阅读说明：本技术 一种缓速定点制动的输送系统 (Conveying system with retarding and fixed-point braking functions ) 是由 邵金玉 凌玉龙 于 2021-10-11 设计创作，主要内容包括：本发明公开了一种缓速定点制动的输送系统,包括：导轨支架、用于放置产品的移动平台、至少一个用于带动移动平台移动的输送带、至少一个用于制动移动平台和/或输送带的制动模块,所述输送带安装在导轨支架内,移动平台与导轨支架滑动连接；本发明的有益效果是：能够通过在压力组件的作用下,以摩擦制动的方式停止移动平台,使移动平台以匀减速的状态停止,避免产品滑动、倾倒；可通过控制器计算出合适的制动力,并加以执行,以保证产品在指定工位区间内停止,避免出现未达到指定工位区间内,产品就停止移动,或超出指定工位区间的情况；在静摩擦片上设置阻停斜台,当动摩擦片移动到阻停斜台上停止后,能够滑回到指定工位区间内。(The invention discloses a slow speed fixed point braking conveying system, which comprises: the device comprises a guide rail bracket, a moving platform for placing a product, at least one conveying belt for driving the moving platform to move, and at least one braking module for braking the moving platform and/or the conveying belt, wherein the conveying belt is arranged in the guide rail bracket, and the moving platform is connected with the guide rail bracket in a sliding manner; the invention has the beneficial effects that: the moving platform can be stopped in a friction braking mode under the action of the pressure assembly, so that the moving platform is stopped in a uniformly decelerated state, and the sliding and toppling of products are avoided; the controller can calculate proper braking force and execute the braking force to ensure that the product stops in the designated station interval, so that the situation that the product stops moving or exceeds the designated station interval when the product does not reach the designated station interval is avoided; and a stopping oblique table is arranged on the static friction plate, and the dynamic friction plate can slide back to the designated station interval after moving to the stopping oblique table to stop.)

1. A retarded fixed-point braking conveyor system comprising: guide rail bracket, the moving platform who is used for placing the product, at least one be used for driving the conveyer belt that moving platform removed, at least one be used for braking the braking module of moving platform and/or conveyer belt, its characterized in that: the conveying belt is arranged in the guide rail bracket, and the moving platform is connected with the guide rail bracket in a sliding manner;

the brake module consists of a dynamic friction plate, a pressure assembly and a static friction plate;

the dynamic friction plate is in transmission connection with the pressure assembly, moves towards and contacts the static friction plate and provides friction force for braking the moving platform and/or the conveying belt;

the pressure assembly, comprising: the linear power source comprises a linear power source and an elastic piece, wherein the moving direction of an output rod of the linear power source points to the static friction plate, the output rod of the linear power source is fixedly connected with one end of the elastic piece, the other end of the elastic piece is fixedly connected with the dynamic friction plate, and the linear power source can be a stepping cylinder or a stepping linear motor.

2. A retarding fixed point brake delivery system according to claim 1, wherein: the operation of the linear power source is regulated and controlled by a control system.

3. A retarding fixed point brake delivery system according to claim 1, wherein: the pressure assembly and the dynamic friction plate are arranged on the moving platform, and the static friction plate is arranged on the guide rail bracket.

4. A retarding fixed point brake delivery system according to claim 1, wherein: the pressure assembly and the dynamic friction plate are arranged on the guide rail bracket, and the static friction plate is arranged on the moving platform.

5. A retarding fixed point brake delivery system according to claim 1, wherein: the pressure assembly further comprises: the linear power source is a stepping cylinder, the stepping cylinder is arranged in the mounting seat, and the mounting seat is fixedly connected with the guide rail bracket or the moving platform;

and the telescopic rod of the stepping cylinder is in transmission connection with the dynamic friction plate to drive the dynamic friction plate to stretch and retract, so that the dynamic friction plate is in contact with or far away from the static friction plate.

6. A retarding fixed point brake delivery system according to claim 1, wherein: the pressure assembly further comprises: the linear power source is a stepping linear motor, the stepping linear motor is arranged in the mounting seat, and the mounting seat is fixedly connected with the guide rail bracket or the moving platform;

and a telescopic rod of the stepping linear motor is in transmission connection with the dynamic friction plate to drive the dynamic friction plate to stretch and retract, so that the dynamic friction plate is in contact with or far away from the static friction plate.

7. A retarding fixed point brake delivery system according to claim 1, wherein: the elastic piece is an air spring.

8. A retarding fixed point brake delivery system according to claim 1, wherein: the static friction plate is provided with a stopping inclined table, the stopping inclined table is fixedly connected with a positioning pipe inserted into the static friction plate, a spring for connecting the stopping inclined table and the static friction plate is arranged in the positioning pipe, and when the dynamic friction plate contacts the stopping inclined table, the braking force of the dynamic friction plate is increased through the spring.

9. A retarding fixed point brake delivery system according to claim 1, wherein: and a trigger switch for starting the pressure assembly when the mobile platform moves to a specified position is arranged on the guide rail bracket.

10. A retarding fixed point brake delivery system according to claim 1, wherein: the triggering mode of the trigger switch includes but is not limited to: contact type triggering, photoelectric sensor triggering and magnetic induction sensor triggering.

11. A retarding fixed point brake delivery system according to claim 2, wherein: the control system comprises a central processing unit module, a signal acquisition module, an actuator module and a sensor group;

the central processing unit module is used for calculating proper pressure between the static friction plate and the dynamic friction plate according to the weight and the speed of the product, the friction coefficient between the product and the moving platform, the friction coefficient between the static friction plate and the dynamic friction plate and the braking distance, and is also used for sending a control signal to the actuator module;

the proper pressure between the static friction plate and the dynamic friction plate ensures that the moving platform stops in a designated station interval on the premise of ensuring that products do not topple and slide;

the actuator can be a driver of a power element in the pressure assembly.

12. A slow fixed point brake delivery system as defined in claim 11, wherein: the sensor group includes: the device comprises a pressure sensor a for detecting the weight of a product placed on the moving platform, a pressure sensor b for detecting the pressure between the static friction plate and the dynamic friction plate, and a speed sensor for detecting the moving speed of the moving platform.

13. A retarding fixed point brake delivery system according to claim 2, wherein: the control system controls the pressure between the static friction plate and the dynamic friction plate in the following mode: keeping the telescopic rod extending out, and stopping the telescopic rod from moving when the pressure sensor detects that the pressure between the static friction plate and the dynamic friction plate reaches a specified magnitude; or calculating the extension distance of the telescopic rod required when the pressure between the specified static friction plate and the specified dynamic friction plate is reached, and then controlling the telescopic rod to extend out for the specified distance.

Technical Field

The invention relates to the field of conveying systems, in particular to a slow-speed fixed-point braking conveying system.

Background

When the product is processed and detected in a production line manner, the product needs to be placed on a moving platform driven by a conveying belt, and for specific products or specific processing and detection, the product cannot be fixed through fixing devices such as a clamp and can only be directly placed on the moving platform. For example, when the product is visually inspected, after the product is fixed by a fixing device such as a clamp, the fixing device can block the sight of the visual inspection equipment.

As described above, when the movement of the product needs to be stopped, if the deceleration is too high, the product may slip or fall, and if the deceleration is too low, the product cannot be stopped at the designated station.

Disclosure of Invention

The invention mainly solves the technical problems that: when a product is stopped, the traditional conveying system cannot avoid the problems of sliding, dumping and the like of the product, and can stop the product at a specified station.

In order to solve the technical problems, the invention adopts a technical scheme that:

a retarded fixed-point braking conveyor system comprising: the device comprises a guide rail bracket, a moving platform for placing a product, at least one conveying belt for driving the moving platform to move, and at least one braking module for braking the moving platform and/or the conveying belt, wherein the conveying belt is arranged in the guide rail bracket, and the moving platform is connected with the guide rail bracket in a sliding manner;

the brake module consists of a dynamic friction plate, a pressure assembly and a static friction plate;

the dynamic friction plate is in transmission connection with the pressure assembly, moves towards and contacts the static friction plate and provides friction force for braking the moving platform and/or the conveying belt;

the pressure assembly, comprising: the linear power source comprises a linear power source and an elastic piece, wherein the moving direction of an output rod of the linear power source points to the static friction plate, the output rod of the linear power source is fixedly connected with one end of the elastic piece, the other end of the elastic piece is fixedly connected with the dynamic friction plate, and the linear power source can be a stepping cylinder or a stepping linear motor.

Further: the operation of the linear power source is regulated and controlled by a control system.

Further: the pressure assembly further comprises: the linear power source is a stepping cylinder, the stepping cylinder is arranged in the mounting seat, and the mounting seat is fixedly connected with the guide rail bracket or the moving platform;

and the telescopic rod of the stepping cylinder is in transmission connection with the dynamic friction plate to drive the dynamic friction plate to stretch and retract, so that the dynamic friction plate is in contact with or far away from the static friction plate.

Further: the static friction plate is provided with a stopping inclined table, the stopping inclined table is fixedly connected with a positioning pipe inserted into the static friction plate, a spring for connecting the stopping inclined table and the static friction plate is arranged in the positioning pipe, and when the dynamic friction plate contacts the stopping inclined table, the braking force of the dynamic friction plate is increased through the spring.

Further: and a trigger switch for starting the pressure assembly when the mobile platform moves to a specified position is arranged on the guide rail bracket.

Further: the triggering mode of the trigger switch includes but is not limited to: contact type triggering, photoelectric sensor triggering and magnetic induction sensor triggering.

Further: the control system comprises a central processing unit module, a signal acquisition module, an actuator module and a sensor group;

the central processing unit module is used for calculating proper pressure between the static friction plate and the dynamic friction plate according to the weight and the speed of the product, the friction coefficient between the product and the moving platform, the friction coefficient between the static friction plate and the dynamic friction plate and the braking distance, and is also used for sending a control signal to the actuator module;

the proper pressure between the static friction plate and the dynamic friction plate ensures that the moving platform stops in a designated station interval on the premise of ensuring that products do not topple and slide;

the actuator can be a driver of a power element in the pressure assembly.

The invention has the beneficial effects that:

1. the moving platform can be stopped in a friction braking mode under the action of the pressure assembly, so that the moving platform is stopped in a uniformly decelerated state, and the sliding and toppling of products are avoided;

2. the controller can calculate proper braking force and execute the braking force to ensure that the product stops in the designated station interval, so that the situation that the product stops moving or exceeds the designated station interval when the product does not reach the designated station interval is avoided;

3. and a stopping oblique table is arranged on the static friction plate, and the dynamic friction plate can slide back to the designated station interval after moving to the stopping oblique table to stop.

Drawings

FIG. 1 is a schematic view of a retarding fixed point braking conveyor system according to the present invention;

FIG. 2 is a schematic structural view of a brake module;

FIG. 3 is a schematic structural view of a stopping ramp;

the parts in the drawings are numbered as follows: the device comprises a guide rail support 1, a moving platform 2, a conveying belt 3, a braking module 4, a dynamic friction plate 5, a static friction plate 6, a stopping oblique table 61, a pressure assembly 7, a mounting seat 71, a stepping cylinder 72, a sliding block 73, an elastic part 77 and a pressure sensor a 75.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

A retarded fixed-point braking conveyor system comprising: the device comprises a guide rail bracket 1, a moving platform 2 for placing products, at least one conveying belt 3 for driving the moving platform to move, and at least one braking module 4 for braking the moving platform and/or the conveying belt, wherein the conveying belt 3 is arranged in the guide rail bracket 1, and the moving platform 2 is connected with the guide rail bracket 1 in a sliding manner;

the brake module 4 consists of a dynamic friction plate 5, a pressure assembly 7 and a static friction plate 6;

the dynamic friction plate 5 is in transmission connection with the pressure assembly 7, the dynamic friction plate 5 is driven to ascend or descend by the pressure assembly 7, the dynamic friction plate 5 moves towards and contacts the static friction plate 6 when descending so as to provide friction force for braking the moving platform 2 and/or the conveying belt 3, and similarly, the dynamic friction plate 5 is far away from the static friction plate 6 when ascending;

the pressure assembly 7 has the functions of providing power for the dynamic friction plate 5 and applying pressure between the dynamic friction plate 5 and the static friction plate 6, and the magnitude of the provided pressure is regulated and controlled through a control system.

The control system calculates the pressure between the proper dynamic friction plate 5 and the proper static friction plate 6 according to the friction coefficient, the product weight, the running speed and other data, and executes the calculation so that the product can be stopped when moving to a designated station in a deceleration way without sliding or dumping.

Refer specifically to the examples below.

Example 1:

referring to fig. 1-3, an embodiment of the present invention includes:

a retarded fixed-point braking conveyor system comprising: the device comprises a guide rail bracket 1, a moving platform 2 for placing products, at least one conveying belt 3 for driving the moving platform to move, and at least one braking module 4 for braking the moving platform and/or the conveying belt, wherein the conveying belt 3 is arranged in the guide rail bracket 1, and the moving platform 2 is connected with the guide rail bracket 1 in a sliding manner;

the brake module 4 consists of a dynamic friction plate 5, a pressure assembly 7 and a static friction plate 6;

the dynamic friction plate 5 is in transmission connection with the pressure assembly 7, the dynamic friction plate 5 is driven to ascend or descend by the pressure assembly 7, the dynamic friction plate 5 moves towards and contacts the static friction plate 6 when descending so as to provide friction force for braking the moving platform 2 and/or the conveying belt 3, and similarly, the dynamic friction plate 5 is far away from the static friction plate 6 when ascending;

the pressure assembly 7 has the functions of providing power for the dynamic friction plate 5 and applying pressure between the dynamic friction plate 5 and the static friction plate 6;

the pressure component 7 and the dynamic friction plate 5 can be arranged on the moving platform 2, and correspondingly, the static friction plate 6 is arranged on the guide rail bracket 1, and similarly, the pressure component 7 and the dynamic friction plate 5 can also be arranged on the guide rail bracket 1, and correspondingly, the static friction plate 6 is arranged on the moving platform 2.

Specifically, as shown in fig. 1 and fig. 2, the pressure assembly 7 is composed of an installation seat 71 and a stepping cylinder 72, the stepping cylinder 72 is installed in the installation seat 71, and the installation seat 71 is fixedly connected with the guide rail bracket 1;

the telescopic rod of the stepping cylinder 72 is in transmission connection with the dynamic friction plate 5 so as to drive the dynamic friction plate 5 to lift.

Further, in order to better control the pressure between the dynamic friction plate 5 and the static friction plate 6, an elastic member is used to connect the dynamic friction plate 5 and the telescopic rod of the stepping cylinder 72, specifically: a guide rail in the vertical direction is arranged in the mounting seat 71, a sliding block 73 fixedly connected with a telescopic rod of the stepping cylinder 72 is arranged in the guide rail, the sliding block 73 can move up and down, an elastic piece 74 is arranged between the sliding block 73 and the movable friction plate 5, two ends of the elastic piece 74 are respectively connected with the sliding block 73 and the movable friction plate 5, and the elastic piece 74 is preferably an air spring.

Referring to fig. 3, in order to avoid that the friction force between the dynamic friction plate 5 and the static friction plate 6 is too small to cause the moving platform 2 to exceed the designated station interval, a stop ramp 61 is arranged on the static friction plate 6, a positioning tube 62 is fixedly arranged on the stop ramp 61, a spring 63 for connecting the stop ramp 61 and the static friction plate 6 is arranged in the positioning tube 62, when the dynamic friction plate 5 contacts the stop ramp 61, the dynamic friction plate 5 drives the stop ramp 61 to move, and when the dynamic friction plate 5 stops, the spring 63 drives the stop ramp and the dynamic friction plate 5 to slide back to the designated station interval.

The guide rail bracket 1 is provided with a trigger switch for starting the pressure assembly 7 when the mobile platform 2 moves to a specified position, and the trigger mode of the trigger switch includes but is not limited to: contact type triggering, photoelectric sensor triggering and magnetic induction sensor triggering.

The control system comprises a central processing unit module, a signal acquisition module, an actuator module and a sensor group;

the central processing unit module is used for calculating the pressure F between the static friction plate and the dynamic friction plate according to the total weight M and the speed V of the product and the moving platform, the friction coefficient mu S1 between the product and the moving platform, the friction coefficient mu S2 between the static friction plate and the dynamic friction plate and the braking stroke S, and the calculation formula is as follows:

F＝MV²/(2μs2*S),

if the product is ensured not to slide, the following steps are required:

V²/2μs1<S，

in addition, the central processing unit module is also used for sending a control signal to the actuator module;

the proper pressure between the static friction plate and the dynamic friction plate ensures that the moving platform stops in a designated station interval on the premise of ensuring that products do not topple and slide;

the actuator is a pneumatic control valve of a stepping cylinder and a driver thereof.

The sensor group includes: the device comprises a pressure sensor a for detecting the weight of a product placed on the moving platform, a pressure sensor b for detecting the pressure between the static friction plate and the dynamic friction plate, and a speed sensor for detecting the moving speed of the moving platform.

The control system can control the pressure between the static friction plate and the dynamic friction plate in the following mode: keeping the telescopic rod extending out, and stopping the telescopic rod from moving when the pressure sensor detects that the pressure between the static friction plate and the dynamic friction plate reaches a specified magnitude;

the control system can control the pressure between the static friction plate and the dynamic friction plate in the following mode: and calculating the extension distance of the telescopic rod required when the pressure between the specified static friction plate and the specified dynamic friction plate is reached, and then controlling the telescopic rod to extend out for the specified distance.

Example 2:

referring to fig. 1-3, an embodiment of the present invention includes:

a retarded fixed-point braking conveyor system comprising: the device comprises a guide rail bracket 1, a moving platform 2 for placing products, at least one conveying belt 3 for driving the moving platform to move, and at least one braking module 4 for braking the moving platform and/or the conveying belt, wherein the conveying belt 3 is arranged in the guide rail bracket 1, and the moving platform 2 is connected with the guide rail bracket 1 in a sliding manner;

the brake module 4 consists of a dynamic friction plate 5, a pressure assembly 7 and a static friction plate 6;

the dynamic friction plate 5 is in transmission connection with the pressure assembly 7, the dynamic friction plate 5 is driven to ascend or descend by the pressure assembly 7, the dynamic friction plate 5 moves towards and contacts the static friction plate 6 when descending so as to provide friction force for braking the moving platform 2 and/or the conveying belt 3, and similarly, the dynamic friction plate 5 is far away from the static friction plate 6 when ascending;

the pressure assembly 7 has the functions of providing power for the dynamic friction plate 5 and applying pressure between the dynamic friction plate 5 and the static friction plate 6;

the pressure component 7 and the dynamic friction plate 5 can be arranged on the moving platform 2, and correspondingly, the static friction plate 6 is arranged on the guide rail bracket 1, and similarly, the pressure component 7 and the dynamic friction plate 5 can also be arranged on the guide rail bracket 1, and correspondingly, the static friction plate 6 is arranged on the moving platform 2.

Specifically, as shown in fig. 1 and 2, the pressure assembly 7 is composed of a mounting seat 71 and a stepping linear motor, the stepping linear motor is mounted in the mounting seat 71, and the mounting seat 71 is fixedly connected with the guide rail bracket 1;

and a telescopic rod of the stepping linear motor is in transmission connection with the dynamic friction plate 5 so as to drive the dynamic friction plate 5 to lift.

Further, in order to better control the pressure between the dynamic friction plate 5 and the static friction plate 6, an elastic member is used to connect the dynamic friction plate 5 and the telescopic rod of the stepping linear motor, specifically: a guide rail in the up-down direction is arranged in the mounting seat 71, a sliding block 73 fixedly connected with a telescopic rod of the stepping linear motor is arranged in the guide rail, the sliding block 73 can move up and down, an elastic piece 74 is arranged between the sliding block 73 and the movable friction plate 5, two ends of the elastic piece 74 are respectively connected with the sliding block 73 and the movable friction plate 5, and the elastic piece 74 is preferably an air spring.

Referring to fig. 3, in order to avoid that the friction force between the dynamic friction plate 5 and the static friction plate 6 is too small to cause the moving platform 2 to exceed the designated station interval, a stop ramp 61 is arranged on the static friction plate 6, a positioning tube 62 is fixedly arranged on the stop ramp 61, a spring 63 for connecting the stop ramp 61 and the static friction plate 6 is arranged in the positioning tube 62, when the dynamic friction plate 5 contacts the stop ramp 61, the dynamic friction plate 5 drives the stop ramp 61 to move, and when the dynamic friction plate 5 stops, the spring 63 drives the stop ramp and the dynamic friction plate 5 to slide back to the designated station interval.

The control system can control the pressure between the static friction plate and the dynamic friction plate in the following mode: calculating the extension distance of the telescopic rod required when the pressure between the specified static friction plate and the specified dynamic friction plate is reached, and then controlling the telescopic rod to extend the specified distance, specifically:

the guide rail bracket 1 is provided with a trigger switch for starting the pressure assembly 7 when the mobile platform 2 moves to a specified position, and the trigger mode of the trigger switch includes but is not limited to: triggering through a photoelectric distance measuring sensor;

the distance between the mobile platform and the photoelectric distance measuring sensor is measured by the photoelectric distance measuring sensor, and the time for starting the pressure assembly 7 is selected according to the braking stroke S of the mobile platform, namely when the photoelectric distance measuring sensor receives a certain specific distance signal, the trigger switch is triggered, and the processes can be controlled by the control system;

the control system comprises a central processing unit module, a signal acquisition module, an actuator module and a sensor group;

the central processing unit module is used for calculating the pressure F between the static friction plate and the dynamic friction plate according to the total weight M and the speed V of the product and the moving platform, the friction coefficient mu S1 between the product and the moving platform, the friction coefficient mu S2 between the static friction plate and the dynamic friction plate and the braking stroke S, and the calculation formula is as follows:

F＝MV²/(2μs2*S),

if the product is ensured not to slide, the following steps are required:

V²/2μs1<S，

in addition, according to the elastic coefficient k of the elastic part and the initial distance l between the static friction plate and the dynamic friction plate, the moving distance of the telescopic rod of the stepping linear motor can be calculated:

δL＝F/k+l＝MV²/(2μs2*S*k)+l，

therefore, the expected braking effect can be achieved by moving the telescopic rod of the stepping linear motor by the distance delta L;

after the data are calculated, a control signal is sent through an actuator module of the central processor module, and a command is executed through an actuator;

the proper pressure F between the static friction plate and the dynamic friction plate ensures that the moving platform stops in a designated station interval on the premise of ensuring that products do not topple and slide;

the actuator is a driver of the stepping linear motor.

The sensor group includes: the device comprises a pressure sensor a for detecting the weight of a product placed on a moving platform, a pressure sensor b for detecting the pressure between a static friction plate and a dynamic friction plate, a speed sensor for detecting the moving speed of the moving platform and a photoelectric distance measuring sensor for detecting the position of the moving platform.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.