Rubber strip straightening and feeding conveying device based on tire bead composite processing

Abstract

This invention discloses a rubber strip straightening and feeding conveying device based on tire bead compounding, relating to the field of tire manufacturing technology. It addresses the problem of skewed or even "derailed" feeding of triangular rubber strips during tire bead compounding due to variations in specifications. The main improvements are to the tension control structure and the receiving and feeding structure for the triangular rubber strips. Specifically, the triangular rubber strips are fed at a stable speed and according to their specifications through the folding guidance of the conveying shrink roller combined with the automatic eccentric adjustment of the cooling roller. Furthermore, a floating receiving wheel and an upper storage wheel, along with a lower storage wheel, enable dynamic floating winding during the receiving and buffering stages to achieve speed-based feeding of the triangular rubber strips. In other words, the feeding process based on folding guidance and automatic eccentric adjustment, supplemented by dynamic floating winding, effectively achieves stable feeding of triangular rubber strips during tire bead compounding.

Description

Technical Field

[0001] This invention relates to the field of tire manufacturing technology, and more specifically to a rubber strip straightening and feeding conveyor based on bead composite processing. Background Technology

[0002] The tire heel refers to the part where the outer edge of the tire bead meets the rounded corner of the tire bead seat on the rim. The center of the bead is the tire bead itself. The tire bead is the part of the tire that is mounted on the rim. It is mainly composed of a steel wire ring and a triangular rubber strip. It is an important component of the tire, and its main functions are to fix the tire, transmit power and steering, support the tire sidewall, enhance directional stability, provide steering accuracy, provide rigidity transition, extend tire life, and improve ride comfort.

[0003] Bead wires are used in the bead portion of a tire and are one of the main skeleton materials of the tire. The function of the tire bead is to secure the tire tightly to the rim and bear various interaction forces between the tire and the rim. In short, the bead of a semi-steel radial tire plays an important role in improving the tire's structural stability, protecting the sidewall, enhancing the tire body strength, balancing stress distribution, reducing temperature, reducing noise, enhancing wet grip, and adapting to different climatic conditions.

[0004] In the production process of semi-steel radial tires, the bonding of the bead triangle is a crucial step. The original bead bonding production line consists of four production units: triangle strip extrusion, cooling, material storage, and bonding. However, due to limitations in the height of the triangle strip, the inner diameter of the steel wire ring, and the length of the material storage, only a small range of bead specifications can be produced. During the feeding process of the triangle strip, different specifications can cause skewed or even "derailed" feeding, directly affecting the smooth bonding process of the bead. Therefore, this application proposes a solution. Summary of the Invention

[0005] The purpose of this invention is to provide a rubber strip straightening and feeding conveyor based on bead bonding processing, which solves the problem of bead bonding processing failure caused by misalignment due to different specifications in the feeding of triangular rubber strips.

[0006] The objective of this invention can be achieved through the following technical solution: a rubber strip straightening and feeding conveying device based on tire bead composite processing, comprising a base and a frame arranged in a continuous manner, wherein a receiving component and a buffer component for receiving triangular rubber strips are installed on the base, and a shrinking component for correcting the feeding of triangular rubber strips is installed on the frame.

[0007] The shrinking assembly includes a bracket mounted on a base frame. A floating roller is rotatably mounted on the lower middle part of the bracket via a floating rod. A conveying fixed roller is mounted on one side of the upper end of the bracket. A conveying shrinking roller is connected to the conveying fixed roller via a rotation fulcrum in the feeding direction. A buffer assembly is mounted on one end of the base near the feeding side. The buffer assembly includes a symmetrically arranged bottom support and an upper moving support. A lower storage wheel and an upper storage wheel are respectively mounted crosswise on the bottom support and the upper moving support.

[0008] A further configuration includes a cooling assembly between the base and the frame, the cooling assembly comprising a platform and a cooling roller, and an inclined ball wheel installed on the upper end of the platform corresponding to the cooling roller.

[0009] A further configuration is provided: a motor is installed on one side of one of the test stands, the output end of the motor is laterally connected to a rotating shaft connected to a cooling roller disc via a reduction gearbox, and a rotating rod connected to a slanted ball wheel is installed on the upper end of the test stands.

[0010] The configuration is further defined as follows: the floating rod is rotatably mounted in the middle of the support, a floating arm is sleeved on the outside of the floating rod, the floating roller is rotatably mounted on the bottom of the floating arm, the floating roller has a symmetrical conical structure, a conveying glue groove is opened in the middle of the floating roller, and a counterweight rod is installed at the upper end of the floating arm.

[0011] The configuration is further defined as follows: a second cylinder is rotatably mounted in the middle of the support, the output end of the second cylinder is rotatably connected to the lower end of the conveying shrink roller, the fulcrum of rotation includes a bearing seat disposed at the upper end of the support, and the conveying shrink roller is deflected through the bearing seat.

[0012] The receiving assembly is further configured such that: the receiving assembly includes a sliding rod seat disposed on the base near the extruder side, a slider is mounted on the sliding rod seat, receiving wheels are symmetrically arranged on the slider, and a buffer drive wheel is mounted on the upper distal side of the sliding rod seat.

[0013] The buffer assembly is further configured such that: the buffer assembly also includes a guide wheel rotatably disposed on the far side of the base, and the upper moving seat is equipped with a cylinder facing downward and connected to the base.

[0014] The configuration is further defined as follows: a vertical rail that is slidably connected to the upper sliding seat is installed on one side of the base, and a support rod that is connected to the sliding rod seat is installed on the middle of the outer side of the vertical rail.

[0015] The present invention has the following beneficial effects:

[0016] 1. This invention addresses the technical problem of skewed or even "derailed" feeding of the triangular rubber strip during tire bead compounding due to varying specifications. The feeding process for the triangular rubber strip in tire bead compounding is similar to the feeding principle in existing technologies, with the main differences being improvements to the tension control structure and the receiving feeding structure. Specifically:

[0017] The triangular rubber strip is fed at a stable speed and according to its specifications through the folding guide of the conveying shrink roller and the automatic eccentric adjustment of the cooling roller. On this basis, the triangular rubber strip is fed at a speed by means of a floating receiving wheel and an upper storage wheel in conjunction with a lower storage wheel. In this way, the triangular rubber strip is fed at a speed by means of a dynamic floating winding method during the receiving and buffering stages. That is, the feeding process based on folding guide and automatic eccentric adjustment, supplemented by dynamic floating winding, can effectively realize the stable feeding of triangular rubber strips in the tire bead compounding process.

[0018] 2. In the tension control process of the triangular rubber strip, the dynamic and fixed pulley structure composed of the lower and upper storage wheels, combined with the telescopic structure of cylinder one, form three combined tension control methods through the receiving stage and the buffer stage, so as to adapt to the feeding accuracy control of different triangular rubber strip sizes.

[0019] Specifically, the tension control method includes three combinations: First, the vertical position of the receiving wheel is changed independently by the slider; second, the vertical position of the upper moving seat is changed by the cylinder, thereby changing the distance between the lower and upper storage wheels; third, the first and second methods are combined, which can change both the vertical position of the receiving wheel and the distance between the lower and upper storage wheels. The combination of these two methods constitutes three combined tension control methods, which ensure the stability of the buffer during the feeding process of the triangular rubber strip and make adaptive settings according to the progress of tire bead composite processing. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the tire bead composite processing flow structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of the receiving component and the caching component of the present invention;

[0023] Figure 3This is a side view of the receiving component of the present invention;

[0024] Figure 4 This is a schematic diagram of the cooling assembly of the present invention;

[0025] Figure 5 This is a side view of the cooling assembly of the present invention;

[0026] Figure 6 This is a side view of the shrinkage component of the present invention;

[0027] Figure 7 This is a schematic diagram of the feed side structure of the shrink assembly of the present invention;

[0028] Figure 8 This is a schematic diagram of the folding and shrinking of the shrinking component of the present invention.

[0029] In the diagram: 1. Buffer assembly; 101. Base support; 102. Upper moving seat; 103. Lower storage wheel; 104. Upper storage wheel; 105. Vertical rail; 106. Cylinder 1; 107. Guide wheel; 2. Cooling assembly; 201. Frame; 202. Inclined ball wheel; 203. Cooling roller; 204. Motor; 205. Rotating shaft; 206. Rotating rod; 3. Shrink assembly; 301. Bracket; 302. Floating rod; 303. Floating roller; 304. Cylinder 2; 305. Conveying fixed roller; 306. Conveying shrink roller; 307. Bearing seat; 308. Floating arm; 309. Counterweight rod; 4. Receiving assembly; 401. Sliding rod seat; 402. Slider; 403. Receiving wheel; 404. Buffer drive wheel; 5. Base; 6. Base frame; 7. Support rod. Detailed Implementation

[0030] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: To address the technical problem of skewed or even "derailed" feeding of the triangular rubber strip during tire bead lamination due to varying specifications, the following technical solution is proposed:

[0032] Reference Figures 1-8 As shown, the rubber strip straightening and feeding conveying device based on tire bead composite processing in this embodiment includes a base 5 and a base frame 6 arranged in a continuous manner. The base 5 is equipped with a receiving component 4 and a buffer component 1 for receiving triangular rubber strips, and the base frame 6 is equipped with a shrinking component 3 for correcting the feeding of triangular rubber strips.

[0033] The shrinking assembly 3 includes a bracket 301 mounted on a base frame 6. A floating roller 303 is rotatably mounted on the lower middle part of the bracket 301 via a floating rod 302. A conveying fixed roller 305 is mounted on one side of the upper end of the bracket 301. A conveying shrinking roller 306 is connected to the conveying fixed roller 305 in the feeding direction via a rotation fulcrum. A second cylinder 304 is rotatably mounted in the middle of the bracket 301. The output end of the second cylinder 304 is rotatably connected to the lower end of the conveying shrinking roller 306. The rotation fulcrum includes a bearing seat 307 located on the upper end of the bracket 301. The conveying shrinking roller 306 is deflected through the bearing seat 307.

[0034] The active control process of the conveying shrink roller 306 is mainly carried out by the tilt angle of the conveying shrink roller 306 relative to the conveying stationary roller 305. The conveying shrink roller 306 is deflected by the cylinder 304, thereby changing the transmission direction and end tension control of the triangular rubber strips on the conveying stationary roller 305 and the conveying shrink roller 306, and controlling the transmission accuracy in accordance with the specifications of the triangular rubber strips.

[0035] Reference Figure 2 As shown, a buffer assembly 1 is installed at one end of the base 5 near the feed side. The buffer assembly 1 includes a symmetrically arranged bottom support 101 and an upper moving support 102, and a lower storage wheel 103 and an upper storage wheel 104 are respectively installed on the bottom support 101 and the upper moving support 102.

[0036] The lower storage wheel 103 and the upper storage wheel 104 are staggered and can be spaced according to the specifications of the triangular rubber strip. After the spacing is adjusted, the length and height of the buffered triangular rubber strip can be actively controlled, thereby matching the subsequent tire bead composite processing rate and improving the forming efficiency of the integrated tire bead composite processing equipment.

[0037] Reference Figure 2 and Figure 3 As shown, the receiving component 4 includes a sliding rod seat 401 disposed on the base 5 near the extruder side. A slider 402 is mounted on the sliding rod seat 401, and symmetrically arranged receiving wheels 403 are mounted on the slider 402. The receiving wheels 403 have a vertically sliding structure, which can adjust the initial receiving position according to the triangular rubber strip led out by the extruder, and can cooperate with the buffer drive wheel 404 to adjust the subsequent buffer insertion position. The receiving and insertion sequence can be effectively adjusted according to the parameters and specifications of the triangular rubber strip, and the buffer rate can be adjusted according to the tire bead compounding processing progress.

[0038] Reference Figure 4 and Figure 5As shown, a cooling assembly 2 is provided between the base 5 and the base frame 6. The cooling assembly 2 includes a frame 201 and a cooling roller 203. A slanted ball wheel 202 is installed on the upper end of the frame 201 corresponding to the cooling roller 203. A motor 204 is installed on one side of one of the frames 201. The output end of the motor 204 is laterally connected to a rotating shaft 205 connected to the cooling roller 203 through a reduction gearbox. A rotating rod 206 connected to the slanted ball wheel 202 is installed on the upper end of the frame 201.

[0039] Reference Figure 6 As shown, the floating rod 302 is rotatably mounted in the middle of the bracket 301. A floating arm 308 is sleeved on the outside of the floating rod 302. A floating roller 303 is rotatably mounted on the bottom of the floating arm 308. The floating roller 303 has a symmetrical conical structure. A conveying groove is opened in the middle of the floating roller 303. A counterweight rod 309 is installed at the upper end of the floating arm 308.

[0040] Basic Principle: This invention relates to the feeding process of the triangular rubber strip in tire bead compounding. The feeding principle is basically similar to that of existing triangular rubber strip technologies. The main differences lie in the improvements to the tension control structure and the receiving feeding structure during triangular rubber strip feeding. Specifically:

[0041] The triangular rubber strip is fed at a stable speed and according to its specifications through the folding guide of the conveying shrink roller 306 and the automatic eccentric adjustment of the cooling roller 203. On this basis, the triangular rubber strip is fed at a speed by means of the floating receiving wheel 403 and the upper storage wheel 104 in conjunction with the lower storage wheel 103, so that the triangular rubber strip is fed at a speed by means of dynamic floating winding in the receiving and buffering stage. That is, the feeding process based on folding guide and automatic eccentric adjustment, supplemented by dynamic floating winding, can effectively realize the stable feeding of triangular rubber strip in the tire bead compounding process.

[0042] The feeding process of the triangular rubber strip in this invention is briefly described as follows: feeding into the extruder, extruding the triangular rubber strip, introducing the triangular rubber strip into the receiving component 4, the triangular rubber strip passing through the cooling component 2 to complete cooling, the triangular rubber strip being introduced into the buffer component 1 for temporary storage, the triangular rubber strip passing through the shrinking component 3 for feeding and guiding, entering the horizontal rotating bonding disc to complete bonding with the steel wire ring and ejecting the tire bead.

[0043] Example 2: This example is a further structural optimization of the structure in Example 1:

[0044] Reference Figures 1-8 As shown, a buffer drive wheel 404 is installed on the far side of the upper end of the sliding rod seat 401. The buffer assembly 1 also includes a guide wheel 107 that is rotatably disposed on the far side of the base seat 101. A cylinder 106 facing downward and connected to the base seat 101 is installed on the upper moving seat 102.

[0045] A vertical rail 105 that is slidably connected to the upper sliding seat 102 is installed on one side of the base 101, and a support rod 7 that is connected to the sliding rod seat 401 is installed on the middle of the outer side of the vertical rail 105.

[0046] Structural advantages: Combining the above-described Embodiment 1 and its appendix Figure 2 As shown, it should be noted that the receiving stage and the buffering stage are composed of three combined tension control methods: the moving and fixed pulley structure formed by the lower storage wheel 103 and the upper storage wheel 104, combined with the telescopic structure of the cylinder 106. This allows for the adaptation to the feeding accuracy control of different triangular rubber strip sizes.

[0047] It should be noted again that the tension control method includes three combinations: First, the vertical position of the receiving wheel 403 is changed independently by working with the slider 402; second, the vertical position of the upper moving seat 102 is changed by the cylinder 106, thereby changing the distance between the lower storage wheel 103 and the upper storage wheel 104; third, the first and second methods are combined, which can change both the vertical position of the receiving wheel 403 and the distance between the lower storage wheel 103 and the upper storage wheel 104. The combination of these two methods constitutes three combined tension control methods, which ensure the stability of the buffer during the feeding process of the triangular rubber strip and can be adaptively set according to the progress of the tire bead composite processing.

[0048] Example 3: Refer to Figures 1-8 As shown, this embodiment combines the technical content of Embodiment 1 and Embodiment 2 to form a method for straightening and conveying rubber strips based on tire bead composite processing, including the following steps:

[0049] S1: Extruder feeding: Manual feeding, feed the rubber strip into the feed port, straighten the rubber strip to prevent it from curling or knotting, and ensure that the rubber strip can be smoothly fed into the feed port; Extruder start-up preparation, check whether the temperature of each section of the extruder is normal, and start the extruder after confirming that it is normal; On the operation panel at the extruder head, there is an extruder speed adjustment switch. First, slow down the speed of the extruder, and then gradually increase the speed after it is normal.

[0050] S2: Extruder extrudes triangular rubber strips: The conveyor belt is in a vertical position, and the shape of the extruded triangular rubber is checked to see if it meets the requirements. The dimensions of each part of the triangular rubber are measured to see if they are within the process requirements. If the shape of the triangular rubber does not meet the requirements, the triangular rubber die plate needs to be adjusted, and then a trial extrusion is performed until the shape of the extruded triangular rubber meets the requirements. If the buffer component 1 is in the "full" state, the extrusion of the extruder is paused.

[0051] S3: Introduce a triangular rubber strip into the receiving assembly 4: The rubber strip is introduced by winding around the receiving wheel 403;

[0052] S4: The triangular rubber strip is inserted into the cooling assembly 2 to complete the cooling: During cooling, the eccentricity of the cooling roller 203 is adjusted according to the specifications of the triangular rubber strip, so as to adapt the triangular rubber strips of different specifications to pass through between the cooling roller 203 and the inclined ball wheel 202.

[0053] S5: The triangular rubber strip is introduced into the buffer assembly 1 for temporary storage: it is wound around the lower storage wheel 103 in the buffer assembly 1 through the buffer drive wheel 404, and the lower storage wheel 103 and the upper storage wheel 104 are interlaced in sequence and finally exited by the guide wheel 107.

[0054] S6: The triangular rubber strip is inserted into the shrink assembly 3 for feeding and guiding: the tilt angle of the conveying shrink roller 306 relative to the conveying fixed roller 305 is adjusted, and the conveying shrink roller 306 is deflected by the cylinder 2 304, thereby changing the transmission direction and end tension control of the triangular rubber strip on the conveying fixed roller 305 and the conveying shrink roller 306, and the transmission accuracy control is carried out in accordance with the specifications of the triangular rubber strip.

[0055] S7: Entering the horizontal rotating bonding disc to complete bonding with the steel wire ring and ejecting the tire bead: The steel wire ring is manually placed on the bonding disc. The bonding disc expands and positions the steel wire ring under the action of the pneumatic gripper. The triangular adhesive is delivered to the steel wire ring pressing position. The clamping device on the horizontal rotating bonding disc presses the triangular adhesive and bonds it to the steel wire ring. The horizontal rotating bonding disc drives the steel wire ring and triangular adhesive to rotate simultaneously. At the same time, the main and auxiliary pressure roller devices press the triangular adhesive onto the steel wire ring. The servo motor drives the bonding disc to rotate. After the fixed length is completed, the front end of the triangular adhesive is cut by the cutter. The clamping ring on the horizontal rotating disc is reset under the action of the cylinder. The servo motor continues to rotate a small step to the fixed length, bonding. The two extrusion rollers roll and press the joint. The bonding disc is positioned and released, and the ejection device ejects the tire bead.

[0056] In summary, the improvements primarily focus on the tension control structure and the receiving and feeding structure during the feeding of the triangular rubber strip. Specifically, the triangular rubber strip is fed at a stable speed and according to its specifications through the folding guidance of the conveying shrink roller 306 combined with the automatic eccentric adjustment of the cooling roller 203. Furthermore, the floating receiving wheel 403 and the upper storage wheel 104, along with the lower storage wheel 103, enable the triangular rubber strip to be fed at the specified speed using a dynamic floating winding method during the receiving and buffering stages. In other words, the feeding process based on folding guidance and automatic eccentric adjustment, supplemented by dynamic floating winding, effectively achieves stable feeding of the triangular rubber strip during the tire bead composite processing.

[0057] On the other hand, the three combined tension control methods are formed by the moving and fixed pulley structure of the lower storage wheel 103 and the upper storage wheel 104 in the receiving stage and the buffer stage, combined with the telescopic structure of the cylinder 106, so as to adapt to the feeding accuracy control of different triangular rubber strip sizes.

[0058] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A rubber strip straightening and feeding conveying device based on tire bead composite processing, comprising a base (5) and a frame (6) arranged in a continuous manner, characterized in that, The base (5) is equipped with a receiving component (4) and a buffer component (1) for receiving triangular rubber strips, and the base frame (6) is equipped with a shrinking component (3) for correcting the feeding of triangular rubber strips. The shrinking assembly (3) includes a bracket (301) mounted on a base frame (6). A floating roller (303) is rotatably mounted on the lower middle part of the bracket (301) via a floating rod (302). A conveying fixed roller (305) is mounted on one side of the upper end of the bracket (301). A conveying shrinking roller (306) is connected to the conveying fixed roller (305) in the feeding direction via a rotation fulcrum. The base (5) is equipped with a buffer assembly (1) at one end near the feed side. The buffer assembly (1) includes a symmetrically arranged bottom support (101) and an upper moving base (102), and the bottom support (101) and the upper moving base (102) are respectively equipped with a cross-arranged lower storage wheel (103) and an upper storage wheel (104). A cooling assembly (2) is provided between the base (5) and the base frame (6). The cooling assembly (2) includes a frame (201) and a cooling roller (203). An inclined ball wheel (202) is installed on the upper end of the frame (201) corresponding to the cooling roller (203). The floating rod (302) is rotatably disposed in the middle of the bracket (301). A floating arm (308) is sleeved on the outside of the floating rod (302). The floating roller (303) is rotatably installed at the bottom of the floating arm (308). The floating roller (303) has a symmetrical conical structure. A conveying glue groove is opened in the middle of the floating roller (303). A counterweight rod (309) is installed at the upper end of the floating arm (308). A second cylinder (304) is rotatably mounted in the middle of the bracket (301). The output end of the second cylinder (304) is rotatably connected to the lower end of the conveying shrink roller (306). The fulcrum of rotation includes a bearing seat (307) set on the upper end of the bracket (301). The conveying shrink roller (306) is deflected through the bearing seat (307).

2. The rubber strip straightening and feeding conveyor device based on tire bead composite processing according to claim 1, characterized in that, One of the stands (201) is equipped with a motor (204) on one side. The output end of the motor (204) is connected laterally to a rotating shaft (205) connected to a cooling roller (203) via a gearbox. The upper end of the stand (201) is equipped with a rotating rod (206) connected to a ball wheel (202).

3. The rubber strip straightening and conveying device based on tire bead composite processing according to claim 1, characterized in that, The receiving assembly (4) includes a sliding rod seat (401) disposed on the base (5) near the extruder side, a slider (402) is mounted on the sliding rod seat (401), a receiving wheel (403) is mounted on the slider (402) and a buffer drive wheel (404) is mounted on the upper far side of the sliding rod seat (401).

4. The rubber strip straightening and conveying device based on tire bead composite processing according to claim 3, characterized in that, The buffer assembly (1) also includes a guide wheel (107) rotatably disposed on the far side of the base (101), and a cylinder (106) facing downward and connected to the base (101) is mounted on the upper moving seat (102).

5. The rubber strip straightening and feeding conveyor device based on tire bead composite processing according to claim 4, characterized in that, A vertical rail (105) that is slidably connected to the upper sliding seat (102) is installed on one side of the base (101), and a support rod (7) that is connected to the sliding rod seat (401) is installed on the middle of the outer side of the vertical rail (105).

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