Apex fixed-length winding forming system and method

Abstract

The invention provides an apex fixed-length winding forming method which comprises the steps that a conveying device for conveying apex in the linear direction and a forming drum device for winding and pasting the apex in the rotating direction are arranged, and the feeding end of the conveying device and the discharging end of the conveying device are oppositely arranged; a detection point is arranged between the discharging end of the conveying device and the feeding end of the forming drum device, and the correction distance between the detection point and the feeding end of the forming drum device is obtained; the conveying device is controlled to convey the apex to the forming drum device, and when the material head of the apex reaches the detection point, the conveying device is controlled to convey the material head of the apex to the feeding end of the forming drum device according to the correction distance; and controlling the forming drum device to wind and attach the apex. According to the apex fixed-length winding forming method, the length error is eliminated, the consistency and stability of apex fixed length are effectively improved, and therefore the high production quality and efficiency of apex tire beads are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of apex rubber bead production, and in particular to a system and method for winding and molding apex rubber in a fixed length. Background Art

[0002] With the development of industrial automation, the apex rubber bead forming equipment has been gradually replaced by the traditional apex rubber umbrella pasting machine manual forming method to the apex rubber automatic pasting production line, realizing the automatic production of the entire process of apex rubber core extrusion, cooling, fixed-length cutting, winding and pasting forming.

[0003] Among many processes, fixed length is the core of the whole process. However, during the conveying process of the apex rubber, it is easy to cause large conveying positioning errors due to rubber shrinkage, starting slippage, etc., resulting in the inability to accurately convey the apex rubber head to the feed end of the forming drum device, resulting in low consistency and poor stability of the apex rubber fixed length, which seriously affects the production quality and efficiency of the apex rubber tire. Summary of the invention

[0004] The present disclosure aims to solve one of the technical problems in the related art at least to some extent.

[0005] To this end, the purpose of the present disclosure is to provide a system and method for winding and molding apex rubber to a fixed length.

[0006] To achieve the above-mentioned purpose, the first aspect of the present disclosure provides a method for winding and molding an apex rubber in a fixed length, comprising: arranging a conveying device for conveying the apex rubber in a linear direction, and a molding drum device for winding and pasting the apex rubber in a rotational direction, and making the feed end of the conveying device and the discharge end of the conveying device relatively arranged; setting a detection point between the discharge end of the conveying device and the feed end of the molding drum device, and obtaining a correction distance between the detection point and the feed end of the molding drum device; controlling the conveying device to convey the apex rubber to the molding drum device, and when the head of the apex rubber reaches the detection point, controlling the conveying device to convey the head of the apex rubber to the feed end of the molding drum device according to the correction distance; and controlling the molding drum device to wrap the apex rubber.

[0007] Optionally, the method further includes: setting a speed reduction point between the discharge end of the conveying device and the detection point; controlling the conveying device to convey the material head of the apex rubber to the speed reduction point at a first preset speed; controlling the conveying device to convey the material head of the apex rubber from the speed reduction point to the detection point at a second preset speed, wherein the second preset speed is less than the first preset speed.

[0008] Optionally, the method also includes: setting a cutting point at the discharge end of the conveying device, and obtaining a first distance between the cutting point and the detection point and a second distance between the cutting point and the feed end of the forming drum device, wherein the correction distance is the difference between the second distance and the first distance; arranging a cutting device at the cutting point, and controlling the cutting device to cut the apex rubber to form a head of the apex rubber; obtaining a high-speed distance between the cutting point and the speed reduction point, and controlling the conveying device to convey the head of the apex rubber by the high-speed distance at the first preset speed; setting a low-speed distance, and controlling the conveying device to convey the head of the apex rubber by the low-speed distance at the second preset speed, and when the head of the apex rubber reaches the detection point, controlling the conveying device to convey the head of the apex rubber by the correction distance, wherein the sum of the high-speed distance and the low-speed distance is greater than the first distance.

[0009] Optionally, the method further includes: calculating the high-speed distance based on a first formula, and the first formula is: S1=L1-(V1×(V1-V2) / A)+0.5×A×((V1-V2) / A) 2 ; Wherein, S1 is the high-speed distance, L1 is the first distance, V1 is the first preset speed, V2 is the second preset speed, and A is the fixed acceleration of the conveying device conveying the apex rubber.

[0010] Optionally, the method also includes: when the head of the apex rubber is conveyed to the feed end of the forming drum device, controlling the conveying device to convey the apex rubber to a cutting distance, and controlling the forming drum device to rotate a first angle according to a synchronization coefficient so that the tail of the apex rubber reaches the cutting point; controlling the cutting device to cut the apex rubber to form the tail of the apex rubber; controlling the forming drum device to rotate a second angle so that the tail of the apex rubber overlaps the head of the apex rubber to form a joint; and pressing the joint to complete the wrapping of the apex rubber.

[0011] Optionally, the method further includes: calculating the cutting distance based on a second formula, and the second formula is: S2=L-L2; wherein S2 is the cutting distance, L is the fixed length of the apex rubber, and L2 is the second distance.

[0012] Optionally, the method further includes: calculating the first angle based on a third formula, and the third formula is: D1=(L-L2-L3) / L×360; wherein D1 is the first angle, and L3 is the lap length of the joint.

[0013] Optionally, the method also includes: calculating the second angle based on a fourth formula, and the fourth formula is: D2=(L2+L4) / L×360; wherein D2 is the second angle, L is the fixed length of the apex rubber, L2 is the second distance, and L4 is the rolled length of the joint.

[0014] Optionally, the method further includes: arranging a pressing device at the feed end of the forming drum device, and when the cutting device cuts the apex rubber, controlling the pressing device to press down the apex rubber at a first preset pressure; when the tail of the apex rubber overlaps the head of the apex rubber to form the joint, controlling the pressing device to press down the joint at a second preset pressure, wherein the second preset pressure is greater than the first preset pressure.

[0015] According to a second aspect of the present disclosure, there is provided an apex rubber fixed-length winding molding system, comprising: a conveying device, the conveying device is used to convey the apex rubber in a straight direction; a molding drum device, the feeding end of the molding drum device and the discharging end of the conveying device are arranged relatively to each other, and the molding drum device is used to wrap the apex rubber in a rotational direction; a detection device, the detection device is arranged at a detection point between the discharging end of the conveying device and the feeding end of the molding drum device, and a correction distance is provided between the detection point and the feeding end of the molding drum device; a control device, the control device is used to control the conveying device to convey the apex rubber to the molding drum device, and when the material head of the apex rubber reaches the detection point, the control device controls the conveying device to convey the material head of the apex rubber to the feeding end of the molding drum device according to the correction distance, and controls the molding drum device to wrap the apex rubber.

[0016] The technical solution provided by the present disclosure may have the following beneficial effects:

[0017] When the material head of the apex rubber reaches the detection point between the discharge end of the conveying device and the feed end of the forming drum device, the conveying device is controlled to convey the material head of the apex rubber to the feed end of the forming drum device according to the correction distance, thereby realizing the repositioning and length compensation of the material head of the apex rubber, reducing the conveying positioning error caused by rubber shrinkage, starting slippage, etc., and thus enabling the material head of the apex rubber to be more accurately conveyed to the feed end of the forming drum device. Therefore, by eliminating the length error, the consistency and stability of the fixed length of the apex rubber are effectively improved, thereby ensuring the high production quality and efficiency of the apex rubber tire bead.

[0018] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 It is a schematic diagram of the process of a method for winding an apex rubber to a fixed length according to an embodiment of the present disclosure;

[0021] Figure 2 It is a structural schematic diagram of a apex rubber fixed-length winding molding system proposed in an embodiment of the present disclosure;

[0022] Figure 3 It is a structural schematic diagram of forming a apex rubber head in the apex rubber fixed-length winding molding method proposed in one embodiment of the present disclosure;

[0023] Figure 4 It is a structural schematic diagram of the case where the apex rubber head reaches the feed end of the forming drum device in the apex rubber fixed-length winding forming method proposed in one embodiment of the present disclosure;

[0024] Figure 5 It is a structural schematic diagram of a single wrapping process in a method for wrapping an apex adhesive in a fixed length in an embodiment of the present disclosure;

[0025] Figure 6 It is a structural schematic diagram of forming a apex rubber tail in a apex rubber fixed-length winding molding method proposed in an embodiment of the present disclosure;

[0026] Figure 7 It is a structural schematic diagram of the joint being pressed together in the apex rubber fixed-length winding molding method proposed in one embodiment of the present disclosure;

[0027] As shown in the figure: 1. conveying device, 2. forming drum device, 3. detecting device, 4. cutting device, 5. pressing device; 100. apex rubber. DETAILED DESCRIPTION

[0028] Embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present disclosure, and are not to be construed as limitations of the present disclosure. On the contrary, the embodiments of the present disclosure include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0029] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the embodiment of the present disclosure provides a method for winding an apex 100 in a fixed length, comprising:

[0030] S1: Arrange a conveying device 1 for conveying the apex 100 in a straight direction, and a forming drum device 2 for wrapping the apex 100 in a rotating direction, and arrange the feeding end of the conveying device 1 and the discharging end of the conveying device 1 opposite to each other;

[0031] S2: setting a detection point between the discharge end of the conveying device 1 and the feed end of the forming drum device 2, and obtaining a corrected distance between the detection point and the feed end of the forming drum device 2;

[0032] S3: Control the conveying device 1 to convey the apex 100 to the forming drum device 2, and when the head of the apex 100 reaches the detection point, control the conveying device 1 to convey the head of the apex 100 to the feeding end of the forming drum device 2 according to the correction distance;

[0033] S4: Control the forming drum device 2 to wrap the apex rubber 100.

[0034] It can be understood that the arrangement of the conveying device 1 can realize the conveyance of the apex rubber 100, and the arrangement of the forming drum device 2 can realize the wrapping of the apex rubber 100. Therefore, through the cooperation of the conveying device 1 and the forming drum device 2, the molding production of the tire bead of the apex rubber 100 is realized.

[0035] Furthermore, when the material head of the apex rubber 100 reaches the detection point between the discharge end of the conveying device 1 and the feed end of the forming drum device 2, the conveying device 1 is controlled to convey the material head of the apex rubber 100 to the feed end of the forming drum device 2 according to the correction distance, thereby realizing the repositioning and length compensation of the material head of the apex rubber 100, reducing the conveying positioning error caused by rubber shrinkage, starting slippage, etc., and thus enabling the material head of the apex rubber 100 to be more accurately conveyed to the feed end of the forming drum device 2. Therefore, by eliminating the length error, the consistency and stability of the fixed length of the apex rubber 100 are effectively improved, thereby ensuring the high production quality and efficiency of the tire bead of the apex rubber 100.

[0036] It should be noted that, in the relevant embodiments, the conveying device 1 is controlled to convey the apex rubber 100 to the forming drum device 2 at a set fixed distance. However, during the production process, the apex rubber 100 is prone to problems such as rubber shrinkage and starting slippage, which causes the length of the apex rubber 100 to change, and further causes the position of the apex rubber 100 head arriving at the feed end of the forming drum device 2 to change. As a result, the consistency of the fixed length of the apex rubber 100 is not high, and the stability is poor, which in turn affects the production quality and efficiency of the tire bead of the apex rubber 100.

[0037] In this embodiment, the conveying device 1 timely corrects the position of the apex rubber 100 head during the process of conveying the apex rubber 100, thereby effectively eliminating the length error caused by the shrinkage of the rubber material, starting slippage, etc., and ensuring the high consistency and stability of the fixed length of the apex rubber 100.

[0038] The conveying device 1 is used to convey the apex rubber 100 to the feeding end of the forming drum device 2 in a straight line direction. The specific type of the conveying device 1 can be set according to actual needs and is not limited to this. For example, the servo controller of the conveying device 1 drives the servo motor of the conveying device 1 to drive the conveying rollers, conveying guide wheels, etc. of the conveying device 1 to rotate, thereby utilizing the conveying rollers, conveying guide wheels, etc. of the conveying device 1 to realize the conveying of the apex rubber 100, wherein the communication end of the servo controller in the conveying device 1 is connected to the communication end of the control device, so as to realize automatic control of the conveying device 1 by utilizing the control device.

[0039] A feeding and guiding mechanism may be provided at the front end of the conveying device 1 , and a side stop wheel device may be provided in the conveying device 1 , without limitation.

[0040] The forming drum device 2 is used to receive the apex rubber 100 at the feeding end, and realize the wrapping and pasting of the apex rubber 100 by means of actions such as rotation. The specific type of the forming drum device 2 can be set according to actual needs, and there is no limitation on this. For example, the servo controller of the forming drum device 2 drives the servo motor of the forming drum device 2 to drive the forming drum of the forming drum device 2 to rotate, thereby realizing the wrapping and pasting of the apex rubber 100 by means of the forming drum of the forming drum device 2, wherein the communication end of the servo controller in the forming drum device 2 is connected to the communication end of the control device, so as to realize the automatic control of the forming drum device 2 by means of the control device.

[0041] The detection point is located between the discharge end of the conveying device 1 and the feed end of the forming drum device 2. The actual position of the apex 100 head can be obtained by detection at the detection point, and the apex 100 head can be repositioned by using the position of the detection point, thereby achieving length compensation and ensuring that the apex 100 head is accurately conveyed to the feed end of the forming drum device 2. In order to improve the compensation accuracy, the detection point can be set close to the feed end of the forming drum device 2, which can also be understood as setting a smaller correction distance, that is, setting the distance between the discharge end of the conveying device 1 and the detection point to be greater than the correction distance between the feed end of the forming drum device 2 and the detection point.

[0042] In some embodiments, the method further comprises:

[0043] A speed reduction point is set between the discharge end and the detection point of the conveying device 1;

[0044] Controlling the conveying device 1 to convey the material head of the apex rubber 100 to the speed reduction point at a first preset speed;

[0045] The conveying device 1 is controlled to convey the material head of the apex rubber 100 from the speed reduction point to the detection point at a second preset speed, wherein the second preset speed is lower than the first preset speed.

[0046] It can be understood that the conveying device 1 is controlled to convey the material head of the apex rubber 100 to the deceleration point at a higher first preset speed, and then the conveying device 1 is controlled to convey the material head of the apex rubber 100 from the deceleration point to the detection point at a lower second preset speed, thereby realizing the speed conversion in the conveying process of the apex rubber 100. Thus, the material head of the apex rubber 100 is made to pass through the detection point at the lower second preset speed, thereby reducing the error caused by the system cycle, thereby ensuring the reliable correction of the position of the material head of the apex rubber 100 at the detection point, and at the same time, the material head of the apex rubber 100 is conveyed to the deceleration point close to the detection point at the higher first preset speed, thereby reducing the conveying time of the material head of the apex rubber 100 and improving the molding efficiency of the tire bead of the apex rubber 100.

[0047] It should be noted that the material is first transported at a higher speed for a distance to reach the speed reduction point, and then transported at a lower speed for a distance to reach the detection point, thereby achieving reliable position correction while ensuring higher processing efficiency.

[0048] The speed reduction point is located between the discharge end and the detection point of the conveying device 1. The specific location of the speed reduction point can be set according to actual needs and is not limited thereto.

[0049] The first preset speed is a relatively high speed, and the second preset speed is a relatively low speed. The specific speeds of the first preset speed and the second preset speed can be set according to actual needs and are not limited thereto.

[0050] like Figure 3 and Figure 4 As shown, in some embodiments, the method further includes:

[0051] A cutting point is set at the discharge end of the conveying device 1, and a first distance between the cutting point and the detection point and a second distance between the cutting point and the feed end of the forming drum device 2 are obtained, wherein the correction distance is the difference between the second distance and the first distance;

[0052] A cutting device 4 is arranged at the cutting point, and the cutting device 4 is controlled to cut the apex 100 to form a material head of the apex 100;

[0053] Obtaining the high-speed distance between the cutting point and the speed reduction point, and controlling the conveying device 1 to convey the material head of the apex rubber 100 at a first preset speed for the high-speed distance;

[0054] A low-speed distance is set, and the conveying device 1 is controlled to convey the material head of the apex rubber 100 at a low-speed distance at a second preset speed, and when the material head of the apex rubber 100 reaches the detection point, the conveying device 1 is controlled to convey the material head of the apex rubber 100 by a correction distance, wherein the sum of the high-speed distance and the low-speed distance is greater than the first distance.

[0055] It can be understood that after the cutting device 4 cuts the apex rubber 100 and forms the material head of the apex rubber 100, the cutting point is used as the starting point and the high-speed distance between the cutting point and the deceleration point is obtained, so as to determine the specific position of the deceleration point between the cutting point and the detection point, thereby controlling the conveying device 1 to convey the material head of the apex rubber 100 at a high-speed distance at a first preset speed, so as to achieve the material head of the apex rubber 100 reaching the deceleration point at a higher speed; thereafter, a low-speed distance is set, and the conveying device 1 is controlled to convey the material head of the apex rubber 100 at a low-speed distance at a second preset speed, so that the material head of the apex rubber 100 can pass the detection point at a lower speed, thereby, when the material head of the apex rubber 100 passes the detection point at a low speed, reliable position correction can be achieved, thereby ensuring that the material head of the apex rubber 100 can be accurately conveyed to the feeding end of the forming drum device 2.

[0056] It should be noted that the high-speed distance is smaller than the first distance, which is used to determine the position of the deceleration point and as a basis for controlling the conveying device 1 to convey the apex rubber 100 material head at high speed. The method for obtaining the high-speed distance can be set according to actual needs and is not limited to this.

[0057] The sum of the high-speed distance and the low-speed distance is greater than the first distance. The low-speed distance is used as a basis for controlling the conveying device 1 to convey the apex rubber 100 material head at a low speed so that the apex rubber 100 material head can pass the detection point at a low speed. The low-speed distance can be set according to actual needs and is not limited to this.

[0058] The cutting point is located at the discharge end of the conveying device 1 and is used to arrange the cutting device 4. At the same time, the cutting of the cutting device 4 is used to form the head of the apex rubber 100, and it serves as the starting point for conveying the head of the apex rubber 100. The specific position of the cutting point can be set according to actual needs and there is no limitation on this.

[0059] The cutting device 4 is used to cut the apex 100 to form the material head of the apex 100. The specific type of the cutting device 4 can be set according to actual needs and is not limited to this. For example, the servo controller of the cutting device 4 drives the servo motor of the cutting device 4 to drive the cutting knife of the cutting device 4 to move, so that the apex 100 is cut by the cutting knife of the cutting device 4, wherein the communication end of the servo controller in the cutting device 4 is connected to the communication end of the control device, so that the control device can realize automatic control of the cutting device 4.

[0060] In some embodiments, the method further comprises:

[0061] The high-speed distance is calculated based on the first formula, and the first formula is:

[0062] S1=L1-(V1×(V1-V2) / A)+0.5×A×((V1-V2) / A)2;

[0063] Wherein, S1 is the high-speed distance, L1 is the first distance, V1 is the first preset speed, V2 is the second preset speed, and A is the fixed acceleration of the conveying device 1 conveying the apex 100 .

[0064] It can be understood that based on the first distance between the cutting point and the detection point, the first preset speed of the apex rubber 100 material head conveying, the second preset speed of the apex rubber 100 material head conveying, the fixed acceleration of the conveying device 1 conveying the apex rubber 100 and the first formula, the high-speed distance between the cutting point and the deceleration point can be accurately calculated, so as to ensure that the apex rubber 100 material head can reliably reach the deceleration point at a higher speed based on the high-speed distance, thereby ensuring a higher molding efficiency of the apex rubber 100 tire bead.

[0065] It should be noted that after the high-speed distance is calculated based on the first formula, the low-speed distance is set so that the material head of the apex 100 can pass the detection point at a low speed. For example, the low-speed distance may be 100 mm.

[0066] like Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments, the method further includes:

[0067] When the head of the apex 100 is conveyed to the feeding end of the forming drum device 2, the conveying device 1 is controlled to convey the apex 100 to the cutting distance, and the forming drum device 2 is controlled to rotate the first angle according to the synchronization coefficient, so that the tail of the apex 100 reaches the cutting point;

[0068] Controlling the cutting device 4 to cut the apex 100 to form a tail of the apex 100;

[0069] Control the forming drum device 2 to rotate to a second angle so that the tail of the apex 100 overlaps the head of the apex 100 to form a joint;

[0070] The joint is pressed together to complete the wrapping of the apex 100 .

[0071] It can be understood that the material head of the apex 100 is accurately conveyed to the feed end of the forming drum device 2 after the position of the detection point is corrected. At this time, the conveying device 1 is controlled to convey the apex 100 to the cutting distance, and the forming drum device 2 is controlled to rotate the first angle according to the synchronization coefficient, so as to realize the partial winding (one-time winding) of the apex 100 in the forming drum device 2 by utilizing the synchronous action of the apex 100 conveying and the forming drum device 2 rotating. Moreover, the rest of the apex 100 is located between the cutting point and the feed end of the forming drum device 2. That is to say, a second distance of the apex 100 is reserved between the cutting point and the feeding end of the forming drum device 2, so that the cutting device 4 can be used to cut and form the tail of the apex 100, thereby realizing the precise fixed length of the apex 100. At the same time, after the tail of the apex 100 is formed, the forming drum device 2 is controlled to rotate the second angle, thereby realizing the full winding (secondary winding) of the apex 100 in the forming drum device 2, and then the winding action of the apex 100 is completed by pressing the joint.

[0072] It should be noted that the conveying device 1 is used as the main axis and the forming drum device 2 is used as the slave axis. The synchronization coefficient is used to control the conveying device 1 to convey the apex 100 to the cutting distance and control the forming drum device 2 to rotate the first angle, which can ensure the tension stability of the rubber on the drum and achieve accurate wrapping of the apex 100 in the forming drum device 2, thereby effectively improving the uniformity of the product. The synchronization coefficient can be set according to actual needs and is not limited to this. For example, the synchronization coefficient R1=S2 / D1, where S2 is the cutting distance and D1 is the first angle.

[0073] When the material head of the apex rubber 100 is transported to the feed end of the forming drum device 2 , the suction nozzle on the first drum plate in the forming drum device 2 absorbs the material head, thereby ensuring the stable winding and pasting of the apex rubber 100 in the forming drum device 2 .

[0074] In some embodiments, the method further comprises:

[0075] The cutting distance is calculated based on the second formula, and the second formula is:

[0076] S2 = L-L2;

[0077] Wherein, S2 is the cutting distance, L is the fixed length of the apex 100, and L2 is the second distance.

[0078] It can be understood that based on the fixed length of the apex rubber 100, the second distance between the cutting point and the feed end of the forming drum device 2, and the second formula, the cutting distance of the apex rubber 100 transported by the conveying device 1 in one wrapping can be accurately calculated, thereby ensuring the precise fixed length of the apex rubber 100, and then achieving efficient and high-quality preparation of the tire bead of the apex rubber 100.

[0079] It should be noted that the fixed length L of the apex 100 is set according to actual needs, and the first distance L1 and the second distance L2 are measured by equipment after the detection point and the cutting point are determined.

[0080] In some embodiments, the method further comprises:

[0081] The first angle is calculated based on the third formula, and the third formula is:

[0082] D1 = (L-L2-L3) / L×360;

[0083] Wherein, D1 is the first angle, and L3 is the lap length of the joint.

[0084] It can be understood that, based on the fixed length of the apex rubber 100, the first distance between the cutting point and the detection point, the second distance between the cutting point and the feed end of the forming drum device 2, and the third formula, the first angle of rotation of the forming drum device 2 in one wrapping can be accurately calculated, thereby ensuring the precise fixed length of the apex rubber 100, and then achieving efficient and high-quality preparation of the tire bead of the apex rubber 100.

[0085] It should be noted that the lap length of the joint refers to the overlapping length of the head and tail of the apex 100 in the radial direction of the forming drum device 2, and the lap length of the joint can be set according to actual needs and is not limited thereto. The lap length of the joint can be set within a range of ±2 mm.

[0086] In some embodiments, the method further comprises:

[0087] The second angle is calculated based on the fourth formula, and the fourth formula is: D2 = (L2 + L4) / L × 360;

[0088] Wherein, D2 is the second angle, L is the fixed length of the apex 100, L2 is the second distance, and L4 is the rolling length of the joint.

[0089] It can be understood that based on the fixed length of the apex rubber 100, the second distance between the cutting point and the feed end of the forming drum device 2, the rolling length of the joint and the fourth formula, the second angle of rotation of the forming drum device 2 in the secondary wrapping can be accurately calculated, thereby ensuring the precise wrapping of the apex rubber 100, and further achieving efficient and high-quality preparation of the tire bead of the apex rubber 100.

[0090] It should be noted that the rolling length of the joint refers to the pressing length after the apex 100 material head and material tail are overlapped, and the rolling length of the joint can be set according to actual needs and is not limited. Among them, the rolling length of the joint can be set in the range of 0mm-10mm.

[0091] like Figure 7As shown, in some embodiments, the method further includes:

[0092] A pressing device 5 is arranged at the feeding end of the forming drum device 2, and when the cutting device 4 cuts the apex 100, the pressing device 5 is controlled to press the apex 100 with a first preset pressure;

[0093] When the tail of the apex 100 overlaps the head of the apex 100 to form a joint, the pressing device 5 is controlled to press the joint with a second preset pressure, wherein the second preset pressure is greater than the first preset pressure.

[0094] It can be understood that when the cutting device 4 cuts the apex glue 100, the pressing device 5 is controlled to press the apex glue 100 at a lower first preset pressure, thereby ensuring that the apex glue 100 can be stably attached to the forming drum device 2. At the same time, when the tail of the apex glue 100 overlaps the head of the apex glue 100 to form a joint, the pressing device 5 is controlled to press the joint at a higher second preset pressure, thereby achieving strong pressing of the head and tail of the apex glue 100, and then completing high-quality wrapping of the apex glue 100.

[0095] It should be noted that the first preset pressure is a relatively low pressure, and the second preset pressure is a relatively high pressure. The specific pressures of the first preset pressure and the second preset pressure can be set according to actual needs and are not limited thereto.

[0096] The pressing device 5 is used to press the apex rubber 100 at different pressures at the feed end of the forming drum device 2, so as to complete the lamination and pressing of the apex rubber 100 on the forming drum in the forming drum device 2. The specific type of the pressing device 5 can be set according to actual needs and is not limited to this. For example, the servo controller of the pressing device 5 drives the servo motor of the pressing device 5 to drive the lower pressing roller rotatably set in the pressing device 5 to press down, so as to realize the winding and pasting of the apex rubber 100 by using the lower pressing roller of the pressing device 5, wherein the communication end of the servo controller in the pressing device 5 is connected to the communication end of the control device, so as to realize the automatic control of the pressing device 5 by using the control device.

[0097] Furthermore, the pressing device 5 may be a Thousand-Layer Sheet Pressing Device 5, in which five different pressure areas are arranged inside the Thousand-Layer Sheet, and the pressures in different areas are controlled by a proportional valve to complete the overlapping and pressing function of the material head and the material tail.

[0098] like Figure 2As shown, the embodiment of the present disclosure also proposes a fixed-length winding molding system for apex rubber 100, including: a conveying device 1, a molding drum device 2, a detection device 3 and a control device (not shown in the figure), the conveying device 1 is used to convey the apex rubber 100 in a straight direction, the feed end of the molding drum device 2 and the discharge end of the conveying device 1 are arranged relatively to each other, and the molding drum device 2 is used to wrap the apex rubber 100 in a rotational direction, the detection device 3 is arranged at a detection point between the discharge end of the conveying device 1 and the feed end of the molding drum device 2, and there is a correction distance between the detection point and the feed end of the molding drum device 2, the control device is used to control the conveying device 1 to convey the apex rubber 100 to the molding drum device 2, and when the material head of the apex rubber 100 reaches the detection point, the conveying device 1 is controlled to convey the material head of the apex rubber 100 to the feed end of the molding drum device 2 according to the correction distance, and the molding drum device 2 is controlled to wrap the apex rubber 100.

[0099] It can be understood that the arrangement of the conveying device 1 can realize the conveyance of the apex rubber 100, and the arrangement of the forming drum device 2 can realize the wrapping of the apex rubber 100. Therefore, through the cooperation of the conveying device 1 and the forming drum device 2, the molding production of the tire bead of the apex rubber 100 is realized.

[0100] Furthermore, when the material head of the apex rubber 100 reaches the detection point between the discharge end of the conveying device 1 and the feed end of the forming drum device 2, the control device uses the detection of the detection device 3 to control the conveying device 1 to convey the material head of the apex rubber 100 to the feed end of the forming drum device 2 according to the correction distance, thereby realizing the repositioning and length compensation of the material head of the apex rubber 100, reducing the conveying positioning error caused by rubber shrinkage, starting slippage, etc., and thus enabling the material head of the apex rubber 100 to be more accurately conveyed to the feed end of the forming drum device 2. Therefore, by eliminating the length error, the consistency and stability of the fixed length of the apex rubber 100 are effectively improved, thereby ensuring the high production quality and efficiency of the tire bead of the apex rubber 100.

[0101] It should be noted that the detection device 3 is used to detect whether the material head of the apex rubber 100 reaches the detection point. The specific type of the detection device 3 can be set according to actual needs and is not limited to this. For example, the detection device 3 can be a photoelectric switch, wherein the communication end of the photoelectric switch is connected to the communication end of the control device, so as to use the control device to realize the automatic correction of the position of the material head of the apex rubber 100.

[0102] The control device is used for automatic control of the system. The specific type of the control device can be set according to actual needs and is not limited to this. For example, the control device can be a PLC processor. The control device can also use the IO interface to communicate with a remote substation.

[0103] Based on the method and system of this embodiment, the stability of the fixed length of the apex 100 can be effectively improved, and the accuracy of the joint overlap can reach ±1 mm. Compared with the solutions in the relevant embodiments, the equipment structure is simpler and the failure rate is lower, which further reduces the difficulty of equipment maintenance and debugging, and is more conducive to the debugging and switching of different products. At the same time, the efficiency of the equipment is further improved compared with the solutions in the relevant embodiments.

[0104] It should be noted that, in the description of the present disclosure, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present disclosure, unless otherwise specified, the meaning of "plurality" is two or more.

[0105] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present disclosure includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0106] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0107] Although the embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A method for winding an apex rubber to a fixed length, characterized in that: include: Arrange a conveying device for conveying the apex rubber in a straight line direction, and a forming drum device for wrapping the apex rubber in a rotational direction, and arrange the feeding end of the conveying device and the discharging end of the conveying device opposite to each other; Setting a detection point between the discharge end of the conveying device and the feed end of the forming drum device, and obtaining a corrected distance between the detection point and the feed end of the forming drum device; Control the conveying device to convey the apex rubber to the forming drum device, and when the head of the apex rubber reaches the detection point, control the conveying device to convey the head of the apex rubber to the feed end of the forming drum device according to the correction distance; The forming drum device is controlled to wrap the apex rubber.

2. The method for winding an apex rubber to a fixed length according to claim 1, characterized in that: The method further comprises: A speed reduction point is provided between the discharge end of the conveying device and the detection point; Controlling the conveying device to convey the apex rubber head to the speed reduction point at a first preset speed; The conveying device is controlled to convey the material head of the apex rubber from the speed reduction point to the detection point at a second preset speed, wherein the second preset speed is less than the first preset speed.

3. The method for winding an apex rubber to a fixed length according to claim 2, characterized in that: The method further comprises: A cutting point is set at the discharge end of the conveying device, and a first distance between the cutting point and the detection point and a second distance between the cutting point and the feed end of the forming drum device are obtained, wherein the correction distance is the difference between the second distance and the first distance; Arranging a cutting device at the cutting point, and controlling the cutting device to cut the apex to form a head of the apex; Acquire the high-speed distance between the cutting point and the speed reduction point, and control the conveying device to convey the apex rubber head to the high-speed distance at the first preset speed; A low-speed distance is set, and the conveying device is controlled to convey the material head of the apex rubber by the low-speed distance at the second preset speed, and when the material head of the apex rubber reaches the detection point, the conveying device is controlled to convey the material head of the apex rubber by the correction distance, wherein the sum of the high-speed distance and the low-speed distance is greater than the first distance.

4. The method for winding an apex rubber to a fixed length according to claim 3, characterized in that: The method further comprises: The high-speed distance is calculated based on a first formula, and the first formula is: <h2 style=";text-align:left;direction:ltr">S1 = L1 - (V1 × (V1 - V2) / A) + 0.5 × A × ((V1 - V2) / A)<h2 style=";text-align:left;direction:ltr"> 2 <h2 style=";text-align:left;direction:ltr"> ; Wherein, S1 is the high-speed distance, L1 is the first distance, V1 is the first preset speed, V2 is the second preset speed, and A is a fixed acceleration of the conveying device conveying the apex.

5. The method for winding an apex rubber to a fixed length according to claim 3, characterized in that: The method further comprises: When the head of the apex rubber is conveyed to the feeding end of the forming drum device, the conveying device is controlled to convey the apex rubber to the cutting distance, and the forming drum device is controlled to rotate a first angle according to the synchronization coefficient so that the tail of the apex rubber reaches the cutting point; Controlling the cutting device to cut the apex to form a tail of the apex; Controlling the forming drum device to rotate a second angle so that the tail of the apex rubber overlaps the head of the apex rubber to form a joint; The joint is pressed together to complete the wrapping of the apex.

6. The method for winding an apex rubber to a fixed length according to claim 5, characterized in that: The method further comprises: The cutting distance is calculated based on a second formula, and the second formula is: S2 = L-L2; Among them, the S2 is the cutting distance, the L is the fixed length of the apex rubber, and the L2 is the second distance.

7. The method for winding and molding apex rubber to a fixed length according to claim 5, characterized in that: The method further comprises: The first angle is calculated based on a third formula, and the third formula is: D1 = (L-L2-L3) / L×360; Wherein, D1 is the first angle, and L3 is the lap length of the joint.

8. The method for winding an apex rubber to a fixed length according to claim 5, characterized in that: The method further comprises: The second angle is calculated based on a fourth formula, and the fourth formula is: D2=(L2+L4) / L×360; Wherein, the D2 is the second angle, the L is the fixed length of the apex rubber, the L2 is the second distance, and the L4 is the rolling length of the joint.

9. The method for winding an apex rubber to a fixed length according to claim 5, characterized in that: The method further comprises: A pressing device is arranged at the feeding end of the forming drum device, and when the cutting device cuts the apex rubber, the pressing device is controlled to press the apex rubber with a first preset pressure; When the tail of the apex rubber overlaps the head of the apex rubber to form the joint, the pressing device is controlled to press the joint with a second preset pressure, wherein the second preset pressure is greater than the first preset pressure.

10. A fixed-length winding system for apex rubber, characterized in that: include: A conveying device, the conveying device is used to convey the apex rubber in a straight line direction; A forming drum device, wherein a feeding end of the forming drum device and a discharging end of the conveying device are arranged opposite to each other, and the forming drum device is used for wrapping the apex rubber along a rotation direction; A detection device, wherein the detection device is arranged at a detection point between the discharge end of the conveying device and the feed end of the forming drum device, and a correction distance is provided between the detection point and the feed end of the forming drum device; A control device, wherein the control device is used to control the conveying device to convey the apex rubber to the forming drum device, and when the head of the apex rubber reaches the detection point, control the conveying device to convey the head of the apex rubber to the feed end of the forming drum device according to the correction distance, and control the forming drum device to wrap the apex rubber.

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