Feeding hopper

Abstract

The utility model provides a feed hopper which comprises a hopper body, and a round feed opening is arranged at the bottom of the hopper body. The feeding hopper solves the problem of how to enable powder in the feeding hopper to be discharged more quickly in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic material processing equipment, in particular to a feeding hopper. Background Art

[0002] In the existing feeding hopper, there is a flat powder channel between the feeding port and the discharge port. The feeding hopper also vibrates under the action of the vibration device. The powder (such as NdFeB magnetic powder) moves to the discharge port through the long powder channel while vibrating until it is discharged from the discharge port. In this process, the discharge speed of the square discharge port is slow because the cross section of the discharge port is square.

[0003] Therefore, how to make the charging hopper discharge materials more quickly becomes a technical problem that needs to be solved. Utility Model Content

[0004] The utility model aims to provide a charging hopper, which mainly solves the problem in the prior art of how to enable the charging hopper to discharge materials more quickly.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a feeding hopper, characterized in that the feeding hopper comprises a hopper body, and a circular feeding port is arranged at the bottom of the hopper body.

[0006] Further, the circular discharge port is located at the front end of the bucket body;

[0007] And / or a screen is also arranged in the bucket body, the screen is located above the bottom of the bucket body, and the screen is connected to the side wall of the bucket body.

[0008] Furthermore, a plurality of protrusions are provided on both sides of the screen, the protrusions are connected to the side walls of the bucket body, and side wall powder dropping openings are formed between adjacent protrusions;

[0009] Furthermore, the feeding hopper also includes a feeding nozzle, and the inner side wall of the feeding nozzle is provided with a third internal thread;

[0010] A cylindrical extension is provided at the bottom of the circular discharge port, a first external thread is provided on the outer wall of the extension, a first through hole is provided inside the extension, and the first through hole is connected to the circular discharge port;

[0011] The third internal thread of the blanking nozzle matches the first external thread of the extension portion.

[0012] Furthermore, a third through hole is provided in the feed nozzle, and the third through hole is connected to the discharge port at the lower part of the feed nozzle;

[0013] The third internal thread of the feed nozzle is arranged on the inner side wall of the upper part of the third through hole, and the outer side wall of the upper part of the feed nozzle is cylindrical;

[0014] Furthermore, the outer side wall of the upper part of the feed nozzle is also provided with a flat surface part for cooperating with a wrench.

[0015] And / or the outer side wall of the lower part of the feeding nozzle is in the shape of an inverted frustum of a cone.

[0016] Furthermore, a third mounting hole is provided on the upper portion of the feed nozzle, a third groove is provided on the first external thread of the extension portion, and a third set screw is connected to the third mounting hole and then embedded in the third groove.

[0017] Furthermore, the feeding hopper also includes a hollow anti-drop sleeve, and the extension portion is nested in the hollow portion of the anti-drop sleeve;

[0018] The top of the anti-drop sleeve is provided with a limiting portion extending inwards, and the limiting portion corresponds to the top of the feed nozzle;

[0019] The outer side wall of the upper part of the feeding nozzle is nested in the inner side wall of the lower part of the hollow part of the anti-dropping sleeve, and the inner side wall of the lower part of the hollow part of the anti-dropping sleeve limits the third set screw.

[0020] Furthermore, the side wall of the rear section of the bucket body is higher than the side wall of the front section of the bucket body, and a first mounting plate is provided between the two side walls of the rear section of the bucket body;

[0021] The first mounting plate is located above the bottom of the bucket body, and a third channel for powder to pass through is formed between the first mounting plate and the bottom of the bucket body, and the first mounting plate is connected to a gate for controlling the size of the third channel space; or the first mounting plate is located above the screen, and a first channel for powder to pass through is formed between the first mounting plate and the screen, and the first mounting plate is connected to a gate for controlling the size of the first channel space.

[0022] Further, the first mounting plate is provided with a first mounting hole, the gate is provided with a strip-shaped second mounting hole, the second mounting hole is in a vertical state, and the first mounting hole and the second mounting hole are detachably connected by a first bolt;

[0023] And / or a plurality of powder blocking parts are provided at the bottom of the gate, the space between adjacent powder blocking parts is a powder passing channel, the powder passing channel is a vertical strip hole, and the lower end of the strip hole is open;

[0024] and / or the tops of the two side walls of the rear section of the bucket body are each provided with a first side wing inclined outwards;

[0025] and / or the first mounting plate is located at the front ends of the two side walls of the rear section of the bucket body;

[0026] And / or the screen is set at an angle with the front lower and the back higher;

[0027] And / or the width of the powder outlet on the side wall is 1-3 times the width of the sieve hole in the sieve;

[0028] and / or the screen covers one-half to one-sixth of the length of the bottom of the bucket from back to front;

[0029] And / or the inner side wall of the limiting portion of the anti-drop sleeve is provided with a second internal thread, and the second internal thread is connected to the first external thread.

[0030] In view of the above technical features, the utility model has the following beneficial effects:

[0031] 1. A feeding hopper of the utility model is set as a circular discharge port. Compared with a square discharge port, under the same size, the circular cross-sectional area is larger, the powder discharge is faster, and the powder discharge efficiency is higher. In addition, the inner side wall of the circular discharge port is an arc surface, which is not easy to accumulate powder.

[0032] 2. The utility model provides a feeding hopper with a screen. After the powder falls into the hopper, it is screened by the screen and falls to the bottom of the hopper. This can effectively solve the problem that the powder channel on the plane is too long, which easily leads to powder stacking (or "powder clumping") and affects the speed and effect of powder discharge from the discharge port. The powder is dispersed by the screen to ensure the quality of the screened powder and better powder fluidity.

[0033] 3. In the feeding hopper of the utility model, after the feed nozzle and the extension of the circular feed opening are threadedly connected, the two are fixed by the third set screw to increase the fastening strength between the two. In addition, the third set screw is limited by the anti-drop sleeve to prevent the third set screw from accidentally slipping off, which can further improve the stability and safety of the connection between the feed nozzle and the extension of the circular feed opening.

[0034] 4. A feeding hopper of the utility model controls the size of the first channel space through the gate design, controls the amount of powder moving forward above the screen, ensures that the powder can be screened by the screen as much as possible, and ensures the quality of the powder after screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of a charging hopper in specific embodiment 1 (after the discharge nozzle is installed);

[0036] Figure 2 It is a structural schematic diagram of a charging hopper in specific embodiment 3 (before the discharge nozzle is installed);

[0037] Figure 3 It is a structural schematic diagram of a charging hopper in specific embodiment 3 (after the discharge nozzle is installed);

[0038] Figure 4 It is a structural schematic diagram of a feeding hopper in specific embodiment 4 (before the feeding nozzle is installed, an anti-drop sleeve is provided);

[0039] Figure 5 It is a structural schematic diagram of a feeding hopper in specific embodiment 4 (after the feeding nozzle is installed, an anti-drop sleeve is provided);

[0040] Figure 6 A partial cross-sectional view of a charging hopper in specific embodiment 4 (after the feed nozzle is installed, an anti-slip sleeve is provided).

[0041] In the figure: 1, bucket body; 1-1, front section of bucket body; 1-2, rear section of bucket body; 1-3, bottom of bucket body; 1-4, circular discharge opening; 1-5, first side wing;

[0042] 2. Screen; 2-1. Protrusion; 2-2. Powder drop opening on the side wall; 2-3. Screen hole;

[0043] 3. First mounting plate; 3-1. First channel; 3-2. First mounting hole; 3-3. First bolt; 3-4. Third channel;

[0044] 4. Extension portion; 4-1. First external thread; 4-2. First through hole; 4-3. Third groove;

[0045] 5. Feeding nozzle; 5-1. Third internal thread; 5-2. Third through hole; 5-3. Plane portion; 5-4. Third mounting hole; 5-5. Third set screw;

[0046] 6. Anti-drop sleeve; 6-1. Position limiting portion; 6-2. Hollow portion of the anti-drop sleeve; 6-3. Inner wall of the anti-drop sleeve;

[0047] 7. Gate; 7-1. Second mounting hole; 7-2. Powder blocking part; 7-3. Powder passing channel. DETAILED DESCRIPTION

[0048] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

[0049] The "front" and "rear" in the present invention are based on the moving direction of the powder in the bucket 1, the moving direction of the powder is the front, and the direction opposite to the moving direction of the powder is the rear.

[0050] See also Figure 1 , Specific embodiment 1, this embodiment 1 provides a feeding hopper, the feeding hopper includes a hopper body 1, and the bottom 1-3 of the hopper body is provided with a circular discharge port 1-4, the powder falls into the hopper body 1, and the powder falling to the bottom 1-3 of the hopper body is moved forward to the circular discharge port 1-4 under the action of a vibration mechanism (not shown in the attached drawings, the vibration mechanism belongs to the prior art, such as a pneumatic vibrator), which is convenient for discharge. Compared with a square discharge port, the circular cross-sectional area is larger under the same size, so the circular discharge port 1-4 discharges powder faster and more efficiently. And the inner side wall of the circular discharge port is an arc surface, which is not easy to accumulate powder. The circular discharge port 1-4 is located at the front end of the hopper body 1.

[0051] See also Figure 1, Specific embodiment 2, this embodiment 2 provides a charging hopper, and this embodiment 2 is different from embodiment 1 in that: the side wall of the hopper body rear section 1-2 is higher than the side wall of the hopper body front section 1-1, and a first mounting plate 3 is provided between the two side walls of the hopper body rear section 1-2;

[0052] The first mounting plate 3 is located above the bottom 1-3 of the bucket body, and a third channel 3-4 for powder to pass through is formed between the first mounting plate 3 and the bottom 1-3 of the bucket body. The first mounting plate 3 is connected to a gate 7 for controlling the size of the third channel 3-4. A plurality of powder blocking parts 7-2 are provided at the bottom of the gate 7, and the space between adjacent powder blocking parts 7-2 is a powder passing channel 7-3.

[0053] When the powder on the bottom 1-3 of the bucket body passes through the powder passage 7-3, the powder blocking part 7-2 breaks up or screens the powder to improve the fluidity of the powder and prevent the powder from piling up. The powder falls into the bucket body 1, and the bucket body 1 is driven to vibrate by the vibration mechanism. After the powder on the bottom 1-3 of the bucket body passes through the third passage 3-4, it passes through the powder passage 7-3, and the powder blocking part 7-2 of the gate 7 combs and breaks up the powder.

[0054] The first mounting plate 3 is provided with a first mounting hole 3-2, and the gate 7 is provided with a strip-shaped second mounting hole 7-1, the second mounting hole 7-1 is in a vertical state, and the first mounting hole 3-2 and the second mounting hole 7-1 are detachably connected by a first bolt 3-3, for example, the first mounting hole 3-2 (see Figure 4 The gate 7 is detachably connected to the first mounting plate 3 by bolts (not shown in the accompanying drawings) and the second mounting hole 7-1 is detachably connected to facilitate disassembly and cleaning. The strip-shaped second mounting hole 7-1 can also be used to adjust the height position of the gate 7 on the first mounting plate 3, thereby adjusting the height of the gate 7 (i.e., indirectly adjusting the size of the powder passage 7-3) and controlling the speed and amount of powder moving forward on the bottom 1-3 of the hopper body.

[0055] The powder passage 7-3 is a vertical strip hole, which is used to adjust the height of the gate 7 and adjust the size of the powder passage 7-3. The lower end of the strip hole is open, and the opening is for the powder to move forward more smoothly on the bottom 1-3 of the bucket body.

[0056] See also Figures 2 to 3 , Specific embodiment 3, this embodiment 3 provides a feeding hopper, and this embodiment 2 is different from embodiment 1 in that: a screen 2 is also provided in the hopper body 1, and the screen 2 is located above the bottom 1-3 of the hopper body. The powder falls into the hopper body 1, and after being screened by the screen 2, it falls to the bottom 1-3 of the hopper body, which can effectively avoid the accumulation of powder in the hopper body 1 (or "powder agglomeration"), and the screen 2 is used to disperse the powder, thereby ensuring the quality of the screened powder and improving the fluidity of the powder.

[0057] Preferably, the space between the screen 2 and the bottom 1-3 of the bucket body is used for the powder to fall after being screened by the screen 2. The powder falling to the bottom 1-3 of the bucket body moves forward to the circular discharge port 1-4 after being screened by the screen 2 under the action of a vibration mechanism (not shown in the drawings, the vibration mechanism belongs to the prior art, such as a pneumatic vibrator), so as to facilitate discharge and avoid agglomeration of the powder. Compared with a square discharge port, under the condition of the same size, the circular discharge port 1-4 has a larger circular cross-sectional area, and the circular discharge port 1-4 discharges powder faster and more efficiently.

[0058] The screen 2 is connected to the side wall of the bucket body 1. For example, a plurality of protrusions 2-1 are provided on both sides of the screen 2. The protrusions 2-1 are connected to the side wall of the bucket body 1, and side wall powder dropping openings 2-2 are formed between adjacent protrusions 2-1. Because there is a folded angle at the connection between the screen 2 and the side wall of the bucket body 1, powder is easily accumulated at the connection, which affects the efficiency and quality of the screen 2 screening powder. At this time, the protrusions 2-1 on both sides of the screen 2 are designed to realize the connection between the screen 2 and the side wall of the bucket body 1, and form a plurality of spaced side wall powder dropping openings 2-2. In this way, once there is residual powder at the connection (i.e., residual powder on the screen 2), during the overall synchronous vibration of the bucket body 1 and the screen 2, the residual powder will fall to the bottom 1-3 of the bucket body through the side wall powder dropping openings 2-2, thereby preventing the residual powder from piling up and agglomerating at the connection.

[0059] The width of the side wall powder dropping opening 2-2 is 1-3 times the width of the sieve hole 2-3 in the screen 2. Here, the width of the side wall powder dropping opening 2-2 is slightly larger than the width of the sieve hole 2-3, which ensures that the side wall powder dropping opening 2-2 is used for powder dropping at the connection to avoid the technical effect of powder accumulation at the connection between the screen 2 and the side wall of the bucket 1. At the same time, the side wall powder dropping opening 2-2 can also play a certain screening role in powder screening, and will not affect the powder screening effect of the screen 2 due to the excessive opening of the side wall powder dropping opening 2-2 (for example, some agglomerated powder falls from the side wall powder dropping opening 2-2 to the bottom 1-3 of the bucket).

[0060] The "length" and "width" in the present invention are based on the moving direction of the powder in the bucket 1. The moving direction of the powder corresponds to the length direction, and the width direction is in the same plane as the length direction and perpendicular to the length direction.

[0061] The screen 2 covers one-half to one-sixth of the length of the bottom 1-3 of the bucket body from back to front, that is, the screen 2 covers the bottom 1-3 of the bucket body as much as possible, leaving only the top of the circular discharge port 1-4 uncovered. As long as the powder enters the bucket body 1, it will fall on the screen 2 and be screened by the screen 2. The powder moves forward on the screen 2. Because the screen 2 is long enough, the powder is screened by the screen 2 while moving forward, ensuring that the powder is screened by the screen 2 and falls to the bottom 1-3 of the bucket body before moving forward to the front end of the screen 2, thereby improving the screening quality of the screen 2, and making the best use of the space in the bucket body 1 to improve the screening efficiency. The top of the circular discharge port 1-4 is not covered by the screen 2, so as to facilitate observation of the discharge of the powder screened by the screen 2 from the circular discharge port 1-4.

[0062] The feeding hopper also includes a feeding nozzle 5, the inner wall of which is provided with a third internal thread 5-1, a cylindrical extension portion 4 is provided at the bottom of the circular feeding port 1-4, the extension portion 4 is used to connect the circular feeding port 1-4 with the feeding nozzle 5, the outer wall of the extension portion 4 is provided with a first external thread 4-1, and a first through hole 4-2 is provided inside the extension portion 4, the first through hole 4-2 is connected to the circular feeding port 1-4 (that is, the third through hole 5-2 of the circular feeding port 1-4), the powder screened by the screen 2 falls into the first through hole 4-2 from the circular feeding port 1-4, and then falls into the feeding nozzle 5 from the first through hole 4-2; the third internal thread 5-1 of the feeding nozzle 5 matches the first external thread 4-1 of the extension portion 4, that is, the third internal thread 5-1 is connected to the first external thread 4-1, so as to realize the connection and fixation between the feeding nozzle 5 and the extension portion 4, and the extension portion 4 is embedded in the feeding nozzle 5, which can prevent the powder from accumulating in the first through hole 4-2. The detachable threaded connection between the feeding nozzle 5 and the bucket body 1 (through the extension 4) also facilitates replacement of feeding nozzles 5 of different models or calibers to achieve different feeding speeds.

[0063] A third through hole 5-2 is provided in the feed nozzle 5, and the third through hole 5-2 is connected to the discharge port at the lower part of the feed nozzle 5. The third internal thread 5-1 of the feed nozzle 5 is arranged on the inner side wall of the upper part of the third through hole 5-2. The outer side wall of the upper part of the feed nozzle 5 is cylindrical. The outer side wall of the upper part of the feed nozzle 5 is also provided with a flat portion 5-3 for cooperating with a wrench. The operator can use a wrench (such as an adjustable wrench) to tighten the corresponding two flat portions 5-3, and the wrench drives the feed nozzle 5 to rotate circumferentially. Through the third internal thread 5-1 of the feed nozzle 5 and the first external thread 4-1 of the extension part 4, the connection and separation between the feed nozzle 5 and the extension part 4 are realized, the connection is more firm, and the disassembly and installation are more convenient.

[0064] The outer side wall of the lower part of the discharge nozzle 5 is in the shape of an inverted frustum of a cone, which is convenient for collecting the powder in a centralized manner.

[0065] The side wall of the bucket body rear section 1-2 is higher than the side wall of the bucket body front section 1-1. A first mounting plate 3 is provided between the two side walls of the bucket body rear section 1-2. The first mounting plate 3 is located above the screen 2. A first channel 3-1 for powder to pass through is formed between the first mounting plate 3 and the screen 2. The powder falls from the bucket body rear section 1-2 and falls on the screen 2 corresponding to the bucket body rear section 1-2. The powder is screened by the screen 2. The powder that has not been screened in time moves forward along the screen 2 under the action of the vibration mechanism. After passing through the first channel 3-1, it enters the screen 2 corresponding to the bucket body front section 1-1. The powder is screened continuously until the powder is screened by the screen 2 and falls into the bucket body bottom 1-3. The first mounting plate 3 limits the space size of the first channel 3-1 to limit the amount of powder passing through the first channel 3-1, ensuring that the powder passing through the first channel 3-1 can be screened by the screen 2 corresponding to the bucket body front section 1-1, thereby ensuring the quality of powder screening.

[0066] The "bucket body front section 1-1" and "bucket body rear section 1-2" described in the present invention are based on the moving direction of the powder in the bucket body 1, the powder forward direction is the front, and the direction opposite to the powder forward direction is the rear.

[0067] See also Figures 4 to 6 , specific embodiment 4, this embodiment 4 provides a feeding hopper, and the difference between this embodiment 3 and the aforementioned embodiment is that: a third mounting hole 5-4 is also provided on the upper part of the feed nozzle 5, and the first external thread 4-1 of the extension part 4 is provided with a third groove 4-3, and the third fixing screw 5-5 is connected with the third mounting hole 5-4 and then embedded in the third groove 4-3, and the third fixing screw 5-5 limits the circumferential rotation between the feed nozzle 5 and the extension part 4, that is, when the third internal thread 5-1 of the feed nozzle 5 and the first external thread 4-1 of the extension part 4 are connected, an additional layer of protection is added to ensure the stability of the connection between the feed nozzle 5 and the extension part 4, and to avoid accidental loosening and slipping of the two.

[0068] The first external thread 4-1 of the extension part 4 adopts the design of the third groove 4-3 instead of the through hole design, which not only realizes the limiting of the third locking screw 5-5 by the third groove 4-3, but also prevents the third locking screw 5-5 from extending into the first through hole 4-2 of the extension part 4, thereby preventing the third locking screw 5-5 from affecting the powder feeding effect in the first through hole 4-2.

[0069] The feeding hopper also includes a hollow anti-dropout sleeve 6, the extension portion 4 is nested in the hollow portion 6-2 of the anti-dropout sleeve 6, and the top of the anti-dropout sleeve 6 is provided with a limiting portion 6-1 extending inwardly, and the limiting portion 6-1 corresponds to the top of the discharge nozzle 5, that is, when the inner side wall of the protective sleeve is pressed tightly against the third fixing screw 5-5, the limiting portion 6-1 is against the top of the discharge nozzle 5 to prevent the anti-dropout sleeve 6 from further sliding down and falling off.

[0070] The outer side wall of the upper part of the feeding nozzle 5 is nested in the inner side wall 6-3 of the anti-dropping sleeve (for example, inside the lower inner side wall of the hollow part 6-2 of the anti-dropping sleeve 6), and the lower inner side wall of the hollow part 6-2 of the anti-dropping sleeve 6 limits the third tightening screw 5-5. When the anti-dropping sleeve 6 moves downward on the extension part 4, the protective sleeve covers the third tightening screw 5-5, and the protective sleeve presses the third tightening screw 5-5 to prevent the third tightening screw 5-5 from loosening. This is equivalent to adding a second layer of protection to the connection between the feeding nozzle 5 and the extension part 4, further ensuring the stability, tightening strength and safety of the connection between the feeding nozzle 5 and the extension part 4, ensuring the locking state between the two, and preventing the two from accidentally loosening or slipping. When it is necessary to separate the feed nozzle 5 and the extension part 4, push or rotate the protective sleeve to move the anti-drop sleeve 6 upward on the extension part 4, so that the protective sleeve is placed above the third tightening screw 5-5, and the third tightening screw 5-5 is unscrewed from the third mounting hole 5-4 to release the circumferential positioning between the feed nozzle 5 and the extension part 4, and then rotate the feed nozzle 5 with a wrench to realize the disassembly and separation of the feed nozzle 5 and the extension part 4.

[0071] The anti-drop sleeve 6 and the extension part 4 can be just sleeved, and there is no need for a direct connection between the two. Alternatively, a second internal thread (not shown in the attached drawings) can be provided on the inner side wall of the limiting part 6-1 of the anti-drop sleeve 6, and the second internal thread is connected to the first external thread 4-1. After the hollow part 6-2 of the anti-drop sleeve 6 is sleeved with the extension part 4, the second internal thread is connected to the first external thread 4-1, and the upper and lower positions of the anti-drop sleeve 6 on the extension part 4 can be adjusted more accurately, and the anti-drop sleeve 6 and the extension part 4 are always connected and not easy to be separated. Even if the feed nozzle 5 is disassembled, the anti-drop sleeve 6 and the extension part 4 are threadedly connected, and the two will not be easily separated, which is more convenient to use.

[0072] The screen 2 is tilted so that the powder moves forward and is screened by the screen 2. The powder moves forward along the tilted screen 2 by its own weight, and the forward movement speed and forward force of the powder are further improved on the basis of the original vibration of the vibration mechanism.

[0073] See also Figure 3 to Figure 4 , specific embodiment 5, this embodiment 5 provides a feeding hopper, the difference between this embodiment 3 and the previous embodiment is that: the first mounting plate 3 is connected to the gate 7 for controlling the size of the space of the first channel 3-1, and a plurality of powder blocking parts 7-2 are provided at the bottom of the gate 7, and the space between adjacent powder blocking parts 7-2 is a powder passing channel 7-3.

[0074] When the powder on the screen 2 passes through the powder passage 7-3, the powder blocking part 7-2 further breaks up the powder or further screens the powder to improve the fluidity of the powder and prevent the powder from piling up. The powder falls into the bucket 1, and the vibration mechanism drives the bucket 1 to vibrate. After the powder passes through the first passage 3-1, it passes through the powder passage 7-3, and the powder blocking part 7-2 of the gate 7 combs and breaks up the powder, so that the powder can be screened by the screen 2 more quickly and fall to the bottom 1-3 of the bucket.

[0075] The powder passage 7-3 is a vertical strip hole, which is used to adjust the height of the gate 7 and the size of the powder passage 7-3. The lower end of the strip hole is open, and the opening is for the powder to move forward on the screen 2 more smoothly.

[0076] The first mounting plate 3 is provided with a first mounting hole 3-2, and the gate 7 is provided with a strip-shaped second mounting hole 7-1, the second mounting hole 7-1 is in a vertical state, and the first mounting hole 3-2 and the second mounting hole 7-1 are detachably connected by a first bolt 3-3. For example, the first mounting hole 3-2 and the second mounting hole 7-1 are detachably connected by a bolt (not shown in the drawings), which is convenient for disassembly and cleaning, and the strip-shaped second mounting hole 7-1 can also be used to adjust the height position of the gate 7 on the first mounting plate 3 up and down, so as to adjust the height of the gate 7 (that is, indirectly adjust the size of the powder passage 7-3), and control the speed and amount of the powder moving forward on the screen 2.

[0077] The top of the two side walls of the rear section 1-2 of the bucket body is respectively provided with a first side wing 1-5 inclined outward, and the two first side wings 1-5 form an inverted trumpet shape with the opening upward, so as to better collect the powder falling into the bucket body 1 from the previous process and reduce the possibility of powder leakage.

[0078] In the present invention, “inward” refers to the direction toward the inside of the bucket body 1 , and “outward” refers to the direction toward the outside of the bucket body 1 .

[0079] The first mounting plate 3 is located at the front ends of the two side walls of the bucket body rear section 1-2, which more reasonably divides the bucket body front section 1-1 and the bucket body rear section 1-2, fully utilizes the space at both ends, and balances the amount of powder received by the bucket body rear section 1-2, the powder screening speed of the screen 2, and the powder forward movement speed.

[0080] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hopper, characterized in that: The feeding hopper comprises a hopper body (1), and a circular discharge opening (1-4) is provided at the bottom (1-3) of the hopper body for vibrating and moving powder; the circular discharge opening (1-4) is located at the front end of the hopper body (1).

2. A hopper according to claim 1, characterized in that: A screen (2) is also provided in the bucket body (1). The screen (2) is located above the bottom (1-3) of the bucket body, and the screen (2) is connected to the side wall of the bucket body (1).

3. A hopper according to claim 2, characterized in that: A plurality of protrusions (2-1) are provided on both sides of the screen (2); the protrusions (2-1) are connected to the side walls of the bucket body (1); and side wall powder dropping openings (2-2) are formed between adjacent protrusions (2-1).

4. A hopper according to claim 3, characterized in that: The feeding hopper further comprises a feeding nozzle (5), and the inner side wall of the feeding nozzle (5) is provided with a third internal thread (5-1); A cylindrical extension portion (4) is provided at the bottom of the circular discharge port (1-4); a first external thread (4-1) is provided on the outer wall of the extension portion (4); a first through hole (4-2) is provided inside the extension portion (4); and the first through hole (4-2) is connected to the circular discharge port (1-4); The third internal thread (5-1) of the feed nozzle (5) matches the first external thread (4-1) of the extension portion (4).

5. A feeding hopper according to claim 4, characterized in that: A third through hole (5-2) is provided in the discharge nozzle (5), and the third through hole (5-2) is connected to a discharge port at the bottom of the discharge nozzle (5); The third internal thread (5-1) of the feed nozzle (5) is arranged on the inner side wall of the upper portion of the third through hole (5-2), and the outer side wall of the upper portion of the feed nozzle (5) is cylindrical.

6. A hopper according to claim 5, characterized in that: The outer side wall of the upper portion of the feed nozzle (5) is also provided with a flat surface portion (5-3) for cooperating with a wrench; And / or the outer side wall of the lower part of the feed nozzle (5) is in the shape of an inverted frustum of a cone.

7. A hopper according to claim 4, 5 or 6, characterized in that: A third mounting hole (5-4) is also provided on the upper portion of the feed nozzle (5); a third groove (4-3) is provided on the first external thread (4-1) of the extension portion (4); and a third set screw (5-5) is connected to the third mounting hole (5-4) and then embedded in the third groove (4-3).

8. A feeding hopper according to claim 7, characterized in that: The feeding hopper also includes a hollow anti-dropout sleeve (6), and the extension portion (4) is nested in the hollow portion (6-2) of the anti-dropout sleeve; A limiting portion (6-1) extending inward is provided at the top of the anti-drop sleeve (6), and the limiting portion (6-1) corresponds to the top of the feed nozzle (5); The outer side wall of the upper portion of the feed nozzle (5) is nested inside the lower inner side wall of the hollow portion (6-2) of the anti-drop sleeve, and the lower inner side wall of the hollow portion (6-2) of the anti-drop sleeve limits the third set screw (5-5).

9. A hopper according to claim 1 or 2 or 3 or 4 or 5 or 6 or 8, characterized in that: The side wall of the bucket body rear section (1-2) is higher than the side wall of the bucket body front section (1-1), and a first mounting plate (3) is provided between the two side walls of the bucket body rear section (1-2); The first mounting plate (3) is located above the bottom (1-3) of the bucket body, a third channel (3-4) for powder to pass through is formed between the first mounting plate (3) and the bottom (1-3) of the bucket body, and the first mounting plate (3) is connected to a gate (7) for controlling the size of the space of the third channel (3-4); or the first mounting plate (3) is located above the screen (2), a first channel (3-1) for powder to pass through is formed between the first mounting plate (3) and the screen (2), and the first mounting plate (3) is connected to a gate (7) for controlling the size of the space of the first channel (3-1).

10. A feeding hopper according to claim 9, characterized in that: The first mounting plate (3) is provided with a first mounting hole (3-2), the gate (7) is provided with a strip-shaped second mounting hole (7-1), the second mounting hole (7-1) is in a vertical state, and the first mounting hole (3-2) and the second mounting hole (7-1) are detachably connected via a first bolt (3-3); and / or a plurality of powder blocking parts (7-2) are provided at the bottom of the gate (7), the space between adjacent powder blocking parts (7-2) is a powder passing channel (7-3), the powder passing channel (7-3) is a vertical strip hole, and the lower end of the strip hole is open; and / or the tops of the two side walls of the rear section (1-2) of the bucket body are each provided with a first side wing (1-5) inclined outwards; and / or the first mounting plate (3) is located at the front ends of the two side walls of the bucket rear section (1-2); and / or the screen (2) is arranged to be inclined with the front lower and the back higher; and / or the width of the side wall powder drop opening (2-2) is 1-3 times the width of the sieve hole (2-3) in the sieve (2); and / or the screen (2) covers from one-half to one-sixth of the length of the bottom (1-3) of the bucket body from back to front; And / or the inner side wall of the limiting portion (6-1) of the anti-drop sleeve (6) is provided with a second internal thread, and the second internal thread is connected to the first external thread (4-1).

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