Tire tread pricking device
By designing a tire tread puncture device, a lifting drive mechanism and support arm are used to drive the puncture roller to rise and fall, achieving automatic puncture. This solves the problem of low efficiency in traditional puncture methods, improves puncture quality and production efficiency, and reduces manual labor intensity and product scrap rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional tire puncture methods are inefficient, make it difficult to guarantee the depth and density of the punctures, increase the labor intensity of workers, and increase the risk of product scrap.
Design a tire tread puncture device that uses a lifting drive mechanism to drive the support arm and puncture roller to rise and fall, and cooperates with the rotation of the forming drum to achieve automatic puncture, avoiding manual operation.
It improves piercing efficiency, ensures the stability of piercing depth and density, and reduces manual labor intensity and product scrap rate.
Smart Images
Figure CN223981911U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to tire production and manufacturing equipment field, specifically relates to a tire tread eyeletting device. BACKGROUND
[0002] With the rapid development of automobile industry, people's demand for travel is growing, and the demand for tires is also increasing year by year. In order to meet the growing market demand, tire manufacturing enterprises need to continuously improve production efficiency while ensuring product quality. In the manufacturing process of tires, forming is a key step, which determines the final shape and size of the tire.
[0003] In the tire forming section, various components of the tire (such as tread, cord layer, air tight layer, etc.) are combined and fixed together to form a complete tire structure. In the tire forming manufacturing process, tire eyeletting is an important process operation. The main purpose of this step is to form an exhaust channel inside the tire, so that the gas inside the tire can be exhausted during the subsequent vulcanization process. By eyeletting, it can ensure that the internal gas of the tire can escape smoothly during vulcanization, avoiding the formation of bubbles or high pressure areas inside the tire, thereby improving the quality and safety of the tire.
[0004] The traditional eyeletting method requires workers to hold the eyeletting device and rotate the tire while manually eyeletting it. Not only is it inefficient, but it may also be difficult to ensure that the eyeletting depth and density meet the requirements, resulting in defects. For example, if the eyeletting density is not enough, the bubbles in the tread are not eyeletted, which prevents the gas from being exhausted, causing the tire to bulge after vulcanization, thereby causing the tire to be scrapped. If the eyeletting depth is too deep, it may pierce the inner liner, causing the tire to leak after vulcanization, thereby causing the tire to be scrapped. This traditional eyeletting method not only has low efficiency, but also cannot ensure that the eyeletting depth and density meet the requirements, and also increases the labor intensity of workers and the risk of product scrap. UTILITY MODEL CONTENTS
[0005] To solve the above problems, the utility model provides a tire tread eyeletting device.
[0006] The utility model discloses a kind of tire tread eyeletting devices, including base 1, support arm 2 is arranged on base 1, support arm 2 one end is rotatably connected to base 1, support arm 2 other end is rotatably connected to thorn roller 4, thorn roller 4 is arranged along the circumference interval needle, lifting drive mechanism is arranged on base 1, lifting drive mechanism is used to drive support arm 2 other end lifting.
[0007] Further, the base 1 comprises two side plates, the rear end between the two side plates is rotationally connected to the rear end of the support arm 2 through the pin shaft 3, the two side plates are respectively provided with the upwardly open U-shaped groove 10, the lifting driving mechanism comprises the air cylinder 7, the base 1 is fixedly connected to the mounting seat 8, the cylinder base of the air cylinder 7 is fixedly connected to the mounting seat 8, the piston rod 9 of the air cylinder 7 is fixedly connected to the top block 6, the two ends of the top block 6 respectively pass through the U-shaped grooves 10 on the two side plates, and the top of the top block 6 is lifted by abutting against the bottom of the support arm 2.
[0008] Further, the base 1 is two, the support arm 2 is two, and the two support arms 2 are symmetrically arranged on the two sides of the licker-in 4; the licker-in 4 is coaxially rotationally connected to the support shaft 5, and the two ends of the support shaft 5 are fixed to the front ends of the two support arms 2.
[0009] Further, the licker-in 4 is coaxially arranged 5~15 circles along the licker-in 4, and 10~25 licker-in needles are arranged along the circumference of the licker-in 4 in each circle, and the included angle between the licker-in needles is 15°~30°.
[0010] Compared with the prior art, the lifting driving mechanism is used to drive the support arm to lift, and then drives the licker-in to lift, so that when the tire is on the forming drum and rotates with the forming drum in the existing production process, the licker-in rotates together to realize the eyeletting work, without the need for traditional manual eyeletting mode, and without the need for additional tire clamps or fixing devices, thereby improving the work efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0012] Figure 2 It is a front view of the utility model.
[0013] Figure 3 It is a top view of the utility model.
[0014] Figure 4 It is a schematic diagram of the licker-in of the utility model, wherein Figure 4 .1 is a front view, Figure 4 .2 is a side view, Figure 4 .3 is a perspective view.
[0015] Among them, the base 1, the support arm 2, the pin shaft 3, the licker-in 4, the support shaft 5, the top block 6, the air cylinder 7, the mounting seat 8, the piston rod 9, the U-shaped groove 10. DETAILED DESCRIPTION
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0018] As attached Figures 1-3 As shown, a tire tread puncture device includes a base 1, a support arm 2 on the base 1, one end of the support arm 2 is rotatably connected to the base 1, and the other end of the support arm 2 is rotatably connected to a puncture roller 4. The puncture roller 4 is provided with puncture needles spaced apart in the circumferential direction. A lifting drive mechanism is provided on the base 1, which is used to drive the other end of the support arm 2 to rise and fall.
[0019] Furthermore, the base 1 includes two side plates, preferably with legs extending from both sides to the ground and fixed to the ground with anchor bolts. The rear ends of the two side plates are rotatably connected to the rear ends of the support arm 2 via pins 3. The pins 3 pass through the through holes reserved on the support arm 2 and the base 1, connecting the support arm 2 and the base 1. The pins 3 and the base 1 are interference-fitted to ensure that the pins 3 will not fall off due to vibration or other reasons during use, thus affecting the working efficiency of the device. The diameter of the through hole of the support arm 2 is larger than the diameter of the pin 3, and grease is applied between the through hole and the pin 3 to ensure that the support arm 2 swings smoothly and does not generate friction, thus affecting the working efficiency. The support arm 2 is preferably a square frame structure, which is lighter. The middle of the two side plates is provided with U-shaped grooves 10 that open upwards. The lifting drive mechanism includes a cylinder 7, a mounting plate fixed between the two side plates in the base 1, a mounting seat 8 fixedly connected to the top of the mounting plate, a cylinder seat of the cylinder 7 fixedly connected to the mounting seat 8, and a piston rod 9 of the cylinder 7 fixedly connected to a top block 6. The two ends of the top block 6 pass through the U-shaped grooves 10 on the two side plates respectively. The top of the top block 6 moves up and down by abutting the bottom of the support arm 2. As the top block 6 rises, one end of the support arm 2 swings upward, and the top block 6 slides on the bottom surface of the support arm 2. When the piston rod 9 extends, the top block 6 lifts the support arm 2, causing the support arm 2 to swing up and down. When the piston rod 9 retracts, the top block 6 retracts with the piston rod 9. After retraction, the top block 6 is located in the U-shaped groove 10 on the base 1, ensuring that the top block 6 and the base 1 do not interfere with each other.
[0020] Furthermore, the entire machine needs to be installed below the tire forming drum in the existing technology. There are two bases 1 and two corresponding support arms 2. When installing the two bases 1, they should be aligned front to back. The two support arms 2 are symmetrically arranged on both sides of the spiked roller 4. The spiked roller 4 is coaxially connected to the support shaft 5. The two ends of the support shaft 5 are respectively fixed to the front ends of the two support arms 2. The spiked roller 4 is located between the two support arms 2. There should also be a deep groove ball bearing between the spiked roller 4 and the support shaft 5 to ensure that the spiked roller 4 rotates smoothly. A work position is left between the two bases 1 so that the forming drum and the tire on the forming drum can be manually adjusted.
[0021] Furthermore, the barbed needles are arranged in 5 to 15 rings along the 4-axis of the barbed roller, with 10 to 25 barbed needles arranged in each ring along the 4-circumference of the barbed roller. The included angle between the barbed needles is 15° to 30°. A preferred embodiment is as follows: Figure 4 As shown, nine rings of needles are set up, with needles arranged in a circular array at 30-degree intervals in each ring, and there are 12 needles in each ring.
[0022] It should be noted that the forming drum is a piece of equipment used in tire production and is existing technology. This utility model does not improve this component, but only places the eye-piercing device below the forming drum.
[0023] In practice, firstly, by supplying air pressure to cylinder 7, its piston rod 9 is driven to extend upwards. The top block 6 at the end of piston rod 9 rises accordingly, applying an upward thrust to the lower end of support arm 2. Under this thrust, support arm 2 swings around pin 3. As support arm 2 swings out, the top block 6 continues to rise and slides relative to the bottom surface of support arm 2. Pin 3 serves as a fixed point for the rotation of support arm 2, ensuring the stability and accuracy of support arm 2 during the swinging process.
[0024] Meanwhile, the support shaft 5, as a key component connecting the support arm 2 and the spiked roller 4, rises synchronously with the swinging of the two support arms 2. The spiked roller 4 is connected to the support shaft 5 through a connector, and therefore also rises with the support shaft 5 until it reaches the preset height and contacts the tire surface.
[0025] After the puncturing roller 4 contacts the tire, it drives the forming drum to rotate at a certain speed. The tire generates rotational inertia under the drive of the forming drum, and the puncturing roller 4 rotates synchronously with the tire due to its rotation. During the rotation, the needles on the puncturing roller 4 puncture the tire at a certain interval and depth to meet the process requirements of tire manufacturing.
[0026] After the piercing operation is completed, the piston rod 9 of cylinder 7 begins to retract, and the top block 6 descends, releasing the thrust on the support arm 2. After losing thrust, the support arm 2 swings counterclockwise around the pin 3, gradually returning to its initial position. Simultaneously, the support shaft 5 and the piercing roller 4 also return to their initial state along with the support arm 2, preparing for the next piercing operation.
[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.
Claims
1. A tire tread puncture device, characterized by: The base (1) is provided with a support arm (2), one end of the support arm (2) is rotatably connected to the base (1), the other end of the support arm (2) is rotatably connected to a licker-in roller (4), the licker-in roller (4) is provided with licker-in needles at intervals in the circumferential direction, a lifting driving mechanism is arranged on the base (1) and is used to drive the other end of the support arm (2) to lift.
2. A tire tread puncture device as defined in claim 1 wherein: The base (1) comprises two side plates, the rear ends of the two side plates are rotatably connected to the rear ends of the support arms (2) through a pin shaft (3), the two side plates are respectively provided with an upwardly open U-shaped groove (10), the lifting driving mechanism comprises a cylinder (7), the base (1) is fixedly connected with a mounting seat (8) inside, the cylinder (7) is fixedly connected with the mounting seat (8), the piston rod (9) of the cylinder (7) is fixedly connected with a top block (6), the two ends of the top block (6) pass through the U-shaped grooves (10) on the two side plates respectively, and the top block (6) is lifted by abutting against the bottom of the support arm (2).
3. A tyre tread puncture device as claimed in claim 2, wherein: The base (1) is two, the support arm (2) is two, the two support arms (2) are symmetrically arranged on the two sides of the licker-in roller (4), the licker-in roller (4) is coaxially rotatably connected to a support shaft (5), and the two ends of the support shaft (5) are fixedly connected to the front ends of the two support arms (2).
4. A tire tread puncture device as defined in claim 1 wherein: The licker-in needles are arranged at 5-15 circles in the axial direction of the licker-in roller (4), 10-25 licker-in needles are arranged in each circle in the circumferential direction of the licker-in roller (4), and the included angle between the licker-in needles is 15°-30°.