Hand-held piercing tool for tire production

Abstract

A handheld piercing tool for tire production, comprising a pistol-shaped shell, the shell comprising a holding part and a supporting part, the supporting part comprising a supporting track, the supporting track being provided with a piercing needle capable of sliding along the supporting track, a rotating wheel being rotatably arranged in the shell, an eccentric shaft being fixed on the rotating wheel, one end of a connecting rod being hinged to the eccentric shaft, and the other end of the connecting rod being hinged to a rear end of the piercing needle. Relative to the prior art, the utility model has the technical effects that the utility model is pistol-shaped, convenient for people to hold, and uses mechanical force as a power source, so that people can conveniently perform semi-automatic piercing treatment on a tire blank.

Description

Technical Field

[0001] This utility model belongs to the field of tire manufacturing technology, specifically relating to a handheld puncture tool used in tire manufacturing. Background Technology

[0002] In tire manufacturing, puncturing the tire carcass is a crucial step. The main purpose of this step is to create pores in specific areas of the tire. These pores help expel air from the tire's internal components during production, ensuring the finished product is free of bubbles and guaranteeing the tire's stability and safety under various road conditions and climates. Therefore, the quality of the punctures directly affects the stability of the finished product and is an indispensable key link in the tire production line.

[0003] Currently, tire manufacturing primarily relies on traditional puncture tools and equipment for puncturing tires. These traditional methods have several significant drawbacks and limitations. Firstly, traditional puncture tools are generally inefficient, often requiring operators to spend considerable time and effort manually puncturing tires, which fails to meet the demands of modern tire production lines for high efficiency and speed, severely hindering production efficiency improvements. Secondly, traditional puncture tools suffer from significant deficiencies in precision control, unable to flexibly adjust parameters such as puncture depth based on the actual thickness of the tire blank, material characteristics, and specific production requirements. This results in inconsistent puncture quality, easily leading to uneven pore distribution and varying depths, thus affecting tire consistency and reliability and causing numerous challenges for quality control in enterprises. Utility Model Content

[0004] The technical problem to be solved by this utility model is: how to design a handheld puncture tool for tire production, so as to facilitate semi-automatic puncture processing of tire blanks.

[0005] The specific technical solution of this utility model is as follows:

[0006] A handheld puncture tool for tire production includes a pistol-shaped housing. The housing includes a gripping part and a supporting part. The supporting part includes a support rail. A puncture needle that can slide along the support rail is provided in the support rail. A rotating wheel is rotatably provided in the housing. An eccentric shaft is fixed on the rotating wheel. One end of the eccentric shaft is hinged to a connecting rod. The other end of the connecting rod is hinged to the rear end of the puncture needle.

[0007] The rotating wheel is powered by a gas motor, and the output shaft of the gas motor is fixed to the rotating wheel.

[0008] The other end of the connecting rod is hinged to a tie rod, and a rotatable driven long gear is fitted over the tie rod. The driven long gear fixes the rear end of the rotating eye needle. The rotating wheel is a bevel gear that meshes with the driven bevel gear. The axis of the moving bevel gear is perpendicular to the axis of the rotating wheel. One end of the rotating shaft is fixed, and the other end of the rotating shaft is fixed with a driving short gear. The driving short gear meshes with the driven long gear.

[0009] At least two bearings are provided between the tie rod and the cylindrical gear.

[0010] The eye-piercing needle consists of a handle at the rear end and a needle tip at the front end, with the handle and needle tip being detachably and fixedly connected.

[0011] The gas motor is connected to the gas cylinder through the inlet and outlet, and the gas cylinder is located inside the casing.

[0012] Compared with the prior art, the technical effect of this utility model is that it is pistol-shaped, which is convenient for people to hold, and uses mechanical force as a power source to facilitate semi-automatic puncturing of the embryo. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention.

[0014] Figure 2 This is a schematic diagram of power transmission (I).

[0015] Figure 3 This is a schematic diagram of power transmission (II).

[0016] Figure 4 It is a simplified kinematic diagram of power transmission.

[0017] Figure 5 This is a three-dimensional schematic diagram of the present invention. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1-5 A handheld puncture tool for tire production includes a pistol-shaped housing. The housing includes a gripping part 10 and a support part 20. The support part 20 includes a support rail 21, and a puncture needle 30 that can slide along the support rail 21 is provided therein.

[0020] like Figure 1-3 The housing contains a rotating wheel 42, on which an eccentric shaft 43 is fixed (the rotating wheel 42 can also be called an eccentric wheel). The eccentric shaft 43 is hinged to one end of a connecting rod 44, and the other end of the connecting rod 44 is hinged to the rear end of the eye-piercing needle 30 (the end away from the needle tip).

[0021] like Figure 2For ease of operation, the rotating wheel 42 is powered by a gas motor 40, and the output shaft 41 of the gas motor 40 fixes the rotating wheel 42.

[0022] When performing puncture on the embryo, the movement of the puncture needle 30° should ideally involve both axial insertion and rotational motion to facilitate insertion. Therefore, further improvements are made as follows:

[0023] like Figure 4 The other end of the connecting rod 44 (the end away from the gas motor 40) is hinged to the pull rod 47. The pull rod 47 is fitted with a rotatable passive long gear 49, which fixes the rear end of the rotating eye needle 30 (the end away from the needle tip).

[0024] The rotating wheel 42 is a bevel gear that meshes with the driven bevel gear 50. The axial direction of the driven bevel gear 50 is perpendicular to the axial direction of the rotating wheel 42. One end of the rotating shaft 51 is fixed, and the other end of the rotating shaft 51 is fixed with the driving short gear 52. The driving short gear 52 meshes with the driven long gear 49.

[0025] like Figure 4 To reduce friction, at least two bearings 48 are provided between the tie rod 47 and the cylindrical gear 49.

[0026] like Figure 1-3 The eye-piercing needle 30 includes a needle handle 31 at the rear end and a needle tip 32 at the front end, and the needle handle 31 and the needle tip 32 are detachably and fixedly connected.

[0027] like Figure 2 For easy movement, the gas motor 40 is connected to a gas cylinder (not shown in the figure) through an air inlet 401 and an air outlet 402. The gas cylinder is located inside the housing. A pressure reducing valve and a control valve (not shown in the figure) are provided on the gas line connecting the gas cylinder to the air inlet 401 and the air outlet 402. The pressure reducing valve and the control valve are connected to a controller (not shown in the figure). The controller is connected to an operation panel (not shown in the figure). The operation panel is located on the outer surface of the housing.

[0028] Its working principle is as follows:

[0029] When using it, select a suitable position for the tire blank, align the needle 32 with that position, open the control valve through the operation panel, the gas motor 40 drives the rotating wheel 42 to rotate, the eccentric shaft 43 also rotates synchronously, and rotates through the connecting rod 44. Under the constraint of the support rail 21, the needle handle 31 and the needle 32 reciprocate, and the needle 32 completes the puncture treatment of the tire blank.

[0030] Features of this application:

[0031] S1. This utility model relates to a handheld automatic eye-piercing tool. The needle head rotates via a bevel gear eccentric wheel, which in turn drives a connecting rod in a reciprocating motion. The needle head rotates simultaneously during this reciprocating motion. The core advantage of this utility model lies in its unique design and innovative technological application. This utility model uses compressed air as its power source and connects via a quick-connect plug, making it convenient and efficient. Furthermore, since gasoline is frequently used in tire molding and manufacturing, this utility model produces no electrical sparks, thus offering higher safety and explosion-proof performance.

[0032] S2. The handle is the main part of the tool that the operator holds, and it is made of lightweight, high-strength engineering plastic or aluminum alloy. This material choice balances the tool's lightness and sturdiness, reducing the operator's burden while ensuring the tool's durability during use. The overall design of the handle strictly follows ergonomic principles, fully considering the operator's hand structure and operating habits, allowing the tool to fit comfortably in the palm and be easy to hold for extended periods. During the piercing process, the operator can hold the tool stably and comfortably, effectively reducing piercing deviations caused by tool shaking or unstable grip, thus ensuring the consistency of piercing quality.

[0033] The S3 power system is a high-pressure gas-driven device cleverly integrated into the handheld unit, mainly consisting of a gas cylinder, a pressure reducing valve, and a control valve. The gas cylinder stores high-pressure gas, providing a powerful power source for the piercing needle assembly. The pressure reducing valve finely regulates the gas pressure, ensuring the gas is output at an appropriate pressure, meeting the high-efficiency operation of the piercing needle assembly without damaging the tire tread or affecting piercing accuracy due to excessive pressure. The control valve precisely controls the gas flow, allowing the operator to flexibly start or stop the piercing action, achieving precise control over the piercing process. This high-pressure gas-driven power system not only achieves lightweight and portable design but also offers advantages such as rapid response and stable power, providing a reliable guarantee for efficient piercing operations.

[0034] S4. The puncture needle assembly is the core component for achieving the puncture function, consisting of multiple puncture needles. These needles are made of high-strength alloy steel with a hardened surface, possessing excellent hardness and wear resistance, maintaining sharpness for extended periods to easily penetrate various tire tread materials during puncture. The needle tip is conical and sharp; this unique design helps reduce resistance during puncture, making it smoother and more precise. It also effectively prevents the needle from slipping or shifting on the tire tread, ensuring the accuracy and regularity of the puncture hole's position. Each puncture needle is connected to the power system via a connecting rod equipped with an adjustable eccentric wheel. By cleverly adjusting the position of the eccentric wheel, the operator can flexibly change the amplitude and depth of the puncture needle. This innovative adjustment mechanism allows the tool to quickly adapt to diverse production requirements based on different tire tread thicknesses and material characteristics, thus ensuring the stability and consistency of puncture quality.

[0035] The S5 control system, integrated into the handheld unit, is a key component for automated operation. It includes an operation panel and a controller. The operation panel features start and stop buttons, as well as parameter adjustment knobs, allowing operators to easily control the operation and stop of the piercing tool and flexibly adjust piercing parameters according to actual production needs. The controller has built-in preset programs that automatically adjust piercing parameters, such as piercing spacing and angle, based on different specifications and piercing requirements. This intelligent control system not only significantly reduces operational difficulty but also substantially improves piercing accuracy and efficiency, making piercing operations more standardized and efficient, and effectively reducing the impact of human factors on piercing quality.

[0036] S6. Considering the diverse needs for puncture needles in different tire production scenarios, this invention features a specially designed replaceable puncture needle. Multiple specifications of puncture needles are available, each precision-manufactured for high accuracy and stability. Changing the puncture needle is simple and convenient, similar to changing a drill bit on a power drill. Operators can quickly change the needle without complex tools or specialized skills. This design allows the tool to flexibly handle different puncture requirements, easily meeting the needs of tire treads of varying thicknesses and materials, as well as vent shapes and sizes. This significantly improves the tool's versatility and flexibility, reducing equipment procurement and maintenance costs for enterprises.

[0037] For other details, please refer to the existing technology.

[0038] 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 handheld puncture tool for tire production, comprising a pistol-shaped housing, the housing including a grip (10) and a support (20), the support (20) including a support rail (21), and a puncture needle (30) slidably along the support rail (21), characterized in that: The housing is equipped with a rotating wheel (42), and an eccentric shaft (43) is fixed on the rotating wheel (42). The eccentric shaft (43) is hinged to one end of the connecting rod (44), and the other end of the connecting rod (44) is hinged to the rear end of the eye needle (30).

2. The handheld eyelet tool for tire production as described in claim 1, characterized in that: The rotating wheel (42) is powered by a gas motor (40), and the output shaft (41) of the gas motor (40) is fixed to the rotating wheel (42).

3. The handheld eyelet tool for tire production as described in claim 2, characterized in that: The other end of the connecting rod (44) is hinged to the pull rod (47). The pull rod (47) is fitted with a rotatable passive long gear (49). The passive long gear (49) fixes the rear end of the rotating eye needle (30). The rotating wheel (42) is a bevel gear that meshes with the passive bevel gear (50). The axial direction of the moving bevel gear (50) is perpendicular to the axial direction of the rotating wheel (42). It fixes one end of the rotating shaft (51). The other end of the rotating shaft (51) fixes the driving short gear (52). The driving short gear (52) meshes with the passive long gear (49).

4. The handheld eyelet tool for tire production as described in claim 3, characterized in that: At least two bearings (48) are provided between the tie rod (47) and the cylindrical gear (49).

5. The handheld eyelet tool for tire production as described in claim 4, characterized in that: The eye-piercing needle (30) includes a needle handle (31) at the rear end and a needle tip (32) at the front end, and the needle handle (31) and the needle tip (32) are detachably and fixedly connected.

6. The handheld eyelet tool for tire production as described in claim 5, characterized in that: The gas motor (40) is connected to the gas cylinder through the air inlet (401) and the air outlet (402), and the gas cylinder is located inside the housing.

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