A middle mold sleeve of a tire mold and a production apparatus thereof

Abstract

The application belongs to the technical field of tire molds, and particularly relates to a middle mold sleeve of a tire mold and a production equipment thereof, which comprises a middle mold sleeve main body, a plurality of grooves one are formed in the upper portion of the middle mold sleeve main body, a plurality of slide rails one are detachably connected in the plurality of grooves one, a pattern mechanism is slidably connected to the side surface of the slide rail one, and the pattern mechanism is drivingly connected with a driving piece; the driving piece comprises a rack and a rotating shaft, the rotating shaft penetrates through the middle mold sleeve main body, the rack is arranged on the side surface of the sliding mechanism, a sliding through hole is formed in the side surface of the slide rail one, the rack is detachably connected with the pattern mechanism through screws penetrating through the sliding through hole, the rack is matched with a gear, and the end portion of the rotating shaft located in the groove one is detachably connected in the gear. Compared with the prior art, the middle mold sleeve main body can be used for conveniently replacing different pattern mechanisms according to the subsequent production of tires with different patterns, and the cost of the subsequent production of tires is reduced.

Description

Technical Field

[0001] This invention belongs to the field of tire mold technology, specifically relating to a tire mold middle mold sleeve and its production equipment. Background Technology

[0002] Currently, the center mold sleeve occupies an important position in the tire mold. In the general tire production process, the center mold sleeve needs to cooperate with the tread blocks to give the tire a certain tread pattern. Different tread patterns on the outer periphery of the tire play different roles. However, the existing center mold sleeve is formed together with the tread blocks during production. This leads to problems when producing tires with different tread patterns. Moreover, the existing tread blocks are prone to wear and need to be replaced frequently, which increases the cost of tire production and shortens the service life of the center mold sleeve. That is, replacing the tread blocks requires replacing the corresponding center mold sleeve. Furthermore, when producing giant tires, replacing the tread blocks becomes even more difficult, resulting in low tire production efficiency.

[0003] Moreover, the existing equipment for producing the pattern block and the middle die sleeve forges the pattern block together, which is not conducive to the subsequent replacement of the pattern block. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a middle mold sleeve for a tire mold and its production equipment.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a middle mold sleeve for a tire mold, comprising a middle mold sleeve body, wherein a plurality of grooves are provided on the upper part of the middle mold sleeve body, and a slide rail is detachably connected to each of the plurality of grooves. A tread mechanism is slidably connected to the side of the slide rail, and a driving component is driven by the tread mechanism. The driving component includes a rack and a rotating shaft, the rotating shaft passing through the middle mold sleeve body, the rack being disposed on the side of the sliding mechanism, and a sliding through hole being provided on the side of the slide rail. The rack is detachably connected to the tread mechanism by a screw passing through the sliding through hole. The rack is fitted with a gear, and the end of the rotating shaft located in the groove is detachably connected to the gear.

[0006] Preferably, the pattern mechanism includes a slider and a patterned component. The slider is slidably connected to a slide rail. The patterned component is installed on the side of the slider. Multiple patterned blocks are installed on the side of the patterned component away from the slider. A part-removing groove is provided above both the slider and the slide rail. The rack is detachably connected to the slider by screws.

[0007] Preferably, the end of the patterned part is provided with a protrusion, and the end of the patterned part away from the protrusion is provided with a groove, and the protrusion and the groove cooperate with each other.

[0008] A tire mold intermediate mold sleeve production equipment includes a worktable, characterized in that two moving mechanisms are installed on the worktable, an intermediate mold sleeve body is placed between the two moving mechanisms, an auxiliary mechanism is provided on the worktable, a bracket is installed on the worktable, and a motor is installed on the bracket; a transverse component is installed at the output end of the motor, a grooving mechanism is installed at the end of the transverse component, and a part-retrieving mechanism is installed at the end of the transverse component away from the grooving mechanism; the moving mechanisms are externally connected to a CNC device, and the auxiliary mechanism, motor, grooving mechanism, and part-retrieving mechanism are all communicatively connected to the CNC device.

[0009] Preferably, the moving mechanism includes a second slide rail and a second cylinder. The second slide rail is mounted on the worktable, and a second slider is fitted on the second slide rail. A second cylinder is mounted on the second slider. A fixing member is installed at the end of the piston rod of the second cylinder, and the fixing member fits with the outer periphery of the middle mold sleeve body. A first cylinder is installed at the end of the second slide rail, and the end of the piston rod of the first cylinder is detachably connected to the second slider.

[0010] Preferably, the grooving mechanism includes a cylinder three and a connecting block. The cylinder three is mounted above the transverse member, and the piston rod of the cylinder three passes through the transverse member. The connecting block is mounted on the end of the piston rod of the cylinder three. Multiple grooving motors are mounted on the connecting block, and the output ends of the multiple grooving motors are detachably connected to milling cutters.

[0011] Preferably, the part-retrieving mechanism includes a cylinder four and a part-retrieving disc. The cylinder four is installed at the end of the transverse component, and the piston rod of the cylinder four passes through the transverse component. The part-retrieving disc is installed at the end of the piston rod of the cylinder four. Multiple extraction components are installed on the outer periphery of the part-retrieving disc, and the ends of the multiple extraction components are equipped with part-retrieving protrusions.

[0012] Preferably, the auxiliary mechanism includes a cylinder five and multiple auxiliary components. The cylinder five is installed inside the worktable, and the piston rod of the cylinder five passes through the top of the worktable. A placement component is installed at the end of the piston rod of the cylinder five, and the outer periphery of the placement component mates with the inner side of the middle mold sleeve body. The auxiliary components include a cylinder six and a slide rail three. The cylinder six is ​​installed inside the worktable, and the piston rod of the cylinder six passes through the top of the worktable. The slide rail three is installed at the end of the piston rod of the cylinder six, and a slider three is slidably connected to the slide rail three. An auxiliary drive component is installed at the end of the slide rail three, and the auxiliary drive component drives the slider three to move. A motor two and a motor three are installed above the slider three. A processing tool one is detachably connected to the end of the output shaft of the motor two, and a processing tool two is detachably connected to the end of the output shaft of the motor three.

[0013] Preferably, the auxiliary drive component includes a servo motor and a ball screw. The servo motor is mounted on the end of the slide rail three and is driven by the ball screw. The slide rail three is located on the ball screw and cooperates with the ball screw.

[0014] Preferably, the worktable has multiple grooves 3 on its upper surface, and cylinders 7 are installed in the multiple grooves 3. A fixed motor is installed at the piston rod end of the cylinder 7, and a magnetic screwdriver is installed at the output end of the fixed motor. Both the cylinder 7 and the fixed motor are communicatively connected to the CNC device.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are as follows: (1) The existing middle mold sleeve and tread block are a whole. When producing tires of the same size but different tread patterns, the middle mold sleeve needs to be replaced. However, the present invention has multiple grooves on the middle mold sleeve body, and each groove can be detachably connected to a slide rail. The slide rail is slidably connected to the side of the slide rail. The drive unit drives the tread mechanism to move along the slide rail, so that the middle mold sleeve body can easily replace different tread mechanisms when producing tires with different tread patterns, thus reducing the cost of tire production. (2) In the production of giant tires, it is difficult to replace the tread blocks. However, the present invention sets up a drive component to drive the tread mechanism to move along the slide rail. The tread mechanism, the slide rail, and the drive component are all hard alloys. Hard alloys have good hardness and wear resistance, as well as strong corrosion resistance and high temperature resistance. They can be used in harsher working environments, thereby increasing the service life of the middle mold body and improving tire production efficiency. (3) A protrusion is installed at the end of the patterned part, and a groove is provided at the end of the patterned part away from the protrusion. The protrusion and the groove cooperate to make the adjacent patterned parts accurately assembled. (4) Existing equipment for producing die sleeves forges the pattern block and the die sleeve together. However, this invention installs two moving mechanisms and an auxiliary mechanism on the workbench. The main body of the die sleeve is placed between the two moving mechanisms. A bracket is installed on the workbench, and a motor is installed on the bracket. A transverse component is installed at the output end of the motor. A grooving mechanism and a part-removing mechanism are installed at both ends of the transverse component. The grooving mechanism and the main body of the die sleeve are used to groove the groove. The part-removing mechanism lifts the pattern mechanism and the slide rail and the auxiliary mechanism for auxiliary processing. This can effectively improve the production efficiency of the die sleeve. The pattern block and the die sleeve are separate, and the pattern block can be quickly replaced later. (5) The moving mechanism is connected to the CNC device. The auxiliary mechanism, motor one, grooving mechanism, picking mechanism, cylinder seven and fixed motor are all connected to the CNC device, which improves the accuracy of the middle mold production process and can also reduce the participation of personnel. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below: Figure 1 The main view of the middle mold sleeve of the tire mold provided in Example 1; Figure 2 This is a schematic diagram of the middle mold sleeve for a tire mold. Figure 3 A top view of the production equipment for the middle mold sleeve of a tire mold; Figure 4 This is a structural diagram of the production equipment for the middle mold sleeve of a tire mold. Figure 5 Left view of the equipment used for producing the middle mold sleeve of a tire mold; Figure 6 A schematic diagram of the production equipment for the middle mold sleeve of a tire mold; Figure 7 This is a diagram showing the internal structure of the workbench in the production equipment for the middle mold sleeve of a tire mold. Figure 8 A top view of the auxiliary mechanism in the production equipment for the middle mold sleeve of a tire mold; Figure 9 for Figure 8 Enlarged view of point A inside.

[0017] Explanation of reference numerals in the attached figures: 1—Middle mold sleeve body, 2—Slider 1, 3—Slide rail 1, 4—Rack, 5—Gear, 6—Rotating shaft, 7—Protrusion 1, 8—Patterned part, 9—Patterned block, 10—Fixing hole, 11—Worktable, 12—Slide rail 2, 13—Cylinder 1, 14—Slider 2, 15—Cylinder 2, 16—Fixing part, 17—Motor 1, 18—Horizontal part, 19—Cylinder 3, 20—Cylinder 4, 21—Extraction part, 22—Connecting block, 23—Milling cutter, 24—Cylinder 5, 25—Cylinder 6, 26—Cylinder 7, 27—Slide rail 3, 28—Servo motor, 29—Slider 3, 30—Motor 2, 31—Motor 3, 32—Ball screw, 33—Bracket. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1 The following is in conjunction with the appendix Figure 1-Appendix Figure 9 To further describe the present invention, a middle mold sleeve for a tire mold, such as... Figures 1-2 As shown, the device includes a middle mold sleeve body 1. Multiple grooves are provided on the upper part of the middle mold sleeve body 1. Each groove is detachably connected to a slide rail 3. A pattern mechanism is slidably connected to the side of the slide rail 3. The pattern mechanism is driven by a driving component, which includes a rack 4 and a rotating shaft 6. The rotating shaft 6 passes through the middle mold sleeve body 1, with its end located within a groove. The rack 4 is positioned on the side of the sliding mechanism. A sliding through hole is provided on the side of the slide rail 3. The rack 4 is detachably connected to the pattern mechanism via a screw that passes through the sliding through hole. The rack 4 is fitted with a gear 5. The end of the rotating shaft 6 located within the groove is detachably connected to the gear 5.

[0021] like Figures 1-2 As shown, the pattern mechanism includes a slider 2 and a patterned component 8. The slider 2 is slidably connected to the slide rail 3. The patterned component 8 is installed on the side of the slider 2. Multiple patterned blocks 9 are installed on the side of the patterned component 8 away from the slider 2. A part-removing groove is provided above both the slider 2 and the slide rail 3. The rack 4 is detachably connected to the slider 2 by screws.

[0022] like Figures 1-2 As shown, a protrusion 7 is installed at the end of the patterned part 8, and a groove 2 is provided at the end of the patterned part 8 away from the protrusion 7, with the protrusion 7 and the groove 2 cooperating.

[0023] like Figures 1-2 As shown, the patterned part 8 is arc-shaped and can fit with the inner side of the middle mold body 1.

[0024] A type of equipment for producing intermediate mold sleeves for tire molds, used to produce intermediate mold sleeves for tire molds, such as... Figures 3-9 As shown, the device includes a worktable 11, on which two moving mechanisms are installed. A middle mold sleeve body 1 is placed between the two moving mechanisms. An auxiliary mechanism is provided on the worktable 11. A bracket 33 is installed on the worktable 11. A motor 17 is installed on the bracket 33. A transverse component 18 is installed at the output end of the motor 17. A grooving mechanism is installed at the end of the transverse component 18. A part-removing mechanism is installed at the end of the transverse component 18 away from the grooving mechanism.

[0025] like Figures 3-9As shown, the moving mechanism includes a slide rail 12 and a cylinder 15. The slide rail 12 is mounted on the worktable 11. A slider 14 is fitted on the slide rail 12. A cylinder 15 is mounted on the slider 14. A fixing part 16 is installed at the end of the piston rod of the cylinder 15. The fixing part 16 is fitted with the outer periphery of the middle mold sleeve body 1. A cylinder 13 is installed at the end of the slide rail 12. The piston rod end of the cylinder 13 is detachably connected to the slider 14. The piston rod end of the cylinder 15 of one of the two moving mechanisms is close to the piston rod end of the cylinder 15 of the other moving mechanism. The fixing parts 16 at the piston rod ends of the cylinders 15 of the two moving mechanisms are fitted with the middle mold sleeve body 1, so that the middle mold sleeve body 1 is fixed in the two moving mechanisms.

[0026] like Figures 3-9 As shown, the grooving mechanism includes a cylinder 19 and a connecting block 22. The cylinder 19 is installed above the transverse member 18, and the piston rod of the cylinder 19 passes through the transverse member 18. The connecting block 22 is installed at the end of the piston rod of the cylinder 19. Multiple grooving motors are installed on the connecting block 22, and the output ends of the multiple grooving motors are detachably connected to milling cutters 23.

[0027] like Figures 3-9 As shown, the part-retrieving mechanism includes a cylinder 20 and a part-retrieving plate. The cylinder 20 is installed at the end of the transverse member 18, and the piston rod of the cylinder 20 passes through the transverse member 18. The part-retrieving plate is installed at the end of the piston rod of the cylinder 20. Multiple extraction parts 21 are installed on the outer periphery of the part-retrieving plate. The ends of the multiple extraction parts 21 are equipped with part-retrieving protrusions, which cooperate with the part-retrieving grooves.

[0028] like Figures 3-9 As shown, the auxiliary mechanism includes cylinder 24 and multiple auxiliary components. A cavity is provided in the worktable 11. Cylinder 24 is vertically installed in the cavity of the worktable 11. The piston rod of cylinder 24 passes through the top of the worktable 11. A placement component is installed at the end of the piston rod of cylinder 24. The outer periphery of the placement component is engaged with the inner side of the middle mold sleeve body 1.

[0029] like Figures 3-9 As shown, the auxiliary components include cylinder 6 25 and slide rail 3 27. Cylinder 6 25 is vertically installed in cavity 1 of worktable 11. The piston rod of cylinder 6 25 passes through the top of worktable 11. Slide rail 3 27 is installed at the end of the piston rod of cylinder 6 25. Slider 3 29 is slidably connected to slide rail 3 27. An auxiliary drive component is installed at the end of slide rail 3 27. The auxiliary drive component drives slider 3 29 to move. Motor 2 30 and motor 3 31 are installed above slider 3 29. Machining tool 1 is detachably connected to the end of the output shaft of motor 3 31. Machining tool 2 is detachably connected to the end of the output shaft of motor 3 31.

[0030] like Figures 3-9As shown, the auxiliary drive components include a servo motor 28 and a ball screw 32. The servo motor 28 is mounted on the end of the slide rail 27 and is driven by the ball screw 32. The slider 29 is located on the ball screw 32 and cooperates with the ball screw 32.

[0031] like Figures 6-9 As shown, multiple grooves 3 are provided above the worktable 11. All of the multiple grooves 3 communicate with the cavity 1 inside the worktable 11. Cylinder 7 26 is installed in the multiple grooves 3. A fixed motor is installed at the piston rod end of cylinder 7 26. A magnetic screwdriver is installed at the output end of the fixed motor.

[0032] In this invention, the number of groove one is the same as the number of auxiliary parts, groove three, slotted motor, and extraction part 21.

[0033] In this invention, the patterned parts 8, patterned blocks 9, slide rail 3, slider 2, rack 4, and gear 5 are all made of cemented carbide.

[0034] In this invention, the first processing tool is a drill bit or a handle, and the second processing tool is a drill bit or a magnetic screwdriver.

[0035] In this invention, the rotating shaft 6 drives the gear 5 to rotate. The gear 5 cooperates with the rack 4. Since the rack 4 and the slider 2 are detachably connected by screws, the rack 4 drives the screw to move along the sliding through hole on the side of the slide rail 3, so that the slider 2 drives the pattern mechanism to move along the slide rail 3.

[0036] In this invention, cylinders 13 and 15 of the moving mechanism are externally connected to a CNC device; cylinders 24, 25, 30, 31 and servo motor 28 of the auxiliary mechanism are all communicatively connected to the CNC device; cylinders 19 and 21 of the grooving mechanism are all communicatively connected to the CNC device; cylinder 20 of the picking mechanism is communicatively connected to the CNC device; and motors 17, 26 and 21 of the fixed mechanism are all communicatively connected to the CNC device.

[0037] A method for producing the middle mold sleeve of a tire mold includes the following steps: Step 1: Place the middle mold sleeve body 1 between the two moving mechanisms. The CNC device controls the grooving mechanism to groove the middle mold sleeve body 1 into groove 1. The CNC device controls the part-removing mechanism to lift the slide rail 3. Step 2: The CNC device controls the moving mechanism to move the middle mold sleeve body 1 to below the part-removing mechanism. Then, the part-removing mechanism is controlled to place the slide rail 3 in the appropriate position in the groove. The operator places the screw on the magnetic screwdriver. The CNC device activates cylinder 26 and the fixed motor to fix the slide rail 3 to the middle mold sleeve body 1. Step 3: The CNC device controls the moving mechanism to move the middle mold sleeve body 1 to the initial position. The CNC device controls cylinder six 25 to move slide rail three 27 upward. After slide rail three 27 moves to the appropriate position, servo motor 28, motor two 30 and motor three 31 are turned on to process the rotation shaft 6 placement hole and screw fixing hole 10 of the middle mold sleeve body 1. Step 4: The operator places the rack 4 in the first groove and the rotating shaft 6 in the pre-machined placement hole. The end of the rotating shaft 6 located in the first groove is detachably connected to the gear 5. Then, the CNC device controls the part-picking mechanism to lift the pattern mechanism. The CNC device controls the motor 17 to rotate until the part-picking mechanism is above the middle mold sleeve body 1. Then, the part-picking mechanism is controlled to engage the pattern mechanism with the slide rail 3. Step 5: The operator changes the type of machining tool 2 at the output shaft end of motor 31, disassembles machining tool 1 at the output shaft end of motor 20, and places the screw on machining tool 2. The CNC device controls motor 31 and servo motor 28 to fix the screw to rack 4 and pattern mechanism. Step Six: The operator disassembles the machining tool two at the output shaft end of motor three 31, replaces the type of machining tool one, and detachably connects it to the output shaft end of motor two 30. The CNC device controls motor two 30 and servo motor 28 to make machining tool one drive the rotating shaft 6 to rotate, which drives gear 5 and rack 4 to cooperate, thereby moving the pattern mechanism along slide rail one 3 to the appropriate position.

[0038] In this invention, step one is as follows: the inner side of the formed middle mold sleeve body 1 is placed on the outer periphery of the placement part. The CNC device activates cylinder two 15. The piston rod of cylinder two 15 drives the fixing part 16 to move towards the middle mold sleeve body 1 until the fixing part 16 contacts the outer periphery of the middle mold sleeve body 1. The CNC device controls cylinder 25 to drive the placement part to move downward, so that the placement part is separated from the middle mold sleeve body 1. The CNC device activates cylinder three 19. After cylinder three 19 drives the connecting block 22 to move downward to a suitable position, the CNC device activates the grooving motor cylinder three 19, so that the milling cutter 23 at the output end of the grooving motor rotates to groove the middle mold sleeve body 1 to groove the first groove. Cylinder three 19 drives the grooving motor to move downward continuously, controlling the groove depth of the first groove. After grooving is completed, the grooving motor stops operating, and cylinder three 19 drives the connecting block 22 back to its original position. The operator mates the part-taking groove of slide rail one 3 with the part-taking protrusion at the end of the extraction part 21.

[0039] In this invention, step two is as follows: The CNC device controls cylinder 13, which drives slider 14 to move along slide rail 12, so that the middle mold sleeve body 1 moves to the bottom of the picking plate. The CNC device controls cylinder 20, which drives the picking piece 21 and slide rail 3 to move downward until the bottom of slide rail 3 contacts the bottom of groove 1. CNC device 20 is then turned off. The operator places the screw on the magnetic screwdriver at the output end of the fixed motor. The CNC device turns on cylinder 26 and the fixed motor, so that the screw fixes slide rail 3 to the middle mold sleeve body 1. The CNC device controls cylinder 20 to return the picking plate to its original position.

[0040] In this invention, step three is as follows: the CNC device controls cylinder 13 to move the middle mold sleeve body 1 to the initial position. The CNC device controls cylinder 25 to drive slide rail 27 to move upward to a suitable position. Then, cylinder 25 is turned off, and servo motors 28, 30, and 31 are turned on to process the rotating shaft 6 placement hole and screw fixing hole 10 of the middle mold sleeve body 1. Servo motor 28 drives ball screw 32 to cooperate with slider 29. Slider 29 drives motors 30 and 31 to move along slide rail 27.

[0041] In this invention, step four is as follows: The operator places the rack 4 in the groove 1, places the rotating shaft 6 in the machined placement hole, and detachably connects the end of the rotating shaft 6 located in the groove 1 to the gear 5. The operator mates the picking slot of the slider 2 in the pattern mechanism with the picking protrusion at the end of the extractor 21. Then, the CNC device controls the motor 17 to rotate until the picking plate is above the middle mold sleeve body 1. The CNC device controls the cylinder 20, which drives the extractor 21 and the slider 2 to move downward, so that the slider 2 mates with the slide rail 3.

[0042] In this invention, step five is as follows: the operator changes the type of the processing tool two at the output shaft end of motor three 31 (initially a drill bit, now replaced by a magnetic screwdriver), disassembles the processing tool one at the output shaft end of motor two 30, the operator places the screw on the processing tool two (magnetic screwdriver), and the CNC device controls motor three 31 and servo motor 28 to fix the screw to the rack 4 and slider one 2.

[0043] In this invention, step six is ​​as follows: The operator disassembles the processing tool two (magnetic screwdriver) at the output end of motor three 31, changes the type of processing tool one (initially a drill bit, now replaced with a handle), and then detachably connects it to the output shaft end of motor two 30. The CNC device controls the servo motor 28 of motor two 30, so that the processing tool one (handle) cooperates with the rotating shaft 6, driving the rotating shaft 6 to rotate. The rotating shaft 6 drives the gear 5 to cooperate with the rack 4, thereby causing the slider one 2 to drive the patterned part 8 and the patterned block 9 to move along the slide rail one 3 to a suitable position, completing the production of the middle mold sleeve of the tire mold.

[0044] In this invention, slider 2, patterned part 8, and patterned block 9 are integrated as a whole.

[0045] As a technical solution of this invention, the provided hardware configuration is merely to facilitate the implementation of specific braking control of cylinders 13, 15, 19, 20, 24, 25, 26, 17, 30, 31, slotted motor, fixed motor, and servo motor 28 based on the hardware facilities. How to specifically implement braking control and the braking control method are not the technical problems to be solved or the objects of protection of this invention. Furthermore, the communication methods between the devices all adopt existing communication methods and are not the inventive point of this application.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A middle mold sleeve for a tire mold, comprising a middle mold sleeve body (1), characterized in that, The upper part of the middle mold sleeve body (1) is provided with multiple grooves, and each of the multiple grooves is detachably connected to a slide rail (3). The slide rail (3) is slidably connected to a pattern mechanism on its side, and the pattern mechanism is driven by a driving component. The driving component includes a rack (4) and a rotating shaft (6). The rotating shaft (6) passes through the middle mold body (1). The rack (4) is located on the side of the sliding mechanism. The side of the slide rail (3) is provided with a sliding through hole. The rack (4) is detachably connected to the pattern mechanism by a screw that passes through the sliding through hole. The rack (4) is fitted with a gear (5). The end of the rotating shaft (6) located in the groove is detachably connected to the gear (5).

2. The intermediate mold sleeve of the tire mold according to claim 1, characterized in that, The pattern mechanism includes a slider (2) and a patterned component (8). The slider (2) is slidably connected to the slide rail (3). The patterned component (8) is installed on the side of the slider (2). Multiple patterned blocks (9) are installed on the side of the patterned component (8) away from the slider (2). A pick-up slot is provided above both the slider (2) and the slide rail (3). The rack (4) is detachably connected to the slider (2) by screws.

3. The intermediate mold sleeve of the tire mold according to claim 2, characterized in that, The end of the patterned part (8) is provided with a protrusion (7), and the end of the patterned part (8) away from the protrusion (7) is provided with a groove (2), and the protrusion (7) and the groove (2) cooperate.

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