Dynamic checkweigher with multiple stage reject sorting function

Abstract

The application discloses a dynamic check weight scale with a multi-stage rejection sorting function and relates to the technical field of dynamic check weight scales.The dynamic check weight scale with the multi-stage rejection sorting function comprises a machine body, a rejection device fixedly installed at the right side of the machine body, a discharge conveying belt fixedly installed at the right side of the rejection device, a conveying belt fixedly connected to the left side of the machine body, an inclined plate conveying belt arranged at the left side of the conveying belt, a half tooth fixedly connected to the bottom of the inclined plate conveying belt, a bottom frame rotatably connected to the inner wall of the half tooth, a support frame fixedly connected to the top of the bottom frame, a gear cover fixedly connected to the surface of the bottom frame, and a small support fixedly installed on the surface of the bottom frame.The first goods are automatically lifted to push out the support when entering, the subsequent goods are blocked, the inclined plate conveying belt is reset when the goods leave, and the support falls down.

Description

Technical Field

[0001] This invention belongs to the field of dynamic checkweighers, specifically relating to dynamic checkweighers with multi-level rejection and sorting functions. Background Technology

[0002] Dynamic checkweighers are widely used in production lines for online weighing and sorting of products. Their weighing accuracy is significantly affected by factors such as the material's entry state, posture, and surface cleanliness.

[0003] During the transportation of goods, multiple goods may be squeezed onto the conveyor belt of the checkweigher at the same time, causing multiple goods to pass through the checkweighing area at the same time, resulting in inaccurate weighing or even failure to weigh, which seriously affects the efficiency and accuracy of checkweighing. Summary of the Invention

[0004] Therefore, it is necessary to provide a dynamic checkweigher with multi-level rejection and sorting functions to address the shortcomings of existing technologies and solve the dynamic checkweighing problem.

[0005] To solve the above problems, this application adopts the following technical solution: One objective of this application is to provide a dynamic checkweigher with multi-stage rejection and sorting functions, comprising: a body, a rejection device fixedly installed on the right side of the body, a discharge conveyor belt fixedly installed on the right side of the rejection device, a conveyor belt fixedly connected to the left side of the body, an inclined conveyor belt arranged on the left side of the conveyor belt, a half-tooth fixedly connected to the bottom of the inclined conveyor belt, a base frame rotatably connected to the inner wall of the half-tooth, a support frame fixedly connected to the top of the base frame, a gear cover fixedly connected to the surface of the base frame, a small bracket fixedly installed on the surface of the base frame, a cylinder rotatably connected to the surface of the small bracket, a first gear rotatably connected to the circumference of the cylinder, the first gear meshing with the half-tooth, a second gear rotatably connected to the circumference of the cylinder, a vertical rack slidingly penetrating the inner wall of the gear cover, the vertical rack meshing with the second gear, an outward pusher fixedly connected to the top of the vertical rack, and rollers rotatably connected to the inner wall of the inclined conveyor belt.

[0006] In some embodiments, a lower pressure plate is slidably connected to the inner wall of the pusher bracket, a hydraulic rod is fixedly connected inside the pusher bracket, a lower pressure plate is fixedly connected to one end of the top of the hydraulic rod, a push plate bracket is fixedly connected to the other end of the hydraulic rod, and a push plate is rotatably connected to the bottom of the inner wall of the push plate bracket.

[0007] In some embodiments, a spring is provided on the inner wall of the push plate bracket and the surface of the push plate, which allows the push plate to be pushed out under pressure. A vertical rack hole is provided at the bottom of the gear cover to ensure the range of motion of its vertical rack.

[0008] In some embodiments, a right bracket is fixedly connected to the back of the conveyor belt, and a left bracket is fixedly installed on the front of the conveyor belt. One end of a long shaft is rotatably connected to the surface of the right bracket, and the other end of the long shaft is rotatably connected to the surface of the left bracket. A gear frame is fixedly connected to the left side of the right bracket. An upper push plate is rotatably connected to the inner wall of the gear frame. A No. 5 gear is rotatably connected to the inner wall of the gear frame. A No. 3 gear is rotatably connected to the inner wall of the gear frame. A No. 4 gear is fixedly installed on the surface of the No. 3 gear. A belt is rotatably connected to the surface of the No. 4 gear. The No. 4 gear meshes with the belt. The upper push plate meshes with the No. 5 gear. The No. 5 gear meshes with the No. 3 gear. The belt is sleeved on the circumferential surface of the long shaft. A right-hand threaded section is provided on the circumferential surface of the long shaft away from the output end. A left clamping plate is sleeved on the right-hand threaded section of the long shaft. A right-hand threaded section is provided on the inner wall of the left clamping plate. A left-hand threaded section is provided on the circumferential surface of the long shaft at the output end. A right clamping plate is sleeved on the left-hand threaded section of the long shaft. A left-hand threaded section is provided on the inner wall of the right clamping plate.

[0009] In some embodiments, a spring plate is slidably mounted on the front of the right clamping plate, a clamping plate bracket is fixedly mounted on the back of the right clamping plate, a rocker arm is rotatably mounted on the inner wall of the clamping plate bracket, a spiral bracket is fixedly mounted on the top of the clamping plate bracket, a spiral rod is rotatably mounted on the inner wall of the spiral bracket, a threaded section is provided on the circumferential surface of the spiral rod, a triangular plate is sleeved on the threaded section of the spiral rod, and an internal threaded section is provided on the inner wall of the triangular plate.

[0010] In some embodiments, a second spring is provided on the back of the spring plate and the front of the right clamping plate, the two ends of the rocker are respectively located on the movement trajectory of the spring plate and the screw rod, and a third spring is provided on the surface of the screw rod and the surface of the clamping plate bracket.

[0011] In some embodiments, a forked wheel is fixedly mounted on the front of the long shaft, a slanted block groove is formed on the circumferential surface of the forked wheel, a slanted block is slidably connected to the inner wall of the slanted block groove, an air tube support is fixedly mounted on the top of the left support, an air tube is fixedly mounted on the top of the air tube support, a press-type air valve is provided on the surface of the air tube, and a slanted protrusion slides through the inner wall of the air tube support.

[0012] In some embodiments, a wire is fixedly installed at the bottom of the tracheal support, a No. 4 spring is provided at the bottom of the inclined block groove and the bottom of the inclined block, and the inclined protrusion is on the movement trajectory of the inclined block.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention first involves the tilting of the inclined conveyor belt, followed by a mechanism of half-tooth, gear, and vertical rack to automatically raise and lower the pusher bracket. When the first item enters, the pusher bracket is automatically raised to block subsequent items. After the item leaves, the inclined conveyor belt resets, and the pusher bracket lowers to allow the next item to enter. This effectively prevents multiple items from entering simultaneously and affecting weighing accuracy. When items are pressed against the pusher bracket, the pressure of the lower plate drives the hydraulic rod to raise the pusher bracket and push out the pusher plate. The pusher plate pops out and pushes the upper items back to the feeding direction. Furthermore, the rising of the pusher bracket can push away excess items, further improving the certainty of single-item entry.

[0014] This invention allows for the rotation of a long shaft via a gear transmission mechanism driven by an upper push plate when goods enter the conveyor belt vertically or at an angle. The long shaft has a bidirectional threaded section that drives the left and right clamping plates to simultaneously move towards or separate from the center. During clamping, tilted goods can be directly straightened, ensuring they enter the weighing area in the correct posture. If goods enter horizontally, the rotation of a triangular plate caused by the compression of a spring plate changes the horizontal orientation of the goods. When clamping is obstructed, the horizontally tilted goods are automatically pushed to an angle, and then the clamping plates straighten them, ensuring they remain vertical and correct before proceeding to the next step.

[0015] This invention utilizes a long shaft drive to rotate the forked wheel during the cargo clamping process. This causes the inclined blocks on the forked wheel to push the inclined protrusions to squeeze the press-type air valve, intermittently triggering air blowing. This can remove dust and debris from the cargo surface, improving weighing accuracy. Furthermore, the wires installed on the air pipe support can discharge static electricity from the cargo, reducing the adhesion of dust and debris. This allows the air pipe to better blow away dust and debris, further ensuring weighing accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the machine body in one embodiment of the present invention; Figure 2 This is a schematic cross-sectional view of the gear cover in one embodiment of the present invention; Figure 3 This is a schematic diagram of the position structure of the vertical rack in one embodiment of the present invention; Figure 4 This is a schematic cross-sectional view of the push-out bracket in one embodiment of the present invention; Figure 5 This is a schematic diagram of the push plate bracket in one embodiment of the present invention; Figure 6 This is a schematic cross-sectional view of the gear carrier in one embodiment of the present invention; Figure 7 This is a schematic diagram of the belt's position structure in one embodiment of the present invention; Figure 8 This is a schematic diagram of the conveyor belt structure in one embodiment of the present invention; Figure 9 This is a schematic cross-sectional view of the spring plate in one embodiment of the present invention; Figure 10 This is a schematic diagram of the position structure of the rocker in one embodiment of the present invention; Figure 11 This is a schematic diagram of the position structure of the forked wheel in one embodiment of the present invention; Figure 12 This is a schematic diagram of the position and structure of the conductor in one embodiment of the present invention.

[0017] Explanation of key figure labels: 1. Machine body; 2. Base frame; 201. Gear cover; 202. Half gear; 203. Small support; 204. Cylindrical column; 205. Vertical rack; 206. Gear No. 1; 207. Gear No. 2; 208. Support frame; 3. Inclined conveyor belt; 301. Outward push support; 302. Lower pressure plate; 303. Hydraulic rod; 304. Push plate; 305. Push plate support; 4. Conveyor belt; 401. Triangular plate; 402. Gear frame; 403. Upper push plate; 404. Right support; 405. Long shaft; 406. Belt; 407, Gear No. 3; 408, Gear No. 4; 409, Roller; 410, Gear No. 5; 411, Right clamping plate; 412, Left clamping plate; 413, Spring plate; 414, Clamping plate bracket; 415, Rocker; 416, Spiral rod; 417, Spiral bracket; 5, Left bracket; 501, Fork wheel; 502, Inclined block; 503, Inclined protrusion; 504, Press-type air valve; 505, Air pipe bracket; 506, Air pipe; 507, Wire; 6, Removal device; 601, Discharge conveyor belt. Detailed Implementation

[0018] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0019] like Figure 1 - Figure 12As shown, the dynamic checkweigher with multi-stage rejection and sorting function of the present invention includes: a body 1, a rejection device 6 fixedly installed on the right side of the body 1, a discharge conveyor belt 601 fixedly installed on the right side of the rejection device 6, a conveyor belt 4 fixedly connected to the left side of the body 1, an inclined conveyor belt 3 arranged on the left side of the conveyor belt 4, a half tooth 202 fixedly connected to the bottom of the inclined conveyor belt 3, a base frame 2 rotatably connected to the inner wall of the half tooth 202, a support frame 208 fixedly connected to the top of the base frame 2, a gear cover 201 fixedly connected to the surface of the base frame 2, a small bracket 203 fixedly installed on the surface of the base frame 2, and a cylinder rotatably connected to the surface of the small bracket 203. 204. A first gear 206 is rotatably connected to the circumference of the cylinder 204. The first gear 206 meshes with the half gear 202. A second gear 207 is rotatably connected to the circumference of the cylinder 204. A vertical rack 205 slides through the inner wall of the gear cover 201. The vertical rack 205 meshes with the second gear 207. An external push bracket 301 is fixedly connected to the top of the vertical rack 205. A roller 409 is rotatably connected to the inner wall of the inclined conveyor belt 3. When the first item enters, the external push bracket 301 is automatically raised to block subsequent items. When the item leaves, the inclined conveyor belt 3 resets, and the external push bracket 301 falls to allow the next item to enter.

[0020] The inner wall of the pusher bracket 301 is slidably connected to a lower pressure plate 302. A hydraulic rod 303 is fixedly connected inside the pusher bracket 301. One end of the top of the hydraulic rod 303 is fixedly connected to the lower pressure plate 302, and the other end of the hydraulic rod 303 is fixedly connected to a push plate bracket 305. A push plate 304 is rotatably connected to the bottom of the inner wall of the push plate bracket 305. When goods are pressed on the pusher bracket 301, the lower pressure plate 302 presses down, driving the hydraulic rod 303 to lift the push plate bracket 305 and push out the push plate 304. The push plate 304 pops out and pushes the upper goods back to the feeding direction.

[0021] A spring is provided on the inner wall of the push plate bracket 305 and the surface of the push plate 304, which allows the push plate 304 to be pushed out under pressure. A vertical rack hole is provided at the bottom of the gear cover 201 to ensure the range of motion of its vertical rack 205.

[0022] A right support 404 is fixedly connected to the back of the conveyor belt 4, and a left support 5 is fixedly installed on the front of the conveyor belt 4. One end of a long shaft 405 is rotatably connected to the surface of the right support 404, and the other end of the long shaft 405 is rotatably connected to the surface of the left support 5. A gear frame 402 is fixedly connected to the left side of the right support 404. An upper push plate 403 is rotatably connected to the inner wall of the gear frame 402. A fifth gear 410 is rotatably connected to the inner wall of the gear frame 402, and a third gear 407 is rotatably connected to the inner wall of the gear frame 402. A fourth gear 408 is fixedly installed on the surface of the third gear 407, and a belt 406 is rotatably connected to the surface of the fourth gear 408. The fourth gear 408 meshes with the belt 406. The upper push plate 403 and the fifth gear... 410 meshes with gear 5 410 and gear 3 407. Belt 406 is sleeved on the circumferential surface of long shaft 405. A right-hand threaded section is provided on the circumferential surface of long shaft 405 away from the output end. Left clamping plate 412 is sleeved on the right-hand threaded section of long shaft 405. Right-hand threaded section is provided on the inner wall of left clamping plate 412. Left-hand threaded section is provided on the circumferential surface of long shaft 405 at the output end. Right clamping plate 411 is sleeved on the left-hand threaded section of long shaft 405. Left-hand threaded section is provided on the inner wall of right clamping plate 411. Upward push plate 403 drives long shaft 405 to rotate through the linkage gear transmission mechanism. Long shaft 405 has a bidirectional threaded section, which drives left clamping plate 412 and right clamping plate 411 to move towards or separate from the center synchronously.

[0023] A spring plate 413 is slidably mounted on the front of the right clamping plate 411, and a clamping plate bracket 414 is fixedly mounted on the back of the right clamping plate 411. A rocker arm 415 is rotatably mounted on the inner wall of the clamping plate bracket 414, and a spiral bracket 417 is fixedly mounted on the top of the clamping plate bracket 414. A spiral rod 416 is rotatably mounted on the inner wall of the spiral bracket 417. A threaded section is provided on the circumference of the spiral rod 416, and a triangular plate 401 is sleeved on the threaded section of the spiral rod 416. An internal threaded section is provided on the inner wall of the triangular plate 401. If the goods enter horizontally, the horizontal state of the goods can be changed by the compression of the spring plate 413, which causes the triangular plate 401 to rotate. When the clamping is obstructed, the horizontal goods can be automatically pushed into an oblique position.

[0024] A second spring is provided on the back of the spring plate 413 and the front of the right clamping plate 411. The two ends of the rocker plate 415 are located on the movement trajectory of the spring plate 413 and the screw rod 416, respectively. A third spring is provided on the surface of the screw rod 416 and the surface of the clamping plate bracket 414. When the clamping is obstructed, the horizontal goods can be automatically pushed to an angle, and then the clamping plate will straighten them so that they are still vertical and correct before proceeding to the next step.

[0025] A forked wheel 501 is fixedly mounted on the front of the long shaft 405. A slanted block groove is opened on the circumferential surface of the forked wheel 501. A slanted block 502 is slidably connected to the inner wall of the slanted block groove. An air pipe support 505 is fixedly mounted on the top of the left bracket 5. An air pipe 506 is fixedly mounted on the top of the air pipe support 505. A push-type air valve 504 is provided on the surface of the air pipe 506. A slanted protrusion 503 slides through the inner wall of the air pipe support 505, so that the slanted block 502 on the forked wheel 501 pushes the slanted protrusion 503 to squeeze the push-type air valve 504, triggering air blowing intermittently, which can remove dust and debris from the surface of the goods.

[0026] The bottom of the air tube support 505 is fixedly installed with a wire 507. The bottom of the inclined block groove and the bottom of the inclined block 502 are provided with a No. 4 spring. The inclined protrusion 503 is on the movement trajectory of the inclined block 502. The wire 507 on the air tube support 505 can also discharge static electricity on the goods, reduce the adsorption of dust and debris, and allow the air tube 506 to blow away dust and debris better.

[0027] During operation: When the first item enters the inclined conveyor belt 3, the inclined conveyor belt 3 will tilt to one side due to the weight of the item. The tilted inclined conveyor belt 3 drives the lower half-tooth 202 to rotate clockwise. Through the meshing rotation of the half-tooth 202, it drives the first gear 206 to rotate counterclockwise. The rotation of the first gear 206 drives the cylinder 204 fixed on its surface to rotate together. The rotation of the cylinder 204 drives the second gear 207 fixed on its surface. The counterclockwise rotation of the second gear 207 meshes and drives the vertical rack 205 upward. The upward movement of the vertical rack 205 drives the top-mounted push bracket 3. 01. The lifting of the outward push bracket 301 will block the entry of the second item into the inclined conveyor belt 3, which can prevent multiple items from entering the checkweigher. At the same time, the roller 409 connected to the inclined conveyor belt 3 will rest on the conveyor belt 4. The conveyor belt 4 rotates clockwise, and the roller 409 will rotate counterclockwise through friction. The counterclockwise rotating roller 409 will drive the inclined conveyor belt 3 to rotate clockwise through friction. The rotation of the inclined conveyor belt 3 will bring the first item into the conveyor belt 4. After the first item has completely entered the conveyor belt 4, the inclined conveyor belt 3 loses the gravity of the item. Because the weights on both sides of the inclined conveyor belt 3 are unequal, the heavier side drives the inclined conveyor belt 3 back to level under its own gravity, and at the same time drives the half tooth 202 to rotate counterclockwise. Through the meshing of the half tooth 202 with the first gear 206, the first gear 206 is driven to rotate clockwise, which in turn drives the cylinder 204 and the second gear 207 to rotate clockwise. The second gear 207 drives the vertical rack 205 to move downward, and the vertical rack 205 drives the outward push bracket 301 to fall and reset. After the inclined conveyor belt 3 returns to its horizontal position, it is supported by the support frame 208 to maintain a horizontal state, removing any obstruction to subsequent goods and preparing for the second goods to enter the inclined conveyor belt 3. When goods enter, multiple goods may crowd in. When the first goods enter the inclined conveyor belt 3, if there are goods stacked on the surface of the raised outer pusher bracket 301, the lower pressure plate 302 at the top of the outer pusher bracket 301 will be pressed down by its own weight. Subsequently, the lower pressure plate 302 will press against one end of the hydraulic rod 303, and the other end of the hydraulic rod 303 will lift the pusher bracket 305. The plate bracket 305 will drive the push plate 304 upward. At the same time, as the lower pressure plate 302 moves downward, the limit of the push plate 304 will be released. Then, the lifted push plate 304 will be popped out by the first spring. The popping out of the push plate 304 will push the goods in the feeding direction. Similarly, the upward movement of the push plate bracket 305 will also block the goods from entering the inclined conveyor belt 3. When there are no goods on the lower pressure plate 302, the push plate bracket 305 will descend with gravity. During the descent, it will drive the push plate 304 to retract. The hydraulic rod 303 under the push plate bracket 305 will lift the lower pressure plate 302 to reset.

[0028] When the first item enters the conveyor belt 4 vertically or at an angle, the push plate 403, which rests on the inclined conveyor belt 3, will be leveled by gravity along with the inclined conveyor belt 3. The push plate 403 will rotate counterclockwise. The rotation of the push plate 403 engages the fifth gear 410, which rotates clockwise. The rotation of the fifth gear 410 engages the third gear 407, which rotates counterclockwise. The rotation of the third gear 407 engages the fourth gear 408 on the surface, which rotates counterclockwise. The rotation of 8 drives the surface meshing belt 406 to rotate counterclockwise. The rotation of belt 406 drives the meshing long shaft 405 to rotate counterclockwise. The counterclockwise rotation of long shaft 405, through the left-hand thread section on its surface engaging with the left-hand thread on the inner wall of right clamping plate 411, converts the rotational motion into axial movement, driving right clamping plate 411 to move to the left; at the same time, through the right-hand thread section on its surface engaging with the right-hand thread on the inner wall of left clamping plate 412, it drives left clamping plate 412 to move to the right.The right clamping plate 411 and the left clamping plate 412 move inward simultaneously, clamping the goods during the movement and correcting them from an inclined state to a vertical state. The spring plate 413 is not triggered at the clamping point. This allows the goods to be clamped properly when they move in, facilitating weighing by the subsequent checkweigher. Simultaneously, when the goods enter the conveyor belt 4 laterally, the left clamping plate 412 and the right clamping plate 411 move inward to clamp the goods laterally. After clamping, the spring plate 413 on the surface of the right clamping plate 411 is pressed to the right by the force of the goods. The spring plate 413 presses against the bottom of the rocker arm 415, which uses its central fulcrum as a pivot point. As the shaft rotates, the bottom moves to the right and the top moves to the left, pressing against the right end face of the screw rod 416. The screw rod 416, under pressure, moves to the left. The threaded section on the surface of the screw rod 416 meshes with the internal threaded section on the inner wall of the triangular plate 401. The axial movement of the screw rod 416 is converted into the rotational motion of the triangular plate 401 through threaded transmission, causing the triangular plate 401 to rotate downwards clockwise, pushing aside the horizontal goods and changing their position. Thus, the goods are changed from horizontal to vertical, allowing the right clamping plate 411 and left clamping plate 412 to clamp them normally. The spring plate 413, without being subjected to... Upon compression, the push on the rocker arm 415 is released, and the rocker arm 415 correspondingly releases the push on the screw rod 416. The screw rod 416 is then compressed by the third spring and moves to the right. This rightward movement of the screw rod 416 causes the triangular plate 401 to rotate counterclockwise and return to its original position. At the same time, when the second item enters the inclined conveyor belt 3, the inclined conveyor belt 3 will descend due to gravity. This descent will push the upper push plate 403 upward, causing it to rotate clockwise. The upward-pushing upper push plate 403 will then drive the meshing fifth gear 410 to rotate counterclockwise. Rotation of 410 will cause its meshing gear 407 to rotate clockwise. The rotation of gear 407 will cause the surface-mounted gear 408 to rotate clockwise. The rotation of gear 408 will cause the surface-meshing belt 406 to rotate clockwise. The rotation of belt 406 will cause the long shaft 405 to rotate clockwise. The rotation of long shaft 405 will cause the right clamping plate 411 to move to the right and the left clamping plate 412 to move to the left through the screw drive, releasing the first cargo. In this way, the clamping state of the first cargo is released before the second cargo enters, and the clamping of the second cargo can start again.

[0029] During the clamping of the first item, the long shaft 405 rotates counterclockwise via a transmission, causing the leftmost fork wheel 501 to rotate counterclockwise. The rotation of the fork wheel 501 causes the inclined block 502 on the inner wall to rotate counterclockwise. The right-angled surface of the rotating inclined block 502 pushes the inclined surface of the inclined protrusion 503, causing the inclined protrusion 503 to move upwards. This upward-moving inclined protrusion 503 comes into contact with and presses against the push-type air valve 504. The pressed push-type air valve 504 opens, blowing air onto the surface of the first item and the conveyor belt. This blowing reduces dust and debris, making the checkweigher more accurate. Simultaneously, the wire 507 can contact the item, discharging static electricity from the item to the air pipe support 505. The dust on the goods is more easily blown away by the air from the air pipe 506. Then, when the second goods enter the inclined conveyor belt 3, the long shaft 405 is driven to start rotating clockwise, which drives the fork wheel 501 to rotate clockwise. The inclined surface of the inclined block 502 on the surface of the fork wheel 501 will contact the right angle surface of the inclined protrusion 503. The inclined block 502 will slide towards the inner wall of the fork wheel 501 when it is squeezed. The sliding inclined block 502 will not squeeze the inclined protrusion 503. After rotation, the inclined protrusion 503 moves away and is released from restriction. The inclined block 502 and the fourth spring on the inner wall of the fork wheel 501 will pop the inclined block 502 back to its original position. In this way, the air pipe 506 will stop blowing air after the first goods are clamped, so as not to affect the subsequent movement of the first goods and ensure that the checkweigher can weigh accurately.

[0030] After the first item is weighed by the checkweigher, it moves to the rejection device 6 via the conveyor belt. If the weight of the item is within acceptable limits, the rejection device 6 will not activate, and the item will continue to move along the left side of the discharge conveyor belt 601. This allows qualified items to proceed to the next step via one side of the conveyor belt. If the item does not meet the standards, the rejection device 6 will rotate counterclockwise after the checkweigher detects the problem. The item will then flow to the right side of the discharge conveyor belt 601 via the rejection device 6, and the defective item will flow out from the other side for easier subsequent planning.

[0031] It is understood that the technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The above are merely preferred embodiments of this application, and only specifically describe the technical principles of this application. These descriptions are only for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application, as well as other specific embodiments of this application that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of this application.

Claims

1. A dynamic checkweigher with multi-level rejection and sorting function, characterized in that, include: The machine body (1) has a rejection device (6) fixedly installed on the right side of the machine body (1), a discharge conveyor belt (601) fixedly installed on the right side of the rejection device (6), a conveyor belt (4) fixedly connected to the left side of the machine body (1), an inclined conveyor belt (3) set on the left side of the conveyor belt (4), a half tooth (202) fixedly connected to the bottom of the inclined conveyor belt (3), a base frame (2) rotatably connected to the inner wall of the half tooth (202), a support frame (208) fixedly connected to the top of the base frame (2), a gear cover (201) fixedly connected to the surface of the base frame (2), and a small bracket fixedly installed on the surface of the base frame (2). (203), a cylinder (204) is rotatably connected to the surface of the small support (203), a first gear (206) is rotatably connected to the circumference of the cylinder (204), the first gear (206) meshes with a half gear (202), a second gear (207) is rotatably connected to the circumference of the cylinder (204), a vertical rack (205) slides through the inner wall of the gear cover (201), the vertical rack (205) meshes with the second gear (207), an external pusher (301) is fixedly connected to the top of the vertical rack (205), and a roller (409) is rotatably connected to the inner wall of the inclined plate conveyor belt (3).

2. The dynamic checkweigher with multi-level rejection and sorting function according to claim 1, characterized in that, The inner wall of the push bracket (301) is slidably connected to a lower pressure plate (302), and a hydraulic rod (303) is fixedly connected inside the push bracket (301). One end of the top of the hydraulic rod (303) is fixedly connected to the lower pressure plate (302), and the other end of the hydraulic rod (303) is fixedly connected to a push plate bracket (305). The bottom of the inner wall of the push plate bracket (305) is rotatably connected to a push plate (304).

3. The dynamic checkweigher with multi-level rejection and sorting function according to claim 2, characterized in that, A spring is provided on the inner wall of the push plate bracket (305) and the surface of the push plate (304), and a vertical rack hole is provided at the bottom of the gear cover (201).

4. The dynamic checkweigher with multi-level rejection and sorting function according to claim 3, characterized in that, A right support (404) is fixedly connected to the back of the conveyor belt (4), and a left support (5) is fixedly installed on the front of the conveyor belt (4). One end of a long shaft (405) is rotatably connected to the surface of the right support (404), and the other end of the long shaft (405) is rotatably connected to the surface of the left support (5). A gear frame (402) is fixedly connected to the left side of the right support (404). An upper push plate (403) is rotatably connected to the inner wall of the gear frame (402). A fifth gear (410) is rotatably connected to the inner wall of the gear frame (402). A third gear (407) is rotatably connected to the inner wall of the gear frame (402). A fourth gear (408) is fixedly installed on the surface of the third gear (407). A fourth gear (408) is rotatably connected to the surface of the fourth gear (408). There is a belt (406), the fourth gear (408) meshes with the belt (406), the upper push plate (403) meshes with the fifth gear (410), the fifth gear (410) meshes with the third gear (407), the belt (406) is sleeved on the circumferential surface of the long shaft (405), the long shaft (405) has a right-hand threaded section on the circumferential surface away from the output end, the right-hand threaded section of the long shaft (405) is sleeved on the left clamping plate (412), the inner wall of the left clamping plate (412) is provided with a right-hand threaded section, the circumferential surface of the long shaft (405) has a left-hand threaded section on the circumferential surface of the output end, the left-hand threaded section of the long shaft (405) is sleeved on the right clamping plate (411), the inner wall of the right clamping plate (411) is provided with a left-hand threaded section.

5. The dynamic checkweigher with multi-level rejection and sorting function according to claim 4, characterized in that, A spring plate (413) is slidably installed on the front of the right clamping plate (411), and a clamping plate bracket (414) is fixedly installed on the back of the right clamping plate (411). A rocker plate (415) is rotatably installed on the inner wall of the clamping plate bracket (414). A spiral bracket (417) is fixedly installed on the top of the clamping plate bracket (414). A spiral rod (416) is rotatably installed on the inner wall of the spiral bracket (417). A threaded section is provided on the circumferential surface of the spiral rod (416). A triangular plate (401) is sleeved on the threaded section of the spiral rod (416). An internal threaded section is provided on the inner wall of the triangular plate (401).

6. The dynamic checkweigher with multi-level rejection and sorting function according to claim 5, characterized in that, The back of the spring plate (413) and the front of the right clamping plate (411) are provided with a second spring. The two ends of the rocker (415) are located on the movement trajectory of the spring plate (413) and the screw rod (416) respectively. The surface of the screw rod (416) and the surface of the clamping plate bracket (414) are provided with a third spring.

7. The dynamic checkweigher with multi-level rejection and sorting function according to claim 6, characterized in that, A forked wheel (501) is fixedly installed on the front of the long shaft (405). A slanted block groove is opened on the circumferential surface of the forked wheel (501). A slanted block (502) is slidably connected to the inner wall of the slanted block groove. An air tube support (505) is fixedly installed on the top of the left bracket (5). An air tube (506) is fixedly installed on the top of the air tube support (505). A press-type air valve (504) is provided on the surface of the air tube (506). A slanted protrusion (503) slides through the inner wall of the air tube support (505).

8. The dynamic checkweigher with multi-level rejection and sorting function according to claim 7, characterized in that, The bottom of the tracheal stent (505) is fixedly installed with a wire (507), and the bottom of the inclined block groove and the bottom of the inclined block (502) are provided with a No. 4 spring. The inclined protrusion (503) is on the movement trajectory of the inclined block (502).

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