Continuous dynamic weighing belt feeder

Abstract

The invention relates to the technical field of material conveying, in particular to a continuous dynamic weighing belt feeder. The technical problems that a weighing belt type feeder is large in error and cannot be adjusted in a self-adaptive mode are solved. Comprising a first shell and further comprises a second shell, the second shell is arranged in front of the first shell in a mirror image distribution mode, a constant force spring is arranged between the first shell and the second shell, a sliding column is fixedly connected to the rear side of the second shell, the sliding column is slidably connected with the first shell in a penetrating mode, and a friction ring is fixedly connected to one side in the second shell. When the wave flange conveying belt transports bulk materials, the weight of the bulk materials extrudes the round head rolling rods to move through the wave flange conveying belt, the pressures of the friction connecting rod units on the friction rings are different due to the different positions of the round head rolling rods, and then the generated friction force is different, so that the movement speed of the wave flange conveying belt is adjusted; therefore, the purpose of self-adaptive adjustment is achieved, the measurement precision of the weight of the bulk cargo is improved, and the transportation error of the bulk cargo is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of material conveying, in particular to a continuous dynamic weighing belt feeder. Background Art

[0002] Continuous dynamic weighing belt feeder is a highly efficient and accurate automatic loading equipment, mainly used for continuous automatic conveying of bulk materials and controlling the feeding amount. It is widely used in coal, building materials, chemical industry, metallurgy, electric power, grain and other industries, especially suitable for occasions that require precise control of bulk material feeding amount, and has the characteristics of high efficiency and easy operation.

[0003] The existing continuous dynamic weighing belt feeder installs multiple movable shafts in the middle of the belt feeder and installs two pressure sensors at both ends of one of the movable shafts to achieve dynamic weighing during bulk material transportation, so that the feeding speed of the device and the total amount of feeding are constant, thereby achieving stable feeding. Since the middle of the movable shaft is suspended in the air and squeezed by the conveyor belt, it will bend due to force, and the bulk material distribution of the transmission belt between the two movable shafts is uneven, which makes the pressure sensor have a large error of 1% when receiving pressure information. Once the pressure sensor receives pressure information out of range, the entire device will stop. At this time, the pressure range of the pressure sensor needs to be manually adjusted, which seriously affects the efficiency of bulk material transmission. Summary of the invention

[0004] In order to overcome the shortcomings of existing weighing belt feeders, such as large errors and inability to self-adapt, the present invention aims to provide a continuous dynamic weighing belt feeder with small errors and self-adaptability.

[0005] The technical solution is: a continuous dynamic weighing belt feeder, including a first shell and a second shell. The second shell is arranged in a mirror-image distribution in front of the first shell, a constant force spring is arranged between the first shell and the second shell, a sliding column is fixedly connected to the rear side of the second shell, the sliding column is slidably connected to the first shell, a friction ring is fixedly connected to one side of the inside of the second shell, a weighing mechanism is installed between the two second shells, the weighing mechanism includes a rotating cylinder, a rotating cylinder is rotatably connected in the second shell on the right, a first knob is rotatably connected to one end of the rotating cylinder, a plum blossom rod is fixedly connected to the first knob, a conical ratchet screw is slidably connected to the plum blossom rod, a plurality of ratchet thread plates are threadedly clamped on the outer side of the conical ratchet screw, elastic rings are sleeved on the left and right sides of the plurality of ratchet thread plates, a pressure limiting column is installed at one end of the conical ratchet screw, and an emergency stop assembly is arranged on the left side of the pressure limiting column.

[0006] Preferably, the weighing mechanism also includes a round-headed roller rod, which is slidably connected to the ratchet thread plate, and a first spring is linearly connected between the round-headed roller rod and the ratchet thread plate. A metering mechanism is installed on the rear side of the first shell, and a motor is installed on one side of the outside of the first shell, and the motor is connected to the metering mechanism. Several round-headed rollers and the metering mechanism are commonly connected to a corrugated side guard conveyor belt.

[0007] Preferably, the weighing mechanism also includes a friction link unit installed on the left and right sides of the round-headed roller, the friction link unit includes a sliding rod and a second link, rectangular grooves are opened on the left and right sides of the round-headed roller, the sliding rod is fixed in the rectangular groove, a first sliding block is slidably connected to the sliding rod, a second spring is connected between the first sliding block and the rectangular groove, one side of the first sliding block is rotatably connected to the first link, both sides of the round-headed roller located above the first link are rotatably connected to the second link, one end of the second link and one end of the first link are rotatably connected to the friction block, an elastic support frame is fixed to the bottom of the first sliding block, and one end of the elastic support frame is fixed to the ratchet thread plate.

[0008] Preferably, the weighing mechanism also includes a rotating shell, one end of several ratchet thread plates are slidably connected to the rotating shell, the pressure limiting column passes through the rotating shell, and several first rectangular through grooves are opened on the rotating shell. Several first connecting rods located on the left side are rotatably connected to the third connecting rod, and the third connecting rod passes through the first rectangular through groove and is rotatably connected to the pressure limiting column.

[0009] Preferably, the emergency stop assembly includes a first roller, which is rotatably connected in the rotating shell, the first roller is fixedly connected to the second shell on the left, one end of the first roller is fixedly connected to the first emergency stop button, and the first emergency stop button is located on the left side of the pressure limiting column.

[0010] Preferably, the metering mechanism includes a second roller, which is rotatably connected in the first shell, and a plurality of round-headed rollers are sleeved together with the second rollers to connect the corrugated edge conveyor belt. One end of the second roller is fixedly connected to the output shaft of the motor, and the other end is equipped with a spur gear set, and a rotating rod is installed on the spur gear set, and a speed limiting unit is installed at one end of the rotating rod.

[0011] Preferably, the metering mechanism also includes a third shell, the third shell is fixedly connected to the right side of the first shell, the second sliding block is slidably connected to the third shell, a second rectangular through groove is opened on the right side of the first shell, a handle is slidably connected to the second rectangular through groove, one end of the handle is fixed to the second sliding block, and a second emergency stop button is installed at the rear end of the third shell.

[0012] Preferably, the speed limiting unit includes a first support plate, one end of a rotating rod is fixedly connected to the first support plate, a plurality of fourth connecting rods are circumferentially distributed and rotatably connected to the right side of the first support plate, one end of the fourth connecting rod is rotatably connected to a counterweight block, a fifth connecting rod is rotatably connected to the counterweight block, the plurality of fifth connecting rods are rotatably connected to the second support plate together, and a line-releasing unit is arranged on the right side of the second support plate.

[0013] Preferably, the line-releasing unit includes a limit cylinder, a rotating rope rack and a friction pad. The limit cylinder is fixedly connected to the right side of the first shell and is rotatably connected to the rotating rope rack. A constant force spring is connected between the inner wall of the rotating rope rack and the first shell. The friction pad is rotatably connected to the right side of the second support disk. The outer wall of the friction pad is in sliding contact with the limit cylinder and is in contact with the rotating rope rack on the right side. A metal rope is wound around the rotating rope rack. One end of the metal rope passes through the limit cylinder and the third shell and is fixed to the second sliding block.

[0014] Preferably, it also includes a sliding rod, which is mirror-distributed and slidably connected to the top of the first shell, and a baffle is fixedly connected to the bottom of the two sliding rods. A threaded groove is provided on the top of the baffle, and a threaded rod is threadedly connected in the threaded groove. The threaded rod is rotatably connected to the first shell, and a second knob is fixedly connected to the top.

[0015] The present invention has the following advantages: 1. When the corrugated sidewall conveyor belt of the present invention is used to transport bulk materials, the weight of the bulk materials will be moved by squeezing the round-headed roller rod through the corrugated sidewall conveyor belt. The different positions of the round-headed roller rod will cause different pressures of the friction link unit on the friction ring, and thus different friction forces will be generated. The movement speed of the corrugated sidewall conveyor belt can be adjusted in this way, thereby achieving the purpose of adaptive regulation, improving the measurement accuracy of the bulk material weight, and reducing errors in bulk material transportation.

[0016] 2. When the corrugated sidewall conveyor belt of the present invention is transporting bulk materials, the round-head roller is moved by the weight of the bulk materials, so that the length of the friction link unit extended through the third link when it is active is different, thereby controlling the length and position of the pressure-limiting column, and then controlling the position of the conical ratchet screw. The position of the round-head roller is adaptively adjusted by the ratchet thread plate and the first spring, thereby avoiding the situation in the prior art where the bulk materials are too heavy and stop directly, thereby improving the transportation efficiency of the bulk materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial cutaway schematic diagram of the second housing of the present invention; Figure 3 It is a structural schematic diagram of the weighing mechanism of the present invention; Figure 4 It is a half-section schematic diagram of the rotating drum of the present invention; Figure 5 A half-section schematic diagram of a round-head rolling rod of the present invention; Figure 6 It is a partial cutaway schematic diagram of the friction link unit of the present invention; Figure 7 is a schematic diagram of the first roller structure of the present invention; Figure 8 It is a schematic diagram of the structure of the metering mechanism of the present invention; Fig. 9 It is an enlarged schematic diagram of point A of the present invention; Fig.10 It is a partial cutaway schematic diagram of the speed limiting unit of the present invention; Fig.11 It is a schematic diagram of the explosion of the speed limiting unit of the present invention; Fig.12 It is a schematic diagram of the threaded rod structure of the present invention.

[0018] Among them: 1-first shell, 101-sliding rod, 102-blocking plate, 103-threaded rod, 104-second knob, 2-second shell, 201-sliding column, 202-friction ring, 3-weighing mechanism, 301-rotating cylinder, 302-first knob, 303-plum blossom rod, 304-conical ratchet screw, 305-pressure limiting column, 306-ratchet threaded plate, 3061-elastic ring, 307-round head roller, 308-friction connecting rod unit, 3081-sliding rod, 3082-first sliding block, 3083-first connecting rod, 3084-second connecting rod, 3085-friction block, 3086-elastic support frame, 309 -rotating housing, 310-third connecting rod, 311-first roller, 312-first emergency stop button, 4-metering mechanism, 401-second roller, 402-spur gear set, 403-rotating rod, 404-speed limiting unit, 4041-first supporting disk, 4042-fourth connecting rod, 4043-counterweight, 4044-fifth connecting rod, 4045-second supporting disk, 405-line release unit, 4051-limiting cylinder, 4052-rotating rope rack, 4053-friction pad, 406-third housing, 407-second sliding block, 408-handle, 409-second emergency stop button, 5-wave guard conveyor belt, 6-motor. DETAILED DESCRIPTION

[0019] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified. Example 1

[0020] A continuous dynamic weighing belt feeder, such as Figure 1-Figure 7 As shown, it includes a first shell 1, which is T-shaped and also includes a second shell 2. The second shell 2 is arranged in a mirror-image distribution in front of the first shell 1, and a constant force spring is arranged between the first shell 1 and the second shell 2. The constant force spring is used to keep the force magnitude of the second shell 2 unchanged when it is squeezed. A sliding column 201 is fixedly connected to the rear side of the second shell 2, and the sliding column 201 is connected to the first shell 1 in a through-type sliding manner. A friction ring 202 is fixedly connected to one side of the second shell 2. A weighing mechanism 3 is installed between the two second shells 2. The weighing mechanism 3 includes a rotating cylinder 301. The rotating cylinder 301 is rotatably connected in the second shell 2 on the right side, and one end of the rotating cylinder 301 is rotatably connected to the first Knob 302, a plum blossom rod 303 is fixedly connected to the first knob 302, and a conical ratchet screw 304 is slidably connected to the plum blossom rod 303, the ratchet bevel of the conical ratchet screw 304 faces left, and the ratchet plane faces right, and a plurality of ratchet thread plates 306 are clamped with circumferentially distributed threads on the outer side of the conical ratchet screw 304, and elastic rings 3061 are sleeved on the left and right sides of the plurality of ratchet thread plates 306, and the elastic ring 3061 is used for the ratchet thread plate 306 to always fit the conical ratchet screw 304, and a limiting pressure column 305 is installed at one end of the conical ratchet screw 304, the limiting pressure column 305 can be compressed and deformed, and can automatically reset when no force is applied, and an emergency stop assembly is arranged on the left side of the limiting pressure column 305.

[0021] The weighing mechanism 3 also includes a round-headed roller rod 307, which is slidably connected to the ratchet thread plate 306, and a first spring is linearly connected between the round-headed roller rod 307 and the ratchet thread plate 306, and the first spring is always in a compressed state. A metering mechanism 4 is installed on the rear side of the inside of the first shell 1, and a motor 6 is installed on one side of the outside of the first shell 1, and the motor 6 is connected to the metering mechanism 4. Several round-headed roller rods 307 and the metering mechanism 4 are commonly connected to a corrugated rib conveyor belt 5, and corrugated ribs are provided at the left and right ends of the corrugated rib conveyor belt 5 to prevent bulk materials from being scattered into the first shell 1 along the left and right sides.

[0022] The weighing mechanism 3 also includes a friction link unit 308 installed on the left and right sides of the round-headed roller 307, and the friction link unit 308 includes a sliding rod 3081 and a second link 3084. Rectangular grooves are provided on the left and right sides of the round-headed roller 307, and the sliding rod 3081 is fixed in the rectangular groove. A first sliding block 3082 is slidably connected to the sliding rod 3081, and a second spring is connected between the first sliding block 3082 and the rectangular groove. A first link 3083 is rotatably connected to one side of the first sliding block 3082, and the second link 3084 is rotatably connected to both sides of the round-headed roller 307 above the first link 3083. One end of the second link 3084 and one end of the first link 3083 are rotatably connected to a friction block 3085. An elastic support frame 3086 is fixed to the bottom of the first sliding block 3082, one end of the elastic support frame 3086 is fixed to the ratchet thread plate 306, and the elastic support frame 3086 is slidably connected to the sliding rod 3081.

[0023] The weighing mechanism 3 also includes a rotating shell 309, one end of a plurality of ratchet thread plates 306 are slidably connected to the rotating shell 309, the pressure limiting column 305 passes through the rotating shell 309, and a plurality of first rectangular through grooves are opened on the rotating shell 309. The bottom of a plurality of first connecting rods 3083 located on the left side are rotatably connected to the third connecting rod 310, the third connecting rod 310 passes through the first rectangular through groove and is rotatably connected to the pressure limiting column 305, and the end of the third connecting rod 310 close to the pressure limiting column 305 is always facing the left side in the horizontal direction.

[0024] The emergency stop assembly includes a first roller 311, which is rotatably connected in the rotating shell 309, and is fixedly connected to the second shell 2 on the left. A first emergency stop button 312 is fixedly connected to one end of the first roller 311. The first emergency stop button 312 only sends an electrical signal when it is just pressed. The first emergency stop button 312 is located on the left side of the pressure limiting column 305.

[0025] In the initial state, before using the device, the staff should turn the first knob 302, and the first knob 302 drives the conical ratchet screw 304 to rotate through the plum blossom rod 303. When the conical ratchet screw 304 rotates, it will move left and right along the ratchet thread plate 306. At the same time, the ratchet thread plate 306 will move along the radius of the conical ratchet screw 304. If the two relative ratchet thread plates 306 move away from each other, the ratchet thread plates 306 move through the first spring to squeeze the round head roller 307, thereby causing the round head roller 307 to squeeze the corrugated edge conveyor belt 5 and compress the first spring. If the two relative ratchet thread plates 306 move away from each other, the ratchet thread plates 306 will move to squeeze the round head roller 307 through the first spring, and then the round head roller 307 will squeeze the corrugated edge conveyor belt 5 and compress the first spring. When the ratchet thread plates 306 are close to each other, the first spring is released to keep the round-head roller 307 stationary while the ratchet thread plates 306 move, wherein the compression force law of the first spring within the elastic range conforms to Hooke's law, that is, the longer the deformation length of the first spring, the greater the force required for further deformation of the first spring. Therefore, when there is bulk material on the corrugated rib conveyor belt 5, the weight of the bulk material will squeeze the round-head roller 307 through the corrugated rib conveyor belt 5 to move, so that the round-head roller 307 approaches the ratchet thread plate 306 and squeezes the first spring, and at the same time squeezes the first sliding block 3082 through the second spring. It is worth noting that the elastic support frame 3086 can support the first sliding block 3082, so the moving distance of the first sliding block 3082 is smaller than the round-head roller 307. Since the force is mutual, while the second spring squeezes the first sliding block 3082, the elastic support frame 3086 also squeezes the second spring through the first sliding block 3082, and the elastic support frame 3086 will not be deformed too much. When the bulk material gradually increases, the round-head roller 307 will further squeeze the first spring and be affected by the elastic support frame 3086 to squeeze the second spring; when the bulk material gradually decreases, The first spring release pushes the round-headed roller 307, causing the round-headed roller 307 to move away from the ratchet thread plate 306 and squeeze the corrugated side guard conveyor belt 5, so that the elastic force of the first spring balances the weight of the bulk material. At the same time, the elastic force of the second spring and the elastic support frame 3086 is released, and the elastic force of the elastic support frame 3086 moves the first sliding block 3082 away from the ratchet thread plate 306. According to the compression degree of the first spring, the weight of the bulk material on the corrugated side guard conveyor belt 5 can be judged, thereby facilitating the subsequent weighing mechanism 3 to adjust its own rotation speed based on the compression degree of the first spring, thereby controlling the running speed of the corrugated side guard conveyor belt 5.

[0026] After adjusting the angle of the first knob 302, the staff pours the bulk material onto the corrugated rib conveyor belt 5 and starts the motor 6. The output shaft of the motor 6 rotates counterclockwise through the metering mechanism 4 to drive the corrugated rib conveyor belt 5 to operate, thereby causing the corrugated rib conveyor belt 5 to drive the round-head roller 307 to rotate and transport the bulk material to the round-head roller 307. The bulk material transported to the round-head roller 307 will squeeze the corrugated rib conveyor belt 5 by its own weight, and the corrugated rib conveyor belt 5 squeezes the round-head roller 307, causing the round-head roller 307 to rotate. 07 The radius around the conical ratchet screw 304 becomes smaller and compresses the first spring. The first spring can judge the weight of the bulk material on the corrugated edge conveyor belt 5 according to its own compression degree. At the same time, the round-headed roller 307 moves through the second spring to squeeze the first sliding block 3082. The first sliding block 3082 moves to squeeze the elastic support frame 3086. The second spring and the elastic support frame 3086 are deformed. When the round-headed roller 307 rotates, the first connecting rod is driven through the sliding rod 3081 and the first sliding block 3082. 3083 rotates synchronously, the first connecting rod 3083 drives the pressure limiting column 305 and the rotating shell 309 to rotate through the third connecting rod 310, the rotation of the pressure limiting column 305 drives the conical ratchet screw 304 to rotate, the rotation of the conical ratchet screw 304 drives the first knob 302 and the rotating cylinder 301 to rotate synchronously through the plum blossom rod 303, and at the same time, the rotation of the round head roller 307 drives the ratchet thread plate 306 to rotate, so that the rotation of the conical ratchet screw 304 and the ratchet thread plate 306 is kept synchronous. 307 supports the front end of the corrugated sidewall conveyor belt 5, so the round-headed roller 307 has a larger force-bearing surface compared with the movable shaft in the prior art. When the pressure of the deformation of the corrugated sidewall conveyor belt 5 acts on the first spring through the round-headed roller 307, the pressure distribution will be more uniform and stable, and the bending deformation of the round-headed roller 307 when under pressure will be smaller, so that the linearly distributed first spring is subjected to a more even force when judging the weight of the bulk material, thereby reducing the error between the round-headed roller 307 and the first spring when judging the weight of the bulk material.

[0027] The weight of the bulk material will squeeze the round roller 307 through the corrugated edge conveyor belt 5, so that the round roller 307 is close to the ratchet thread plate 306. The round roller 307 is affected by the elastic support frame 3086, and the round roller 307 squeezes the second spring. The closer the round roller 307 is to the ratchet thread plate 306, the tighter the second spring contracts. During the rotation of the round roller 307, the first sliding block 3082 slides along the sliding rod 3081 under the action of centrifugal force and further squeezes the second spring, while driving the first link 3084 to rotate. The rod 3083 rotates synchronously with the second connecting rod 3084, so that the friction block 3085 moves synchronously close to the friction ring 202. When the friction block 3085 contacts the friction ring 202, the friction force between the friction ring 202 and the friction block 3085 can decelerate the friction block 3085, so that the rotation speed of the friction block 3085 slows down. The deceleration of the friction block 3085 acts on the round-headed roller 307 through the second connecting rod 3084, so that the round-headed roller 307 drives the corrugated sidewall conveyor belt 5 to decelerate. When the bulk material on the corrugated sidewall conveyor belt 5 gradually increases, the friction block 3085 decelerates. When the round roller 307 is closer to the ratchet thread plate 306, and the first sliding block 3082 is supported by the elastic support frame 3086, the moving distance of the first sliding block 3082 is smaller than the round roller 307, thereby further squeezing the second spring and making the friction block 3085 closer to the friction ring 202, thereby increasing the friction between the friction block 3085 and the friction ring 202, further decelerating the corrugated rib conveyor belt 5; when the bulk material on the corrugated rib conveyor belt 5 gradually decreases, the round roller 307 moves away from the ratchet thread plate 306, And release the second spring, the first sliding block 3082 is in a stationary state relative to the round-headed roller 307, and the round-headed roller 307 moves through the second connecting rod 3084 to drive the friction block 3085 away from the friction ring 202, thereby reducing the friction between the friction block 3085 and the friction ring 202, thereby increasing the running speed of the corrugated sidewall conveyor belt 5, thereby enabling the running speed of the corrugated sidewall conveyor belt 5 to be preliminarily adaptively adjusted, so that the speed of the corrugated sidewall conveyor belt 5 for transporting bulk materials is kept the same as the bulk material transporting speed required by the staff.

[0028] When the first sliding block 3082 slides, the first sliding block 3082 on the left side drives the left end of the pressure limiting column 305 to move to the right through the first connecting rod 3083 and the third connecting rod 310. Since the ratchet inclined surface of the ratchet thread plate 306 faces left and the ratchet plane faces right, the right end of the pressure limiting column 305 remains stationary, and the pressure limiting column 305 is deformed, so that the pressure limiting column 305 shrinks toward the direction of the conical ratchet screw 304. At this time, the pressure limiting column 305 is away from the first emergency stop button 312, so that the first emergency stop button 312 is no longer squeezed, and the pressure limiting column 305 is pressed. When the column 305 is deformed and contracted, it will not drive the conical ratchet screw 304 to move synchronously. As the weight of the bulk material continues to increase, the corrugated rib conveyor belt 5 is affected by the preliminary adaptive adjustment, and the running speed of the corrugated rib conveyor belt 5 will slow down, so that the corrugated rib conveyor belt 5 drives the round-headed roller rod 307 to decelerate and rotate, and repeats the above-mentioned action of the round-headed roller rod 307 compressing the first spring. The round-headed roller rod 307 rotates and drives the first sliding block 3082 to decelerate and rotate synchronously through the sliding rod 3081. The first sliding block 3082 decelerates as the speed decelerates. It is worth noting that the centrifugal force of the first sliding block 3082 becomes smaller, but the weight borne by the round-headed roller 307 increases, and the round-headed roller 307 will still squeeze the second spring. When the second spring contracts to the extreme, the round-headed roller 307 will squeeze the first sliding block 3082 through the second spring, the first sliding block 3082 squeezes the elastic support frame 3086, and the first connecting rod 3083 squeezes the third connecting rod 310. The third connecting rod 310 drives the left end of the pressure-limiting column 305 to move leftward, so that the pressure-limiting column 305 recovers its shape. As the weight of the material continues to increase, the pressure limiting column 305 moves to the left as a whole, and drives the conical ratchet screw 304 to slide to the left along the ratchet inclined surface of the ratchet thread plate 306. During this period, the ratchet thread plate 306, under the action of the elastic ring 3061, reciprocates along the ratchet inclined surface and ratchet plane of the ratchet thread plate 306, and the distance between adjacent ratchet thread plates 306 gradually increases, so that the first spring can judge the gradually increasing weight of the bulk material, and realize further adaptive adjustment of the running speed of the corrugated sidewall conveyor belt 5 through the gravity of the bulk material.

[0029] If the weight of the bulk material is too heavy, it means that too much bulk material is piled up on the corrugated side guard conveyor belt 5, and the corrugated side guard conveyor belt 5 cannot be further adaptively adjusted to ensure that the transportation speed is consistent with the required speed. At this time, the pressure limiting column 305 is further squeezed by the third connecting rod 310, and moving to the left will squeeze the first emergency stop button 312. The first emergency stop button 312 sends a stop signal to the motor 6 to stop the motor 6 to prevent the corrugated side guard conveyor belt 5 from transporting too much bulk material, resulting in a large difference between the speed of the corrugated side guard conveyor belt 5 transporting bulk material and the required speed of the bulk material transported by the staff. It is worth noting that the staff should reasonably adjust the angle of the first knob 302 before starting the motor 6 each time to reduce the time of the adaptive adjustment process. Example 2

[0030] On the basis of Example 1, Figure 8-Figure 11 As shown, the metering mechanism 4 includes a second roller 401, which is rotatably connected in the first shell 1, and a plurality of round-headed rollers 307 and the second rollers 401 are sleeved together to connect the corrugated rib conveyor belt 5. One end of the second roller 401 is fixedly connected to the output shaft of the motor 6, and the other end is equipped with a spur gear set 402, which includes a driving gear and a driven gear that mesh with each other. The other end of the second roller 401 is fixedly connected to the driving gear, and the inner wall of the first shell 1 is rotatably connected to the driven gear, and a rotating rod 403 is fixedly connected to the driven gear. A speed limiting unit 404 is installed at one end of the rotating rod 403, and the speed limiting unit 404 can adjust the pressure according to the rotation speed.

[0031] The metering mechanism 4 also includes a third shell 406, which is fixedly connected to the right side of the first shell 1, and a second sliding block 407 is slidably connected to the third shell 406. A second rectangular through groove is opened on the right side of the first shell 1, and a handle 408 is slidably connected to the second rectangular through groove. One end of the handle 408 is fixedly connected to the second sliding block 407, and a second emergency stop button 409 is installed at the rear end of the third shell 406. The second emergency stop button 409 sends an electrical signal only when it is just pressed.

[0032] The speed limiting unit 404 includes a first support plate 4041, one end of the rotating rod 403 is fixedly connected to the first support plate 4041, a plurality of fourth connecting rods 4042 are circumferentially distributed and rotatably connected to the right side of the first support plate 4041, one end of the fourth connecting rod 4042 is rotatably connected to a counterweight block 4043, the counterweight block 4043 is rotatably connected to a fifth connecting rod 4044, the fourth connecting rod 4042 and the fifth connecting rod 4044 are arranged in a mirror-image distribution, one end of a plurality of fifth connecting rods 4044 are rotatably connected to a second support plate 4045, and a wire-releasing unit 405 is arranged on the right side of the second support plate 4045, and the wire-releasing unit 405 is used to calculate the total amount of bulk material transported.

[0033] The line-releasing unit 405 includes a limiting cylinder 4051, a rotating rope rack 4052 and a friction pad 4053. The limiting cylinder 4051 is fixedly connected to the right side of the first shell 1 and is rotatably connected to the rotating rope rack 4052. A constant force spring is connected between the inner wall of the rotating rope rack 4052 and the first shell 1. The friction pad 4053 is rotatably connected to the right side of the second support disk 4045. The outer wall of the friction pad 4053 is in sliding contact with the limiting cylinder 4051, and the right side is in contact with the rotating rope rack 4052. The friction pad 4053 squeezes the rotating rope rack 4052 to adjust the rotation speed of the rotating rope rack 4052. A metal rope is wound around the rotating rope rack 4052. One end of the metal rope passes through the limiting cylinder 4051 and the third shell 406, and is fixedly connected to the second sliding block 407.

[0034] If the staff needs to weigh a specified weight of bulk material, the staff will push the handle 408 forward so that the handle 408 drives the second sliding block 407 to slide in the third shell 406, and the second sliding block 407 will be loosened and away from the second emergency stop button 409, and pull the metal rope to rotate the rotating rope frame 4052 and deform the constant force spring. Then, the motor 6 is started, and the output shaft of the starter motor 6 rotates to drive the second roller 401 to rotate counterclockwise. On the one hand, the second roller 401 rotates counterclockwise through the wave guard conveyor belt 5 to drive the round head roller rod 307 to rotate simultaneously. The weighing mechanism 3 repeats the above-mentioned conveyor belt speed control process. On the other hand, the second roller 401 rotates to drive the rotating rod 403 to rotate clockwise through the spur gear set 402. The rotating rod 403 rotates clockwise to drive the first supporting plate 4041 to rotate synchronously. The counterweight block 4043 is driven to rotate centrifugally through the fourth connecting rod 4042 on the left side, so that the counterweight blocks 4043 move away from each other. The movement of the counterweight block 4043 drives the fourth connecting rod 4042 and the fifth connecting rod 4044 to rotate synchronously, so that the second supporting plate 4045 is moved by the fifth connecting rod 4044. 44 drives the rotating rope frame 4052 to move to the left at the same time. It is worth noting that in the initial state, the friction pad 4053 squeezes the rotating rope frame 4052, so that the rotating rope frame 4052 is limited by friction. The elastic force of the constant force spring is not enough to drive the limited rotating rope frame 4052 to rotate. The second support plate 4045 moves to the left to drive the friction pad 4053 to reduce the pressure on the rotating rope frame 4052, thereby reducing the friction force on the rotating rope frame 4052. The rotating rope frame 4052 rotates under the action of the constant force spring, and the rotating rope frame 4052 reels the metal rope, so that The second sliding block 407 slides backward and drives the handle 408 to reset. When the second sliding block 407 resets, the second sliding block 407 squeezes the second emergency stop button 409, and the second emergency stop button 409 sends an electrical signal to the motor 6 to stop it. The second sliding block 407 no longer slides due to the squeezing of the second emergency stop button 409, so that the second sliding block 407 limits the rotation of the rotating rope rack 4052 through the metal rope. At this time, the bulk materials of the specified weight are transmitted by the corrugated side guard conveyor belt 5, and the remaining bulk materials will stay on the corrugated side guard conveyor belt 5 for the next feeding.

[0035] In order to prevent bulk materials from accumulating on the corrugated sidewall conveyor belt 5 and causing excessive extrusion tension of the bulk materials on the corrugated sidewall conveyor belt 5, which may damage the corrugated sidewall conveyor belt 5, the tension of the corrugated sidewall conveyor belt 5 will act on the first spring through the round-head roller 307. The first spring is compressed and further squeezes the conical ratchet screw 304 through the ratchet thread plate 306. Then the force pushes the rotating cylinder 301 along the plum blossom rod 303 and pushes the second shell 2 to squeeze the constant force spring. The constant force spring contracts to release the excessive tension of the corrugated sidewall conveyor belt 5. Example 3

[0036] On the basis of Example 1, Fig.12As shown, it also includes a sliding rod 101, and the sliding rod 101 is mirror-distributed and slidably connected to the top of the first shell 1, and a baffle 102 is fixedly connected to the bottom of the two sliding rods 101. A threaded groove is opened on the top of the baffle 102, and a threaded rod 103 is threadedly connected in the threaded groove. The threaded rod 103 is rotatably connected to the first shell 1, and a second knob 104 is fixedly connected to the top.

[0037] In order to prevent the distribution difference of bulk materials on the corrugated side conveyor belt 5 from being too large, the staff needs to turn the second knob 104 before dynamically weighing the bulk materials. The rotation of the second knob 104 drives the threaded rod 103 to rotate synchronously. The rotation of the threaded rod 103 causes the baffle 102 to slide up and down under the limit of the slide rod 101, so that the bulk materials can be evenly spread on the corrugated side conveyor belt 5 under the obstruction of the baffle 102, thereby preventing the distribution difference of bulk materials on the corrugated side conveyor belt 5 from being too large.

[0038] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A continuous dynamic weighing belt feeder, comprising a first housing (1), characterized in that: The second housing (2) is also provided in a mirror-image arrangement in front of the first housing (1), a constant force spring is provided between the first housing (1) and the second housing (2), a sliding column (201) is fixedly connected to the rear side of the second housing (2), the sliding column (201) is slidably connected to the first housing (1), a friction ring (202) is fixedly connected to one side of the interior of the second housing (2), a weighing mechanism (3) is installed between the two second housings (2), the weighing mechanism (3) comprises a rotating cylinder (301), and a rotating cylinder (201) is rotatably connected to the interior of the second housing (2) on the right side. 301), a first knob (302) is rotatably connected to one end of the rotating cylinder (301), a plum blossom rod (303) is fixedly connected to the first knob (302), a conical ratchet screw (304) is slidably connected to the plum blossom rod (303), a plurality of ratchet thread plates (306) are clamped in a circumferentially distributed thread on the outer side of the conical ratchet screw (304), elastic rings (3061) are sleeved on both sides of the left and right sides of the plurality of ratchet thread plates (306), a pressure limiting column (305) is installed at one end of the conical ratchet screw (304), and an emergency stop assembly is arranged on the left side of the pressure limiting column (305).

2. A continuous dynamic weighing belt feeder according to claim 1, characterized in that: The weighing mechanism (3) further comprises a round-headed roller (307), the round-headed roller (307) being slidably connected to the ratchet thread plate (306), a first spring being linearly connected between the round-headed roller (307) and the ratchet thread plate (306), a metering mechanism (4) being installed on the rear side of the interior of the first housing (1), a motor (6) being installed on one side of the exterior of the first housing (1), the motor (6) being connected to the metering mechanism (4), and a plurality of round-headed rollers (307) and the metering mechanism (4) being commonly connected to a corrugated sidewall conveyor belt (5).

3. A continuous dynamic weighing belt feeder according to claim 2, characterized in that: The weighing mechanism (3) further comprises a friction link unit (308) mounted on the left and right sides of the round-headed roller (307), the friction link unit (308) comprising a sliding rod (3081) and a second link (3084), a rectangular groove is provided on the left and right sides of the round-headed roller (307), the sliding rod (3081) is fixedly connected in the rectangular groove, a first sliding block (3082) is slidably connected to the sliding rod (3081), a second spring is connected between the first sliding block (3082) and the rectangular groove, and the first One side of the sliding block (3082) is rotatably connected to the first connecting rod (3083), both sides of the round-headed roller (307) located above the first connecting rod (3083) are rotatably connected to the second connecting rod (3084), one end of the second connecting rod (3084) and one end of the first connecting rod (3083) are rotatably connected to a friction block (3085), and an elastic support frame (3086) is fixedly connected to the bottom of the first sliding block (3082), and one end of the elastic support frame (3086) is fixedly connected to the ratchet thread plate (306).

4. A continuous dynamic weighing belt feeder according to claim 3, characterized in that: The weighing mechanism (3) further comprises a rotating shell (309), one end of a plurality of ratchet thread plates (306) being slidably connected to the rotating shell (309), a pressure-limiting column (305) passing through the rotating shell (309), a plurality of first rectangular through slots being provided on the rotating shell (309), a plurality of first connecting rods (3083) located on the left side being rotatably connected to a third connecting rod (310), the third connecting rod (310) passing through the first rectangular through slot and being rotatably connected to the pressure-limiting column (305).

5. A continuous dynamic weighing belt feeder according to claim 4, characterized in that: The emergency stop assembly comprises a first roller (311), the first roller (311) being rotatably connected in a rotating housing (309), the first roller (311) being fixedly connected to a second housing (2) on the left side, a first emergency stop button (312) being fixedly connected to one end of the first roller (311), and the first emergency stop button (312) being located on the left side of the pressure limiting column (305).

6. A continuous dynamic weighing belt feeder according to claim 5, characterized in that: The metering mechanism (4) comprises a second roller (401), the second roller (401) is rotatably connected in the first housing (1), a plurality of round-headed rollers (307) and the second roller (401) are sleeved together to connect the corrugated edge conveyor belt (5), one end of the second roller (401) is fixedly connected to the output shaft of the motor (6), and the other end is mounted with a spur gear set (402), a rotating rod (403) is mounted on the spur gear set (402), and a speed limiting unit (404) is mounted on one end of the rotating rod (403).

7. A continuous dynamic weighing belt feeder according to claim 6, characterized in that: The metering mechanism (4) further comprises a third housing (406), the third housing (406) being fixedly connected to the right side of the first housing (1), a second sliding block (407) being slidably connected to the third housing (406), a second rectangular through slot being provided on the right side of the first housing (1), a handle (408) being slidably connected to the second rectangular through slot, one end of the handle (408) being fixedly connected to the second sliding block (407), and a second emergency stop button (409) being installed at the rear end of the third housing (406).

8. A continuous dynamic weighing belt feeder according to claim 7, characterized in that: The speed limiting unit (404) comprises a first support disk (4041), one end of a rotating rod (403) is fixedly connected to the first support disk (4041), a plurality of fourth connecting rods (4042) are circumferentially distributed and rotatably connected to the right side of the first support disk (4041), one end of the fourth connecting rod (4042) is rotatably connected to a counterweight block (4043), a fifth connecting rod (4044) is rotatably connected to the counterweight block (4043), the plurality of fifth connecting rods (4044) are rotatably connected to a second support disk (4045), and a line-releasing unit (405) is arranged on the right side of the second support disk (4045).

9. A continuous dynamic weighing belt feeder according to claim 8, characterized in that: The line-releasing unit (405) comprises a limit cylinder (4051), a rotating rope frame (4052) and a friction pad (4053); the limit cylinder (4051) is fixedly connected to the right side of the first housing (1) and is rotatably connected to the rotating rope frame (4052); a constant-force spring is connected between the inner wall of the rotating rope frame (4052) and the first housing (1); the friction pad (4053) is rotatably connected to the right side of the second support plate (4045); the outer wall of the friction pad (4053) is in sliding contact with the limit cylinder (4051), and the right side is in contact with the rotating rope frame (4052); a metal rope is wound around the rotating rope frame (4052); one end of the metal rope passes through the limit cylinder (4051) and the third housing (406), and is fixedly connected to the second sliding block (407).

10. A continuous dynamic weighing belt feeder according to claim 9, characterized in that: It also includes a sliding rod (101), the sliding rod (101) is mirror-distributed and slidably connected to the top of the first shell (1), the bottoms of the two sliding rods (101) are commonly fixedly connected to a baffle (102), the top of the baffle (102) is provided with a threaded groove, a threaded rod (103) is threadedly connected in the threaded groove, the threaded rod (103) is rotatably connected to the first shell (1), and a second knob (104) is fixedly connected to the top.

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