CN211954034U - Detection device for half-steel radial tire body fitting lap joint amount - Google Patents
Detection device for half-steel radial tire body fitting lap joint amount Download PDFInfo
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- CN211954034U CN211954034U CN202020498509.4U CN202020498509U CN211954034U CN 211954034 U CN211954034 U CN 211954034U CN 202020498509 U CN202020498509 U CN 202020498509U CN 211954034 U CN211954034 U CN 211954034U
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Abstract
The utility model relates to the technical field of rubber tire manufacturing, aim at overcoming the judging structure of the overlap joint volume that present tire part connects detection mechanism can't give directly to, and the structure of device is complicated, problem that the processing procedure is complicated, provide a detection device of half steel radial tire matrix laminating overlap joint volume, telescopic cylinder sets up on the connecting plate, sets up the cab apron on telescopic cylinder's the piston rod, sets up two little cylinders on the cab apron, and the piston rod cover of little cylinder has the spring, and the piston rod and the floating plate sliding connection of little cylinder, little cylinder's piston rod stretch out, and the spring is in the compression state below the floating plate; the contact type grating digital displacement sensor is fixedly arranged on the transition plate, a telescopic measuring head of the contact type grating digital displacement sensor is propped against the floating plate, and a measuring wheel is arranged on the floating plate at a position opposite to the telescopic measuring head. The detection device has a simple structure, and can directly give a judgment result of the lap joint quantity.
Description
Technical Field
The utility model relates to a rubber tire makes technical field, concretely relates to detection apparatus of half steel radial tire matrix laminating overlap joint volume.
Background
When the semi-steel radial tire is formed, the tire body cord fabric is attached to the tire body drum, the lap joint amount of the tire body needs to be controlled, the lap joint is too small, the joint strength is insufficient, the risk of cracking exists, the joint amount is too large, the tire can be obviously sunken after being used and inflated, the appearance, the dynamic uniformity performance and the service performance of the tire are influenced, and the width of 3-5 cord threads is generally controlled. Chinese patent No. 2017204654850 discloses a tire component joint detection mechanism, the rotary drum mechanism includes a vertical base plate, an up-down driving assembly disposed behind the base plate, a rotary driving assembly disposed on the up-down driving assembly, and a rotary drum connected to the rotary driving assembly; detection mechanism is including being located the backup pad of base plate front side and installing detection subassembly in the backup pad, detection subassembly includes laser generator, receives 3D camera, encoder and the controller of the signal that laser generator sent, laser generator and 3D camera with rotatory drum sets up relatively, the backup pad can be under a drive that removes actuating mechanism from top to bottom, control and preceding rear upwards remove. This detection mechanism needs to utilize the 3D camera to carry out real-time detection, and the reconstruction 3D image to detect the defect in overlap joint, crack and the clearance of tire part joint, the structure is complicated, and the processing procedure is complicated, can't directly obtain the judgement result of joint overlap joint volume.
Disclosure of Invention
The utility model aims to overcome the judgement structure of the lapping volume that present tire component connects detection mechanism can't directly give, and the structure of device is complicated, the problem that the processing procedure is complicated, a detection device of half steel radial tire matrix laminating lapping volume is provided, through the displacement sensor with the matrix contact, detect surperficial circularity at the rotatory in-process of drum, part between abrupt arch and the abrupt decline connects for the matrix, calculate this part signal through the encoder, reach and connect the lapping length, need not to shut down, can detect the length of the lapping volume of every matrix.
The utility model discloses an adopt following technical scheme to realize:
a detection device for the fitting and lapping amount of a semi-steel radial tire body comprises a connecting plate, a telescopic cylinder, a transition plate, a contact type grating digital displacement sensor, a small cylinder, a floating plate and a measuring wheel; the telescopic cylinder is arranged on the connecting plate, a transition plate is arranged on a piston rod of the telescopic cylinder, two small cylinders are arranged on the transition plate, springs are sleeved on the piston rods of the small cylinders, the piston rods of the small cylinders are connected with the floating plate in a sliding mode, the piston rods of the small cylinders extend out, and the springs are in a compressed state below the floating plate; the contact type grating digital displacement sensor is fixedly arranged on the transition plate, a telescopic measuring head of the contact type grating digital displacement sensor is propped against the floating plate, a measuring wheel is arranged on the position, opposite to the telescopic measuring head, of the floating plate, and the diameter of the measuring wheel can distinguish the thickness change of a tire body joint.
Further, the wheel diameter is 5-15mm, preferably 10 mm.
Furthermore, two through holes are formed in the transition plate, a piston rod of the small air cylinder penetrates through the through holes, and a limit nut is arranged at the end of the piston rod of the small air cylinder.
Further, the contact type grating digital displacement sensor is arranged at the central position between the two small air cylinders.
Furthermore, the device also comprises a processor and an alarm, wherein the contact type grating digital displacement sensor and the alarm are respectively connected with the processor.
Further, the spring is characterized by further comprising a sleeve, and the sleeve is sleeved on the spring.
Further, the measuring wheel comprises a bracket, a rotating shaft and a rotating wheel.
This detection device is when the matrix laminating, through the displacement sensor with matrix drum contact, at the rotation process of drum, detects matrix surface circularity, and the part between abrupt arch and the abrupt decline is the matrix joint, calculates this part signal through the encoder, reachs and connects overlap joint length to judge whether to accord with the standard with connecting length. When a connector which does not meet the standard is detected, the equipment alarms to remind an operator to process. The machine does not need to be stopped, the production efficiency does not need to be reduced, and the full inspection can be realized.
Drawings
FIG. 1 is a schematic view of a shaped carcass overlap;
FIG. 2 is a view showing the construction of the detecting unit;
FIG. 3 is a schematic installation view;
FIG. 4 is a schematic diagram of the detection.
In the above figures, 1, a carcass drum; 1-1, carcass ply; 2. a lap joint amount detection device; 2-1 measuring wheel; 2-2, a floating plate; 2-3, a spring; 2-4, a small cylinder; 2-5, a contact type grating digital displacement sensor; 2-6, a transition plate; 2-7, a telescopic cylinder; 2-8, connecting plates; 3. and (4) pressing the rolls.
Detailed Description
In order to clearly understand the above objects, features and advantages of the present invention, the present invention will be further described with reference to the accompanying drawings and embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Examples
A device for detecting the amount of tire body bonding and overlapping of a semi-steel radial tire (hereinafter sometimes referred to as the detection device) comprises a connecting plate, a telescopic cylinder, a transition plate, a contact type grating digital displacement sensor, a small cylinder, a floating plate and a measuring wheel as shown in figure 2. The bottom of the telescopic cylinder is arranged on the connecting plate, and a piston rod of the telescopic cylinder is fixedly connected with the transition plate in a threaded connection mode. Two small cylinders are arranged on the transition plate in parallel, piston rods of the small cylinders are connected with the floating plate in a sliding mode, and the sliding connection mode is only to ensure that the floating plate can move up and down on the piston rods of the small cylinders without separating from the piston rods. The sliding connection mode adopted by the embodiment is as follows: two through holes are formed in the transition plate, a piston rod of the small air cylinder penetrates through the through holes, and a limiting nut is arranged at the end of the piston rod of the small air cylinder, so that the floating plate cannot be separated from the piston rod of the small air cylinder. The piston rod of the small cylinder is sleeved with a spring, the piston rod of the small cylinder extends out, the spring is in a compressed state below the floating plate, and the small cylinder, the floating plate and the spring form a floating mechanism. The contact type grating digital displacement sensor is fixedly arranged on the transition plate, a telescopic measuring head of the contact type grating digital displacement sensor is supported on the floating plate, a measuring wheel is arranged at the position, opposite to the telescopic measuring head, on the floating plate, the measuring wheel comprises a support, a rotating shaft and wheels, the support is fixedly arranged on the floating plate, the rotating shaft is arranged on the support, and the wheels are arranged on the rotating shaft. The diameter of the wheel is 10 mm. The diameter of the wheel is small, the thickness of the single-layer curtain cloth and the double-layer curtain cloth can be distinguished, and the thickness of the curtain cloth is generally 1.15-1.25 mm. The floating plate can change along with the up-and-down floating of the measuring wheel, and the contact type grating digital displacement sensor can sense the distance change between the transition plate and the floating plate, so that the thickness of the circumferential tire body of the tire body drum is converted into the distance change between the transition plate and the floating plate, and the change value is measured and output (shown in a detection principle diagram of the attached figure 4).
In order to make the structure compact and improve the stability of the measuring device, the contact type grating digital displacement sensor is arranged on the central position between two small air cylinders, and the two small air cylinders are the same in type.
In order to protect the sensor from damage when the float mechanism is abnormally depressed, a sleeve (not shown in fig. 1) is sleeved outside the spring to serve as a spring limit.
In order to prompt an operator to handle abnormal conditions, the detection device further comprises a processor and an alarm, wherein the processor is connected with the contact type grating digital displacement sensor and the alarm respectively. The contact type grating digital displacement sensor transmits data to the processor, the processor processes the data, and if the data exceed a preset numerical value, the alarm is controlled to send out an alarm signal.
The detection device is used for detecting the tire body joint lap joint amount when a semi-steel radial tire body is formed for one section. When the device is used, the detection device is fixedly arranged on a support frame of the lower compression roller through a connecting plate (shown in figure 3), and a telescopic measuring head of the contact type grating digital displacement sensor faces towards a tire body. When the cord fabric is attached to the tire body drum and the joint is completed, the detecting device rises along with the lower pressing roller, the measuring wheel of the detecting device is abutted to the tire body drum when the tire body drum is pressed by the lower pressing roller, the tire body drum drives the measuring wheel to rotate, and when the tire body joint position is met, the thickness of the lap joint position of the cord fabric is twice that of other positions, so that the measuring wheel can move downwards, and after the lap joint position is passed, the measuring wheel is restored to the thickness of a single layer under the action of the spring. After measuring for one week, the telescopic cylinder retracts, and the detection is finished.
Measuring the position of the wheel by a contact type grating digital displacement sensor according to the rotating speed n of the carcass drum, the diameter D of the carcass drum, the thickness of the cord fabric and the time delta t (t)2-t1) Calculating the length L of the lap joint and a set value L0Comparison, L0If the lapping quantity range is exceeded, the equipment alarms and prompts an operator to process.
Overlap lengths L and L0The calculation formula is as follows:
actual lap length L:
L＝2π*n*Δt*(D/2+)
n: the rotational speed of the drum, in rpm;
Δ t: the time difference, i.e. the difference between the lapping position ending time t2 and the starting time t1, i.e. t2-t1, unit s;
d: drum diameter in mm;
: carcass thickness in mm.
L0Setting the range:
LUPupper limit of lapping number 25.4/EPI;
LUP: setting an upper length limit;
EPI 1 inch cord count for cord.
When a semi-steel radial tire body is formed for one section, the tire body is provided with a forming joint and a cutting joint, and the detection of the lapping amount of the cutting joint is the same as the detection method and the judgment standard of the lapping amount of the forming joint, so the device can detect the forming joint and the cutting joint simultaneously.
In the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be understood in a broad sense, and may be, for example, a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (7)
1. A detection device for the fitting and overlapping amount of a semi-steel radial tire body is characterized by comprising a connecting plate, a telescopic cylinder, a transition plate, a contact type grating digital displacement sensor, a small cylinder, a floating plate and a measuring wheel; the telescopic cylinder is arranged on the connecting plate, a transition plate is arranged on a piston rod of the telescopic cylinder, two small cylinders are arranged on the transition plate, springs are sleeved on the piston rods of the small cylinders, the piston rods of the small cylinders are connected with the floating plate in a sliding mode, the piston rods of the small cylinders extend out, and the springs are in a compressed state below the floating plate; the contact type grating digital displacement sensor is fixedly arranged on the transition plate, a telescopic measuring head of the contact type grating digital displacement sensor is propped against the floating plate, a measuring wheel is arranged on the position, opposite to the telescopic measuring head, of the floating plate, and the diameter of the measuring wheel is 5-15 mm.
2. The detection device according to claim 1, wherein the transition plate is provided with two through holes, a piston rod of the small cylinder passes through the through holes, and a limit nut is arranged at the end part of the piston rod of the small cylinder.
3. The sensing device of claim 1, wherein the contact grating digital displacement sensor is centrally disposed between the two small cylinders.
4. The detecting device for detecting the displacement of the optical grating, according to claim 1, further comprising a processor and an alarm, wherein the contact type optical grating digital displacement sensor and the alarm are respectively connected with the processor.
5. The sensing device of claim 1, further comprising a sleeve that fits over the spring.
6. The detection device of claim 1, wherein the measuring wheel comprises a bracket, a shaft, and a wheel.
7. The testing device of claim 1, wherein the wheel diameter of the measuring wheel is 10 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020498509.4U CN211954034U (en) | 2020-04-08 | 2020-04-08 | Detection device for half-steel radial tire body fitting lap joint amount |
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| CN202020498509.4U CN211954034U (en) | 2020-04-08 | 2020-04-08 | Detection device for half-steel radial tire body fitting lap joint amount |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747676A (en) * | 2020-12-29 | 2021-05-04 | 上海骄成机电设备有限公司 | Film joint detection device and detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747676A (en) * | 2020-12-29 | 2021-05-04 | 上海骄成机电设备有限公司 | Film joint detection device and detection method |
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