Solid tire production system
By introducing a robot and automatic cutter system into the solid tire production system, the problem of manual assisted adjustment is solved, the automation and efficient production of solid tires is achieved, and product quality is improved.
Patent Information
- Application Number
- CN202411894675.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2044-12-20
AI Technical Summary
In the existing solid tire production process, operations such as film width adjustment, rubber tapping, forming drum position adjustment, and tire blank loading and unloading require manual assistance, resulting in a low degree of automation, high labor intensity, low production efficiency, and large product quality deviation.
A solid tire production system including an open mill, a building drum and an actuator is used. Automatic film winding is achieved through a manipulator or a truss manipulator. The distance between the tire blank and the building roller is adjusted by the building drum and the actuator. Combined with an automatic fixed-length and fixed-width cutter system, automatic film winding and cutting are achieved.
The automation of the solid tire production process is realized, labor intensity is reduced, production efficiency and product quality are improved, and the stability and precision of the winding process are ensured.
Smart Images
Figure CN119590012B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of tire production, and in particular to a solid tire production system. Background Art
[0002] The solid tire production process involves wrapping various thin sheets of rubber around a rubber sleeve to create a tire blank whose weight and dimensions meet process requirements. The thin sheets are primarily produced by an open mixing mill, which conveys them via rollers to a forming station where they are wound onto a forming drum to produce the tire blank. Sheet thickness can be determined by adjusting the pitch of the forming rollers on the mixing mill. However, in related technologies, sheet width adjustment, rubber tapping, forming drum position adjustment, measuring the sheet winding diameter on the drum, and loading and unloading the tire blank all require manual assistance. This results in a low degree of automation, high labor intensity, and low production efficiency in the solid tire production process. Furthermore, the quality of mass-produced tires can vary significantly, significantly impacting subsequent processes. Summary of the Invention
[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.
[0004] To this end, an embodiment of the present invention provides a solid tire production system, which can automate the solid tire production process, reduce labor intensity, and improve production efficiency and product quality.
[0005] According to an embodiment of the present invention, a solid tire production system includes an open mill, a forming drum and an actuator. The open mill is pivotally provided with a first forming roller and a second forming roller. The direction of the pivot axis of each of the first forming roller and the second forming roller is consistent with the first direction and the rotation directions of the two are opposite. The first forming roller and the second forming roller are arranged at intervals along the second direction and a glue passing channel is defined therebetween. The second direction forms an angle with the first direction. The glue passing channel is suitable for calendering the rubber into a film for output, and the film can be wrapped around the outer peripheral wall of the first forming roller; the forming drum is pivotally connected to the actuator and is suitable for sleeved tire blanks. The direction of the pivot axis of the forming drum is consistent with the first direction. The actuator can move the forming drum to adjust the distance between the tire blank and the outer peripheral wall of the first forming roller so that the film is transferred and wound around the tire blank.
[0006] According to the solid tire production system of an embodiment of the present invention, the rubber material can be rolled into a film of a certain thickness by the glue passing channel on the open mill, and output through the first forming roller rotating on the open mill, and the actuator can move the forming drum with the tire blank connected to the outer peripheral wall adjacent to the first forming roller. At the same time, the forming drum rotates relative to the first forming roller on the actuator, so that the film on the first forming roller can be gradually transferred and wound on the tire blank. As the winding progresses, the diameter of the tire blank gradually increases, and the actuator can drive the forming drum to follow and retreat so as to adjust the position of the forming drum relative to the first forming roller, so that the winding process does not require manual measurement of the winding diameter of the solid tire, thereby ensuring the stability of the winding molding. Therefore, compared with related technologies, the present invention can realize the automation of the solid tire production process, reduce labor intensity, and improve production efficiency and product quality.
[0007] In some embodiments, the forming drum has a waiting position and a winding position, and the tire blank is separated from the first forming roller at the waiting position. When the forming drum switches from the waiting position to the winding position, the tire blank is pressed against the outer wall of the first forming roller and rotates with the first forming roller under the action of the friction between the two, so that the film is wound on the tire blank.
[0008] In some embodiments, the actuator is provided with a rotation-stopping device, which can lock the forming drum and the actuator when the forming drum is located in the waiting position to prevent the forming drum from rotating.
[0009] In some embodiments, the solid tire production system also includes a clamping assembly, and the actuator is pivotally connected to the forming drum through the clamping assembly. The clamping assembly pushes and pulls the forming drum to extend or retract relative to the actuator to adjust the clamping force of the tire blank on the first forming roller.
[0010] In some embodiments, the clamping assembly includes a clamping cylinder and a mounting seat, the cylinder body of the clamping cylinder is connected to the actuator, the piston rod of the clamping cylinder is connected to the mounting seat, and the forming drum is pivotally mounted on the mounting seat.
[0011] In some embodiments, the clamping assembly further includes a guide rail, the guide rail is connected to the actuator, and the guide rail is slidably connected to the mounting seat.
[0012] In some embodiments, the solid tire production system also includes a base, a first telescopic member and a first cutter. The base is arranged adjacent to the first forming roller and is connected to the body of the first telescopic member. The telescopic part of the first telescopic member is connected to the first cutter. The first telescopic member pushes and pulls the first cutter to extend or retract relative to the base so that the first cutter can cut the film at a fixed length.
[0013] In some embodiments, the solid tire production system further includes a first roller, the first roller being pivotally mounted on the telescopic portion of the first telescopic member and having a first state in which the first roller is pressed against the outer peripheral wall of the first forming roller and a second state in which the first roller is spaced apart from the outer peripheral wall of the first forming roller. When the first roller is in the first state, the first roller can rotate with the first forming roller under the action of friction.
[0014] The first cutter is connected to the first roller and protrudes from the outer peripheral wall of the first roller. When the first roller switches from the first state to the second state, the first cutter can make linear contact with the outer peripheral wall of the first forming roller to cut the film.
[0015] In some embodiments, the first roller further has a zero position. When the first roller is in the second state, the first cutter can rotate to the zero position with the first roller, and the first roller is stationary relative to the telescopic portion of the first telescopic member at the zero position.
[0016] In some embodiments, the solid tire production system further includes a limiting cylinder, a blocking shaft, and a limiting block, wherein the cylinder body of the limiting cylinder is mounted on the telescopic portion of the first telescopic member, the piston rod of the limiting cylinder is connected to the blocking shaft so as to pull the blocking shaft to extend or retract relative to the cylinder body of the limiting cylinder, and the limiting block is mounted on the first roller;
[0017] When the first roller is in the first state, the blocking shaft is spaced apart from the limiting block, and the limiting block can be adsorbed on the blocking shaft at the zero point position.
[0018] In some embodiments, the solid tire production system also includes a second telescopic member and a second cutter, the body of the second telescopic member is connected to the base, the telescopic part of the second telescopic member is pivotally connected to the second cutter, the second telescopic member pushes and pulls the second cutter to extend or retract relative to the base, the direction of the pivot axis of the second cutter and the width direction of the film are consistent with the first direction, there are two second cutters and they are arranged along the first direction, so that the film can be cut at a fixed width by the two second cutters.
[0019] In some embodiments, at least one of the two second cutters is movably connected to the base along the first direction so as to adjust the distance between the two second cutters.
[0020] In some embodiments, the solid tire production system also includes a tire blank storage table, which is arranged next to the mixing mill and is suitable for temporarily storing at least one of the tire blanks and the finished tires. The actuator is connected to the tire blank storage table and can grab the tire blank or unload the finished tire on the tire blank storage table.
[0021] In some embodiments, an encoder is further provided on the first forming roller so that the encoder can measure the length of the film on the first forming roller.
[0022] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 Schematic diagram of a solid tire production system according to an embodiment of the present invention.
[0024] Figure 2 2 is another structural schematic diagram of a solid tire production system according to an embodiment of the present invention.
[0025] Figure 3 Schematic diagram of the connection structure between the actuator, the pressing assembly and the building drum in the solid tire production system according to an embodiment of the present invention.
[0026] Figure 4 2 is a schematic diagram of the connection structure among a base, a first cutter, a first roller, a second telescopic member and a second cutter in a solid tire production system according to an embodiment of the present invention.
[0027] Figure numerals: 1. open mill, 11. first forming roller, 12. second forming roller, 2. forming drum, 21. tire blank, 3. actuator, 4. clamping assembly, 41. clamping cylinder, 42. mounting seat, 43. guide rail, 5. base, 6. first cutter, 7. first roller, 71. limiting cylinder, 8. second telescopic member, 9. second cutter, 91. tire blank storage table. DETAILED DESCRIPTION
[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.
[0029] like Figure 1 and Figure 2As shown, a solid tire production system of an embodiment of the present invention includes an open mill 1, a forming drum 2 and an actuator 3. A first forming roller 11 and a second forming roller 12 are pivotally provided on the open mill 1. The direction of the pivot axis of each of the first forming roller 11 and the second forming roller 12 is consistent with the first direction and the rotation directions of the two are opposite. The first forming roller 11 and the second forming roller 12 are arranged at intervals along the second direction and a glue passing channel is defined therebetween. The second direction forms an angle with the first direction. The glue passing channel is suitable for calendering the rubber into a film for output, and the film can be covered on the outer peripheral wall of the first forming roller 11; the forming drum 2 is pivotally connected to the actuator 3 and is suitable for sleeved tire blank 21. The direction of the pivot axis of the forming drum 2 is consistent with the first direction. The actuator 3 can move the forming drum 2 to adjust the distance between the tire blank 21 and the outer peripheral wall of the first forming roller 11 so that the film is transferred and wound around the tire blank 21.
[0030] It can be understood that according to the solid tire production system of the embodiment of the present invention, the rubber material can be rolled into a film of a certain thickness by the glue passing channel on the open mill 1, and output through the first forming roller 11 rotating on the open mill 1, and the actuator 3 can move the forming drum 2 with the tire blank 21 mounted thereon to the outer peripheral wall adjacent to the first forming roller 11, and at the same time, the forming drum 2 rotates relative to the first forming roller 11 on the actuator 3, so that the film on the first forming roller 11 can be gradually transferred and wound on the tire blank 21, and as the winding proceeds, the diameter of the tire blank 21 gradually increases, and the actuator 3 can drive the forming drum 2 to follow and retreat, so as to adjust the position of the forming drum 2 relative to the first forming roller 11, so that the winding process does not require manual measurement of the winding diameter of the solid tire, thereby ensuring the stability of the winding molding. Therefore, compared with related technologies, the present invention can realize the automation of the solid tire production process, reduce labor intensity, and improve production efficiency and product quality.
[0031] Specifically, an encoder is provided on the first forming roller 11 to measure the length of the film on the first forming roller 11. Both the first forming roller 11 and the second forming roller 12 can extend in a first direction. The spacing between the first forming roller 11 and the second forming roller 12 in a second direction is adjustable to change the width of the glue passageway and enable the output of films of varying thicknesses. The actuator 3 can be either a robot (e.g., a six-axis articulated robot) or a truss manipulator (either a single-axis truss or a multi-axis truss). When the actuator 3 is a robot, it is not limited to being pivotally mounted to the side of the mixing mill 1. The manipulator arm of the actuator 3 can be extended and retracted relative to the first forming roller 11 to adjust the spacing between the tire blank 21 grasped by the manipulator and the outer wall of the first forming roller 11. When the actuator 3 is a truss manipulator, the truss can be mounted to the side of the mixing mill 1, and the manipulator slides on the truss to adjust the spacing between the tire blank 21 grasped by the manipulator and the outer wall of the first forming roller 11. Preferably, the actuator 3 is capable of moving the building drum 2 parallel to the first building roller 11 of the mixing mill 1, for example, with the building drum 2 and the first building roller 11 aligned along the second direction. The building drum 2 has an expansion and contraction function. After contraction, it can extend into the inner hole of the tire blank 21 and then expand to clamp the tire blank 21, ensuring a secure fit of the tire blank 21 on the building drum 2. The specific structures of the mixing mill 1 and the building drum 2 can adopt existing technologies in the art and are not specifically limited by this invention. Furthermore, using the example shown in the figure, the first and second directions can be perpendicular.
[0032] like Figures 1 to 3 As shown, in some embodiments, the forming drum 2 has a waiting position and a winding position. The tire blank 21 is separated from the first forming roller 11 in the waiting position. When the forming drum 2 switches from the waiting position to the winding position, the tire blank 21 is pressed against the outer peripheral wall of the first forming roller 11 and rotates with the first forming roller 11 under the action of the friction between the two, that is, the tire blank 21 can passively rotate when in contact with the outer peripheral wall of the first forming roller 11, and as the diameter of the tire blank 21 increases, the rotation speed of the tire blank 21 gradually decreases so that the film is wound on the tire blank 21.
[0033] It can be understood that by utilizing the contact between the outer peripheral wall of the tire blank 21 on the forming drum 2 and the outer peripheral wall of the first forming roller 11, the tire blank 21 can follow the first forming roller 11, thereby eliminating the need to provide an additional rotation drive for the forming drum 2, reducing design difficulty and cost, and ensuring the rotational synchronization between the tire blank 21 and the first forming roller 11, so that the film can be smoothly transferred from the first forming roller 11 to the tire blank 21.
[0034] Specifically, the rotation direction of the forming drum 2 is opposite to the rotation direction of the first forming roller 11. The tire blank 21 is parallel to the first forming roller 11 in the winding position, for example, the tire blank 21 and the first forming roller 11 are arranged along the second direction.
[0035] In some embodiments, the actuator 3 is provided with a rotation-stopping device (not shown in the figure). The rotation-stopping device can lock the building drum 2 and the actuator 3 when the building drum 2 is in the waiting position. That is, the rotation-stopping device can lock the building drum 2 to the actuator 3 when the building drum 2 is in the waiting position to prevent the building drum 2 from rotating, thereby ensuring the fit between the film head and the tire blank 21 (that is, the film head can just reach the position where the tire blank 21 contacts the first forming roller 11). The rotation-stopping device may not be limited to a brake and a holding brake. The specific structure of the rotation-stopping device can adopt existing technologies in the field and will not be described in detail here.
[0036] like Figure 3 As shown, in some embodiments, the solid tire production system also includes a clamping assembly 4, and the actuator 3 is pivotally connected to the forming drum 2 through the clamping assembly 4. The clamping assembly 4 pushes and pulls the forming drum 2 to extend or retract relative to the actuator 3 to adjust the clamping force of the tire blank 21 on the first forming roller 11, so that the film can be tightly wound on the tire blank 21, ensuring the stability of the winding molding of the tire blank 21 and improving the molding quality of the tire blank 21.
[0037] like Figure 3 As shown, in some embodiments, the clamping assembly 4 includes a clamping cylinder 41 and a mounting seat 42, the cylinder body of the clamping cylinder 41 is connected to the actuator 3, the piston rod of the clamping cylinder 41 is connected to the mounting seat 42, and the forming drum 2 is pivotally mounted on the mounting seat 42.
[0038] like Figure 3 As shown, in some embodiments, the pressing assembly 4 further includes a guide rail 43 , which is connected to the actuator 3 , and the guide rail 43 is slidably connected to the mounting seat 42 .
[0039] It can be understood that the clamping cylinder 41 can drive the forming drum 2 on the mounting seat 42 to extend and retract relative to the actuator 3, and the guide rail 43 can ensure the stability of the adjustment process to achieve reliable adjustment of the clamping force between the tire blank 21 and the first forming roller 11, further improving the automation performance of the solid tire production system.
[0040] Specifically, the cylinder body of the pressing cylinder 41 can be fixed to the manipulator of the actuator 3 via a mounting plate. There can be two guide rails 43 that are spaced apart and arranged on the mounting plate. The mounting seat 42 is slidably connected to the guide rails 43 along the extending direction of the guide rails 43.
[0041] like Figure 4 As shown, in some embodiments, the solid tire production system also includes a base 5, a first telescopic member (not shown in the figure) and a first cutter 6. The base 5 is arranged adjacent to the first forming roller 11 and is connected to the main body of the first telescopic member. The telescopic part of the first telescopic member is connected to the first cutter 6. The first telescopic member pushes and pulls the first cutter 6 to extend or retract relative to the base 5 so that the first cutter 6 can cut the film at a fixed length.
[0042] It is understandable that the first telescopic member and the first cutter 6 cooperate to form a cross-cutting knife structure, so that the first telescopic member drives the first cutter 6 to approach or move away from the film on the first forming roller 11 to achieve fixed-length cutting of the film.
[0043] Specifically, the first cutter 6 can be a long blade. The first cutter 6 can extend along the first direction and its length is not less than the width of the film, wherein the width direction of the film can be consistent with the first direction.
[0044] like Figure 4 As shown, in some embodiments, the solid tire production system also includes a first roller 7, which is pivotally mounted on the telescopic portion of the first telescopic member and has a first state in which it is pressed against the outer peripheral wall of the first forming roller 11 and a second state in which it is spaced apart from the outer peripheral wall of the first forming roller 11. When the first roller 7 is in the first state, it can rotate with the first forming roller 11 under the action of friction force, that is, the first roller 7 can passively rotate when it contacts the outer peripheral wall of the first forming roller 11.
[0045] The first cutter 6 is connected to the first roller 7 and protrudes from the outer peripheral wall of the first roller 7. When the first roller 7 switches from the first state to the second state, the first cutter 6 can make linear contact with the outer peripheral wall of the first forming roller 11 to cut the film.
[0046] It can be understood that the first cutter 6 is installed on the first roller 7 to form a roller-cutter structure. When the first telescopic member pushes the first roller 7 to rise and press against the outer peripheral wall of the first forming roller 11, under the action of the friction between the two, the first forming roller 11 will drive the first roller 7 to move, and the first cutter 6 rotates with the first roller 7. When the first cutter 6 turns to contact with the first forming roller 11, the first roller 7 will be pressed down to ensure that the first cutter 6 turns past the contact position. At the same time, the film is cut, and the first roller 7 is pulled down by the first telescopic member to be separated from the first forming roller 11.
[0047] Specifically, the roller-cutter structure can be located below the first forming roller 11. The first roller 7 can extend along the first direction. The first telescopic member needs to have a certain elasticity to ensure that the first cutter 6 can smoothly rotate to the contact position between the first cutter 6 and the first forming roller 11.
[0048] like Figure 4As shown, in some embodiments, the first roller 7 further has a zero position. When the first roller 7 is in the second state, the first cutter 6 can rotate with the first roller 7 to the zero position. At the zero position, the first roller 7 is stationary relative to the telescopic portion of the first telescopic member. By returning the first cutter 6 to zero, the first cutter 6 is stopped at a fixed position in the circumferential direction of the first roller 7, ensuring the accuracy of the subsequent film cutting start. The first cutter 6 can be returned to zero, for example, by using an encoder to measure the film length and calculate the angle through which the first roller 7 has rotated. The first cutter 6 can then be returned to zero by controlling the first roller 7 to rotate the corresponding angle.
[0049] It should be noted that the zero point position may be a set arc length interval range in the circumferential direction of the first roller 7 , so as to reduce the difficulty requirement for returning the first cutter 6 to zero.
[0050] like Figure 4 As shown, in some embodiments, the solid tire production system also includes a limit cylinder 71, a blocking shaft and a limit block (not shown in the figure), the cylinder body of the limit cylinder 71 is installed on the telescopic part of the first telescopic member, and the piston rod of the limit cylinder 71 is connected to the blocking shaft so as to pull the blocking shaft to extend or retract relative to the cylinder body of the limit cylinder 71, and the limit block is installed on the first roller 7.
[0051] When the first roller 7 is in the first state, the blocking shaft and the limiting block are spaced apart, and the limiting block can be adsorbed on the blocking shaft at the zero point position.
[0052] It can be understood that a limiting assembly is formed by the cooperation of the limiting cylinder 71, the blocking shaft and the limiting block. The limiting cylinder 71 can control the protruding length of the blocking shaft relative to the cylinder body of the limiting cylinder 71 to ensure that when the roller cutter structure is in the first state, the blocking shaft and the limiting block are spaced apart and do not affect the normal rotation of the roller cutter structure. When the roller cutter structure needs to return to zero, the blocking shaft can contact and be adsorbed with the limiting block to reliably limit the roller cutter structure to the zero position, that is, the first cutter 6 stops at a fixed position in the circumferential direction of the first roller 7.
[0053] Specifically, the telescopic portion of the first telescopic member can be pivotally connected to the first roller 7 through the base. The limiting cylinder 71 can be installed on the base. There can be two limiting assemblies and they are arranged at both ends of the first roller 7 along the length direction of the first roller 7 to further improve the limiting reliability of the first roller 7. The blocking shaft is not limited to a magnetic shaft. When the roller-cutter structure falls off the first forming roller 11, the blocking shaft extends, and the roller-cutter structure rotates flexibly. Due to inertia, it can continue to rotate until the limiting block hits the blocking shaft and stops rotating. The limiting block can be adsorbed and fixed due to the magnetic force. Before cutting is required, the blocking shaft retracts to allow the roller-cutter structure to rotate freely. The limiting block can be fixed to the opposite ends of the first roller 7 along its length direction through a limiting ring.
[0054] It should be noted that the blocking shaft is preferably set at a position where the roller cutter structure stops in a free state, so as to ensure that the roller cutter structure will not rotate again due to its own weight after the blocking shaft is retracted.
[0055] like Figure 4 As shown, in some embodiments, the solid tire production system also includes a second telescopic member 8 and a second cutter 9, the main body of the second telescopic member 8 is connected to the base 5, the telescopic part of the second telescopic member 8 is pivotally connected to the second cutter 9, the second telescopic member 8 pushes and pulls the second cutter 9 to extend or retract relative to the base 5, the direction of the pivot axis of the second cutter 9 and the width direction of the film are consistent with the first direction, there are two second cutters 9 and they are arranged along the first direction, so that the film can be cut at a fixed width by the two second cutters 9.
[0056] It can be understood that the second telescopic member 8 and the second cutter 9 constitute a fixed-width cutter structure. When the fixed-width cutter structure is integrated on the base 5, it forms a cutter device together with the cross-cutting knife structure.
[0057] Specifically, the cutter device can be installed below the first forming roller 11, so that the solid tire production system has a compact structure and high integration. The second cutter 9 can be a circular blade.
[0058] like Figure 4 As shown, in some embodiments, at least one of the two second cutters 9 is movably connected to the base 5 along the first direction so as to adjust the distance between the two second cutters 9 to meet the cutting requirements of films of various width specifications.
[0059] Furthermore, in order to improve the automation performance of the solid tire production system, two telescopic cylinders (not shown in the figure) can be installed on the base 5, and the two telescopic cylinders correspond one-to-one to the two second cutters 9, and the piston rods of the telescopic cylinders are connected to the body of the second telescopic member 8 so as to change the distance between the two second cutters 9 along the first direction.
[0060] It should be noted that the pressing cylinder 41, the first telescopic member, the limiting cylinder 71, the second telescopic member 8, and the telescopic cylinder are not limited to being any one of a pneumatic cylinder, a hydraulic cylinder, an oil cylinder, and an electric cylinder. The pressing cylinder 41 may also be a motor (such as a servo motor, a linear motor, etc.) that can provide a certain pressure and automatically adjust its position according to pressure changes.
[0061] like Figure 1 and Figure 2 As shown, in some embodiments, the solid tire production system also includes a tire blank storage table 91, which is arranged next to the mixing mill 1 and is suitable for temporarily storing at least one of the tire blanks 21 and the finished tires. The actuator 3 is connected to the tire blank storage table 91 and can grab the tire blanks 21 or unload the finished tires on the tire blank storage table 91.
[0062] Specifically, the tire blank storage platform 91 may have one station for storing the tire blank 21 or the finished tire; or, the tire blank storage platform 91 may have two stations, one for storing the tire blank 21 and the other for storing the finished tire.
[0063] Therefore, compared with the related art, the present invention has the following technical effects:
[0064] 1. The present invention proposes a method for producing solid tires using a manipulator. The manipulator used can be a six-axis articulated robot or a truss robot. The manipulator, in conjunction with relevant functional components, can realize the following actions during the solid tire production process: automatically grabbing the rubber sleeve, automatically abutting the forming drum 2 against the first forming roller 11 of the mixing mill 1, automatically winding the rubber sheet to a fixed length and width, and automatically unloading the tire blank 21;
[0065] 2. The present invention proposes a production method that can adapt to the increase in the winding diameter of solid tires. In the process of producing solid tires, the forming drum 2 is close to the first forming roller 11 of the open mill 1. As the winding progresses, the diameter of the solid tire gradually increases. The forming drum 2 needs to follow the retreat and maintain a certain pressing force to ensure the stability of the winding molding. Therefore, the guide rail 43 and the pressing cylinder 41 are used to achieve the following retreat of the forming drum 2. The pressing cylinder 41 can push the forming drum 2 forward with a certain pressure.
[0066] 3. The present invention proposes a cutting knife system that can automatically fix the length and width. The second cutter 9 can extend to press the first forming roller 11 of the mixing mill 1 to achieve cutting, and retract to separate from the first forming roller 11. The second cutter 9 can automatically adjust the axial position and have position feedback to achieve precise position adjustment to ensure the accuracy of the film width. The first cutter 6 can be raised and lowered to press or separate from the first forming roller 11 of the mixing mill 1. When cutting, it can follow the rotation of the first forming roller 11 of the mixing mill 1 and cut quickly without stopping the machine.
[0067] Now, combined with the specific structure of the solid tire production system, its working process is explained as follows:
[0068] 1) Placing the tire blank 21 to be wound with film on the tire blank storage table 91;
[0069] 2) starting the open mixing mill 1 to mix the rubber so that the thin rubber sheet is coated on the first forming roller 11;
[0070] 3) The robot (i.e., the actuator 3) clamps the tire blank 21 to be wound and then transfers it to the waiting position. At this time, the building drum 2 is parallel to the first forming roller 11 of the open mixing mill 1. The building drum 2 is pushed forward to the limit position by the pressing cylinder 41. The distance between the tire blank 21 on the building drum 2 and the first forming roller 11 is very small, and it can be pressed against the first forming roller 11 at any time. During the whole process, the building drum 2 is held tightly by the anti-rotation device and cannot rotate;
[0071] 4) The fixed width cutter structure and the cross-cutting knife structure extend to cut the film. At this time, the cut film is still covered on the first forming roller 11 of the mixing mill 1 and rotates with it;
[0072] 5) When the rubber sheet head rotates to approach the tire blank 21 on the forming drum 2, the anti-rotation device opens and the robot judges the distance and presses the tire blank 21 parallel to the first forming roller 11 of the open mill 1. The rubber sheet head just reaches the contact position between the tire blank 21 and the first forming roller 11. The forming drum 2 carries the tire blank 21 and rotates along with the first forming roller 11. At the same time, the cut rubber sheet is transferred to the tire blank 21, completing the start of film winding and starting the automatic length recording.
[0073] 6) The forming drum 2 carries the tire blank 21 and presses it against the first forming roller 11 of the open mill 1, and then rotates passively. The film is continuously wound around the tire blank 21. As the diameter of the tire blank 21 gradually increases, the forming drum 2 moves backward and maintains a certain pressure to press the tire blank 21 against the first forming roller 11 of the open mill 1, ensuring that the film is tightly wound around the tire blank 21 during winding.
[0074] 7) When the wound film length reaches the set value, the first cutter 6 extends to cut the film and retracts to automatically return to zero;
[0075] 8) After the cut tail passes through the second cutter 9, the second cutter 9 retracts and no longer cuts the film;
[0076] 9) When the cut tail of the material passes the contact position between the tire blank 21 and the first forming roller 11, the robot withdraws and separates the tire blank 21 from the first forming roller 11. The anti-rotation device holds the forming drum 2 tightly according to the setting to prevent it from rotating. The robot transfers the finished tire to the tire blank storage table 91, completing the winding molding of the tire blank 21.
[0077] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0078] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0079] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0080] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0081] In the present invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless otherwise inconsistent.
[0082] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A solid tire production system, characterized in that: include: An open mixing mill, wherein a first forming roller and a second forming roller are pivotally provided on the open mixing mill, wherein the direction of the pivot axis of each of the first forming roller and the second forming roller is consistent with the first direction and the rotation directions of the two rollers are opposite, the first forming roller and the second forming roller are spaced apart along the second direction and define a glue passage therebetween, the second direction forms an angle with the first direction, the glue passage is suitable for calendering the rubber material into a film for output, and the film can be coated on the outer peripheral wall of the first forming roller; as well as A forming drum and an actuator, wherein the forming drum and the actuator are pivotally connected and adapted to receive a tire blank, the pivot axis of the forming drum being in the same direction as the first direction, and the actuator being capable of moving the forming drum to adjust the distance between the tire blank and the outer peripheral wall of the first forming roller so that the film is transferred and wound around the tire blank; The forming drum has a waiting position and a winding position. The tire blank is spaced apart from the first forming roller in the waiting position. When the forming drum is switched from the waiting position to the winding position, the tire blank is pressed against the outer peripheral wall of the first forming roller and rotates with the first forming roller under the action of the friction between the two, so that the film is wound around the tire blank. The actuator is provided with a rotation-stopping device, which can lock the forming drum and the actuator when the forming drum is in the waiting position to prevent the forming drum from rotating; It also includes a clamping assembly, through which the actuator is pivotally connected to the forming drum. The clamping assembly pushes and pulls the forming drum to extend or retract relative to the actuator to adjust the clamping force of the tire blank on the first forming roller.
2. The solid tire production system according to claim 1, characterized in that: The pressing assembly comprises: a pressing cylinder and a mounting seat, wherein the cylinder body of the pressing cylinder is connected to the actuator, the piston rod of the pressing cylinder is connected to the mounting seat, and the forming drum is pivotally mounted on the mounting seat; and / or A guide rail is connected to the actuator and is slidably connected to the mounting seat.
3. The solid tire production system according to claim 1 or 2, characterized in that: It also includes a base, a first telescopic member and a first cutter. The base is arranged adjacent to the first forming roller and is connected to the body of the first telescopic member. The telescopic part of the first telescopic member is connected to the first cutter. The first telescopic member pushes and pulls the first cutter to extend or retract relative to the base, so that the first cutter can cut the film at a fixed length.
4. The solid tire production system according to claim 3, characterized in that: The first roller is pivotally mounted on the telescopic portion of the first telescopic member and has a first state in which the first roller is pressed against the outer peripheral wall of the first forming roller and a second state in which the first roller is spaced apart from the outer peripheral wall of the first forming roller. When the first roller is in the first state, the first roller can rotate with the first forming roller under the action of friction. The first cutter is connected to the first roller and protrudes from the outer peripheral wall of the first roller. When the first roller switches from the first state to the second state, the first cutter can make linear contact with the outer peripheral wall of the first forming roller to cut the film.
5. The solid tire production system according to claim 4, characterized in that: The first roller also has a zero position. When the first roller is in the second state, the first cutter can rotate to the zero position along with the first roller, and the first roller is stationary relative to the telescopic portion of the first telescopic member at the zero position.
6. The solid tire production system according to claim 5, characterized in that: The device further comprises a limit cylinder, a blocking shaft and a limit block, wherein the cylinder body of the limit cylinder is mounted on the telescopic portion of the first telescopic member, the piston rod of the limit cylinder is connected to the blocking shaft so as to pull the blocking shaft to extend or retract relative to the cylinder body of the limit cylinder, and the limit block is mounted on the first roller; When the first roller is in the first state, the blocking shaft is spaced apart from the limiting block, and the limiting block can be adsorbed on the blocking shaft at the zero point position.
7. The solid tire production system according to claim 3, characterized in that: The device further comprises a second telescopic member and a second cutter, wherein the body of the second telescopic member is connected to the base, the telescopic portion of the second telescopic member is pivotally connected to the second cutter, the second telescopic member pushes and pulls the second cutter to extend or retract relative to the base, the direction of the pivot axis of the second cutter and the width direction of the film are both consistent with the first direction, and there are two second cutters arranged along the first direction so that the film can be cut at a fixed width by the two second cutters; And / or, at least one of the two second cutters is movably connected to the base along the first direction so as to adjust the distance between the two second cutters.