A liner stripping press roll device for a forming machine

Abstract

The utility model provides a kind of lining stripping pressure roller device for forming machine. The device is arranged in the forming machine guide opening station, including support, driving mechanism and pressure roller. The support is fixed to the main frame of forming machine, the driving mechanism is installed on the support, and the pressure roller is connected with the output end of driving mechanism and can be lifted and moved. The pressure roller includes pressure roller body, and when it is lowered to working position, it is pressed on the upper surface of the inner lining layer on the stripping roller of guide opening trolley. The utility model solves the sticking problem when high-viscosity thin inner lining layer and lining cloth are automatically guided to open, and has the advantages of good stripping effect, high degree of automation and compact structure.

Description

Technical Field

[0001] This utility model relates to the field of tire manufacturing equipment technology, specifically to an inner liner guiding auxiliary device for a tire forming machine, and in particular an inner liner peeling roller device that can effectively peel off a high-viscosity inner liner from its lining. Background Technology

[0002] In tire manufacturing, the inner liner, as the innermost sealing material, requires excellent sealing and adhesion properties. In recent years, the inner liner process has been changed from a double-layer to a single-layer butyl rubber layer, resulting in a thinner inner liner (approximately 1mm) and stronger adhesion. This change has led to severe adhesion between the inner liner and the lining fabric on the winding carriage at the forming machine's guide station.

[0003] Operators typically employ temporary measures, such as arbitrarily pressing a roller onto the idler roller of the inner liner winding carriage, or placing the roller inside the carriage. While these methods can partially alleviate adhesion, they have several drawbacks: the weight, size, and material of the pressure roller lack standards, resulting in inconsistent effectiveness; the inner liner easily adheres to the roller surface, often requiring the wrapping of unsightly and frequently replaced anti-sticking materials such as medical tape; improper installation locations affect normal equipment operation; and automated linkage control is impossible, increasing the operator's workload. When these temporary rollers are removed, the inner liner, due to adhesion to the lining fabric, cannot be smoothly guided away and often rolls towards the large I-beam roller, causing production interruptions and impacting product quality and production efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a lining peeling roller device with reasonable structure, good peeling effect and high degree of automation, so as to solve the technical problem that the high viscosity and thin lining layer cannot be reliably and automatically separated from the lining cloth during the opening process.

[0005] This utility model is achieved using the following technical solution:

[0006] A liner peeling pressure roller device for a molding machine is set at the molding machine guide station. The molding machine guide station is equipped with a liner guide trolley. The guide trolley is equipped with a material roll for unwinding the liner and lining composite, a lining roll for winding the peeled lining, and a support roller for changing the guide direction of the liner.

[0007] The separated inner lining layer is pulled forward by traction rollers and conveyed to the forming machine; the separated lining fabric is wound onto the lining fabric roll; the pressure roller device includes:

[0008] The bracket is fixedly installed on the frame of the molding machine;

[0009] The drive mechanism is mounted on the bracket;

[0010] The pressure roller is connected to the output end of the drive mechanism and is driven by it to perform lifting and lowering movements;

[0011] The pressure roller includes a pressure roller body. When the driving mechanism drives the pressure roller to descend to the working position, the pressure roller body presses against the upper surface of the inner lining layer on the support roller, thereby forming a stable peeling point at that location to achieve reliable linear peeling between the inner lining layer and the lining fabric.

[0012] Furthermore, the weight of the pressure roller body is 4 ± 0.5 kg.

[0013] This weight range is the result of multiple rounds of testing and optimization. It can provide sufficient downforce to overcome the adhesion between the liner and the lining while avoiding excessive stretching or permanent deformation of the liner, which is only about 1 mm thick, due to excessive pressure. This ensures the peeling effect while protecting the integrity of the material.

[0014] Furthermore, the material of the pressure roller body is a lightweight non-metallic material, preferably nylon. While meeting the 4 kg weight requirement, lightweight non-metallic materials such as nylon can be processed into pressure rollers of the required size (150 mm in diameter), while possessing sufficient strength and wear resistance, ensuring the service life and reliability of the device.

[0015] Furthermore, the pressure roller body has a rough outer surface, preferably formed by shot peening to create uniformly distributed micro-pits on the nylon surface. The micro-rough surface formed by shot peening greatly reduces the actual contact area between the pressure roller and the highly viscous inner liner, fundamentally solving the problem of the inner liner sticking to the roller. It replaces the unsightly, non-durable, and frequently replaceable medical adhesive tape, achieving durable and efficient anti-sticking.

[0016] Furthermore, the driving mechanism is a cylinder.

[0017] Furthermore, the cylinder is connected to the bracket via an inclined mounting plate, so that the pressure roller has an adjustable tilt angle relative to the horizontal plane when it is in the lower working position.

[0018] Furthermore, the air passage of the cylinder is connected in series with the air passage of the brake airbag of the inner liner guide trolley, so that the lifting and lowering movement of the pressure roller is synchronized with the releasing and clamping action of the brake airbag.

[0019] Furthermore, the pressure roller also includes a rotating shaft, and the pressure roller body is rotatably mounted on the rotating shaft via bearings, and the inner diameter of the pressure roller body is larger than the diameter of the rotating shaft.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. This utility model applies pressure at the peeling point by a pressure roller to create an acute-angle peeling zone, transforming the insurmountable surface adhesion force into a concentrated line peeling force, thereby achieving stable, thorough, and damage-free linear separation between the inner lining layer and the lining fabric.

[0022] 2. This utility model achieves seamless integration with the main production process through pneumatic linkage control, eliminating the need for manual intervention, significantly reducing the labor intensity of operators, and improving production efficiency.

[0023] 3. The peeling device provided by this utility model can adapt to the narrow space of different models and has good versatility.

[0024] 4. This utility model uses a shot-peened nylon pressure roller, which solves the problem of roller sticking, and has a clean appearance and long service life.

[0025] 5. The device provided by this utility model has a simple structure and low manufacturing cost, but can significantly reduce production interruptions and material waste, achieving outstanding economic benefits. Attached Figure Description

[0026] Figures 1-2 A schematic diagram of the inner lining peeling roller device provided by this utility model.

[0027] Explanation of the labels in the diagram:

[0028] 1-Support; 2-Cylinder; 4-Rotating shaft; 5-Pressure roller body; 6-Main frame of forming machine; 9-Support roller; 10-Traction roller. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1 and Figure 2 As shown, the lining peeling roller device of this utility model is installed at the guide station of a one-step molding machine. This station is equipped with an lining guide trolley, on which are mounted a material roll, a lining roll, a support roller 9, and a traction roller 10. The support roller 9 and the traction roller 10 are located at the top of the trolley and are arranged in parallel. The lining with the lining layer attached passes through the support roller 9, and the lining is pulled downwards around the support roller 9 and wound onto the lining roll at the bottom. The lining layer is then conveyed forward to the molding process by the traction roller 10.

[0031] The pressure roller device mainly includes a bracket 1, a cylinder 2, a mounting plate 3, and a pressure roller. The bracket 1 is securely mounted on the main frame 6 of the molding machine with bolts. The cylinder 2 serves as the drive mechanism. To accommodate the limited vertical height of only 250mm between the top of the one-step molding machine and the inner liner guide carriage, the cylinder 2 is connected to the bracket 1 via an adjustable mounting plate. This design allows the entire pressure roller to operate at the optimal tilt angle during descent, effectively avoiding equipment interference, and the tilt angle can be adjusted according to actual working conditions.

[0032] The pressure roller consists of a pressure roller body 5 and a rotating shaft 4. The pressure roller body 5 is made of a lightweight non-metallic material, preferably nylon in this embodiment. Its physical parameters have been rigorously verified and screened: the weight is 4 kg to ensure moderate pressure, which can effectively peel off without damaging the inner lining layer. To prevent the inner lining layer from rolling onto the pressure roller and to ensure full coverage of the inner lining layer, the diameter of the pressure roller body 5 is set to 150 mm and the length is set to 640 mm. To further solve the problem of roller sticking, the outer surface of the nylon pressure roller body 5 is shot-peened to form uniform micro-pits, constituting an anti-sticking rough surface, achieving durable and effective anti-sticking.

[0033] The pressure roller body 5 is rotatably mounted on the rotating shaft 4 via rolling bearings. To ensure that the pressure roller can rotate flexibly while relying solely on its own weight to apply pressure when it descends to its final position, the inner diameter of the pressure roller body 5 differs significantly from the diameter of the rotating shaft 4, for example, 40mm and 16mm respectively. This fit makes the pressure roller a highly efficient driven roller, whose rotation is entirely driven by the friction of the advancing inner liner, requiring no additional power.

[0034] In some alternative embodiments, the pressure roller body includes a first roller and a second roller distributed from left to right. This structure can accommodate inner linings of different widths and provide a more uniform pressure distribution.

[0035] Technical principles and working process:

[0036] When the molding machine completes the replacement of the inner liner, the brake airbag of the inner liner release trolley inflates and tightens. At the same time, the cylinder 2, which is connected in series with the air circuit of the brake airbag, receives a signal, its piston rod extends, and pushes the pressure roller down, so that the pressure roller body 5 presses against the upper surface of the inner liner that passes over the support roller 9.

[0037] The traction roller 10 provides continuous traction, pulling the inner lining forward. The moving inner lining drives the pressure roller body 5 to rotate. During this dynamic process, the 4 kg weight of the pressure roller is converted into a concentrated pressure acting tangentially on the idler roller 9, forcing the inner lining to bend sharply at the curved surface of the idler roller 9, forming a sharp-angled forced peeling zone. This change in physical form successfully transforms and concentrates the large-area adhesion between the inner lining and the lining into a linear peeling force along a peel line, allowing them to separate easily, thoroughly, and stably. The separated inner lining is conveyed to the downstream process, while the lining is reoriented and wound onto the lining roll.

[0038] When the guide opening is complete or a material change is required, the brake airbag deflates and releases, releasing the guide trolley. Simultaneously, the piston rod of cylinder 2 retracts, raising the pressure roller to a high position and removing it from the working area to avoid interference.

[0039] Implementation process:

[0040] The device was first installed on the A01 molding machine and ran continuously for two weeks, demonstrating excellent separation between the inner liner and the lining fabric without any abnormalities. Subsequently, it was rolled out across 15 single-stage molding machines at Chaoyang Company, achieving ideal separation results in all of them, and was simultaneously applied to double-stage molding machines. Due to its simple structure, low cost, and ability to solve major problems, it offers a significant return on investment and is currently being widely implemented. This device fundamentally eliminates production interruptions and material waste caused by adhesion, improving product quality and production efficiency.

[0041] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A liner peeling roller device for a molding machine, characterized in that, It is set at the guiding station of the molding machine. The guiding station of the molding machine is equipped with an inner lining guiding trolley. The guiding trolley is equipped with a material roll for unwinding the inner lining and lining composite, a lining roll for winding the peeled lining, and a roller for changing the guiding direction of the inner lining. The separated inner lining layer is pulled forward by traction rollers and conveyed to the forming machine; the separated lining fabric is wound onto the lining fabric roll; the pressure roller device includes: The bracket is fixedly installed on the frame of the molding machine; The drive mechanism is mounted on the bracket; The pressure roller is connected to the output end of the drive mechanism and is driven by it to perform lifting and lowering movements; The pressure roller includes a pressure roller body. When the driving mechanism drives the pressure roller to descend to the working position, the pressure roller body presses against the upper surface of the inner lining layer on the idler roller, thereby forming a peeling point at that location to achieve linear peeling between the inner lining layer and the lining fabric.

2. The inner lining peeling roller device according to claim 1, characterized in that, The weight of the pressure roller body is 4 ± 0.5 kg.

3. The inner lining peeling roller device according to claim 1, characterized in that, The pressure roller body is made of lightweight non-metallic material.

4. The inner lining peeling roller device according to claim 3, characterized in that, The lightweight non-metallic material is nylon.

5. The liner peeling roller device according to claim 4, characterized in that, The pressure roller body has a rough outer surface.

6. The liner peeling roller device according to claim 4, characterized in that, The nylon surface has pits formed.

7. The inner lining peeling roller device according to claim 1, characterized in that, The driving mechanism is a cylinder.

8. The liner peeling roller device according to claim 7, characterized in that, The cylinder is mounted at an angle on the bracket, so that the pressure roller is tilted relative to the horizontal plane when it is in the lower working position.

9. The liner peeling roller device according to claim 7, characterized in that, The air passage of the cylinder is connected in series with the air passage of the brake airbag of the inner liner guide trolley, so that the lifting and lowering movement of the pressure roller is synchronized with the releasing and clamping action of the brake airbag.

10. The liner peeling roller device according to claim 1, characterized in that, The pressure roller also includes a rotating shaft. The pressure roller body is rotatably mounted on the rotating shaft via bearings, and the inner diameter of the pressure roller body is larger than the diameter of the rotating shaft, so that the pressure roller body can rotate flexibly by its own weight when it is in the lower working position.

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