CN216834372U

CN216834372U - Precise powder weighing device

Info

Publication number: CN216834372U
Application number: CN202220551950.3U
Authority: CN
Inventors: 赵言科; 徐承凯; 门霖
Original assignee: QINGDAO SHENGHAN CHROMATOGRAPHY TECHNOLOGY CO LTD
Current assignee: QINGDAO SHENGHAN CHROMATOGRAPHY TECHNOLOGY CO LTD
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-06-28
Anticipated expiration: 2032-03-14

Abstract

The utility model discloses a precision powder weighing device, which comprises a base, a precision balance, a first rotating motor, a feeding bin, a spherical blanking sieve hopper and a vibrating component for vibrating blanking; the first rotating motor is arranged on the base through a supporting rod, and the supporting rod can swing left and right slightly without causing the base to vibrate; precision balance's top is located to the feeding storehouse, and spherical blanking sieve fill is installed in the inside in feeding storehouse, and the first linking arm that spherical blanking sieve was fought runs through the lateral wall in feeding storehouse and is connected with the output of first rotation motor, and the second linking arm that spherical blanking sieve was fought rotates with the lateral wall in feeding storehouse to be connected, and the top that spherical blanking sieve was fought is equipped with opening and relative below and has seted up a plurality of sieve mesh. The utility model discloses can accomplish the feed of high dose through the opening that spherical blanking sieve was fought, accomplish the precision feed of low dose through the sieve mesh that spherical blanking sieve was fought, can not cause the jam of feed opening simultaneously to can not change the nature of powder, saved the human cost.

Description

Precise powder weighing device

Technical Field

The utility model relates to a technical field is weighed to the powder, in particular to accurate powder weighing device.

Background

The key part of the powder packaging precision weighing system is a weighing device, and a screw type metering device is often adopted for the occasions where powder materials are fine and the weighing precision requirement is higher. The screw scale is a volumetric metering principle device, the device provides power through a servo motor, the rotating speed or the number of turns of a screw rod is accurately controlled, the volume of discharged materials is determined through the rotary feeding mode of the screw rod, meanwhile, a weighing sensor in a weighing hopper transmits the weight information of the current metering object to a control system computer, and the control system computer compares the weight information with a target value according to the weight signal and controls the rotating speed and the number of turns of the screw rod in turn.

The feed mode of screw rod balance causes the jam of feed opening easily in the middle of the process of unloading, simultaneously, under the effect of screw rod, changes the nature of some powder easily, for example the caking, and the potential safety hazard is caused easily to the powder of some flammable and explosive types simultaneously.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an accurate powder weighing device.

A precision powder weighing device comprises a base, a precision balance, a first rotating motor, a feeding bin, a spherical blanking sieve hopper and a vibrating component for vibrating blanking; the precision balance is arranged on the base, the first rotating motor is arranged on the base through a supporting rod, and the supporting rod can slightly swing left and right without causing the base to vibrate; precision balance's top is located to the feeding storehouse, spherical blanking sieve fill is installed in the inside in feeding storehouse, the first linking arm of spherical blanking sieve fill runs through the lateral wall in feeding storehouse and is connected with the output of first rotation motor, the second linking arm of spherical blanking sieve fill rotates with the lateral wall in feeding storehouse to be connected, the top of spherical blanking sieve fill is equipped with opening and relative below and has seted up a plurality of sieve mesh.

Preferably, the feeding bin is fixed on the side wall of the first rotating motor through a connecting piece and is suspended above the precision balance, the feeding bin comprises a horn-shaped feeding hole and a discharging pipeline, the discharging pipeline is divided into an upper section and a lower section and is connected through a flange, and the upper section and the lower section of the connecting part of the discharging pipeline are oppositely provided with through holes for installing spherical discharging sieve hoppers.

Preferably, the vibration component for vibrating and blanking is a crank rocker component, and the output end of the crank rocker component is connected with the rod body of the supporting rod.

Preferably, the crank rocker component comprises a second rotating motor, a disc, a crank and a connecting rod, the second rotating motor is installed on the vibrating table, the circle center of the disc is installed on an output shaft of the rotating motor, one end of the crank is hinged to the edge of the disc, the other end of the crank is hinged to one end of the connecting rod, the other end of the connecting rod is hinged to the connecting seat, and the connecting seat is fixedly connected to the rod body of the supporting rod.

Preferably, the bottom end of the supporting rod is mounted on the base through a spring.

Preferably, a container is arranged on the precision balance and is positioned below the feeding bin.

Compared with the prior art, the utility model discloses there is following beneficial effect: the utility model relates to an ingenious, can accomplish the feed of large dose through the opening that spherical blanking sieve was fought, then accomplish the accurate feed of last small dose through the sieve mesh that spherical blanking sieve was fought, can not cause the jam of feed opening simultaneously to can not change the nature of powder, saved the human cost greatly. When the sieve mesh feed through spherical blanking sieve fill, designed one set of crank rocker vibrating device, the spring of cooperation bracing piece bottom can not cause precision balance's vibration when vibrating the feed to the precision that the influence was weighed.

Drawings

FIG. 1 is a side view of a portion of a powder weighing apparatus.

FIG. 2 is a side sectional view of a portion of the powder weighing apparatus.

Fig. 3 is a perspective view of the entire structure of a portion of the powder weighing apparatus.

Fig. 4 is a perspective view of the overall structure of the spherical blanking screen bucket.

Fig. 5 is a side view of the whole structure of embodiment 2.

FIG. 6 is a schematic structural view of a crank and rocker assembly portion in embodiment 2.

In the figure: 1. a base; 2. a precision balance; 3. a first rotating electric machine; 4. a feeding bin; 41. a flared feed port; 42. a blanking pipeline 5 is a spherical blanking sieve hopper; 51. a first connecting arm; 52. a second connecting arm; 53. an opening; 54. screening holes; 6. a support bar; 7. a connecting member; 8. a second rotating electric machine; 9. a disc; 10. a crank; 11. a connecting rod; 12. a vibration table; 13. a connecting seat; 14. a spring; 15. a container.

Detailed Description

Example 1:

as shown in fig. 1 to 4, the present solution provides a precision powder weighing device, which comprises a base 1, a precision balance 2, a first rotating motor 3, a feeding bin 4, a spherical blanking sieve hopper 5 and a vibrating component for vibrating blanking; the precision balance 2 is arranged on the base 1, the first rotating motor 3 is arranged on the base through the supporting rod 6, the supporting rod 6 can swing left and right slightly without causing the base 1 to vibrate, for example, the supporting rod 6 can be a hard rubber rod capable of generating slight deformation and the like; the feeding bin 4 is arranged above the precision balance 2, the feeding bin 4 can be fixed on the side wall of the first rotating motor 3 through a connecting piece 7 and is arranged above the precision balance 2 in a hanging mode, the feeding bin 4 comprises a horn-shaped feeding hole 41 and a discharging pipeline 42, the discharging pipeline 42 is divided into an upper section and a lower section and is connected through a flange, and through holes for mounting the spherical discharging sieve hoppers 5 are formed in the connecting positions of the upper section and the lower section of the discharging pipeline 42 in a relatively opened mode; spherical blanking sieve fill 5 is installed in the inside of feeding storehouse 4, and the first linking arm 51 of spherical blanking sieve fill 5 runs through the lateral wall of feeding storehouse 4 and is connected with the output of first rotation motor 3, and the second linking arm 52 of spherical blanking sieve fill 5 rotates with the lateral wall of feeding storehouse 4 to be connected, and the top of spherical blanking sieve fill 5 is equipped with opening 53 and relative below has seted up a plurality of sieve mesh 54. Meanwhile, a container 15 can be arranged on the precision balance 2, and the container 15 is positioned below the feeding bin 4.

Example 2:

as a preferred embodiment of embodiment 1, please refer to fig. 5 to 6, the other structures are the same as embodiment 1, and a preferred implementation manner of the vibrating assembly for vibrating blanking is provided in this embodiment.

The vibration component for vibrating and blanking is preferably a crank rocker component, and the output end of the crank rocker component is connected with the rod body of the supporting rod 6. The crank rocker component comprises a second rotating motor 8, a disc 9, a crank 10 and a connecting rod 11, the second rotating motor 8 is installed on a vibrating table 12, the circle center of the disc 9 is installed on an output shaft of the rotating motor, one end of the crank 10 is hinged to the edge of the disc 9, the other end of the crank 10 is hinged to one end of the connecting rod 11, the other end of the connecting rod 11 is hinged to a connecting seat 13, and the connecting seat 13 is fixedly connected to the rod body of the supporting rod 6. Meanwhile, the bottom end of the support rod 6 is mounted on the base 1 through a spring 14.

The working principle is as follows: during the use, wait to weigh the powder and get into from the tubaeform feed inlet in feeding storehouse, and the top opening through spherical blanking sieve fill enters into spherical blanking sieve fill, rotation through first motor, pour the powder in the spherical blanking sieve fill into the glassware on the precision balance through the opening, after the big-dose weighing work in earlier stage of completion, need the weighing of accurate minidose at last, close first rotation motor, the powder that will enter into spherical blanking sieve fill is added through the sieve mesh, specifically for starting the second and rotate the motor, it rotates to drive the disc, under the effect of crank and connecting rod, turn into the circular motion of disc the straight reciprocating motion of connecting seat, thereby light swing about driving the bracing piece, finally drive spherical blanking sieve fill vibration, make the powder slowly add in the glassware through the sieve mesh.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above-mentioned embodiments further explain the problems, technical solutions and advantages of the present invention in detail, it should be noted that those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the present invention can also have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the present invention as claimed.

Claims

1. The utility model provides a precision powder weighing device which characterized in that: the device comprises a base (1), a precision balance (2), a first rotating motor (3), a feeding bin (4), a spherical blanking sieve hopper (5) and a vibrating component for vibrating blanking; the precision balance (2) is arranged on the base (1), the first rotating motor (3) is arranged on the base through a support rod (6), and the support rod (6) can slightly swing left and right without causing the base (1) to vibrate; precision balance (2)'s top is located in feeding storehouse (4), install in the inside in feeding storehouse (4) spherical blanking sieve fill (5), the lateral wall that feeding storehouse (4) was run through in first linking arm (51) of spherical blanking sieve fill (5) is connected with the output of first rotation motor (3), second linking arm (52) of spherical blanking sieve fill (5) rotate with the lateral wall of feeding storehouse (4) and are connected, a plurality of sieve mesh (54) have been seted up to the top that spherical blanking sieve was fought (5) and relative below that is equipped with opening (53).

2. The powder weighing apparatus of claim 1, wherein: feeding storehouse (4) are fixed in on the lateral wall of first rotation motor (3) through connecting piece (7) and unsettled top of locating precision balance (2), feeding storehouse (4) are including tubaeform feed inlet (41) and unloading pipeline (42), unloading pipeline (42) divide into about two sections and through flange joint, two sections upper and lower junctions of unloading pipeline (42) are opened relatively and are equipped with the through-hole that is used for installing spherical blanking sieve fill (5).

3. The powder weighing apparatus according to claim 1 or 2, wherein: the vibration assembly for vibrating and blanking is a crank rocker assembly, and the output end of the crank rocker assembly is connected with the rod body of the supporting rod (6).

4. A powder weighing apparatus according to claim 3, wherein: the crank rocker component comprises a second rotating motor (8), a disc (9), a crank (10) and a connecting rod (11), the second rotating motor (8) is installed on a vibrating table (12), the circle center of the disc (9) is installed on an output shaft of the rotating motor, one end of the crank (10) is hinged to the edge of the disc (9), the other end of the crank (10) is hinged to one end of the connecting rod (11), the other end of the connecting rod (11) is hinged to a connecting seat (13), and the connecting seat (13) is fixedly connected to the rod body of the supporting rod (6).

5. A powder weighing apparatus according to claim 3, wherein: the bottom end of the supporting rod (6) is arranged on the base (1) through a spring (14).

6. The powder weighing apparatus of claim 1, wherein: a material container (15) is arranged on the precision balance (2), and the material container (15) is located below the feeding bin (4).