A tire vulcanization nitrogen automatic switching electromagnetic circulation heating machine

Abstract

The present invention relates to an electromagnetic circulation heating machine, and in particular to an automatic switching type electromagnetic circulation heating machine for tire vulcanization nitrogen, including a base, a cylinder and a hollow tube, etc.; a cylinder is welded on the base, and a hollow tube is vertically installed in the cylinder. The present invention swings the handle downward, and when the L-shaped clamping rod is clamped into the circular clamping hole, the handle will press the normally open button, heat the electromagnetic coil to heat the heat pipe, and then rotate the first rotating shaft to drive the turntable to rotate and drive the two blocks to move inward or outward, change the connection state between the two cross grooves on the two blocks and the heat pipe, thereby changing the circulation stroke of the nitrogen, so that the nitrogen can be switched to be heated by one group of heat pipes or four groups of heat pipes, thereby adjusting the heating efficiency of the nitrogen.

Description

Technical Field

[0001] The invention relates to an electromagnetic circulation heating machine, in particular to an automatic switching type tire vulcanization nitrogen electromagnetic circulation heating machine. Background Art

[0002] The main advantage of using nitrogen vulcanization process is that it can reduce production costs. Superheated water vulcanization requires a large amount of high-pressure hot water to circulate continuously in the sulfur plant. In comparison, nitrogen vulcanization only requires a small amount of sealed gas to provide high pressure to the capsule. At the same time, the use of nitrogen is cleaner, safer and simpler.

[0003] When nitrogen vulcanization is used, a heating medium is required to heat the nitrogen. After it is heated to the temperature required for vulcanization, the heated nitrogen is discharged into the vulcanizer for vulcanization. However, when heating the nitrogen, the nitrogen is heated by the heating medium. When the nitrogen is discharged through the heating medium, the nitrogen is slowly heated by the heating medium. The heating time required is too long, which affects the efficiency of the vulcanizer for tire vulcanization.

[0004] Therefore, it is necessary to invent a tire vulcanization nitrogen automatic switching electromagnetic circulation heating machine that can change the flow stroke of nitrogen. When the equipment is started, the flow stroke of nitrogen can be increased, the nitrogen can be quickly heated, the flow stroke of nitrogen can be shortened after heating, the nitrogen displacement can be increased, and the work efficiency can be improved. Summary of the invention

[0005] In order to overcome the disadvantage that the heating medium heats the nitrogen slowly, the heating time is too long, and the vulcanizer affects the tire vulcanization efficiency, the technical problem is to provide a tire vulcanization nitrogen automatic switching electromagnetic circulation heating machine that can change the nitrogen circulation stroke. When the equipment is started, the nitrogen flow stroke can be increased to quickly heat the nitrogen. After heating, the nitrogen flow stroke is shortened, the nitrogen displacement is increased, and the work efficiency is improved.

[0006] The technical solution is as follows: a tire vulcanization nitrogen automatic switching electromagnetic circulation heating machine, including a base, a cylinder, a hollow tube, a heat pipe, an electromagnetic coil, a nitrogen regulating device, a driving device and a switching device. The base is welded with a cylinder, and a hollow tube is vertically installed in the cylinder. Four groups of heat pipes are evenly distributed on the outer circumference of the hollow tube. The heat pipes are in a group of three, and the upper and lower ends of the twelve heat pipes are connected to the hollow tube. The twelve heat pipes are all wound with electromagnetic coils. By energizing the electromagnetic coils, the heat pipes can be heated, thereby heating the nitrogen flowing therein. A nitrogen regulating device is installed on the hollow tube, and the nitrogen regulating device is used to adjust the flow stroke of nitrogen. A driving device is installed in the middle of the hollow tube, and the driving device is used to drive the nitrogen regulating device. A switching device is installed on the right part of the cylinder, and the switching device is used to control the switch of the electromagnetic coil.

[0007] Preferably, the nitrogen regulating mechanism includes a block, a porous air inlet pipe, an upper air outlet pipe, a lower air outlet pipe, a hose, a T-shaped plate and a straight plate. Blocks are slidably installed on the upper and lower parts of the hollow tube. Both blockers have two cross grooves. The cross grooves on each block are symmetrically distributed up and down. By moving the two blockers up and down, the heat pipe can be switched to be connected with the cross grooves on the inner sides of the two blockers or the cross grooves on the outer sides of the two blockers. A porous air inlet pipe is inserted into the upper right part of the upper block, and the end of the porous air inlet pipe is connected with the cross groove at the bottom of the upper block. The lower part of the porous air inlet pipe is provided with twelve elliptical holes. By moving the upper block and the porous air inlet pipe up and down, the porous The air inlet pipe discharges nitrogen from the bottom end or twelve elliptical holes, an upper air outlet pipe is welded on the upper left part of the upper block, the upper air outlet pipe is connected to the upper cross groove of the upper block, a lower air outlet pipe is welded on the lower left part of the lower block, the lower air outlet pipe is connected to the upper cross groove of the lower block, a hose is connected between the upper air outlet pipe and the lower air outlet pipe, a T-shaped plate is welded in the upper cross groove of the upper block, the T-shaped plate divides the upper cross groove of the upper block into the first chamber, the third chamber and the fifth chamber, a straight plate is welded in the lower cross groove of the lower block, the straight plate divides the lower cross groove of the lower block into the second chamber and the fourth chamber, and the twelve elliptical holes of the multi-hole air inlet pipe are all located in the first chamber.

[0008] Preferably, the driving device includes an L-shaped frame, a slotted frame, a first rotating shaft, a torsion spring, a rotating disk and a roller. L-shaped frames are installed on the inner sides of the two blocking blocks by bolts, and the two L-shaped frames are arranged opposite to each other. Slotted frames are welded on the inner sides of the two L-shaped frames, and the two slotted frames are also arranged opposite to each other. The first rotating shaft is connected to the left side of the cylinder, and the left part of the first rotating shaft is a circular disk. The circular disk on the left part of the first rotating shaft is located outside the cylinder. A torsion spring is connected between the circular disk at the left end of the first rotating shaft and the cylinder. A rotating disk is installed on the right end of the first rotating shaft by key connection. Rollers are installed symmetrically on the upper and lower parts of the rotating disk. The two upper rollers are located in the upper slotted frame, and the two lower rollers are located in the lower slotted frame. By rotating the rotating disk, the two slotted frames can be driven to move inward or outward.

[0009] Preferably, the switch device comprises an arc block, a normally open button, a second rotating shaft, a handle, an L-shaped clamping rod and a spring. An arc block is welded on the middle part of the right side of the cylinder body, and the normally open button is installed on the front part of the arc block by a bolt. The electromagnetic coil can be energized and heated by pressing it. A circular clamping hole is opened on the inner rear part of the arc block, and the second rotating shaft is rotatably installed on the right part of the cylinder body. The second rotating shaft passes through the right wall of the cylinder body, and the second rotating shaft is located at the center of the arc block. A handle is welded on the right end of the second rotating shaft, and the normally open button can be pressed by the handle by rotating the handle. An L-shaped clamping rod is slidably installed in the handle, one end of the L-shaped clamping rod passes through the lower part of the handle and cooperates with the circular clamping hole, and a spring is connected between the other end of the L-shaped clamping rod and the handle. The spring is initially in a compressed state. By rotating the handle to make the L-shaped clamping rod correspond to the circular clamping hole, under the action of the spring, the L-shaped clamping rod will be stuck in the circular clamping hole. By the L-shaped clamping rod being stuck in the circular clamping hole, the handle will keep pressing the normally open button.

[0010] Preferably, a delay device is also included, which includes a hexagonal clamping rod, a piston and a second spring. A liquid storage chamber is opened in the first rotating shaft, and a pressure relief hole is opened on the left part of the first rotating shaft. The pressure relief hole connects the liquid storage chamber with the outside world. A hexagonal clamping rod is slidably installed on the right part of the first rotating shaft. The left part of the hexagonal clamping rod is groove-shaped. A piston is fixedly connected to the left end of the hexagonal clamping rod. The piston is located in the liquid storage chamber. The liquid storage chamber on the right side of the piston is filled with mercury. Since the right part of the hexagonal clamping rod is groove-shaped, the filling amount of mercury in the liquid storage chamber on the right side of the piston can be increased. The temperature in the cylinder body is increased to intensify the movement of mercury molecules in the liquid storage chamber, and the gap between the mercury molecules becomes larger, so that the piston can be driven to drive the hexagonal clamping rod to move left. A second spring is connected between the left part of the piston and the first rotating shaft. A hexagonal clamping hole is opened on the left part of the second rotating shaft, and the hexagonal clamping rod cooperates with the hexagonal clamping hole.

[0011] Preferably, a mounting block and an oblique limiting block are also included. The mounting block is installed on the right side of the cylinder through bolts, and an oblique limiting block is welded on the right side of the mounting block. The oblique limiting block limits the handle.

[0012] Preferably, a driving ball is also included, and the driving ball is welded on the right side of the upper part of the L-shaped clamping rod.

[0013] Preferably, a rubber block and a return spring are also included. The rubber block is slidably installed at the inclined right part of the oblique limit block, and a return spring is connected between the rubber block and the oblique limit block.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. By swinging the handle downward, when the L-shaped clamping rod is inserted into the round clamping hole, the handle will press the normally open button, heat the electromagnetic coil to heat the heat pipe, and then rotate the first shaft to drive the turntable to drive the two blocks to move inward or outward, changing the connection state between the two cross grooves on the two blocks and the heat pipe, thereby changing the flow stroke of nitrogen. In this way, the nitrogen can be switched to be heated by one group of heat pipes or four groups of heat pipes, thereby adjusting the heating efficiency of the nitrogen.

[0016] 2. By turning the handle to make the L-shaped clamping rod fit into the circular clamping hole, the first rotating shaft can be driven to rotate 30 degrees forward through the hexagonal clamping rod. When the temperature inside the cylinder rises, the piston and the hexagonal clamping rod are driven to move to the left according to the principle of thermal expansion and contraction of mercury. When the hexagonal clamping rod moves to the left and disengages from the hexagonal clamping hole, the first rotating shaft automatically resets under the action of the torsion spring. In this way, the first rotating shaft can be automatically rotated 30 degrees forward when the power is turned on, and the first rotating shaft can be automatically reversed 30 degrees when the temperature inside the heat pipe heating cylinder rises. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the first cross-sectional structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the second three-dimensional structure of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the driving device and the switching device of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the nitrogen regulating device of the present invention.

[0022] Figure 6 This is a schematic diagram of the first partial structure of the nitrogen regulating device of the present invention.

[0023] Figure 7 This is a schematic diagram of the second partial structure of the nitrogen regulating device of the present invention.

[0024] Figure 8 This is a schematic diagram of the third partial structure of the nitrogen regulating device of the present invention.

[0025] Fig. 9 This is a schematic diagram of the fourth partial structure of the nitrogen regulating device of the present invention.

[0026] Fig.10 This is a schematic diagram of the fifth partial structure of the nitrogen regulating device of the present invention.

[0027] Fig.11 This is a schematic diagram of a first cross-sectional structure of the delay device of the present invention.

[0028] Fig.12 This is a schematic diagram of a second cross-sectional structure of the delay device of the present invention.

[0029] Fig.13 It is a schematic diagram of the three-dimensional structure of the second rotating shaft and the hexagonal clamping hole of the present invention.

[0030] Fig.14 It is a schematic diagram of a second cross-sectional structure of the present invention.

[0031] Fig.15 It is a schematic diagram of the three-dimensional structure of the oblique limit block and the rubber block of the present invention.

[0032] Description of the accompanying drawings: 1_base, 2_cylinder, 3_hollow tube, 4_heat pipe, 5_electromagnetic coil, 6_nitrogen regulating device, 61_block, 62_cross groove, 63_multi-hole air inlet pipe, 64_upper air outlet pipe, 65_lower air outlet pipe, 66_hose, 67_T-shaped plate, 68_slot plate, 69_first chamber, 610_second chamber, 611_third chamber, 612_fourth chamber, 613_fifth chamber, 7_driving device, 71_L-shaped frame, 72_slot frame, 73 _first rotating shaft, 74_torsion spring, 75_turntable, 76_roller, 8_switch device, 81_arc block, 82_normally open button, 83_circular clamping hole, 84_second rotating shaft, 85_handle, 86_L-shaped clamping rod, 87_spring one, 9_delay device, 91_liquid storage chamber, 92_pressure relief hole, 93_hexagonal clamping rod, 94_piston, 95_spring two, 96_hexagonal clamping hole, 10_mounting block, 11_oblique limit block, 12_driving ball, 13_rubber block, 14_reset spring. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] Example

[0035] A tire vulcanization nitrogen automatic switching electromagnetic circulation heating machine includes a base 1, a cylinder 2, a hollow tube 3, a heat pipe 4, an electromagnetic coil 5, a nitrogen regulating device 6, a driving device 7 and a switch device 8, please refer to Figure 1-Figure 10As shown, a cylinder 2 is welded on the base 1, a hollow tube 3 is vertically installed in the cylinder 2, four groups of heat pipes 4 are evenly distributed on the outer circumference of the hollow tube 3, and the heat pipes 4 are in a group of three. The upper and lower ends of the twelve heat pipes 4 are connected to the hollow tube 3, and the twelve heat pipes 4 are wound with electromagnetic coils 5. By energizing the electromagnetic coils 5, the heat pipes 4 can be heated, thereby heating the nitrogen flowing therein. A nitrogen regulating device 6 is installed on the hollow tube 3, and the nitrogen regulating device 6 is used to regulate the flow stroke of nitrogen. A driving device 7 is installed in the middle of the hollow tube 3, and the driving device 7 is used to drive the nitrogen regulating device 6. A switch device 8 is installed on the right part of the cylinder 2, and the switch device 8 is used to control the switch of the electromagnetic coil 5.

[0036] The nitrogen regulating device 6 includes a block 61, a multi-hole air inlet pipe 63, an upper air outlet pipe 64, a lower air outlet pipe 65, a hose 66, a T-shaped plate 67 and a straight plate 68, see Figure 3-Figure 10 As shown, a block 61 is slidably installed in the upper and lower parts of the hollow tube 3, and the two block 61 are provided with two cross grooves 62, and the cross grooves 62 on each block 61 are symmetrically distributed up and down. By moving the two block 61 up and down, the heat pipe 4 can be switched to be connected with the cross grooves 62 on the inner sides of the two block 61 or the cross grooves 62 on the outer sides of the two block 61. A porous air inlet pipe 63 is inserted into the upper right part of the upper block 61, and the end of the porous air inlet pipe 63 is connected with the cross groove 62 at the lower part of the upper block 61. The lower part of the porous air inlet pipe 63 is provided with twelve elliptical holes. By moving the upper block 61 and the porous air inlet pipe 63 up and down, the porous air inlet pipe 63 can be switched to discharge nitrogen from the bottom end or the twelve elliptical holes. An upper air outlet is welded on the upper left part of the upper block 61. Tube 64, the upper air outlet pipe 64 is connected to the upper cross groove 62 of the upper block 61, a lower air outlet pipe 65 is welded on the lower left part of the lower block 61, the lower air outlet pipe 65 is connected to the upper cross groove 62 of the lower block 61, a hose 66 is connected between the upper air outlet pipe 64 and the lower air outlet pipe 65, a T-shaped plate 67 is welded in the upper cross groove 62 of the upper block 61, the T-shaped plate 67 separates the upper cross groove 62 of the upper block 61 into a first chamber 69, a third chamber 611 and a fifth chamber 613, a straight plate 68 is welded in the lower cross groove 62 of the lower block 61, the straight plate 68 separates the lower cross groove 62 of the lower block 61 into a second chamber 610 and a fourth chamber 612, and the twelve elliptical holes of the porous air inlet pipe 63 are all located in the first chamber 69.

[0037] The driving device 7 includes an L-shaped frame 71, a slotted frame 72, a first rotating shaft 73, a torsion spring 74, a rotating disk 75 and a roller 76, see Figure 4As shown, L-shaped frames 71 are installed on the inner sides of the two blocking blocks 61 by bolts, and the two L-shaped frames 71 are distributed opposite to each other. A slotted frame 72 is welded on the inner sides of the two L-shaped frames 71, and the two slotted frames 72 are also distributed opposite to each other. A first rotating shaft 73 is connected to the left side of the cylinder 2, and the left part of the first rotating shaft 73 is a circular disk. The circular disk on the left part of the first rotating shaft 73 is located on the outside of the cylinder 2, and a torsion spring 74 is connected between the circular disk at the left end of the first rotating shaft 73 and the cylinder 2. A turntable 75 is installed on the right end of the first rotating shaft 73 by key connection. Rollers 76 are installed symmetrically on the upper and lower parts of the turntable 75. The two upper rollers 76 are located in the upper slotted frame 72, and the two lower rollers 76 are located in the lower slotted frame 72. By rotating the turntable 75, the two slotted frames 72 can be driven to move inward or outward.

[0038] The switch device 8 includes an arc block 81, a normally open button 82, a second rotating shaft 84, a handle 85, an L-shaped clamping rod 86 and a spring 87, see Figure 4 As shown, an arc block 81 is welded on the middle part of the right side of the cylinder 2, and a normally open button 82 is installed on the front part of the arc block 81 by bolts. The electromagnetic coil 5 can be powered on and heated by pressing it. A circular card hole 83 is opened on the inner rear part of the arc block 81. A second rotating shaft 84 is rotatably installed on the right part of the cylinder 2. The second rotating shaft 84 passes through the right wall of the cylinder 2. The second rotating shaft 84 is located at the center of the arc block 81. A handle 85 is welded on the right end of the second rotating shaft 84. By rotating the handle 85, the normally open button 82 can be pressed by the handle 85. An L-shaped card rod 86 is slidably installed in the handle 85, and one end of the L-shaped card rod 86 passes through the lower part of the handle 85 and cooperates with the circular card hole 83. A spring 87 is connected between the other end of the L-shaped card rod 86 and the handle 85. The spring 87 is initially in a compressed state. By rotating the handle 85 to make the L-shaped card rod 86 correspond to the circular card hole 83, under the action of the spring 87, the L-shaped card rod 86 will be stuck in the circular card hole 83. By the L-shaped card rod 86 being stuck in the circular card hole 83, the handle 85 will continue to press the normally open button 82.

[0039] First, the operator connects the porous air inlet pipe 63 to the exhaust pipe of the vulcanizer, connects the hose 66 to the air inlet pipe of the vulcanizer, and then presses the front of the handle 85 downward. The handle 85 swings downward, which drives the front of the L-shaped clamping rod 86 to swing downward. When the L-shaped clamping rod 86 swings downward to the point where its rear portion corresponds to the circular clamping hole 83, the L-shaped clamping rod 86 swings exactly thirty degrees. Under the action of the spring 1 87, the L-shaped clamping rod 86 is clamped into the circular clamping hole 83. At this time, the handle 85 just presses against the normally open button 82, and the electromagnetic coil 5 is connected to the power supply for heating. The heating of the electromagnetic coil 5 will heat the heat pipe 4, and then the nitrogen in the vulcanizer is discharged into the porous air inlet pipe 63. The operator rotates the first rotating shaft 73 forward, and the torsion spring 74 is twisted accordingly. The forward rotation of the first rotating shaft 73 drives the turntable 75 When the turntable 75 rotates forward, the two one-slot frames 72 will be pulled inward through the four rollers 76. The two one-slot frames 72 will move inward and drive the two blocking blocks 61 to move inward through the two L-shaped frames 71. When the turntable 75 rotates forward 30 degrees, the upper cross groove 62 of the upper blocking block 61 is connected with the heat pipe 4, and the lower cross groove 62 of the upper blocking block 61 will be in a closed state. At the same time, the lower cross groove 62 of the lower blocking block 61 is connected with the heat pipe 4, and the upper cross groove 62 of the lower blocking block 61 will be in a closed state. At this time, the nitrogen in the porous air inlet pipe 63 will be discharged into the first chamber 69, and then discharged from the first chamber 69 through a group of heat pipes 4 on the right front side into the second chamber 610, and then from the second chamber 610 through a group of heat pipes 4 on the right rear side. The heat pipe 4 is discharged into the third chamber 611, and then discharged from the third chamber 611 into the fourth chamber 612 through a group of heat pipes 4 on the left rear side, and finally discharged from the fourth chamber 612 into the fifth chamber 613 through a group of heat pipes 4 on the left front side. In this way, the nitrogen will be discharged through the four groups of heat pipes 4 in sequence, and the four groups of heat pipes 4 will heat the nitrogen in sequence. The nitrogen heated by the four groups of heat pipes 4 will be discharged into the vulcanizer through the hose 66, and the vulcanizer can vulcanize the tire. In this way, the nitrogen can be quickly heated. When the nitrogen is heated to a temperature that reaches the temperature required for vulcanization of the vulcanizer, the operator releases the first rotating shaft 73. Under the action of the torsion spring 74, the first rotating shaft 73 will reverse, and the reversal of the first rotating shaft 73 will drive the rotating disk 75 to reverse, and the reversal of the rotating disk 75 will pass through the four The roller 76 drives the two slotted frames 72 to move outward, and the two slotted frames 72 move outward, and the two blockers 61 are pushed outward through the two L-shaped frames 71. When the turntable 75 is reversed by thirty degrees, the lower cross groove 62 of the upper block 61 is connected with the heat pipe 4, and the upper cross groove 62 of the upper block 61 is in a closed state. At the same time, the upper cross groove 62 of the lower block 61 is connected with the heat pipe 4, and the lower cross groove 62 of the lower block 61 is in a closed state. Nitrogen will be discharged into the lower cross groove 62 of the upper block 61 along with the porous air inlet pipe 63, and then discharged into the upper cross groove 62 of the lower block 61 through the twelve heat pipes 4.In this way, the discharge volume of nitrogen can be increased. When nitrogen is discharged through the twelve heat pipes 4, the twelve heat pipes 4 will heat the nitrogen at the same time. The heated nitrogen in the upper cross groove 62 of the lower block 61 will be discharged into the hose 66 through the lower outlet pipe 65, and then discharged into the vulcanizer through the hose 66. The tire is vulcanized by the vulcanizer. After the heat energy of the nitrogen in the vulcanizer is used up, it will be discharged into the multi-hole intake pipe 63 through the exhaust pipe. In this way, the nitrogen can be switched to be heated by one group of heat pipes 4 or four groups of heat pipes 4. By adjusting the heating efficiency of nitrogen and changing the circulation speed of nitrogen, when the tire is vulcanized, the L-shaped clamping rod 86 is pulled forward and upward, and the spring 1 87 is compressed accordingly. When the L-shaped clamping rod 86 is disengaged from the circular clamping hole 83, the handle 85 is swung upward by thirty degrees, and the handle 85 is disengaged from the normally open button 82, and the electromagnetic coil 5 is disconnected from the power supply. Then, the L-shaped clamping rod 86 is released, and under the action of the spring 1 87, the L-shaped clamping rod 86 is pressed against the inner side of the arc block 81, so that the electromagnetic coil 5 can be disconnected from the power supply. By swinging the handle 85 downward, when the L-shaped clamping rod 86 is clamped into the circular clamping hole 83, the handle 85 will press the normally open button 82, heat the electromagnetic coil 5 to heat the heat pipe 4, and then rotate the first rotating shaft 73 to drive the turntable 75 to rotate and drive the two blocks 61 to move inward or outward, changing the connection state between the two cross grooves 62 on the two blocks 61 and the heat pipe 4, thereby changing the flow stroke of nitrogen. In this way, it is possible to switch the nitrogen to be heated by one group of heat pipes 4 or four groups of heat pipes 4, thereby adjusting the heating efficiency of the nitrogen.

[0040] The device also includes a time delay device 9, which includes a hexagonal clamping rod 93, a piston 94 and a spring 95. Figure 11-13 As shown, a liquid storage chamber 91 is opened in the first rotating shaft 73, and a pressure relief hole 92 is opened on the left side of the first rotating shaft 73. The pressure relief hole 92 connects the liquid storage chamber 91 with the outside. A hexagonal clamping rod 93 is slidably installed on the right side of the first rotating shaft 73. The left side of the hexagonal clamping rod 93 is a groove-shaped setting. A piston 94 is fixedly connected to the left end of the hexagonal clamping rod 93. The piston 94 is located in the liquid storage chamber 91. The liquid storage chamber 91 on the right side of the piston 94 is filled with mercury. Since the right side of the hexagonal clamping rod 93 is a groove-shaped setting, a piston 94 is fixedly connected to the left end of the hexagonal clamping rod 93. The arrangement is such that the filling amount of mercury in the liquid storage chamber 91 on the right side of the piston 94 can be increased, and the temperature in the cylinder 2 is increased to intensify the movement of mercury molecules in the liquid storage chamber 91, and the gaps between the mercury molecules become larger, thereby driving the piston 94 to drive the hexagonal clamping rod 93 to move leftward. A spring 2 95 is connected between the left part of the piston 94 and the first rotating shaft 73, and a hexagonal clamping hole 96 is opened on the left part of the second rotating shaft 84, and the hexagonal clamping rod 93 cooperates with the hexagonal clamping hole 96.

[0041] When the handle 85 is swung downward to drive the second rotating shaft 84 to rotate forward, the second rotating shaft 84 drives the hexagonal clamping rod 93 to rotate forward, and the forward rotation of the hexagonal clamping rod 93 will drive the first rotating shaft 73 to rotate forward, and the torsion spring 74 will be compressed accordingly. When the L-shaped clamping rod 86 is clamped into the circular clamping hole 83, the first rotating shaft 73 is rotated forward by thirty degrees. When the heat pipe 4 is heated to a higher temperature to heat the nitrogen, the temperature in the cylinder 2 will increase, and the high temperature in the cylinder 2 will cause the mercury in the liquid storage chamber 91 to expand. The expansion of mercury in the liquid storage chamber 91 will push the piston 94 to move left, and the air on the left side of the piston 94 in the liquid storage chamber 91 will be discharged through the pressure relief hole 92, and the spring 95 will be compressed accordingly. The movement of the piston 94 to the left will drive the hexagonal clamping rod 93 to move left. When the temperature in the cylinder 2 continues to rise, the hexagonal clamping rod 93 moves left to the same position as the hexagonal clamping rod 93. When the ribbed hole 96 is disengaged, under the action of the torsion spring 74, the first rotating shaft 73 will be reset, and the reset of the first rotating shaft 73 drives the hexagonal clamping rod 93 to reset. When the handle 85 is swung upward, the temperature in the cylinder 2 decreases, the mercury contracts, and the piston 94 pushes the hexagonal clamping rod 93 to move rightward. After the hexagonal clamping rod 93 moves rightward, it abuts against the second rotating shaft 84. Then, the position of the handle 85 is adjusted so that the hexagonal clamping hole 96 on the left part of the second rotating shaft 84 is aligned with the hexagonal clamping rod 93. Under the action of the spring 95, the hexagonal clamping rod 93 will be re-engaged in the hexagonal clamping hole 96. In this way, the first rotating shaft 73 can be automatically rotated forward by 30 degrees when the power is turned on, so as to improve the heating efficiency of the nitrogen. After the temperature in the cylinder 2 heated by the heat pipe 4 increases, the first rotating shaft 73 is automatically reversed by 30 degrees to restore the circulation stroke of the nitrogen. By turning the handle 85 to make the L-shaped clamping rod 86 clamped into the circular clamping hole 83, the first rotating shaft 73 can be driven to rotate forward 30 degrees through the hexagonal clamping rod 93. When the temperature in the cylinder 2 rises, the piston 94 and the hexagonal clamping rod 93 are driven to move leftward according to the thermal expansion and contraction principle of mercury. When the hexagonal clamping rod 93 moves to the left and disengages from the hexagonal clamping hole 96, the first rotating shaft 73 is automatically reset under the action of the torsion spring 74. In this way, the first rotating shaft 73 can be automatically rotated forward 30 degrees when the power is turned on. After the temperature in the cylinder 2 heated by the heat pipe 4 rises, the first rotating shaft 73 is automatically reversed 30 degrees.

[0042] Also includes a mounting block 10 and an oblique limit block 11, see Figure 14-15 As shown, a mounting block 10 is installed on the right side of the cylinder 2 by bolts, and an oblique limiting block 11 is welded on the right side of the mounting block 10, and the oblique limiting block 11 limits the handle 85.

[0043] Also includes a drive ball 12, see Fig.13 and Fig.14 As shown, a driving ball 12 is welded to the upper right side of the L-shaped clamping rod 86 .

[0044] Also includes a rubber block 13 and a return spring 14, see Fig.15As shown, a rubber block 13 is slidably installed at the inclined portion of the right side of the oblique limit block 11 , and a return spring 14 is connected between the rubber block 13 and the oblique limit block 11 .

[0045] By limiting the handle 85 through the oblique limit block 11, there is no need to manually adjust the position of the handle 85. When the handle 85 swings upward to contact the oblique limit block 11, the handle 85 swings upward exactly thirty degrees, and the hexagonal clamping rod 93 can be directly clamped into the hexagonal clamping hole 96.

[0046] The operator holds the driving ball 12 on the upper right side of the L-shaped card rod 86 and pulls the L-shaped card rod 86 forward and upward, so that the L-shaped card rod 86 can be pulled more labor-savingly.

[0047] When the handle 85 swings upward, it comes into contact with the rubber block 13 , and the rubber block 13 and the return spring 14 apply a buffering force to the handle 85 .

[0048] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tire vulcanizing nitrogen automatic switching electromagnetic circulation heating machine, comprising a base (1), a cylinder (2), a hollow tube (3), a heat pipe (4) and an electromagnetic coil (5), wherein the base (1) is fixedly connected to the cylinder (2), the hollow tube (3) is vertically installed in the cylinder (2), four groups of heat pipes (4) are evenly distributed on the outer circumference of the hollow tube (3), the heat pipes (4) are in a group of three, the upper and lower ends of the twelve heat pipes (4) are connected to the hollow tube (3), and the twelve heat pipes (4) are all wound with electromagnetic coils (5), characterized in that: It also includes a nitrogen regulating device (6), a driving device (7) and a switch device (8); the nitrogen regulating device (6) for regulating the flow of nitrogen is installed on the hollow tube (3); the driving device (7) for driving the nitrogen regulating device (6) is installed in the middle of the hollow tube (3); and the switch device (8) for controlling the switch of the electromagnetic coil (5) is installed on the right part of the cylinder (2); The nitrogen regulating device (6) comprises a block (61), a porous air inlet pipe (63), an upper air outlet pipe (64), a lower air outlet pipe (65), a hose (66), a T-shaped plate (67) and a straight plate (68). Blocks (61) are slidably mounted on the upper and lower parts of the hollow tube (3). The two block blocks (61) are each provided with two cross grooves (62). The cross grooves (62) on each block block (61) are symmetrically distributed in the upper and lower parts. The upper right part of the upper block block (61) is penetrated by the porous air inlet pipe (63). The end of the porous air inlet pipe (63) is communicated with the cross groove (62) at the lower part of the upper block block (61). The lower part of the porous air inlet pipe (63) is provided with twelve elliptical holes. The upper air outlet pipe (64) is fixedly connected to the upper left part of the upper block block (61). The upper air outlet pipe (64) is communicated with the upper cross groove (62) of the upper block block (61). A lower air outlet pipe (65) is fixedly connected to the lower left part of the lower block (61), the lower air outlet pipe (65) is communicated with the upper cross groove (62) of the lower block (61), a hose (66) is connected between the upper air outlet pipe (64) and the lower air outlet pipe (65), a T-shaped plate (67) is fixedly connected to the upper cross groove (62) of the upper block (61), and the T-shaped plate (67) connects the upper cross groove (62) of the upper block (61) to the upper cross groove (62) of the upper block (61). The lower cross groove (62) of the lower block (61) is fixedly connected with a straight plate (68), and the straight plate (68) separates the lower cross groove (62) of the lower block (61) into a second chamber (610) and a fourth chamber (612). The twelve elliptical holes of the multi-hole air inlet pipe (63) are all located in the first chamber (69); The driving device (7) comprises an L-shaped frame (71), a slot frame (72), a first rotating shaft (73), a torsion spring (74), a rotating disk (75) and a roller (76). The inner sides of the two blocking blocks (61) are both equipped with L-shaped frames (71), the two L-shaped frames (71) are arranged opposite to each other, the inner sides of the two L-shaped frames (71) are both fixedly connected with a slot frame (72), the two slot frames (72) are also arranged opposite to each other, the left side of the cylinder (2) is connected with the first rotating shaft (73), the first rotating shaft The left part of the first rotating shaft (73) is a circular disk, the circular disk on the left part of the first rotating shaft (73) is located outside the cylinder (2), a torsion spring (74) is connected between the circular disk at the left end of the first rotating shaft (73) and the cylinder (2), a rotating disk (75) for driving the two slotted frames (72) to move inward or outward is installed at the right end of the first rotating shaft (73), and rollers (76) are installed symmetrically on the upper and lower parts of the rotating disk (75), and the two upper rollers (76) are both located in the slotted frame (72) at the upper part. The two rollers (76) at the lower part are both located in the slotted frame (72) at the lower part; The switch device (8) comprises an arc block (81), a normally open button (82), a second rotating shaft (84), a handle (85), an L-shaped clamping rod (86) and a spring (87). The arc block (81) is fixedly connected to the middle part of the right side of the cylinder (2). The normally open button (82) is installed on the front of the arc block (81). When the normally open button (82) is pressed, the electromagnetic coil (5) can be energized and heated. A circular clamping hole (83) is opened on the rear side of the inner side of the arc block (81). The second rotating shaft (84) is rotatably installed on the right side of the cylinder (2). The second rotating shaft (84) passes through the right wall of the cylinder (2), the second rotating shaft (84) is located at the center of the arc block (81), the right end of the second rotating shaft (84) is fixedly connected with a handle (85), and an L-shaped clamping rod (86) is slidably installed in the handle (85), one end of the L-shaped clamping rod (86) passes through the lower part of the handle (85) and cooperates with the circular clamping hole (83), and a spring (87) is connected between the other end of the L-shaped clamping rod (86) and the handle (85), and the spring (87) is initially in a compressed state.

2. The tire vulcanization nitrogen automatic switching electromagnetic circulation heating machine according to claim 1 is characterized in that: The invention also comprises a time delay device (9), which comprises a hexagonal clamping rod (93), a piston (94) and a second spring (95). A liquid storage chamber (91) is provided in the first rotating shaft (73), a pressure relief hole (92) is provided on the left side of the first rotating shaft (73), and the pressure relief hole (92) connects the liquid storage chamber (91) with the outside. A hexagonal clamping rod (93) is slidably mounted on the right side of the first rotating shaft (73), the left side of the hexagonal clamping rod (93) is groove-shaped, and the left end of the hexagonal clamping rod (93) is fixedly connected to the piston. (94), the piston (94) is located in the liquid storage chamber (91), the liquid storage chamber (91) on the right side of the piston (94) is filled with mercury, and since the right part of the hexagonal clamping rod (93) is arranged in a groove shape, the filling amount of mercury in the liquid storage chamber (91) on the right side of the piston (94) can be increased, a second spring (95) is connected between the left part of the piston (94) and the first rotating shaft (73), a hexagonal clamping hole (96) is opened on the left part of the second rotating shaft (84), and the hexagonal clamping rod (93) cooperates with the hexagonal clamping hole (96).

3. The tire vulcanization nitrogen automatic switching electromagnetic circulation heating machine according to claim 2 is characterized in that: It also includes a mounting block (10) and an oblique limiting block (11). The mounting block (10) is mounted on the right side of the cylinder (2). The oblique limiting block (11) is fixedly connected to the right side of the mounting block (10). The oblique limiting block (11) limits the handle (85).

4. The tire vulcanization nitrogen automatic switching electromagnetic circulation heating machine according to claim 3 is characterized in that: It also includes a driving ball (12), and the driving ball (12) is fixedly connected to the right side of the upper part of the L-shaped clamping rod (86).

5. The tire vulcanization nitrogen automatic switching electromagnetic circulation heating machine according to claim 4, characterized in that: It also includes a rubber block (13) and a return spring (14); the rubber block (13) is slidably mounted on the right inclined portion of the oblique limit block (11); and the return spring (14) is connected between the rubber block (13) and the oblique limit block (11).

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