A powder spiral weighing scale

Abstract

The utility model relates to the technical field of powder feeding, and discloses a powder spiral metering scale, wherein the powder spiral metering scale comprises a conveying pipe, an auger installed inside the conveying pipe, and a discharging barrel installed at one end of the conveying pipe, an anti-blocking part is installed inside the discharging barrel, and the anti-blocking part comprises a motor installed on the top of the discharging barrel, the discharging barrel is rotatably connected to a rotating shaft, the output end of the motor extends to the inside of the discharging barrel and is fixedly connected to the rotating shaft, a first connecting rod is fixedly connected to the surface of the rotating shaft, a stirring roller is fixedly connected to the surface of the first connecting rod, a stirring blade is fixedly connected to the other end of the stirring roller, the stirring roller is tilted, the stirring rollers are arranged equidistantly, and the stirring rollers correspond to the stirring blades one by one. The powder spiral metering scale can increase the stirring amplitude of the powder by providing an anti-blocking part, and can accelerate the dispersion and loosening of the powder, so that the particles of the powder are stirred into small particles, thereby avoiding the situation that the powder will be blocked due to volume reasons.

Description

Technical Field

[0001] The utility model relates to the technical field of powder feeding, in particular to a powder spiral metering scale. Background Art

[0002] The powder spiral metering scale is a device that mainly transports powdered materials from the storage warehouse to the weighing bin through a rotating screw conveyor, and then measures and weighs them. It is widely used in many fields.

[0003] At present, when the powder spiral metering scale is in use, the powder is conveyed to the surface of the metering scale by the conveyor roller, and then the metering scale will automatically weigh and record the weighing data. However, in actual operation, some powders with larger particles will cause blockage of the discharge port due to volume problems; at the same time, due to blockage or obstruction of the discharge port, the powder will cause problems such as agglomeration and sedimentation. During normal material discharge, it will cause some of the agglomerated materials to be discharged at the same time or continue to agglomerate some of the materials, thereby causing weighing errors.

[0004] In summary, the current powder spiral metering scale still has the following defects during use:

[0005] (1) When feeding powder with larger particles, its volume will cause the discharge port to be blocked;

[0006] (2) Blockage of the discharge port will cause weighing errors. Utility Model Content

[0007] In order to overcome the above-mentioned defects of the prior art, the inventors conducted in-depth research and completed the present utility model after paying a lot of creative work.

[0008] Specifically, the technical problem to be solved by the utility model is to provide a powder spiral metering scale to solve the current technical problem that when feeding powder with larger particles, its volume will cause the discharge port to be blocked.

[0009] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0010] A powder spiral metering scale comprises a conveying pipe, an auger installed inside the conveying pipe, and a discharging barrel installed at one end of the conveying pipe, wherein an anti-blocking device is installed inside the discharging barrel, and the anti-blocking device comprises a motor installed on the top of the discharging barrel, and the inside of the discharging barrel is rotatably connected to a rotating shaft, and the output end of the motor extends to the inside of the discharging barrel and is fixedly connected to the rotating shaft, and a first connecting rod is fixedly connected to the surface of the rotating shaft, and a stirring roller is fixedly connected to the surface of the first connecting rod, and a stirring blade is fixedly connected to the other end of the stirring roller, and the stirring roller is inclined and arranged equidistantly, and the stirring roller corresponds to the stirring blade one by one.

[0011] As an improved technical solution, the other end of the first connecting rod and the end away from the rotating shaft is fixedly connected with an anti-sticking plate, the surface of the anti-sticking plate is located on the inner side of the discharging barrel and fits therewith, the anti-sticking plate is arranged in a trapezoidal shape, and an anti-error part is installed on the surface of the rotating shaft and located at the bottom of the first connecting rod.

[0012] As an improved technical solution, the anti-error part includes a second connecting rod fixed on the surface of the rotating shaft, the second connecting rod is arranged in a ring array, the other end of the second connecting rod and the end away from the rotating shaft is fixedly connected to a connecting rod, the other end of the connecting rod is fixedly connected to an inclined rod, and a discharge plate is installed at the bottom of the inclined rod, and the discharge plate is located at the bottom of the inner side of the discharge barrel and fits with its surface.

[0013] As an improved technical solution, an anti-sticking strip is fixedly connected to the top of the discharge plate, and the anti-sticking strip is located on the inner side of the discharge barrel and fits therewith.

[0014] As an improved technical solution, a spring is fixedly connected inside the discharge plate, and a push rod is fixedly connected to the other end of the spring. The push rod is located inside the discharge plate and movably sleeved therewith.

[0015] As an improved technical solution, a positioning shaft is fixedly connected to one side of the discharging barrel, a torque spring is installed on the surface of the positioning shaft, a baffle is movably sleeved on the surface of the positioning shaft, and both ends of the torque spring are fixedly connected to the positioning shaft and the baffle respectively.

[0016] After adopting the above technical solution, the beneficial effects of the utility model are:

[0017] 1. The utility model can increase the stirring amplitude of the powder by providing an anti-blocking member, and can accelerate the dispersion and loosening of the powder, so that the particles of the powder are stirred into small particles, thereby avoiding the situation that the powder will cause blockage due to volume reasons.

[0018] 2. The utility model can divide the space inside the discharge barrel into three areas by providing an anti-error component, and the powder materials in the three areas can be discharged in sequence through the discharge plate to achieve the purpose of accurate discharge, thereby avoiding the occurrence of errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0020] Figure 1 It is a schematic diagram of the overall structure of the powder spiral metering scale of the utility model.

[0021] Figure 2 It is a sectional view of the overall structure of the powder spiral metering scale of the utility model.

[0022] Figure 3 The utility model is a schematic diagram of the anti-blocking component structure of the powder spiral metering scale.

[0023] Figure 4 The utility model is a schematic diagram of the structure of the error-proof component of the powder spiral metering scale.

[0024] Figure 5 The utility model is a schematic diagram of the position relationship of the baffle, positioning shaft and torque spring of the powder spiral metering scale.

[0025] Description of reference numerals:

[0026] 1. Conveying pipe; 11. Discharging barrel; 12. Auger; 2. Anti-blocking part; 21. Motor; 22. Rotating shaft; 23. First connecting rod; 24. Stirring roller; 25. Stirring blade; 26. Anti-sticking plate; 27. Anti-error part; 271. Second connecting rod; 272. Connecting rod; 273. Oblique rod; 274. Discharging plate; 275. Anti-sticking strip; 276. Spring; 277. Push rod; 28. Baffle; 29. ​​Positioning shaft; 291. Torque spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0030] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their 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 addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] Reference Figure 1-5 , which is the first embodiment of the utility model, provides a powder spiral metering scale, which includes a conveying pipe 1, an auger 12 installed inside the conveying pipe 1, a discharge barrel 11 installed at one end of the conveying pipe 1, one end of the auger 12 is fixedly connected with a driving motor for driving it, and the driving motor is located at one end of the conveying pipe 1, a feeding port for discharging materials is installed on the top of the conveying pipe 1, and an anti-blocking member 2 is installed inside the discharge barrel 11;

[0032] The anti-blocking member 2 includes a motor 21 installed on the top of the discharging barrel 11, and the internal rotation of the discharging barrel 11 is connected to the rotating shaft 22. The output end of the motor 21 extends to the inside of the discharging barrel 11 and is fixedly connected to the rotating shaft 22. The surface of the rotating shaft 22 is fixedly connected to the first connecting rod 23, and the surface of the first connecting rod 23 is fixedly connected to a stirring roller 24. The other end of the stirring roller 24 is fixedly connected to a stirring blade 25. The stirring roller 24 is tilted and arranged equidistantly. The stirring roller 24 corresponds to the stirring blade 25 one by one. The stirring blade 25 and the stirring roller 24 are symmetrically arranged in a direction, which can continuously stir the powder to loosen the powder particles and avoid blockage. The first connecting rod 23 is symmetrically arranged to improve the stirring effect.

[0033] The other end of the first connecting rod 23 and the end away from the rotating shaft 22 is fixedly connected with an anti-sticking plate 26. The surface of the anti-sticking plate 26 is located on the inner side of the discharge barrel 11 and fits therewith. The anti-sticking plate 26 is arranged in a trapezoidal shape. An anti-error part 27 is installed on the surface of the rotating shaft 22 and located at the bottom of the first connecting rod 23. Since the diameter of the end close to the inner side of the discharge barrel 11 is smaller, the dispersion and loosening of the powder can be accelerated during stirring, thereby improving the stirring effect. In addition, the setting of the anti-sticking plate 26 can prevent the powder from sticking to the inner wall of the discharge barrel 11, thereby reducing the possibility of powder accumulation.

[0034] The anti-error member 27 includes a second connecting rod 271 fixed on the surface of the rotating shaft 22, and the second connecting rod 271 is arranged in a ring array. The other end of the second connecting rod 271 and the end away from the rotating shaft 22 is fixedly connected to a connecting rod 272, and the other end of the connecting rod 272 is fixedly connected to an inclined rod 273. A discharge plate 274 is installed at the bottom of the inclined rod 273. The discharge plate 274 is located at the bottom of the inner side of the discharge barrel 11 and fits with its surface. The discharge plate 274 and the inclined rod 273 can be connected by bolts to facilitate the maintenance and replacement of the discharge plate 274, and there is no movable groove between the two. When the discharge plate 274 and the inclined rod 273 are engaged, bolts can be used to connect them to avoid instability of the discharge plate 274, and the surface of the second connecting rod 271 is also installed with a stirring roller 24 and a stirring blade 25.

[0035] The top of the discharge plate 274 is fixedly connected with an anti-sticking strip 275, which is located on the inner side of the discharge barrel 11 and fits therewith, thereby preventing the powder from sticking to the inner wall of the discharge barrel 11 and improving the efficiency of powder stirring. Together with the anti-sticking plate 26, the powder can be prevented from sticking and the service life of the discharge barrel 11 can be increased.

[0036] A spring 276 is fixedly connected to the inside of the discharge plate 274, and the other end of the spring 276 is fixedly connected to a push rod 277. The push rod 277 is located inside the discharge plate 274 and is movably connected to the discharge plate 274. One end of the discharge plate 274 is fitted with the inner side of the discharge barrel 11, and the push rod 277 is clamped inside the discharge plate 274. One end of the push rod 277 and the end close to the discharge barrel 11 are spherical, which can facilitate its entry into the interior of the discharge plate 274.

[0037] A positioning shaft 29 is fixedly connected to one side of the discharge barrel 11, a torque spring 291 is installed on the surface of the positioning shaft 29, a baffle 28 is movably sleeved on the surface of the positioning shaft 29, and both ends of the torque spring 291 are fixedly connected to the positioning shaft 29 and the baffle 28 respectively. The torque spring 291 can make the baffle 28 have the resilience of automatic reset. At the same time, the elasticity of the torque spring 291 can facilitate the operation of unloading. The number of turns and the inner diameter of the spring 276 are greater than the torque spring 291. Figure 5 The torque spring 291 in the figure is an enlarged structure and cannot represent its actual specifications.

[0038] During use, the powder is poured into the conveying tube 1 through the feed port at the top of the conveying tube 1, and the driving motor is started to drive the auger 12 to convey the powder, so that the powder continuously enters the inside of the discharge tube 11. In the process of conveying the powder, the friction of the auger 12 will initially crush the density of the powder. At the same time, the motor 21 is started to drive the rotating shaft 22 to rotate, and drive the first connecting rod 23 to drive the stirring roller 24 and the stirring blade 25 to rotate, so that the powder is greatly stirred. At the same time, since the stirring roller 24 and the stirring blade 25 are both inclined, the density of the powder can be affected while stirring, thereby accelerating the dispersion and loosening of the powder. In addition, since the rotating shaft 22 also drives the second connecting rod 271 to rotate when it rotates, the stirring roller 24 and the stirring blade 25 on its surface will also do the same movement as the stirring roller 24 and the stirring blade 25 on the surface of the first connecting rod 23, so as to increase the stirring amplitude and stir the powder particles into small particles, thereby avoiding the situation that the powder will be blocked due to volume reasons.

[0039] When the rotating shaft 22 rotates, it will also drive the connecting rod 272 and the inclined rod 273 to rotate through the second connecting rod 271, and make the discharge plate 274 rotate along the inner side of the discharge barrel 11, so that the powder inside the discharge barrel 11 rotates along the inner side of the discharge barrel 11. During normal rotation, the push rod 277 will be stuck in the inside of the discharge plate 274 due to the pressure inside the discharge barrel 11. Since the baffle 28 is movably connected to the discharge barrel 11, when it rotates to the inner side of the baffle 28, the pressure of the spring 276 is cancelled, and the push rod 277 will move toward the baffle 28 through its own elastic force, and at the same time make it flip along the surface of the positioning shaft 29. The powder located on the inner side of the discharge plate 274 falls to the outside of the discharge barrel 11 and the surface of the measuring scale through the gap between the baffle 28 and the discharge barrel 11. In this way, errors can be prevented and the purpose of accurate measurement is further achieved.

[0040] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A powder spiral metering scale, comprising a conveying pipe (1), an auger (12) installed inside the conveying pipe (1), and a discharge barrel (11) installed at one end of the conveying pipe (1), characterized in that: An anti-blocking member (2) is installed inside the discharge barrel (11); The anti-blocking member (2) includes an electric motor (21) mounted on the top of a discharging barrel (11); the discharging barrel (11) is rotatably connected to a rotating shaft (22); the output end of the electric motor (21) extends to the inside of the discharging barrel (11) and is fixedly connected to the rotating shaft (22); the surface of the rotating shaft (22) is fixedly connected to a first connecting rod (23); the surface of the first connecting rod (23) is fixedly connected to a stirring roller (24); the other end of the stirring roller (24) is fixedly connected to a stirring blade (25); the stirring roller (24) is tilted and arranged equidistantly; the stirring rollers (24) correspond one to one with the stirring blades (25).

2. The powder spiral metering scale according to claim 1, characterized in that: An anti-sticking plate (26) is fixedly connected to the other end of the first connecting rod (23) and the end away from the rotating shaft (22). The surface of the anti-sticking plate (26) is located on the inner side of the discharge barrel (11) and fits therewith. The anti-sticking plate (26) is arranged in a trapezoidal shape. An anti-error member (27) is installed on the surface of the rotating shaft (22) and located at the bottom of the first connecting rod (23).

3. The powder spiral metering scale according to claim 2, characterized in that: The anti-error member (27) comprises a second connecting rod (271) fixed on the surface of the rotating shaft (22), the second connecting rod (271) being arranged in a ring array, the other end of the second connecting rod (271) and the end away from the rotating shaft (22) being fixedly connected to a connecting rod (272), the other end of the connecting rod (272) being fixedly connected to an inclined rod (273), a discharge plate (274) being installed at the bottom of the inclined rod (273), the discharge plate (274) being located at the bottom of the inner side of the discharge barrel (11) and being in contact with its surface.

4. The powder spiral metering scale according to claim 3, characterized in that: The top of the discharge plate (274) is fixedly connected with an anti-sticking strip (275), and the anti-sticking strip (275) is located on the inner side of the discharge barrel (11) and fits therewith.

5. The powder spiral metering scale according to claim 4, characterized in that: A spring (276) is fixedly connected inside the discharge plate (274), and a push rod (277) is fixedly connected to the other end of the spring (276). The push rod (277) is located inside the discharge plate (274) and is movably sleeved therewith.

6. The powder spiral metering scale according to claim 5, characterized in that: A positioning shaft (29) is fixedly connected to one side of the discharge barrel (11), a torque spring (291) is installed on the surface of the positioning shaft (29), a baffle (28) is movably sleeved on the surface of the positioning shaft (29), and two ends of the torque spring (291) are fixedly connected to the positioning shaft (29) and the baffle (28), respectively.

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