Safety protection structure of tire vulcanizing machine

Abstract

The utility model provides a kind of safety protection structure of tire vulcanizing machine, with security guarantee, satisfy safe and efficient production;Including base, upper and lower mould components, each group upper and lower mould components includes the upper die of oppositely arranged, lower die, upper die is fixed in support seat, lower die is fixed on base, column is equipped on base, support seat is vertically sliding assembled on column, clamping groove is provided on column, loose locking assembly is equipped on support seat, loose locking assembly includes fixed plate on support seat, the both ends of fixed plate correspondingly are equipped with the first telescopic cylinder of opposite setting of telescopic direction, second telescopic cylinder, the piston rod of first telescopic cylinder, second telescopic cylinder is connected with moving block, and the end face of two moving blocks is equipped with the avoidance mouth, and satisfy first telescopic cylinder, second telescopic cylinder contraction action, through two avoidance mouths enclose column, the inner wall surface of avoidance mouth is equipped with the clamping tooth corresponding with clamping groove.

Description

Technical Field

[0001] This utility model relates to the field of vulcanizing rubber equipment technology, specifically a safety protection structure for a tire vulcanizing machine. Background Technology

[0002] As is well known, a vulcanizing machine is a tire vulcanizing equipment. In the mold opening and closing process of the vulcanizing machine, the vulcanizing mold is fixed on the crossbeam, and then the opening and closing action between the upper mold and the lower mold is realized by the mold opening and closing drive mechanism. However, during the opening and closing process of the upper mold and the lower mold, when the upper mold is raised and lowered to the limit position or the set position, there is currently no structure that can reliably ensure that the upper mold does not fall off, which poses a risk of the upper mold falling off, which has a great safety hazard and cannot meet the needs of safe and efficient production. Utility Model Content

[0003] To address the aforementioned issues, this utility model provides a safety protection structure for a tire vulcanizing machine, equipped with safety safeguards to meet the needs of safe and efficient production.

[0004] This utility model adopts the following technical solution: a safety protection structure for a tire vulcanizing machine, including a base and upper and lower mold assemblies. Two sets of upper and lower mold assemblies are provided, respectively located at both ends of the base. Each set of upper and lower mold assemblies includes an upper mold and a lower mold arranged opposite to each other. The upper mold is fixed to a support base, and the lower mold is fixed to the base. A column is provided on the base, and the support base is vertically slidably mounted on the column. A slot is provided on the column, and a locking / unlocking assembly is provided on the support base. The locking / unlocking assembly includes a fixing plate mounted on the support base. A first telescopic cylinder and a second telescopic cylinder with opposite telescopic directions are correspondingly mounted at both ends of the fixing plate. Moving blocks are connected to the piston rods of both the first and second telescopic cylinders. A clearance opening is provided on the opposite end faces of the two moving blocks, satisfying the requirement that when the first and second telescopic cylinders retract, they surround the column through the two clearance openings. The inner wall of the clearance opening is provided with locking teeth corresponding to the slot.

[0005] Furthermore, the base is equipped with support legs at the bottom, and four columns are arranged in pairs at both ends of the base. A connecting beam is provided between the tops of two columns at the same end. The columns are cylindrical in shape, and the support base is provided with guide holes. The support base is slidably assembled onto the columns through the guide holes. The base is equipped with a drive assembly, and the support base is connected to the drive assembly so that the support base and the upper mold can move up and down together under the drive of the drive assembly.

[0006] Furthermore, the drive assembly includes a servo drive motor, a reducer, and a mounting base. The mounting base is mounted on the connecting beam. The servo drive motor and the reducer are assembled and connected and then fixed on the mounting base. A main support is provided on the connecting beam, and a corresponding slave support is provided on the base corresponding to the main support. The drive shaft is rotatably connected to the main support. The output end of the reducer passes through the mounting base and is connected to the drive shaft through a coupling. A drive wheel is mounted on the drive shaft, and a slave wheel is mounted on the slave support through a slave shaft. A chain is connected between the drive wheel and the slave wheel, and both ends of the chain are connected to the support base.

[0007] Furthermore, the piston rods of the first telescopic cylinder and the second telescopic cylinder are respectively connected to the first moving plate and the second moving plate, and the first moving plate and the second moving plate are respectively fixedly connected to the moving block on the corresponding side. The first telescopic cylinder is fixed on the second moving plate, and the second telescopic cylinder is fixed on the first moving plate.

[0008] Furthermore, both the first and second movable plates are T-shaped, and both the first and second movable plates have U-shaped openings. The piston rods of the first and second telescopic cylinders are connected to connecting blocks, and the connecting blocks have grooves that match and engage with the U-shaped openings.

[0009] Furthermore, the fixed plate is equipped with symmetrically arranged fixed blocks at both ends, the fixed blocks are in the shape of a 7, and the movable block has protrusions at the lower part of both ends so as to achieve sliding assembly with the fixed blocks;

[0010] Furthermore, the clearance opening is arc-shaped, and a limit block is installed on the fixed plate located at the end of the stroke of the first telescopic cylinder and / or the second telescopic cylinder; a connecting plate is installed on the second telescopic cylinder, and two proximity switches with a spacing are installed on the connecting plate; a detection element is provided on the second moving plate located below the proximity switches.

[0011] Furthermore, the support base is equipped with a fall protection assembly, which includes a fall protection plate, a fall protection seat, and a fixed support. The fall protection seat and the fixed support are both mounted on the support base. The upper and lower ends of the fall protection plate are respectively provided with a first protrusion and a second protrusion. The first protrusion and the second protrusion extend in two different directions. One end of the tension spring is connected to the fixed support through a first headless pin, and the other end of the tension spring is connected to the first protrusion through a second headless pin. A connecting rod is fixedly connected to the bottom of the support base. The starting end of the chain is fixedly connected to the connecting rod, and the ending end of the chain is connected to the upper part of the fall protection plate through a third headless pin. The lower part of the fall protection plate is connected to the fall protection seat through a rotating pin. When the chain breaks, the tension spring drives the fall protection plate to switch from a vertical state to an inclined state, so that the second protrusion abuts against the column.

[0012] Furthermore, the column is provided with a plurality of locking grooves at intervals along its length, so that when the anti-fall plate is in an inclined state, the second protrusion abuts against the corresponding locking groove;

[0013] Furthermore, an arc-shaped limiting groove is provided on the outer periphery of the end of the rotating pin, and a shaft end baffle corresponding to the limiting groove is fixedly installed on the anti-fall seat; the shaft end baffle is partially engaged in the limiting groove to limit the rotation of the rotating pin.

[0014] The beneficial effects of this utility model are that when the upper mold is raised or lowered to the limit position or the set position, the first telescopic cylinder and the second telescopic cylinder, which are set in opposite directions, act accordingly. They can surround the column through the avoidance opening on the moving block. The inner wall of the avoidance opening is provided with a locking tooth corresponding to the locking groove. After the locking tooth is locked in the corresponding locking groove, it can ensure that the support base and the upper mold on it will not fall, which plays an effective safety protection role. It also provides a reliable safety guarantee for personnel to maintain the upper mold from below. Thus, it can meet the needs of safe and efficient production and has good use value. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 3 This is a partial structural diagram of the assembly of the loose locking component in this utility model;

[0018] Figure 4 This is a partial structural diagram of the assembly of the locking / unlocking component of this utility model, showing the hidden moving block.

[0019] Figure 5 This is a side view of the structure of this utility model;

[0020] Figure 6 yes Figure 5 A magnified structural diagram at point A;

[0021] Figure 7 This is a schematic diagram of the anti-fall component in the case of chain breakage in this utility model;

[0022] Figure 8 yes Figure 5 A magnified structural diagram at point B;

[0023] Figure 9 This is a schematic diagram of the assembly structure of the locking / unlocking assembly of this utility model after the moving block is hidden. Detailed Implementation

[0024] like Figures 1-9 As shown, the present invention discloses a safety protection structure for a tire vulcanizing machine, comprising a base 1 and upper and lower mold 3 assemblies. Two sets of upper and lower mold 3 assemblies are provided, respectively located at both ends of the base 1. Each set of upper and lower mold 3 assemblies includes an upper mold 2 and a lower mold 3 arranged opposite to each other. The upper mold 2 is fixed to a support base 4, and the lower mold 3 is fixed to the base 1. A column 5 is provided on the base 1, and the support base 4 is vertically slidably mounted on the column 5. A slot 6 is provided on the column 5, and a locking / unlocking assembly 52 is provided on the support base 4. The device includes a fixed plate 7 mounted on a support base 4. At both ends of the fixed plate 7 are a first telescopic cylinder 8 and a second telescopic cylinder 9 with opposite telescopic directions. The piston rods of the first telescopic cylinder 8 and the second telescopic cylinder 9 are each connected to a moving block 10. The two moving blocks 10 are provided with clearance openings 11 on their opposite end faces. When the first telescopic cylinder 8 and the second telescopic cylinder 9 retract, they surround the column 5 through the two clearance openings 11. The inner wall of the clearance opening 11 is provided with locking teeth 12 corresponding to the locking groove 6.

[0025] The base 1 is equipped with support legs 13 at the bottom. There are four columns 5, which are arranged in pairs at both ends of the base 1. A connecting beam 14 is provided between the tops of the two columns 5 at the same end. The columns 5 are cylindrical structures. The support seat 4 is provided with guide holes 15. The support seat 4 is slidably assembled on the columns 5 through the guide holes 15. The base 1 is equipped with a drive assembly. The support seat 4 is connected to the drive assembly so that the support seat 4 and the upper mold 2 can move up and down together under the drive of the drive assembly.

[0026] The drive assembly includes a servo drive motor 51, a reducer 17, and a mounting base 18. The mounting base 18 is mounted on the connecting beam 14. After the servo drive motor 51 and the reducer 17 are assembled and connected, they are fixed on the mounting base 18. A main support 19 is provided on the connecting beam 14. A corresponding slave support 20 is provided on the base 1 of the main support 19. The drive shaft 16 is rotatably connected to the main support 19. The output end of the reducer 17 passes through the mounting base 18 and is connected to the drive shaft 16 through a coupling 25. A drive wheel 21 is mounted on the drive shaft 16. A slave wheel 22 is mounted on the slave support 20 through a slave shaft 24. A chain 23 is connected between the drive wheel 21 and the slave wheel 22. Both ends of the chain 23 are connected to the support base 4.

[0027] The piston rods of the first telescopic cylinder 8 and the second telescopic cylinder 9 are respectively connected to the first moving plate 26 and the second moving plate 27. The first moving plate 26 and the second moving plate 27 are respectively fixedly connected to the moving blocks 10 on the corresponding sides. The first telescopic cylinder 8 is fixed on the second moving plate 27, and the second telescopic cylinder 9 is fixed on the first moving plate 26. The first moving plate 26 and the second moving plate 27 are both T-shaped, and both of them have U-shaped openings 28. The piston rods of the first telescopic cylinder 8 and the second telescopic cylinder 9 are each connected to a connecting block 29. The connecting block 29 has a groove 30 that matches and engages with the U-shaped opening 28. The two ends of the fixed plate 7 are equipped with symmetrically arranged fixed blocks 31. The fixed blocks 31 are 7-shaped. The lower part of both ends of the moving block 10 has a protrusion 32 so that the protrusion 32 and the fixed block 31 can be slidably assembled.

[0028] The clearance 11 is arc-shaped, and a limit block 33 is installed on the fixed plate 7 at the end of the stroke of the first telescopic cylinder 8 and / or the second telescopic cylinder 9; a connecting plate 34 is installed on the second telescopic cylinder 9, and two proximity switches 35 are installed on the connecting plate 34 at intervals. A detection element 36 is provided on the second moving plate 27 located below the proximity switches 35. When the two proximity switches 35 detect the detection element 36 at different positions, it can be confirmed whether the state is unlocked or locked.

[0029] The support base 4 is equipped with a fall protection assembly, which includes a fall protection plate 37, a fall protection seat 38, and a fixed support 39. The fall protection seat 38 and the fixed support 39 are both mounted on the support base 4. The upper and lower ends of the fall protection plate 37 are respectively provided with a first protrusion 40 and a second protrusion 41, which extend in two different directions. One end of the tension spring 42 is connected to the fixed support 39 through a first headless pin 43, and the other end of the tension spring 42 is connected to the first protrusion 40 through a second headless pin 44. A connecting rod 45 is fixedly connected to the bottom of the support base 4. The starting end of the chain 23 is fixedly connected to the connecting rod 45, and the ending end of the chain 23 is connected to a third headless pin 46. The upper part of the fall arrestor plate 37 is connected to the lower part of the fall arrestor plate 37 via a rotating pin 47. When the chain 23 breaks, the tension spring 42 drives the fall arrestor plate 37 from a vertical state to an inclined state, so that the second protrusion 41 abuts against the column 5. Several locking grooves 48 are provided at intervals along the length direction on the column 5 so that when the fall arrestor plate 37 is in an inclined state, the second protrusion 41 abuts against the corresponding locking groove 48. An arc-shaped limiting groove 49 is opened on the outer periphery of the end of the rotating pin 47. A shaft end baffle 50 corresponding to the limiting groove 49 is fixedly installed on the fall arrestor plate 38. The shaft end baffle 50 is partially locked in the limiting groove 49 to form a rotation limit on the rotating pin 47.

[0030] The working principle of this utility model is as follows: driven by a servo drive motor, when the lifting process stops, the servo drive motor stops working and brakes, and the support base 4 and the upper mold 2 on it will stop in the middle position, which improves the action response and action accuracy, and improves the working stability and synchronization. When the servo drive motor drives the reducer 17 to move, the drive wheel 21 can be driven to rotate through the coupling 25, so the support base 4 and the upper mold 2 on it will move up and down together along the vertical direction of the column 5, which also avoids the existing hydraulic oil leakage problem.

[0031] When the upper mold 2 is raised or lowered to its limit position or set position, the first telescopic cylinder 8 and the second telescopic cylinder 9, which are set in opposite directions, act accordingly. They can surround the column 5 through the clearance opening 11 on the moving block 10. The inner wall of the clearance opening 11 is provided with locking teeth 12 corresponding to the slots 6. After the locking teeth 12 are locked into the corresponding slots 6, the column 5 is locked by the two moving blocks 10, which can ensure that the support base 4 and the upper mold 2 on it will not fall, thus playing an effective safety protection role and providing a safe environment for personnel under the upper mold 2. The maintenance provides reliable safety assurance; and the two proximity switches 35 can be used to detect whether the two moving blocks 10 are in a closed state (i.e., locked state) or not in a closed state (i.e., unlocked state) relative to the column 5. In the unlocked state, the first telescopic cylinder 8 and the second telescopic cylinder 9 are still activated to open the two moving blocks 10 and the locking teeth 12 are no longer locked in the slot 6, thus realizing the unlocking. The limit block 33 can be used to limit the movement of the moving blocks 10.

[0032] In addition, under normal circumstances, the tension of the tension spring 42 on the fall arrestor plate 37 is greater than the tension force of the tension spring 42, so the fall arrestor plate 37 can be kept in a vertical state, and the second protrusion 41 can also be prevented from accidentally abutting the locking groove 48. When the chain 23 breaks, there is no longer the tension of the chain 23 on the fall arrestor plate 37, so the tension force of the tension spring 42 will cause the fall arrestor plate 37 to rotate into an inclined state, which will extend the second protrusion 41 until it abuts against the locking groove 48. That is, once the chain 23 breaks, under the action of the tension force of the tension spring 42, the fall arrestor plate 37 switches from a vertical state to an inclined state, and the second protrusion 41 can abut against the locking groove 48 on the column 5 to achieve locking, which can prevent the upper mold 2 from falling and provide fall protection.

[0033] It should be noted that, in order to clearly demonstrate the internal structure, Figure 4 , Figure 9 All of these are state structure diagrams after one of the moving blocks is hidden.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A safety protection structure for a tire vulcanizing machine, comprising a base and upper and lower mold assemblies, wherein two sets of upper and lower mold assemblies are respectively disposed at both ends of the base, each set of upper and lower mold assemblies includes an upper mold and a lower mold disposed opposite to each other, the upper mold is fixed to a support base, the lower mold is fixed to the base, a column is provided on the base, and the support base is vertically slidably mounted on the column, characterized in that: The column is provided with a slot, and the support base is provided with a locking / unlocking assembly. The locking / unlocking assembly includes a fixing plate mounted on the support base. At both ends of the fixing plate are a first telescopic cylinder and a second telescopic cylinder arranged in opposite directions. The piston rods of the first telescopic cylinder and the second telescopic cylinder are each connected to a moving block. The two moving blocks are provided with clearance openings on their opposite end faces, which allow the column to be surrounded by the two clearance openings when the first telescopic cylinder and the second telescopic cylinder retract. The inner wall of the clearance opening is provided with locking teeth corresponding to the slot.

2. The safety protection structure for a tire vulcanizing machine according to claim 1, characterized in that: The base is equipped with support legs at its bottom. There are four columns, arranged in pairs at both ends of the base. A connecting beam is provided between the tops of the two columns at the same end. The columns are cylindrical. The support base is provided with guide holes. The support base is slidably assembled onto the columns through the guide holes. The base is equipped with a drive assembly. The support base is connected to the drive assembly so that the support base and the upper mold can move up and down together under the drive of the drive assembly.

3. The safety protection structure for a tire vulcanizing machine according to claim 2, characterized in that: The drive assembly includes a servo drive motor, a reducer, and a mounting base. The mounting base is mounted on the connecting beam. The servo drive motor and the reducer are assembled and connected and then fixed on the mounting base. A main support is provided on the connecting beam, and a corresponding slave support is provided on the base corresponding to the main support. The drive shaft is rotatably connected to the main support. The output end of the reducer passes through the mounting base and is connected to the drive shaft through a coupling. A drive wheel is mounted on the drive shaft, and a slave wheel is mounted on the slave support through a driven shaft. A chain connects the drive wheel and the slave wheel, and both ends of the chain are connected to the support base.

4. The safety protection structure for a tire vulcanizing machine according to claim 1, characterized in that: The piston rods of the first telescopic cylinder and the second telescopic cylinder are respectively connected to the first moving plate and the second moving plate. The first moving plate and the second moving plate are respectively fixedly connected to the moving blocks on the corresponding sides. The first telescopic cylinder is fixed on the second moving plate, and the second telescopic cylinder is fixed on the first moving plate.

5. The safety protection structure for a tire vulcanizing machine according to claim 4, characterized in that: Both the first and second movable plates are T-shaped, and both have U-shaped openings. The piston rods of the first and second telescopic cylinders are connected to connecting blocks, and the connecting blocks have grooves that match and engage with the U-shaped openings.

6. The safety protection structure of a tire vulcanizing machine according to claim 1, characterized in that: The fixed plate is equipped with symmetrically arranged fixed blocks at both ends. The fixed blocks are in the shape of a "7". The movable blocks have protrusions at the lower part of both ends to enable sliding assembly with the fixed blocks.

7. The safety protection structure for a tire vulcanizing machine according to claim 4, characterized in that: The clearance opening is arc-shaped, and a limit block is installed on the fixed plate at the end of the stroke of the first telescopic cylinder and / or the second telescopic cylinder; a connecting plate is installed on the second telescopic cylinder, and two proximity switches are installed on the connecting plate at intervals; a detection element is provided on the second moving plate below the proximity switches.

8. The safety protection structure of a tire vulcanizing machine according to claim 3, characterized in that: The support base is equipped with a fall protection assembly, which includes a fall protection plate, a fall protection seat, and a fixed support. The fall protection seat and the fixed support are both mounted on the support base. The fall protection plate has a first protrusion and a second protrusion at its upper and lower ends, respectively. The first protrusion and the second protrusion extend in two different directions. One end of a tension spring is connected to the fixed support via a first headless pin, and the other end of the tension spring is connected to the first protrusion via a second headless pin. A connecting rod is fixedly connected to the bottom of the support base. The starting end of the chain is fixedly connected to the connecting rod, and the ending end of the chain is connected to the upper part of the fall protection plate via a third headless pin. The lower part of the fall protection plate is connected to the fall protection seat via a rotating pin. When the chain breaks, the tension spring causes the fall protection plate to switch from a vertical state to an inclined state, so that the second protrusion abuts against the column.

9. The safety protection structure for a tire vulcanizing machine according to claim 8, characterized in that: The column is provided with a plurality of locking grooves at intervals along its length, so that when the anti-fall plate is in an inclined state, the second protrusion abuts against the corresponding locking groove.

10. The safety protection structure of a tire vulcanizing machine according to claim 8, characterized in that: An arc-shaped limiting groove is provided on the outer periphery of the end of the rotating pin, and a shaft end baffle corresponding to the limiting groove is fixedly installed on the anti-fall seat; the shaft end baffle is partially engaged in the limiting groove to limit the rotation of the rotating pin.

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