Automatic belt tensioner

Abstract

The application discloses a kind of automatic material continuation device of belt layer, including conveying platform and roller unit;Roller unit includes roller bracket and material end sensor, first group of row roller and second group of row roller are sequentially linearly arranged and can be independently driven on roller bracket, the beginning of first group of row roller is connected with the conveying tail end of conveying platform, the end of first group of row roller is connected with the beginning of second group of row roller, second group of row roller can support the material tail of the belt layer material roll to be continued, first group of row roller can convey the material head of newly loaded belt layer material roll to the position of splicing with material tail;Roller bracket is further provided with sewing mechanism, and the splicing position of material head and material tail is rolled by sewing mechanism to realize sewing.The material continuation of the automatic material continuation device of belt layer is mainly completed by the automatic material continuation device itself, so that the belt layer material continuation time is greatly shortened, then machine downtime is shortened, and the degree of automation and production efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of tire forming technology, and in particular to an automatic belt layer feeding device. Background Technology

[0002] Generally, tire forming needs to be carried out on tire forming equipment. In the current tire forming process, after the belt layer runs out of material, the machine needs to be stopped and the rubber material needs to be manually placed from the guide carriage onto the belt layer conveyor belt. The whole process needs to be done manually, the downtime is long, the degree of automation is not high, and it affects the tire production efficiency.

[0003] In summary, how to solve the problem of belt layer material supply affecting production efficiency during tire molding has become a technical challenge that urgently needs to be addressed by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic belt layer feeding device to solve the problem of belt layer feeding affecting production efficiency during tire molding.

[0005] To achieve the above objectives, the present invention provides an automatic feeding device for belt layer, comprising a conveying platform and a roller mill unit; the conveying platform is used to convey the head of the belt layer rubber compound to the roller mill unit; the roller mill unit includes a roller support, a sewing mechanism disposed on the roller support, and a material end sensor for detecting whether a head or tail of material has passed by; the roller support is provided with a first set of rollers and a second set of rollers arranged in a straight line and capable of being driven independently of each other; the beginning of the first set of rollers is connected to the conveying tail end of the conveying platform, and the end of the first set of rollers is connected to the beginning of the second set of rollers. The material end sensor is located above the first set of rollers. When the material end sensor detects the tail of the belt layer roll, both the first and second sets of rollers continue to convey until the tail reaches a designated position on the second set of rollers. At this point, the second set of rollers stops conveying and waits for the next material. When the material end sensor detects the head of the belt layer roll, the first set of rollers continues to convey until the head also reaches the designated position. At this point, the first set of rollers stops conveying and waits for sewing. The sewing mechanism is used to roll and sew the head and tail of the material at the designated position.

[0006] Preferably, it also includes an AGV trolley and a guide trolley for discharging the belt layer rubber material; the AGV trolley is used to transport the guide trolley that is empty and to transport the next guide trolley carrying the belt layer rubber material to the position that connects with the conveying start end of the conveying platform.

[0007] Preferably, the guide trolley is equipped with a material roll device, a guide device, and a peeling device. The material roll device is used to load the belt layer material roll, the guide device is used to transport the material roll of the belt layer to the peeling device, and the peeling device is used to peel the belt layer adhesive from the lining of the belt layer material roll. The discharge end of the peeling device is connected to the conveying start end of the conveying platform.

[0008] Preferably, the conveying platform includes a support frame and a conveyor belt. The support frame is equipped with an active roller and a passive roller, and the conveyor belt is fitted onto the active roller and the passive roller to realize the conveying function.

[0009] Preferably, one end of the support frame corresponding to the conveying tail end of the conveying platform is hinged to the roller bracket, the other end of the support frame is a free end, and a driver is provided between the support frame and the roller bracket for driving the free end of the support frame to swing around its hinged end.

[0010] Preferably, the driver is a linear drive cylinder, one end of which is connected to the roller bracket, and the other end of which is connected to the support frame.

[0011] Preferably, an electromagnet is provided below the conveyor belt. The electromagnet is used to generate an attractive force on the steel wires in the belt layer rubber material located on the conveyor belt so that the belt layer rubber material is tightly attached to the conveyor belt, and the electromagnet is arranged near the beginning of the conveying process of the conveying platform.

[0012] Preferably, a universal roller for generating roller pressure on the belt layer rubber material on the conveyor belt is also provided above the support frame, and the universal roller is arranged close to the conveying tail end of the conveying platform.

[0013] Preferably, the roller support is further provided with a centering component, which includes a universal roller group and a guide component; the universal roller group is used to receive the conveying tail end of the conveying platform and the beginning end of the first set of rollers; the guide component is located on both sides of the universal roller group to guide and center the belt layer rubber material.

[0014] Preferably, the sewing mechanism includes a support body disposed above the roller support, a horizontal drive mechanism disposed on the support body and along the splice seam between the material head and the material tail, a telescopic mechanism disposed on the moving part of the horizontal drive mechanism and arranged vertically, and a sewing roller tooth disposed at the telescopic end of the telescopic mechanism; the sewing roller tooth includes two symmetrically inclined meshing face gears.

[0015] Compared to the background technology description, the aforementioned automatic feeding device for the belt layer includes a conveying platform and a roller mill unit. The conveying platform is used to transport the head of the belt layer rubber compound to the roller mill unit. The roller mill unit includes a roller support, a sewing mechanism mounted on the roller support, and a material end sensor for detecting whether a head or tail of material has passed by. The roller support is equipped with a first set of rollers and a second set of rollers arranged in a straight line and capable of independent driving. The beginning of the first set of rollers is connected to the end of the conveying platform, and the end of the first set of rollers is connected to the end of the second set of rollers. At the beginning of the connection, the material end sensor is located above the first set of rollers. When the material end sensor detects the tail of the belt layer roll, both the first and second sets of rollers continue to convey until the tail reaches the designated position on the second set of rollers. At this point, the second set of rollers stops conveying and waits for the next material. When the material end sensor detects the head of the belt layer roll, the first set of rollers continues to convey until the head also reaches the designated position. At this point, the first set of rollers stops conveying and waits for the sewing. The sewing mechanism is used to roll and sew the head and tail of the material at the designated positions. In practical application, this automatic belt layer feeding device transports the head of the belt layer material to the roller mill unit via a conveyor platform. Since the first and second sets of rollers on the roller mill unit are driven independently, when the material end sensor detects the tail of the belt layer roll, both the first and second sets of rollers continue conveying until the tail reaches a designated position on the second set of rollers, at which point the second set of rollers stops conveying and waits for feeding. When the material end sensor detects the head of the belt layer roll, the first set of rollers continues conveying until the head also reaches the designated position, at which point the first set of rollers stops conveying and waits for sewing. At this point, the sewing mechanism is controlled to roll and sew the head and tail of the material at the designated position. Then, the first and second sets of rollers are simultaneously activated, thus achieving the feeding operation. The entire process of this automatic belt layer feeding device is mainly completed by the automatic feeding device itself, greatly shortening the belt layer feeding time and consequently reducing the overall machine downtime, significantly improving automation and production efficiency. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the overall appearance structure of the automatic feeding device for the belt layer provided in an embodiment of the present invention;

[0018] Figure 2This is a side view structural schematic diagram of the automatic feeding device for the belt layer provided in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the conveying platform and centering component provided in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the stitching mechanism provided in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the arrangement structure of the first group of rollers and the second group of rollers provided in an embodiment of the present invention.

[0022] superior Figures 1-5 middle,

[0023] 1. Guide trolley, 11. Photoelectric switch assembly, 2. Conveying platform, 21. Support frame, 21a. Active roller, 21b. Passive roller, 22. Conveyor belt, 23. Driver, 24. Electromagnet, 25. Universal roller, 3. Roller unit, 31. Roller bracket, 32. First row of rollers, 33. Second row of rollers, 34. Sewing mechanism, 34a. Horizontal drive mechanism, 34b. Telescopic mechanism, 34c. Sewing toothed roller, 34d. Material end sensor, 35. Centering assembly, 36. Universal roller group, 36a. Guide component, 36b. Cutting assembly, 4. Detailed Implementation

[0024] The core of this invention is to provide an automatic belt layer feeding device to solve the problem of belt layer feeding affecting production efficiency during tire molding.

[0025] To enable those skilled in the art to better understand the technical solutions provided by this invention, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0026] like Figures 1-5As shown, this embodiment of the invention provides an automatic feeding device for a belt layer, including a conveying platform 2 and a roller mill 3. The conveying platform 2 is used to convey the head of the belt layer rubber material to the roller mill 3. The roller mill 3 includes a roller support 31, a sewing mechanism 34 disposed on the roller support 31, and a material end sensor 35 for detecting whether a head or tail of material has passed by. The roller support 31 is provided with a first group of rollers 32 and a second group of rollers 33 arranged in a straight line and driven independently of each other. The beginning of the first group of rollers 32 is connected to the conveying end of the conveying platform 2, and the end of the first group of rollers 32 is connected to the second group of rollers. At the beginning of the connection of 33, the material end sensor 35 is located above the first set of rollers 32. When the material end sensor 35 detects the tail of the belt layer roll, both the first set of rollers 32 and the second set of rollers 33 continue to convey until the tail of the material reaches the designated position on the second set of rollers 33. At this time, the second set of rollers 33 stops conveying and waits for the next material. When the material end sensor 35 detects the head of the belt layer roll, the first set of rollers 32 continues to convey until the head of the material also reaches the designated position. At this time, the first set of rollers stops conveying and waits for the sewing. The sewing mechanism 34 is used to perform rolling and sewing on the head and tail of the material at the designated position.

[0027] In practical application, this automatic belt layer feeding device transports the head of the belt layer material to the roller mill unit via a conveyor platform. Since the first and second sets of rollers on the roller mill unit are driven independently, when the material end sensor detects the tail of the belt layer roll, both the first and second sets of rollers continue conveying until the tail reaches a designated position on the second set of rollers, at which point the second set of rollers stops conveying and waits for feeding. When the material end sensor detects the head of the belt layer roll, the first set of rollers continues conveying until the head also reaches the designated position, at which point the first set of rollers stops conveying and waits for sewing. At this point, the sewing mechanism is controlled to roll and sew the head and tail of the material at the designated position. Then, the first and second sets of rollers are simultaneously activated, thus achieving the feeding operation. The entire process of this automatic belt layer feeding device is mainly completed by the automatic feeding device itself, greatly shortening the belt layer feeding time and consequently reducing the overall machine downtime, significantly improving automation and production efficiency.

[0028] It should be noted that the method for determining whether the material tail has reached the designated position on the second set of rollers can be determined by the material end sensor detecting the material tail of the belt layer roll, and then the first and second sets of rollers continuing to convey the material for a preset distance or preset time. Similarly, the method for determining whether the material head has reached the designated position on the second set of rollers can be determined by the material end sensor detecting the material head of the belt layer roll, and then the first set of rollers continuing to convey the material for a preset distance or preset time. When both the material head and tail reach the designated positions, it is assumed that the material head and tail have been matched. It should be noted that the material end sensor can be an optical fiber assembly or other types of sensors commonly used by those skilled in the art. For example, if a scanner detects that the belt layer material changes from present to absent, it is considered that the material tail has passed; if the scanner detects that the belt layer material changes from absent to present, it is considered that the material head has passed. No further specific limitations are made here, as long as the detection of the material head and tail can be achieved.

[0029] In some specific implementations, the automatic belt layer feeding device may further include an AGV trolley and a guide trolley 1 for discharging the belt layer material. The AGV trolley is used to transport the guide trolley 1 when it is empty and to transport the next guide trolley 1 loaded with belt layer material to the position connecting with the conveying start end of the conveying platform 2. When the guide trolley on the belt layer feeding device is empty, the AGV trolley will automatically transport the empty guide trolley away and transport the next guide trolley loaded with the belt layer material to the corresponding position on the belt layer feeding device, that is, the position connecting with the conveying start end of the conveying platform. Then, the belt layer material is discharged to the conveying start end of the conveying platform through the guide trolley, and the conveying platform conveys the head of the belt layer material to the roller mill unit. By using AGV trolleys and matching them with guide trolleys that have guide belt layers for the rubber material, the manual handling of material transfer trolleys is avoided. The entire operation can be automated, greatly improving the level of intelligence and helping to improve work efficiency.

[0030] It should be noted that the AGV (Automated Guided Vehicle) is an intelligent transport vehicle, belonging to existing technology, and will not be described in more detail here. The AGV is controlled by the control system of the automatic feeding device. When the belt layer material on the guide trolley of the belt layer feeding equipment is emptied, the AGV is controlled to move the guide trolley away and transport a new guide trolley carrying belt layer material to the required position on the belt layer feeding equipment. The guide trolley can be equipped with a corresponding photoelectric switch assembly 11, which can monitor whether the material on the guide trolley is emptied.

[0031] In some specific implementations, the aforementioned guide trolley 1 specifically realizes the structural form of guiding the belt layer adhesive material. The guide trolley may be equipped with a material roll device, a guiding device, and a peeling device. The material roll device is used to load the belt layer material roll, the guiding device is used to transport the material roll to the peeling device, and the peeling device is used to peel the belt layer adhesive material from the backing fabric. The discharge end of the peeling device is connected to the conveying start end of the conveying platform 2. It is understood that the above is merely a specific example of the guide trolley structure in this invention. In actual applications, other structural forms commonly used by those skilled in the art can also be adopted, which will not be described in more detail here.

[0032] In some specific implementations, the structure of the aforementioned conveying platform 2 may include a support frame 21 and a conveyor belt 22. The support frame 21 is equipped with a drive roller 21a and a driven roller 21b, and the conveyor belt 22 is fitted onto the drive roller 21a and the driven roller 21b to achieve the conveying function. The drive roller is connected to a drive motor to realize the conveying function of the conveyor belt. It is understood that the above-described structure of the support frame and conveyor belt is merely a preferred example of an embodiment of the present invention. In actual applications, it can also be other conveying platforms commonly used by those skilled in the art, such as a conveying platform formed by multiple closely arranged rollers, etc., without further specific limitations.

[0033] In a further embodiment, one end of the support frame 21 corresponding to the conveying tail end of the conveying platform 2 is hinged to the roller bracket 31, and the other end of the support frame 21 is a free end. A driver 23 is provided between the support frame 21 and the roller bracket 31 to drive the free end of the support frame 21 to swing around its hinged end. When material needs to be added, the driver drives the support frame to swing so that the free end of the support frame receives and conveys the material head out of the guide trolley until the material head and material tail are sewn together. After the sewing is completed, the driver drives the support frame to swing down to a low position, and then a gap area is formed between the guide trolley and the roller unit. The belt layer rubber material forms a storage pocket in this gap area, and the belt layer rubber material is normally conveyed and fed. This storage pocket can form a buffer for the conveying of the belt layer rubber material and avoid the belt layer rubber material from having excessive tension. Specifically, the actuator can be a linear drive cylinder, such as a pneumatic cylinder or a hydraulic cylinder. One end of the linear drive cylinder is connected to the roller support 31, and the other end is connected to the support frame 21. It is understood that the use of a linear drive cylinder as the actuator is merely a preferred example of this embodiment. In practical applications, other linear drive mechanisms commonly used by those skilled in the art can also be employed, such as a motor-driven lead screw, or a servo motor-driven articulated shaft, etc., without specific limitations.

[0034] In some specific implementations, an electromagnet 24 may also be installed below the conveyor belt 22. The electromagnet 24 is used to generate an attractive force on the steel wires within the belt layer rubber material located on the conveyor belt 22, so that the belt layer rubber material adheres tightly to the conveyor belt 22, and the electromagnet 24 is arranged near the beginning of the conveying process of the conveying platform 2. By installing the electromagnet, the belt layer rubber material can be conveyed forward while adhering tightly to the conveyor belt, ensuring the smoothness of the belt layer rubber material conveying.

[0035] In a further embodiment, a universal roller 25 is also provided above the support frame 21 to generate roller pressure on the belt layer rubber material on the conveyor belt 22, and the universal roller 25 is arranged close to the conveying tail end of the conveying platform 2. By arranging the universal roller, roller pressure can be generated on the belt layer rubber material on the conveyor belt, further improving the stability of the conveying and avoiding local wrinkles when the belt layer rubber material enters the roller unit. It should be noted that the specific structure of the universal roller is that several universal wheels are arranged in sequence on the roller body, so that the belt layer rubber material can swing freely left and right during the conveying process, which facilitates the left and right displacement of the belt layer rubber material during correction.

[0036] In some specific implementations, a centering assembly 36 may also be provided on the roller support 31. The centering assembly 36 includes a universal roller group 36a and a guide component 36b. The universal roller group 36a is used to receive the tail end of the conveying platform 2 and the beginning end of the first set of rollers 32. The guide component 36b is located on both sides of the universal roller group 36a to guide and center the belt layer rubber material. By setting the universal roller group, it is easier to change the direction of the belt layer rubber material during the conveying process. At the same time, the guide component guides the belt layer rubber material, making the splicing more accurate when the material head and tail are joined and sewn. It should be noted that the universal roller group refers to a conveying roller group composed of multiple universal rollers arranged in parallel.

[0037] In some more specific embodiments, the aforementioned sewing mechanism 34 may specifically include a support body 34a disposed above the roller support 31, a horizontal drive mechanism 34b disposed on the support body 34a and along the splice seam between the material head and tail, a telescopic mechanism 34c disposed on the moving part of the horizontal drive mechanism 34b and arranged vertically, and a sewing roller 34d disposed at the telescopic end of the telescopic mechanism 34c; the sewing roller 34d includes two symmetrically inclined meshing face gears, the tooth shape of which is similar to the chain tooth structure on a zipper, and has a gathering and converging force. During the sewing process, the telescopic mechanism drives the sewing roller to press against the splice seam between the material head and tail, and then the horizontal drive mechanism drives the sewing roller to roll back and forth along the splice seam to achieve the sewing of the two. It should be noted that those skilled in the art should understand that the belt layer rubber material itself has strong adhesion, and the two can be bonded and sewn by rolling the joint between the material head and tail.

[0038] The automatic feeding device for the belt layer provided by the present invention has been described in detail above. It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0039] It should also be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the article or device that includes the aforementioned element.

[0040] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An automatic feeding device for belt layers, characterized in that, Includes a conveyor platform (2) and a roller mill unit (3); The conveying platform (2) is used to convey the head of the belt layer rubber material to the roller mill (3). The roller mill unit (3) includes a roller support (31), a sewing mechanism (34) mounted on the roller support (31), and a material end sensor (35) for detecting whether a material head or tail has passed by. The roller support (31) is provided with a first set of rollers (32) and a second set of rollers (33) arranged in a straight line and capable of independent driving. The beginning of the first set of rollers (32) is connected to the conveying tail end of the conveying platform (2), and the end of the first set of rollers (32) is connected to the beginning of the second set of rollers (33). The material end sensor (35) is located above the first set of rollers (32), and... When the material end sensor (35) detects the tail of the belt layer roll, both the first set of rollers (32) and the second set of rollers (33) continue to convey until the tail of the roll reaches the designated position on the second set of rollers (33), at which point the second set of rollers (33) stops conveying and waits for the next material to be conveyed; when the material end sensor (35) detects the head of the belt layer roll, the first set of rollers (32) continues to convey until the head of the roll also reaches the designated position, at which point the first set of rollers stops conveying and waits for the next material to be sewn; the sewing mechanism (34) is used to roll and sew the head and tail of the roll at the designated position; The conveying platform (2) includes a support frame (21) and a conveyor belt (22). An electromagnet (24) is provided below the conveyor belt (22). The electromagnet (24) is used to generate attraction force on the steel wire in the belt layer rubber material on the conveyor belt (22) so that the belt layer rubber material is tightly attached to the conveyor belt (22). The electromagnet (24) is arranged near the beginning of the conveying of the conveying platform (2). A universal roller (25) is also provided above the support frame (21) to generate roller pressure on the belt layer rubber material on the conveyor belt (22). The universal roller (25) is arranged near the end of the conveying of the conveying platform (2).

2. The automatic feeding device for the belt layer as described in claim 1, characterized in that, It also includes an AGV trolley and a guide trolley (1) for discharging the belt layer rubber material; the AGV trolley is used to transport the guide trolley (1) that is empty and to transport the next guide trolley (1) carrying the belt layer rubber material to the position that connects with the conveying start end of the conveying platform (2).

3. The automatic feeding device for the belt layer as described in claim 2, characterized in that, The guide trolley (1) is equipped with a roll device, a guide device and a peeling device. The roll device is used to load the belt layer roll, the guide device is used to transport the belt of the belt layer roll to the peeling device, and the peeling device is used to peel the belt layer adhesive from the lining of the belt layer roll. The discharge end of the peeling device is connected to the conveying start end of the conveying platform (2).

4. The automatic feeding device for the belt layer as described in claim 1, characterized in that, The support frame (21) is provided with an active roller (21a) and a passive roller (21b), and the conveyor belt (22) is fitted on the active roller (21a) and the passive roller (21b) to realize the conveying function.

5. The automatic feeding device for the belt layer as described in claim 4, characterized in that, The support frame (21) is hinged to the roller bracket (31) at one end corresponding to the conveying tail end of the conveying platform (2), and the other end of the support frame (21) is a free end. A driver (23) is provided between the support frame (21) and the roller bracket (31) to drive the free end of the support frame (21) to swing around its hinge end.

6. The automatic feeding device for the belt layer as described in claim 5, characterized in that, The driver (23) is a linear drive cylinder. One end of the linear drive cylinder is connected to the roller bracket (31), and the other end of the linear drive cylinder is connected to the support frame (21).

7. The automatic feeding device for the belt layer as described in claim 1, characterized in that, The roller support (31) is also provided with a centering component (36), which includes a universal roller group (36a) and a guide component (36b). The universal roller group (36a) is used to receive the conveying tail end of the conveying platform (2) and the beginning end of the first set of rollers (32). The guide component (36b) is located on both sides of the universal roller group (36a) to guide and center the belt layer rubber material.

8. The automatic feeding device for the belt layer as described in any one of claims 1-7, characterized in that, The sewing mechanism (34) includes a support body (34a) disposed above the roller support (31), a horizontal drive mechanism (34b) disposed on the support body (34a) and along the splice seam between the material head and the material tail, a telescopic mechanism (34c) disposed on the moving part of the horizontal drive mechanism (34b) and arranged vertically, and a sewing gear (34d) disposed at the telescopic end of the telescopic mechanism (34c); the sewing gear (34d) includes two symmetrically inclined meshing face gears.

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