Tire mold with heat dissipation function

Abstract

The utility model provides a tire mold with a heat dissipation function, which relates to the technical field of tire molds, and comprises a workbench, the upper surface of the workbench is fixedly connected with a top plate, the lower surface of the top plate is fixedly connected with an air cylinder, and the output end of the air cylinder extends downwards and is fixedly connected with an upper mold. When a tire needs to be produced, firstly, raw materials are placed in the base die cavity, then a worker starts the driving air cylinder on the upper fixing plate, the driving air cylinder drives the upper fixing plate to drive the upper fixing plate to rotate, the upper fixing plate drives the lower fixing plate to rotate, and the upper fixing plate drives the lower fixing plate to rotate. The air cylinder drives the pressing module to move in the direction of the base die cavity, and a workpiece in the die is formed. At the moment, a worker rotates an adjusting lead screw, the lead screw drives a wedge-shaped push block to move in a guide inner cavity, the inclined face of the wedge-shaped push block extrudes a jacking base plate, the base plate drives a supporting connecting rod and an ejection disc to move upwards, and the ejection disc ejects a workpiece on a base die cavity out.

Description

Technical Field

[0001] This utility model relates to the field of tire mold technology, and in particular to a tire mold with heat dissipation function. Background Technology

[0002] Tires are circular, elastic rubber products that are mounted on various vehicles or machinery and roll on the ground. They are usually mounted on metal rims, support the vehicle body, buffer external impacts, make contact with the road surface, and ensure the vehicle's driving performance. During the production process, tires are generally extruded and shaped using molds.

[0003] In the existing technology, the tires that have been shaped are sticky because of the adhesiveness of the rubber, which causes the tire part to stick to the inner wall of the mold, making it difficult for workers to remove the tires from the mold and causing inconvenience to the workers. Utility Model Content

[0004] This utility model proposes a tire mold with heat dissipation function to overcome the shortcomings of the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tire mold with heat dissipation function, including a workbench, a top plate fixedly connected to the upper surface of the workbench, a cylinder fixedly connected to the lower surface of the top plate, the output end of the cylinder extending downward and fixedly connected to an upper mold, and a lower mold fixedly connected to the upper surface of the workbench below the upper mold, characterized in that: an ejection mechanism is provided inside the workbench;

[0006] The ejection mechanism includes: a receiving cavity formed inside the worktable;

[0007] A drive component threadedly connected to the worktable, one end of which extends into the accommodating cavity and is connected to a transmission component;

[0008] An ejector component is slidably disposed within the accommodating cavity. One end of the ejector component extends into the interior of the lower mold and is connected to a support member for ejecting the tire. The support member is adapted to the demolding structure dimensions of the lower mold.

[0009] An elastic reset assembly is used to drive the ejector component to reset.

[0010] Preferably, the driving component is a driving screw, and the transmission component is a wedge-shaped push block rotatably connected to the driving screw;

[0011] The ejector component is an ejector slide rod that is slidably inserted into the accommodating cavity, and the support component is a circular top plate fixed to the ejector slide rod;

[0012] The elastic reset component is a reset spring sleeved on the ejector slide rod, with its two ends respectively abutting against the inner wall of the accommodating cavity and the thrust pad fixed to the ejector slide rod.

[0013] Preferably, a friction-reducing component is provided between the thrust pad and the wedge-shaped push block. The friction-reducing component includes a friction-reducing roller rotatably connected to the thrust pad, and the friction-reducing roller rolls and fits against the inclined surface of the wedge-shaped push block.

[0014] Preferably, an operating handle is fixedly connected to one end of the drive screw that extends outside the worktable, and the surface of the operating handle is provided with anti-slip texture.

[0015] Preferably, a guide limiting member is fixedly connected inside the accommodating cavity, and the guide limiting member is located on both sides of the wedge-shaped push block to restrict its movement direction.

[0016] Preferably, a cooling system is provided on one side of the workbench, the cooling system including: a cooling water tank fixed to the workbench, with a water inlet on the top and a slidingly inserted sealing plug;

[0017] A circulating cooling assembly includes a circulating water pump installed in the cooling water tank, an inlet pipe connected to the circulating water pump, a spiral cooling pipe coiled inside the lower mold, and an outlet pipe connected to the spiral cooling pipe, the outlet pipe being reconnected to the cooling water tank.

[0018] Preferably, the sealing plug is fixedly connected to the cooling water tank by an anti-detachment pull rope, and the cross-section of the spiral cooling pipe is spiral-shaped to increase the heat exchange area.

[0019] Preferably, a pipe fixing ring is fixedly connected to the surface of the workbench, and the pipe fixing ring is sleeved on the outside of the water inlet pipe and the water outlet pipe to limit pipe swaying.

[0020] In summary, the beneficial effects of this utility model are as follows:

[0021] When tire production is required, the raw material is first placed inside the base mold cavity. Then, the operator activates the drive cylinder on the upper fixed plate. The cylinder moves the pressing module towards the base mold cavity, forming the workpiece in the mold. At this time, the operator rotates the adjusting screw, which moves the wedge-shaped push block in the guide cavity. The inclined surface of the wedge-shaped push block presses against the lifting pad, which in turn moves the support connecting rod and the ejector disc upwards. The ejector disc pushes the workpiece out of the base mold cavity. The demolding mechanism achieves the ejection effect of the workpiece from the base mold cavity, making it easier for the operator to demold the workpiece from the mold. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a cross-sectional view of the workbench of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the ejection mechanism of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the cooling system of this utility model.

[0026] Legend: 1. Workbench; 2. Top plate; 3. Cylinder; 4. Upper mold; 5. Lower mold; 6. Ejection mechanism; 61. Receiving cavity; 62. Drive screw; 63. Wedge-shaped push block; 64. Ejection slide bar; 65. Circular top plate; 66. Return spring; 67. Thrust pad; 68. Anti-friction roller; 69. Guide limit block; 610. Operating handle; 7. Cooling system; 71. Cooling water tank; 72. Water inlet; 73. Sealing plug; 74. Water inlet pipe; 75. Water outlet pipe; 76. Spiral cooling pipe; 77. Circulating water pump; 78. Pipe fixing ring; 79. Anti-detachment rope. Detailed Implementation

[0027] The tire mold with heat dissipation function provided by this utility model, such as Figure 1-4 As shown, it mainly includes a worktable 1, a top plate 2, a cylinder 3, an upper mold 4, a lower mold 5, an ejection mechanism 6, and a cooling system 7. Among them, the worktable 1 is a rectangular base made of high-strength steel. The lower mold 5 is fixedly installed in the middle of the upper surface. The lower mold 5 is cylindrical and has a cavity inside that matches the shape of a tire.

[0028] The top plate 2 is fixed above the workbench 1 by four vertical support rods, forming a gantry structure. A cylinder 3 is fixedly connected to the center of the lower surface of the top plate 2. The output end of the cylinder 3 extends downward and is fixedly connected to the upper mold 4. The upper mold 4 and the lower mold 5 have matching mold cavity shapes, and the upper and lower molds can be closed and opened by the extension and retraction of the cylinder 3.

[0029] The specific structure and working principle of the ejection mechanism 6:

[0030] The ejection mechanism 6 is located inside the worktable 1 and is used to eject the formed tire from the lower mold 5. The receiving cavity 61 is located inside the worktable 1, directly below the lower mold 5, and is a cylindrical cavity with its axis coinciding with the mold cavity axis of the lower mold 5.

[0031] The driving component uses a driving screw 62, one end of which passes through the side of the worktable 1 and extends into the receiving cavity 61 via a thread, while the other end protrudes from the outside of the worktable 1 and is fixedly connected to the operating handle 610. The surface of the operating handle 610 is provided with anti-slip texture (such as annular ridges) to facilitate manual rotation by the operator.

[0032] The transmission component is a wedge-shaped pusher 63 (triangular plate), which is rotatably connected to one end of the drive screw 62 located in the accommodating cavity 61 via a bearing, ensuring that the wedge-shaped pusher 63 moves only axially and does not rotate when the drive screw 62 rotates. A guide limiting component 69 (such as limiting protrusions on both sides) is fixed in the accommodating cavity 61 to restrict the movement direction of the wedge-shaped pusher 63, so that it can only move horizontally along the axis of the drive screw 62.

[0033] The ejection assembly includes an ejection slide rod 64 and a circular ejector plate 65. The ejection slide rod 64 is a cylindrical rod that slides into a through hole at the top of the receiving cavity 61. Its lower end is fixedly connected to a thrust pad 67, and its upper end passes through the bottom of the lower mold 5 and extends into the mold cavity, where it is fixedly connected to the circular ejector plate 65. The diameter of the circular ejector plate 65 is adapted to the size of the groove at the bottom of the lower mold cavity 5 to ensure uniform contact with the bottom of the tire during ejection.

[0034] The elastic reset component is a reset spring 66, which is sleeved on the outside of the ejector slide 64. One end of the spring abuts against the inner wall of the top of the receiving cavity 61, and the other end abuts against the upper surface of the thrust pad 67. When the ejector slide 64 moves downward, the reset spring 66 is compressed and stores energy; when the external force is removed, the reset spring 66 pushes the ejector slide 64 to reset.

[0035] The friction reduction assembly has a friction reduction roller 68 between the thrust pad 67 and the wedge-shaped push block 63. The friction reduction roller 68 is rotatably connected to the surface of the thrust pad 67 via a pin. Its outer circumferential surface rolls and fits against the inclined surface of the wedge-shaped push block 63, converting sliding friction into rolling friction and reducing operating resistance.

[0036] Ejection mechanism workflow:

[0037] After the tire is formed, the operator rotates the operating handle 610 clockwise, driving the screw 62 to move the wedge-shaped pusher 63 into the cavity 61. The inclined surface of the wedge-shaped pusher 63 squeezes the friction-reducing roller 68, pushing the thrust pad 67 upward. The ejector slide rod 64 drives the circular top plate 65 to eject the tire from the lower mold cavity 5.

[0038] After demolding is completed, rotate the operating handle 610 counterclockwise. The wedge-shaped push block 63 moves outward, and the reset spring 66 pushes the push pad 67, the ejector slide 64 and the circular top plate 65 to reset. The circular top plate 65 retracts into the groove at the bottom of the lower mold 5 to avoid affecting the next mold closing.

[0039] The specific structure and working principle of cooling system 7:

[0040] The cooling system 7 is located on one side of the workbench 1 and is used to circulate and cool the lower mold 5 to improve the tire forming efficiency. The cooling water tank 71 is a rectangular container fixed to the side of the workbench 1. A water inlet 72 is opened on the top. A sealing plug 73 (such as a rubber plug) is slidably inserted into the water inlet 72. The sealing plug 73 is connected to the cooling water tank 71 by an anti-detachment pull rope 79 to prevent loss.

[0041] The circulating water pump 77 is installed at the bottom of the cooling water tank 71 and is connected to an external power source via wires to drive the circulation of coolant.

[0042] One end of the water inlet pipe 74 is connected to the outlet of the circulating water pump 77, and the other end passes through the side of the workbench 1 and extends into the lower mold 5, connecting to the inlet of the spiral cooling pipe 76.

[0043] The spiral cooling pipe 76 is made of copper or stainless steel and is spirally coiled around the outer periphery of the mold cavity of the lower mold 5. Its cross-section is spiral, which significantly increases the contact area with the lower mold 5 and improves the heat exchange efficiency.

[0044] One end of the water outlet pipe 75 is connected to the outlet of the spiral cooling pipe 76, and the other end is connected back to the top of the cooling water tank 71, forming a closed loop.

[0045] The pipe fixing ring 78 is a circular clamp that is fixed to the surface of the workbench 1 and sleeved on the outside of the water inlet pipe 74 and the water outlet pipe 75. It is fastened with bolts to prevent the pipe from shaking or falling off.

[0046] Cooling system workflow:

[0047] Coolant (such as water or antifreeze) is injected into the cooling water tank 71, and the water inlet 72 is sealed by the sealing plug 73.

[0048] Start the circulating water pump 77, and the coolant flows into the spiral cooling pipe 76 through the water inlet pipe 74 to absorb the heat generated by the lower mold 5 during the tire forming process. The heated coolant flows back to the cooling water tank 71 through the water outlet pipe 75, and is cooled down by the heat dissipation device (such as heat sink) in the water tank before being recycled.

[0049] The drive screw 62 is made of 45 steel and its surface is hardened to improve its hardness; the wedge-shaped pusher 63, the ejector slide 64 and the circular top plate 65 are all made of stainless steel to prevent rust from affecting demolding.

[0050] The diameter of the spiral cooling pipe 76 is 10-15mm, and the spiral spacing is 20-30mm to ensure uniform cooling; the flow rate of the circulating water pump 77 is 5-10L / min to meet the heat dissipation requirements.

Claims

1. A tire mold with heat dissipation function, comprising a workbench (1), a top plate (2) fixedly connected to the upper surface of the workbench (1), a cylinder (3) fixedly connected to the lower surface of the top plate (2), the output end of the cylinder (3) extending downward and fixedly connected to an upper mold (4), and a lower mold (5) fixedly connected to the upper surface of the workbench (1) below the upper mold (4), characterized in that: The workbench (1) is equipped with an ejection mechanism (6); The ejection mechanism (6) includes: a receiving cavity (61) opened inside the worktable (1); A drive component threadedly connected to the worktable (1), one end of which extends into the accommodating cavity (61) and is connected to a transmission component; An ejector component is slidably disposed in the accommodating cavity (61), one end of which extends into the interior of the lower mold (5) and is connected to a pusher for ejecting the tire, the pusher being adapted to the demolding structure size of the lower mold (5); An elastic reset assembly is used to drive the ejector component to reset.

2. The tire mold with heat dissipation function according to claim 1, characterized in that: The driving component is a driving screw (62), and the transmission component is a wedge-shaped pusher (63) rotatably connected to the driving screw (62); The ejector component is an ejector slide rod (64) that is slidably inserted into the receiving cavity (61), and the support component is a circular top plate (65) fixed to the ejector slide rod (64); The elastic reset component is a reset spring (66) sleeved on the ejector slide (64), with its two ends abutting against the inner wall of the accommodating cavity (61) and the thrust pad (67) fixed to the ejector slide (64), respectively.

3. The tire mold with heat dissipation function according to claim 2, characterized in that: A friction-reducing component is provided between the thrust pad (67) and the wedge-shaped push block (63). The friction-reducing component includes a friction-reducing roller (68) rotatably connected to the thrust pad (67). The friction-reducing roller (68) rolls and fits against the inclined surface of the wedge-shaped push block (63).

4. The tire mold with heat dissipation function according to claim 2, characterized in that: The drive screw (62) extends to one end outside the worktable (1) and is fixedly connected to an operating handle (610). The surface of the operating handle (610) is provided with anti-slip texture.

5. The tire mold with heat dissipation function according to claim 2, characterized in that: A guide limiting member (69) is fixedly connected inside the accommodating cavity (61). The guide limiting member (69) is located on both sides of the wedge-shaped push block (63) to restrict its movement direction.

6. The tire mold with heat dissipation function according to any one of claims 1-5, characterized in that: A cooling system (7) is provided on one side of the workbench (1). The cooling system (7) includes a cooling water tank (71) fixed to the workbench (1), with a water inlet (72) on the top and a sliding sealing plug (73). The circulating cooling assembly includes a circulating water pump (77) installed in the cooling water tank (71), an inlet pipe (74) connected to the circulating water pump (77), a spiral cooling pipe (76) coiled inside the lower mold (5), and an outlet pipe (75) connected to the spiral cooling pipe (76), the outlet pipe (75) being connected back to the cooling water tank (71).

7. The tire mold with heat dissipation function according to claim 6, characterized in that: The sealing plug (73) is fixedly connected to the cooling water tank (71) by the anti-detachment pull rope (79), and the cross-section of the spiral cooling pipe (76) is spiral to increase the heat exchange area.

8. The tire mold with heat dissipation function according to claim 6, characterized in that: A pipe fixing ring (78) is fixedly connected to the surface of the workbench (1). The pipe fixing ring (78) is sleeved on the outside of the water inlet pipe (74) and the water outlet pipe (75) to limit the pipe shaking.

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