Quick-change tire mold and quick-change platform

Abstract

The application discloses a quick-change tire mold and a quick-change platform, and relates to the field of tire mold design, and can improve the efficiency of tire mold disassembly and assembly. The quick-change tire mold comprises a mold shell assembly, a cavity assembly, a mold shell quick-change assembly and a cavity quick-change assembly. The mold shell assembly comprises a base, a sliding block and a mounting ring. The cavity assembly comprises a pattern block, an upper side plate and a lower side plate. The mold shell quick-change assembly comprises a locking sleeve, a locking shaft arranged in the locking sleeve and a center pin arranged in the locking shaft. A locking step is arranged on the inner wall of the locking sleeve. A plurality of through holes are arranged in the lower part of the locking shaft in a circumferential uniform distribution manner. Steel balls are arranged in the through holes in a clearance manner. The cavity quick-change assembly comprises a guide block. A locking rod is slidably connected in the guide block. A lock catch is arranged on one side of the locking rod. A lock groove is arranged in the lower part of the lock catch. A locking pin is arranged on one side of the pattern block. The mold shell quick-change assembly is used for locking and unlocking the upper side plate and the upper cover and the lower side plate and the base. The cavity quick-change assembly is used for locking and unlocking the pattern block and the sliding block. The operation is simple, and the efficiency of tire mold disassembly and assembly is improved.

Description

Technical Field

[0001] This invention belongs to the field of tire mold technology, and specifically relates to a quick-change tire mold and quick-change platform. Background Technology

[0002] In the tire manufacturing industry, tire molds are the core equipment for forming tire tread patterns and ensuring tire appearance and performance. Since tires of different specifications and tread patterns need to be matched with corresponding mold cavities, the assembly and disassembly operations between the mold cavity and the mold shell are performed frequently. Their convenience, efficiency and safety directly affect the tire production rhythm and workshop operation safety.

[0003] The connection structure and disassembly / reassembly methods of the key components of existing quick-change tire molds have significant limitations, as detailed below:

[0004] In existing tire molds, in order to fix the tread block and the slider, two sets of countersunk holes need to be machined on the slider, and two sets of threaded holes need to be machined at the corresponding positions on the tread block. During assembly, bolts are used to pass through the countersunk holes from the back of the slider and engage with the threaded holes of the tread block to fasten the two together.

[0005] The connection between the upper side plate and the upper cover requires pre-machining four or six sets of countersunk holes on the upper cover (the specific number depends on the mold specifications), and machining the same number of threaded holes at the corresponding positions on the upper side plate. During assembly, bolts are inserted from the back of the upper cover into the countersunk holes and engaged with the threaded holes on the upper side plate to form a fixed connection between the two.

[0006] The lower side plate is connected to the base by machining four sets of countersunk holes on the lower side plate and machining four sets of threaded holes on the corresponding positions on the base, and then using bolts to connect the lower side plate to the base from one side, or by machining four sets of semi-circular grooves on the lower side plate and machining four sets of threaded holes on the corresponding positions on the base, and then using pressure blocks to press the lower side plate onto the base.

[0007] Based on the above connection structure, the assembly and disassembly process of the cavity and shell of the existing tire mold is cumbersome and inefficient. Specifically, the connection of each component relies on fasteners such as bolts or pressure blocks. During assembly and disassembly, multiple sets of bolts need to be loosened / tightened one by one. Moreover, the operating space of some bolts (such as the bolts on the back of the slider and the back of the top cover) is limited, which further prolongs the assembly and disassembly time and makes it difficult to meet the needs of rapid mold change in tire production. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a quick-change tire mold and quick-change platform to solve the problems of complex disassembly and assembly processes, inconvenient operation, long disassembly and assembly time, low efficiency, and difficulty in adapting to the needs of rapid mold change in tire production.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0010] According to one aspect of the present invention, a quick-change tire mold is provided, comprising:

[0011] A mold shell assembly, the mold shell assembly including a base, a plurality of sliders evenly distributed around the base, a top cover disposed on the upper end of the sliders, and a mounting ring covering the outside of the sliders;

[0012] A cavity assembly is disposed inside the mold shell assembly, including a patterned block disposed on one side of the slider, an upper side plate disposed on the upper part of the patterned block, and a lower side plate disposed on the lower part of the patterned block;

[0013] A quick-change mold housing assembly is used for locking and unlocking the upper side plate and the upper cover, and the lower side plate and the base. Multiple quick-change mold housing assemblies are evenly distributed around the circumference of the upper cover and the base, and the quick-change mold housing assemblies for the upper side plate and the upper cover correspond to the quick-change mold housing assemblies for the lower side plate and the base. It includes a hollow locking sleeve, a locking shaft disposed in the locking sleeve, and a center pin disposed in the locking shaft. The inner wall of the locking sleeve is provided with a locking step. The lower part of the locking shaft is provided with multiple through holes evenly distributed around the circumference of the locking shaft. Steel balls are intermittently disposed in the through holes, and the diameter of the steel balls is greater than the depth of the through holes. The center pin is provided with a neck, and the upper part of the center pin is connected to the mounting groove at the upper end of the locking shaft through a spring. For the quick-change mold housing assembly for the upper side plate and the upper cover, the locking sleeve is threaded to the upper side plate, and the locking shaft is installed in the lower part of the upper cover. For the quick-change mold housing assembly for the lower side plate and the base, the locking sleeve is threaded to the lower side plate, and the locking shaft is installed in the upper part of the base.

[0014] A quick-change assembly for locking and unlocking a patterned block and a slider includes a guide block fixedly mounted on the slider. A locking rod is slidably connected within the guide block. A locking buckle is provided on one side of the locking rod, and a locking groove is provided at the lower part of the locking buckle. A locking pin is provided on one side of the patterned block, and the locking pin is threaded or welded to the patterned block. The locking buckle and the locking pin are arranged perpendicularly. One end of the locking pin has a tapered structure, and the diameter of the large-diameter end of the locking pin is greater than the width of the locking groove. The thickness of the locking buckle is equal to the length of the locking pin rod extending out of the patterned block.

[0015] Furthermore, the end of the through hole near the locking sleeve is provided with a constricted portion, the diameter of which is smaller than the diameter of the steel ball.

[0016] Furthermore, the upper part of the cover is provided with an annular groove, and multiple quick-change mold shell components are evenly distributed in the annular groove. A disassembly disc is rotatably connected in the annular groove. The lower part of the disassembly disc is provided with several disassembly protrusions. The number of disassembly protrusions corresponds to the number of quick-change mold shell components. One side of the disassembly protrusion is vertically set, and the other side is an inclined surface. The vertical surface and the inclined surface are connected by a smooth surface.

[0017] Furthermore, the disassembly disc is provided with a rotating handle, and the upper cover is provided with two slots for accommodating the rotating handle. The two slots are a locking slot and an unlocking slot, respectively. The slot corresponding to the rotating handle when the disassembly protrusion squeezes the center pin is the unlocking slot, and the slot corresponding to the rotating handle when the disassembly protrusion separates from the center pin is the locking slot.

[0018] Furthermore, a tension spring is connected to one side of the locking rod, and the other end of the tension spring is connected to the slider.

[0019] Furthermore, a positioning boss is provided on one side of the upper side plate, and an upper side plate positioning groove matching the positioning boss is provided on the upper surface of the patterned block.

[0020] According to another aspect of the present invention, a quick-change platform for tire molds is provided for the disassembly and installation of the aforementioned quick-change tire molds, comprising:

[0021] The disassembly and assembly platform is used to place the quick-change tire mold. The lower part of the disassembly and assembly platform is fixedly connected to the first hydraulic cylinder. The piston rod end of the first hydraulic cylinder extends out of the disassembly and assembly platform and is connected to the support plate, which is used to support the upper side plate when the quick-change tire mold is disassembled and assembled.

[0022] A telescopic column, installed on the disassembly platform, is used by bolts, cylinders, hydraulic cylinders, or electric cylinders to disassemble the quick-change mold housing assembly between the lower side plate and the base. When disassembling the quick-change mold housing assembly between the lower side plate and the base, the telescopic column extends and presses the center pin of the quick-change mold housing assembly, causing the locking shaft to separate from the locking sleeve. When assembling the quick-change mold housing assembly between the lower side plate and the base, the telescopic column retracts and separates from the center pin of the quick-change mold housing assembly.

[0023] A cavity quick-change assembly disassembly mechanism is used to disassemble the cavity quick-change assembly. It includes multiple second hydraulic cylinders fixedly installed on the cross brace of the disassembly platform. The piston rod ends of the multiple second hydraulic cylinders are connected to a connecting plate. The connecting plate is provided with a number of push rods. The number of push rods corresponds to the cavity quick-change assembly. The push rods are located in the gap between the slider and the pattern block. The upper end of the push rod extends out of the disassembly platform and is connected to a push plate. The length of the push plate is greater than the length of the locking pin extending out of the pattern block.

[0024] Furthermore, the disassembly and assembly platform is provided with a positioning cone, and the lower part of the base is provided with a positioning cone groove corresponding to the positioning cone. The positioning cone and the positioning cone groove are used for the rapid positioning of the base on the disassembly and assembly platform.

[0025] Furthermore, the disassembly and assembly platform is provided with a number of positioning blocks, and the lower part of the base is provided with a number of base positioning grooves corresponding to the positioning blocks.

[0026] Furthermore, it also includes a hanger for the overall hoisting of the cavity assembly. The hanger includes a connecting plate with a lifting ring in the middle. The connecting plate has a plurality of tensioning screws evenly arranged around the lifting ring in its circumferential direction. The tensioning screws are rotatably connected to the connecting plate. The upper end of the tensioning screw is provided with a handwheel, and the lower end of the tensioning screw is provided with an external thread.

[0027] The beneficial effects of this invention are:

[0028] (1) The present invention utilizes the quick-change mold shell assembly to realize the locking and unlocking of the upper side plate and the upper cover, as well as the lower side plate and the base, and utilizes the quick-change cavity assembly to realize the locking and unlocking of the pattern block and the slider. The operation is simple and improves the efficiency of tire mold assembly and disassembly.

[0029] (2) By setting a closing part at one end of the through hole, the steel ball is prevented from falling from one side of the through hole when the quick-change assembly of the mold shell is unlocked.

[0030] (3) An annular groove is provided on the top cover, and a disassembly disc is provided in the annular groove. By using multiple disassembly protrusions at the bottom of the disassembly disc, the simultaneous locking and unlocking of multiple quick-change mold shell components of the upper side plate and the top cover is realized, which further improves the disassembly and assembly efficiency of the tire mold.

[0031] (4) The present invention also provides a tire mold quick-change platform, which realizes the quick assembly and disassembly of the above-mentioned quick-change tire mold by means of telescopic columns and cavity quick-change component disassembly mechanism.

[0032] (5) A positioning cone and a positioning block are set on the disassembly and assembly platform, and a positioning cone groove and a base positioning groove are set on the lower part of the base. This not only achieves the positioning accuracy of the base on the disassembly and assembly platform, but also ensures the stability of the base during the disassembly and assembly process.

[0033] (6) By setting up hangers, the overall hoisting of the cavity components was realized, which further improved the efficiency of tire mold assembly and disassembly. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of a quick-change tire mold structure according to the present invention.

[0035] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0036] Figure 3 This is a diagram showing the locking state of the quick-change mold housing assembly.

[0037] Figure 4 This is a diagram showing the unlocked status of the quick-change mold housing component.

[0038] Figure 5 This is a schematic diagram of the quick-change cavity assembly.

[0039] Figure 6 This is the main view of the locking bar.

[0040] Figure 7 This is a diagram showing the locking state of the quick-change cavity assembly.

[0041] Figure 8 This is a diagram showing the unlocked status of the cavity quick-change component.

[0042] Figure 9 This is an assembly diagram of the top cover, quick-change mold housing assembly, and disassembly plate.

[0043] Figure 10 This is a schematic diagram of the disassembly disc structure.

[0044] Figure 11 This is a schematic diagram of a tire mold quick-change platform structure according to the present invention.

[0045] Figure 12 This is a schematic diagram of the push rod structure.

[0046] Figure 13 This is a diagram showing the initial state of the quick-change tire mold after disassembly.

[0047] Figure 14 This is a diagram showing the disassembly of the mold shell assembly.

[0048] Figure 15 This is a diagram showing the disassembly of the cavity assembly.

[0049] Figure 16 This is a schematic diagram of the hanger structure.

[0050] In the picture:

[0051] 1. Mold shell assembly; 11. Base; 111. Base positioning groove; 112. Positioning cone groove; 12. Slider; 13. Mounting ring; 14. Top cover; 141. Slot;

[0052] 2. Cavity assembly; 21. Upper side plate; 211. Positioning boss; 22. Patterned block; 221. Upper side plate positioning groove; 23. Lower side plate;

[0053] 3. Quick-change mold housing assembly; 31. Locking sleeve; 311. Locking step; 32. Locking shaft; 321. Through hole; 33. Center pin; 331. Neck; 34. Spring; 35. Steel ball;

[0054] 4. Cavity quick-change assembly; 41. Guide block; 42. Locking rod; 421. Locking buckle; 422. Locking groove; 43. Locking pin; 44. Tension spring; 45. Removal disc; 451. Removal protrusion; 452. Rotating handle;

[0055] 5. Assembly / disassembly platform; 51. Cross brace; 52. Positioning block; 53. Telescopic column; 54. Positioning cone; 55. Support plate; 56. First hydraulic cylinder; 57. Second hydraulic cylinder; 58. Connecting plate; 59. Push rod; 591. Push plate;

[0056] 6. Hanger; 61. Connecting plate; 62. Lifting ring; 63. Tensioning screw; 64. Handwheel. Detailed Implementation

[0057] The following will be combined with the appendix Figures 1-16 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0058] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0059] like Figure 1 As shown, according to one aspect of the present invention, a quick-change tire mold is provided, including a mold shell assembly 1, a cavity assembly 2, a mold shell quick-change assembly 3 and a cavity quick-change assembly 4. The mold shell assembly 1 includes a base 11, a plurality of sliders 12 circumferentially distributed on the base 11, an upper cover 14 disposed on the upper end of the sliders 12, and a mounting ring 13 covering the outside of the sliders 12.

[0060] like Figure 1 As shown, the cavity assembly 2 is disposed inside the mold shell assembly 1, including a patterned block 22 disposed on one side of the slider 12, an upper side plate 21 disposed on the upper part of the patterned block 22, and a lower side plate 23 disposed on the lower part of the patterned block 22.

[0061] The quick-change mold housing assembly 3 is used for locking and unlocking the upper side plate 21 and the upper cover 14, and the lower side plate 23 and the base 11. Multiple quick-change mold housing assemblies 3 are evenly distributed circumferentially along the upper cover 14 and the base 11, and the quick-change mold housing assemblies 3 on the upper side plate 21 and the upper cover 14 correspond in position to those on the lower side plate 23 and the base 11. Figure 3 , Figure 4As shown, the quick-change mold housing assembly 3 includes a hollow locking sleeve 31, a locking shaft 32 disposed within the locking sleeve 31, and a center pin 33 disposed within the locking shaft 32. The inner wall of the locking sleeve 31 is provided with a locking step 311. The lower part of the locking shaft 32 is provided with multiple through holes 321 evenly distributed circumferentially along the locking shaft 32. Steel balls 35 are intermittently disposed within the through holes 321, and the diameter of the steel balls 35 is greater than the depth of the through holes 321. The center pin 33... A neck 331 is provided, and the upper part of the center pin 33 is connected to the mounting groove at the upper end of the locking shaft 32 via a spring 34; for the quick-change assembly 3 of the mold shell between the upper side plate 21 and the upper cover 14, the locking sleeve 31 is threadedly connected to the upper side plate 21, and the locking shaft 32 is installed at the lower part of the upper cover 14; for the quick-change assembly 3 of the mold shell between the lower side plate 23 and the base 11, the locking sleeve 31 is threadedly connected to the lower side plate 23, and the locking shaft 32 is installed at the upper part of the base 11.

[0062] The operating principle of the quick-change mold housing assembly 3: The locking shaft 32, steel ball 35, and center pin 33 are connected as a whole. During locking, the steel ball 35 is lifted by the spring 34, separating from the constricted neck 331 of the center pin 33 and being squeezed out of the through hole 321 of the locking shaft 32 by the center pin 33. This causes the steel ball 35 to press against the locking step 311 on the inner wall of the locking sleeve 31, thus locking the upper side plate 21 to the upper cover 14 and the lower side plate 23 to the base 11. During unlocking, the center pin 33 is pressed, and the center pin 33 moves axially along the locking shaft 32 to the position of the steel ball 35. Then, the locking shaft 32 and the center pin 33 are lifted as a whole, and the steel ball 35 is squeezed into the through hole 321 and the constricted neck 331 under the pressure of the locking step 311, thus unlocking the upper side plate 21 to the upper cover 14 and the lower side plate 23 to the base 11.

[0063] The cavity quick-change assembly 4 is used for locking and unlocking the pattern block 22 and the slider 12, such as... Figures 5-8 As shown, the quick-change cavity assembly 4 includes a guide block 41 fixedly mounted on the slider 12. A locking rod 42 is slidably connected inside the guide block 41. A locking buckle 421 is provided on one side of the locking rod 42, and a locking groove 422 is provided at the lower part of the locking buckle 421. A locking pin 43 is provided on one side of the patterned block 22. The locking pin 43 is threaded or welded to the patterned block 22. The locking buckle 421 and the locking pin 43 are arranged perpendicularly. One end of the locking pin 43 is a tapered structure, and the diameter of the large-diameter end of the locking pin 43 is greater than the width of the locking groove 422. The thickness of the locking buckle 421 is equal to the length of the pin of the locking pin 43 extending out of the patterned block 22.

[0064] Operating principle of quick-change cavity assembly 4: Locking rod 42 can move up and down within guide block 41. Moving up is the loose position, and moving down is the locked position. In the locked position, locking groove 422 is engaged with the pin between the large diameter end of locking pin 43 and patterned block 22, at which time patterned block 22 and slider 12 are locked. When unlocking, locking rod 42 moves upward until the bottom of latch 421 is higher than the large diameter end of locking pin 43, locking groove 422 of latch 421 disengages from locking pin 43, and slider 12 moves outward radially along base 11, thereby unlocking slider 12 from patterned block 22.

[0065] like Figure 3 , Figure 4 As shown, the end of the through hole 321 near the locking sleeve 31 is provided with a constriction portion. The diameter of the constriction portion is smaller than the diameter of the steel ball 35, which prevents the steel ball 35 from falling out of the through hole 321 when the quick-change mold housing assembly 3 is unlocked.

[0066] like Figure 9 As shown, the upper part of the cover 14 is provided with an annular groove, and multiple quick-change mold shell components 3 are evenly distributed in the annular groove. A disassembly disc 45 is rotatably connected in the annular groove. The lower part of the disassembly disc 45 is provided with a number of disassembly protrusions 451. The number of disassembly protrusions 451 corresponds to the number of quick-change mold shell components 3. One side of the disassembly protrusion 451 is vertically set, and the other side is inclined. The straight surface and the inclined surface are connected by a smooth surface.

[0067] When the upper side plate 21 and the upper cover 14's quick-change mold housing assembly 3 are unlocked, the disassembly disc 45 is rotated, and the inclined surface of the disassembly protrusion 451 gradually contacts the center pin 33 of the quick-change mold housing assembly 3, applying downward pressure to the center pin 33. The steel ball 35 enters the through hole 321 of the locking shaft 32, and multiple quick-change mold housing assemblies 3 of the upper side plate 21 and the upper cover 14 are unlocked simultaneously. The inclined surface provides a smooth force transmission path, allowing the center pin 33 to be pressed down slowly and steadily, avoiding sudden impact or jamming. This gradual pressurization ensures that the steel ball 35 retracts smoothly into the through hole 321 of the locking shaft 32, achieving smooth unlocking.

[0068] When the disassembly disc 45 rotates to the locking position, the disassembly protrusion 451 separates from the center pin 33. The center pin 33 automatically springs up under the action of the spring 34, squeezing out the steel ball 35. The steel ball 35 presses against the locking step 311 on the inner wall of the locking sleeve 31, realizing the simultaneous locking of multiple upper side plates 21 and multiple mold shell quick-change components 3 of the upper cover 14. The vertical surface avoids the disassembly protrusion 451 pressing against the center pin 33 in the locked state, causing the mold shell quick-change component 3 to be accidentally unlocked. Compared with operating each mold shell quick-change component 3 one by one, the disassembly disc 45 simplifies the operation process of locking and unlocking the mold shell quick-change component 3 of the upper side plate 21 and the upper cover 14, and improves the efficiency of disassembling and assembling the mold shell quick-change component 3.

[0069] like Figure 10As shown, the disassembly disc 45 is equipped with a rotating handle 452, such as... Figure 9 As shown, the upper cover 14 is provided with two slots 141 for accommodating the rotating handle 452. The two slots 141 are a locking slot and an unlocking slot, respectively. When the disassembly protrusion 451 presses against the center pin 33, the slot 141 corresponding to the rotating handle 452 is the unlocking slot. When the disassembly protrusion 451 separates from the center pin 33, the slot 141 corresponding to the rotating handle 452 is the locking slot. The setting of the locking slot and the unlocking slot prevents the disassembly disc 45 from rotating in the non-operational state, thus ensuring the stability of the mold shell quick-change assembly 3.

[0070] like Figure 7 , Figure 8 As shown, a tension spring 44 is connected to one side of the locking rod 42, and the other end of the tension spring 44 is connected to the slider 12. The tension spring 44 not only prevents the cavity quick-change assembly 4 from being unlocked in an accidental state, but also facilitates the automatic reset of the locking rod 42 after the cavity quick-change assembly 4 is unlocked.

[0071] like Figure 2 As shown, the upper side plate 21 is provided with a positioning boss 211 on one side, and the upper surface of the patterned block 22 is provided with an upper side plate positioning groove 221 that matches the positioning boss 211, so as to facilitate quick positioning when the upper side plate 21 is assembled with the slider 12.

[0072] According to another aspect of the present invention, a quick-change platform for tire molds is provided for the disassembly and installation of the aforementioned quick-change tire molds, such as... Figure 11 As shown, it includes: a disassembly and assembly platform 5, a telescopic column 53, and a cavity quick-change component disassembly mechanism. The disassembly and assembly platform 5 is used to place the quick-change tire mold. A first hydraulic cylinder 56 is fixedly connected to the lower part of the disassembly and assembly platform 5. The piston rod end of the first hydraulic cylinder 56 extends out of the disassembly and assembly platform 5 and is connected to a support plate 55, which is used to support the upper side plate 21 when the quick-change tire mold is disassembled and assembled.

[0073] like Figure 11 As shown, the telescopic column 53 is installed on the disassembly platform 5. The telescopic column 53 is made of bolts, cylinders, hydraulic cylinders or electric cylinders and is used to disassemble the mold shell quick-change assembly 3 of the lower side plate 23 and the base 11. When the lower side plate 23 and the mold shell quick-change assembly 3 of the base 11 are disassembled, the telescopic column 53 extends and squeezes the center pin 33 of the mold shell quick-change assembly 3, so that the locking shaft 32 separates from the locking sleeve 31. When the lower side plate 23 and the mold shell quick-change assembly 3 of the base 11 are assembled, the telescopic column 53 retracts and separates from the center pin 33 of the mold shell quick-change assembly 3.

[0074] like Figure 11As shown, the cavity quick-change assembly disassembly mechanism is used to disassemble the cavity quick-change assembly 4. It includes multiple second hydraulic cylinders 57 fixedly mounted on the cross brace 51 of the disassembly platform 5. The piston rod ends of the multiple second hydraulic cylinders 57 are connected to a connecting plate 58. The connecting plate 58 is provided with a plurality of push rods 59, the number of which corresponds to the cavity quick-change assembly 4. The push rods 59 are located within the gap between the slider 12 and the patterned block 22. Figure 12 As shown, the upper end of the push rod 59 extends out of the disassembly and assembly platform 5 and is connected to the push plate 591, and the length of the push plate 591 is greater than the length of the locking pin 43 extending out of the patterned block 22.

[0075] like Figures 13-15 As shown, when disassembling the quick-change tire mold, the quick-change tire mold is hoisted onto the disassembly and assembly platform 5. The piston rod of the first hydraulic cylinder 56 extends, driving the support plate 55 to rise and supporting the upper side plate 21. Then, the rotating handle 452 is folded from the locking groove and rotated to the unlocking groove. The disassembly protrusion 451 at the lower part of the disassembly plate 45 presses down the center pin 33, so that the locking shaft 32 and the locking sleeve 31 are unlocked, completing the unlocking of the upper side plate 21 and the upper cover 14. At this time, the mounting ring 13 and the upper cover 14 are removed.

[0076] The piston rod of the second hydraulic cylinder 57 extends, driving the push rod 59 to rise via the connecting plate 58. After the push plate 591 at the upper end of the push rod 59 contacts the locking rod 42, it pushes the locking rod 42 to move upward within the guide block 41. When the locking buckle 421 moves upward to the upper part of the large diameter end of the locking pin 43, the locking groove 422 separates from the locking pin 43. At this time, the control slider 12 moves radially outward along the base 11. Since the length of the push plate 591 is greater than the length of the locking pin 43 extending out of the patterned block 22, the slider 1... 2. In the initial stage of outward movement, the push plate 591 keeps pressing against the locking rod 42, that is, the cavity quick-change assembly 4 is always in the unlocked state. When the latch 421 moves to the outside of the locking pin 43, the push plate 591 separates from the locking rod 42. The locking rod 42 automatically resets under its own weight and the tension of the tension spring 44, completing the unlocking of the slider 12 and the patterned block 22. At this time, the slider 12 is removed. When the slider 12 is removed, the push rod 59 is located at the outer circle of the patterned block 22, and also has the function of preventing the patterned block 22 from tilting outward.

[0077] When the base 11 and the lower side plate 23 are disassembled, the telescopic column 53 extends and presses the center pin 33 in the quick-change mold shell assembly 3 of the lower side plate 23 and the base 11, so that the lower side plate 23 and the base 11 are unlocked, thereby removing the cavity assembly 2; thus completing the removal of the mold shell assembly 1 and the cavity assembly 2.

[0078] During the quick-change tire mold installation, the telescopic column 53 retracts, and then the base 11 is hoisted onto the disassembly platform 5. The cavity assembly 2 is then hoisted onto the base 11 as a whole. Next, the upper part of the mold shell assembly 1 (installation ring 13, upper cover 14, and slider 12) is hoisted onto the upper part of the cavity assembly 2. After the mold is closed, the tread block 22 and the slider 12 automatically lock together. The support plate 55 rises to support the upper side plate 21, and the disassembly plate 45 is rotated to the locking groove, locking the upper cover 14 and the upper side plate 21 together.

[0079] like Figure 11 As shown, the disassembly / assembly platform 5 is equipped with a positioning cone 54, such as... Figure 1 As shown, the lower part of the base 11 is provided with a positioning cone groove 112 corresponding to the positioning cone 54. The positioning cone 54 and the positioning cone groove 112 are used for quick positioning of the base 11 on the disassembly and assembly platform 5.

[0080] like Figure 11 As shown, the disassembly and assembly platform 5 is provided with several positioning blocks 52, such as... Figure 1 As shown, the lower part of the base 11 is provided with a plurality of base positioning grooves 111 corresponding to the positioning block 52. The positioning block 52 and the positioning cone 54 together position the base 11, which not only ensures the positioning accuracy of the base 11, but also improves the stability of the base 11 when placed on the disassembly and assembly platform 5.

[0081] like Figure 15 , Figure 16 As shown, it also includes a hanger 6 for overall hoisting of the cavity assembly 2. The hanger 6 includes a connecting plate 61, a lifting ring 62 in the middle of the connecting plate 61, and a plurality of tensioning screws 63 evenly arranged in the circumferential direction around the lifting ring 62. The tensioning screws 63 are rotatably connected to the connecting plate 61. A handwheel 64 is provided at the upper end of the tensioning screw 63, and an external thread is provided at the lower end of the tensioning screw 63.

[0082] When the cavity assembly 2 is disassembled and hoisted as a whole, the tensioning screw 63 passes through the through holes of the upper side plate 21 and the lower side plate 23 and the mounting hole of the locking sleeve 31 from top to bottom and is tightened, thus realizing the overall hoisting of the cavity assembly 2 and improving the efficiency of tire mold disassembly and assembly.

[0083] The quick-change mold housing assembly 3, the quick-change cavity assembly 4, and the disassembly / assembly platform 5 work together as a collaborative system to solve the problems of complex and inefficient disassembly / assembly processes in existing tire molds. Specifically, the quick-change mold housing assembly 3 uses a steel ball 35-locking shaft 32 mechanism to quickly lock and unlock the upper side plate 21 and the upper cover 14, and the lower side plate 23 and the base 11, replacing the traditional bolt connection and avoiding the tedious operation of disassembling and assembling each bolt individually. The quick-change cavity assembly 4 uses a locking rod 42-locking pin 43 structure to achieve rapid separation and engagement of the tread block 22 and the slider 12. The disassembly / assembly platform 5 further simplifies the operation process through automated mechanisms such as the first hydraulic cylinder 56, the telescopic column 53, and the second hydraulic cylinder 57, significantly shortening the overall mold disassembly / assembly time and meeting the demand for rapid mold changes in tire production.

[0084] Furthermore, the disassembly disc 45 of the quick-change mold housing assembly 3 allows for simultaneous locking and unlocking of multiple quick-change mold housing assemblies 3 via rotating the handle 452, achieving "one-click" synchronous locking and unlocking operations. The locking rod 42 of the cavity quick-change assembly 4 automatically resets under the action of the tension spring 44, reducing manual intervention. The positioning cone 54 and positioning block 52 on the disassembly platform 5 cooperate with the positioning cone groove 112 and base positioning groove 111 on the base 11 to ensure accurate mold positioning, reducing operational difficulty and error rate.

[0085] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the scope defined by the structure of the invention, they should all fall within the protection scope of the present invention.

Claims

1. A quick-change tire mold, comprising: a mold shell assembly, the mold shell assembly comprising a base, a plurality of sliders evenly distributed circumferentially on the base, an upper cover arranged on the upper end of the sliders, and a mounting ring wrapped outside the sliders; a cavity assembly arranged inside the mold shell assembly, comprising a pattern block arranged on one side of the sliders, an upper side plate arranged on the upper part of the pattern block, and a lower side plate arranged on the lower part of the pattern block; characterized in that it further comprises a mold shell quick-change assembly for locking and unlocking the upper side plate and the upper cover, and the lower side plate and the base, a plurality of mold shell quick-change assemblies are evenly distributed circumferentially along the upper cover and the base, and the mold shell quick-change assemblies of the upper side plate and the upper cover correspond in position to the mold shell quick-change assemblies of the lower side plate and the base, comprising a hollow locking sleeve, a locking shaft arranged in the locking sleeve, and a center pin arranged in the locking shaft, a locking step is arranged on the inner wall of the locking sleeve, a plurality of through holes are evenly distributed circumferentially on the lower part of the locking shaft, a steel ball is arranged in the through hole in a clearance fit, and the diameter of the steel ball is greater than the depth of the through hole; a necked part is arranged on the center pin, and the upper part of the center pin is connected to the mounting groove on the upper end of the locking shaft through a spring; for the mold shell quick-change assembly of the upper side plate and the upper cover, the locking sleeve is threadedly connected to the upper side plate, and the locking shaft is mounted on the lower part of the upper cover; for the mold shell quick-change assembly of the lower side plate and the base, the locking sleeve is threadedly connected to the lower side plate, and the locking shaft is mounted on the upper part of the base; a cavity quick-change assembly for locking and unlocking the pattern block and the slider, comprising a guide block fixedly mounted on the slider, a locking rod slidingly connected in the guide block, a lock catch arranged on one side of the locking rod, and a lock groove arranged on the lower part of the lock catch; a locking pin is arranged on one side of the pattern block, and the locking pin is threadedly connected or welded to the pattern block; the lock catch and the locking pin are arranged vertically, one end of the locking pin is in a conical structure, and the diameter of the large-diameter end of the locking pin is greater than the width of the lock groove, and the thickness of the lock catch is equal to the length of the pin rod of the locking pin extending out of the pattern block.

2. A quick change tire mold in accordance with claim 1, wherein, The end of the through hole close to the locking sleeve is provided with a necking part, and the diameter of the small-diameter part of the necking part is smaller than the diameter of the steel ball.

3. A quick change tire mold in accordance with claim 1 wherein, The upper part of the upper cover is provided with a ring groove, a plurality of mold shell quick-change assemblies are evenly distributed circumferentially and mounted in the ring groove, a dismounting disc is rotatably connected in the ring groove, a plurality of dismounting protrusions are arranged on the lower part of the dismounting disc, the number of the dismounting protrusions corresponds to the number of the mold shell quick-change assemblies, one side of the dismounting protrusion is arranged vertically, the other side is arranged in an inclined surface, and the vertical surface and the inclined surface are connected through a smooth surface.

4. A quick change tire mold in accordance with claim 3 wherein, A rotating handle is arranged on the dismounting disc, two clamping grooves for accommodating the rotating handle are arranged on the upper cover, the two clamping grooves are a locking groove and an unlocking groove, respectively, the clamping groove corresponding to the rotating handle when the dismounting protrusion extrudes the center pin is the unlocking groove, and the clamping groove corresponding to the rotating handle when the dismounting protrusion is separated from the center pin is the locking groove.

5. A quick change tire mold in accordance with claim 1 wherein, A tension spring is connected to one side of the locking rod, and the other end of the tension spring is connected to the slider.

6. A quick change tire mold in accordance with claim 1 wherein, A positioning boss is arranged on one side of the upper side plate, and an upper side plate positioning groove matching the positioning boss is arranged on the upper surface of the pattern block.

7. A tire mold quick change platform for the disassembly and assembly of the quick change tire mold of any of claims 1-6, characterized by, comprising: a dismounting platform for placing the quick-change tire mold, a first hydraulic cylinder is fixedly connected to the lower part of the dismounting platform, the end of the piston rod of the first hydraulic cylinder extends out of the dismounting platform and is connected to a supporting disc for supporting the upper side plate when the quick-change tire mold is dismounted. The telescopic column is installed on the disassembling platform, and is used for disassembling the mold shell quick change assembly of the lower side plate and the base. When the mold shell quick change assembly of the lower side plate and the base is disassembled, the telescopic column is extended and presses the center pin of the mold shell quick change assembly, so that the locking shaft is separated from the locking sleeve. When the mold shell quick change assembly of the lower side plate and the base is assembled, the telescopic column is retracted and separated from the center pin of the mold shell quick change assembly. The cavity quick change assembly disassembling mechanism is used for disassembling the cavity quick change assembly. A plurality of second hydraulic cylinders are fixedly installed on the disassembling platform cross support. The piston rod end of the plurality of second hydraulic cylinders is connected with a connecting disc. A plurality of push rods are arranged on the connecting disc. The number of the push rods corresponds to the cavity quick change assembly. The push rods are located in the gap between the sliding blocks and the pattern blocks. The upper end of the push rod extends out of the disassembling platform and is connected with a push plate. The length of the push plate is greater than the length of the locking pin extending out of the pattern block.

8. A tire mold quick change platform according to claim 7, wherein, The disassembling platform is provided with a positioning conical table. The lower part of the base is provided with a positioning conical groove corresponding to the positioning conical table. The positioning conical table and the positioning conical groove are used for the rapid positioning of the base on the disassembling platform.

9. A tire mold quick change platform according to claim 7, wherein, The disassembling platform is provided with a plurality of positioning blocks. The lower part of the base is provided with a plurality of base positioning grooves corresponding to the positioning blocks.

10. A tire mold quick change platform according to claim 7, wherein, The hanger is used for the overall hoisting of the cavity assembly. The hanger includes a connecting plate. The middle part of the connecting plate is provided with an eye ring. A plurality of tensioning screws are uniformly arranged in the circumferential direction of the eye ring. The tensioning screws are rotationally connected with the connecting plate. The upper end of the tensioning screw is provided with a hand wheel. The lower end of the tensioning screw is provided with an external thread.

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