WO2023072222A1

WO2023072222A1 - Belt detection mechanism, feeding device, and tire building machine

Info

Publication number: WO2023072222A1
Application number: PCT/CN2022/128108
Authority: WO
Inventors: 刘春来
Original assignee: 萨驰智能装备股份有限公司
Priority date: 2021-10-28
Filing date: 2022-10-28
Publication date: 2023-05-04
Also published as: CN216544821U

Abstract

Disclosed in the present application are a belt detection mechanism, a feeding device, and a tire building machine. The belt detection mechanism is used for detecting a belt conveyed by a feeding rack, and comprises: a base configured to be connected to the feeding rack; a swing frame swingably mounted on the base, a detection position and a trigger position being set in a path along which the swing frame swings, a first gap being formed between the swing frame and a conveying surface of the feeding rack when the swing frame is located in the detection position, and having a width less than the thickness of the belt, and a second gap being formed between the swing frame and the conveying surface of the feeding rack when the swing frame is located in the trigger position, and having a width greater than that of the first gap; a detection unit configured to form a trigger signal when the swing frame is located in the trigger position; and a reset unit configured to return the swing frame to the detection position.

Description

Strip detection mechanism, feeding device and tire building machine

This application claims priority to a Chinese patent application with application number 202122615329.7 filed with the China Patent Office on October 28, 2021, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the technical field of tire building, for example, it relates to a material belt detection mechanism, a feeding device and a tire building machine.

Background technique

In the tire building operation, the belt layer material belt needs to be transported and supplied to the belt drum through the feeding device, so as to be used for forming the tire tread. Exemplarily, as shown in Figure 1, the feeding device is arranged below the belt drum 200', which generally includes a feeding rack 100' and a timing belt that is rotatably conveyed around the feeding rack 100', and a fixed-length belt layer The material belt 300' is input into the timing belt from the receiving end of the timing belt (left side in Fig. 1), and its head is conveyed to the output end of the timing belt (right side in Fig. 1) along with the timing belt. Below the drum 200', when the belt drum 200' receives the belt layer material belt 300', it will rotate at the same linear speed as the synchronous belt conveying speed, so as to wind up the head of the belt layer material belt 300' until it is completely The belt ply strip 300' is wound up onto its drum.

However, as shown in FIG. 2, since the belt layer material strip 300' mainly composed of unvulcanized rubber has a certain degree of stickiness, there is a certain probability of sticking during the belt drum 200' winding the belt layer material belt 200'. Attached to the synchronous belt but not wound by the belt drum 200 ′, and then as the synchronous belt continues to be conveyed to the bottom of the feeding device and pushed, causing the synchronous belt to be damaged and affecting the molding of the tire.

Contents of the invention

The present application provides a material belt detection mechanism, a feeding device and a tire building machine, so as to avoid the problem that the belt layer is not conveyed according to a predetermined method and damage the feeding device during the tire building operation.

In the first aspect, the present application provides a tape detection mechanism for detecting the tape conveyed by the feeding rack, and the tape detection mechanism includes:

a base for connecting the feeding rack;

The pendulum is swingably arranged on the base, and has a detection position and a trigger position; when the pendulum is at the detection position, a There is a first gap, and the width of the first gap is smaller than the thickness of the material strip; when the swing frame is at the trigger position, a second gap is formed between the swing frame and the conveying surface of the feeding rack. a gap, the width of the second gap being greater than the width of the first gap;

a detection unit configured to form a trigger signal when the pendulum is located at the trigger position; and

The reset unit is configured to return the pendulum to the detection position.

In the second aspect, the present application also provides a feeding device, including a feeding frame, on which a synchronous belt for rotary transmission is arranged, and the synchronous belt is configured as a conveyor belt, and the feeding device also Including the above-mentioned strip detection mechanism.

In a third aspect, the present application provides a tire building machine, including a belt drum and the above-mentioned feeding device, the belt drum is arranged above the end of the feeding frame, so as to be able to receive the synchronous belt delivery The belt layer material belt, the material belt detection mechanism is arranged downstream of the belt drum.

Description of drawings

Fig. 1 is a structural schematic diagram of the belt layer material belt provided by the belt drum rewinding feeding device in the related art;

Fig. 2 is a structural schematic diagram of the belt layer material belt provided by the belt drum unwinding feeding device in the related art;

Fig. 3 is a partial structural schematic diagram of the feeding device in the embodiment of the present application;

Fig. 4 is a three-dimensional schematic diagram of a strip detection device in an embodiment of the present application;

Fig. 5 is a schematic structural view of the pendulum of the strip detection device in the embodiment of the present application when it is in the detection position;

Fig. 6 is a schematic structural view of the pendulum of the strip detection device in the embodiment of the present application when it is in the trigger position.

In the picture:

100', feeding frame; 200', belt drum; 300', belt layer material belt;

100, feeding rack; 200, belt drum; 300, belt layer material belt;

1. Base;

2. Swing frame; 21. Swing arm; 22. Detection arm; 23. Briquetting block;

3. Detection unit; 31. Mounting frame; 32. Photoelectric switch; 33. Reflector;

4. Reset unit; 41. Stopping part; 411. Jacking wire seat; 412. Jacking wire; 420. Elastic element; 42. Extension spring; 43. Adjusting part; 431. Adjusting disc; 4311. Bar hole.

Detailed ways

The application will be described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application. In addition, it should be noted that, for the convenience of description, only some structures related to the present application are shown in the drawings but not all structures.

In the description of this application, unless otherwise clearly specified, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be fixed connection, detachable connection, or integrated; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.

In this application, unless otherwise expressly specified, a first feature being "on" or "under" a second feature may include that the first and second features are in direct contact, or that the first and second features are not in direct contact. contact but through additional feature contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this embodiment, the terms "up", "down", "right", and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operations, rather than indicating Or imply that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation. In addition, the terms "first" and "second" are only used to distinguish in description, and have no special meaning.

This embodiment provides a strip detection mechanism, the strip detection mechanism is used to detect the strip transported by the feed rack, so it can be applied to the strip does not enter the detected station, enters the detected station and leaves the detected station. The judgment of the detection station can also be applied to scenarios such as calculating the length of the material belt based on the conveying speed of the feeding rack and the duration of the detection structure state with the material.

In this embodiment, the material belt detection mechanism is applied to the belt layer feeding device of the tire building machine, so as to solve the problem that the belt layer material belt is occasionally involved in the synchronization during the tire building operation of the tire building machine mentioned above. The problem of damaging the feeding device with the belt will be described in detail below.

Because the belt layer material is soft and sticky, it is impossible to use a shovel or a guiding mechanism to assist the belt layer material belt to be peeled off from the timing belt during the belt drum winding process. The belt ply strip is guided onto the drum head of the belt drum. Therefore, in order to avoid the failure of the upper drum of the belt layer material, which will cause the belt layer to pile up and damage the synchronous belt, the material belt detection mechanism provided in this embodiment can be installed downstream of the belt drum along the synchronous belt conveying direction. After the tape detection mechanism detects the belt layer material tape, it can judge that the belt layer material tape has not been wound up by the belt drum, and then stop the feeding device based on the trigger signal generated by the belt layer material tape, so that it can Avoid the situation that the belt layer material belt is conveyed along the synchronous belt, causing the belt layer to pile up and damage the synchronous belt.

Optionally, as shown in FIG. 3 , the tire building machine has a belt drum 200 and a feeding device for supplying belt material strip 300 to the belt drum 200 . The feeding device includes a feeding frame 100, on which a timing belt for rotary transmission is arranged, and the timing belt is used for conveying the belt layer material belt 300. The fixed-length belt layer material belt 300 is input from the receiving end (left side in Fig. 3) of the synchronous belt, and its head is forwarded to the output end (right side in Fig. 3) of the synchronous belt along with the synchronous belt. Immediately below the belt drum 200, when the belt drum 200 receives the belt layer material belt 300, it will rotate at the same linear speed as the synchronous belt conveying speed, thereby winding the head of the belt layer material belt 300 until The belt ply strip 300 is fully wound up to its drum. The belt detection mechanism is arranged on the downstream of the belt drum 200 along the synchronous belt conveying direction, so as to be able to detect the belt layer material belt 300 that cannot be rewound by the belt drum 200, and after being triggered by the belt layer material belt 300 to The driving mechanism of the synchronous belt or the control end of the driving mechanism transmits the trigger signal, and then it is convenient to stop the driving mechanism, and the belt layer material belt 300 is manually cleaned, or the timing belt is reversed to make the belt layer material belt 300 return to the belt belt The upstream of the drum 200 and re-feeding action.

Please continue to refer to FIG. 3 in conjunction with FIG. 4 , the tape detection mechanism includes a base 1 , a swing frame 2 , a detection unit 3 and a reset unit 4 . The base 1 is configured to be connected to the feeding frame 100, and the base 1 is provided with a swing frame 2 swingably, and at least one detection position and one trigger position are set in the swing path of the swing frame 2. The reset unit 4 is configured to return the swing frame 2 to the detection position. As shown in FIG. 5 , when the swing frame 2 is at the detection position, there is a first gap between the swing frame 2 and the conveying surface of the supply frame 100 . The width d1 of the first gap refers to the minimum distance between the swing frame 2 and the conveying surface of the feed frame 100 when the swing frame 2 is at the detection position, and d1 is greater than or equal to 0, but less than the belt layer material belt 300 Thickness, so that when the belt layer material belt 300 is transported to the pendulum frame 2 by the timing belt, the belt layer can intervene between the pendulum frame 2 and the conveying surface of the synchronous belt, thereby overcoming the reset action of the reset unit 4 on the pendulum frame 2 And drive the swing frame 2 to swing, so that the swing frame 2 is switched to the trigger position. As shown in FIG. 6 , when the swing frame 2 is at the trigger position, a second gap is formed between the swing frame 2 and the conveying surface of the supply rack 100 . The width d2 of the second gap refers to the minimum distance between the swing frame 2 and the conveying surface of the supply rack 100 when the swing frame 2 is at the trigger position, and d2 is greater than d1. The detection unit 3 is configured to detect the position of the pendulum 2 and generate the above-mentioned trigger signal when the pendulum 2 is at the trigger position.

Optionally, please continue to refer to FIG. 4 , the base 1 is fixed on the side of the feed frame 100, the swing frame 2 includes a swing arm 21 and a detection arm 22, wherein the swing arm 21 is pivotally connected to the base 1, and the swing arm 21 and the base 1 are located at the side of the feed frame 100 and can rotate around a horizontal pivot provided between the swing arm 21 and the base 1 . The detection arm 22 may be a smooth cylindrical rod body, the first end of the detection arm 22 is connected to the swing arm 21, and the second end of the detection arm 22 extends inwardly from the side of the feed frame 100 to above the conveying surface of the feed frame 100 , so that the detection arm 22 can swing up and down with the swing arm 21 .

As shown in Figure 3, the swing arm 21 is arranged on the radially outer side of the front end of the feeding frame 100 corresponding to the bending portion of the synchronous belt, so that the swing arm 21 can be placed in the downstream position immediately adjacent to the belt drum 200, and there is no need to detect the belt for convenience. Layer belt 300 and intentionally extend the timing belt.

Please refer to FIG. 5 and FIG. 6 for comparison, wherein FIG. 5 is a schematic structural view of the swing frame 2 at the detection position, and FIG. 6 is a structural schematic view of the swing frame 2 at the trigger position. When the belt layer material strip 300 is normally wound up by the belt drum 200, or the belt layer material strip 300 is not wound up by the belt drum 200 and has not been transported below the detection arm 22, the pendulum frame 2 as a whole is in the position shown in FIG. The detection bit shown. And when the belt layer material belt 300 that is not rewound by the belt drum 200 is continuously conveyed to the bending position at one end of the timing belt by the timing belt, the belt layer material belt 300 will intervene between the detection arm 22 and the conveying surface of the timing belt In the gap, thereby pushing the detection arm 22, so that the detection arm 22 drives the swing arm 21 to rotate and swing an angle around the pivot of the swing arm 21 and the base 1 according to the clockwise direction of the view direction in Fig. 5 and Fig. 6, so that the swing frame 2 is in the trigger position shown in Figure 6 as a whole.

Please continue to refer to Fig. 4, Fig. 5 and Fig. 6. In this embodiment, the detection unit 3 includes a mounting frame 31 installed on the feed rack 100, and a photoelectric switch 32 and a reflector 33 all mounted on the mounting frame 31. , wherein, the same side of the photoelectric switch 32 is provided with a light emitting end and a light incident end, the light emitting end can emit infrared light outward, and the light incident end can receive infrared light, and the reflector 33 is arranged opposite to the photoelectric switch 32, so that the light exits The infrared light emitted from the end can be reflected by the reflector 33 toward the light incident end, so that the photoelectric switch 32 generates a trigger signal. In order to detect the position of the pendulum 2, a gap is formed between the photoelectric switch 32 and the reflector 33 to allow the swing arm 21 to intervene. At the light incident end, the photoelectric light will not generate a trigger signal, and when the pendulum 2 is in the trigger position, the swing arm 21 rotates with the detection arm 22 and moves out of the propagation path of the infrared light, thereby allowing the infrared light to shoot to the light incident end, so that the photoelectric Turn on the light to generate a trigger signal.

Of course, in other embodiments, the structure of the detection unit 3 can be adjusted according to actual conditions. For example, a group of through-beam photoelectric switches 32 can be used, so that the light-emitting end and the light-receiving end of the through-beam photoelectric switch 32 are respectively arranged on both sides of the swing arm 21, so that according to whether the light-receiving end can receive the The infrared rays determine the position of the swing arm 21. Alternatively, a contact/proximity switch that can be used when the swing arm 21 is in the above-mentioned detection position or trigger position can be used, so as to determine the position of the swing arm 21 based on the detection signal of the contact/proximity switch.

In this embodiment, the reset unit 4 may include a stopper 41 and an elastic element 420, the stopper 41 can abut against the swing arm 21 of the swing frame 2 at the detection position, thereby supporting the swing frame 2, and limiting the swing arm 21. swing stroke. The elastic element 420 can optionally use a tension spring 42 , the first end of the tension spring 42 is connected to the feeding rack 100 , and the second end of the tension spring 42 is connected to the swing arm 21 of the swing frame 2 . When the swing frame 2 is at the trigger position, the extension spring 42 is stretched by the rotating swing arm 21 to produce elastic deformation, and when the belt layer material belt 300 between the detection arm 22 and the synchronous belt is removed, the extension spring 42 can The natural state is restored, so that the traction pendulum 2 is reset to the detection position against the stopper 41 .

In order to adapt to the detection of belt material belts 300 of different thicknesses, on the one hand, the detection arm 22 of different diameters can be replaced, that is, the gap between the detection arm 22 and the timing belt can be adjusted, therefore, the swing arm 21 and the detection arm can be 22 are arranged to be detachably connected, as shown in FIG. 4 , the detection arm 22 can be clamped and fixed through a pressure block 23 and the swing arm 21 . On the other hand, by adjusting the position where the stopper 41 abuts against the swing frame 2 , the preset detection position of the swing frame 2 can be adjusted indirectly, that is, the static position when the swing arm 21 is at the detection position can be adjusted. Optionally, as shown in FIGS. 3 and 4 , in this embodiment, the stopper 41 includes a jacking screw seat 411 connected to the feed rack 100 , and a jacking screw 412 screwed to the jacking screw seat 411 . 412 is screwed in from bottom to top and protrudes from the upper end of the top wire seat 411, and one end of the top wire 412 protruding from the top wire seat 411 abuts against the swing frame 2, thereby adjusting the relative position between the top wire 412 and the top wire seat 411. The screw connection position can adjust the static position of the swing arm 21 when it is in the detection position, and then adjust the gap between the detection arm 22 and the synchronous belt.

It should be noted that if the belt layer material strip 300 is too soft in a specific production situation, when the belt layer material belt 300 intervenes between the detection arm 22 and the conveying surface of the synchronous belt, it may not be able to overcome the elastic force of the elastic element 420 and Squeezed by the detection arm 22 and the synchronous belt and continues to enter the inside of the feeding device along with the synchronous belt delivery. For this reason, in this embodiment, the reset unit 4 also includes an adjustment part 43, by means of the adjustment part 43, factors such as the degree of softness and hardness of the belt material strip 300, the long-term service stiffness coefficient of the elastic element 420 become smaller, etc. , to adjust the degree of elastic deformation of the elastic member 420 when the swing frame 2 is at the detection position.

As shown in FIG. 3 , in this embodiment, the adjusting part 43 includes an adjusting disc 431 and at least one bolt. The adjusting disc 431 is pivotally connected to the feeding frame 100 and hooked to one end of the tension spring 42 for connecting the feeding frame 100 The adjusting disk 431 is provided with an arc-shaped bar hole 4311 around its pivot axis with the feed rack 100. The bar hole 4311 is opposite to the screw hole provided on the feed rack 100, and the bolt can pass through the bar hole 4311 and the screw hole. Hole threaded. After the bolt is unlocked, the stretching degree of the extension spring 42 can be adjusted by rotating the adjusting dial 431 , and after the adjustment is completed, the bolt is tightened again to lock the adjusting dial 431 on the feeding rack 100 .

It should be noted that, in other embodiments, the elastic element 420 can also be a compression spring or a shrapnel, etc., and based on the type of the elastic element 420, its connection mode and relative installation position with the swing arm 21 should be adjusted accordingly, and corresponding auxiliary components should be selected. Just install it. At the same time, after adjusting the type of the elastic element 420, the adjustment part 43 also needs to be adjusted accordingly. For example, in the embodiment where the compression spring is used as the elastic element 420, the compression spring can be resisted by a movable locking stopper. , so that the compression spring is compressed between the swing arm 21 and the block, by adjusting the distance between the block and the swing arm 21, the degree of elastic deformation of the compression spring when the swing frame 2 is in the detection position can be adjusted.

The pendulum of the belt detection mechanism provided by the application can be driven by the belt layer material that has not been rewound by the belt drum to swing, and the detection unit is triggered based on the position change of the detection pendulum, and then can be sent to the drive mechanism of the synchronous belt Or the control end of the driving mechanism transmits the trigger signal, so that it is convenient to stop the driving mechanism, manually clean the belt layer material belt, or reverse the timing belt, so that the belt layer material belt returns to the upstream of the belt drum and reloads . The feeding device and tire building machine provided by the present application can avoid the problem that the synchronous belt is damaged and the tire building is affected due to the failure of the belt layer to be transported in a predetermined way due to the adoption of the above-mentioned material belt detection mechanism.

Claims

A material tape detection mechanism for detecting a material tape conveyed by a feeding rack (100), the material tape detection mechanism comprising:

a base (1), configured to connect to the feeding frame (100);

The swing frame (2) is swingably arranged on the base (1), at least one detection position and one trigger position are set in the swing path of the swing frame (2); when the swing frame (2 ) is located at the detection position, a first gap is formed between the pendulum frame (2) and the conveying surface of the feed rack (100), and the width of the first gap is smaller than the thickness of the strip; when When the pendulum (2) is at the trigger position, a second gap is formed between the pendulum (2) and the conveying surface of the feeding rack (100), and the width of the second gap is larger than the the width of the first gap;

a detection unit (3), configured to form a trigger signal when the pendulum (2) is located at the trigger position; and

The reset unit (4) is configured to return the swing frame (2) to the detection position.
The tape detection mechanism according to claim 1, wherein the pendulum (2) comprises:

a swing arm (21), pivotally connected to the base (1), and the swing arm (21) is located at the side of the feeding rack (100); and

A detection arm (22), connected to the swing arm (21), the detection arm (22) extends above the conveying surface of the feeding rack (100), and can swing up and down with the swing arm (21) .
The strip detection mechanism according to claim 2, wherein the detection arm (22) is detachably connected to the swing arm (21).
The tape detection mechanism according to claim 1, wherein the detection unit (3) comprises:

photoelectric switch (32); and

The reflector (33) is configured to reflect the light emitted by the light emitting end of the photoelectric switch (32) to the light receiving end of the photoelectric switch (32); when the pendulum (2) is located at the detection When the swing frame (2) is in the trigger position, the swing frame (2) intervenes in the propagation path of the light, and when the swing frame (2) is in the trigger position, the swing frame (2) moves out of the light propagation path.
The tape detection mechanism according to claim 1, wherein the reset unit (4) comprises:

a stopper (41), capable of abutting against the pendulum (2) at the detection position;

An elastic element (420), the first end of the elastic element (420) is connected to the feed rack (100), and the second end of the elastic element (420) is connected to the pendulum (2); when the When the pendulum (2) is located at the trigger position, the elastic element (420) can produce elastic deformation, and when the elastic element (420) returns to the natural state, it can pull the pendulum (2) back to the same position as the The stop part (41) abuts against.
The tape detection mechanism according to claim 5, wherein the stopper (41) comprises:

Jacking screw seat (411), is used for connecting described feeding frame (100); And

The jacking wire (412) is screwed to the jacking screw seat (411), and one end of the jacking thread (412) protruding from the jacking thread seat (411) abuts against the swing frame (2).
The strip detection mechanism according to claim 5, wherein the reset unit (4) further comprises an adjustment part (43), and the adjustment part (43) is configured to adjust the position of the elastic element (420) in the The degree of elastic deformation of the pendulum (2) when it is in the detection position.
The tape detection mechanism according to claim 7, wherein the elastic element (420) is a tension spring (42), and the adjustment part (43) comprises:

The adjusting disc (431) is pivotally connected with the feed rack (100) and connected with one end of the extension spring (42). The adjusting disc (431) is provided with The bar hole (4311) that the pivot of the feed rack (100) is offered, the bar hole (4311) is opposite to the screw hole that is provided with on the feed rack (100); and

Bolts can pass through the strip holes (4311) and be screwed into the screw holes, so as to lock the adjusting disc (431) to the feeding rack (100).
A feeding device, comprising a feeding rack (100), the feeding rack (100) is provided with a synchronous belt for rotary transmission, the synchronous belt is configured as a conveyor belt, and the feeding device also includes such as The strip detection mechanism according to any one of claims 1-8.
A tire building machine comprising a belt drum (200) and the feeding device according to claim 9, the belt drum (200) is arranged above the end of the feeding frame (100) to be able to receive The belt layer material belt (300) conveyed by the synchronous belt, the material belt detection mechanism is arranged downstream of the belt drum (200).