Boric acid granule quantitative feeding device and method

Abstract

The present invention relates to the technical field of particle packaging, and specifically discloses a boric acid particle quantitative feeding device, including a casing and a feeding mechanism, the feeding mechanism including a feeding roller matched in the casing and a power assembly for driving the feeding roller to rotate, a plurality of quantitative holes are distributed on the peripheral wall of the feeding roller, one of the peripheral wall of the feeding roller and the inner wall of the casing is provided with a corrugated groove or a broken line groove surrounding the axis of the feeding roller, and the other is provided with a limiting member matched in the corrugated groove or the broken line groove, and the matching of the corrugated groove or the broken line groove and the limiting member enables the feeding roller to slide back and forth when rotating. The boric acid particle quantitative feeding device of the present invention continuously reduces the residual gap between the material particles in the quantitative hole through the vibration of the feeding roller, so that the material particles are full and substantial in the quantitative hole, and the uniformity and accuracy of each feeding are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of particle packaging, and in particular to a device and method for quantitatively dispensing boric acid particles. Background Art

[0002] Boric acid granules are a common boron compound that can be used as external bactericides, disinfectants, astringents and preservatives. They have inhibitory effects on a variety of bacteria and molds. In addition to being widely used in the fields of antiseptics, disinfectants, and medicine, they are also widely used in glass manufacturing, enamel, ceramics, metallurgy and other industrial sectors. The quantitative feeding of boric acid granules usually involves a series of precise operations and equipment to ensure the accuracy and efficiency of feeding.

[0003] The Chinese patent document with the authorization announcement number CN115556973B discloses a quantitative conveying device for the production of grass-protecting particles, including a frame, a conveying shell and a quantitative unloading part. The conveying shell is fixed on the frame and a feed hopper is fixed to the top outer wall by bolts. The quantitative unloading part includes a unloading roller rotatably arranged in the conveying shell and a driving mechanism for driving the unloading roller to rotate. The peripheral wall of the unloading roller is provided with a material storage groove, and the raw material particles can be put into the conveying shell from the feed hopper and then fall into the material storage groove. The driving mechanism controls the rotation of the unloading roller, so that the particles in the material storage groove are unloaded by gravity. Since the volume of the material storage groove is constant, the volume and mass of the raw materials transported at a single time are constant, thereby achieving the effect of quantitative unloading.

[0004] However, when unloading, due to the mechanical properties of the raw material particles, arching may occur, or there may be excess gaps between the raw material particles. This makes it impossible for the raw material particles in the material trough to be filled, and the quality of the raw material particles delivered from the material trough each time cannot be guaranteed to be equal, reducing the accuracy of quantitative unloading. Summary of the invention

[0005] The present invention provides a device and method for quantitatively dispensing boric acid particles, aiming to solve the problem of low accuracy of quantitative dispensing in the related art.

[0006] The boric acid particle quantitative feeding device of the present invention comprises a casing and a feeding mechanism, wherein the feeding mechanism comprises a feeding roller matched in the casing and a power assembly for driving the feeding roller to rotate, a plurality of quantitative holes are distributed on the peripheral wall of the feeding roller, one of the peripheral wall of the feeding roller and the inner wall of the casing is provided with a corrugated groove or a fold line groove surrounding the axis of the feeding roller, and the other is provided with a limiting piece matched in the corrugated groove or the fold line groove, and the matching of the corrugated groove or the fold line groove with the limiting piece enables the feeding roller to slide back and forth when rotating.

[0007] The effect is that the reciprocating sliding of the feeding roller can induce vibration, so that when the metering hole receives the material particles, the arch of the material particles in the metering hole can be broken, and the residual gaps between the material particles can be continuously reduced, so that the material particles are filled in the metering hole, thereby ensuring that the quality of the material particles loaded in the metering hole each time is constant, thereby ensuring the uniformity and accuracy of each feeding.

[0008] Preferably, the quantitative feeding device of boric acid particles also includes a material dispensing mechanism, which includes a material dispensing rod and a material dispensing member, the housing has an upward inlet and a downward outlet, the material dispensing rod is arranged at the inlet and can rotate, and the power assembly can drive the material dispensing rod to rotate; the material dispensing member is arranged in multiple numbers at intervals along the axial direction of the material dispensing rod, and the material dispensing member includes two spiral paddles arranged in pairs about the axis of the material dispensing rod, each spiral paddle is arranged half a circle around the axis of the material dispensing rod and is connected to the material dispensing rod, and when the material dispensing rod rotates, the two spiral paddles spread the material particles to both sides respectively.

[0009] The effect is that the material particles in the middle area of ​​the inlet are evenly spread to both sides, thereby improving the uniformity of the distribution of the material particles at the inlet, thereby ensuring the accuracy of material feeding.

[0010] Preferably, one of the material ejector rod and the housing is provided with a cam groove, and the other is provided with a limiting member that fits in the cam groove. The cooperation between the cam groove and the limiting member enables the material ejector rod to slide back and forth when rotating.

[0011] The effect is that the spiral paddle can slide back and forth with the material paddle rod, thereby deepening the spreading effect on the material particles and making the distribution of the material particles more uniform.

[0012] Preferably, the power assembly includes an incomplete gear and a complete gear, the incomplete gear is rotatably mounted on one side of the casing, one end of the material removal rod passes through the casing and is slidably inserted into the incomplete gear; a motor is mounted on the casing and is transmission-connected to the incomplete gear to drive the incomplete gear to rotate; the complete gear is located below the incomplete gear and is rotatably mounted on the casing, the complete gear is coaxially slidably connected to the unloading roller, and when the incomplete gear rotates, it can engage with the complete gear to drive it to rotate.

[0013] Preferably, the plurality of metering holes are divided into a plurality of hole groups arranged along the circumference of the unloading roller, each hole group comprises a plurality of metering holes arranged at intervals along the axial direction of the unloading roller, and when the unloading roller rotates, the plurality of hole groups can receive material particles in sequence.

[0014] Preferably, the quantitative feeding device of boric acid particles also includes a pushing mechanism, the pushing mechanism includes a pushing unit corresponding to the hole group one by one, the pushing unit includes a sliding cavity, a sliding part and a pushing part, the sliding cavity is opened on the feeding roller and is located on the side of the hole group facing the axis of the feeding roller, the sliding part slides in the sliding cavity along the radial direction of the feeding roller and is connected to the feeding roller through a reset part, there are multiple pushing parts and they slide in multiple quantitative holes of the hole group respectively, and each pushing part is connected to the sliding part; an air guide structure is also provided between the feeding roller and the casing to allow outside air to enter the sliding cavity and force the sliding part to slide outward.

[0015] The effect is that when the sliding member slides toward the outer side of the lower material roller, the pushing member can push out all the material particles in the quantitative hole, thereby reducing or avoiding the residual material particles in the quantitative hole and realizing the material cleaning of the quantitative hole.

[0016] Preferably, the air guide structure includes an air containing cavity formed between one of the end faces of the unloading roller and the side wall of the casing, an air inlet opened on the casing and connected to the air containing cavity, a one-way air guide installed on the air inlet for guiding air into the air containing cavity, and an air guide column, one end of the air guide column extends into the air containing cavity and is rotatably connected to the unloading roller, and the other end is slidably assembled on the casing, the air guide column is provided with an air channel connected to the air containing cavity and a non-return air guide component installed in the air channel; the unloading roller is provided with intermediate air cavities corresponding to the sliding cavities one by one, the intermediate air cavities are connected to the corresponding sliding cavities, and grooves are provided on the side walls of the intermediate air cavities adjacent to the air guide column, and when the unloading roller rotates, the grooves of each intermediate air cavity are connected to the air channel in turn.

[0017] The effect is that the reciprocating sliding of the unloading roller can continuously draw the outside air into the sliding cavity, so that the air pressure acting on the sliding part is greater, providing thrust for the sliding part to slide outward.

[0018] Preferably, the quantitative feeding device of boric acid particles also includes a locking mechanism, wherein the locking mechanism includes a locking piece and an unlocking plate, the sliding piece is provided with a locking groove, the locking piece and the locking groove correspond to each other one by one and are elastically slidably inserted on the feeding roller, and one end is engaged in the corresponding locking groove, and the other end protrudes from the outside of the casing to form a convex edge; the end of the feeding rod facing away from the incomplete gear passes through the outside of the casing and forms a ring edge, one end of the unlocking plate is sleeved on the feeding rod and abuts against the ring edge, the middle part of the unlocking plate is connected to the casing through an elastic piece, the other end of the unlocking plate forms a circular space, the other end of the locking piece and the convex edge penetrate into the circular space, and the unlocking plate forms an arc-shaped platform at the bottom of the circular space, and when the arc-shaped platform slides toward the outside of the casing, it can hook the convex edge below to make the locking piece escape from the locking groove.

[0019] The effect is that when the metering hole is turned to the lower position, the unlocking plate can unlock the locking part corresponding to the metering hole by relying on the reciprocating sliding of the material pushing rod, so that the sliding part slides outward under the action of air pressure, thereby realizing the clearing of the metering hole by the pushing part.

[0020] Preferably, the casing has an outward protrusion, the material removing rod passes through the protrusion, the protrusion is provided with an annular air chamber coaxial with the material removing rod, and the material removing rod has an annular portion that cooperates with the inside of the annular air chamber; the inlet of the casing is provided with a material guide frame extending outwardly at an angle, the bottom of the material guide frame is paved with a material guide inner plate, one end of the material guide inner plate is hinged to the material guide frame, and an airbag structure is padded between the other end and the material guide frame, and the airbag structure is connected to the annular air chamber through an air pipe.

[0021] The boric acid granule quantitative feeding method of the present invention adopts the boric acid granule quantitative feeding device mentioned above, and comprises the following steps:

[0022] Pour the material particles into the casing, and the quantitative hole at the top receives the material particles;

[0023] The power assembly drives the unloading roller to rotate. Under the cooperation of the corrugated groove or the folding groove and the limiting piece, the unloading roller slides back and forth and generates vibration, thereby reducing the residual gap between the material particles and making the material particles fill the quantitative hole;

[0024] When the metering hole rotates downward, the material particles fall down and are discharged from the casing.

[0025] The effect is that the accuracy of material unloading is ensured through the vibration of the unloading roller.

[0026] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0027] The present invention enables the discharge roller to vibrate through the cooperation of the corrugated groove or the folded line groove with the limiting piece, so that when the quantitative hole receives the material particles, the arch of the material particles in the quantitative hole can be broken, and the residual gaps between the material particles can be continuously reduced, so that the material particles are filled in the quantitative hole, thereby ensuring that the quality of the material particles loaded in the quantitative hole each time is constant, thereby ensuring the uniformity and accuracy of each discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the appearance of the boric acid particle quantitative feeding device of the present invention.

[0029] Figure 2 It is another schematic diagram of the appearance of the boric acid particle quantitative feeding device of the present invention.

[0030] Figure 3 It is a cross-sectional schematic diagram of the boric acid particle quantitative feeding device of the present invention.

[0031] Figure 4 The present invention Figure 3 A magnified schematic diagram of center A.

[0032] Figure 5 The present invention Figure 3 A magnified schematic diagram of point B in the middle.

[0033] Figure 6 The present invention Figure 3 Enlarged schematic diagram of point C in the middle.

[0034] Figure 7 It is an exploded schematic diagram of the material removing rod, the material discharging roller and the air guide column of the present invention.

[0035] Figure 8 It is a schematic structural diagram of the limiting member to the restricting member portion on the casing of the present invention.

[0036] Fig. 9 It is a schematic structural diagram of the material guide inner plate to the casing portion of the present invention.

[0037] Reference numerals:

[0038] 1. housing; 11. inlet; 111. material guide frame; 112. material guide inner plate; 113. airbag structure; 12. outlet; 13. limiting member; 14. limiting member; 15. annular air chamber; 151. air pipe;

[0039] 2. Feeding roller; 21. Hole group; 211. Dosing hole; 22. Folding groove; 23. Middle axis; 24. Air pressure chamber; 25. External hole;

[0040] 3. Power assembly; 31. Incomplete gear; 32. Complete gear; 321. Ring; 33. Motor;

[0041] 4. a material-pickling rod; 41. a spiral paddle; 42. a cam groove; 43. an annular portion; 44. an annular edge;

[0042] 5. Pushing unit; 51. Sliding member; 511. Resetting member; 512. Inner hole; 52. Pushing member;

[0043] 61. air-containing cavity; 62. one-way air guide; 63. air guide column; 631. air channel; 64. middle air cavity; 641. channel;

[0044] 71, locking member; 711, push spring; 712, convex edge; 72, unlocking plate; 721, elastic member; 722, arc-shaped platform. DETAILED DESCRIPTION

[0045] 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.

[0046] Combine the following Figures 1 to 9 The boric acid granule quantitative feeding device of the present invention is described.

[0047] like Figures 1 to 8 As shown, the boric acid granule quantitative feeding device of the present invention comprises a housing 1, a feeding mechanism, a feeding mechanism, a feeding mechanism and a locking mechanism.

[0048] The upper end of the casing 1 has an upward inlet 11 and the lower end has a downward outlet 12. Material particles enter the casing 1 through the inlet 11 and flow out through the outlet 12. In this embodiment, the material particles are boric acid particles.

[0049] The unloading mechanism includes an unloading roller 2 and a power assembly 3. The unloading roller 2 is fitted in the housing 1 along the left-right direction, and can rotate in the circumferential direction and move in the axial direction. The power assembly 3 is used to drive the unloading roller 2 to rotate. The circumferential wall of the unloading roller 2 is evenly distributed with a plurality of quantitative holes 211. Specifically, the plurality of quantitative holes 211 are divided into a plurality of hole groups 21 arranged at equal intervals along the circumference of the unloading roller 2. Each hole group 21 includes a plurality of quantitative holes 211 arranged at equal intervals along the axial direction of the unloading roller 2. When the unloading roller 2 rotates, the plurality of hole groups 21 can sequentially receive material particles, which is convenient for unloading the material particles in batches.

[0050] The peripheral wall of the unloading roller 2 is provided with a folding groove 22 which surrounds the axis of the unloading roller 2. The inner wall of the housing 1 is fixed with a limiting member 13 which fits in the folding groove 22. In this embodiment, the limiting member 13 can be a convex rod. When the unloading roller 2 rotates, the folding groove 22 is driven to rotate, and the limiting member 13 slides relatively in the folding groove 22. Since the limiting member 13 is fixed, the folding groove 22 can only move back and forth in the left and right directions to adapt to the convex rod, thereby driving the unloading roller 2 to slide back and forth, thereby causing the vibration of the unloading roller 2. In this way, when the hole group 21 receives the material particles, it can break the arch of the material particles in the quantitative hole 211, and continuously reduce the residual gap between the material particles, so that the material particles are full in the quantitative hole 211, thereby ensuring that the quality of the material particles loaded in each hole group 21 is constant, thereby ensuring the uniformity and accuracy of each unloading.

[0051] When the material enters the inlet 11 of the housing 1, it usually moves toward the middle under human influence, so that more material is distributed in the middle and less material is distributed on both sides, and the material particles are unevenly arranged at the inlet 11, and the material particles entering each quantitative hole 211 of the hole group 21 are also uneven, affecting the accuracy of material feeding. To solve this problem, the material-moving mechanism includes a material-moving rod 4 and a material-distributing member.

[0052] Continue to refer Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8 The material-dispensing rod 4 is arranged at the inlet 11 of the housing 1 along the left-right direction, and can rotate in the circumferential direction and move in the axial direction. The power assembly 3 can drive the material-dispensing rod 4 to rotate. A plurality of material-dispensing parts are arranged at equal intervals along the axial direction of the material-dispensing rod 4. The material-dispensing parts include two spiral paddles 41 arranged in pairs about the axis of the material-dispensing rod 4. Each spiral paddle 41 is arranged half a circle around the axis of the material-dispensing rod 4 and connected to the material-dispensing rod 4 through a connecting piece. When the material-dispensing rod 4 rotates, the spiral paddles 41 on both sides are driven to rotate. The spiral paddles 41 on both sides spread the material particles in the left and right directions separately, so that the material particles in the middle are evenly spread to the left and right sides, thereby improving the uniformity of the distribution of the material particles at the inlet 11, and then ensuring the accuracy of material dispensing.

[0053] The outer peripheral surface of the material-dispensing rod 4 is provided with a cam groove 42 which is closed at both ends and is in a wave shape. A limiting member 14 which is matched with the cam groove 42 is fixed on the housing 1. The limiting member 14 has the same structure as the limiting member 13 mentioned above, and the cooperation between the limiting member 14 and the cam groove 42 is also substantially similar to the cooperation between the limiting member 13 and the folding groove 22. In short, when the material-dispensing rod 4 rotates, it slides back and forth in the left and right directions under the action of the cam groove 42 and the limiting member 14, and the spiral paddle 41 slides back and forth in the left and right directions with the material-dispensing rod 4, thereby deepening the spreading effect on the material particles and making the distribution of the material particles more uniform.

[0054] Continue to refer Figure 2 , Figure 3 , Figure 5 and Fig. 9 The housing 1 has an outward protrusion, through which the material-moving rod 4 passes, and the protrusion is provided with an annular air chamber 15 coaxial with the material-moving rod 4, and the material-moving rod 4 has an annular portion 43 fitted in the annular air chamber 15. The inlet 11 of the housing 1 is provided with a material guide frame 111 extending outward obliquely, and the bottom of the material guide frame 111 is paved with a material guide inner plate 112, one end of the material guide inner plate 112 is hinged to the material guide frame 111, and an air bag structure 113 is arranged between the other end and the material guide frame 111, and the air bag structure 113 is connected to the annular air chamber 15 through an air pipe 151. When the material moving rod 4 slides back and forth, it drives the annular portion 43 to slide back and forth. The annular portion 43 squeezes or sucks the air in the annular air chamber 15, so that the air in the annular air chamber 15 is filled into the airbag structure 113 or discharged from the airbag structure 113 through the air pipe 151, thereby realizing the expansion and contraction of the airbag structure 113. In this way, when the material particles enter the inlet 11 through the material guide inner plate 112, the material guide inner plate 112 can shake up and down with the expansion and contraction of the airbag structure 113, reducing the residue of material particles on the material guide inner plate 112, which not only reduces the cleaning burden of the material guide inner plate 112, but also reduces the waste of material particles. It is worth noting that the other end of the material guide inner plate 112 can be connected to the material guide frame 111 through a layer of plastic cloth, which can adapt to the shaking of the material guide inner plate 112 and prevent material particles from entering the area between the material guide inner plate 112 and the material guide frame 111 to hinder the movement of the material guide inner plate 112.

[0055] Continue to refer Figures 1 to 3The power assembly 3 includes an incomplete gear 31 and a complete gear 32. The incomplete gear 31 is rotatably mounted on the left side of the casing 1. One end of the material removal rod 4 passes through the casing 1 and is slidably arranged in the incomplete gear 31, so that when the incomplete gear 31 rotates, it can drive the material removal rod 4 to rotate, and the material removal rod 4 can slide freely in the left and right directions relative to the incomplete gear 31. A motor 33 is also installed on the front side of the casing 1. The motor 33 is connected to the incomplete gear 31 through a belt mechanism or a chain mechanism to drive the incomplete gear 31 to rotate. The complete gear 32 is located below the incomplete gear 31 and is rotatably mounted on the casing 1. The left end of the unloading roller 2 has a central axis portion 23 extending to the left side of the casing 1. A ring sleeve 321 is fixed on the complete gear 32. The central axis portion 23 is coaxial with the ring sleeve 321 and is slidably arranged in the ring sleeve 321. When the incomplete gear 31 rotates, it can intermittently mesh with the complete gear 32, thereby driving the complete gear 32 to rotate intermittently. The complete gear 32 drives the unloading roller 2 to rotate intermittently through the middle shaft 23, so that the hole group 21 can be stepped into the upper position and maintain a temporary stop posture at this position, which is convenient for stably receiving the material particles. It is worth noting that when the unloading roller 2 or the hole group 21 is temporarily stopped, it cannot vibrate. When the material particles are basically received, the unloading roller 2 rotates again and vibrates. At this time, the hole group 21 has not yet been transferred to the inner side of the housing 1, and is in an inclined upward posture. It can also receive the material particles of the inlet 11. The hole group 21 is affected by the vibration, which can make the internal material particles dense and make room for new space. The material particles of the inlet 11 flow into the new space of the hole group 21 until the hole group 21 is filled.

[0056] In other embodiments, the incomplete gear 31 can also be replaced by a complete gear, so that the complete gear can rotate continuously, thereby driving the unloading roller 2 to rotate continuously. By lowering the rotation speed of the unloading roller 2, the hole group 21 can also slowly pass through the upper position, which can also ensure sufficient feeding, but the work efficiency is reduced and the stability of feeding cannot be guaranteed.

[0057] When the hole group 21 rotates to the lower position along with the unloading roller 2, a part of the material particles in the hole group 21 flows out under the action of gravity and is discharged through the outlet 12. However, another part of the material particles will remain attached to the quantitative holes 211. In order to clear the quantitative holes 211, the pushing mechanism includes a pushing unit 5 corresponding to each of the hole groups 21.

[0058] Continue to refer Figure 3 and Figure 4The pusher unit 5 includes a sliding cavity, a sliding member 51 and a pushing member 52. The sliding cavity is opened on the unloading roller 2 and is located on the side of the hole group 21 facing the axis of the unloading roller 2. The sliding member 51 slides in the sliding cavity along the radial direction of the unloading roller 2 and is connected to the unloading roller 2 through the reset member 511. It is worth noting that the sliding member 51 slides in a sealed manner in the sliding cavity. The space on one side of the sliding cavity near the axis of the unloading roller 2 constitutes an air pressure cavity 24. The reset member 511 is located in the air pressure cavity 24. A tension spring can be directly used, and the number can be one, two, three, etc. There are multiple pushers 52 that are respectively slidably fitted in the multiple metering holes 211 of the hole group 21. Each pusher 52 is integrally arranged with the sliding member 51. It is worth noting that the pusher 52 is a columnar body, and its diameter is equal to the aperture of the metering hole 211. In this way, when the sliding member 51 slides toward the outside of the lower material roller 2, the pusher 52 can push out all the material particles in the metering hole 211, thereby reducing or avoiding the residue of material particles in the metering hole 211 and realizing the cleaning of the metering hole 211.

[0059] An air guide structure is also provided between the unloading roller 2 and the housing 1 to allow external air to enter the air pressure chamber 24 and press the sliding member 51 to slide outward.

[0060] The left end face of the unloading roller 2 is spaced from the left side wall of the casing 1, and the air guide structure includes an air cavity 61 formed between this end face and the left side wall of the casing 1, an air inlet opened on the casing 1 and connected to the air cavity 61, a one-way air guide member 62 installed at the air inlet for guiding air into the air cavity 61, and an air guide column 63. The one-way air guide member 62 can directly adopt a one-way valve. One end of the air guide column 63 extends into the air cavity 61 and is rotatably connected to the left end face of the unloading roller 2, and the other end is slidably assembled on the casing 1. The top of the air guide column 63 is provided with an air channel 631 connected to the air cavity 61 and a non-return air guide member installed in the air channel 631. The non-return air guide member can be a non-return valve, which is used for the air cavity 61 to intake air into the air channel 631. When the unloading roller 2 slides back and forth, the volume of the air chamber 61 will increase or decrease accordingly. When the volume of the air chamber 61 increases, a negative pressure is formed inside, and the outside air is drawn into the air chamber 61 through the one-way air guide 62. The one-way air guide 62 is used to prevent the air in the air chamber 61 from flowing back to the outside; when the volume of the air chamber 61 decreases, a positive pressure is formed inside, and the air in the air chamber 61 is pressed into the air duct 631 through the non-return air guide.

[0061] The unloading roller 2 is provided with an intermediate air cavity 64 corresponding to the air pressure cavity 24 one by one, and the intermediate air cavity 64 is connected with the corresponding air pressure cavity 24. A groove 641 is provided on the side wall of the intermediate air cavity 64 adjacent to the air guide column 63, and the groove 641 is arranged in an arc shape along the circumference of the unloading roller 2. When the unloading roller 2 rotates, the groove 641 of each intermediate air cavity 64 is connected with the air channel 631 in turn, and the air pressed into the air channel 631 enters the intermediate air cavity 64 through each groove 641 in turn, and then flows into the air pressure cavity 24. Since the reciprocating sliding of the unloading roller 2 has a frequency, the air pressure cavity 24 will be intermittently and continuously filled with air, so that the air pressure acting on the sliding member 51 is greater.

[0062] In other embodiments, the air guide structure may also be an external air source connected to the three air pressure chambers 24 respectively. The air source can achieve the purpose of applying air pressure to the sliding member 51 by directly inflating air into the air pressure chamber 24. However, compared with this embodiment, it will introduce external inflation equipment, increasing the equipment cost.

[0063] Continue to refer Figure 1 , Figure 3 , Figure 5 and Figure 6 The locking mechanism includes a locking member 71 and an unlocking plate 72. The sliding member 51 is provided with a locking groove, and the locking member 71 corresponds to the locking groove one by one. The locking member 71 is inserted and slidably mounted on the unloading roller 2 along the left-right direction and connected to the unloading roller 2 through a push spring 711. Under the action of the push spring 711, the left end of the locking member 71 is engaged in the corresponding locking groove, and the right end of the locking member 71 protrudes from the outside of the housing 1 to form a convex edge 712.

[0064] The end of the material-moving rod 4 that is away from the incomplete gear 31 passes through the housing 1 and forms a ring edge 44. One end of the unlocking plate 72 is sleeved on the material-moving rod 4 and abuts against the ring edge 44. The middle part of the unlocking plate 72 is connected to the housing 1 through an elastic member 721. The elastic member 721 can be a spring sleeve rod. When the material-moving rod 4 slides to the right, the ring edge 44 can push the unlocking plate 72 to slide to the right. When the material-moving rod 4 slides to the left, the elastic member 721 can pull the unlocking plate 72 to return to the left. The other end of the unlocking plate 72 forms a circular space, and the right end of the locking member 71 and the convex edge 712 penetrate into the circular space. The unlocking plate 72 forms an arc-shaped platform 722 at the bottom of the circular space, and the arc-shaped platform 722 is between the convex edge 712 and the casing 1. When the unlocking plate 72 slides to the right, the arc-shaped platform 722 slides to the right, and the arc-shaped platform 722 can hook the convex edge 712 below and pull the convex edge 712 below to the right, so that the locking member 71 in the lower position escapes from the locking groove, thereby unlocking the sliding member 51 in the lower position. Under the action of the air pressure in the air pressure chamber 24, the sliding member 51 slides toward the outside of the lower material roller 2, so that the pushing member 52 can push out the material particles in the metering hole 211. At this time, the metering hole 211 also turns to the lower position, and the pushed out material particles can fall to the outlet 12 and be discharged from the outlet 12.

[0065] The sliding member 51 has an extension portion extending toward the axis of the unloading roller 2, and the extension portion is provided with an inner hole 512. The side wall of the sliding cavity is provided with an outer hole 25. When the sliding member 51 slides outward to the extreme position, the inner hole 512 and the outer hole 25 are aligned and connected. At this time, the air in the air pressure cavity 24 is discharged to the outside through the inner hole 512 and the outer hole 25, thereby realizing the pressure relief in the air pressure cavity 24. Thereafter, the sliding member 51 is reset under the elastic force of the reset member 511.

[0066] refer to Figures 1 to 9 The present invention also provides a method for quantitatively feeding boric acid particles, which adopts the above-mentioned device for quantitatively feeding boric acid particles and comprises the following steps:

[0067] The material particles are poured into the housing 1, and the quantitative holes 211 located at the top receive the material particles.

[0068] The power assembly 3 drives the unloading roller 2 to rotate. With the cooperation of the folding groove 22 and the limiting member 13, the unloading roller 2 slides back and forth and generates vibration, thereby reducing the residual gaps between the material particles and allowing the material particles to fill the quantitative holes 211.

[0069] When the metering hole 211 rotates downward, the material particles fall down and are discharged from the casing 1.

[0070] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0071] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0072] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A boric acid granule quantitative feeding device, comprising a housing (1) and a feeding mechanism, wherein the feeding mechanism comprises a feeding roller (2) matched in the housing (1) and a power assembly (3) for driving the feeding roller (2) to rotate, wherein a plurality of quantitative holes (211) are distributed on a peripheral wall of the feeding roller (2). It is characterized in that One of the peripheral wall of the unloading roller (2) and the inner wall of the housing (1) is provided with a corrugated groove or a folded line groove (22) surrounding the axis of the unloading roller (2), and the other is provided with a limiting member (13) that cooperates with the corrugated groove or the folded line groove (22). The cooperation between the corrugated groove or the folded line groove (22) and the limiting member (13) enables the unloading roller (2) to slide back and forth in the left and right directions when rotating, thereby causing the unloading roller (2) to vibrate.

2. The boric acid granule quantitative feeding device according to claim 1, It is characterized in that It also includes a material shifting mechanism, which includes: A material-moving rod (4), the housing (1) having an upward inlet (11) and a downward outlet (12), the material-moving rod (4) being arranged at the inlet (11) and being rotatable, and the power assembly (3) being capable of driving the material-moving rod (4) to rotate; A material distributing member, wherein the material distributing member is arranged in a plurality of intervals along the axial direction of the material distributing rod (4), and the material distributing member comprises two spiral paddles (41) arranged in pairs about the axis of the material distributing rod (4), each spiral paddle (41) being arranged half a circle around the axis of the material distributing rod (4) and connected to the material distributing rod (4), and when the material distributing rod (4) rotates, the two spiral paddles (41) respectively spread material particles to both sides.

3. The boric acid granule quantitative feeding device according to claim 2, It is characterized in that One of the material-moving rod (4) and the housing (1) is provided with a cam groove (42), and the other is provided with a limiting member (14) that fits in the cam groove (42); the cam groove (42) and the limiting member (14) fit together so that the material-moving rod (4) can slide back and forth when rotating.

4. The boric acid granule quantitative feeding device according to claim 2, It is characterized in that The power assembly (3) comprises: An incomplete gear (31) is rotatably mounted on one side of the housing (1); one end of the material-moving rod (4) passes through the housing (1) and is slidably disposed in the incomplete gear (31); a motor (33) is mounted on the housing (1) and is transmission-connected to the incomplete gear (31) to drive the incomplete gear (31) to rotate; The complete gear (32) is located below the incomplete gear (31) and is rotatably mounted on the housing (1). The complete gear (32) is coaxially slidably connected to the unloading roller (2). When the incomplete gear (31) rotates, it can mesh with the complete gear (32) to drive the incomplete gear (31) to rotate.

5. The boric acid granule quantitative feeding device according to claim 4, It is characterized in that The plurality of quantitative holes (211) are divided into a plurality of hole groups (21) arranged along the circumference of the discharge roller (2), each hole group (21) comprising a plurality of quantitative holes (211) arranged at intervals along the axial direction of the discharge roller (2), and when the discharge roller (2) rotates, the plurality of hole groups (21) can sequentially receive material particles.

6. The boric acid granule quantitative feeding device according to claim 5, It is characterized in that It also includes a pushing mechanism, the pushing mechanism includes a pushing unit (5) corresponding to the hole group (21) one by one, the pushing unit (5) includes a sliding cavity, a sliding member (51) and a pushing member (52), the sliding cavity is opened on the unloading roller (2) and is located on the side of the hole group (21) facing the axis of the unloading roller (2), the sliding member (51) is slidably fitted in the sliding cavity along the radial direction of the unloading roller (2) and is connected to the unloading roller (2) through a reset member (511), there are a plurality of pushing members (52) and they are respectively slidably fitted in a plurality of quantitative holes (211) of the hole group (21), and each pushing member (52) is connected to the sliding member (51); An air guide structure is also provided between the unloading roller (2) and the housing (1) so that external air can enter the sliding cavity and force the sliding member (51) to slide outwards.

7. The boric acid granule quantitative feeding device according to claim 6, It is characterized in that The air guide structure comprises an air chamber (61) formed between one end surface of the unloading roller (2) and a side wall of the housing (1), an air inlet opened on the housing (1) and connected to the air chamber (61), a one-way air guide member (62) installed at the air inlet for guiding air into the air chamber (61), and an air guide column (63), one end of the air guide column (63) extending into the air chamber (61) and being rotatably connected to the unloading roller (2), and the other end of the air guide column (63) being slidably mounted on the housing (1), (63) is provided with an air passage (631) connected to the air containing chamber (61) and a non-return air guide installed in the air passage (631); the unloading roller (2) is provided with intermediate air chambers (64) corresponding to the sliding chambers one by one, the intermediate air chambers (64) are connected to the corresponding sliding chambers, and a groove (641) is provided on the side wall of the intermediate air chamber (64) adjacent to the air guide column (63); when the unloading roller (2) rotates, the grooves (641) of each intermediate air chamber (64) are connected to the air passage (631) in sequence.

8. The boric acid granule quantitative feeding device according to claim 7, It is characterized in that The invention also includes a locking mechanism, which includes a locking member (71) and an unlocking plate (72). The sliding member (51) is provided with a locking groove. The locking member (71) and the locking groove correspond to each other and are elastically slidably inserted on the unloading roller (2). One end of the locking member (71) is engaged in the corresponding locking groove, and the other end protrudes from the outside of the housing (1) to form a convex edge (712). One end of the material-moving rod (4) that is away from the incomplete gear (31) passes through the outside of the housing (1) to form a ring edge (44). One end of the unlocking plate (72) is sleeved on the material-moving rod (4). ) and abuts against the annular edge (44), the middle portion of the unlocking plate (72) is connected to the housing (1) via an elastic member (721), the other end of the unlocking plate (72) forms a circular space, the other end of the locking member (71) and the convex edge (712) penetrate into the circular space, the unlocking plate (72) forms an arc-shaped platform (722) at the bottom of the circular space, and when the arc-shaped platform (722) slides toward the outside of the housing (1), it can hook the convex edge (712) below, so that the locking member (71) escapes from the locking groove.

9. The boric acid granule quantitative feeding device according to claim 2, It is characterized in that The housing (1) has an outward protrusion, the material-moving rod (4) passes through the protrusion, the protrusion is provided with an annular air chamber (15) coaxial with the material-moving rod (4), and the material-moving rod (4) has an annular portion (43) fitted in the annular air chamber (15); A material guide frame (111) extending outwardly and obliquely is provided at the inlet (11) of the casing (1); a material guide inner plate (112) is provided at the bottom of the material guide frame (111); one end of the material guide inner plate (112) is hinged to the material guide frame (111); an air bag structure (113) is provided between the other end and the material guide frame (111); the air bag structure (113) is connected to the annular air chamber (15) via an air pipe (151).

10. A method for quantitatively feeding boric acid particles, It is characterized in that The boric acid granule quantitative feeding device as claimed in claim 1 comprises the following steps: Pour the material particles into the housing (1), and the quantitative hole (211) located at the top receives the material particles; The power assembly (3) drives the unloading roller (2) to rotate, and under the cooperation of the corrugated groove or the folding groove (22) and the limiting member (13), the unloading roller (2) slides back and forth and generates vibration, thereby reducing the residual gaps between the material particles and allowing the material particles to fill the quantitative holes (211); When the metering hole (211) rotates downward, the material particles fall down and are discharged from the casing (1).

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