A rubber injection molding equipment for tire production with cooling device

Abstract

The invention relates to the technical field of injection molding machines, and discloses a rubber injection molding equipment for tire production with a cooling device, comprising a No. 1 mold and an outer shell mold, wherein a No. 2 mold is slidably connected in the outer shell mold, an inner tube mold is arranged in the No. 1 mold and the No. 2 mold, one side of the inner tube mold is fixedly connected with a hollow rod, the hollow rod penetrates the outer shell mold and the No. 2 mold, one side of the inner tube mold is arranged with a demolding assembly, the demolding assembly comprises a placement groove and a cross groove which are arranged on one side of the inner tube mold close to the No. 2 mold, a lifting block is slidably connected in the placement groove, a cross rod is slidably connected in the cross groove, and the top of the cross rod is fixedly connected to the bottom of the lifting block. This scheme has the beneficial effect of lifting and removing the rubber tire from the mold by driving the demolding assembly and the ductility of the rubber material while separating the two molds, thereby solving the problem that the tire after injection molding is stuck on the mold and needs to be manually disassembled, which affects the production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machines, in particular to rubber injection molding equipment for tire production with a cooling device. Background Art

[0002] Tires are generally made of rubber. In the tire production process, rubber injection molding equipment is needed. Rubber injection molding equipment mainly consists of rubber injection molding machines and injection molds. The rubber injection molding machine melts the raw materials into a molten state and transports them to the injection cavity of the mold. The mold shapes and cools the hot-melt rubber. The above operations can complete the injection molding of the tire.

[0003] Due to the special shape of the tire, the molded tire will be stuck inside the mold. When removing it from the mold, it is necessary to manually remove the molded tire from the mold. However, this removal method is inefficient and affects production efficiency. Therefore, it does not meet the existing needs. In this regard, we propose a rubber injection molding equipment for tire production with a cooling device. Summary of the invention

[0004] The present invention provides a rubber injection molding device for tire production with a cooling device, which has the beneficial effect of lifting and removing the rubber tire from the mold while separating two molds through the drive of the mold removal component and the ductility of the rubber material, thereby solving the problem mentioned in the above background technology that the injection-molded tire will be stuck on the mold and needs to be manually removed, affecting production efficiency.

[0005] The present invention provides the following technical solution: a rubber injection molding equipment for tire production with a cooling device, comprising an injection molding machine body, wherein the injection molding machine body melts the raw material and conveys it to a mold assembly, wherein the mold assembly comprises a No. 1 mold and an outer shell mold, wherein a No. 2 mold is slidably connected to the outer shell mold, an inner tube mold is arranged in the No. 1 mold and the No. 2 mold, one side of the inner tube mold is fixedly connected to a hollow rod, wherein the hollow rod passes through the outer shell mold and the No. 2 mold, one side of the inner tube mold is provided with a demolding assembly, and the inner tube mold is in the shape of a round cake.

[0006] The demolding assembly includes a placement groove and a cross groove opened on one side of the inner tube mold close to the No. 2 mold, a tilting block is slidably connected in the placement groove, a cross rod is slidably connected in the cross groove, the top of the cross rod is fixedly connected to the bottom of the tilting block, one side of the tilting block is in the shape of a raised arc, and the arc surface of the tilting block is flush with the inner tube mold.

[0007] As an optional solution of the rubber injection molding equipment for tire production with a cooling device described in the present invention, the mold assembly includes a base, one side of the base is fixedly connected to an electric push rod No. 1 and a supporting telescopic rod, the output ends of the supporting telescopic rod and the electric push rod No. 1 are fixedly connected to the mold No. 1, the side of the mold No. 1 away from the supporting telescopic rod is provided with the outer shell mold, and the side of the outer shell mold away from the mold No. 1 is fixedly connected to a fixing rod.

[0008] As an optional solution of the rubber injection molding equipment for tire production with a cooling device described in the present invention, wherein: a disc is fixedly connected to the bottom of the hollow rod, one side of the disc is fixedly connected to the output end of the inner tube electric push rod, the inner tube electric push rod is installed on one side of the outer shell mold, a No. 2 electric push rod is installed in the outer shell mold, the output end of the No. 2 electric push rod is fixedly connected to the No. 2 mold, and an injection channel is provided in the No. 1 mold.

[0009] As an optional solution of the rubber injection molding equipment for tire production with a cooling device described in the present invention, wherein: a demolding drive assembly for driving the cross rod to slide is arranged in the inner tube mold, and the demolding drive assembly includes a sliding groove and a demolding groove provided in the inner tube mold, and the demolding groove is connected with the cross groove through the sliding groove, and a U-shaped mounting block is slidably connected in the sliding groove, and the U-shaped mounting block is fixedly connected to the side wall of the cross rod, and a rotating connecting rod is rotatably connected in the U-shaped mounting block, and the other end of the rotating connecting rod is rotatably connected to the side wall of the sliding disk, and the sliding disk is arranged in the demolding groove.

[0010] As an optional solution of the rubber injection molding equipment for tire production with a cooling device described in the present invention, wherein: the side of the sliding disk close to the demolding groove is fixedly connected with a sliding inner rod, the sliding inner rod is slidably connected in the hollow rod, the end of the sliding inner rod away from the sliding disk is fixedly connected with a No. 3 electric push rod, the No. 3 electric push rod is installed in the hollow rod, and the sliding disk is located on one side of the sliding inner rod and is fixedly connected with a return spring.

[0011] As an optional solution of the rubber injection molding equipment for tire production with a cooling device described in the present invention, wherein: an ejector assembly is arranged in the No. 2 mold, and the ejector assembly includes a No. 1 piston chamber and a circular groove opened in the No. 2 mold, a push rod is slidably connected in the circular groove, a No. 1 piston plate is slidably connected in the No. 1 piston chamber, a No. 1 piston rod is fixedly connected to one side of the No. 1 piston plate, and the other end of the No. 1 piston rod is rotatably connected to the bottom of the push rod, the push rod is a cylinder, and a side of the push rod close to the inner tube mold is a concave arc surface, the arc surface of the push rod is flush with the mold surface of the No. 2 mold, and the No. 1 piston rod is a cylinder.

[0012] As an optional solution of the rubber injection molding equipment for tire production with a cooling device described in the present invention, a track groove is opened in the No. 2 mold, the track groove is connected to the circular groove, a track slider is slidably connected in the track groove, the track slider is fixedly connected to the outer side wall of the push rod, the track groove consists of a curved groove and a straight groove, and the circumference of the curved groove is half of the circumference of the circular groove.

[0013] As an optional solution of the rubber injection molding equipment for tire production with a cooling device described in the present invention, the sliding of the No. 1 piston plate is driven by an ejection drive assembly, and the ejection drive assembly includes a No. 2 piston chamber opened in the No. 2 mold, and a No. 2 piston plate is slidably connected in the No. 2 piston chamber, a piston spring is fixedly connected to one side of the No. 2 piston plate, and the other end of the piston spring is fixedly connected to the No. 2 piston chamber, the No. 2 piston chamber is connected to the No. 1 piston chamber through a hydraulic channel, and the hydraulic channel is opened in the No. 2 mold, and a No. 2 piston rod is fixedly connected to the side of the No. 2 piston plate away from the piston spring.

[0014] As an optional solution of the rubber injection molding equipment for tire production with a cooling device described in the present invention, a buffer groove is provided in the No. 2 piston rod, a buffer spring is fixedly connected in the buffer groove, the other end of the buffer spring is fixedly connected to a buffer inner rod, the other end of the buffer inner rod is fixedly connected to a buffer drive rod, the other end of the buffer drive rod is fixedly connected to the outer wall of the sliding disk, a through groove is provided between the No. 2 mold and the inner tube mold, and the No. 2 piston rod is slidably connected in the through groove.

[0015] As an optional solution of the rubber injection molding equipment for tire production with a cooling device described in the present invention, wherein: a cooling assembly is arranged in the mold assembly, the cooling assembly includes a limit groove opened in the No. 1 mold, a limit plug-in block is inserted in the limit groove, the limit plug-in block is fixedly connected to one side of the No. 2 mold, a water supply channel and a drainage channel are fixedly connected in the outer shell mold, the water supply channel is connected to a water supply pipe, and a one-way water inlet channel and a one-way water outlet channel are opened in the limit plug-in block.

[0016] The present invention has the following beneficial effects:

[0017] 1. The rubber injection molding equipment for tire production with a cooling device, after cooling is completed, the No. 3 electric push rod drives the sliding plate to slide to the right in the sliding groove. Since the two ends of the rotating connecting rod are respectively connected to the sliding plate and the cross rod, the sliding plate will drive the cross rod to slide upward in the cross groove while sliding to the right, and then drive the tilting block to slide upward synchronously. Since the arc surface of the tilting block is flush with the arc surface of the inner tube mold, the rubber tire located on the arc surface of the inner tube mold slides upward synchronously through the sliding of the tilting block. Since the demolding components are arranged in a plurality of groups around the circumference of the inner tube mold, one side of the tire The tire will be lifted up, and at the same time, the sliding disk drives the No. 2 piston plate to slide in the No. 2 piston chamber, and the sliding of the No. 2 piston plate causes the hydraulic oil in the No. 2 piston chamber to enter the No. 1 piston chamber through the hydraulic channel, and drives the No. 1 piston plate in the No. 1 piston chamber to slide, and through the connection of the No. 1 piston rod, drives the push rod to slide to the left, and through the sliding of the push rod, the push rod makes the push rod contact the edge of the tire through the lifted tire, and then drives the tire out of the inner tube mold, and through the sliding of the inner tube mold, the tire can be effectively removed from the inner tube mold, which completely replaces manual disassembly and improves the production efficiency of the tire.

[0018] 2. The rubber injection molding equipment for tire production with a cooling device, through the design of the track groove and the track slider, allows the push rod to rotate while sliding when it slides to the left. Since the track groove is composed of a curved groove and a straight groove, and the circumference of the curved groove is half the circumference of the circular groove, the push rod will rotate 180° during the sliding process. Through this rotation, the arc surface of the push rod is rotated upward. Therefore, when the arc surface of the push rod hits the edge of the tire, the edge of the tire will not be separated from the two due to the downward arc edge. Through this design, the stability of the disassembly work is further improved, ensuring that the tire can be disassembled.

[0019] 3. The rubber injection molding equipment for tire production with a cooling device, after the injection molding is completed, the No. 2 mold first slides in the outer shell mold, at this time an intermediate cavity is formed between the outer shell mold and the limiting plug-in block, at this time the water supply pipe provides cooling water to the inside by connecting the water supply equipment, and injects cooling water into the injection molding cavity through the one-way water inlet channel on the limiting plug-in block, so as to quickly cool the tire and ensure the stability of the tire. After the injection molding cavity is filled with water, it is discharged to the intermediate cavity through the one-way water outlet channel. At this time, the No. 1 mold and the No. 2 mold are still in a closed space, and the entire space is filled with cooling water. After the inside is filled with water, it can be discharged through the drainage channel provided with a one-way valve. Through this design, it can be ensured that there is always flowing cooling water inside the mold, thereby ensuring the cooling effect on the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention.

[0021] Figure 2 The cross-sectional structure of the mold assembly of the present invention is shown in FIG. Figure 1 .

[0022] Figure 3 For the present invention Figure 2 Enlarged structural diagram at A in the middle.

[0023] Figure 4 It is a schematic diagram of the structure of the inner tube mold and demoulding assembly of the present invention.

[0024] Figure 5 For the present invention Figure 3 Enlarged structural diagram at B in the middle.

[0025] Figure 6 For the present invention Figure 3 Enlarged structural diagram at point C in the middle.

[0026] Figure 7 The cross-sectional structure of the mold assembly of the present invention is shown in FIG. Figure 2 .

[0027] Figure 8 For the present invention Figure 7 Enlarged structural diagram at D in the middle.

[0028] Fig. 9 It is a schematic diagram of the track groove structure of the present invention.

[0029] Fig.10 For the present invention Figure 8 Enlarged structural diagram at E in the middle.

[0030] Fig.11 This is a schematic diagram of the disassembled structure of mold No. 1, shell mold and mold No. 2 of the present invention.

[0031] Fig.12 It is a schematic diagram of the cross-sectional structure of the No. 1 mold, the shell mold and the No. 2 mold when being demolded.

[0032] Fig.13 It is a schematic diagram of the cooling assembly structure of the present invention.

[0033] Fig.14 It is a schematic diagram of the changing structure of the tire of the present invention when it is tilted by the tilting block.

[0034] In the figure: 1. Injection molding machine body; 2. Mold assembly; 21. Base; 22. No. 1 mold; 23. Shell mold; 24. No. 2 mold; 25. Inner tube mold; 26. Support telescopic rod; 27. No. 1 electric push rod; 28. Fixed rod; 29. ​​Hollow rod; 210. Disc; 211. Inner tube electric push rod; 212. Injection channel; 213. No. 2 electric push rod; 3. Demolding assembly; 31. Placement slot; 32. Cross slot; 33. Lifting block; 34. Cross rod; 4. Demolding drive assembly; 41. Sliding slot; 42. Demolding slot; 43. U-shaped mounting block; 44. Rotating connecting rod; 45. Sliding disc; 46. Sliding inner rod; 47. Reset spring; 4 8. Electric push rod No. 3; 5. Ejector assembly; 51. Piston chamber No. 1; 52. Round groove; 53. Ejector rod; 54. Piston plate No. 1; 55. Piston rod No. 1; 56. Track groove; 57. Track slider; 6. Ejector drive assembly; 61. Piston chamber No. 2; 62. Piston plate No. 2; 63. Piston spring; 64. Piston rod No. 2; 65. Buffer groove; 66. Buffer spring; 67. Buffer inner rod; 68. Buffer drive rod; 69. Through groove; 610. Hydraulic channel; 7. Cooling assembly; 71. Limit groove; 72. Limit plug-in block; 73. Water supply channel; 74. Water supply pipe; 75. One-way water inlet channel; 76. One-way water outlet channel; 77. Drainage channel. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1: This example is intended to help solve the problem that the tire after injection molding will get stuck on the mold and need to be manually removed, which affects production efficiency. Please refer to Figures 1 to 14 A rubber injection molding device for tire production with a cooling device includes an injection molding machine body 1. The injection molding machine body 1 melts the raw material and conveys it to a mold assembly 2. The mold assembly 2 includes a No. 1 mold 22 and an outer shell mold 23. A No. 2 mold 24 is slidably connected to the outer shell mold 23. An inner tube mold 25 is arranged in the No. 1 mold 22 and the No. 2 mold 24. A hollow rod 29 is fixedly connected to one side of the inner tube mold 25. The hollow rod 29 passes through the outer shell mold 23 and the No. 2 mold 24. A demolding assembly 3 is arranged on one side of the inner tube mold 25.

[0037] By combining the No. 1 mold 22, the No. 2 mold 24 and the inner tube mold 25, an injection cavity is formed inside. The molten raw material processed by the injection molding machine body 1 is injected into the injection cavity through the injection channel 212 to complete the injection molding of the tire. The cooling component 7 is then used to cool the tire with a high temperature and instability so that it gradually becomes stable. The telescopic design between the outer shell mold 23 and the No. 2 mold 24 ensures that there is still a closed annular injection cavity in the No. 1 mold 22 and the outer shell mold 23 when the molds are removed, so that the tire can be immersed in cooling water.

[0038] The demolding assembly 3 includes a placement groove 31 and a cross groove 32 which are opened on one side of the inner tube mold 25 close to the second mold 24. A lifting block 33 is slidably connected in the placement groove 31, and a cross rod 34 is slidably connected in the cross groove 32. The top of the cross rod 34 is fixedly connected to the bottom of the lifting block 33.

[0039] The demoulding assembly 3 is arranged on one side of the inner tube mold 25 and arranged in a circle. The tire cooled by the cooling assembly 7, due to its arc-shaped cross section, will be stuck on the side wall of the round inner tube mold 25. The cross rod 34 drives the lifting block 33 to slide upward, so that the lifting block 33 lifts the arc edge of the tire (such as Fig.14 With this design, the tire with one side lifted up can be easily ejected from the inner tube mold 25 by the ejection assembly 5, so that the injection molded and cooled tire can be removed while the mold is opened, thereby improving the production efficiency of the tire.

[0040] The mold assembly 2 includes a base 21, one side of the base 21 is fixedly connected to an electric push rod 27 and a supporting telescopic rod 26, the output ends of the supporting telescopic rod 26 and the electric push rod 27 are fixedly connected to a mold 22, a shell mold 23 is provided on the side of the mold 22 away from the supporting telescopic rod 26, and a fixing rod 28 is fixedly connected to the side of the shell mold 23 away from the mold 22.

[0041] The design of the base 21, the fixed rod 28 and the supporting telescopic rod 26 provides support for the sliding of each mold, ensuring the stability of mold opening and closing. The No. 1 electric push rod 27 is used to drive the No. 1 mold 22 to move. Through the movement of the No. 1 mold 22, the tire that has been injection molded, cooled and disassembled is separated from the mold to facilitate the injection molding of the next tire. The structure and working principle of the injection molding machine body 1 are existing technologies, so this solution will not be described in detail.

[0042] A disc 210 is fixedly connected to the bottom of the hollow rod 29, one side of the disc 210 is fixedly connected to the output end of the inner tube electric push rod 211, the inner tube electric push rod 211 is installed on one side of the outer shell mold 23, a No. 2 electric push rod 213 is installed in the outer shell mold 23, the output end of the No. 2 electric push rod 213 is fixedly connected to the No. 2 mold 24, and an injection channel 212 is provided in the No. 1 mold 22.

[0043] The hollow rod 29, the disc 210 and the inner tube electric push rod 211 are designed to drive the inner tube mold 25 to slide in the above-mentioned injection cavity. The No. 2 electric push rod 213 is used to drive the No. 2 mold 24 to slide in the outer shell mold 23. The injection channel 212 is connected to the above-mentioned injection cavity to provide a channel for raw materials for the injection work.

[0044] Through the design of several electric push rods, the sliding of several molds can be effectively controlled to drive the No. 1 mold 22, the shell mold 23 and the No. 2 mold 24 to close the mold. At this time, the molten raw material is injected into the injection cavity formed by the No. 1 mold 22 and the No. 2 mold 24 through the injection channel 212 to complete the injection molding process of the tire. After the injection molding is completed, the No. 2 electric push rod 213 is used to drive the No. 2 mold 24 to slide in the shell mold 23 to expand the injection cavity formed above, so as to provide activity space for the disassembly process, and then the inner tube mold is driven by the inner tube electric push rod 211 25 slides to the left, so that the inner tube mold 25 is only stabilized by the hollow rod 29, and the design of the cooling component 7 can quickly cool the tire that has just been formed, so that the tire will not be deformed during subsequent disassembly. After cooling, the demolding component 3 is driven by the demolding driving component 4 to lift one side of the tire, and the ejection component 5 is used to remove the tire from the inner tube mold 25. Finally, the No. 1 electric push rod 27 is driven to separate the No. 1 mold 22, the outer shell mold 23 and the No. 2 mold 24 from each other, so that the tire can be separated from the mold, so as to facilitate the next injection molding.

[0045] A demolding drive assembly 4 for driving the cross rod 34 to slide is provided in the inner tube mold 25. The demolding drive assembly 4 includes a sliding groove 41 and a demolding groove 42 which are opened in the inner tube mold 25. The demolding groove 42 is connected to the cross groove 32 through the sliding groove 41. A U-shaped mounting block 43 is slidingly connected in the sliding groove 41. The U-shaped mounting block 43 is fixedly connected to the side wall of the cross rod 34. A rotating connecting rod 44 is rotatably connected in the U-shaped mounting block 43. The other end of the rotating connecting rod 44 is rotatably connected to the side wall of the sliding disk 45. The sliding disk 45 is arranged in the demolding groove 42.

[0046] A sliding inner rod 46 is fixedly connected to one side of the sliding disk 45 close to the demolding groove 42. The sliding inner rod 46 is slidably connected in the hollow rod 29. A No. 3 electric push rod 48 is fixedly connected to the end of the sliding inner rod 46 away from the sliding disk 45. The No. 3 electric push rod 48 is installed in the hollow rod 29. The sliding disk 45 is located on one side of the sliding inner rod 46 and is fixedly connected to a return spring 4.

[0047] After the cooling is completed, the third electric push rod 48 drives the sliding plate 45 to slide rightward in the sliding groove 41. Since the two ends of the rotating connecting rod 44 are respectively connected to the sliding plate 45 and the cross rod 34, the sliding plate 45 will drive the cross rod 34 to slide upward in the cross groove 32 while sliding to the right, thereby driving the tilting block 33 to slide upward synchronously. Since the arc surface of the tilting block 33 is flush with the arc surface of the inner tube mold 25, the sliding of the tilting block 33 will cause the rubber tire located on the arc surface of the inner tube mold 25 to slide upward synchronously. Since the demolding assembly 3 is arranged in a plurality of groups around the circumference of the inner tube mold 25, one side of the tire will be tilted (such as Fig.14 as shown).

[0048] The cross groove 32 and the cross rod 34 adopt a cross design, which can effectively ensure the sliding stability of the cross rod 34. The arc surface design of the tilting block 33 effectively ensures the integrity of the inner wall of the tire during the injection molding process, and will not inject tires that do not meet the requirements.

[0049] An ejection assembly 5 is provided in the No. 2 mold 24, and the ejection assembly 5 includes a No. 1 piston chamber 51 and a circular groove 52 opened in the No. 2 mold 24, a push rod 53 is slidably connected in the circular groove 52, a No. 1 piston plate 54 is slidably connected in the No. 1 piston chamber 51, a No. 1 piston rod 55 is fixedly connected to one side of the No. 1 piston plate 54, and the other end of the No. 1 piston rod 55 is rotatably connected to the bottom of the push rod 53.

[0050] The sliding of the No. 1 piston plate 54 is driven by the ejection drive assembly 6, which includes a No. 2 piston chamber 61 opened in the No. 2 mold 24, a No. 2 piston plate 62 is slidably connected in the No. 2 piston chamber 61, a piston spring 63 is fixedly connected to one side of the No. 2 piston plate 62, and the other end of the piston spring 63 is fixedly connected to the No. 2 piston chamber 61, the No. 2 piston chamber 61 is connected to the No. 1 piston chamber 51 through a hydraulic channel 610, the hydraulic channel 610 is opened in the No. 2 mold 24, and a No. 2 piston rod 64 is fixedly connected to the side of the No. 2 piston plate 62 away from the piston spring 63.

[0051] A buffer groove 65 is provided in the No. 2 piston rod 64, a buffer spring 66 is fixedly connected in the buffer groove 65, the other end of the buffer spring 66 is fixedly connected to a buffer inner rod 67, the other end of the buffer inner rod 67 is fixedly connected to a buffer drive rod 68, the other end of the buffer drive rod 68 is fixedly connected to the outer wall of the sliding disk 45, a through groove 69 is provided between the No. 2 mold 24 and the inner tube mold 25, and the No. 2 piston rod 64 is slidably connected in the through groove 69.

[0052] When the sliding plate 45 slides to the right, the ejection drive assembly 6 drives the ejection assembly 5 to remove the lifted tire from the inner tube mold 25. When the sliding plate 45 slides to the right, the buffer drive rod 68 fixedly connected to the side wall of the sliding plate 45 drives the buffer inner rod 67 to slide synchronously. At this time, since a buffer spring 66 and a buffer groove 65 are designed between the buffer inner rod 67 and the second piston rod 64, the sliding of the second piston rod 64 in the second piston chamber 61 can only be carried out when the buffer spring 66 is compressed to the limit. This design allows a time difference between the sliding plate 45 driving the lifting block 33 to slide upward and the push rod 53 sliding to the left. This time difference ensures that the push rod 53 completes the process of removing the tire from the inner tube mold 25 after one side of the tire is lifted up. This design effectively ensures the linkage of the removal process to prevent the push rod 53 from sliding out of the outer surface of the tire when one side of the tire is not lifted up, causing the push rod 53 to be unable to contact the tire and remove the tire, thereby ensuring the orderly progress of the removal process.

[0053] After the buffer spring 66 is compressed to the limit, the No. 2 piston rod 64 drives the No. 2 piston plate 62 to slide in the No. 2 piston chamber 61. Through the sliding of the No. 2 piston plate 62, the hydraulic oil in the No. 2 piston chamber 61 enters the No. 1 piston chamber 51 through the hydraulic channel 610, and drives the No. 1 piston plate 54 in the No. 1 piston chamber 51 to slide, and through the connection of the No. 1 piston rod 55, the push rod 53 is driven to slide to the left. Through the sliding of the push rod 53, the push rod 53 is pressed against the edge of the tire through the lifted tire, and then the tire is driven to detach from the inner tube mold 25. Through the sliding of the inner tube mold 25, the tire can be effectively removed from the inner tube mold 25, which completely replaces manual disassembly and improves the production efficiency of the tire. The design of the piston spring 63 provides a power basis for the reset process of the ejection assembly 5 and the ejection drive assembly 6.

[0054] The ejection assemblies 5 are also arranged in a circle around the inner tube mold 25, and each group of ejection assemblies 5 is arranged in the middle of two groups of demolding assemblies 3. This design can prevent the ejector rod 53 from contacting the lifting block 33 when sliding, causing the ejector rod 53 to be unable to remove the tire.

[0055] Embodiment 2, this embodiment is intended to promote the solution of the problem that due to the special shape of the push rod 53, when the push rod 53 pushes out the tire with one side tilted up, the push rod 53 and the tire may slide relative to each other. This embodiment is an explanation based on the embodiment 1. For details, please refer to Figures 1 to 14 A track groove 56 is provided in the second mold 24 , and the track groove 56 is connected to the circular groove 52 . A track slider 57 is slidably connected in the track groove 56 , and the track slider 57 is fixedly connected to the outer wall of the ejector rod 53 .

[0056] In order to ensure that there is no change in shape during tire injection molding, the curved surface of the push rod 53 is flush with the recessed portion of the second mold 24. Therefore, when the push rod 53 slides and contacts the edge of the tire, since the curved surface of the push rod 53 is downward, relative sliding between the tire and the push rod 53 may occur, resulting in the push rod 53 being unable to exert sufficient resistance force on the surface of the tire, thereby making the tire unable to be removed.

[0057] Through the design of the track groove 56 and the track slider 57, when the push rod 53 slides to the left, the push rod 53 rotates while sliding. Since the track groove 56 is composed of a curved groove and a straight groove, and the circumference of the curved groove is half the circumference of the circular groove 52, the push rod 53 rotates 180° during the sliding process. Through this rotation, the arc surface of the push rod 53 rotates upward. Therefore, when the arc surface of the push rod 53 hits the edge of the tire, the edge of the tire will not be separated from the two due to the downward arc edge. Through this design, the stability of the disassembly work is further improved, ensuring that the tire can be disassembled.

[0058] Example 3: This example is intended to help solve the problem that a tire that has just been injection molded is unstable and needs to be cooled before it can be removed. This example is an explanation based on Example 2. For details, please refer to Figures 1 to 14 A cooling assembly 7 is provided in the mold assembly 2, and the cooling assembly 7 includes a limiting groove 71 opened in the No. 1 mold 22, a limiting plug-in block 72 is inserted in the limiting groove 71, and the limiting plug-in block 72 is fixedly connected to one side of the No. 2 mold 24. A water supply channel 73 and a drainage channel 77 are fixedly connected in the shell mold 23. The water supply channel 73 is connected to a water supply pipe 74, and a one-way water inlet channel 75 and a one-way water outlet channel 76 are opened in the limiting plug-in block 72.

[0059] The cooling assembly 7 is used to provide cooling water for cooling the tire. The tire needs to be cooled just after injection molding is completed to ensure the stability of the tire. The design of the limiting groove 71 and the limiting plug-in block 72 requires that the No. 2 mold 24 and the No. 1 mold 22 need to be plugged in a fixed direction to ensure mold closing. Through this design, the positioning function of the two molds is guaranteed to ensure the normal operation of tire injection molding. After the injection molding is completed, the No. 2 mold 24 first slides in the outer shell mold 23. At this time, an intermediate cavity is formed between the outer shell mold 23 and the limiting plug-in block 72. At this time, the water supply pipe 74 provides cooling water to the inside by connecting the water supply equipment, and injects cooling water into the injection cavity through the one-way water inlet channel 75 on the limiting plug-in block 72, so as to quickly cool the tire and ensure the stability of the tire. After the injection molding cavity is filled with water, it is discharged to the middle cavity through the one-way water outlet channel 76. At this time, the No. 1 mold 22 and the No. 2 mold 24 are still in a closed space, and the entire space is filled with cooling water. After the inside is filled with water, it can be discharged through the drainage channel 77 provided with a one-way valve, and by designing the drainage rate of the drainage channel 77 to be less than the water inlet rate of the water supply pipe 74, it can be further ensured that the mold is filled with cooling water. By completely immersing the tire in cooling water, compared with common air cooling and spray cooling, the temperature of the tire can be quickly reduced, thereby speeding up the entire tire production rate. Through this design, it can be ensured that there is always flowing cooling water inside the mold, thereby ensuring the cooling effect on the tire. The cooling water will be completely discharged when the mold is opened.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A rubber injection molding device for tire production with a cooling device, comprising an injection molding machine body (1), characterized in that: The injection molding machine body (1) melts the raw material and conveys it into a mold assembly (2); the mold assembly (2) comprises a first mold (22) and an outer shell mold (23); a second mold (24) is slidably connected to the outer shell mold (23); an inner tube mold (25) is arranged in the first mold (22) and the second mold (24); a hollow rod (29) is fixedly connected to one side of the inner tube mold (25); the hollow rod (29) passes through the outer shell mold (23) and the second mold (24); and a demolding assembly (3) is arranged on one side of the inner tube mold (25); The demoulding assembly (3) comprises a placement groove (31) and a cross groove (32) provided on a side of the inner tube mold (25) close to the second mold (24); a tilting block (33) is slidably connected in the placement groove (31); a cross rod (34) is slidably connected in the cross groove (32); and the top end of the cross rod (34) is fixedly connected to the bottom end of the tilting block (33); A demoulding drive assembly (4) for driving the cross rod (34) to slide is arranged in the inner tube mold (25), and the demoulding drive assembly (4) comprises a sliding groove (41) and a demoulding groove (42) provided in the inner tube mold (25), the demoulding groove (42) being connected to the cross groove (32) via the sliding groove (41), a U-shaped mounting block (43) being slidably connected in the sliding groove (41), the U-shaped mounting block (43) being fixedly connected to the side wall of the cross rod (34), a rotating connecting rod (44) being rotatably connected in the U-shaped mounting block (43), the other end of the rotating connecting rod (44) being rotatably connected to the side wall of a sliding plate (45), and the sliding plate (45) being arranged in the demoulding groove (42); A sliding inner rod (46) is fixedly connected to one side of the sliding plate (45) close to the demoulding groove (42), and the sliding inner rod (46) is slidably connected in the hollow rod (29). A No. 3 electric push rod (48) is fixedly connected to one end of the sliding inner rod (46) away from the sliding plate (45), and the No. 3 electric push rod (48) is installed in the hollow rod (29). A return spring (47) is fixedly connected to one side of the sliding plate (45) located on the sliding inner rod (46); An ejection assembly (5) is arranged in the No. 2 mold (24), and the ejection assembly (5) comprises a No. 1 piston chamber (51) and a circular groove (52) provided in the No. 2 mold (24), a push rod (53) being slidably connected in the circular groove (52), a No. 1 piston plate (54) being slidably connected in the No. 1 piston chamber (51), a No. 1 piston rod (55) being fixedly connected to one side of the No. 1 piston plate (54), and the other end of the No. 1 piston rod (55) being rotatably connected to the bottom of the push rod (53).

2. The rubber injection molding equipment for tire production with a cooling device according to claim 1, characterized in that: The mold assembly (2) comprises a base (21), one side of the base (21) being fixedly connected to a No. 1 electric push rod (27) and a supporting telescopic rod (26), the output ends of the supporting telescopic rod (26) and the No. 1 electric push rod (27) being fixedly connected to the No. 1 mold (22), the outer shell mold (23) being provided on a side of the No. 1 mold (22) away from the supporting telescopic rod (26), and the outer shell mold (23) being fixedly connected to a fixing rod (28) on a side of the No. 1 mold (22) away from the No. 1 mold (22).

3. The rubber injection molding equipment for tire production with a cooling device according to claim 2, characterized in that: A disc (210) is fixedly connected to the bottom of the hollow rod (29); one side of the disc (210) is fixedly connected to the output end of an inner tube electric push rod (211); the inner tube electric push rod (211) is mounted on one side of the outer shell mold (23); a second electric push rod (213) is mounted in the outer shell mold (23); the output end of the second electric push rod (213) is fixedly connected to the second mold (24); and an injection channel (212) is provided in the first mold (22).

4. The rubber injection molding equipment for tire production with a cooling device according to claim 1, characterized in that: The second mold (24) is provided with a track groove (56), the track groove (56) being in communication with the circular groove (52), a track slider (57) being slidably connected in the track groove (56), and the track slider (57) being fixedly connected to the outer side wall of the ejector rod (53).

5. The rubber injection molding equipment for tire production with a cooling device according to claim 4, characterized in that: The sliding movement of the No. 1 piston plate (54) is driven by an ejection drive assembly (6), and the ejection drive assembly (6) comprises a No. 2 piston chamber (61) provided in the No. 2 mold (24), a No. 2 piston plate (62) being slidably connected in the No. 2 piston chamber (61), a piston spring (63) being fixedly connected to one side of the No. 2 piston plate (62), and the other end of the piston spring (63) being fixedly connected to the No. 2 piston chamber (61), the No. 2 piston chamber (61) being connected to the No. 1 piston chamber (51) via a hydraulic channel (610), the hydraulic channel (610) being provided in the No. 2 mold (24), and a No. 2 piston rod (64) being fixedly connected to the side of the No. 2 piston plate (62) away from the piston spring (63).

6. The rubber injection molding equipment for tire production with a cooling device according to claim 5, characterized in that: A buffer groove (65) is provided in the No. 2 piston rod (64), a buffer spring (66) is fixedly connected in the buffer groove (65), the other end of the buffer spring (66) is fixedly connected to a buffer inner rod (67), the other end of the buffer inner rod (67) is fixedly connected to a buffer drive rod (68), the other end of the buffer drive rod (68) is fixedly connected to the outer wall of the sliding plate (45), a through groove (69) is provided between the No. 2 mold (24) and the inner tube mold (25), and the No. 2 piston rod (64) is slidably connected in the through groove (69).

7. The rubber injection molding equipment for tire production with a cooling device according to claim 1, characterized in that: A cooling assembly (7) is provided in the mold assembly (2), the cooling assembly (7) comprising a limiting groove (71) opened in the first mold (22), a limiting plug-in block (72) inserted in the limiting groove (71), the limiting plug-in block (72) fixedly connected to one side of the second mold (24), a water supply channel (73) and a drainage channel (77) fixedly connected in the shell mold (23), the water supply channel (73) being connected to a water supply pipe (74), and a one-way water inlet channel (75) and a one-way water outlet channel (76) opened in the limiting plug-in block (72).

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