CN220375712U - Device for guiding materials into microwave resonant cavity without influence of push rod - Google Patents

Abstract

The utility model provides a device for guiding materials into a microwave resonant cavity without influence of a push rod, which is characterized by comprising a pushing mechanism, a discharging mechanism, a receiving mechanism and a microwave resonant cavity; the discharging mechanism comprises a hopper and a material bearing assembly; the material bearing assembly is provided with a plurality of material bearing grooves, and the hopper is positioned above the material bearing assembly and is used for discharging materials to the material bearing grooves; the material pushing mechanism and the material receiving mechanism are respectively positioned at two ends of the material bearing mechanism, and the microwave resonant cavity is positioned between the material bearing groove and the material receiving mechanism; the material pushing mechanism pushes materials from one end of the material bearing groove to the other end, one end of the materials passes through the microwave resonant cavity, and the material receiving mechanism receives the materials and pulls the other end of the materials out of the microwave resonant cavity. Through pushing and receiving cooperation, the push rod is prevented from entering the resonant cavity, and therefore microwave detection accuracy is guaranteed.

Description

Device for guiding materials into microwave resonant cavity without influence of push rod

Technical Field

The utility model relates to the technical field of microwave resonance detection, in particular to a device for guiding materials into a microwave resonant cavity without influence of a push rod.

Background

The microwave resonance detection device has the function of nondestructively, rapidly and accurately detecting the characteristics of objects, and is applied to various industries such as tobacco, food, medicine and the like.

The microwave resonance detection device mainly comprises a material conveying system, a microwave detection system and a data analysis processing system. The material conveying system mainly comprises a feeding hopper, a rotating wheel with a guide groove, a feeding groove, a driving device, a discharging mechanism and the like. The material is led into the microwave resonant cavity at a constant speed. The microwave detection system mainly comprises a signal generator, a microwave resonant cavity, a radio frequency detection module and the like. The generation of microwave signals and the detection of the characteristics such as microwave amplitude frequency are realized. The data analysis processing system is used for receiving the data from the microwave detection system and outputting a measurement result after processing.

In the existing microwave resonance detection device, materials are led into a microwave resonant cavity by a multi-purpose push rod driven by a motor, and the microwave resonant cavity has a certain thickness, so that the push rod enters the microwave resonant cavity to seriously interfere with the detection accuracy of a detected object, as shown in fig. 4, a curve in fig. 4 is divided into two stages, the former stage is detection data when the push rod does not enter the resonant cavity, the whole data is stable and regular, and when the push rod is continuously pushed into the resonant cavity, the data obviously fluctuates and is irregular. The identification and correction of the interfered data are carried out later, which negatively affects the accuracy and the detection efficiency of the detection data.

Disclosure of Invention

The utility model aims to solve the technical problem of how to solve the problem that a push rod enters a resonant cavity to influence a detection result during microwave resonance detection.

The utility model solves the technical problems by the following technical means:

the device without the push rod affecting the material leading-in of the microwave resonant cavity comprises a pushing mechanism, a discharging mechanism, a receiving mechanism and a microwave resonant cavity (1);

the discharging mechanism comprises a hopper (21) and a material bearing assembly; the material bearing assembly is provided with a plurality of material bearing grooves (221), and the hopper (21) is positioned above the material bearing assembly and discharges materials to the material bearing grooves (221); the pushing mechanism and the receiving mechanism are respectively positioned at two ends of the material bearing mechanism, and the microwave resonant cavity (1) is positioned between the material bearing groove (221) and the receiving mechanism; the pushing mechanism pushes the material (10) from one end of the material bearing groove (221) to the other end, so that one end of the material (10) passes through the microwave resonant cavity (1), and when the material can be received by the receiving mechanism, the pushing mechanism stops advancing; the receiving mechanism receives the material (10) and pulls the other end of the material (10) out of the microwave resonant cavity (1).

According to the utility model, through the cooperation of the pushing mechanism and the receiving mechanism, the push rod does not enter the resonant cavity while the material passes through the microwave resonant cavity, so that the detection result is not influenced by the push rod.

Further, the material bearing assembly comprises a material bearing roller (22) and a baffle plate (23); the hopper (21) is positioned above the material bearing roller (22); the surface of the material bearing roller (22) is provided with a plurality of material bearing grooves (221) along the axial direction, the baffle plate (23) is an arc-shaped plate matched with the shape of the material bearing roller (22), and when the material bearing roller (22) rotates, the material (10) is carried to rotate by a limiting cavity formed by the material bearing grooves (221) and the baffle plate (23); a push rod groove (231) is formed in the bottom of the baffle plate (23) along the axial direction of the material bearing roller (22); the pushing mechanism comprises a pushing rod (31); the push rod (31) moves along the push rod groove (231) to push the material (10) to move towards the microwave resonant cavity (1).

Further, the baffle plate (23) is semi-circular arc-shaped.

Further, the pushing mechanism comprises a first conveyor belt (32) and a first driving motor (33); the push rod (31) is fixed on the first conveyor belt (32), and the first driving motor (33) drives the first conveyor belt (32) to rotate forwards and backwards, so that the push rod (31) is driven to move forwards or backwards.

Further, the push rod (31) is a rod body which is vertically arranged, and is fixed with the first conveyor belt (32) in one mode of welding, gluing and bolting.

Further, a material pillow (311) is further fixed on one side, facing the material (10), of the push rod (31), the material pillow (311) and a section of rod body at the top of the push rod (31) form a step, and the end part of the material (10) is clamped on the step.

Further, the material receiving mechanism comprises a second conveyor belt (41), a manipulator (42) and a linkage chain wheel (43); the manipulator (42) is fixed on the second conveyor belt (41), and the linkage chain wheel (43) drives the second conveyor belt (41) to rotate positively and negatively, so that the manipulator (42) is driven to do linear reciprocating motion; the mechanical arm (42) clamps the material (10) and pulls the material out of the microwave resonant cavity (1), and the movement direction of the mechanical arm (42) is opposite to the movement direction of the push rod (31).

Further, a magazine (6) is placed under the robot arm (42).

Further, the edge of the bottom of the baffle plate (23) extends upwards to form a convex edge (232), and the material (10) is limited in a cavity enclosed by the baffle plate (23), the convex edge (232) and the material bearing groove (221).

Further, a limit groove 233 extends from one side of the baffle (23) facing the microwave resonant cavity (1), and the limit groove (233) is fixed with the microwave resonant cavity (1); the material (10) is pushed out by the push rod (31) and then enters the microwave resonant cavity (1) along the limit groove (233).

The utility model has the advantages that:

a plurality of materials are put in the hopper, the materials enter the material bearing groove from the material discharging opening, the materials are brought to the bottom of the baffle under the rotation action of the material bearing roller, the first driving motor is started, the push rod pushes the materials to advance and pass through the microwave resonant cavity, at the moment, the mechanical arm is reset to the grabbing position, when the manipulator is started to grab materials and then the first driving motor rotates reversely, the push rod moves back to the initial position, the manipulator carries the materials and pulls the materials out of the microwave resonant cavity completely, and the manipulator is loosened, so that the materials fall into the material box. The microwave detection can be carried out on a plurality of materials by repeating the actions, and in the detection process, the push rod and the manipulator cannot enter the microwave resonant cavity, so that the detection result cannot be influenced.

Drawings

FIG. 1 is a schematic diagram of a pushing mechanism side of an apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a side-up structure of an apparatus according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a material receiving side of the device according to the embodiment of the present utility model;

fig. 4 is a graph showing the change of data after the push rod enters the microwave cavity, which is introduced in the background of the utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment discloses a device for guiding materials into a microwave resonant cavity without influence of a push rod, which comprises a pushing mechanism, a discharging mechanism, a receiving mechanism and a microwave resonant cavity 1;

as shown in fig. 1 and 2, the discharging mechanism comprises a hopper 21 and a material bearing assembly; the material bearing assembly is provided with a plurality of material bearing grooves 221, the hopper 21 is positioned above the material bearing assembly, and the material bearing grooves 221 are discharged; the pushing mechanism and the receiving mechanism are respectively positioned at two ends of the material bearing mechanism, and the microwave resonant cavity 1 is positioned between the material bearing groove 221 and the receiving mechanism; the pushing mechanism pushes the material 10 from one end of the material bearing groove 221 to the other end, so that one end of the material 10 passes through the microwave cavity 1, and the receiving mechanism receives the material 10 and pulls the other end of the material 10 out of the microwave cavity 1.

Specifically, the material bearing assembly comprises a material bearing roller 22 and a baffle plate 23; the hopper 21 is positioned above the material bearing roller 22; the surface of the material bearing roller 22 is uniformly provided with a plurality of material bearing grooves 221 along the axial direction, and the material bearing rollers are driven to rotate by a driving motor. The baffle 23 is an arc-shaped plate matched with the shape of the material bearing roller 22, and the semicircular arc-shaped plate is adopted in the embodiment, so that the material 10 is conveyed to the bottom of the material bearing roller 22 to be pushed conveniently. When the material bearing roller 22 rotates, the material 10 is carried by a limiting cavity formed by the material bearing groove 221 and the baffle plate 23 to rotate; the bottom of the baffle plate 23 is provided with a push rod groove 231 along the axial direction of the material bearing roller 22; the pushing mechanism comprises a push rod 31; the push rod 31 moves along the push rod groove 231 to push the material 10 to move towards the microwave cavity 1. In this embodiment, the length of the push rod groove 231 is only required to push one end of the material 10 through the microwave cavity 1 and reach the receiving mechanism to be received, and does not need to penetrate through the whole baffle 23. A rectangular discharging hole matched with the length of the material 10 is formed at the bottom of the hopper 21 and corresponds to the material bearing groove 221. In order to simplify the structure, the top of the baffle 23 is fixed with the bottom of the hopper 21, and the baffle 23 is fixed when the hopper 21 is fixed. The distance between the discharge opening of the hopper 21 and the material receiving groove 221 only needs to ensure that the rotation of the material receiving roller 22 after the material 10 falls into the material receiving groove 221 is not influenced, and certainly, the distance cannot be too high, so that the mechanical damage caused by the falling of the material 10 is avoided.

The pushing mechanism comprises a first conveyor belt 32, a first driving motor 33 and a pushing rod 31; the push rod 31 is fixed on the first conveyor belt 32, and the first driving motor 33 drives the first conveyor belt 32 to rotate forward and backward, so as to drive the push rod 31 to move forward or backward. In this embodiment, the belt or chain may be used to tighten the driving wheel and the driven wheel, the driving wheel is driven by the first driving motor 33, and the first driving motor 33 may rotate forward and backward, so that the forward and backward movement of the belt may drive the push rod 31 to do a linear movement. The push rod 31 is a rod body vertically arranged, and can be fixed with the first conveyor belt 32 by welding or gluing or bolts. The material pillow 311 is further protruded on one side of the push rod 31 facing the material 10, the material pillow 311 and a section of rod body at the top of the push rod 31 form a step, when the material 10 is pushed, the end part of the material 10 is lapped on the material pillow 311 and limited in the step, and the top of the push rod 31 is approximately positioned at the center of the material 10 to be pushed. In the initial state, the push rod 31 is located at one end of the first conveyor belt 32 and is located at one end of the material 10 to be pushed away from the microwave cavity 1. When the material 10 needs to be pushed, the first driving motor 33 is started to drive the conveyor belt to rotate forward, the push rod 31 moves forward along the push rod groove 231, meanwhile, the material 10 is pushed to move towards the microwave resonant cavity 1, when the other end of the material 10 passes through the microwave resonant cavity 1 and can be grabbed by the material receiving mechanism, pushing can be stopped, at the moment, the push rod 31 is at a certain distance from the microwave resonant cavity 1, and cannot extend into the microwave resonant cavity 1, so that detection cannot be influenced. Typically, the push rod 31 stops moving 1/3 to 1/2 of the trough 221, and the end of the push rod trough 231 is also located generally 1/3 to 1/2 of the trough 221. After the pushing is completed, the first driving motor 33 is started to rotate reversely, so that the push rod 31 can be reset.

After the other end of the material 10 passes through the microwave resonant cavity 1, the material receiving mechanism can be started. As shown in fig. 3, the receiving mechanism comprises a second conveyor belt 41, a manipulator 42 and a linkage sprocket 43; the manipulator 42 is fixed on the second conveyor belt 41, and the linkage chain wheel 43 drives the second conveyor belt 41 to rotate in the forward and reverse directions, so that the manipulator 42 is driven to do linear reciprocating motion; the robot arm 42 pulls the material 10 from the microwave cavity 1. In this embodiment, the first driving motor 33 drives the second conveyor belt 41 to rotate forward and backward through the linkage sprocket 43, and it should be noted that when the first driving motor 33 rotates forward, the push rod 31 moves forward, at this time, the second conveyor belt 41 rotates backward to drive the manipulator 42 to retract to the grabbing position, and when the first driving motor 33 rotates backward, the push rod 31 moves backward, at this time, the second conveyor belt 41 rotates forward to drive the manipulator to move forward, thereby realizing that one motor drives a plurality of components, saving cost and having simple control logic.

In this embodiment, the manipulator 42 may have an up-down height adjusting function, and also may correspond the position of the manipulator 42 to the height of the material 10, when the material 10 passes through the microwave cavity 1, the manipulator 42 is just penetrated, the manipulator 42 is started to grasp the material 10, and then the linkage sprocket 43 is started, so that the second conveyor belt 41 drives the manipulator 42 to advance, and the material 10 can be pulled out from the microwave cavity 1, at this time, the material 10 completely passes through the microwave cavity 1, and neither the push rod 31 nor the manipulator 42 enters the microwave cavity 1. In this embodiment, the lifting structure and the grabbing motion control of the manipulator 42 are both conventional, and will not be described in detail herein. A protective pad is fixed inside the manipulator 42, and the protective pad is made of an elastic material so as to protect the gripped material 10 from deformation. The second conveyor 41 is identical in structure to the first conveyor 32. In addition, the distance that the pushing rod 31 pushes the material 10 can ensure that the material 10 can be caught by the manipulator 42 through one end of the microwave cavity 1. The timing control of the material receiving mechanism and the material pushing mechanism can be controlled by the driving time of the first driving motor 33 and the linkage chain wheel 43, and the control circuit is the prior art and is not described in detail herein.

In this embodiment, the edge of the bottom of the baffle 23 extends upwards to form a convex edge 232, and the material 10 is limited in a cavity enclosed by the baffle 23, the convex edge 232 and the material bearing groove 221. The inner side of the convex edge 232 is a cambered surface which is matched with the shape of the material 10. A limit groove 233 extends from one side of the baffle 23 facing the microwave resonant cavity 1, and the limit groove 233 is fixed with the microwave resonant cavity 1; the material 10 is pushed out by the push rod 31 and then enters the microwave cavity 1 along the limit groove 233, so that the material 10 is smoothly pushed into the microwave cavity 1. A U-shaped bracket 5 is also secured between the microwave cavity 1 and the manipulator 42 for guiding the material 10.

In this embodiment, the hopper 21, the material bearing roller 22, the baffle 23, the push rod 31, the material pillow 311, the manipulator 42, the material box and the like are made of odorless rigid materials such as bamboo, wood, metal materials, polymer materials, ceramic materials, composite materials and the like, so as to ensure the quality of the shadowless material 10, stable placement and no deformation of the structure.

The working principle of the device in the embodiment is as follows: a plurality of materials are put in the hopper, the materials enter the material bearing groove from the material discharging opening, the materials are brought to the bottom of the baffle under the rotation action of the material bearing roller, the first driving motor is started, the push rod pushes the materials to advance and pass through the microwave resonant cavity, at the moment, the mechanical arm is reset to the grabbing position, when the manipulator is started to grab materials and then the first driving motor rotates reversely, the push rod moves back to the initial position, the manipulator carries the materials and pulls the materials out of the microwave resonant cavity completely, and the manipulator is loosened, so that the materials fall into the material box. The microwave detection can be carried out on a plurality of materials by repeating the actions, and in the detection process, the push rod and the manipulator cannot enter the microwave resonant cavity, so that the detection result cannot be influenced.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. The device for guiding the material into the microwave resonant cavity without the influence of the push rod is characterized by comprising a pushing mechanism, a discharging mechanism, a receiving mechanism and a microwave resonant cavity (1);

the discharging mechanism comprises a hopper (21) and a material bearing assembly; the material bearing assembly is provided with a plurality of material bearing grooves (221), and the hopper (21) is positioned above the material bearing assembly and discharges materials to the material bearing grooves (221); the pushing mechanism and the receiving mechanism are respectively positioned at two ends of the material bearing mechanism, and the microwave resonant cavity (1) is positioned between the material bearing groove (221) and the receiving mechanism; the material pushing mechanism pushes the material (10) from one end of the material bearing groove (221) to the other end, so that one end of the material (10) passes through the microwave resonant cavity (1), and when the material (10) can be received by the material receiving mechanism, the material pushing mechanism stops advancing; the receiving mechanism receives the material (10) and pulls the material (10) out of the microwave resonant cavity (1).

2. The device for guiding materials into the microwave resonant cavity without influence of the push rod according to claim 1, wherein the material bearing assembly comprises a material bearing roller (22) and a baffle plate (23); the hopper (21) is positioned above the material bearing roller (22); the surface of the material bearing roller (22) is provided with a plurality of material bearing grooves (221) along the axial direction, the baffle plate (23) is an arc-shaped plate matched with the shape of the material bearing roller (22), and when the material bearing roller (22) rotates, the material (10) is carried to rotate by a limiting cavity formed by the material bearing grooves (221) and the baffle plate (23); a push rod groove (231) is formed in the bottom of the baffle plate (23) along the axial direction of the material bearing roller (22); the pushing mechanism comprises a pushing rod (31); the push rod (31) moves along the push rod groove (231) to push the material (10) to move towards the microwave resonant cavity (1).

3. The device for guiding materials into a microwave cavity without influence of a push rod according to claim 2, wherein the baffle (23) is semi-circular.

4. A device for introducing materials into a microwave cavity without influence of a push rod according to claim 2 or 3, wherein the pushing mechanism comprises a first conveyor belt (32) and a first driving motor (33); the push rod (31) is fixed on the first conveyor belt (32), and the first driving motor (33) drives the first conveyor belt (32) to rotate forwards and backwards, so that the push rod (31) is driven to move forwards or backwards.

5. The device for guiding materials into the microwave resonant cavity without influence of the push rod according to claim 3, wherein the push rod (31) is a rod body arranged vertically and is fixed with the first conveyor belt (32) by one of welding, gluing and bolting.

6. A device for guiding materials into a microwave resonant cavity without influence of a push rod according to claim 2 or 3, characterized in that a material pillow (311) is fixed on one side of the push rod (31) facing the materials (10), the material pillow (311) and a section of rod body at the top of the push rod (31) form a step, and the end part of the materials (10) is lapped and limited on the step.

7. The device for guiding materials into the microwave resonant cavity without influence of the push rod according to claim 4, wherein the material receiving mechanism comprises a second conveyor belt (41), a manipulator (42) and a linkage sprocket (43); the manipulator (42) is fixed on the second conveyor belt (41), and the first driving motor (33) drives the second conveyor belt (41) to rotate in the forward and reverse directions through the linkage chain wheel (43), so that the manipulator (42) is driven to do linear reciprocating motion; the mechanical arm (42) clamps the material (10) and pulls the material out of the microwave resonant cavity (1), and the movement direction of the mechanical arm (42) is opposite to the movement direction of the push rod (31).

8. The device for introducing material into a microwave cavity without influence of a pushrod according to claim 7, characterized in that a material cassette (6) is placed under the manipulator (42).

9. A device for guiding materials into a microwave resonant cavity without influence of a push rod according to claim 2 or 3, wherein the edge of the bottom of the baffle plate (23) extends upwards to form a convex edge (232), and the materials (10) are limited in the cavity enclosed by the baffle plate (23), the convex edge (232) and the material bearing groove (221).

10. A device for guiding materials into a microwave resonant cavity without influence of a push rod according to claim 2 or 3, wherein a limit groove (233) extends out of one side of the baffle (23) facing the microwave resonant cavity (1), and the limit groove (233) is fixed with the microwave resonant cavity (1); the material (10) is pushed out by the push rod (31) and then enters the microwave resonant cavity (1) along the limit groove (233).