A vulcanization mold for a rubber vibration isolator and a working method thereof

Abstract

The present invention discloses a vulcanization mold for a rubber vibration isolator, wherein a main circular groove is provided on the mold opening surface of the base mold, a transition mold is inserted into the main circular groove, a secondary circular groove is provided on the end surface of the transition mold away from the main circular groove for inserting a mold core, a plurality of working grooves are provided on the inner circumference of the secondary circular groove, the product cavity of the mold core is directly opposite to the working groove, a telescopic adjustment member is provided in the working groove, a partition is provided at one end of the telescopic adjustment member away from the working groove, when the telescopic adjustment member is reset, the surface of the partition is coplanar with the inner circumference of the secondary circular groove; the base mold is provided with a vent pipe connected to the working groove, when the telescopic adjustment member adjusts the partition to move toward the working groove, there is a gap between the end surface of the partition away from the working groove and the inner circumference of the secondary circular groove, and the gap is connected to the working groove. By adopting the above arrangement, the effect of improving operation quality and work efficiency is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of rubber vibration isolator mold technology, and in particular to a vulcanization mold of a rubber vibration isolator and a working method thereof. Background Art

[0002] Most of the existing rubber products are vulcanized rubber. After the rubber is vulcanized, a three-dimensional structure is formed in the raw rubber, which has high elasticity, heat resistance, tensile strength and solubility in organic solvents. Rubber isolators are rubber-supported isolators that can be used in a compressed state or in a shear state. Rubber isolators are usually made by corresponding molds, which include a power die and a base die. The open mold surface of the base die is embedded with a mold core; a discharge die is detachably installed on the side of the core away from the base die, and a feed trough is opened on the end face of the discharge die away from the base die. The product chambers of the discharge die and the core are interconnected through an injection channel; the power die is connected to a pressure cylinder, and the pressure cylinder is plugged and adapted to the feed trough of the discharge die.

[0003] When the isolator product is formed by compression molding, the base mold is fixed at the fixed end, the power mold is connected to the pushing end of the power source, and then the rubber raw material (rubber compound) is put into the feed trough. Then, under the power of the power source, the power mold is moved toward the feed trough of the discharge mold, so that the pressure cylinder is inserted into the feed trough, and the rubber raw material inside is squeezed into the product chamber of the mold core through the injection channel. Under the conditions of high temperature and high pressure, the rubber raw material and the sulfur or carbon black added inside are vulcanized once, thereby forming the corresponding rubber isolator product.

[0004] Regarding the above molds used to form rubber raw materials into rubber isolators, a certain amount of sulfur or carbon black is usually added to the rubber raw materials with high fluidity, and primary vulcanization is achieved under high temperature and high pressure in the mold. Although this method can improve the physical properties of the rubber, such as elasticity, heat resistance, and tensile strength, for some rubber isolators with high requirements for physical properties and high requirements for surface smoothness and quality, it is necessary to take out the rubber isolator from the mold and put it into an oven for secondary vulcanization to further cross-link the rubber isolator, thereby achieving improved mechanical properties and compression permanent deformation properties. However, in the process of transferring rubber products, sometimes the surface of the rubber products may be deformed, thereby reducing product quality. At the same time, the transfer operation also reduces work efficiency. In the prior art, there is no function that can perform secondary vulcanization after the vulcanized rubber product is formed under high temperature and high pressure in the mold. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a vulcanization mold for a rubber isolator and a working method thereof, which can realize that after the rubber raw material is vulcanized once in the vulcanization mold to form a relatively cross-linked rubber isolator product (rubber product), it can also be secondary vulcanized inside through waste heat and vulcanizing gas, thereby further improving the mechanical properties and compression permanent deformation properties of the rubber product, and can reduce the frequent transfer operations of the rubber product, thereby achieving the effect of improving operation quality and work efficiency.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] A vulcanization mold for a rubber vibration isolator comprises a base mold and a pressure mold, wherein a mold core is embedded in the mold opening surface of the base mold, a feed mold is arranged on the end surface of the mold core away from the base mold, a feed groove is arranged on the end surface of the feed mold away from the mold core, the feed groove is communicated with the product cavity of the mold core through a glue inlet, the pressure mold is provided with a pressure cylinder, the pressure cylinder is plugged and matched with the feed groove, and a heating ring is arranged on the outer peripheral surface of the base mold; a main circular groove is arranged on the mold opening surface of the base mold, a transition mold is plugged into the main circular groove, and a hole for inserting the mold core is arranged on the end surface of the transition mold away from the main circular groove A secondary circular groove, the inner circumferential surface of the secondary circular groove is provided with a plurality of working grooves, the product cavity of the mold core is directly opposite to the working groove, a telescopic adjusting member is provided in the working groove, a partition is provided at one end of the telescopic adjusting member away from the working groove, when the telescopic adjusting member is reset, the surface of the partition is coplanar with the inner circumferential surface of the secondary circular groove; the base mold is provided with a vent pipe connected with the working groove, when the telescopic adjusting member adjusts the partition to move toward the working groove, there is a gap between the end surface of the partition away from the working groove and the inner circumferential surface of the secondary circular groove, and the gap is connected with the working groove.

[0008] Furthermore, the telescopic adjustment member includes a fixed tube at one end fixedly connected to the end surface of the partition facing the working groove, the other end of the fixed tube is plugged with a connecting rod, the end of the connecting rod away from the fixed tube is fixedly connected to a connecting plate, the connecting plate is connected to the inner wall of the working groove, the fixed tube and the connecting rod are plugged with the same spring, the two ends of the spring are respectively connected to the positive and negative ends of the power supply, and the two ends of the spring are respectively connected to the partition and the connecting plate.

[0009] Furthermore, a first slope is provided on the inner wall of the working groove near its groove opening, and the first slope is inclined on one side close to the working groove and away from the working groove, and the end face of the partition facing the first slope is coplanar with the first slope and fits with each other.

[0010] Furthermore, a rotating member is provided on the inner bottom surface of the main circular groove, and the rotating end of the rotating member rotates coaxially with the transition mold, the mold core is connected to the transition mold, and a guide rod is fixedly connected to the side surface of the partition facing the working groove, and a second inclined surface is provided on the end surface of the guide rod away from the partition, the second inclined surface is parallel to the first inclined surface, and the inclination direction of the second inclined surface is consistent with that of the first inclined surface, and a straight groove is penetrated on the inner bottom surface of the working groove for the guide rod to be inserted, the guide rod does not protrude from the outer circumferential surface of the transition mold through the straight groove, and there is a distance between the guide rod and the inner wall of the second inclined surface of the straight groove away from the guide rod; a through groove is penetrated on the inner circumferential surface of the base mold, and the through groove is The straight grooves are on the same horizontal plane, a pushing cylinder is provided on the outer peripheral surface of the base mold, a pushing rod is connected to the protruding end of the pushing cylinder, a third inclined surface is provided on the end surface of the pushing rod away from the pushing cylinder, the third inclined surface is parallel to the second inclined surface, and the inclination directions of the third inclined surface and the second inclined surface are relatively arranged; when the straight groove is rotated by the rotating part to face the through groove, the pushing cylinder pushes the pushing rod to move toward the guide rod until the third inclined surface of the pushing rod abuts against the second inclined surface of the guide rod, and under the restriction of the mold core and the product in its product cavity, the partition of the guide rod moves along the inclination direction of the third inclined surface toward the direction close to the pushing cylinder.

[0011] Furthermore, a fourth inclined surface is provided on the bottom surface of the working groove at a position corresponding to the telescopic adjustment member, and the fourth inclined surface is inclined on a side close to the secondary circular groove along a direction close to the notch of the working groove. The fourth inclined surface is integrally connected with a slide rail, and the slide rail extends along the inclination direction of the fourth inclined surface and toward the notch of the secondary circular groove, and the connecting plate is slidably connected to the slide rail at the end face away from the connecting rod.

[0012] Furthermore, the outer circumferential surface of the transition mold is fitted with the inner circumferential surface of the base mold, an air inlet hole is penetrated through the inner bottom surface of the working groove, an air vent is penetrated through the inner circumferential surface of the main circular groove, a ventilation ring groove is provided on the inner circumferential surface of the main circular groove, the ventilation ring groove is connected with the air vent and the air inlet hole, the ventilation pipe is outside the base mold and connected with the ventilation hole; an air outlet hole is provided on the side of the outer circumferential surface of the base mold away from the ventilation pipe, and the air outlet hole is connected with the ventilation ring groove.

[0013] Furthermore, the mold core and the transition mold are coplanarly arranged on the top surface facing the secondary circular groove notch, and the top surface of the mold core is provided with a cover plate, which covers the top surface of the transition mold, and the cover plate is locked and connected to the top surface of the transition mold by bolts.

[0014] Furthermore, an annular table is integrally connected to the inner circumferential surface of the main circular groove near its inner bottom surface, the transition mold is supported on the annular table, the rotating member includes a driving gear and a transmission gear that are both rotatably connected to the inner bottom surface of the annular table, the transmission gear and the driving gear are meshed, a driving motor is provided on the side of the base mold away from the feeding mold, the driving shaft of the driving motor passes through the base mold away from the bottom surface of the feeding mold and rotates coaxially with the rotating shaft of the driving gear, the rotating shaft of the transmission gear rotates coaxially with a limiting block, and the limiting block is plugged into the bottom surface of the transition mold.

[0015] A working method of a vulcanization mold for a rubber vibration isolator comprises the following steps:

[0016] Loading work: put the mold core into the secondary circular groove, the feed mold is bolted through the cover plate and then locked and installed with the base mold, the base mold is installed on the base bracket, the heating ring is started by the circuit to the corresponding temperature to preheat the mold core and the transition mold, and the power mold is installed at the driving end of the power source, and then the rubber raw material is put into the feed groove of the feed mold.

[0017] Pressing die working: Start the power source to drive the pressure die toward the feed die, the pressure cylinder is plugged into the feed trough, and at the same time, the rubber raw material in the feed trough is squeezed into the product cavity of the mold core through the rubber inlet until the product cavity of the mold core is filled with rubber raw materials.

[0018] High temperature and high pressure vulcanization work: adjust the die pressure of the power source and adjust the temperature of the heating ring at the same time to make the rubber raw materials in the product cavity of the mold core undergo vulcanization and cross-linking until the rubber raw materials in the product cavity of the mold core are stably molded.

[0019] Residual heat vulcanization work: After the high-temperature and high-pressure vulcanization work is completed, the heating of the heating ring is stopped, and a high-voltage DC power supply is passed to both ends of the spring. The spring contracts under the action of power on, pulling the partition to move toward the direction close to the working groove, so that there is a gap between the partition and the inner circumference of the secondary circular groove. The gap is directly opposite to the product cavity of the mold core. At the same time, there is a gap between the end face of the partition facing the first inclined surface and the first inclined surface. The gap between the partition and the inner circumference of the secondary circular groove is connected to the working groove through the gap between the partition and the first inclined surface; then vulcanizing gas is introduced into the vent hole, and the vulcanizing gas enters the working groove through the vent hole, the vent ring groove and the air inlet hole, and then enters the gap between the partition and the product cavity of the mold core, and the vulcanizing gas is used to perform secondary preliminary vulcanization on the rubber product formed in the product cavity of the mold core.

[0020] During the residual heat vulcanization work, and after the secondary preliminary vulcanization is completed, stop supplying high-voltage current to all springs, and the spring reset pushes the partition until the end face of the partition away from the working groove is coplanar with the inner circumference of the secondary circular groove, and abuts against the rubber product in the product cavity of the mold core; then, start the drive motor to rotate, and drive the transmission gear and the transition mold to rotate under the transmission action of the drive gear, until the straight groove of the working groove is directly opposite to the through groove of the base mold, and supply high-voltage power to the spring in the working groove directly opposite to the through groove, and at the same time start the push cylinder to push the push rod to move toward the guide rod, until the push rod enters the straight groove and its third inclined surface abuts against the second inclined surface of the guide rod, and the partition of the guide rod is in the mold core and its product cavity. Under the restraint of the rubber product and the guidance of the spring's contraction and pulling, the guide rod moves along the inclination direction of the third inclined surface toward the direction close to the push cylinder, and the partition is fitted with the first inclined surface and moves along the inclination direction of the first inclined surface toward the working groove, so that there is a gap between the end face of the partition away from the first inclined surface and the inner wall of the working groove, and the gap between the partition and the inner circumference of the secondary circular groove is increased, so that the gap is filled with more vulcanized gas, so that the rubber product facing the working groove can be fully vulcanized and cross-linked for the second time; according to this preheating and vulcanization work, the transition mold is continuously rotated by the driving motor so that the straight groove of each working groove is facing the through groove, and the secondary full vulcanization and cross-linking are completed.

[0021] Rubber product removal work: turn off the power source to restore the pressure mold to its initial position. After the entire mold returns to room temperature, remove the bolts between the feed mold, cover plate and base mold, then remove the mold core, and remove the corresponding screws on the mold core as needed to remove the rubber product.

[0022] The present invention has the following beneficial effects:

[0023] 1. A vulcanization mold for a rubber vibration isolator is designed to vulcanize the rubber raw material (rubber compound) once in the vulcanization mold to form a relatively cross-linked rubber vibration isolator product, and then perform secondary vulcanization inside through residual heat and vulcanization gas (the vulcanization gas can be hot air or other gas that can be secondary vulcanized), thereby further improving the mechanical properties and compression permanent deformation properties of the rubber product, and reducing the frequent transfer operation of the rubber product, thereby achieving the effect of improving the operation quality and work efficiency. Therefore, a feed mold is set to facilitate the placement of rubber raw materials into the feed groove therein, and under the power of the power source, the pressure mold is moved toward the feed mold, so that the pressure cylinder is inserted into the feed groove and squeezes the rubber raw materials inside, and the rubber raw materials enter the product cavity of the mold core through the rubber inlet under the action of pressure. Under the action of the high pressure, and by using the heating ring to heat the base mold, the transition mold and the mold core, the rubber raw materials in the product cavity of the mold core are vulcanized and cross-linked once, thereby forming a relatively stable rubber product with improved physical properties.

[0024] 2. The vulcanization mold of the present invention is provided with a transition mold in the main circular groove so that the transition mold is located between the base mold and the mold core, so as to facilitate further secondary vulcanization operation. Specifically, a working groove is provided on the inner circumference of the secondary circular groove, and a telescopic adjustment member is provided in the working groove. Through the adjustment effect of the telescopic adjustment member, when the telescopic adjustment member is contracted, the partition can be moved toward the working groove, so that there is a certain gap between the partition and the inner circumference of the secondary circular groove, and after the partition moves inward, the gap generated will also be connected with the working groove, so that the gap is also connected with the vent pipe, thereby, by discharging vulcanized gas into the vent pipe and stopping heating by the heating ring, the rubber product in the product cavity of the mold core can be subjected to secondary vulcanization and cross-linking. In addition, during the secondary vulcanization process, the operation of secondary vulcanization can be carried out after the primary vulcanization without opening the mold, thereby reducing the removal of the rubber product after opening the mold and then carrying out the secondary vulcanization, thereby achieving the beneficial effects of reducing the transfer and handling of the rubber product, reducing the damage of the rubber product during the transfer process and improving the work efficiency.

[0025] 3. A working method of a vulcanization mold for a rubber vibration isolator, which mainly consists of feeding work, die pressing work, high-temperature and high-pressure vulcanization work, residual heat vulcanization work, and rubber product removal work; wherein the feeding work mainly realizes the installation operation of the pressure mold and the base mold, and places the corresponding rubber raw materials at the same time; the die pressing work mainly pushes the placed rubber raw materials into the product cavity of the mold core through a power source, thereby realizing the effect of high-pressure molding; the high-temperature and high-pressure vulcanization work mainly performs a vulcanization and cross-linking of the rubber raw materials under high pressure and high temperature of the heating ring, thereby achieving the effect of preliminarily improving the mechanical and physical properties of the rubber product; the residual heat vulcanization work mainly uses the heating ring to heat the mold core in the case of opening the mold to generate preheating, and through the shrinkage adjustment of the elastic adjustment part, a gap is generated between each partition and the inner circumference of the secondary circular groove, and vulcanized gas is introduced into each working groove through a vent pipe, so that the vulcanized gas is filled in the gap between the partition and the inner circumference of the secondary circular groove, thereby realizing the function of secondary preliminary vulcanization; finally, the rubber product that has completed primary vulcanization and secondary vulcanization is removed through the rubber product removal work. According to the above working method, the primary vulcanization and secondary vulcanization are completed before the vulcanization mold is opened, and the transportation work of taking out the rubber product after the primary vulcanization and then performing the secondary vulcanization through related equipment is reduced, thereby achieving the beneficial effects of reducing damage to the rubber product during transportation and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 It is an exploded view of the overall structure of the present invention.

[0028] Figure 3 It is an exploded view from another perspective of the overall structure of the present invention.

[0029] Figure 4 It is a cross-sectional view of the overall structure of the present invention.

[0030] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0031] Figure 6 It is a cross-sectional view of the installation structure of the base mold and the transition mold of the present invention.

[0032] Figure 7 for Figure 6 A partial enlarged view of point B in the middle.

[0033] Figure 8 It is a cross-sectional view of the base mold of the present invention.

[0034] Fig. 9 It is a cross-sectional view of the transition mold of the present invention.

[0035] In the figure: 1, base mold; 10, annular table; 11, through groove; 12, ventilation pipe; 13, ventilation hole; 131, ventilation ring groove; 14, main circular groove; 15, push cylinder; 16, guide rod; 17, third inclined surface; 18, heating ring; 19, air outlet; 2, bottom plate; 21, driving motor; 22, driving gear; 23, transmission gear; 24, limit block; 3, transition mold; 31, working groove; 3 2. First inclined plane; 33. Fourth inclined plane; 34. Slide rail; 35. Straight groove; 36. Air inlet; 37. Secondary circular groove; 4. Partition plate; 41. Guide rod; 42. Second inclined plane; 43. Fixed tube; 44. Connecting rod; 45. Connecting plate; 46. Spring; 5. Mold core; 51. Cover plate; 52. Product cavity; 6. Feed mold; 61. Feed trough; 62. Glue inlet; 7. Pressure mold; 71. Pressure cylinder. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The terms such as "upper", "inner", "middle", "left", "right" and "one" cited in this specification are only for the convenience of description, and are not used to limit the scope of the present invention. The change or adjustment of their relative relationship shall also be regarded as the scope of the present invention without substantially changing the technical content.

[0037] Reference Figures 1 to 9As shown, a vulcanization mold for a rubber vibration isolator includes a base mold 1 and a pressure mold 7. A mold core 5 is embedded in the open mold surface of the base mold 1. A feed mold 6 is provided on the end surface of the mold core 5 away from the base mold 1. A feed groove 61 is provided on the end surface of the feed mold 6 away from the mold core 5. The feed groove 61 is connected to the product cavity 52 of the mold core 5 through a glue inlet 62. The pressure mold 7 is provided with a pressure cylinder 71, which is plugged and matched with the feed groove 61, and a heating ring 18 is provided on the outer peripheral surface of the base mold 1. The open mold surface of the base mold 1 is provided with a main circular groove 14, and the main circular groove 14 is plugged with a transition mold 3. The end surface of the transition mold 3 away from the main circular groove 14 is provided with a secondary circular groove 37 for inserting the mold core 5. The inner circumference of the secondary circular groove 37 is provided with a plurality of working grooves 31. The product cavity 52 of the mold core 5 is directly opposite to the working groove 31. In this embodiment, the number of working grooves 31 is eight, and these eight working grooves 31 are arranged at equal angles along the circumferential direction with respect to the axis of the secondary circular groove 37, and there are intervals between adjacent working grooves 31, and the notches of these eight working grooves 31 can correspond to the product cavity 52 of the mold core 5 in a large range. A telescopic adjustment member is provided in the working groove 31, and a partition 4 is provided at one end of the telescopic adjustment member away from the working groove 31. When the telescopic adjustment member is reset, the surface of the partition 4 is coplanar with the inner circumference of the secondary circular groove 37. The base mold 1 is provided with a ventilation pipe 12 connected to the working groove 31. When the telescopic adjustment member adjusts the partition 4 to move toward the working groove 31, a gap exists between the end surface of the partition 4 away from the working groove 31 and the inner circumferential surface of the secondary circular groove 37, and the gap is connected to the working groove 31.

[0038] It is particularly noted that the vulcanization mold of the present invention is only for the case where the product cavity 52 of the core 5 is directly opposite to the inner circumference of the secondary circular groove 37. Therefore, the product cavity 52 of the core 5 designed needs to be connected to the outer circumference of the core 5, and when the core 5 is installed, the shape of the space formed between the product cavity 52 of the core 5 and the inner circumference of the secondary circular groove 37 is consistent with the shape of the rubber product to be produced. At the same time, the rubber product of this embodiment is annular, which can be combined with the core 5 to form the required rubber isolator, and the core 5 can also be designed as a detachable structure, that is, the plate at the bottom can be threaded and disassembled, and the internal annular rubber product can be taken out as a rubber isolator.

[0039] Specifically, the present invention aims to vulcanize the rubber raw material (rubber compound) in the vulcanization mold to form a relatively cross-linked rubber vibration isolator product, and then perform secondary vulcanization inside through residual heat and vulcanization gas (the vulcanization gas can be hot air or other gases that can be secondary vulcanized), so as to further improve the mechanical properties and compression permanent deformation properties of the rubber product, and reduce the frequent transfer operation of the rubber product, so as to achieve the effect of improving the operation quality and work efficiency. Therefore, by setting the feed mold 6, it is convenient to put the rubber raw material into the feed groove 61 therein, and under the power of the power source, the pressure mold 7 is moved toward the feed mold 6, so that the pressure cylinder 71 is inserted into the feed groove 61 and squeezes the rubber raw material inside, and the rubber raw material enters the product cavity 52 of the mold core 5 through the rubber inlet 62 under the action of pressure. Under the action of the high pressure, and by using the heating ring 18 to heat the base mold 1, the transition mold 3 and the mold core 5, the rubber raw material in the product cavity 52 of the mold core 5 is vulcanized and cross-linked once, so as to form a relatively stable rubber product with improved physical properties.

[0040] At the same time, by setting the transition mold 3 in the main circular groove 14, the transition mold 3 is located between the base mold 1 and the mold core 5, so as to facilitate further secondary vulcanization operations. Specifically, by setting the working groove 31 on the inner circumference of the secondary circular groove 37, and setting the telescopic adjustment member in the working groove 31, through the adjustment of the telescopic adjustment member, when the telescopic adjustment member is contracted, the partition 4 can be moved toward the working groove 31, so that there is a certain gap between the partition 4 and the inner circumference of the secondary circular groove 37, and after the partition 4 moves inward, the gap generated will also be connected to the working groove 31, and then the gap is connected to the vent pipe 12 at the same time, thereby, by discharging the vulcanized gas into the vent pipe 12 and stopping the heating of the heating ring 18, the rubber product in the product cavity 52 of the mold core 5 can be subjected to secondary vulcanization and cross-linking. Furthermore, during the secondary vulcanization process, there is no need to open the mold, and the secondary vulcanization operation can be carried out after the primary vulcanization, thereby reducing the time of taking out the rubber product after opening the mold and then carrying out the secondary vulcanization, thereby achieving the beneficial effects of reducing the transfer and handling of rubber products, reducing damage to rubber products during the transfer process and improving work efficiency.

[0041] Reference Figures 1 to 9As shown, in order to realize the function of adjusting the telescopic adjustment member to achieve stable adjustment of telescopic. The telescopic adjustment member includes a fixed tube 43 with one end fixedly connected to the end surface of the partition 4 facing the working groove 31, and the other end of the fixed tube 43 is plugged with a connecting rod 44, and the end of the connecting rod 44 away from the fixed tube 43 is fixedly connected with a connecting plate 45, and the connecting plate 45 is connected to the inner wall of the working groove 31. The fixed tube 43 and the connecting rod 44 are plugged with the same spring 46, and the two ends of the spring 46 are respectively connected to the positive and negative ends of the power supply, and the two ends of the spring 46 are respectively fixedly connected to the partition 4 and the connecting plate 45. Among them, by setting the connecting rod 44 and the fixed tube 43 to be plugged, the bending of the spring 46 during the telescopic process can be improved, and the situation of the telescopic direction being offset can be achieved, thereby achieving the effect of improving the stability of the telescopic direction. At the same time, the two ends of the spring 46 are connected to the positive and negative poles of the power supply, and the power supply size is controlled by the circuit, so as to submit the contraction strength of the spring 46, and then achieve the effect of adjusting the spring 46 to pull the partition 4 into the working groove 31. Move the distance.

[0042] In order to realize the function of connecting the gap between the partition plate 4 and the inner circumference of the secondary circular groove 37 to the working groove 31 after the spring 46 contracts and pulls the partition plate 4 to move into the working groove 31. The inner top wall of the working groove 31 near its notch is provided with a first inclined surface 32, and the first inclined surface 32 is inclined upwardly in a direction away from the working groove 31 on one side near the working groove 31, and the end surface of the partition plate 4 facing the first inclined surface 32 is coplanar with the first inclined surface 32 and fits with each other. Due to the setting of the first inclined surface 32, when the spring 46 is powered on, according to the principle of electromagnetism, the spring 46 contracts and pulls the partition plate 4 to move into the working groove, and the top surface of the partition plate 4 and the first inclined surface 32 are initially fit with each other, so that in the process of horizontal inward movement, a gap is generated between the top surface of the partition plate 4 and the first inclined surface 32, so that the gap between the partition plate 4 and the inner circumference of the secondary circular groove 37 is connected to the working groove 31 through the gap between the partition plate 4 and the first inclined surface 32.

[0043] Because the above is mainly through the power-on contraction function of the spring 46, the partition 4 is pulled into the working groove 31, and the gap between the partition 4 and the rubber product of the core 5 is generated. However, due to the excessive adhesion between the rubber product in the core 5 and the partition 4, it is sometimes difficult to pull the partition 4, which will cause the spring 46 to pull the process for a long time, and sometimes there will be a problem of a small gap between the partition 4 and the inner circumference of the secondary circular groove 37. Therefore, in order to more conveniently and quickly pull the partition 4 into the working groove 31, and to be able to pull the partition 4 into the working groove 31 to the required distance, so that the gap between the partition 4 and the inner circumference of the secondary circular groove 37 is increased, so as to facilitate the function of full vulcanization and cross-linking. Therefore, the following further structural improvements are made.

[0044] The inner bottom surface of the main circular groove 14 is provided with a rotating member, the rotating end of the rotating member rotates coaxially with the transition mold 3, the mold core 5 is connected to the transition mold 3, and the connecting plate 45 is slidably connected to the inner bottom surface of the working groove 31, and the sliding of the connecting plate 45 slides along the notch direction close to the secondary circular groove 37. The side surface of the partition 4 facing the inside of the working groove 31 is fixedly connected with a guide rod 41, and the end surface of the guide rod 41 away from the partition 4 is provided with a second inclined surface 42, the second inclined surface 42 is parallel to the first inclined surface 32, and the second inclined surface 42 and the first inclined surface 32 are inclined in the same direction, and the inner bottom surface of the working groove 31 is penetrated by a straight groove 35 for the guide rod 41 to be inserted, the guide rod 41 does not protrude from the outer peripheral surface of the transition mold 3 through the straight groove 35, and there is a gap between the guide rod 41 and the inner top wall of the second inclined surface 42 of the straight groove 35 away from the guide rod 41. The inner circumference of the base mold 1 is penetrated by a through groove 11, which is on the same horizontal plane as the straight groove 35. In this embodiment, there are four through grooves 11, and the four through grooves 11 are arranged at equal angles along the circumferential direction with respect to the axis of the main circular groove 14. The outer circumference of the base mold 1 is provided with a push cylinder 15, which can be a pneumatic cylinder, a hydraulic cylinder or a motor actuator cylinder. The protruding end of the push cylinder 15 is fixedly connected with a guide rod 16, and the end surface of the guide rod 16 away from the push cylinder 15 is provided with a third inclined surface 17, which is parallel to the second inclined surface 42, and the third inclined surface 17 and the second inclined surface 42 are arranged in opposite directions. When the straight groove 35 rotates to be opposite to the through groove 11 under the rotation of the rotating part, the pushing cylinder 15 pushes the pushing rod 16 to move toward the guide rod 41 until the third inclined surface 17 of the pushing rod 16 abuts against the second inclined surface 42 of the guide rod 41. Under the restriction of the mold core 5 and the product in its product cavity 52, the partition 4 of the guide rod 41 moves along the inclination direction of the third inclined surface 17 toward the direction close to the pushing cylinder 15.

[0045] According to the above design of the guide rod 41 and the push rod 16, when the base mold 1 and the mold core 5 are in a relatively fixed state, due to the reset effect of the spring 46 and the limiting effect of the mold core 5 and the product in the mold core 5, through the rotation effect, the four straight grooves 35 of the transition mold 3 are directly opposite to the four through grooves 11 of the base mold 1, and the push cylinder 15 is used to push the push rod 16 into the straight groove 35, and the inclination direction of the third inclined surface 17 of the push rod 16 is opposite to the inclination direction of the second inclined surface 42 of the guide rod 41, so when the push rod 16 is pushed into the second inclined surface 42 of the guide rod 41 42 and the inner wall of the straight groove 35, the third inclined surface 17 of the push rod 16 and the second inclined surface 42 of the guide rod 41 are fitted with each other, and when the push rod 16 continues to push into the straight groove 35, the guide rod 41 will compress the spring 46 and move toward the direction close to the push cylinder 15 along the guiding effect of the third inclined surface 17. At the same time, due to the guiding effect of the third inclined surface 17 and the first inclined surface 32, the second inclined surface 42 and the third inclined surface 17 are parallel to each other, the top surface of the partition 4 will be synchronously moved toward the direction close to the push cylinder 15 along the inclined direction of the first inclined surface 32. At the same time, when power is supplied to the spring 46, the guide rod 41 can reduce the elastic reaction of the spring 46, so that the guiding and pushing work of driving the partition 4 toward the working groove 31 is smoother. Afterwards, when driving the partitions 4 in other working grooves 31 to move into the working groove 31, it is only necessary to rotate the transition mold 3 forty-five degrees and then perform the above operation to complete the guiding and pushing work of all the partitions 4. Through the arrangement of multiple through grooves 11 and working grooves 31, it is possible to use the partition 4 for mold pressing while also being able to move the partition 4 to introduce sulfide gas into the gap generated to perform secondary vulcanization and cross-linking operations.

[0046] Reference Figures 1 to 9As shown, in the above operation of moving the partition 4 along the first inclined surface 32 toward the direction close to the push cylinder 15 through the guiding effect of the third inclined surface 17 of the push rod 16 of the push cylinder 15 and the second inclined surface 42 of the guide rod 41, the fixing tube 43 and the connecting rod 44 will move synchronously along the direction close to the notch of the secondary circular groove 37, in order to reduce the problem of resistance generated by the sliding of the connecting plate 45 between the inner bottom surface of the working groove 31. A fourth inclined surface 33 is arranged at the position of the inner bottom surface of the working groove 31 corresponding to the telescopic adjustment member, and the side of the fourth inclined surface 33 close to the secondary circular groove 37 is inclinedly arranged in the direction close to the notch of the working groove 31. The fourth inclined surface 33 is integrally connected with the slide rail 34, and the slide rail 34 extends along the inclination direction of the fourth inclined surface 33 and toward the notch of the secondary circular groove 37. The end surface of the connecting plate 45 away from the connecting rod 44 is slidably connected to the slide rail 34. Therefore, when the partition 4 moves into the working groove 31 under the guidance of the push rod 16 and the guide rod 41, the connecting plate 45 can slide toward the notch of the secondary circular groove 37 under the guidance of the inclined surface of the fourth inclined surface 33, thereby improving the sliding smoothness and reducing the sliding resistance, thereby further achieving the beneficial effect of pulling the partition 4 into the working groove 31 to move quickly and improve work efficiency.

[0047] In order to realize the function of connecting the vent pipe 12 with the working groove 31. The outer circumference of the transition mold 3 is in contact with the inner circumference of the base mold 1, the inner bottom surface of the working groove 31 is penetrated with an air inlet 36, the inner circumference of the main circular groove 14 is penetrated with an air vent 13, and the inner circumference of the main circular groove 14 is provided with an air annular groove 131, which is connected with the air vent 13 and the air inlet 36. The vent pipe 12 is outside the base mold 1 and connected with the vent 13. The outer circumference of the base mold 1 is provided with an air outlet 19 on the side away from the vent pipe 12, and the air outlet 19 is connected with the air annular groove 131. As described above, since there are multiple working grooves 31 in the present invention, in order to synchronously introduce the sulfiding gas into the multiple working grooves 31, the ventilation annular groove 131 is provided to communicate with the multiple air inlet holes 36, so that the sulfiding gas introduced from the vent pipe 12 to the air hole 13 can enter each working groove 31 through the ventilation annular groove 131. At the same time, by providing the air outlet hole 19, the gas circulation is realized, the cooling of the introduced sulfiding gas is reduced, and the continuous introduction of the sulfiding gas can achieve the function of improving the quality of the sulfidation.

[0048] In order to realize the function of connecting the core 5 with the transition mold 3. The top surfaces of the core 5 and the transition mold 3 facing the notch of the secondary circular groove 37 are arranged in the same plane, and the top surface of the core 5 is provided with a cover plate 51, which covers the top surface of the transition mold 3, and the cover plate 51 is locked and connected with the top surface of the transition mold 3 by bolts, and the top surface of the base mold 1 is arranged in the same plane with the top surface of the cover plate 51, and the feed mold 6 is locked and connected with the top surface of the base mold 1 by bolts. Thus, by connecting the core 5 with the transition mold 3, the core 5 is driven to rotate by the rotating member, so that the straight grooves 35 in multiple different working grooves 31 are aligned with the same through groove 11 of the base mold 1, and through the pushing action of the pushing cylinder 15, when the partition 4 moves toward the working groove 31, each working groove 31 can correspond to the corresponding position in the product cavity 52 of the core 5, so as to achieve the effect of secondary vulcanization cross-linking, and then realize the effect of using the working groove 31 to perform secondary vulcanization on most positions of the rubber product in the core 5.

[0049] In order to realize the function of the rotating member driving the transition mold 3 and the mold core 5 to rotate. The inner circumference of the main circular groove 14 near its inner bottom surface is integrally connected with the annular table 10, and the transition mold 3 is supported on the annular table 10. The rotating member includes a driving gear 22 and a transmission gear 23 both rotatably connected to the inner bottom surface of the annular table 10. The transmission gear 23 meshes with the driving gear 22. The side of the base mold 1 away from the feed mold 6 is connected to the bottom plate 2 by bolt locking. The end surface of the bottom plate 2 away from the base mold 1 is embedded with a driving motor 21. The driving shaft of the driving motor 21 passes through the bottom surface of the base mold 1 away from the feed mold 6 and rotates coaxially with the rotating shaft of the driving gear 22. The rotating shaft of the transmission gear 23 rotates coaxially with the limiting block 24, and the limiting block 24 is plugged with the bottom surface of the transition mold 3.

[0050] A working method of a vulcanization mold for a rubber vibration isolator comprises the following steps:

[0051] Loading work: put the mold core 5 into the secondary circular groove 37, the feed mold 6 is bolted through the cover plate 51 and then locked and installed together with the base mold 1, the base mold 1 is installed on the base bracket, and the heating coil 18 is started by the circuit to the corresponding temperature to preheat the mold core 5 and the transition mold 3, and at the same time, the power mold is installed at the driving end of the power source, and then the rubber raw material is put into the feed groove 61 of the feed mold 6.

[0052] The compression mold works by starting the power source to drive the pressure mold 7 toward the feed mold 6, and the pressure cylinder 71 is plugged into the feed groove 61. At the same time, the rubber raw material in the feed groove 61 is squeezed into the product cavity 52 of the mold core 5 through the rubber inlet 62 until the product cavity 52 of the mold core 5 is filled with rubber raw materials.

[0053] High temperature and high pressure vulcanization work: adjust the compression molding pressure of the power source and adjust the temperature of the heating ring 18 at the same time, so that the rubber raw material in the product cavity 52 of the mold core 5 is vulcanized and cross-linked, until the rubber raw material in the product cavity 52 of the mold core 5 is stably molded.

[0054] Residual heat vulcanization work: After the high-temperature and high-pressure vulcanization work is completed, the heating of the heating ring 18 is stopped, and a high-voltage DC power supply is passed to both ends of the spring 46. The spring 46 contracts under the action of power on, pulling the partition 4 to move toward the direction close to the working groove 31, so that there is a gap between the partition 4 and the inner circumference of the secondary circular groove 37, and the gap is directly opposite to the product cavity 52 of the mold core 5. At the same time, there is a gap between the end face of the partition 4 facing the first inclined surface 32 and the first inclined surface 32. The gap between the partition 4 and the inner circumference of the secondary circular groove 37 is connected to the working groove 31 through the gap between the partition 4 and the first inclined surface 32; then, vulcanizing gas is introduced into the vent 13, and the vulcanizing gas enters the working groove 31 through the vent 13, the vent ring groove 131 and the air inlet 36, and then enters the gap between the partition 4 and the product cavity 52 of the mold core 5, and the rubber product formed in the product cavity 52 of the mold core 5 is subjected to secondary preliminary vulcanization by using the vulcanizing gas.

[0055] Rubber product removal work: turn off the power source to restore the pressure mold 7 to its initial position. After the entire mold returns to room temperature, remove the bolts between the feed mold 6, the cover plate 51 and the base mold 1, and then remove the core 5. Remove the corresponding screws on the core 5 as needed and then take out the rubber product.

[0056] Specifically, the working method of the vulcanization mold mainly consists of feeding work, compression molding work, high temperature and high pressure vulcanization work, residual heat vulcanization work, and rubber product removal work; the feeding work mainly realizes the installation operation of the pressure mold 7 and the base mold 1, and the corresponding rubber raw materials are placed at the same time; the compression molding work mainly pushes the rubber raw materials into the product cavity 52 of the mold core 5 through the power source, thereby realizing the effect of high pressure molding; the high temperature and high pressure vulcanization work mainly performs a vulcanization and cross-linking of the rubber raw materials under high pressure and high temperature of the heating ring 18, thereby achieving a preliminary improvement in the mechanical properties of the rubber product. The preheating and vulcanization work is mainly to preheat the mold core 5 by heating the heating ring 18 when the mold is not opened, and the elastic adjusting member is used to adjust the contraction so that a gap is generated between each partition 4 and the inner circumference of the secondary circular groove 37, and vulcanizing gas is introduced into each working groove 31 through the vent pipe 12, so that the vulcanizing gas is filled in the gap between the partition 4 and the inner circumference of the secondary circular groove 37, thereby realizing the function of secondary preliminary vulcanization; finally, the rubber product that has completed the primary vulcanization and the secondary vulcanization is taken out through the rubber product removal work. According to the above working method, the primary vulcanization and the secondary vulcanization are completed when the vulcanization mold is not opened, and the handling work of taking out the rubber product after the primary vulcanization is completed and then performing the secondary vulcanization through the relevant equipment is reduced, thereby achieving the beneficial effect of reducing the damage to the rubber product during transportation and improving the work efficiency.

[0057] During the residual heat vulcanization work, and after the secondary preliminary vulcanization is completed, the high-voltage current is stopped from being supplied to all the springs 46, and the springs 46 are reset to push the partition 4 until the end face of the partition 4 away from the working groove 31 is coplanar with the inner circumference of the secondary circular groove 37, and abuts against the rubber product in the product cavity 52 of the mold core 5; then, the drive motor 21 is started to rotate, and the transmission gear 23 and the transition mold 3 are driven to rotate under the transmission action of the drive gear 22, until the straight grooves 35 of four working grooves 31 are opposite to the four through grooves 11 of the base mold 1, and a high-voltage power supply is supplied to the springs 46 in the working grooves 31 opposite to the through grooves 11, and at the same time, the push cylinder 15 is started to push the push rod to move toward the guide rod 41, until the push rod 16 enters the straight groove 35 and its third inclined surface 17 abuts against the second inclined surface 42 of the guide rod 41, and the partition 4 of the guide rod 41 is in the mold core 5. Under the restraining effect of the rubber product in its product cavity 52 and the guiding of the contraction and pulling of the spring 46, the guide rod 41 moves along the inclination direction of the third inclined surface 17 toward the direction close to the push cylinder 15, and the partition plate 4 fits with the first inclined surface 32 and moves along the inclination direction of the first inclined surface 32 toward the working groove 31, so that there is a gap between the end face of the partition plate 4 away from the first inclined surface 32 and the inner wall of the working groove 31, and the gap between the partition plate 4 and the inner circumferential surface of the secondary circular groove 37 is increased, so that the gap is filled with more vulcanized gas, so that the rubber product facing the working groove 31 is fully vulcanized and cross-linked for the second time; according to this preheating and vulcanization work, the transition mold 3 is continued to be rotated forty-five degrees by the driving motor 21, so that the straight grooves 35 of the other four working grooves 31 are all facing the through groove 11, and the secondary full vulcanization and cross-linking are completed.

[0058] Specifically, with respect to the further method definition of the residual heat vulcanization work mentioned above, it can be understood that the further secondary vulcanization work mainly involves first performing secondary vulcanization on the rubber product of the mold core 5 and the positions of four working grooves 31 of the transition mold 3, and then performing secondary vulcanization on other positions. In the specific vulcanization operation, mainly through the pushing action of the push cylinder 15, the third inclined surface 17 of the push rod 16 and the second inclined surface 42 of the guide rod 41 are used for limiting and guiding, so as to realize forced guidance to drive the partition 4 to move toward the working groove 31, thereby increasing the gap between the partition 4 and the inner circumference of the secondary circular groove 37, and the operation efficiency is better and faster, thereby achieving the effect of improving the effectiveness of secondary vulcanization and further secondary vulcanization to further enhance the mechanical and physical properties of the rubber product.

[0059] The implementation methods of the present invention are not limited to this. According to the above content of the present invention, using common technical knowledge and customary means in the field, without departing from the above basic technical ideas of the present invention, the present invention can also make other various forms of modification, replacement or combination, all of which fall within the scope of protection of the present invention.

Claims

1. A vulcanization mold for a rubber vibration isolator, comprising a base mold and a pressure mold, wherein a mold core is embedded in the mold opening surface of the base mold, a feed mold is arranged on the end surface of the mold core away from the base mold, a feed groove is arranged on the end surface of the feed mold away from the mold core, the feed groove is connected to the product cavity of the mold core through a glue inlet, the pressure mold is provided with a pressure cylinder, the pressure cylinder is plugged and adapted with the feed groove, and a heating ring is arranged on the outer peripheral surface of the base mold, characterized in that: The open mold surface of the base mold is provided with a main circular groove, the main circular groove is plugged with a transition mold, the end surface of the transition mold away from the main circular groove is provided with a secondary circular groove for inserting the mold core, the inner circumference of the secondary circular groove is provided with a plurality of working grooves, the product cavity of the mold core is directly opposite to the working groove, a telescopic adjustment member is provided in the working groove, and a partition is provided at one end of the telescopic adjustment member away from the working groove, and when the telescopic adjustment member is reset, the surface of the partition is coplanar with the inner circumference of the secondary circular groove; The base mold is provided with a vent pipe connected to the working groove, and when the telescopic adjustment member adjusts the partition to move toward the working groove, a gap exists between the end surface of the partition away from the working groove and the inner circumferential surface of the secondary circular groove, and the gap is connected to the working groove; The telescopic adjustment member includes a fixed tube with one end fixedly connected to the end surface of the partition facing the working groove, the other end of the fixed tube is plugged with a connecting rod, the end of the connecting rod away from the fixed tube is fixedly connected to a connecting plate, the connecting plate is connected to the inner wall of the working groove, the fixed tube and the connecting rod are plugged with the same spring, the two ends of the spring are respectively connected to the positive and negative ends of the power supply, and the two ends of the spring are respectively connected to the partition and the connecting plate; The inner wall of the working groove near its groove opening is provided with a first inclined surface, and the first inclined surface is inclined in a direction away from the working groove near the side of the working groove, and the end surface of the partition facing the first inclined surface is coplanar with the first inclined surface and fits with each other.

2. The vulcanization mold of a rubber vibration isolator according to claim 1, characterized in that: A rotating member is provided on the inner bottom surface of the main circular groove, and the rotating end of the rotating member rotates coaxially with the transition mold, the mold core is connected to the transition mold, a guide rod is fixedly connected to the side surface of the partition facing the working groove, and a second inclined surface is provided on the end surface of the guide rod away from the partition, the second inclined surface is parallel to the first inclined surface, and the second inclined surface and the first inclined surface have the same inclination direction, a straight groove for the guide rod to be inserted is passed through the inner bottom surface of the working groove, the guide rod does not protrude from the outer peripheral surface of the transition mold through the straight groove, and there is a gap between the guide rod and the inner wall of the second inclined surface of the straight groove away from the guide rod; A through groove is penetrated by the inner circumference of the base mold, and the through groove and the straight groove are on the same horizontal plane. A pushing cylinder is arranged on the outer circumference of the base mold, and a guide rod is connected to the protruding end of the pushing cylinder. A third inclined surface is arranged on the end surface of the guide rod away from the pushing cylinder, and the third inclined surface is parallel to the second inclined surface, and the inclination directions of the third inclined surface and the second inclined surface are arranged opposite to each other; when the straight groove is rotated by the rotating part to face the through groove, the pushing cylinder pushes the guide rod to move toward the guide rod until the third inclined surface of the push rod abuts against the second inclined surface of the guide rod, and under the restriction of the mold core and the product in its product cavity, the partition of the guide rod moves along the inclination direction of the third inclined surface toward the direction close to the pushing cylinder.

3. The vulcanization mold of a rubber vibration isolator according to claim 1, characterized in that: A fourth inclined surface is provided on the inner bottom surface of the working groove at a position corresponding to the telescopic adjustment member. The fourth inclined surface is inclined on a side close to the secondary circular groove in a direction close to the notch of the working groove. The fourth inclined surface is integrally connected with a slide rail. The slide rail extends along the inclination direction of the fourth inclined surface and toward the notch of the secondary circular groove. The end face of the connecting plate away from the connecting rod is slidably connected to the slide rail.

4. The vulcanization mold of a rubber vibration isolator according to claim 1, characterized in that: The outer circumference of the transition mold is fitted with the inner circumference of the base mold, an air inlet hole is penetrated through the inner bottom surface of the working groove, an air vent is penetrated through the inner circumference of the main circular groove, a ventilation ring groove is opened on the inner circumference of the main circular groove, the ventilation ring groove is connected with the air vent and the air inlet, the ventilation pipe is outside the base mold and connected with the ventilation hole; an air outlet hole is opened on the side of the outer circumference of the base mold away from the ventilation pipe, and the air outlet hole is connected with the ventilation ring groove.

5. The vulcanization mold of the rubber vibration isolator according to claim 1, characterized in that: The mold core and the transition mold are coplanarly arranged on the top surface facing the secondary circular groove notch, and the top surface of the mold core is provided with a cover plate, which covers the top surface of the transition mold, and the cover plate is locked and connected to the top surface of the transition mold by bolts.

6. The vulcanization mold of a rubber vibration isolator according to claim 2, characterized in that: The inner circumferential surface of the main circular groove close to its inner bottom surface is integrally connected with an annular table, the transition mold is supported on the annular table, the rotating member includes a driving gear and a transmission gear both rotatably connected to the inner bottom surface of the annular table, the transmission gear and the driving gear are meshed, a driving motor is arranged on the side of the base mold away from the feeding mold, the driving shaft of the driving motor passes through the bottom surface of the base mold away from the feeding mold and rotates coaxially with the rotating shaft of the driving gear, the rotating shaft of the transmission gear rotates coaxially with a limiting block, and the limiting block is plugged into the bottom surface of the transition mold.

7. A method for operating a vulcanization mold for a rubber vibration isolator according to any one of claims 1 to 6, characterized in that: The following steps are involved: Loading work: put the mold core into the secondary circular groove, the feed mold is bolted through the cover plate and then locked and installed with the base mold, the base mold is installed on the base bracket, the heating ring is started by the circuit to the corresponding temperature to preheat the mold core and the transition mold, and the power mold is installed at the driving end of the power source, and then the rubber raw material is put into the feed groove of the feed mold; Pressing die working: Start the power source to drive the pressure die toward the feed die, the pressure cylinder is plugged into the feed trough, and at the same time, the rubber raw material in the feed trough is squeezed into the product cavity of the mold core through the rubber inlet, until the product cavity of the mold core is filled with rubber raw materials; High temperature and high pressure vulcanization work: adjust the die pressure of the power source and the temperature of the heating ring at the same time, so that the rubber raw materials in the product cavity of the mold core are vulcanized and cross-linked, until the rubber raw materials in the product cavity of the mold core are stably molded; Residual heat vulcanization work: After the high-temperature and high-pressure vulcanization work is completed, the heating of the heating ring is stopped, and a high-voltage DC power supply is passed to both ends of the spring. The spring contracts under the action of power on, pulling the partition to move toward the direction close to the working groove, so that there is a gap between the partition and the inner circumference of the secondary circular groove. The gap is directly opposite to the product cavity of the mold core. At the same time, there is a gap between the end face of the partition facing the first inclined surface and the first inclined surface. The gap between the partition and the inner circumference of the secondary circular groove is connected to the working groove through the gap between the partition and the first inclined surface; then, vulcanizing gas is introduced into the vent hole, and the vulcanizing gas enters the working groove through the vent hole, the vent ring groove and the air inlet hole, and then enters the gap between the partition and the product cavity of the mold core, and the rubber product formed in the product cavity of the mold core is subjected to secondary preliminary vulcanization by using the vulcanizing gas; Rubber product removal work: turn off the power source to restore the pressure mold to its initial position. After the entire mold returns to room temperature, remove the bolts between the feed mold, cover plate and base mold, then remove the mold core, and remove the corresponding screws on the mold core as needed to remove the rubber product.

8. A method for operating a vulcanization mold for a rubber vibration isolator as claimed in claim 7, characterized in that: During the residual heat vulcanization work, and after the secondary preliminary vulcanization is completed, stop supplying high-voltage current to all springs, and the spring reset pushes the partition until the end face of the partition away from the working groove is coplanar with the inner circumference of the secondary circular groove, and abuts against the rubber product in the product cavity of the mold core; then, start the drive motor to rotate, and drive the transmission gear and the transition mold to rotate under the transmission action of the drive gear, until the straight groove of the working groove is directly opposite to the through groove of the base mold, and supply high-voltage power to the spring in the working groove directly opposite to the through groove, and at the same time start the push cylinder to push the push rod to move toward the guide rod, until the push rod enters the straight groove and its third inclined surface abuts against the second inclined surface of the guide rod, and the partition of the guide rod is in the mold core and its product cavity. Under the restraint of the rubber product and the guidance of the spring's contraction and pulling, the guide rod moves along the inclination direction of the third inclined surface toward the direction close to the push cylinder, and the partition is fitted with the first inclined surface and moves along the inclination direction of the first inclined surface toward the working groove, so that there is a gap between the end face of the partition away from the first inclined surface and the inner wall of the working groove, and the gap between the partition and the inner circumference of the secondary circular groove is increased, so that the gap is filled with more vulcanized gas, so that the rubber product facing the working groove can be fully vulcanized and cross-linked for the second time; according to this preheating and vulcanization work, the transition mold is continuously rotated by the driving motor so that the straight groove of each working groove is facing the through groove, and the secondary full vulcanization and cross-linking are completed.

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