Tyre building apparatus

Abstract

The utility model provides a kind of tire blank puncture device and forming equipment, tire blank puncture device, comprising: two annular frames and two annular puncture pieces, two annular frames are oppositely arranged along the axial direction of blank;Two annular frames are away from each other or close to each other along the axial direction of blank;Each annular frame is provided with containing groove, each containing groove is located on the side of corresponding annular frame close to blank;The inner diameter of each containing groove is greater than the diameter of blank;Two annular puncture pieces are one-to-one corresponding with two annular frames, each annular puncture piece is arranged in corresponding containing groove;Each annular puncture piece has puncture part, and the puncture part of each annular puncture piece is used to puncture blank;Wherein, when puncturing blank, two annular frames are close to each other along the axial direction of blank.The tire blank puncture device can effectively solve the technical problem of puncturing blank by manual method in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of tire manufacturing technology, specifically to a tire blank puncture device and forming equipment. Background Technology

[0002] In the tire manufacturing process, the rubber material, cords, steel wire rings, and other semi-finished components are first bonded and pressed together layer by layer according to the design requirements using a tire blank forming machine to form a tire blank with a complete structure. Then, the tire blank is sent to a vulcanizing machine for vulcanization and shaping under high temperature and high pressure conditions, ultimately completing the tire manufacturing process.

[0003] However, during the tire blank forming process, insufficient compression or poor venting often leads to localized air bubbles or bladders in critical areas such as the bead, sidewall, and shoulder. If these defects are not eliminated before vulcanization, they will be sealed and solidified during the vulcanization process, causing "air pockets" inside the finished tire. This seriously affects the tire's structural integrity and safety, and may even lead to quality accidents such as delamination and bulges.

[0004] Currently, the industry commonly uses manual inspection and tire repair to address these issues: operators visually inspect and use experience-based methods such as tapping and listening to identify air bubbles, then use an awl to puncture the defective area to release air. This method is highly dependent on the operator's skill level and practical experience. Improper operation can easily lead to missed air bubbles and poor control of puncture depth—insertions that are too shallow cannot effectively release air, while punctures that are too deep may damage or fray the tire's steel cords, thus weakening the tire's strength. Furthermore, manual tire repair is slow, labor-intensive, and inefficient, and the quality of repair varies significantly between different personnel, making standardized and consistent quality control difficult and hindering the automation and intelligent development of tire production.

[0005] Therefore, the existing technology still needs further development. Utility Model Content

[0006] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a tire blank puncture device and forming equipment to solve the technical problem of manually puncturing tire blanks in the prior art.

[0007] To achieve the above-mentioned technical objectives, according to one aspect of this utility model, a tire carcass puncture device is provided, comprising: two annular frames and two annular puncture members, the two annular frames being arranged opposite each other along the axial direction of the tire carcass; the two annular frames being either far apart from or close to each other along the axial direction of the tire carcass; each annular frame having a receiving groove, each receiving groove being located on the side of the corresponding annular frame closer to the tire carcass; the inner diameter of each receiving groove being larger than the diameter of the tire carcass; the two annular puncture members being arranged one-to-one with the two annular frames, each annular puncture member being disposed in a corresponding receiving groove; each annular puncture member having a puncture portion, the puncture portion of each annular puncture member being used to puncture the tire carcass; wherein, during the puncture operation of the tire carcass, the two annular frames are close to each other along the axial direction of the tire carcass to clamp the tire carcass, so that the puncture portions of the two annular puncture members puncture both sides of the tire carcass respectively.

[0008] Furthermore, the annular puncture member includes: an annular support plate disposed on a receiving groove; multiple rows of puncture needles disposed on the annular support plate, the multiple rows of puncture needles being spaced apart along the radial direction of the annular support plate; each row of puncture needles having multiple puncture needles, the multiple puncture needles being spaced apart along the circumferential direction of the annular support plate; wherein, the multiple rows of puncture needles form the puncture portion of the annular puncture member.

[0009] Furthermore, the tire blank puncture device further includes: a limiting member, at least a portion of which is disposed within a receiving groove, and at least a portion of which protrudes from the bottom wall of the receiving groove; the limiting member extends along the axial direction of the annular frame, and is spaced apart from the annular puncture member, the limiting member being used to contact the tire blank to limit the puncture depth of the puncture part on the tire blank; wherein, each receiving groove has at least one limiting member.

[0010] Furthermore, the tire blank puncture device also includes: at least two drive cylinders, the piston rod of one of the drive cylinders is drivenly connected to one of the two annular frames, and the piston rod of the other drive cylinder is drivenly connected to the other annular frame; the piston rod of each drive cylinder is telescopically arranged along the axial direction of the tire blank so as to drive the corresponding annular frame to move through the extension and retraction of each piston rod.

[0011] Furthermore, the tire blank puncture device also includes a control unit, which is communicatively connected to each drive cylinder to control the synchronous start or stop of each drive cylinder.

[0012] Furthermore, the tire blank puncture device also includes: a position detection component, which is communicatively connected to the control component. The position detection component is used to detect whether the tire blank to be punctured has reached a preset position and transmits the detection result to the control component. The control component selects whether to control the synchronous start of each drive cylinder based on the result of the position detection component.

[0013] Furthermore, the tire blank puncture device also includes: an air supply line, which is connected to each drive cylinder for supplying compressed gas to each drive cylinder; and a solenoid valve, which is located on the air supply line and is used to control the opening and closing of the air supply line. The solenoid valve is electrically connected to a control component, which is used to control the opening and closing of the solenoid valve.

[0014] Furthermore, the tire blank puncture device also includes a gas regulating valve, which is located on the air supply line and between the solenoid valve and each drive cylinder. The gas regulating valve is used to regulate the flow rate of compressed gas delivered to each drive cylinder.

[0015] Furthermore, the tire blank puncture device also includes: two support plates, each corresponding to one of the two annular frames, each support plate being fixedly installed and located on the side of the corresponding annular frame away from the other annular frame; the fixed end of each drive cylinder is fixed to the corresponding support plate, and the free end of the piston rod of each drive cylinder passes through the corresponding support plate and connects to the corresponding annular frame; at least two guide rods, each extending along the extension and retraction direction of the piston rod, one of the guide rods being movably inserted through one of the support plates along the extension and retraction direction of the piston rod, and the guide rod being connected to the annular frame corresponding to one of the support plates; the other guide rod being movably inserted through the other support plate along the extension and retraction direction of the piston rod, and the other guide rod being connected to the annular frame corresponding to the other support plate.

[0016] According to another aspect of the present invention, a forming device is provided, comprising: a tire blank piercing device, wherein the tire blank piercing device is the aforementioned tire blank piercing device.

[0017] Beneficial effects: Applying the technical solution of this utility model, the tire carcass puncture device provided by this utility model includes: two annular frames and two annular puncture members. The two annular frames are spaced apart along the axial direction of the tire carcass and are arranged opposite to each other. The two annular frames are movably arranged along the axial direction of the tire carcass, allowing them to move closer or further apart. Each of the two annular frames has a receiving groove, with each groove located on the side of the corresponding annular frame closer to the tire carcass. The inner diameter of each receiving groove is larger than the diameter of the tire carcass, so that when the two annular frames approach each other, at least a portion of both sides of the tire carcass is located within the corresponding receiving groove. The two annular puncture members are arranged one-to-one with the two annular frames, each annular puncture member is disposed within its corresponding receiving groove, and each annular puncture member is located on the bottom wall of the receiving groove, i.e., the inner wall opposite to the opening of the receiving groove. Each annular puncture member has a puncture portion for puncturing the tire carcass. During the puncture operation on the embryo, two annular frames approach each other along the axial direction of the embryo, with at least a portion of the embryo located in the two receiving grooves, thereby clamping the embryo and allowing the puncture portions of the two annular puncture pieces to puncture both sides of the embryo respectively.

[0018] Therefore, by setting up two annular frames arranged opposite each other along the tire blank axis and their corresponding annular puncture components, this device can simultaneously complete the puncture operation on both sides of the tire blank in a single clamping action, avoiding the cumbersome process of traditional single-sided sequential operation and significantly improving work efficiency. The symmetrical force application design on both sides ensures a balanced force distribution, effectively preventing uneven loading or tire blank displacement during device operation and ensuring a stable and reliable puncture process. Furthermore, the annular puncture component is fixed to the bottom wall of the receiving groove. When the annular frame moves it closer to the tire blank, the puncture part of the annular puncture component can accurately act on the tire blank's sidewall, shoulder, and other areas prone to air bubbles, achieving circumferential array puncture, fully covering potential defect areas, improving the thoroughness of air venting, and effectively reducing the risk of quality defects such as bulging and delamination caused by trapped air after vulcanization. Furthermore, this device achieves simultaneous bilateral puncture through a mechanical structure. Combined with an automated control system, it completes a standardized and procedural "clamp and puncture" process, completely replacing manual operation and eliminating quality fluctuations caused by differences in operator skill. This ensures that each tire blank is processed according to uniform process standards. Simultaneously, the entire puncture process can be completed quickly, significantly shortening the operation cycle and increasing processing capacity per unit time, meeting the high-speed, continuous, and intelligent operation requirements of modern tire production lines. This tire blank puncture device effectively solves the technical problems of manually puncturing tire blanks in existing technologies. Attached Figure Description

[0019] Figure 1 A schematic diagram of the tire blank puncture device provided according to the present invention is shown; Figure 2A schematic diagram showing the connection of the annular frame, annular puncture member, and limiting member in the tire blank puncture device provided according to the present invention is shown. Figure 3 A schematic diagram of compressed gas delivery in the tire blank puncture device provided according to the present invention is shown.

[0020] The above figures include the following reference numerals: 1. Annular frame; 10. Receiving groove; 2. Annular puncture component; 21. Annular support plate; 22. Puncture needle; 3. Limiting component; 4. Drive cylinder; 41. Piston rod; 5. Air supply line; 6. Solenoid valve; 7. Gas regulating valve; 100. Tire blank. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0022] Please see Figures 1 to 3 According to an embodiment of the present invention, a tire carcass puncture device is provided, comprising: two annular frames 1 and two annular puncture members 2. The two annular frames 1 are arranged opposite each other along the axial direction of the tire carcass 100; the two annular frames 1 are either far apart or close to each other along the axial direction of the tire carcass 100; each annular frame 1 is provided with a receiving groove 10, and each receiving groove 10 is located on the side of the corresponding annular frame 1 close to the tire carcass 100; the inner diameter of each receiving groove 10 is larger than the diameter of the tire carcass 100; the two annular puncture members 2 are arranged one-to-one with the two annular frames 1, and each annular puncture member 2 is disposed in the corresponding receiving groove 10; each annular puncture member 2 has a puncture part, and the puncture part of each annular puncture member 2 is used to puncture the tire carcass 100; wherein, when puncturing the tire carcass 100, the two annular frames 1 are close to each other along the axial direction of the tire carcass 100 to clamp the tire carcass 100, so that the puncture parts of the two annular puncture members 2 puncture both sides of the tire carcass 100 respectively.

[0023] As can be seen, the tire blank puncture device provided by this utility model includes: two annular frames 1 and two annular puncture elements 2. The two annular frames 1 are spaced apart along the axial direction of the tire blank 100 and are arranged opposite to each other. The two annular frames 1 are movably arranged along the axial direction of the tire blank 100 so that the two annular frames 1 can move closer to each other or further away. Each of the two annular frames 1 has a receiving groove 10. Each receiving groove 10 is located on the side of the corresponding annular frame 1 closer to the tire blank 100, and the inner diameter of each receiving groove 10 is larger than the diameter of the tire blank 100, so that when the two annular frames 1 are close to each other, at least a portion of both sides of the tire blank 100 are respectively located in the corresponding receiving groove 10. Two annular puncture elements 2 are correspondingly arranged with two annular frames 1. Each annular puncture element 2 is disposed in a corresponding receiving groove 10 and is located on the bottom wall of the receiving groove 10 (i.e., the inner wall opposite to the opening of the receiving groove 10). Each annular puncture element 2 has a puncture portion for puncturing the tire embryo 100. During the puncture operation on the tire embryo 100, the two annular frames 1 move closer to each other along the axial direction of the tire embryo 100, and at least a portion of the tire embryo 100 is located in the two receiving grooves 10, thereby clamping the tire embryo 100 and causing the puncture portions of the two annular puncture elements 2 to puncture both sides of the tire embryo 100 respectively.

[0024] Therefore, by setting up two annular frames 1 and their corresponding annular puncture parts 2 arranged axially opposite to each other along the tire blank 100, this device can simultaneously complete the puncture operation on both sides of the tire blank 100 in one clamping action, avoiding the cumbersome process of traditional single-sided sequential operation and significantly improving work efficiency. The design of symmetrical force application on both sides ensures a balanced force distribution, effectively preventing uneven loading or tire blank displacement during device operation and ensuring a stable and reliable puncture process. Furthermore, the annular puncture parts 2 are fixed to the bottom wall of the receiving groove 10. When the annular frame 1 moves it closer to the tire blank 100, the puncture part of the annular puncture part 2 can accurately act on the tire sidewall, tire shoulder, and other areas prone to air bubbles, achieving circumferential array puncture, fully covering potential defect areas, improving the thoroughness of air venting, and effectively reducing the risk of quality defects such as bulging and delamination caused by air pockets after vulcanization. Furthermore, this device achieves simultaneous bilateral puncture through a mechanical structure. Combined with an automated control system, it completes a standardized and procedural "clamp and puncture" process, completely replacing manual operation and eliminating quality fluctuations caused by differences in operator skill. This ensures that each tire blank is processed according to uniform process standards. Simultaneously, the entire puncture process can be completed quickly, significantly shortening the operation cycle and increasing processing capacity per unit time, meeting the high-speed, continuous, and intelligent operation requirements of modern tire production lines. This tire blank puncture device effectively solves the technical problems of manually puncturing tire blanks in existing technologies.

[0025] Specifically, such as Figure 2As shown, the annular puncture member 2 includes: an annular support plate 21 and multiple rows of puncture needles 22. The annular support plate 21 is disposed on the receiving groove 10; the multiple rows of puncture needles 22 are disposed on the annular support plate 21 and are spaced apart along the radial direction of the annular support plate 21; each row of puncture needles 22 has multiple puncture needles 22 and the multiple puncture needles 22 are spaced apart along the circumferential direction of the annular support plate 21; wherein, the multiple rows of puncture needles 22 form the puncture portion of the annular puncture member 2.

[0026] With the above-described structure, multiple rows of puncture needles 22 are arranged radially at intervals along the annular support plate 21. Each row contains multiple puncture needles distributed circumferentially, forming an annular array-style puncture layout. This design can simultaneously cover complex curved areas such as the tire sidewall, tire shoulder, and transition rounded corners of the tire blank, effectively penetrating potential air accumulation locations and avoiding quality defects such as air pockets and bulges after vulcanization due to localized missed punctures, ensuring a comprehensive and reliable venting process. Simultaneously, the puncture needles 22 are fixed to the annular support plate 21, which serves as the overall load-bearing base. This not only provides a solid mounting foundation for the puncture needles 22 but also evenly transmits clamping force, preventing individual needles from bending or breaking due to excessive stress. Furthermore, the annular structure itself has excellent deformation resistance, ensuring geometric accuracy and puncture consistency during repeated operations. In addition, the puncture needle 22 is fixed on the annular support plate 21, which is located on the bottom wall of the receiving groove 10. Thus, when the puncture needle is worn or needs to be adapted to a new tire type, it is not necessary to replace the needle body one by one, but only to replace the whole body, which greatly reduces maintenance costs and downtime.

[0027] Furthermore, each puncture needle 22 extends along the depth direction of the receiving groove 10.

[0028] In the first embodiment of the tire blank puncture device provided by this utility model, the positioning position of the limiting member 3 is as follows: Figure 2As shown, the tire blank puncture device further includes: a limiting member 3, at least a portion of which is disposed within the receiving groove 10, and at least a portion of which protrudes from the bottom wall of the receiving groove 10; the limiting member 3 extends along the axial direction of the annular frame 1, and is spaced apart from the annular puncture member 2; the limiting member 3 is used to contact the tire blank 100 to limit the puncture depth of the puncture part into the tire blank 100; wherein, each receiving groove 10 has at least one limiting member 3. With this structural arrangement, by setting the limiting member 3 and controlling its protrusion length within the receiving groove 10, the limiting member 3 forms a rigid stop after contacting the surface of the tire blank 100 during the puncture operation, effectively preventing the puncture part from continuing to penetrate, thereby ensuring that the puncture depth is controllable. It can be seen that by precisely adjusting the extension length of the limiting member 3 within the receiving groove 10, millimeter-level precise control of the puncture depth can be achieved, so that the puncture only acts on the surface rubber area where the air bubble is located, avoiding damage to the internal steel cord or reinforcement structure, and effectively ensuring the integrity of the tire carcass and the safety of use.

[0029] Optionally, the limiting member 3 is movably inserted into the receiving groove 10 along the axial direction of the ring frame 1, and can be extended and adjusted relative to the ring frame 1; by adjusting the extension length of the limiting member 3 in the receiving groove 10, it can flexibly adapt to the process requirements of different puncture depths.

[0030] Alternatively, the limiting member 3 is integrally disposed within the receiving groove 10 and detachably connected to the annular frame 1; the limiting member 3 itself is a telescopic structure (such as a sleeve type, spring piston rod or threaded adjustment mechanism), and has telescopic capability along the axial direction of the annular frame 1, so that its extension length in the receiving groove 10 can be adjusted according to actual needs, and can flexibly adapt to the process requirements of different puncture depths.

[0031] Alternatively, the limiting component 3 can be installed entirely within the receiving groove 10 and detachably connected to the ring frame 1 via threads, snaps, or fasteners; by replacing the limiting component 3 with different lengths, it can flexibly adapt to the process requirements of different puncture depths, thereby improving the versatility and ease of maintenance of the device.

[0032] Optionally, each receiving groove 10 has multiple limiting members 3, which are evenly distributed along the circumferential direction of the receiving groove 10. When multiple limiting members 3 simultaneously contact the tire blank surface, uniform force can be achieved, preventing the device from tilting or being overloaded due to force on one side, ensuring symmetrical clamping force on both sides and vertical puncture action, and improving puncture consistency and tire blank positioning accuracy.

[0033] Preferably, there are two limiting members 3, which are symmetrically arranged.

[0034] In the second embodiment of the tire blank puncture device provided by this utility model, the tire blank puncture device further includes: a limiting member 3, which is disposed on the annular support plate 21 and protrudes from the annular support plate 21. The limiting member 3 extends along the axial direction of the annular frame 1 and is spaced apart from the puncture needle 22. The limiting member 3 is used to contact the tire blank 100 to limit the puncture depth of the puncture needle 22 into the tire blank 100. Each receiving groove 10 has at least one limiting member 3.

[0035] Optionally, the limiting member 3 and the annular support plate 21 are detachably connected by threads, snaps or fasteners; the limiting member 3 itself is a telescopic structure (such as a sleeve type, spring piston rod or threaded adjustment mechanism), which has telescopic capability along the axial direction of the annular frame 1, so that its extension length in the receiving groove 10 can be adjusted according to actual needs, and can flexibly adapt to the process requirements of different puncture depths.

[0036] Alternatively, the limiting component 3 and the annular support plate 21 can be detachably connected by threads, snaps, or fasteners; by replacing the limiting component 3 with different lengths, it can flexibly adapt to the process requirements of different puncture depths, thereby improving the versatility and ease of maintenance of the device.

[0037] Optionally, each receiving slot 10 has multiple limiting members 3, which are evenly distributed along the circumferential direction of the annular support plate 21. When multiple limiting members 3 simultaneously contact the tire blank surface, uniform force can be achieved, preventing the device from tilting or being overloaded due to force on one side, ensuring symmetrical clamping force on both sides and vertical puncture action, and improving puncture consistency and tire blank positioning accuracy.

[0038] Preferably, there are two limiting members 3, which are symmetrically arranged.

[0039] Furthermore, the length of the limiting member 3 within the receiving groove 10 is less than the length of the puncture needle 22.

[0040] Specifically, such as Figure 1 As shown, the tire blank puncture device further includes: at least two drive cylinders 4, the piston rod 41 of one of the drive cylinders 4 is drivenly connected to one of the two annular frames 1, and the piston rod 41 of the other drive cylinder 4 is drivenly connected to the other annular frame 1; the piston rod 41 of each drive cylinder 4 is telescopically arranged along the axial direction of the tire blank 100 so that the telescopic movement of each piston rod 41 drives the corresponding annular frame 1 to move, thereby causing the two annular frames 1 to move away from or towards each other.

[0041] With the above-mentioned structural configuration, the driving cylinder 4 can drive the corresponding ring frame 1 to approach or move away from the tire blank 100. The pneumatic drive has the characteristics of fast response and rapid action, which can significantly shorten the feeding time of the ring frame 1 and realize the efficient cycle of "rapid clamping → puncture → reset". This significantly improves the cycle time of a single puncture operation and meets the rhythm requirements of high-speed automated production lines.

[0042] Optionally, each ring frame 1 is equipped with two drive cylinders 4 to provide driving force; the two drive cylinders 4 are arranged symmetrically along the radial direction of the ring frame 1 to ensure that the force is balanced and the operation is smooth during axial movement, and to avoid uneven loading or jamming.

[0043] Specifically, the tire carcass puncture device also includes a control unit, which is communicatively connected to each drive cylinder 4 to control the synchronous start or stop of each drive cylinder 4. With this structural arrangement, the control unit sends start / stop signals uniformly, ensuring that each drive cylinder 4 equipped with each ring frame 1 responds and performs extension / retraction actions at the same time. This effectively avoids problems such as ring frame misalignment, uneven force on the tire carcass, or unilateral insertion of the puncture needle caused by asynchronous cylinder actions, ensuring a smooth and accurate puncture process and improving the consistency of puncture quality.

[0044] Optionally, the tire blank puncture device further includes a pressure sensor, which is disposed at the end of each limiting member 3 facing the tire blank 100 (i.e., the end away from the receiving groove 10). When the limiting member 3 contacts the surface of the tire blank 100 and is subjected to pressure as the drive cylinder continues to extend, and reaches a preset pressure value, the pressure sensor generates and sends a feedback signal to the control unit; after receiving the signal, the control unit controls each drive cylinder 4 to stop the extension of the piston rod, so that the piston rod of each drive cylinder 4 retracts under the action of an internal spring or other reset mechanism, completing the puncture reset action.

[0045] Specifically, the tire blank puncture device also includes: a position detection component, which is communicatively connected to the control component. The position detection component is used to detect whether the tire blank 100 to be punctured has reached the preset position and transmits the detection result to the control component. The control component selects whether to control each drive cylinder 4 to start synchronously based on the result of the position detection component.

[0046] With the above-described structure, a position detection component can monitor in real time whether the tire blank 100 has reached the preset puncture position and feed the detection result back to the control unit. The control unit only allows the drive cylinder 4 to start after confirming that the tire blank 100 is in position, effectively preventing accidents such as accidental clamping or puncture when the tire blank 100 is not in position, is offset, or is missing, significantly improving the safety and reliability of equipment operation. At the same time, the puncture device will only activate when the tire blank 100 is precisely in the preset position, ensuring that each puncture is applied to the target area such as the tire sidewall and tire shoulder, avoiding puncture position deviation, damage to the tire bead, or missed puncture of air bubble areas due to tire blank 100 offset, thus improving the positioning accuracy and thoroughness of puncture. In addition, this detection-feedback-control closed-loop system realizes a fully automated process of "automatic puncture upon reaching the position," requiring no manual confirmation or manual start-up, reducing human intervention, lowering labor intensity, and improving the automation level and continuous operation capability of the production line.

[0047] Optionally, the position detection element is a proximity switch.

[0048] Specifically, such as Figure 3 As shown, the tire blank puncture device also includes: an air supply line 5 and a solenoid valve 6. The air supply line 5 is connected to each drive cylinder 4 to supply compressed gas to each drive cylinder 4. The solenoid valve 6 is disposed on the air supply line 5 and is used to control the opening and closing of the air supply line 5. The solenoid valve 6 is electrically connected to a control component, which is used to control the opening and closing of the solenoid valve 6.

[0049] With the above-described structure, the solenoid valve 6, acting as a "switching element" of the pneumatic system, is located on the air supply line 5. Driven by a control signal, it can quickly open or close the air supply, thereby precisely controlling the start and stop timing of the drive cylinder 4. This ensures accurate timing of clamping and piercing actions and improves the consistency of the work cycle. Simultaneously, the solenoid valve 6 is electrically connected to the control unit, which automatically controls the opening and closing of the solenoid valve 6 based on signals from the position detection unit, thus forming an interlocking mechanism. This interlocking mechanism effectively prevents misoperation, eliminates the risk of no-load operation or collisions, and significantly improves the safety of equipment operation.

[0050] Specifically, such as Figure 3As shown, the tire blank puncture device also includes a gas regulating valve 7, which is installed on the air supply line 5 and located between the solenoid valve 6 and each drive cylinder 4. The gas regulating valve 7 is used to regulate the flow rate of compressed gas supplied to each drive cylinder 4. With this structural arrangement, by setting the gas regulating valve 7, the air passage cross-sectional area can be adjusted to control the gas flow rate entering the drive cylinder 4, thereby effectively regulating the extension force of the piston rod 41. This allows for flexible setting of the clamping speed according to the structural characteristics of different tire blanks (such as sidewall thickness and elastic modulus), avoiding impact damage due to excessively fast action or affecting the production cycle due to excessively slow action. At the same time, during the puncture operation, if the ring frame 1 suddenly clamps the tire blank 100 at high speed, it can easily cause local deformation, displacement, or even structural damage to the tire body. By adjusting the air intake flow rate through the gas regulating valve 7, smooth clamping can be achieved, allowing the clamping force to be applied gradually, ensuring that the tire blank is subjected to gentle force and accurate positioning, and improving the consistency of puncture quality.

[0051] Optionally, the gas regulating valve 7 is a throttle valve.

[0052] Furthermore, the air supply line 5 includes a main line and at least two branch lines. The main line is connected to an external air source and at least two branch lines respectively. The at least two branch lines are configured to correspond one-to-one with at least two drive cylinders 4. The end of each branch line away from the main line is connected to the corresponding drive cylinder 4.

[0053] Furthermore, both the solenoid valve 6 and the gas regulating valve 7 are installed on the main line of the gas supply line 5, and the gas regulating valve 7 is located on the output side of the solenoid valve 6, which is used to uniformly regulate the total airflow entering each drive cylinder 4.

[0054] Alternatively, the solenoid valve 6 is installed on the main line, and each branch line is equipped with a gas regulating valve 7, which is used to independently regulate the gas supply flow of the corresponding drive cylinder 4.

[0055] Specifically, the tire blank puncture device further includes: two support plates and at least two guide rods. The two support plates are arranged one-to-one with the two annular frames 1. Each support plate is fixedly arranged and located on the side of the corresponding annular frame 1 away from the other annular frame 1 (i.e., each support plate is located on the side of the corresponding annular frame 1 away from the tire blank 100). The fixed end of each drive cylinder 4 is fixed on the corresponding support plate, and the free end of the piston rod 41 of each drive cylinder 4 passes through the corresponding support plate and is connected to the corresponding annular frame 1. At least two guide rods extend along the extension and retraction direction of the piston rod 41. One of the at least two guide rods is movably inserted through one of the two support plates along the extension and retraction direction of the piston rod 41, and one of the at least two guide rods is connected to the annular frame 1 corresponding to one of the two support plates. The other guide rod is movably inserted through the other of the two support plates along the extension and retraction direction of the piston rod 41, and the other guide rod is connected to the annular frame 1 corresponding to the other of the two support plates.

[0056] With the above-described structure, the guide rod is movably mounted on the corresponding support plate along the extension and retraction direction of the piston rod 41, thus forming a composite motion mechanism of "cylinder drive + guide rod guidance". The guide rod constrains the annular frame 1 to move only along the extension and retraction direction of the piston rod (i.e., the tire blank axis), effectively preventing it from radially shifting, tilting or rotating during clamping, ensuring that the puncture needle pierces the tire sidewall vertically, and improving puncture consistency and positioning accuracy.

[0057] Furthermore, each annular frame 1 is equipped with at least one drive cylinder 4, the body of the at least one drive cylinder 4 is mounted on a support plate opposite to the annular frame 1, and the piston rod 41 of the drive cylinder 4 is telescopically inserted through the corresponding support plate.

[0058] Optionally, each annular frame 1 is equipped with two drive cylinders 4 and two guide rods. The two guide rods are arranged symmetrically along the radial direction of the annular frame 1. The two guide rods are arranged in a one-to-one correspondence with the two drive cylinders 4. The two guide rods and the two drive cylinders 4 are spaced apart along the radial direction of the annular frame 1. The two guide rods are located between the two drive cylinders 4.

[0059] This utility model provides a molding device, including: a tire blank piercing device, wherein the tire blank piercing device is the tire blank piercing device described in the above embodiment.

[0060] Specifically, the forming equipment also includes a transfer ring that moves along a preset direction to clamp the preform 100. The moving direction of the transfer ring is perpendicular to the moving direction of the ring frame 1. The central symmetry line of the transfer ring is the same as the moving direction of the ring frame 1. The transfer ring is used to clamp the preform 100 to be punctured and move it to a preset position (i.e., a preset puncture station).

[0061] Optionally, the puncture process of the tire blank puncture device is as follows: The tire blank 100 is held and transported to the preset puncture position of the device by the transfer ring, after which the transfer ring stops moving. At this time, the position detection component detects in real time whether the tire blank 100 is accurately in place and feeds back the detection result to the control component.

[0062] When the control unit receives the "carcass in position" signal from the position detection unit, it determines that the carcass 100 is in the preset puncture position and then issues a control command: First, control the solenoid valve 6 to open, thus connecting the air supply line 5; At the same time, the opening degree of each gas regulating valve 7 is adjusted according to the preset process parameters to precisely control the flow rate of compressed gas delivered to each drive cylinder 4.

[0063] Subsequently, each drive cylinder 4 starts synchronously, and each piston rod 41 extends outward, driving the two annular frames 1 to approach each other along the axial direction of the tire blank 100, gradually clamping the tire blank 100. During the clamping process, the two sides of the tire blank 100 are gradually inserted into the receiving grooves 10 on the corresponding annular frames 1 until they are stably clamped.

[0064] As the clamping stroke continues to advance, the puncture needles 22 on the annular puncture member 2 located on the bottom wall of the receiving groove 10 puncture into the sidewall or shoulder area on both sides of the tire blank 100 in sequence, completing the air puncture operation.

[0065] When the limiting members 3 on both annular frames 1 are in contact with the surface of the tire blank and reach the set operating state (such as contact in place or pressure reaching the standard), the control unit controls the solenoid valve 6 to close, cutting off the air supply. At this time, each drive cylinder 4 automatically retracts its piston rod under the action of the internal spring or other reset mechanism, driving the two annular frames 1 to move away from each other and return to the initial standby position, completing one complete puncture cycle.

[0066] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0067] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0068] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0069] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0070] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A tire blank puncture device, characterized in that, include: Two annular frames (1) are arranged opposite each other along the axial direction of the embryo (100); the two annular frames (1) are either far apart or close to each other along the axial direction of the embryo (100); each annular frame (1) is provided with a receiving groove (10), and each receiving groove (10) is located on the side of the corresponding annular frame (1) that is close to the embryo (100); the inner diameter of each receiving groove (10) is larger than the diameter of the embryo (100); Two annular puncture elements (2) are provided in a one-to-one correspondence with two annular frames (1), and each annular puncture element (2) is provided in the corresponding receiving groove (10); each annular puncture element (2) has a puncture part, and the puncture part of each annular puncture element (2) is used to puncture the embryo (100); During the puncture operation on the embryo (100), the two annular frames (1) move closer to each other along the axial direction of the embryo (100) to clamp the embryo (100) so that the puncture parts of the two annular puncture members (2) puncture the two sides of the embryo (100) respectively.

2. The tire blank puncture device according to claim 1, characterized in that, The annular puncture element (2) includes: An annular support plate (21) is disposed on the receiving groove (10); Multiple rows of puncture needles (22) are arranged on the annular support plate (21), and the multiple rows of puncture needles (22) are spaced apart along the radial direction of the annular support plate (21); each row of puncture needles (22) has multiple puncture needles (22), and the multiple puncture needles (22) are spaced apart along the circumferential direction of the annular support plate (21); The puncture needles (22) are arranged in multiple rows to form the puncture portion of the annular puncture member (2).

3. The tire blank puncture device according to claim 1, characterized in that, The tire blank puncture device further includes: a limiting member (3), at least a portion of which is disposed within the receiving groove (10) and at least a portion of which protrudes from the bottom wall of the receiving groove (10); the limiting member (3) extends along the axial direction of the annular frame (1), and the limiting member (3) is spaced apart from the annular puncture member (2); the limiting member (3) is used to contact the tire blank (100) to limit the puncture depth of the puncture part on the tire blank (100); Each of the receiving slots (10) has at least one of the limiting members (3).

4. The tire blank puncture device according to claim 1, characterized in that, The tire blank puncture device further includes: at least two drive cylinders (4), the piston rod (41) of one of the drive cylinders (4) is driven to be connected to one of the two annular frames (1), and the piston rod (41) of the other drive cylinder (4) is driven to be connected to the other annular frame (1) of the two annular frames (1); the piston rod (41) of each drive cylinder (4) is telescopically arranged along the axial direction of the tire blank (100) so that the corresponding annular frame (1) can be moved by the extension and retraction of each piston rod (41).

5. The tire blank puncture device according to claim 4, characterized in that, The tire blank puncture device further includes a control unit, which is communicatively connected to each of the drive cylinders (4) to control each of the drive cylinders (4) to start or stop synchronously.

6. The tire blank puncture device according to claim 5, characterized in that, The tire blank puncture device further includes: a position detection component, which is communicatively connected to the control component. The position detection component is used to detect whether the tire blank (100) to be punctured has reached a preset position and transmits the detection result to the control component. The control component selects whether to control each of the drive cylinders (4) to start synchronously based on the result of the position detection component.

7. The tire blank puncture device according to claim 6, characterized in that, The tire blank puncture device also includes: An air supply line (5) is connected to each of the drive cylinders (4) for supplying compressed gas to each of the drive cylinders (4); Solenoid valve (6) is disposed on the gas supply line (5). The solenoid valve (6) is used to control the opening and closing of the gas supply line (5). The solenoid valve (6) is electrically connected to the control component, which is used to control the opening and closing of the solenoid valve (6).

8. The tire blank puncture device according to claim 7, characterized in that, The tire blank puncture device further includes a gas regulating valve (7), which is disposed on the air supply line (5) and located between the solenoid valve (6) and each of the drive cylinders (4). The gas regulating valve (7) is used to regulate the flow rate of compressed gas supplied to each of the drive cylinders (4).

9. The tire blank puncture device according to claim 4, characterized in that, The tire blank puncture device also includes: Two support plates are provided, and the two support plates are provided in a one-to-one correspondence with the two annular frames (1). Each support plate is fixedly provided, and each support plate is located on the side of the corresponding annular frame (1) away from the other annular frame (1). The fixed end of each driving cylinder (4) is fixed on the corresponding support plate, and the free end of the piston rod (41) of each driving cylinder (4) passes through the corresponding support plate and is connected to the corresponding annular frame (1). At least two guide rods, both of which extend along the extension and retraction direction of the piston rod (41), one of the guide rods being movably inserted through one of the support plates along the extension and retraction direction of the piston rod (41), and the guide rod being connected to the annular frame (1) corresponding to the support plate; the other guide rod being movably inserted through the other support plate along the extension and retraction direction of the piston rod (41), and the other guide rod being connected to the annular frame (1) corresponding to the other support plate.

10. A molding device, characterized in that, include: A tire carcass puncture device, wherein the tire carcass puncture device is the tire carcass puncture device according to any one of claims 1 to 9.

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