A fully automatic feeding device

Abstract

The application provides a kind of full-automatic feeding device, one end of feed pipe assembly is installed material clamping assembly, material pickup assembly is arranged below clamping assembly, and material advancing assembly is arranged between clamping assembly and material pickup assembly, and material advancing assembly and material pickup assembly are respectively fixedly connected to sample conveying mechanism.The full-automatic feeding device provided in the application, the staff or external mechanical hand only needs to put spherical fuel into feed pipe assembly, the material clamping assembly in feed pipe assembly is used to open and close the inlet passage of feed pipe assembly material pickup mechanism, then orderly push into sample conveying mechanism through material advancing assembly, solve the high-efficiency automatic feeding function of high-efficiency spherical fuel element of existing CT scanning system, can realize automatic feeding of multiple fuel elements on mass production line, more in single feeding, solve time and labor cost, flexible and convenient.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of automatic feeding of spherical fuel, and particularly relates to a full-automatic feeding device. BACKGROUND

[0002] High temperature gas cooled reactors are divided into prismatic reactors and pebble bed reactors. Among them, the spherical fuel used in the pebble bed high temperature gas cooled reactor can be transported in the pipeline by high pressure gas, so it is easier to realize continuous non-stop fuel circulation and replacement, and it shows higher flexibility and controllability. Therefore, China has listed the pebble bed high temperature gas cooled reactor as a national major special project. Among them, the HTR-10 project and the HTR-PM project have reached the criticality, and after that, multiple units will be built and put into production. With the maturity and popularization of the pebble bed high temperature gas cooled reactor in China, the demand for spherical fuel will inevitably increase day by day. The spherical fuel that has been actually put into production and application is mainly composed of a fuel area with a diameter of about 50 mm and a fuel-free area with a wall thickness of about 5 mm. The surface of the spherical fuel is coated with a graphite matrix, which needs to be applied in the production process. CT scanning is used to irradiate its internal structure to determine the product quality. The existing CT scanning irradiation is manually operated, and the work efficiency is low, and the quality of the feeding detection is uncontrollable. SUMMARY

[0003] Therefore, the present application aims to provide a full-automatic feeding device to solve the problems that the existing CT scanning system cannot realize automatic feeding of spherical fuel elements with high efficiency, the work efficiency is low, and the feeding time interval is unstable.

[0004] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0005] A full-automatic feeding device, the automatic feeding mechanism includes a feeding pipe assembly, a material clamping assembly, a material pushing assembly and a material picking mechanism, one end of the feeding pipe assembly is installed with the material clamping assembly, the material clamping assembly is provided below the material picking mechanism, and the material pushing assembly is provided between the material clamping assembly and the material picking mechanism, and the material pushing assembly and the material picking mechanism are respectively fixedly connected to the sample conveying mechanism.

[0006] Further, the sample conveying mechanism includes a bracket, a conveyor belt, a driving wheel and a driven wheel, both ends of the driving wheel and both ends of the driven wheel are rotatably sleeved into the bracket, and the periphery of the driving wheel and the periphery of the driven wheel are connected by a transmission belt to form a synchronous rotation structure, one end of the driving wheel is fixedly connected to the transmission shaft of the power motor, and the periphery of the power motor is fixedly connected to the bracket, a carrier for containing the to-be-inspected product is fixedly installed on the conveyor belt, and the upper end of the carrier is provided with a groove matched with the to-be-inspected product.

[0007] Further, the feeding pipe assembly comprises a first steel pipe, a first assisting device and a feeding detection opposite sensor, the first steel pipe is fixedly connected to the front-stage protection box by a fixing bolt hoop, the first steel pipe is used for defining the movement track of the to-be-inspected product, and the to-be-inspected product rolls in the first steel pipe, the feeding detection opposite sensor is arranged in the first steel pipe and is used for the existence of the to-be-inspected product in the first steel pipe, the first assisting device is arranged in the first steel pipe, the first assisting device is a gas pipe, the first assisting device accelerates the rolling of the to-be-inspected product in the first steel pipe by blowing gas, and one end of the first steel pipe is provided with a material clamping assembly.

[0008] Further, the material clamping assembly comprises a cylinder fixing seat, a clamping cylinder, a gas claw finger, a material presence detection sensor and a finger pad block, one side of the clamping cylinder is fixedly connected to the periphery of one end of the first steel pipe through the cylinder fixing seat, one end of the clamping cylinder is provided with the gas claw finger, the other end of the clamping cylinder is provided with the finger pad block, a gap for preventing the material is arranged between the gas claw finger and the finger pad block, and the material presence detection sensor is arranged on the clamping cylinder and is used for detecting the existence of the to-be-inspected product in the gap.

[0009] Further, the material pickup mechanism comprises a vacuum chuck, a T-shaped pipe joint, a jacking cylinder and a vacuum generator, the vacuum chuck is arranged at the upper end of the T-shaped pipe joint and is located below the material clamping assembly, the periphery of the T-shaped pipe structure is fixedly installed on the movable plate of the jacking cylinder, the periphery of the jacking cylinder is fixedly connected to one side of the sample conveying mechanism, one side of the jacking cylinder is provided with the vacuum generator, one end of the vacuum generator is connected to the gas pump through a pipeline, and the other end of the vacuum generator is connected to the T-shaped pipe joint through a pipeline.

[0010] Further, the material pickup mechanism comprises a vacuum chuck, a T-shaped pipe joint, a jacking cylinder and a vacuum generator, the vacuum chuck is arranged at the upper end of the T-shaped pipe joint and is located below the material clamping assembly, the periphery of the T-shaped pipe structure is fixedly installed on the movable plate of the jacking cylinder, the periphery of the jacking cylinder is fixedly connected to one side of the sample conveying mechanism, one side of the jacking cylinder is provided with the vacuum generator, one end of the vacuum generator is connected to the gas pump through a pipeline, and the other end of the vacuum generator is connected to the T-shaped pipe joint through a pipeline.

[0011] Compared with the prior art, the full-automatic feeding device has the following beneficial effects:

[0012] (1) The full-automatic feeding device, the worker or the external mechanical hand only needs to put the spherical fuel into the feeding pipeline assembly, the material clamping assembly in the feeding pipeline assembly is used for opening and closing the feeding passage of the material picking mechanism of the feeding pipeline assembly, then the material is sequentially pushed into the sample conveying mechanism through the material pushing assembly, the high-efficiency automatic feeding function of the spherical fuel element of the existing CT scanning system is solved, a large batch of automatic feeding of multiple fuel elements on a production line can be realized, the number of single feeding is large, the time and labor cost are solved, and the device is flexible and convenient.

[0013] (2) The full-automatic feeding device, the clamping cylinder clamps the material, the lifting cylinder drives the vacuum chuck to suck the material, and the rodless cylinder sequentially slides the material, the working principle and the structure are simple, easy to install and maintain, the telescopic speed is fast, the speed of picking up and conveying multiple fuel elements is high, the device can normally work in high-temperature and low-temperature environments and has dustproof and waterproof capabilities, and can adapt to various harsh environments. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and the illustrative embodiments of the present application and their description are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0015] Figure 1 The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and the illustrative embodiments of the present application and their description are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0016] Figure 2 The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and the illustrative embodiments of the present application and their description are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0017] Figure 3 The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and the illustrative embodiments of the present application and their description are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0018] Figure 4 The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and the illustrative embodiments of the present application and their description are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0019] Figure 5 The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and the illustrative embodiments of the present application and their description are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0020] BRIEF DESCRIPTION OF DRAWINGS

[0021] 1, automatic feeding mechanism;11, feeding pipe assembly;111, first steel pipe;112, first booster device;113, feeding detection opposite sensor;114, fixed hoop;12, material clamping assembly;121, cylinder fixing seat;122, clamping cylinder;123, gas claw finger;13, material picking mechanism;131, vacuum chuck;132, T-shaped pipe joint;133, jacking cylinder;134, vacuum generator;14, material pushing assembly;141, module base;142, module lead screw;143, module motor;144, module sliding table;145, sliding groove;146, rodless cylinder;147, sliding plate;2, sample conveying mechanism;21, support;22, conveyor belt;23, carrier;3, sample to be inspected. DETAILED DESCRIPTION

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0024] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between the two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0025] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0026] As Figures 1-5As shown, a fully automatic feeding device includes an automatic feeding mechanism 1 comprising a feeding pipe assembly 11, a material clamping assembly 12, a material pushing assembly 14, and a material picking mechanism 13. The material clamping assembly 12 is installed at one end of the feeding pipe assembly 11, and the material picking mechanism is located below it. The material pushing assembly 14 is positioned between the material clamping assembly and the material picking mechanism. The material pushing assembly 14 and the material picking mechanism are respectively fixedly connected to the sample conveying mechanism 2. Operators or external robotic arms only need to place spherical fuel elements into the feeding pipe assembly 11. The material clamping assembly 12 within the feeding pipe assembly 11 is used to open and close the feeding passage of the material picking mechanism 13 within the feeding pipe assembly 11. Then, the material is pushed into the sample conveying mechanism 2 in an orderly manner by the material pushing assembly 14. This device solves the problem of high-efficiency automatic feeding of spherical fuel elements in existing CT scanning systems, enabling automatic feeding of multiple fuel elements on mass production lines. It allows for multiple feedings per batch, reducing time and labor costs, and is flexible and convenient.

[0027] The sample conveying mechanism 2 includes a support 21, a conveyor belt 22, a drive wheel, and a driven wheel. The two ends of the drive wheel and the two ends of the driven wheel are respectively rotatably sleeved into the support 21, and the periphery of the drive wheel and the periphery of the driven wheel form a synchronous rotation structure through the transmission belt. One end of the drive wheel is fixedly connected to the drive shaft of the power motor, and the periphery of the power motor is fixedly connected to the support 21. A carrier 23 for holding the sample 3 to be inspected is fixedly installed on the conveyor belt 22. The upper end of the carrier 23 is provided with a groove that matches the sample 3 to be inspected, which facilitates the stable conveying of spherical fuel. The sample conveying mechanism 2 conveys materials through the rubber conveyor belt 22, which is easy for X-rays to penetrate, which is beneficial for high-resolution observation and analysis of sample defects.

[0028] The feed pipe assembly 11 includes a first steel pipe 111, a first assist device 112, and a feed detection through-beam sensor 113. The first steel pipe 111 is fixedly connected to the front-stage protective box by a fixing clamp 114. The first steel pipe 111 is used to limit the movement trajectory of the sample 3 to be inspected, and the sample 3 to be inspected rolls inside the first steel pipe 111. The feed detection through-beam sensor 113 is installed inside the first steel pipe 111 to detect the presence of the sample 3 to be inspected inside the first steel pipe 111. The first assist device 112 is installed inside the first steel pipe 111. The first assist device 112 is an air pipe. The first assist device 112 accelerates the rolling of the sample 3 to be inspected inside the first steel pipe 111 by air blowing. A material clamping assembly 12 is installed at one end of the first steel pipe 111.

[0029] like Figure 2 The cross-section of the first steel pipe shown is a Z-shaped structure. The Z-shaped structure is used to prevent rays from overflowing from the straight pipe body. At the same time, a first assist device 112 is installed at each corner to prevent materials from getting stuck at this point.

[0030] The material clamping assembly 12 comprises a cylinder fixing seat 121, a clamping cylinder 122, a claw finger 123, a material absence detection sensor and a finger pad. One side of the clamping cylinder 122 is fixedly connected to the outer periphery of one end of the first steel pipe 111 through the cylinder fixing seat 121, and one end of the clamping cylinder 122 is provided with the claw finger 123. The other end of the clamping cylinder 122 is provided with the finger pad. A gap for preventing material is arranged between the claw finger 123 and the finger pad. The material absence detection sensor is arranged on the clamping cylinder 122. The material absence detection sensor is used for detecting the presence of the product 3 in the gap. The material absence detection sensor is an existing photoelectric sensor. The sensor is sensitive and can accurately detect the position of the carrier 23, so that rapid and accurate feeding is realized. The clamping cylinder 122 is a finger cylinder of the prior art. The clamping cylinder 122 has large pre-tightening force. When multiple fuel elements are clamped, more than 10 original elements can be stacked above the clamping cylinder 122, so that the feeding efficiency is improved, the feeding frequency at the pipe opening is reduced, and the labor cost is saved.

[0031] The material pickup mechanism 13 comprises a vacuum chuck 131, a T-shaped pipe joint 132, a jacking cylinder 133 and a vacuum generator 134. The vacuum chuck 131 is arranged at the upper end of the T-shaped pipe joint 132, and the vacuum chuck 131 is located below the material clamping assembly 12. The T-shaped pipe structure is fixedly installed on the movable plate of the jacking cylinder 133. The jacking cylinder 133 is fixedly connected to one side of the sample conveying mechanism 2. The jacking cylinder 133 is provided with the vacuum generator 134 on one side. One end of the vacuum generator 134 is connected to the air pump through a pipeline. The other end of the vacuum generator 134 is connected to the T-shaped pipe joint 132 through a pipeline.

[0032] The material pushing assembly 14 comprises a module base 141, a module lead screw 142, a module motor 143 and a module sliding table 144. The outer periphery of the module base 141 is fixedly connected to one side of the sample conveying mechanism 2. The outer rotating sleeve of the module lead screw 142 is connected to the upper end of the module base 141. One end of the module lead screw 142 is fixedly connected to the transmission shaft of the module motor 143. The outer periphery of the module motor 143 is fixedly connected to the outer periphery of the module base 141. The module sliding table 144 is provided with a threaded hole in the middle. The outer periphery of the module lead screw 142 is screw-connected to the threaded hole. The lower end of the module sliding table 144 is slidingly connected to the upper end of the module base 141. The module sliding table 144 is located between the material pushing assembly 14 and the material pickup mechanism. The linear lead screw module has small friction loss, high transmission efficiency and high precision, can realize high-speed feeding and micro-feeding, and has reversibility during driving.

[0033] The working principle of the clamping cylinder 122 clamping the material, the lifting cylinder 133 driving the vacuum chuck 131 to suck the material and the rodless cylinder 146 driving the material to slide orderly, and the simple structure is easy to install and maintain, the telescopic speed is fast, the speed block of taking and transporting multiple fuel elements, can work normally in high temperature and low temperature environment and has dustproof and waterproof ability, and can adapt to various harsh environments.

[0034] The working process of the automatic feeding mechanism 1 is as follows:

[0035] The worker or external automatic equipment puts the to-be-inspected product 3 into the first steel pipe 111, and the to-be-inspected product 3 is a spherical fuel. The to-be-inspected product 3 rolls into the first steel pipe 111 under the action of gravity. The built-in feeding detection opposite sensor 113 in the first steel pipe 111 detects the existence of the to-be-inspected product 3 and signals the controller. The controller connects compressed air to the first power device 112 through the air pump. The compressed air generates a thrust on the spherical fuel in the first steel pipe 111, which pushes or speeds up the movement of the to-be-inspected product 3. When the to-be-inspected product 3 moves to the discharge end of the first steel pipe 111, the periphery of the to-be-inspected product 3 is limited and clamped by the air claw fingers 123 and the finger pad block. At the same time, the no-material detection sensor detects the existence of the material in the gap and signals the controller. The controller controls the air pump to blow air into the lifting cylinder 133 and the vacuum generator 134. After the lifting cylinder 133 drives the vacuum chuck 131 to rise, the air pump blows air into the clamping cylinder 122. The clamping cylinder 122 drives the air claw fingers 123 and the finger pad block to move relatively. The to-be-inspected product 3 slides from the gap to the sliding groove 145 and the material groove, and is positioned by the vacuum chuck 131. Then the air pump stops blowing air into the vacuum generator 134 and starts to suck air into the clamping cylinder 122. The to-be-inspected product 3 is in a relaxed state. Then the controller controls the air pump to blow air into the rodless cylinder 146. The rodless cylinder 146 drives the to-be-inspected product 3 to slide along the sliding groove 145 by the sliding plate 147 until the to-be-inspected product 3 slides from the first through hole to the carrier 23.

[0036] The working process of the sample conveying mechanism 2 is as follows:

[0037] The driving shaft of the power motor drives the driving wheel to rotate. The driving wheel, the driven wheel and the conveyor belt 22 constitute a synchronous transmission, that is, the transmission belt drives the carrier 23 to make reciprocating motion. Two photoelectric sensors are arranged on the support 21. The No. 1 photoelectric sensor is used to detect the to-position information of the carrier 23, and the No. 2 photoelectric sensor is used to detect the existence information of the to-be-inspected product 3 on the carrier 23 and signals the controller. When the No. 1 photoelectric sensor detects that the carrier 23 is in place, the clamping cylinder 122 drives the air claw fingers 123 and the finger pad block to move relatively. The to-be-inspected product 3 slides from the gap to the sliding groove 145 and the material groove, and is displaced to above the carrier 23 by the sliding plate 147. When the No. 2 photoelectric sensor detects that the to-be-inspected product 3 exists on the carrier 23, the power motor drives the conveyor belt 22 to step convey.

[0038] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fully automatic feeding device, characterized in that: The feeding pipe assembly (11) is provided with a material clamping assembly (12) at one end, the material clamping assembly (12) is provided with a material pickup mechanism (13) below, and the material clamping assembly (12) and the material pickup mechanism (13) are provided with a material pushing assembly (14) therebetween, and the material pushing assembly (14) and the material pickup mechanism (13) are fixedly connected to the sample conveying mechanism (2) respectively. The feeding pipe assembly (11) includes a first steel pipe (111), a first booster device (112) and a feeding detection opposite sensor (113), the first steel pipe (111) is fixedly connected to the inside of the front protection box through a fixed bolt hoop (114), the first steel pipe (111) is used to define the movement track of the sample (3), and the sample (3) rolls inside the first steel pipe (111), the feeding detection opposite sensor (113) is arranged in the first steel pipe (111), the feeding detection opposite sensor (113) is used to detect the presence of the sample (3) in the first steel pipe (111), the first booster device (112) is arranged in the first steel pipe (111), the first booster device (112) is a gas pipe, the first booster device (112) accelerates the rolling of the sample (3) in the first steel pipe (111) through air blowing, and the material clamping assembly (12) is arranged at one end of the first steel pipe (111). The sample conveying mechanism (2) includes a support (21), a conveying belt (22), a driving wheel and a driven wheel, the two ends of the driving wheel and the two ends of the driven wheel are rotatably sleeved into the support (21), the periphery of the driving wheel and the periphery of the driven wheel are connected through a transmission belt to form a synchronous rotation structure, one end of the driving wheel is fixedly connected to the transmission shaft of a power motor, and the periphery of the power motor is fixedly connected to the support (21), and the conveying belt (22) is fixedly provided with a carrier (23) for containing the sample (3).

2. The fully automatic feeding device according to claim 1, characterized in that: The upper end of the carrier (23) is provided with a groove matched with the sample (3).

3. The fully automatic feeding device according to claim 1, characterized in that: The material clamping assembly (12) includes a cylinder fixing seat (121), a clamping cylinder (122), a gas claw finger (123), a material presence detection sensor and a finger pad, one side of the clamping cylinder (122) is fixedly connected to the periphery of one end of the first steel pipe (111) through the cylinder fixing seat (121), one end of the clamping cylinder (122) is provided with the gas claw finger (123), the other end of the clamping cylinder (122) is provided with the finger pad, a gap for preventing material is arranged between the gas claw finger (123) and the finger pad, and the material presence detection sensor is arranged on the clamping cylinder (122).

4. The fully automatic feeding device according to claim 1, characterized in that: The material pickup mechanism (13) comprises a vacuum chuck (131), a T-shaped pipe joint (132), a lifting cylinder (133) and a vacuum generator (134), the vacuum chuck (131) is arranged at the upper end of the T-shaped pipe joint (132), and the vacuum chuck (131) is located below the material clamping assembly (12); the outer periphery of the T-shaped pipe joint is fixedly installed on the movable plate of the lifting cylinder (133); the outer periphery of the lifting cylinder (133) is fixedly connected to one side of the sample conveying mechanism (2); the vacuum generator (134) is arranged on one side of the lifting cylinder (133); one end of the vacuum generator (134) is connected to the air pump through a pipeline; and the other end of the vacuum generator (134) is connected to the T-shaped pipe joint (132) through a pipeline.

5. The fully automatic feeding device according to claim 1, characterized in that: The material pushing assembly (14) comprises a module base (141), a module lead screw (142), a module motor (143) and a module sliding table (144), the outer periphery of the module base (141) is fixedly connected to one side of the sample conveying mechanism (2), the outer rotating sleeve of the module lead screw (142) is connected to the upper end of the module base (141), one end of the module lead screw (142) is fixedly connected to the transmission shaft of the module motor (143), the outer periphery of the module motor (143) is fixedly connected to the outer periphery of the module base (141), the middle part of the module sliding table (144) is provided with a threaded hole, the outer periphery of the module lead screw (142) is screw-connected to the threaded hole, the lower end of the module sliding table (144) is slidingly connected to the upper end of the module base (141), and the module sliding table (144) is located between the material pushing assembly (14) and the material pickup mechanism (13).

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