A vibrating feeder

Abstract

The present invention relates to the technical field of vibrating feeders, and specifically discloses a vibrating feeder, comprising: a frame, an exciter and a feeding trough, wherein the feeding trough comprises a first trough and a second trough, wherein the second trough is connected to the bottom of the first trough, and the second trough is tilted to the right. At least one layer of screen parallel to the bottom of the second trough is arranged from bottom to top in the second trough, and the screen divides the second trough into at least two layers of trough bodies, an upper and a lower trough body, and a partition is arranged at the lower left side of the screen to divide the trough body below it into two left and right spaces. The screen comprises a fixed column arranged parallel to the second trough and a plurality of movable rods extending in the front and rear directions, an elastic member is installed between each movable rod and the fixed column, and a blocking member for closing the trough body is provided at the front end of each layer of the trough body, an elastic pushing member is installed on the blocking member, and a locking assembly is also installed on one side of each elastic pushing member; the screen of the present invention is small in size to facilitate cleaning, and the crushing efficiency of the material is improved by intermittently causing the material to fall.

Description

Technical Field

[0001] The present invention relates to the technical field of vibrating feeders, in particular to a vibrating feeder. Background Art

[0002] A vibrating feeder is a mechanical device that uses controllable vibration excitation force to drive the trough to move periodically, thereby achieving continuous, quantitative, and directional transportation of materials from storage to processing equipment. It is used in mining, metallurgy, chemical industry, building materials, food and other industries.

[0003] The Chinese patent document with the authorization announcement number CN110482147B discloses a vibrating feeder, comprising a frame; a screen plate and a combined screening device are arranged in the frame; the combined screening device is provided with at least one layer of screen plate, and is arranged below the screen plate; a vibrating bar, the vibrating bar being movably arranged in the screen plate; wherein the vibrating bar comprises a solid section and a hollow section, and the solid section and the hollow section of two adjacent vibrating bars are arranged alternately. The beneficial effect is that the return spring member can provide elastic potential energy for the vibrating bar, and utilize the difference in the center of gravity of adjacent vibrating bars to generate axial dislocation movement, so that stone impurities can produce relative effects between the vibrating bars, facilitating the impurities to quickly pass through the screen plate, and according to the specific shapes of the first screen plate and the second screen plate, the time that the stone can stay between the vibrating bars can be increased, and the vibrating bar with axial movement can greatly improve the efficiency of stone screening.

[0004] In the above patent document, by adjusting the specific shapes of the first screening plate and the second screening plate, the time that the stone can stay between the vibration bars can be increased, and the efficiency of stone screening can be improved by cooperating with the axially moving vibration bars. When conveying materials such as crushed stone, since the number of crushed stones of different diameters is different, if the number of crushed stones to be crushed is relatively small, the stones falling into the crusher will be discontinuous, which will lead to lower crushing efficiency of the crusher and difficulty in forming efficient coordination between the crusher and the vibrating feeder. Summary of the Invention

[0005] The present invention provides a vibrating feeder, aiming to solve the problem in the related art that it is difficult to form efficient cooperation between the vibrating feeder and the crusher.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: a vibrating feeder, comprising: a frame, an exciter and a feed trough, the feed trough comprising trough one and trough two, trough two is connected to the bottom of trough one, trough two is tilted to the right, at least one layer of screen parallel to the bottom of trough two is arranged from bottom to top in trough two, the screen divides trough two into at least two layers of trough bodies, a partition is arranged below the left side of the screen to divide the trough body below it into a left space and a right space, the screen comprises a fixed column arranged parallel to trough two and a plurality of movable rods extending in the front and rear directions, an elastic member is installed between each movable rod and the fixed column, and a blocking member for closing the trough body is provided at the front end of each layer of trough body;

[0007] An elastic pusher is installed on the blocking member, and the elastic pusher is slidably arranged on slot two in the front-rear direction. A locking assembly for locking the elastic pusher is also installed on one side of each elastic pusher. The locking assembly is installed on slot two near one end of slot one. When the raw materials on the screen accumulate to one end near slot one, the locking assembly unlocks the elastic pusher.

[0008] The effect is that by tilting the second trough, the sizes of the multiple screens are smaller than those of the upper and lower three layers, and the probability of screen blockage when screening the material will be reduced. By tilting the screen to the right, after the material is screened, the large particles of material will gather to the right under the vibration of the feed trough. When the material on the screen gathers to a certain amount, the locking assembly is triggered under the action of the gravity of the material, and then the elastic pusher is unlocked, and the material pushes the blocking member to move. At this time, the material falls from the trough body. After the material falls, the blocking plate is reset under the action of the elastic pusher and the material is blocked in the trough body again. The material in the trough body falls intermittently and continuously, and the crusher matched with the vibrating feeder can start when the material falls, thereby saving energy consumption, and at the same time using the gravity of the material itself to make the material fall from the trough body, avoiding the vibration of the vibrating feeder affecting the service life of the power part when the power part is set on the blocking part.

[0009] Preferably, the feed trough is tilted downward from front to back as a whole, with an inclination angle of 10-25 degrees, and the inclination angle of trough two is between 5-15 degrees; by tilting the feed trough downward from front to back, the material can move downward from the feed trough when the feed trough vibrates, and by tilting trough two, large particles of material can move to the right when the feed trough vibrates.

[0010] Preferably, two screens are provided on the second trough, and the two screens divide the second trough into three layers of upper and lower trough bodies. The diameter of the material screened by the upper screen is larger than the diameter of the material screened by the lower screen; the gap between the screens allowing the material to pass through gradually decreases from top to bottom, the material particles falling in the lowest trough body are the smallest, the material particles falling in the middle trough body are of medium size, and the material particles falling in the highest trough body are the coarsest. Under the vibration of the vibrating feeder, the large particles of material move upward and the small particles of material move downward.

[0011] Preferably, a limit block is fixedly provided at the bottom of the movable rod, a limit slot is provided on the fixed column, the limit block is sliding left and right in the limit slot, and the elastic member is a spring installed between the limit block and the limit slot; when the screen is screening the material, once an irregularly shaped stone is encountered and it happens to be stuck in the space between the two movable rods, the stone will gradually accumulate and block the gap between the movable rods, resulting in a decrease in screening efficiency or even complete interruption, and an elastic member is installed between the movable rod and the fixed column. When the stone is stuck between the movable rods, the feed trough will drive the movable rod to vibrate together during the vibration process, so that the gap between the two adjacent movable rods will produce dynamic changes, thereby prompting the stone stuck between the movable rods to loosen and eventually fall under the action of vibration, which can effectively prevent the stone from being stuck between the movable rods for a long time and ensure the smooth progress of the screening process.

[0012] Preferably, the blocking member is a blocking plate, which extends from the left side to the right side of the trough body to block the material in the trough body, and a through hole is provided on the blocking plate; when the blocking plate completely closes the trough body, when the vibrating feeder starts to operate, the material in the trough body above will be affected by the vibration, and even those smaller particles will inevitably have a tendency to move toward the blocking plate. Under the effective blocking effect of the blocking plate, this part of the fine material cannot continue to move forward and is retained in the trough body. In order to solve this problem, through holes are specially provided, through which this part of the blocked material can fall smoothly from the through holes, thereby ensuring the smooth flow of the material and the normal operation of the system.

[0013] Preferably, there is a gap between the lowest baffle and the right space of the corresponding trough body, and the gap can allow the material in the right space corresponding to the trough body to fall down; in the process of material screening, when the material is put onto the upper screen, those materials with relatively small particle size will pass through the fine screening effect of the screen, smoothly pass through the pores of the screen, and finally fall into the trough body located below. The material accumulated in the right space of the trough body will not cause any interference or obstruction to the normal movement of the subsequent blocking parts. If this part of the material remains in the trough body for a long time, it will inevitably increase the overall weight of the feed trough, which will have a negative impact on the operating efficiency of the vibrating feeder, resulting in reduced energy efficiency during operation. By setting an appropriate gap between the baffle and the trough body, the material in the right space of the trough body can fall smoothly, thereby improving the energy efficiency of the vibrating feeder during operation and ensuring the efficient operation of the entire screening system.

[0014] Preferably, the elastic pushing member includes a sliding rod and a tension spring, one end of the sliding rod is fixedly arranged on the blocking member, and the other end extends into the groove one, a slide groove is provided in the groove one, one end of the tension spring is connected to the inner wall of the slide groove, and the other end is connected to the sliding rod; when the material in the groove body accumulates to a large amount, under the continuous action of the material's own gravity, it will gradually push the tension spring to stretch and deform, and as the tension spring stretches, the material pushes the blocking plate to move, and a gap is formed between the blocking plate and the groove two, and the material falls from the groove body. When the material in the groove body gradually decreases and finally falls, the blocking plate is Without the thrust exerted by the material, it will stop moving. At this time, the tension spring relies on its own elasticity to reset, driving the blocking plate back to its original position, tightly blocking the material in the trough again, so that new material can begin to accumulate in the trough again. The discharge process of the material in the trough is intermittent, that is, only when the material in the trough accumulates to a certain level will it be released once. At the moment of this material release, the crusher coordinated with the vibrating feeder starts to efficiently crush the material released from the trough, thereby improving the crushing efficiency of the crusher.

[0015] Preferably, the locking assembly includes a card block, a card slot, an inclined surface and an elastic connecting plate, the card block is fixedly arranged on the sliding rod, the elastic connecting plate is elastically rotatably arranged on the screen, the card slot is installed at the end of the elastic connecting plate, and the card block is provided with an inclined surface on the side close to the slot one, and the card block cooperates with the card slot; when the material falls into the slot two, after the material falls on the lowermost screen, under the screening effect of the screen, part of the material will pass through the screen and fall to the bottom, while the material with larger particles will remain on the screen. This part of the material contains medium and large particles. Since the screen is set at an angle, under the vibration effect of the vibrating feeder , materials with larger particles will gradually move upward. When the medium-sized particles accumulate on the screen to a certain amount, the large particles will move to the right to the upper screen. As the materials continue to accumulate, the materials in slot two will gradually gather towards slot one. When the materials in slot two accumulate to a certain extent, the materials will fall on the elastic connecting plate and cause the elastic connecting plate to rotate. The rotation of the elastic connecting plate causes the card slot to disengage from the card block. At this time, the material pushes the blocking plate to move, and the material falls from the slot body. The card block is close to slot one and is provided with an inclined surface. When the material is released, the card block will reset under the tension of the torsion spring.

[0016] Preferably, the elastic connecting plate includes a rotating plate rotatably arranged on the screen, and a torsion spring is installed between the rotating plate and the screen, one end of the torsion spring is connected to the rotating plate, and the other end is connected to the screen; when the material gradually accumulates to a certain amount and piles up on the rotating plate, the rotating plate begins to rotate due to the continuous action of the material's own gravity. As the rotating plate rotates, the card slot and the card block gradually disengage from contact, and the locking assembly unlocks the elastic pusher from the locked state, and the elastic pusher pushes the blocking member to slide. This sliding action eventually causes the material in the trough body to lose its obstruction, thereby falling smoothly from the trough body, completing the material discharge process.

[0017] Preferably, the blocking member is provided with an electric telescopic rod, which drives the blocking member to slide in the front-rear direction.

[0018] By adopting the above technical solution, the beneficial effects of the present invention are:

[0019] 1. The material is first put into the first trough of the vibrating feeder, and then the vibrating feeder starts the vibration function. This process ensures that the material can be evenly scattered on the different screens. The screens are specially installed at an angle so that during the screening process, when the material accumulated on the lower screen reaches a certain amount, the continuous vibration of the feed trough will cause the larger particles of material to gradually move upward and gather. When these materials gather to a sufficient amount, they will smoothly cross the screen and further gather to the right, thus achieving effective separation of materials of different particle sizes on their corresponding screens. The length of these screens is shorter than that of traditional multi-layer screens stacked on top of each other, which not only reduces the risk of screen blockage, but also makes cleaning easier and faster even if blockage occurs;

[0020] 2. By setting up multiple movable rods in the front and rear directions as screens and elastically connecting these movable rods to fixed columns, when material with a diameter roughly equal to the gap between the movable rods is stuck, the movable rods can move slightly, allowing the material to smoothly pass through the gap between the two rods and fall down, effectively avoiding the problem of material being stuck between the two movable rods. When the blocking member opens the trough body, this design also ensures that the material can be discharged smoothly from the trough body;

[0021] 3. When the material on the screen accumulates to a certain level, the material will further fall onto the elastic connecting plate. Under the action of the gravity of the material, the elastic connecting plate will deflect downward, causing the card slot and the card block to break contact. The material then pushes the blocking plate to move, allowing the material to fall smoothly from the gap between the blocking plate and slot two. This design avoids setting a power part directly on the blocking part, because the continuous vibration of the feed chute may shorten the service life of the power part. The material on the screen accumulates to a certain amount and then is released. After the material is released, the crusher that cooperates with the vibrating feeder is restarted to save energy consumption of the crusher. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic structural diagram of trough 1 and trough 2 of the feed trough of the present invention.

[0024] Figure 3 It is a schematic structural diagram of the blocking member and the second groove of the present invention.

[0025] Figure 4 Schematic diagram of the structure of the elastic pusher of the present invention.

[0026] Figure 5 It is a structural schematic diagram of the locking assembly of the present invention.

[0027] Figure 6 It is a schematic structural diagram of the screen of the present invention.

[0028] Reference numerals:

[0029] 1. Frame; 2. Vibrator; 3. Feed trough; 31. Slot 1; 32. Slot 2; 33. Screen; 331. Fixed column; 332. Movable rod; 333. Elastic member; 334. Limit block; 335. Limit slot; 34. Slot body; 341. Left space; 342. Right space; 35. Partition; 4. Blocking member; 41. Blocking plate; 42. Through hole; 5. Elastic pushing member; 51. Sliding rod; 52. Tension spring; 53. Slide slot; 6. Locking assembly; 61. Block; 62. Slot; 63. Inclined surface; 64. Elastic connecting plate; 641. Rotating plate; 642. Torsion spring. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0031] like Figures 1-6 As shown, a vibrating feeder includes a frame 1, a vibrator 2, a feed trough 3, a screen 33 and a blocking member 4; the vibrator 2 and the feed trough 3 are both installed on the frame 1, the vibrator 2 is used to vibrate the feed trough 3 and thus convey the material, the screen 33 provided on the feed trough 3 is used to screen the material, the screened material is blocked by the blocking member 4, and is released when the screened material accumulates to a certain amount.

[0032] The feed trough 3 is tilted downward from front to back, with an inclination angle of 10-25 degrees. The feed trough 3 includes a first trough 31 and a second trough 32. The second trough 32 is arranged below the first trough 31 and connected to the first trough 31. The second trough 32 is tilted from left to right, with an inclination angle of 5-15 degrees. When feeding, the material first falls on the first trough 31. After being dispersed on the first trough 31, the material evenly falls on the second trough 32. Since at least one screen 33 is provided on the second trough 32, The present invention is described by arranging two screens 33 on the second trough 32. When the screens 33 are arranged at an angle, the two screens 33 are arranged to separate the second trough 32 into three layers of trough bodies 34, and when the material enters the second trough 32 from the first trough 31, it can fall evenly into the three trough bodies 34. Due to the arrangement of the screens 33, the gap between the screens 33 and the material is gradually reduced from top to bottom. The smallest particles fall into the bottom trough body 34, and the particles with a diameter of less than 2 cm fall into the middle trough body 34. The material with a diameter of 2-5 cm is placed in the uppermost trough 34. The material with the largest particles is placed in the uppermost trough 34. The material with a diameter of more than 5 cm is placed in the uppermost trough 34. In order to ensure that the large particles can move to the right, a partition 35 is provided at the lower left side of the screen 33 to divide the trough 34 below the screen 33 into a left space 341 and a right space 342. When the material falls into the lowermost trough 34, the uppermost trough 34 only contains the left space 341. The three left spaces 341 are arranged in a stepped manner from left to right. Under the vibration of the dynamic feeder, large particles of material move upward and small particles of material move downward. When the small particles of material fill the left space 341 of the trough body 34, since the second trough 32 is tilted to the right, the largest particles of material gradually move to the left to the uppermost trough body 34, the medium particles of material gradually move to the middle trough body 34, and the smallest particles of material gradually move to the lowermost trough body 34. The materials of different particles are then transported to the crusher for crushing to improve the crushing efficiency.

[0033] The screen 33 includes a fixed column 331 and a movable rod 332. The fixed column 331 is provided with two front and rear ones, and the movable rod 332 is provided between the two fixed columns 331. There are multiple movable rods 332 arranged from left to right. Taking the setting of two screens 33 as an example, the distance between the movable rods 332 of the upper screen 33 is about 5 cm, and the distance between the movable rods 332 of the lower screen 33 is about 2 cm. When the material falls from the trough 1 31, the material falls on the screen 33 for screening first. When the material moves from left to right, small particles of material may not have fallen from the lowest trough 34 yet. The small particles of material move to the lower screen 33. At this time, the screen 33 can screen the small particles of material and make the material fall into the lowest trough 34. At the same time, when screening the material, due to the different particle diameters, The material falls evenly on different screens 33, and large particles of material will also fall on the lower screen 33. When the feed trough 3 vibrates, the large particles of material move to the right and eventually move toward the right side to the upper screen 33, and finally, the small particles of material fall into the lowest trough body 34, the medium particles of material fall into the middle trough body 34, and the large particles of material fall into the upper trough body 34. Taking the lowest screen 33 as an example, when the diameter of the material is basically equal to 2 cm, when the material is irregular, there may be particles in the other directions of the material that are slightly larger than 2 cm. At this time, it is difficult for the material to pass through the screen 33. When the vibrating feeder is running, under the action of vibration, the gap between the two movable rods 332 will increase slightly and be larger than the diameter of the material. At this time, the material can fall from between the two movable rods 332.

[0034] An elastic member 333 is installed between each movable rod 332 and the fixed column 331, a limit block 334 is fixedly provided at the bottom of the movable rod 332, a limit slot 335 is provided on the fixed column 331, the limit block 334 is slid left and right in the limit slot 335, and a spring is installed between the limit block 334 and the limit slot 335; when the screen 33 screens the material, when irregular stones are stuck between the two movable rods 332, the gap between the movable rods 332 will gradually be blocked. By installing the elastic member 333 between the movable rod 332 and the fixed column 331, when a stone is stuck between the movable rods 332, the vibration of the feed chute 3 will cause the movable rod 332 to vibrate, and the gap between the two adjacent movable rods 332 will change, thereby causing the stone between the movable rods 332 to fall, thereby preventing the stone from being stuck between the movable rods 332.

[0035] After the stones are screened by the screen 33, in order to prevent the screened stones from falling directly from the screen 33, the front end of each layer of the trough 34 is slidably provided with a blocking member 4 for closing the trough 34. When the amount of material in the trough 34 reaches a certain amount, the blocking member 4 no longer blocks the material in the trough 34, and the material is discharged from the trough 34 under the vibration of the feed trough 3. At the same time, when the feed trough 3 is discharging material, the crusher coordinated with the vibrating feeder is restarted, which can avoid the crushing efficiency being low when the crusher is always in the started state.

[0036] The blocking member 4 is a blocking plate 41, which extends from the left side to the right side of the trough body 34 to block the material in the trough body 34. In other embodiments of the present invention, a through hole 42 is provided on the blocking plate 41. When the blocking plate 41 blocks the trough body 34 to prevent the material in the trough body 34 from falling, when the vibrating feeder is running, the material in the upper trough body 34 will also have smaller particles that tend to move toward the blocking plate 41. This part of the material remains in the trough body 34 under the obstruction of the blocking plate 41. By providing the through hole 42, this part of the material can fall from the through hole 42.

[0037] There is a gap between the bottom blocking plate 41 and the right space 342 of the corresponding trough body 34. The gap can allow small particles of material in the trough body 34 to fall down. The diameter of the small particles passing through the gap is basically the same as that of the small particles passing through the bottom screen 33. When the material is screened, when the material falls on the upper screen 33, the material with smaller particles falls into the bottom trough body 34 after being screened by the screen 33. The material in the right space 342 corresponding to the trough body 34 does not affect the movement of the subsequent blocking member 4. This part of the material remaining in the trough body 34 will increase the overall weight of the feed trough 3, and the energy efficiency of the vibrating feeder during operation will be reduced. By setting a gap between the blocking plate 41 and the trough body 34, the material that does not need to be crushed can fall from the right space 342 of the trough body 34, thereby improving the energy efficiency of the vibrating feeder during operation.

[0038] When the material in the trough body 34 is completely removed, the blocking member 4 is used to block the material in the trough body 34. When the material in the trough body 34 is completely removed, the blocking member 4 is used to block the material in the trough body 34. When the material in the trough body 34 is completely removed, the blocking member 4 is used to block the material in the trough body 34. When the material in the trough body 34 is completely removed, the blocking member 4 is used to block the material in the trough body 34.

[0039] The elastic pusher 5 comprises a sliding rod 51 and a tension spring 52. One end of the sliding rod 51 is fixed to the blocking plate 41, while the other end extends into the first slot 31. A chute 53 is defined within the first slot 31. One end of the tension spring 52 is connected to the inner wall of the chute 53, while the other end is connected to the sliding rod 51. When the trough 34 is filled with material, the weight of the material pushes the sliding rod 51, causing the tension spring 52 to extend. This creates a gap between the blocking plate 41 and the second slot 32, allowing the material to fall through. Once the material in the trough 34 has fallen through, the blocking plate 41 loses its thrust. The tension spring 52 then resets and pulls the sliding rod 51, causing the blocking plate 41 to re-block the material, causing it to re-accumulate within the trough 34. In other words, the release of material from the trough 34 is intermittent, releasing it when the material accumulates to a certain level. At this point, the crusher, coupled with the vibrating feeder, is activated again to crush the material released from the trough 34. Since the material in the bottom trough 34 is relatively small in diameter, when crushing rocks, the material at the bottom is basically fine gravel and does not need to be crushed. The material in the middle layer of the trough 34 is basically 2-5 cm, which is the required material particle size. The material at the top has a larger particle size and is the material that needs to be crushed. When the amount of material at the top is relatively small, it will be a waste of energy if the crusher is always running. When the material in the top trough 34 accumulates to a certain amount, it is released and the crusher is started at the same time. At this time, the material can be screened and crushed while also saving the energy consumed by the crusher.

[0040] The locking assembly 6 comprises a block 61, a slot 62, an inclined surface 63, and an elastic connecting plate 64. The block 61 is fixed to the sliding rod 51, and the elastic connecting plate 64 is resiliently rotatable on the screen 33. The block 61 has an inclined surface 63 on the side closest to the first slot 31, and the block 61 engages with the slot 62. The present invention will be explained using the process of material accumulation on the bottom screen 33 as material falls into the second slot 32. When material falls onto the bottom screen 33, it is screened by the screen 33, with some falling below it, while larger particles remain on the screen 33 (this portion includes both medium and large particle sizes). Because the screen 33 is tilted, the vibration of the vibrating feeder causes the larger particles to move upward. When a certain amount of medium-sized material accumulates on the screen 33, the larger particles move to the right onto the upper screen 33. As material continues to accumulate, it gradually gathers in the second trough 32 toward the first trough 31. When a sufficient amount of material accumulates in the second trough 32, it falls onto the elastic connecting plate 64, causing it to rotate. This rotation disengages the slot 62 from the block 61. The material then pushes the blocking plate 41 to move, allowing the material to fall out of the trough 34. A slope 63 is provided on the side of the block 61 closest to the first trough 31. Once the material is released, the block 61 returns to its original position under the action of the elastic connecting plate 64.

[0041] The elastic connecting plate 64 includes a rotating plate 641 rotatably arranged on the screen 33, and a torsion spring 642 is installed between the rotating plate 641 and the screen 33, one end of the torsion spring 642 is connected to the rotating plate 641, and the other end is connected to the screen 33; when the material accumulates to a certain amount and piles up on the rotating plate 641, the gravity of the material pushes the rotating plate 641 to rotate, thereby causing the card slot 62 to disengage from the card block 61. At this time, the locking assembly 6 can unlock the elastic pushing member 5, and the material can push the blocking member 4 to slide, thereby causing the material to fall from the trough body 34.

[0042] In other embodiments of the present invention, an electric telescopic rod can be directly provided on the blocking member 4, and the electric telescopic rod drives the blocking member 4 to slide in the front-to-back direction, so that the material slides out from the gap between the blocking member 4 and the second groove 32. At this time, the quality requirements of the electric telescopic rod are relatively high, and the vibration of the feed trough 3 may shorten the service life of the electric telescopic rod.

[0043] The working principle of the present invention is as follows: the material first falls on the trough 1 31 of the vibrating feeder, and the vibrating feeder vibrates so that the material can evenly fall on different screens 33, and the material is screened by the screen 33, and the screen 33 is set tilted. When there is more material on the lower screen 33, the large particles of material are gathered upward under the vibration of the feed trough 3, and when the material gathers to a certain amount, it will pass over the screen 33 and gather to the right, so that materials of different particles are gathered on different screens 33. The length of the screen 33 is shorter than that of the multi-layer screens stacked up and down, and it is not easy to be blocked and it is easier to clean after being blocked; by setting a plurality of movable rods 332 in the front and rear directions as the screen 33 and making the movable rods 332 elastically connected to the fixed columns 331, when the movable rods 332 are stuck with materials with a diameter substantially the same as the gap between the movable rods 332, the movable rods 332 can move slightly to allow the material to pass through the two sides. The material then pushes the blocking plate 41 to move and causes the material to fall from the gap between the blocking plate 41 and the slot 2 32, thereby avoiding shortening the service life of the power part due to the vibration of the feed chute 3 when a power part is set on the blocking member 4; the materials on different screens 33 can be classified and used after falling, and the materials on the middle screen 33 and the top screen 33 are released after they accumulate to a certain amount, and the crusher corresponding to the screen 33 is restarted when the screen 33 releases the material to save energy consumption of the crusher.

[0044] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A vibrating feeder, comprising a frame, a vibrator and a feed chute, characterized in that: The feed trough includes trough one and trough two, trough two is connected to the bottom of trough one, trough two is tilted to the right, and at least one layer of screen parallel to the bottom of trough two is arranged from bottom to top in trough two, and the screen divides trough two into at least two layers of trough bodies, and a partition is arranged below the left side of the screen to divide the trough body below it into a left space and a right space. The screen includes a fixed column arranged parallel to trough two and a plurality of movable rods extending in the front and rear directions, and an elastic member is installed between each movable rod and the fixed column. The front end of each layer of trough body is slidably provided with a blocking member for closing the trough body; An elastic pusher is mounted on the blocking member, and the elastic pusher is slidably mounted on the second slot in the front-rear direction. A locking assembly for locking the elastic pusher is mounted on one side of each elastic pusher. The locking assembly is mounted on one end of the second slot near the first slot. When the raw materials on the screen accumulate near the end of the first slot, the locking assembly unlocks the elastic pusher. The locking assembly includes a card block, a card slot, an inclined surface, and an elastic connecting plate. The card block is fixedly arranged on the sliding rod, and the elastic connecting plate is elastically rotatably arranged on the screen. The card slot is installed at the end of the elastic connecting plate. The card block is provided with an inclined surface on one side close to the slot, and the card block cooperates with the card slot. The elastic connecting plate includes a rotating plate rotatably arranged on the screen, a torsion spring is installed between the rotating plate and the screen, one end of the torsion spring is connected to the rotating plate, and the other end is connected to the screen.

2. The vibrating feeder according to claim 1, characterized in that The feed chute is tilted downward from front to back as a whole, with an inclination angle between 10-25 degrees, and the inclination angle of the second chute is between 5-15 degrees.

3. The vibrating feeder according to claim 1, characterized in that Two screens are provided on the second trough, which divide the second trough into three layers of trough bodies, the upper and lower layers. The diameter of the material screened by the upper screen is larger than the diameter of the material screened by the lower screen.

4. The vibrating feeder according to claim 1, characterized in that A limiting block is fixedly provided at the bottom of the movable rod, a limiting slot is provided on the fixed column, the limiting block is slidably arranged in the limiting slot left and right, and the elastic member is a spring installed between the limiting block and the limiting slot.

5. The vibrating feeder according to claim 3, characterized in that: The blocking member is a blocking plate, which extends from the left side to the right side of the tank body to block the material in the tank body, and a through hole is opened on the blocking plate.

6. The vibrating feeder according to claim 5, characterized in that: There is a gap between the bottom blocking plate and the right space of the corresponding trough body, and the gap can allow the material in the right space corresponding to the trough body to fall.

7. The vibrating feeder according to claim 1, characterized in that The elastic pushing member includes a sliding rod and a tension spring. One end of the sliding rod is fixedly set on the blocking member, and the other end of the sliding rod extends into groove one. A sliding groove is provided in groove one. One end of the tension spring is connected to the inner wall of the sliding groove, and the other end is connected to the sliding rod.

8. The vibrating feeder according to any one of claims 1 to 7, characterized in that: The blocking member is provided with an electric telescopic rod, which drives the blocking member to slide along the front-back direction.

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