CN214524478U - Powder feeding metering device - Google Patents

Powder feeding metering device Download PDF

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Publication number
CN214524478U
CN214524478U CN202120368910.0U CN202120368910U CN214524478U CN 214524478 U CN214524478 U CN 214524478U CN 202120368910 U CN202120368910 U CN 202120368910U CN 214524478 U CN214524478 U CN 214524478U
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China
Prior art keywords
feeder
shell
main frame
vibrator
screw feeder
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CN202120368910.0U
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Chinese (zh)
Inventor
张竹
徐国瑞
周顺峰
翁庆元
董银善
张祥
李晓武
王兵
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Qinhuangdao Sannong Modern Mechanical Equipment Co ltd
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Qinhuangdao Sannong Modern Mechanical Equipment Co ltd
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Abstract

The utility model discloses a powder feed metering device belongs to material feed measurement field. Comprises a main frame, a storage bin, a screw feeder, a vibration feeder, a weight sensor and a controller; the bin is arranged at the top of the main frame, and the screw feeder is arranged below the discharge hole at the bottom of the bin; the vibrating feeder comprises a vibrator arranged on the main frame and a shell fixedly connected with the vibrator, an outlet shell of the screw feeder is inserted into a shell inlet of the vibrating feeder, a certain vibrating gap is reserved between the outlet shell of the screw feeder and the shell inlet of the vibrating feeder, a discharging barrel is fixedly arranged at the shell outlet of the vibrating feeder, and the weight of the material falling into the packaging bag is measured through a weight sensor; the driving motor, the vibrator and the weight sensor are connected with the controller. The utility model discloses at first through screw feeder quick feed, then through the accurate feed of vibratory feeder low-speed, both prevent effectively that the material from hardening, realized quick accurate measurement again.

Description

Powder feeding metering device
Technical Field
The utility model relates to a material feed measurement field especially indicates a powder feed metering device.
Background
The powder feeding and metering device is a feeding and metering device for materials, is widely applied to metering devices of chemical industry, food, medicine and the like, and realizes the feeding and packaging process of powder. The existing powder feeding device has the modes of spiral feeding, vibration feeding and the like.
The spiral feed transports the powder through the screw conveyer, and because of the hydroscopicity of many raw materials, the raw materials is very easy to be affected with damp and absorb water, and especially when the powder feed metering device is applied to the fertilizer preparation field, the fertilizer preparation raw materials have very strong hydroscopicity. The conveying mode of the screw conveyor is extrusion conveying, and the water-absorbing and damp raw materials are easily hardened in the screw conveyor under extrusion, so that feeding conveying cannot be realized. In order to solve the hardening problem of spiral conveying, the screw pitch needs to be increased. However, when powder is fed and packaged, not only the raw materials need to be conveyed, but also the conveyed raw materials need to be accurately metered, so that the weight of each bag of powder after packaging is the same. Too large a pitch can result in the inability to accurately meter the material being delivered.
Vibration feed carries the raw materials through the vibrations of delivery board, though vibration feed can realize more accurate measurement, vibration feed speed is very slow, can't satisfy the rapid production of powder feed packing.
SUMMERY OF THE UTILITY MODEL
The utility model provides a powder feed metering device, the utility model discloses in a feed measurement process, at first carry out quick feed through screw feeder, then carry out the accurate feed of low-speed through the vibratory feeder, both prevent effectively that the material from hardening, realized quick accurate measurement again.
The utility model provides a technical scheme as follows:
the utility model provides a powder feed metering device, includes main frame, feed bin, screw feeder, vibratory feeder, weighing sensor and controller, wherein:
the bin is arranged at the top of the main frame, the screw feeder is arranged below a discharge hole at the bottom of the bin, and the screw feeder is driven by a driving motor;
the vibration feeder comprises a vibrator and a shell, the vibrator is mounted on the main frame, the shell is fixedly connected with the vibrator, an outlet shell of the screw feeder is inserted into a shell inlet of the vibration feeder, a certain vibration gap is reserved between the outlet shell of the screw feeder and the shell inlet of the vibration feeder, a blanking barrel enabling materials to fall into a packaging bag is fixedly arranged at a shell outlet of the vibration feeder, and the weight of the materials in the packaging bag is weighed through a weight sensor;
the driving motor, the vibrator and the weight sensor are all connected with the controller.
Further, the spiral tail end of the spiral feeder is flush with the outlet shell of the spiral feeder, or the spiral tail end of the spiral feeder extends out of the outlet shell of the spiral feeder.
Furthermore, a dust hood cylinder surrounding the blanking cylinder is arranged outside the blanking cylinder, a certain gap is formed between the inner surface of the dust hood cylinder and the outer surface of the blanking cylinder, the upper end of the dust hood cylinder is connected with the upper end of the blanking cylinder through a flexible air-impermeable material, an air outlet is formed in the side wall of the dust hood cylinder, the air outlet is connected with a dust removal device through an air pipe, and the dust removal device is connected with a fan.
Furthermore, a bag clamping device for clamping the upper opening of the packaging bag is arranged on the dust hood barrel, one end of the weight sensor is arranged on the main frame, and the other end of the weight sensor is connected with the dust hood barrel.
Further, a flashboard is arranged at an outlet of the shell of the vibratory feeder, the degree of opening and closing of the flashboard is controlled by a driving device, and the driving device is connected with the controller.
Furthermore, a mounting plate is fixedly arranged on the main frame or the storage bin, a certain vibration gap is reserved between the mounting plate and the outer wall of the shell of the vibration feeder, a certain vibration gap is reserved between the flashboard and the shell of the vibration feeder, and the driving device is mounted on the mounting plate.
Further, install the shock attenuation callus on the sole on the vibrator, the vibrator passes through the shock attenuation callus on the sole setting on the main frame.
Furthermore, a counterweight steel plate is arranged on the vibrator.
Furthermore, a soft sealing material is arranged between the outlet shell of the screw feeder and the inlet of the shell of the vibration feeder.
Further, the fan and the dust removing device are installed inside the main frame and located at the bottom of the main frame.
The utility model discloses following beneficial effect has:
the utility model discloses at a feed measurement in-process, at first carry out quick feed through screw feeder, when being close target weight, carry out low-speed accurate feed through vibratory feeder, both prevent effectively that the material from hardening, realized quick accurate measurement again.
Drawings
FIG. 1 is a perspective view of the powder feeding and metering device of the present invention;
FIG. 2 is a front view of the powder feeding and metering device of the present invention;
FIG. 3 is a side view of the powder feed metering device of the present invention;
FIG. 4 is a sectional view taken along the line A-A of one embodiment of the powder feeding and metering device of the present invention;
FIG. 5 is a sectional view taken along the line A-A of another embodiment of the powder feeding and metering device of the present invention;
fig. 6 is a top view of the powder feeding and metering device of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The embodiment of the utility model provides a powder feed metering device, as shown in fig. 1-6, it includes main frame 1, feed bin 2, screw feeder 4, vibratory feeder, weighing sensor 10 and controller, wherein:
the bin 2 is arranged at the top of the main frame 1, the screw feeder 4 is arranged below the discharge port 3 at the bottom of the bin 2, and the screw feeder 4 is driven by the driving motor 5. The driving motor can be a speed reducing motor, and the shaft of the screw feeder is directly connected with a speed reducer shaft hole of the speed reducing motor.
The vibratory feeder comprises a vibrator 8 and a shell 6, the vibrator 8 is installed on the main frame 1, the shell 6 is fixedly connected with the vibrator 8, an outlet shell 7 of the screw feeder 4 is inserted into a shell inlet 22 of the vibratory feeder, a certain vibration gap is reserved between the outlet shell 7 of the screw feeder 4 and the shell inlet 22 of the vibratory feeder, a blanking barrel 9 enabling materials to fall into a packaging bag is fixedly arranged at a shell outlet 23 of the vibratory feeder, and the weight of the materials in the packaging bag is weighed through a weight sensor 10.
Aforementioned screw feeder and vibratory feeder can the level setting, also can follow the certain angle setting of powder direction of transportation downward sloping, to this the utility model discloses do not do the injecing.
The driving motor 5, the vibrator 8 and the weight sensor 10 are all connected with a controller, the controller is located in a control box 11, and the control box 11 is arranged on the side face of the main frame 1.
The utility model is used for the feed measurement of powder, feed packing, the feed packing of fertilizer in the fertile technology of joining in marriage very much, the utility model discloses an application method as follows:
s1: the packaging bag is arranged below the blanking barrel, the driving motor and the vibrator are started by the controller, materials in the storage bin fall into the packaging bag from the blanking barrel under the conveying of the screw feeder and the vibration feeder, and the controller measures the weight of the materials in the packaging bag in real time through the weight sensor.
The utility model discloses in, can pour the material into the feed bin through artificial mode in, also can carry the feeding storehouse through other modes in, carry through lifting machine etc. for example.
In the step, the packaging bag can be placed on a metering scale positioned below the charging barrel, the metering scale and the main frame are two separated independent devices, and the weight sensor is positioned in the metering scale to measure the weight of the packaging bag in real time. Of course, the packaging bag can be clamped on the charging barrel, and the weight of the packaging bag is measured in real time through the weight sensor arranged on the main frame.
This step is used for carrying out quick feed in the packing bag, and screw feeder conveying speed is fast to screw feeder's pitch is great, sets up the pitch according to the material, makes the material can not harden in screw feeder.
S2: when the weight of the materials in the packaging bag reaches the set weight, the controller turns off the driving motor, the vibrator is kept on, and the materials remained in the shell of the vibration feeder fall into the packaging bag from the blanking barrel under the vibration conveying of the vibration feeder. Wherein the set weight is less than and close to the target weight of the package.
Because the screw pitch of the screw feeder is large, the conveyed materials are difficult to accurately control, and when the weight of the materials in the packaging bag is close to the target weight of the packaging bag, the weight of the materials in the packaging bag cannot be accurately measured by continuously using the screw feeder for conveying.
Therefore, when the weight of the materials in the packaging bag approaches the target weight of the packaging bag, the driving motor is turned off, and the screw feeder is not used for conveying any more. The materials left in the shell of the vibration feeder fall into the packaging bag from the blanking barrel in a vibration conveying mode, so that low-speed accurate feeding is realized.
S3: when the weight of the materials in the packaging bag reaches the target weight, the controller closes the vibrator, stops feeding, removes the packaging bag and completes the feeding and metering process.
The utility model discloses at a feed measurement in-process, at first carry out quick feed through screw feeder, when being close target weight, carry out low-speed accurate feed through vibratory feeder, both prevent effectively that the material from hardening, realized quick accurate measurement again.
After the material absorbs water and wets, glue easily on the internal surface of blanking section of thick bamboo, for solving this problem, the utility model discloses fix casing 6 and blanking section of thick bamboo 9 and vibrate jointly together, under the effect of vibration, prevent that the material from gluing on blanking section of thick bamboo internal surface.
Casing and doffer are fixed together to vibrate jointly can have multiple implementation mode, the utility model discloses do not limit this, for example: the shell and the blanking barrel can be integrally processed and formed, and are integrally formed, or the shell and the blanking barrel are two parts which are separated, and are welded or fixed together through bolts after being assembled.
The utility model discloses in, the material passes through screw feeder and carries in the casing of vibratory feeder, then still need carry one section distance back in the casing of vibratory feeder and reach the blanking section of thick bamboo. When the viscosity of the material is high, the material is not smoothly conveyed in the shell of the vibratory feeder and is easy to block. For solving this problem, as shown in fig. 5, the utility model discloses stretch out screw feeder's spiral end 24 the certain length of export shell 7 of screw feeder, stretch out the spiral of the certain length of export shell and be located vibratory feeder's casing, carry the material in the vibratory feeder casing to the doffer, prevent to block up at vibratory feeder casing because of the great lead to of material stickness.
When the viscosity of the material is small, the screw end 24 of the screw feeder does not need to extend out of the outlet housing 7 of the screw feeder, but only needs to be flush with the screw end 24 of the screw feeder and the outlet housing 7 of the screw feeder, as shown in fig. 4.
When the weight of the materials in the packaging bag reaches the target weight, the feeding is stopped, the feeding and conveying are completed once, and the packaging bag is removed for subsequent processes. Because the material contains the dust, at the in-process that removes the wrapping bag, inevitable has dust pollution, for solving this problem, the utility model discloses be provided with the dust excluding hood section of thick bamboo 12 that surrounds the blanking section of thick bamboo 9 outside the blanking section of thick bamboo 9, the internal surface of dust excluding hood section of thick bamboo 12 and the certain clearance of surface interval of blanking section of thick bamboo 9, the upper end of dust excluding hood section of thick bamboo 12 is connected through flexible air-proof material 21 with the upper end of blanking section of thick bamboo 9, has seted up the air outlet on the lateral wall of dust excluding hood section of thick bamboo 12, and the air outlet is connected with dust collector 14 through tuber pipe 13, and dust collector 14 is connected with fan 15.
Based on the above structure, the utility model discloses a use method still includes:
s4: when the packaging bag is removed, the controller starts the fan, and the material dust is sucked into the dust removal device through the fan, so that dust removal is realized.
During dust removal, material dust firstly enters a gap between the dust removing cover barrel and the blanking barrel from the bottoms of the dust removing cover barrel and the blanking barrel, then sequentially enters the dust removing device from the air outlet and the air pipe, the material dust is separated from air, the air is discharged from the fan after dust removal, and the separated material dust can be added into the storage bin for reuse.
Because the blanking barrel vibrates along with the shell, and the dust hood barrel does not vibrate, the upper end of the dust hood barrel is connected with the upper end of the blanking barrel through flexible and air-impermeable materials such as plastic cloth, sealing is achieved, and the blanking barrel can vibrate and the dust hood barrel does not vibrate.
Further, a bag clamping device 16 for clamping the upper opening of the packaging bag is arranged on the dust hood cylinder 12, one end of the weight sensor 10 is arranged on the main frame 1, and the other end of the weight sensor is connected with the dust hood cylinder 12 for weighing the materials in the packaging bag. When the weight of the materials in the packaging bag reaches the target weight, the bag clamping device is automatically opened, and the packaging bag automatically falls.
As an improvement of the present invention, the outlet 23 of the casing of the vibratory feeder is provided with a shutter 17, the shutter 17 controls the opening and closing degree through a driving device 18, the driving device 18 is connected with the controller, and in one of the examples, the driving device 18 may be an air cylinder.
The utility model can control the opening and closing degree of the flashboard according to the feeding speed, and when the feeding is needed, the flashboard 17 is opened to a large degree or is opened completely; when medium-speed or low-speed feeding is required, the opening degree of the gate 17 is small, feeding is not required after the weight of the materials in the packaging bag reaches the target weight, and the controller controls the driving device to close the gate.
The flashboard can be a flashboard, and the opening and closing degree is controlled by controlling the opening angle of the flashboard through the controller; the shutter may be a plurality of shutter units arranged in parallel, and the degree of opening and closing of the shutter units is controlled by a controller.
Illustratively, the shutter may include a first shutter unit 17 and a second shutter unit (not shown) arranged in parallel, the first shutter unit 17 and the second shutter unit being driven to open and close by a first driving device 18 and a second driving device 20, respectively, the first driving device 18 and the second driving device 20 being connected to the controller.
Based on the above structure, the above S1 specifically includes:
s11: the upper opening of the packaging bag is clamped on the dust removal cover cylinder through the bag clamping device, the first gate plate unit and the second gate plate unit are opened by the first driving device and the second driving device under the control of the controller, and the weight of materials in the packaging bag is measured in real time through the weight sensor by the controller.
S12: the controller starts a driving motor and a vibrator, the driving motor drives the screw feeder to rotate at a set high speed, and the vibrator drives a shell of the vibration feeder to vibrate at a set amplitude to convey the materials into the packaging bag. The step is a rapid charging process.
Similarly, S2 specifically includes:
s21: when the weight of the materials in the packaging bag reaches a set first weight, the driving motor drives the screw feeder to rotate at a set low speed, and the vibrator drives the shell of the vibration feeder to vibrate at a set amplitude to convey the materials into the packaging bag. The step is a medium-speed feeding process.
S22: when the weight of the materials in the packaging bag reaches a set second weight, the controller turns off the driving motor to keep the vibrator open, and controls the first driving device to turn off the first gate plate unit, so that the materials remained in the vibration feeder fall into the packaging bag from the blanking barrel under the vibration conveying of the vibration feeder shell. The step is a low-speed accurate feeding process.
Similarly, S3 specifically includes:
s31: when the weight of the materials in the packaging bag reaches the target weight, the controller closes the vibrator, the vibrator stops vibrating, and the controller controls the second driving device to close the second gate plate unit and stop feeding; the bag clamping device automatically loosens the bag to finish a feeding and metering process.
The utility model discloses in, realize at the uniform velocity quick feed through screw conveyer, in the material flowed into vibratory feeder, vibratory feeder accomplished accurate feed, the material was measured through the weighing transducer who presss from both sides the bagging apparatus and goes up the installation, and dust collector carries out recovery processing through the dust that the tuber pipe produced sack whereabouts in-process.
The utility model discloses in, the fixed mounting panel 25 that is provided with on main frame 1 or the feed bin 2, the position of mounting panel can be located vibratory feeder 3's casing top to there is certain vibration clearance between 6 outer walls of casing of mounting panel 25 and vibratory feeder 3, has certain vibration clearance between the casing 6 of flashboard 17 and vibratory feeder 3, and the drive arrangement 18 of flashboard 17 is installed on mounting panel 25.
When the housing 6 of the vibration feeder 3 vibrates, the mounting plate 25 and the gate 17 do not vibrate together with the housing 6 of the vibration feeder 3 due to the existence of the vibration gap between the mounting plate 25 and the housing 6 of the vibration feeder 3 and the existence of the vibration gap between the gate 17 and the housing 6 of the vibration feeder 3, the driving device 18 on the mounting plate 25 does not vibrate, the driving device 18 is prevented from being damaged due to vibration, and the service life of the driving device 18 is prolonged.
In order to improve the sealing performance of the casing 6 of the vibration feeder 3, a soft sealing material such as rubber or soft rubber may be provided in the vibration gap between the shutter 17 and the casing 6 of the vibration feeder 3 to seal the gap.
The vibrator 8 is located inside the main frame 1 and below the casing 6 of the vibration feeder, and a shock-absorbing foot pad is installed on the vibrator 8, and the vibrator 8 is arranged on the main frame 1 through the shock-absorbing foot pad. The shock attenuation callus on the sole can reduce the vibration of main frame, noise abatement.
The vibrator 8 is further provided with a counterweight steel plate, the counterweight steel plate is used for increasing the mass of the main frame, the vibration is smaller when the mass is larger, the vibration of the main frame can be effectively reduced, and particularly the vibration of the lower part of the main frame along with the vibrator can be reduced.
A soft sealing material 19 such as sponge and soft rubber is arranged between the outlet shell 7 of the screw feeder and the shell inlet 22 of the vibration feeder, and the soft sealing material can realize the sealing of the connection part of the vibration feeder and the screw feeder and also prevent the screw feeder from vibrating together with the vibration feeder.
The fan and the dust removal device are arranged in the main frame and positioned at the bottom of the main frame, a guard plate can be arranged at the bottom of the main frame, and a door capable of being opened and closed is arranged on the guard plate; the air pipe on the dust removing device can be directly connected with the bag clamping device.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a powder feed metering device which characterized in that, includes main frame, feed bin, screw feeder, vibratory feeder, weighing transducer and controller, wherein:
the bin is arranged at the top of the main frame, the screw feeder is arranged below a discharge hole at the bottom of the bin, and the screw feeder is driven by a driving motor;
the vibration feeder comprises a vibrator and a shell, the vibrator is mounted on the main frame, the shell is fixedly connected with the vibrator, an outlet shell of the screw feeder is inserted into a shell inlet of the vibration feeder, a certain vibration gap is reserved between the outlet shell of the screw feeder and the shell inlet of the vibration feeder, a blanking barrel enabling materials to fall into a packaging bag is fixedly arranged at a shell outlet of the vibration feeder, and the weight of the materials in the packaging bag is weighed through a weight sensor;
the driving motor, the vibrator and the weight sensor are all connected with the controller.
2. A powder feed metering device as claimed in claim 1, wherein the screw end of the screw feeder is flush with the outlet housing of the screw feeder or the screw end of the screw feeder extends a length beyond the outlet housing of the screw feeder.
3. The powder feeding and metering device of claim 1 or 2, wherein a dust hood cylinder surrounding the blanking cylinder is arranged outside the blanking cylinder, a certain gap is formed between the inner surface of the dust hood cylinder and the outer surface of the blanking cylinder, the upper end of the dust hood cylinder is connected with the upper end of the blanking cylinder through a flexible and air-tight material, an air outlet is formed in the side wall of the dust hood cylinder, the air outlet is connected with a dust removal device through an air pipe, and the dust removal device is connected with a fan.
4. The powder feeding and metering device of claim 3, wherein the dust hood barrel is provided with a bag clamping device for clamping the upper opening of the packaging bag, one end of the weight sensor is arranged on the main frame, and the other end of the weight sensor is connected with the dust hood barrel.
5. A powder feeding and metering device as claimed in claim 3, wherein the fan and the dust removal device are mounted inside the main frame at the bottom of the main frame.
6. A powder feeding and metering device as claimed in claim 1 or 2, wherein a shutter is arranged at the outlet of the casing of the vibratory feeder, the shutter is controlled to open and close by a driving device, and the driving device is connected with the controller.
7. The powder feeding and metering device of claim 6, wherein a mounting plate is fixedly arranged on the main frame or the storage bin, a certain vibration gap is reserved between the mounting plate and the outer wall of the shell of the vibration feeder, a certain vibration gap is reserved between the shutter and the shell of the vibration feeder, and the driving device is arranged on the mounting plate.
8. A powder feeding and metering device as claimed in claim 1 or 2, wherein the vibrator is provided with a shock-absorbing foot pad, and the vibrator is arranged on the main frame through the shock-absorbing foot pad.
9. A powder feeding and metering device as claimed in claim 8, wherein the vibrator is provided with a counter-weight steel plate.
10. A powder feed metering device as claimed in claim 1 or claim 2, wherein a soft sealing material is provided between the outlet housing of the screw feeder and the inlet of the housing of the vibratory feeder.
CN202120368910.0U 2021-02-08 2021-02-08 Powder feeding metering device Active CN214524478U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120368910.0U CN214524478U (en) 2021-02-08 2021-02-08 Powder feeding metering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120368910.0U CN214524478U (en) 2021-02-08 2021-02-08 Powder feeding metering device

Publications (1)

Publication Number Publication Date
CN214524478U true CN214524478U (en) 2021-10-29

Family

ID=78235471

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120368910.0U Active CN214524478U (en) 2021-02-08 2021-02-08 Powder feeding metering device

Country Status (1)

Country Link
CN (1) CN214524478U (en)

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