly connected to a second gear 20. The second gear 20 is meshed with a second rack rod 21, and the second rack rod 21 is fixedly connected to the support frame 4.

[0049] like Figure 4 and Figure 5 As shown:

[0050] Before the conveyor belt is straightened, the connecting plate 7 is at the far right, and at this time the second spring 18 is in a state of being stretched to the limit. When straightening, the motor 19 is started, and the motor 19 drives the second gear 20 to rotate along the second rack rod 21. At this time, the connecting plate 7 can slide toward the middle along the support frame 4, and at this time the second spring 18 continuously pulls the connecting plate 7. When the connecting plate 7 moves to the left to the limit, it will contact the side wall of the support frame 4, and the connecting plate 7 cannot continue to move, and at this time the second spring 18 is in a state of not being stretched or compressed;

[0051] However, at this time, the motor 19 continues to rotate, and the second gear 20 will also mesh with the second rack rod 21 while rotating, and will drive the second wedge block 9 to slide to the left along the connecting plate 7, and the second rack rod 21 will also follow the second wedge block 9 to keep in contact with the top of the first wedge block 8 while moving to the left, but at this time, the horizontal plane of the top of the second wedge block 9 will be in contact with the horizontal plane of the bottom of the first wedge block 8, so the first wedge block 8 will not drop immediately at this time, and then push the positioning rod 1 through the support rod 16 and the first spring 17 5 rises to the position in contact with the end of the conveyor belt, thereby fixing the conveyor belt, and then the second wedge block 9 continues to move leftward, and its inclined surface will contact the inclined surface of the first wedge block 8, thereby causing the first wedge block 8 and the connecting rod 11 to descend, and when the connecting rod 11 descends to the limit, the second rack bar 21 will mesh with the first gear 14, thereby driving the connecting rod 11 and the roller 12 to rotate ninety degrees, and at this time the roller 12 will be on one side of the upper pressing plate 3, so as to make way when the upper pressing plate 3 and the lower pressing plate 2 are in contact;

[0052] After the upper pressing plate 3 and the lower pressing plate 2 have completed vulcanization of the conveyor belt, the upper pressing plate 3 and the lower pressing plate 2 are reset respectively and the conveyor belt is removed, and then the connecting plate 7 needs to be reset. At this time, the motor 19 rotates in the opposite direction to make the second gear 20 move to the right along the second rack rod 21. Because the second spring 18 is in an unstretched state at this time, the second wedge block 9 will first slide to the right along the connecting plate 7 when the motor 19 rotates. At this time, the first rack rod 10 will mesh with the first gear 14 to reset the connecting rod 11 and the roller 12, and then the second wedge block 9 will continue to move. The first wedge block 8 will be pushed to slide up and reset through its inclined surface, and at this time, the first wedge block 8 will also lift up the first rack rod 10, so that the first rack rod 10 can slide up along the second wedge block 9 until the top horizontal plane of the second wedge block 9 is at the bottom of the first wedge block 8. At this time, the support rod 16 and the positioning rod 15 will also be reset, and then the second wedge block 9 will forcibly pull the connecting plate 7 to move to the right and stretch the second spring 18. After the connecting plate 7 moves to the right to the initial position, the motor 19 stops rotating and is locked in this position. At this time, the connecting plate 7 can stay in this position.

[0053] Auxiliary rollers 22 are provided on the side of the roller 12 away from the positioning rod 15. The auxiliary rollers 22 are rotatably connected to the limiting members 23. The limiting members 23 are slidably connected to the limiting grooves 31. A third spring 24 is fixedly connected between the limiting grooves 31 and the limiting members 23.

[0054] like Figure 3 and Figure 6 As shown:

[0055] A limit piece 23 and an auxiliary roller 22 are provided on the right side of the roller 12, and the limit piece 23 is in contact with the side wall of the connecting rod 11 (the distance between the connecting rod 11 and the limit piece 23 is enlarged in the figure for reference effect), and the connecting rod 11 can only rotate in a single direction, so when the limit piece 23 contacts the connecting rod 11, the third spring 24 blocks the push of the limit piece 23, so that the limit piece 23 does not slide along the limit groove 31, and when the connecting plate 7 moves to the left, the limit piece 23 will follow the movement under the push of the third spring 24. When the limiting member 23 slides to the leftmost side of the limiting groove 31, the limiting member 23 cannot move further and stays at this position. At this time, the auxiliary roller 22 will support the bottom of the conveyor belt to prevent the middle part of the conveyor belt from falling, but the connecting plate 7 will continue to move at this time, and the distance between the auxiliary roller 22 and the roller 12 will gradually increase, and the connecting plate 7 will stop after moving to the limit position to the left, and then the second wedge block 9 will slide along the connecting plate 7 to drive the first gear 14 to rotate, thereby causing the connecting rod 11 and the roller 12 to rotate to one side;

[0056] When the connecting plate 7 moves to the right to reset, the roller 12 will first rotate to reset, and then after moving to contact with the limiting member 23, it will push the limiting member 23 to reset to the initial position.

[0057] The positioning rods 15 are all L-shaped.

[0058] like Figure 3-Figure 5 As shown:

[0059] The L-shaped positioning rod 15 can be used to fix the conveyor belt after it rises to contact the conveyor belt. Because the two ends of some conveyor belts are inclined and not all conveyor belts are aligned before vulcanization, when the positioning rod 15 is L-shaped, it is convenient to support and position the conveyor belt after it contacts the conveyor belt.

[0060] The lower pressing plate 2 is U-shaped and has an L-shaped groove 25 corresponding to the shape of the positioning rod 15 formed therein. A sealing block 32 is fixedly connected to the positioning rod 15 .

[0061] like Fig. 9 As shown:

[0062] When the conveyor belt is straightened, the positioning rod 15 is at the far left and is located directly above the L-shaped groove 25. The top of the conveyor belt will be in contact with the bottom of the upper pressing plate 3, and then the driving group drives the support frame 4 and the upper pressing plate 3 to descend to the limit position. At this time, the lower end of the conveyor belt will contact the lower pressing plate 2, and the positioning rod 15 will enter the inside of the L-shaped groove 25, and the L-shaped groove 25 will be closed by the sealing block 32, thereby preventing the colloid from flowing out when the colloid is subsequently injected between the two ends of the conveyor belt;

[0063] And through the setting of the positioning rod 15, it is also possible to push the connecting part of the conveyor belt from bottom to top after the conveyor belt is vulcanized and the support frame 4 is separated from the lower pressure plate 2, thereby facilitating the detachment of the conveyor belt.

[0064] The upper pressing plate 3 is slidably connected with a telescopic plate 26 , and a fourth spring 27 is fixedly connected between the telescopic plate 26 and the interior of the upper pressing plate 3 .

[0065] like Figure 7 and Figure 8 As shown:

[0066] Because the lower pressure plate 2 is U-shaped and can restrict the conveyor belt after the conveyor belt and the lower pressure plate 2 are fitted together, and the lower pressure plate 2 has a certain mold cavity function inside. When the support frame 4, the lower pressure plate 2 and the upper pressure plate 3 are fitted together, a closed mold cavity can be formed for the joint of the conveyor belt, and then the colloid (i.e., the raw material body) can be injected. During the colloid injection process, the telescopic plate 26 will be gradually squeezed so that the telescopic plate 26 can slide along the upper pressure plate 3 and compress the fourth spring 27. By injecting the colloid, the generation of internal air can be reduced, and by raising and lowering the telescopic plate 26, the colloid can be evenly distributed, thereby improving the efficiency of the vulcanization connection of the conveyor belt.

[0067] The driving group includes a first hydraulic rod 28 and a second hydraulic rod 29. The first hydraulic rod 28 is fixedly connected between the machine body 1 and the support frame 4. The second hydraulic rod 29 is fixedly connected to a support rod 30. The support rod 30 is fixedly connected to the rear side wall of the support frame 4. The bottom end of the second hydraulic rod 29 is fixedly connected to the upper pressure plate 3.

[0068] like Figure 2 and Figure 7 As shown:

[0069] The lifting and lowering of the support frame 4 is accomplished by the extension and retraction of the first hydraulic rod 28 , and the second hydraulic rod 29 is supported by the support rod 30 , and the upper pressing plate 3 and the support frame 4 are moved closer and farther away by the extension and retraction of the second hydraulic rod 29 .

[0070] A vulcanization process for manufacturing a conveyor belt, the process comprising the following steps:

[0071] Step 1: Pre-treat and mark the conveyor belt before vulcanization, and then align the marking position with the placement plate 6;

[0072] Step 2: The driving group controls the upper pressing plate 3 to descend so as to clamp the conveyor belt through the clamping plate 6, and the upper pressing plate 3 is fitted with the upper part of the conveyor belt when the roller is straightened;

[0073] Step 3: The linear drive group controls the connection plate 7 to move so that the upper part of the conveyor belt fits with the bottom of the upper pressure plate 3 during the movement of the roller 12. After the connection plate 7 stops, the positioning rod 15 fixes the bottom end of the conveyor belt, and the first rack rod 10 and the first gear 14 are engaged to complete the giving way of the connection rod 11 and the roller 12. At this time, the auxiliary roller 22 provides auxiliary support for the conveyor belt.

[0074] Step 4: The support frame 4 is controlled to descend by the driving group, and then when the colloid is injected, the colloid is fully and evenly distributed by the expansion and contraction of the expansion plate 26;

[0075] Step 5: When the conveyor belt is removed, the positioning rod 15 can resist the conveyor belt from below to facilitate demoulding.

Claims

1. A vulcanizing machine for manufacturing conveyor belts, comprising a machine body (1), a lower pressing plate (2) fixedly connected to the top of the machine body (1), and an upper pressing plate (3) located above the lower pressing plate (2), characterized in that: A support frame (4) is arranged between the upper pressing plate (3) and the lower pressing plate (2); a driving group is arranged on the machine body (1); the driving group is used to drive the upper pressing plate (3) and the support frame (4) to rise and fall; a placement plate (5) is arranged at both left and right ends of the support frame (4); a clamping plate (6) is fixedly connected above the placement plate (5); the two clamping plates (6) are respectively fixedly connected to the left and right ends of the upper pressing plate (3); a straightening group is arranged at both left and right ends of the support frame (4); the straightening group is composed of two adjustment groups located in the front and rear directions of the support frame (4); The adjustment group comprises a connecting plate (7) and a positioning rod (15) slidably connected to the connecting plate (7); the connecting plate (7) is slidably connected to the supporting frame (4); a first wedge block (8) is slidably connected to the connecting plate (7) in a vertical direction; a second wedge block (9) is arranged below the first wedge block (8); the second wedge block (9) is slidably connected to the connecting plate (7) in a left-right direction; a first rack rod (10) is slidably connected to the second wedge block (9) in a vertical direction; the first rack rod (10) is L-shaped and its top end is located at the top end of the first wedge block (8); a connecting rod (11) is rotatably connected to the first wedge block (8); a roller (12) is rotatably connected to the connecting rod (11); A torsion spring (13) is sleeved on the rotating shaft of the roller (12), and a first gear (14) is fixedly connected to the rotating shaft of the roller (12), and the first gear (14) is located on one side of the first rack rod (10). A sliding groove is provided on the positioning rod (15), and a support rod (16) is rotatably connected to the side wall of the second wedge block (9), and the top end of the support rod (16) is located inside the sliding groove and is rotatably and slidably connected to the sliding groove. A first spring (17) is arranged above the top end of the support rod (16), and the first spring (17) is located inside the sliding groove and is fixedly connected to the top wall of the sliding groove. A linear moving group is arranged on one side of the second wedge block (9), and the linear moving group is used to drive the connecting plate (7) and the second wedge block (9) to move.

2. A vulcanizing machine for manufacturing conveyor belts according to claim 1, characterized in that: The linear movement group comprises a second spring (18) and a motor (19), wherein the second spring (18) is fixedly connected between the connecting plate (7) and the side wall of the supporting frame (4), the motor (19) is embedded in the second wedge block (9) and the output end of the motor (19) is fixedly connected to a second gear (20), the second gear (20) is meshed with a second rack rod (21), and the second rack rod (21) is fixedly connected to the supporting frame (4).

3. A vulcanizing machine for manufacturing conveyor belts according to claim 2, characterized in that: An auxiliary roller (22) is provided on the side of the roller (12) away from the positioning rod (15); the auxiliary roller (22) is rotatably connected to a limiting member (23); the limiting member (23) is slidably connected to a limiting groove (31); and a third spring (24) is fixedly connected between the limiting groove (31) and the limiting member (23).

4. A vulcanizing machine for manufacturing conveyor belts according to claim 1, characterized in that: The positioning rods (15) are all L-shaped.

5. A vulcanizing machine for manufacturing conveyor belts according to claim 4, characterized in that: The lower pressing plate (2) is U-shaped and has an L-shaped groove (25) corresponding to the shape of the positioning rod (15) formed therein, and a sealing block (32) is fixedly connected to the positioning rod (15).

6. A vulcanizing machine for manufacturing conveyor belts according to claim 1, characterized in that: The upper pressing plate (3) is slidably connected to a telescopic plate (26), and a fourth spring (27) is fixedly connected between the telescopic plate (26) and the interior of the upper pressing plate (3).

7. A vulcanizing machine for manufacturing conveyor belts according to claim 1, characterized in that: The driving group comprises a first hydraulic rod (28) and a second hydraulic rod (29); the first hydraulic rod (28) is fixedly connected between the machine body (1) and the support frame (4); the second hydraulic rod (29) is fixedly connected to a support rod (30); the support rod (30) is fixedly connected to the rear side wall of the support frame (4); and the bottom end of the second hydraulic rod (29) is fixedly connected to the upper pressure plate (3).

8. A vulcanization process for manufacturing conveyor belts, applicable to the vulcanizing machine for manufacturing conveyor belts as claimed in any one of claims 1 to 7, characterized in that: Step 1: pre-treating and marking the conveyor belt before vulcanization, and then aligning the marking position with the placement plate (6); Step 2: The driving group controls the upper pressing plate (3) to descend so as to clamp the conveyor belt through the clamping plate (6), and when the roller is straightened, the upper pressing plate (3) is in contact with the upper part of the conveyor belt; Step 3: The linear drive group controls the movement of the connecting plate (7) so that the upper part of the conveyor belt is fitted with the bottom of the upper pressure plate (3) during the movement of the roller (12). After the connecting plate (7) stops, the positioning rod (15) resists and fixes the bottom end of the conveyor belt, and the connecting rod (11) and the roller (12) give way through the meshing of the first rack rod (10) and the first gear (14). At this time, the auxiliary roller (22) provides auxiliary support for the conveyor belt. Step 4: The support frame (4) is controlled to descend by the driving group, and then when the colloid is injected, the colloid is fully and evenly distributed by the expansion and contraction of the expansion plate (26); Step 5: When the conveyor belt is removed, the positioning rod (15) can resist the conveyor belt from below to facilitate demoulding.

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