Material spreading device of X-ray sorting machine and material spreading method of material spreading device

Abstract

The invention discloses a spreading device of an X-ray sorting machine and a spreading method of the spreading device. The spreading device of the X-ray sorting machine further comprises a stacking opening, a supporting frame, a quantifying assembly, a conveying assembly, a synchronizing assembly and a spreading assembly. The stacking opening is formed in the top of the machine body, the bottom of the stacking opening extends into the machine body and is provided with a quantifying assembly, the supporting frame is arranged on one side of the machine body, and one end of the supporting frame extends into the machine body and is provided with the conveying assembly corresponding to the quantifying assembly; and the quantifying assembly is used for quantitatively outputting stacked materials in the stacking opening to the top end of the conveying assembly, and the quantifying assembly drives the flattening assembly to slide back and forth through the synchronizing assembly to process the materials on the conveying assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of X-ray sorting machines, and in particular to a material spreading device and a material spreading method for an X-ray sorting machine. Background Art

[0002] The sorting principle of the X-ray sorter is mainly to use the different absorption degrees of X-rays by different materials when X-rays penetrate objects, thus showing different image features. Through these image features, the X-ray sorter can identify and distinguish objects of different materials. Specifically, the workflow of the X-ray sorter includes the following steps: X-ray irradiation: The X-ray source emits X-rays to penetrate the object to be detected. Different materials absorb and scatter X-rays to different degrees, resulting in changes in the intensity of the transmitted X-rays. Image acquisition: The transmitted X-rays are received by the detector and converted into electrical signals. The detector is usually composed of multiple sensors, each of which corresponds to a pixel point to form a two-dimensional image. Image processing: The collected image data is processed by a computer to identify the distribution and characteristics of different substances. By analyzing the brightness, contrast and other features in the image, the material and structure of the object can be determined. Sorting execution: According to the results of image processing, the X-ray sorter separates the objects to different exits through mechanical devices. For example, different exit channels can be set up to classify and place the objects according to their materials.

[0003] In actual production, X-ray sorting machines are widely used in fields such as safety inspection, industrial inspection, waste recycling and food inspection. For example, in industrial and food inspection, they can be used to detect defects inside products; however, when materials enter the sorting machine, some materials will be stacked together, which will affect the efficiency and accuracy of sorting. Therefore, before sorting, the stacked materials need to be manually pushed down, and then sorted by the X-ray machine, which is a cumbersome operation process.

[0004] Therefore, it is proposed to propose an X-ray sorting machine material spreading device and a material spreading method for quantitatively pushing out stacked materials. Summary of the invention

[0005] The object of the present invention is to provide a material spreading device and a material spreading method for an X-ray sorting machine so as to solve the technical problem that manual material spreading is required in the sorting process of the existing X-ray sorting machine.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A material spreading device for an X-ray sorting machine comprises a machine body, and also comprises a stacking port, a support frame, a quantitative component, a transport component, a synchronization component and a leveling component; the stacking port is installed on the top of the machine body, the bottom of the stacking port extends into the interior of the machine body and is provided with a quantitative component, the support frame is provided on one side of the machine body, one end of the support frame extends into the interior of the machine body and is provided with the transport component corresponding to the quantitative component; the quantitative component is used to quantitatively output the stacked materials in the stacking port to the top of the transport component, and the quantitative component drives the leveling component to slide back and forth through the synchronization component to process the materials on the transport component.

[0008] Furthermore, the quantitative component includes a discharge port, a semicircular shell, a rotating shaft, a blocking piece, and a blocking plate; the discharge port is fixedly connected to the bottom of the stacking port, the discharge port is configured as a U-shaped discharge port, the opening of the discharge port is fixedly connected to the semicircular shell, the rotating shaft is rotatably installed between the front and rear walls of the discharge port, the blocking pieces are distributed in a circular array on the outside of the rotating shaft with the rotating shaft as the center, four blocking pieces are provided, and one end of the blocking piece away from the rotating shaft is rotatably adapted to the semicircular shell; the side wall of the stacking port away from the rotating shaft is also The blocking plate is installed, and the horizontal length of the blocking plate is smaller than the width of the bottom opening of the stacking port; when the blocking piece on one side abuts against the discharge port, the blocking piece on the top abuts against the bottom wall of the stacking port, and at this time, the discharge port, the blocking piece abutting against the discharge port and the blocking piece abutting against the stacking port jointly close the bottom of the stacking port; during operation, the rotating shaft rotates in the clockwise direction; the material at the bottom of the blocking plate slides out of the discharge port; after the rotating shaft rotates ninety degrees, the blocking piece on the top rotates to a horizontal position and abuts against the discharge port.

[0009] Furthermore, the transport assembly includes a connecting seat, a transmission shaft, a pulley, and a transmission belt; the connecting seat is fixedly connected to the top of one end of the support frame located in the body, a transport cavity is opened at the top of the support frame, the transmission shaft is correspondingly arranged at both ends of the transport cavity, the transmission shaft is rotatably installed on the front and rear walls of the support frame, the pulleys are fixedly connected to the outside of the transmission shaft, the transmission belt is wound between the pulleys on both sides, the top of the transmission belt is flush with the top of the support frame, and a protective plate is symmetrically arranged on the top of the support frame corresponding to the transmission belt.

[0010] Furthermore, the synchronization component includes a synchronization cavity, an extension block, an elastic key, a central axis, a transmission gear, a synchronization gear and a synchronization shaft; the synchronization cavity is opened in the connecting seat, the extension block is arranged inside the synchronization cavity corresponding to the blocking piece, the extension block is slidably arranged on the side wall of the synchronization cavity through a limiting unit, the elastic key is arranged at the bottom of the extension block, the elastic key keeps the extension block extending out of the connecting seat, the ends of the blocking piece and the extension block are both arranged as hemispherical ends, and the extension block is movably engaged with the blocking piece; a rack is arranged on the side of the extension block away from the limiting unit, the rack driving is connected to the transmission gear, the transmission gear is fixedly installed on the outside of the central axis, the end of the transmission gear away from the extension block is meshed with the synchronization gear, the synchronization gear is fixedly sleeved on the outside of the synchronization shaft, and both ends of the synchronization gear are connected to the paving component.

[0011] Furthermore, the limit unit includes a limit groove and a limit key; the side wall of the connecting seat is provided with the limit groove, the limit key is slidably arranged inside the limit groove, and the limit key is fixedly connected to the protruding block; in a natural state, the protruding block extends out from the top of the connecting seat, and when the blocking piece rotates to abut against the protruding block, the protruding block drives the transmission gear and the synchronous gear to rotate by sliding, and the synchronous gear drives the flattening assembly to slide; after the blocking piece is disengaged from the protruding block, the protruding block is reset under the action of the elastic key, and the flattening assembly is reset under the action of the synchronous gear.

[0012] Furthermore, the leveling assembly includes a limit key, a sliding groove, a spring, a fixed rope and a push plate; the limit key is installed on the top of the connecting seat corresponding to the two ends, and the sliding groove is opened on the side where the limit keys at both ends are close to each other, and the push plate is slidably connected with the limit keys at both ends through the sliding groove, and the spring is arranged in the sliding groove, and the spring keeps the push plate away from the connecting seat, and the fixed rope is wound around both ends of the synchronous gear, and the output end of the fixed rope passes through the connecting seat and is connected to the push plate through the sliding groove; in a natural state, the springs at both ends drive the push plate away from the connecting seat; when the synchronous gear rotates, it drives the fixed ropes at both ends to tighten, and the push plate overcomes the elastic force of the spring and approaches the connecting seat; the sliding direction of the bottom of the push plate is opposite to the material transportation direction, so as to realize uniform leveling of the material.

[0013] Furthermore, the driving assembly includes a driving shaft, a driving gear, an incomplete gear, a motor and a driven wheel; the motor is installed on the inner wall of the body, the output end of the driving shaft is fixedly connected to the driving shaft, the end of the driving shaft away from the motor is fixedly sleeved with the driving gear, the driving gear is connected to the driven wheel through gear meshing, the driven wheel is fixedly sleeved on the outside of the connecting seat, and the motor drives the connecting seat to rotate through the driving shaft, thereby driving the transmission belt to slide at a uniform speed.

[0014] Furthermore, the incomplete gear is sleeved on the middle part of the driving shaft, the incomplete gear is set as a quarter gear, the incomplete gear is connected to the rotating gear through gear meshing, the rotating gear is sleeved on the outside of the rotating shaft, and the motor drives the rotating gear to rotate through the driving shaft, thereby realizing intermittent rotation of the rotating shaft by ninety degrees.

[0015] A material laying method for an X-ray sorting machine comprises the following steps:

[0016] S1. The motor drives the connecting seat to rotate one circle through the driving shaft, thereby driving the transmission belt to slide at a constant speed; at the same time, the motor drives the rotating gear to rotate through the incomplete gear, thereby driving the rotating shaft to intermittently rotate ninety degrees.

[0017] S2, the materials between the bottom of the baffle plate, the discharge port, the blocking sheet abutting against the discharge port, and the blocking sheet abutting against the stacking port slide to the top of the transmission belt due to the rotation of the rotating shaft;

[0018] S3, when the blocking piece abutting against the discharge port rotates to abut against the extending block, the extending block drives the transmission gear and the synchronous gear to rotate by sliding, and the synchronous gear drives the fixed ropes at both ends to tighten when rotating, and the sliding direction of the bottom of the pushing plate is opposite to the material transportation direction, so as to realize uniform pushing and leveling of the material;

[0019] S4. Repeat the above S1-S3 operations to achieve quantitative output and leveling of the stacked materials.

[0020] The beneficial effects of the present invention are:

[0021] 1. The present invention adopts a combined structure of a discharge port, a semicircular shell, a rotating shaft, a blocking sheet, and a blocking plate, so that when the blocking sheet on one side abuts against the discharge port, the blocking sheet on the top abuts against the bottom wall of the stacking port, and at this time, the discharge port, the blocking sheet abutting against the discharge port, and the blocking sheet abutting against the stacking port jointly seal the bottom of the stacking port; during operation, the rotating shaft rotates in the clockwise direction; the material at the bottom of the blocking plate slides out of the discharge port, thereby realizing quantitative output of the stacked material inside the discharge port;

[0022] 2. The present invention sets up a linkage structure of a quantitative component and a synchronous component, so that when the synchronous gear rotates, the fixed ropes at both ends are tightened, and the pushing plate overcomes the elastic force of the spring and approaches the connecting seat; the sliding direction of the bottom of the pushing plate is opposite to the material transportation direction, so that the material is evenly pushed and leveled; so that the device can achieve quantitative pushing of materials and evenly leveling of the pushed materials at the same time, further achieving uniform material laying.

[0023] 3. The present invention realizes that the motor drives the connecting seat to rotate one circle through the driving shaft, thereby driving the transmission belt to slide at a uniform speed; at the same time, the rotating gear is driven to rotate through the incomplete gear, thereby realizing intermittent rotation of the rotating shaft by ninety degrees; while the transport component outputs at a uniform speed, the quantitative component intermittently outputs stacked materials without manual operation; automatic quantitative output and reciprocating paving of materials are realized, and the device has high automation, strong linkage, and good paving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a main structural schematic diagram of the present invention;

[0025] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0026] Figure 3 It is a schematic cross-sectional view of the quantitative component of the present invention during the rotation process;

[0027] Figure 4 It is a schematic diagram of the transmission structure of the driving component and the quantitative component of the present invention;

[0028] Figure 5 It is a schematic diagram of the transmission structure of the driving assembly and the transport assembly of the present invention;

[0029] Figure 6 The present invention Figure 2 The enlarged structural diagram at A in the middle;

[0030] Figure 7 is a schematic structural diagram of a drive assembly of the present invention;

[0031] Figure 8 It is a schematic diagram of the cross-sectional structure between the support frame and the connecting seat of the present invention.

[0032] Description of reference numerals in the figures:

[0033] 11. Machine body; 12. Stacking port; 13. Support frame; 14. Protective plate; 21. Discharge port; 22. Semicircular shell; 23. Rotating shaft; 24. Blocking plate; 25. Blocking plate; 26. Rotating gear; 31. Connecting seat; 32. Transmission shaft; 33. Pulley; 34. Transmission belt; 51. Driving shaft; 52. Active gear; 53. Incomplete gear; 54. Motor; 55. Driven wheel; 61. Synchronous chamber; 62. Extending block; 63. Elastic key; 64. Middle shaft; 65. Transmission gear; 66. Synchronous gear; 67. Synchronous shaft; 68. Limiting groove; 69. Limiting key; 71. Sliding frame; 72. Sliding groove; 73. Spring; 74. Fixing rope; 75. Push plate. DETAILED DESCRIPTION

[0034] Embodiment 1:

[0035] Please refer to 1-8;

[0036] A material spreading device for an X-ray sorting machine comprises a machine body 11, and also comprises a stacking port 12, a support frame 13, a quantitative component, a transport component, a synchronization component and a paving component; the stacking port 12 is installed on the top of the machine body 11, the bottom of the stacking port 12 extends into the interior of the machine body 11 and is provided with a quantitative component, the support frame 13 is provided on one side of the machine body 11, one end of the support frame 13 extends into the interior of the machine body 11 and is provided with the transport component corresponding to the quantitative component; the quantitative component is used to quantitatively output the stacked materials in the stacking port 12 to the top of the transport component, and the quantitative component drives the paving component to slide back and forth through the synchronization component to process the materials on the transport component.

[0037] As a further solution of this embodiment, the quantitative component includes a discharge port 21, a semicircular shell 22, a rotating shaft 23, a blocking piece 24, and a blocking plate 25; the discharge port 21 is fixedly connected to the bottom of the stacking port 12, and the discharge port 21 is set as a U-shaped discharge port. The semicircular shell 22 is fixedly connected to the opening of the discharge port 21, and the rotating shaft 23 is rotatably installed between the front and rear walls of the discharge port 21. The blocking pieces 24 are distributed in a circular array on the outside of the rotating shaft 23 with the rotating shaft 23 as the center. Four blocking pieces 24 are provided, and one end of the blocking piece 24 away from the rotating shaft 23 is rotatably adapted to the semicircular shell 22; the blocking plate 25 is also installed on the side wall of the stacking port 12 away from the rotating shaft 23, and the horizontal length of the blocking plate 25 is less than the width of the bottom opening of the stacking port 12;

[0038] In this embodiment, when the blocking piece 24 on one side abuts against the discharge port 21, the blocking piece 24 on the top abuts against the bottom wall of the stacking port 12. At this time, the discharge port 21, the blocking piece 24 abutting against the discharge port 21, and the blocking piece 24 abutting against the stacking port 12 jointly close the bottom of the stacking port 12; during operation, the rotating shaft 23 rotates clockwise; the material at the bottom of the baffle plate 25 slides out of the discharge port 21; after the rotating shaft 23 rotates ninety degrees, the blocking piece 24 on the top rotates to a horizontal position and abuts against the discharge port 21.

[0039] As a further solution of this embodiment, the transport assembly includes a connecting seat 31, a transmission shaft 32, a pulley 33, and a transmission belt 34; the connecting seat 31 is fixedly connected to the top of one end of the support frame 13 located in the body 11, a transport cavity is opened at the top of the support frame 13, and the transmission shaft 32 is correspondingly arranged at both ends of the transport cavity. The transmission shaft 32 is rotatably installed on the front and rear walls of the support frame 13, and the pulleys 33 are fixedly connected to the outside of the transmission shaft 32. The transmission belt 34 is wound around the pulleys 33 on both sides, and the top of the transmission belt 34 is flush with the top of the support frame 13. A protective plate 14 is symmetrically arranged at the top of the support frame 13 corresponding to the transmission belt 34.

[0040] Embodiment 2:

[0041] In the first embodiment, there is a lack of structural design for the synchronization component and the paving component.

[0042] The synchronization assembly includes a synchronization cavity 61, a protruding block 62, an elastic key 63, a middle shaft 64, a transmission gear 65, a synchronization gear 66 and a synchronization shaft 67; the connection seat 31 is provided with the synchronization cavity 61, the inside of the synchronization cavity 61 is provided with the protruding block 62 corresponding to the blocking piece 24, the protruding block 62 is slidably arranged on the side wall of the synchronization cavity 61 through a limiting unit, the bottom of the protruding block 62 is provided with the elastic key 63, the elastic key 63 keeps the protruding block 62 protruding from the connection seat 31, the blocking piece 24 4 and the ends of the extending block 62 are both set as hemispherical ends, and the extending block 62 is movably engaged with the blocking piece 24; a rack is set on the side of the extending block 62 away from the limiting unit, and the rack is drivingly connected to the transmission gear 65, and the transmission gear 65 is fixedly installed on the outside of the central axis 64, and one end of the transmission gear 65 away from the extending block 62 is meshed with the synchronous gear 66, and the synchronous gear 66 is fixedly sleeved on the outside of the synchronous shaft 67, and both ends of the synchronous gear 66 are connected to the paving assembly.

[0043] As a further solution of this embodiment, the limiting unit includes a limiting groove 68 and a limiting key 69; the side wall of the connecting seat 31 is provided with the limiting groove 68, the limiting key 69 is slidably arranged inside the limiting groove 68, and the limiting key 69 is fixedly connected to the extending block 62; in a natural state, the extending block 62 extends out of the top of the connecting seat 31, and when the blocking piece 24 rotates to abut against the extending block 62, the extending block 62 drives the transmission gear 65 and the synchronous gear 66 to rotate by sliding, and the synchronous gear 66 drives the paving assembly to slide;

[0044] In this embodiment, after the blocking piece 24 is disengaged from the protruding block 62 , the protruding block 62 is reset under the action of the elastic key 63 , and the paving assembly is reset under the action of the synchronous gear 66 .

[0045] As a further solution of this embodiment, the paving assembly includes a limit key 71, a sliding groove 72, a spring 73, a fixing rope 74 and a push plate 75; the limit key 71 is installed on the top of the connecting seat 31 corresponding to the two ends of 35, and the sliding groove 72 is opened on the side where the limit keys 71 at both ends are close to each other, and the push plate 75 is slidably connected with the limit keys 71 at both ends through the sliding groove 72, and the spring 73 is arranged in the sliding groove 72, and the spring 73 keeps the push plate 75 away from the connecting seat 31, and the fixing rope 74 is wound around both ends of the synchronous gear 66, and the output end of the fixing rope 74 passes through the connecting seat 31 and is connected to the push plate 75 through the sliding groove 72;

[0046] In this embodiment, in a natural state, the springs 73 at both ends drive the pushing plate 75 away from the connecting seat 31; when the synchronous gear 66 rotates, it drives the fixing ropes 74 at both ends to tighten, and the pushing plate 75 overcomes the elastic force of the spring 73 and approaches the connecting seat 31; the sliding direction of the bottom of the pushing plate 75 is opposite to the material transportation direction, so as to achieve uniform pushing of the material.

[0047] Embodiment 3,

[0048] In the first and second embodiments, there is a lack of structural configuration of the driving assembly, therefore, we further provide the third embodiment.

[0049] The driving assembly includes a driving shaft 51, a driving gear 52, an incomplete gear 53, a motor 54 and a driven wheel 55; the motor 54 is installed on the inner wall of the body 11, the output end of the driving shaft 51 is fixedly connected to the driving shaft 51, the end of the driving shaft 51 away from the motor 54 is fixedly sleeved with the driving gear 52, the driving gear 52 is connected to the driven wheel 55 through gear meshing, and the driven wheel 55 is fixedly sleeved on the outer side of the connecting seat 31, and the motor 54 drives the connecting seat 31 to rotate through the driving shaft 51, thereby driving the transmission belt 34 to slide at a uniform speed.

[0050] As a further solution of this embodiment, the incomplete gear 53 is sleeved on the middle part of the driving shaft 51, and the incomplete gear 53 is set as a quarter gear. The incomplete gear 53 is connected to the rotating gear 26 through gear meshing. The rotating gear 26 is sleeved on the outside of the rotating shaft 23. The motor 54 drives the rotating gear 26 to rotate through the driving shaft 51, thereby realizing the intermittent rotation of the rotating shaft 23 by ninety degrees.

[0051] Embodiment 4

[0052] A material laying method for an X-ray sorting machine comprises the following steps:

[0053] S1. The motor 54 drives the connecting seat 31 to rotate one circle through the driving shaft 51, thereby driving the transmission belt 34 to slide at a constant speed; at the same time, the rotating gear 26 is driven to rotate through the incomplete gear 53, thereby driving the rotating shaft 23 to intermittently rotate ninety degrees.

[0054] S2, the materials between the bottom of the blocking plate 25, the discharge port 21, the blocking sheet 24 abutting against the discharge port 21, and the blocking sheet 24 abutting against the stacking port 12 slide to the top of the transmission belt 34 due to the rotation of the rotating shaft 23;

[0055] S3, when the blocking piece 24 abutting against the discharge port 21 rotates to abut against the extending block 62, the extending block 62 drives the transmission gear 65 and the synchronous gear 66 to rotate by sliding, and the synchronous gear 66 drives the fixing ropes 74 at both ends to tighten when rotating, and the sliding direction of the bottom of the pushing plate 75 is opposite to the material transportation direction, so as to realize uniform pushing and leveling of the material;

[0056] S4. Repeat the above S1-S3 operations to achieve quantitative output and leveling of the stacked materials.

Claims

1. An X-ray sorting machine material laying device, comprising a machine body, characterized in that: It also includes a stacking port, a support frame, a quantitative component, a transportation component, a synchronization component and a leveling component; the stacking port is installed on the top of the body, the bottom of the stacking port extends into the body and is provided with a quantitative component, the support frame is provided on one side of the body, one end of the support frame extends into the body and the transportation component is provided corresponding to the quantitative component; the quantitative component is used to quantitatively output the stacked materials in the stacking port to the top of the transportation component, and the quantitative component drives the leveling component to slide back and forth through the synchronization component to process the materials on the transportation component.

2. The material spreading device of an X-ray sorting machine according to claim 1, characterized in that: The quantitative component includes a discharge port, a semicircular shell, a rotating shaft, a blocking sheet, and a blocking plate; The discharge port is fixedly connected to the bottom of the stacking port, and the discharge port is set as a U-shaped discharge port. The semicircular shell is fixedly connected to the opening of the discharge port. The rotating shaft is rotatably installed between the front and rear walls of the discharge port. The blocking sheets are distributed in a circular array on the outside of the rotating shaft with the rotating shaft as the center. Four blocking sheets are provided, and one end of the blocking sheet away from the rotating shaft is rotatably adapted to the semicircular shell; the blocking plate is also installed on the side wall of the stacking port away from the rotating shaft, and the horizontal length of the blocking plate is less than the width of the bottom opening of the stacking port; When the blocking piece on one side abuts against the discharge port, the blocking piece on the top abuts against the bottom wall of the stacking port, and at this time, the discharge port, the blocking piece abutting against the discharge port, and the blocking piece abutting against the stacking port jointly seal the bottom of the stacking port; during operation, the rotating shaft rotates in the clockwise direction; the material at the bottom of the blocking plate slides out of the discharge port; After the rotating shaft rotates 90 degrees, the blocking sheet at the top rotates to a horizontal position to abut against the discharge port.

3. The material spreading device of an X-ray sorting machine according to claim 2, characterized in that: The transport assembly includes a connecting seat, a transmission shaft, a pulley, and a transmission belt; The top of one end of the support frame located within the body is fixedly connected to the connecting seat, a transport cavity is opened on the top of the support frame, the transmission shaft is correspondingly arranged at both ends of the transport cavity, the transmission shaft is rotatably installed on the front and rear walls of the support frame, the outer sides of the transmission shaft are fixedly connected to the pulleys, the transmission belt is wound between the pulleys on both sides, the top of the transmission belt is flush with the top of the support frame, and a protective plate is symmetrically arranged on the top of the support frame corresponding to the transmission belt.

4. The material spreading device of an X-ray sorting machine according to claim 3, characterized in that: The synchronization assembly includes a synchronization cavity, a protruding block, an elastic key, a middle shaft, a transmission gear, a synchronization gear and a synchronization shaft; The connecting seat is provided with the synchronous cavity, and the extending block is arranged inside the synchronous cavity corresponding to the blocking piece. The extending block is slidably arranged on the side wall of the synchronous cavity through a limiting unit. The elastic key is arranged at the bottom of the extending block, and the elastic key keeps the extending block extending out of the connecting seat. The ends of the blocking piece and the extending block are both arranged as hemispherical ends, and the extending block is movably engaged with the blocking piece. A rack is arranged on the side of the extending block away from the limiting unit, and the rack driving is connected to the transmission gear, and the transmission gear is fixedly installed on the outside of the central shaft, and the gear meshing connection of the end of the transmission gear away from the extending block is connected to the synchronous gear, and the synchronous gear is fixedly sleeved on the outside of the synchronous shaft, and the two ends of the synchronous gear are connected to the paving assembly.

5. The material spreading device of an X-ray sorting machine according to claim 4, characterized in that: The limiting unit includes a limiting groove and a limiting key; The side wall of the connecting seat is provided with the limiting groove, the limiting key is slidably arranged inside the limiting groove, and the limiting key is fixedly connected to the extending block; in a natural state, the extending block extends out of the top of the connecting seat, and when the blocking piece rotates to abut against the extending block, the extending block drives the transmission gear and the synchronous gear to rotate by sliding, and the synchronous gear drives the paving assembly to slide; After the blocking piece is disengaged from the protruding block, the protruding block is reset under the action of the elastic key, and the paving assembly is reset under the action of the synchronous gear.

6. The material spreading device of an X-ray sorting machine according to claim 4, characterized in that: The paving assembly includes a limit key, a sliding groove, a spring, a fixing rope and a pushing plate; The limit keys are installed at the top of the connecting seat corresponding to the two ends, and the sliding groove is opened on the side where the limit keys at the two ends are close to each other. The push plate is slidably connected with the limit keys at the two ends through the sliding groove. The spring is arranged in the sliding groove, and the spring keeps the push plate away from the connecting seat. The fixing rope is wound around both ends of the synchronous gear, and the output end of the fixing rope passes through the connecting seat and is connected to the push plate through the sliding groove; In a natural state, the springs at both ends drive the pushing plate away from the connecting seat; when the synchronous gear rotates, it drives the fixed ropes at both ends to tighten, and the pushing plate overcomes the elastic force of the springs and approaches the connecting seat; the sliding direction of the bottom of the pushing plate is opposite to the material transportation direction, so as to achieve uniform pushing of the material.

7. The material spreading device of an X-ray sorting machine according to claim 6, characterized in that: The driving assembly includes a driving shaft, a driving gear, an incomplete gear, a motor and a driven wheel; The motor is installed on the inner wall of the machine body, the output end of the driving shaft is fixedly connected to the driving shaft, the end of the driving shaft away from the motor is fixedly sleeved with the driving gear, the driving gear is connected to the driven wheel through gear meshing, the driven wheel is fixedly sleeved on the outer side of the connecting seat, the motor drives the connecting seat to rotate through the driving shaft, and then drives the transmission belt to slide at a uniform speed.

8. The material spreading device of an X-ray sorting machine according to claim 7, characterized in that: The incomplete gear is sleeved on the middle part of the driving shaft, and the incomplete gear is set as a quarter gear. The incomplete gear is connected to the rotating gear through gear meshing. The rotating gear is sleeved on the outside of the rotating shaft. The motor drives the rotating gear to rotate through the driving shaft, thereby realizing intermittent rotation of the rotating shaft by ninety degrees.

9. An X-ray sorting machine material laying method applicable to any one of claims 5 to 8, characterized in that: The following steps are involved: S1. The motor drives the connecting seat to rotate one circle through the driving shaft, thereby driving the transmission belt to slide at a constant speed; at the same time, the motor drives the rotating gear to rotate through the incomplete gear, thereby driving the rotating shaft to intermittently rotate ninety degrees. S2, the materials between the bottom of the baffle plate, the discharge port, the blocking sheet abutting against the discharge port, and the blocking sheet abutting against the stacking port slide to the top of the transmission belt due to the rotation of the rotating shaft; S3, when the blocking piece abutting against the discharge port rotates to abut against the extending block, the extending block drives the transmission gear and the synchronous gear to rotate by sliding, and the synchronous gear drives the fixed ropes at both ends to tighten when rotating, and the sliding direction of the bottom of the pushing plate is opposite to the material transportation direction, so as to realize uniform pushing and leveling of the material; S4. Repeat the above S1-S3 operations to achieve quantitative output and leveling of the stacked materials.

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