A high-precision automatic weighing system for granular materials

Abstract

The invention relates to a high-precision automatic weighing system for granular materials, comprising a workbench, a frame, a vibration feeding module, a feeding and feeding module, and a weighing feeding module; the vibration feeding module is provided with two discharge ports, one of which is connected to the weighing feeding module, and the other is connected to the feeding and feeding module; the feeding and feeding module comprises a precision material conveying track and a feeding cylinder matched with the precision material conveying track, and the feeding and feeding module is connected to the weighing feeding module through the precision material conveying track; the invention adds granular materials less than a predetermined amount into the weighing feeding module at one time through the vibration feeding module, and then accurately supplements the granular materials in the weighing feeding module to the predetermined amount through the feeding and feeding module, thereby improving the weighing accuracy, and automatically weighing, with high production efficiency, reducing harm to human body, and realizing mass production.

Description

Technical Field

[0001] The utility model relates to the technical field of automated production lines, in particular to a high-precision automatic weighing system for granular materials. Background Art

[0002] At present, the automatic weighing of the gas generating agent and ignition agent of the vehicle airbag air generator is an important process in the production and assembly of the product. Both the gas generating agent and the ignition agent are granular materials. The traditional method mostly uses manual weighing, which has safety hazards and a high probability of error. With the rapid development of automated production lines, the traditional weighing method has the following problems:

[0003] 1. Chemicals are exposed to air for too long, causing them to deteriorate and lose or weaken their effects;

[0004] 2. Manual charging and weighing will cause varying degrees of harm to the human body;

[0005] 3. The weighing accuracy cannot be guaranteed, resulting in a decrease in the yield rate of the product, wasting a lot of manpower and costs;

[0006] 4. It cannot meet the production line rhythm requirements, has low efficiency, and cannot achieve mass production. Utility Model Content

[0007] The utility model aims at the technical problems existing in the prior art and provides a high-precision automatic weighing system for granular materials, which has the advantages of accurate weighing, high production efficiency and good structural stability.

[0008] The utility model solves the above-mentioned technical problems through the following technical solutions: a high-precision automatic weighing system for granular materials, comprising a workbench, a frame, a vibration feeding module, a feeding and conveying module, and a weighing feeding module; the frame is installed on the workbench, and the vibration feeding module, the feeding and conveying module, and the weighing feeding module are all installed on the frame; the vibration feeding module is provided with two discharge ports, one of which is connected to the weighing feeding module, and the other is connected to the feeding and conveying module; the feeding and conveying module comprises a precision material conveying track, and a feeding cylinder matched with the precision material conveying track, and the feeding and conveying module is connected to the weighing feeding module through the precision material conveying track.

[0009] The beneficial effects of the utility model are as follows: granular materials less than a predetermined amount are added to the weighing and discharging module at one time through the vibrating discharging module, and then the granular materials in the weighing and discharging module are accurately replenished to the predetermined amount through the replenishing and feeding module, which can improve the weighing accuracy, and automatically weigh, with high production efficiency, reduce harm to the human body, and realize mass production.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the weighing and discharging module is installed on the outer wall of one side of the frame, and the weighing and discharging module includes a weighing support platform and a discharging hopper fixed bracket installed on the frame; a weighing assembly is arranged on the weighing support platform, and the weighing assembly includes a weight sensor; the weighing support platform is suspended with a weighing funnel through a weighing hanger, and the top of the weighing hanger is connected to the weight sensor; the discharging hopper fixed bracket is located below the weighing funnel, and a discharging hopper is arranged on the discharging hopper fixed bracket; when the granular material in the discharging funnel reaches a preset weight, the weighing assembly controls the bottom of the discharging funnel to open, and delivers the granular material to the discharging hopper; a discharging hopper vibrator is installed on the discharging hopper fixed bracket.

[0012] Furthermore, the vibration feeding module is arranged in the frame, and the vibration feeding module includes a medicine loading barrel; a medicine loading funnel is arranged at the bottom of the medicine loading barrel, a medicine bin is arranged at one end of the bottom of the medicine loading funnel, and a funnel flow medicine pipe is arranged at the other end of the bottom, and the discharge end of the funnel flow medicine pipe is connected to the feeding module; the bottom of the medicine bin is connected to the linear conveying hopper through the medicine bin flow medicine pipe, and the discharge end of the linear conveying hopper is connected to the top of the medicine weighing funnel; a funnel vibrator is arranged on the funnel flow medicine pipe; a medicine bin vibrator is arranged at the bottom of the medicine bin; and a linear vibrator is arranged at the bottom of the linear conveying hopper.

[0013] Furthermore, two slide rails are symmetrically arranged on both sides of the frame, and the two slide rails are respectively located on opposite sides of the medicine barrel; a slider is also arranged between the two slide rails and slidably cooperates with the two slide rails, and a first barrel clamp is rotatably arranged on the side of the slider close to the medicine barrel; a second barrel clamp is also rotatably arranged on the inner wall of the frame, and the first barrel clamp and the second barrel clamp clamp the medicine barrel; a handwheel is rotatably arranged on the outer wall of the frame away from the weighing and unloading module, and the handwheel is fixedly connected to the second barrel clamp coaxially.

[0014] Furthermore, the feeding and feeding module is arranged in the frame, and the feeding and feeding module also includes a vibrating loading tray; the discharge end of the funnel flow medicine tube is connected to the vibrating loading tray, and the discharge end of the vibrating loading tray is connected to the precision material conveying track.

[0015] Furthermore, at least two weighing components are arranged on the weighing support platform, and the weighing funnels corresponding to the weighing components are hoisted under the corresponding weighing components through the weighing hoist rod respectively; a receiving hopper fixed platform installed on the frame is also arranged between the weighing funnel and the lower hopper, and receiving hoppers corresponding to the weighing funnels are installed on the receiving hopper fixed platform, and the receiving hoppers are located directly under the corresponding weighing funnel respectively; the bottom of each receiving hopper is connected to the top of the lower hopper through a receiving pipe; a receiving hopper vibrator is arranged on the receiving hopper fixed platform.

[0016] Furthermore, a medicine bin flow pipe and a linear conveying hopper corresponding to the medicine weighing funnel are arranged below the medicine bin, the bottom of the medicine bin flow pipe is connected to the corresponding linear conveying hopper, and the discharge ends of the linear conveying hopper are respectively connected to the top of the corresponding medicine weighing funnel.

[0017] Furthermore, the discharge end of the vibrating loading tray is connected to the top of each of the medicine weighing funnels through the precision weighing material conveying track.

[0018] Furthermore, a frame rear door is arranged on the outer wall of the frame away from the weighing and unloading module, and a turntable is arranged on the frame rear door, and the frame rear door can be opened or closed by the turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a high-precision automatic weighing system for granular materials according to the utility model;

[0020] Figure 2 This is a front view of a high-precision automatic weighing system for granular materials according to the utility model;

[0021] Figure 3 It is a left view of a high-precision automatic weighing system for granular materials according to the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Workbench, 2. Frame, 21. Frame rear door, 22. Turntable, 3. Vibration unloading module, 31. Medicine barrel, 311. Slide rail, 312. Sliding block, 313. First barrel clamp, 314. Second barrel clamp, 315. Hand wheel, 32. Medicine hopper, 33. Funnel flow pipe, 331. Funnel vibrator, 34. Medicine warehouse, 341. Medicine warehouse vibrator, 35. Medicine warehouse flow pipe, 36. Linear vibrator support frame, 37. Linear vibrator, 38. Linear conveyor Hopper, 4. Feeding and conveying module, 41. Vibrating loading tray, 42. Precision weighing material conveying track, 43. Feeding cylinder, 44. Vibrating loading tray bracket, 5. Weighing and unloading module, 51. Weighing support platform, 52. Weighing assembly, 53. Weighing assembly, 54. Weighing funnel, 55. Receiving hopper fixed platform, 551. Receiving hopper vibrator, 56. Receiving hopper, 57. Receiving material pipeline, 58. Lower hopper fixed bracket, 581. Lower hopper vibrator, 59. Lower hopper. DETAILED DESCRIPTION

[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, a high-precision automatic weighing system for granular materials comprises a workbench 1, a frame 2, a vibration feeding module 3, a feeding and feeding module 4, and a weighing feeding module 5. The frame 2 is mounted on the workbench 1, the vibration feeding module 3 and the feeding and feeding module 4 are mounted in the frame 2, and the weighing feeding module 5 is mounted on the outer wall of one side of the frame 2.

[0026] The weighing and unloading module 5 includes a weighing support platform 51, a hopper fixing platform 55 and a hopper fixing bracket 58 installed on the frame 2. Two weighing components 52 are symmetrically arranged on the weighing support platform 51, and each weighing component 52 includes a weight sensor. Two medicine weighing funnels 54 are arranged under the weighing support platform 51, and the medicine weighing funnels 54 correspond to the weighing components 52 one by one. The medicine weighing funnels 54 are respectively suspended under the corresponding weighing components 52 through weighing suspension rods 53, and the tops of the weighing suspension rods 53 are respectively connected to the weight sensors on the corresponding weighing components 52. The hopper fixing platform 55 is located below the medicine weighing funnel 54, and the hopper fixing platform 55 is equipped with hoppers 56 corresponding to the hoppers 54 one by one, and the hoppers 56 are respectively located directly below the corresponding medicine weighing funnels 54. The hopper fixing bracket 58 is located below the hopper fixing platform 55, and the hopper fixing bracket 58 is provided with a hopper 59. The bottom of the receiving hopper 56 is connected to the top of the lower hopper 59 through a receiving pipe 57 .

[0027] When the granular material in the weighing funnel 54 reaches a preset weight, the corresponding weighing assembly 52 controls the bottom of the weighing funnel 54 to open, and delivers the granular material to the corresponding receiving hopper 56, and then delivers all the granular materials in the receiving hopper 56 to the lower hopper 59 through the receiving pipe 57. A receiving hopper vibrator 551 for promoting the flow of granular materials is provided on the receiving hopper fixed platform 55. A lower hopper vibrator 581 for promoting the flow of granular materials is installed on the lower hopper fixed bracket 58.

[0028] The vibrating unloading module 3 includes a medicine barrel 31, a medicine hopper 32, a funnel medicine flow pipe 33, a medicine bin 34, a medicine bin medicine flow pipe 35, a linear vibrator support frame 36 and a linear conveying hopper 38. The medicine hopper 32 is arranged at the bottom of the medicine barrel 31, and the medicine bin 34 is arranged at one end of the bottom of the medicine hopper 32, and the funnel medicine flow pipe 33 is arranged at the other end of the bottom. The linear vibrator support frame 36 is installed on the frame 2, and two symmetrically distributed linear conveying hoppers 38 are respectively installed on the linear vibrator support frame 36 through two symmetrically distributed linear vibrators 37, and the linear conveying hoppers 38 correspond to the medicine weighing funnel 54 one by one. Two medicine bin medicine flow pipes 35 are arranged at the bottom of the medicine bin 34, and the medicine bin medicine flow pipes 35 correspond to the linear conveying hoppers 38 one by one, and are respectively connected to the corresponding linear conveying hoppers 38. A funnel vibrator 331 is provided on the funnel flow medicine pipe 33, and a medicine bin vibrator 341 is provided at the bottom of the medicine bin 34. Both the funnel vibrator 331 and the medicine bin vibrator 341 are used to promote the flow of granular materials. The discharge ends of the linear conveying hoppers 38 are respectively connected to the top of the corresponding medicine weighing funnels 54, so as to add granular materials less than a predetermined amount into the weighing and unloading module at one time.

[0029] Two slide rails 311 are symmetrically arranged on both sides of the frame 2, and the two slide rails 311 are respectively located on opposite sides of the medicine barrel 31. A slider 312 that slides with the two slide rails 311 is also arranged between the two slide rails 311, and a first barrel clamp 313 is rotatably arranged on the side of the slider 312 close to the medicine barrel 31. A second barrel clamp 314 is also rotatably arranged on the inner wall of the frame 2, and the first barrel clamp 313 and the second barrel clamp 314 clamp the medicine barrel 31. A handwheel 315 is rotatably arranged on the outer wall of the frame 2 away from the weighing and unloading module 5, and the handwheel 315 is fixedly connected to the second barrel clamp 314 coaxially. By moving the slider 312 on the slide rail 311, the medicine barrel 31 can be loosened or clamped, so as to realize the replacement or cleaning of the medicine barrel 31. By rotating the handwheel 315, the medicine barrel 31 can be rotated to realize unloading.

[0030] The feeding and feeding module 4 includes a vibrating loading tray 41, a precision weighing material conveying track 42, a feeding cylinder 43 and a vibrating loading tray bracket 44. The vibrating loading tray bracket 44 is installed on the workbench 1, and the vibrating loading tray 41 is installed on the vibrating loading tray bracket 44. The discharge end of the funnel flow medicine tube 33 is connected to the vibrating loading tray 41, and the discharge end of the vibrating loading tray 41 is connected to the precision weighing material conveying track 42, and the precision weighing material conveying track 42 is respectively connected to the top of each medicine weighing funnel 54. The precision weighing material conveying track 42 is composed of eight groove slideways, arranged side by side, and extends to the top of the medicine weighing funnel 54. There are twenty groups of feeding cylinders 43, which are evenly arranged in a triangle and fixed to the top of the precision weighing material conveying track 42 for precise control of feeding.

[0031] A frame rear door 21 is further provided on the outer wall of the frame 2 away from the weighing and unloading module 5 , and a turntable 22 is provided on the frame rear door 21 , and the frame rear door 21 can be opened or closed by the turntable 22 .

[0032] The utility model uses a vibrating feeding module to add granular materials less than a predetermined amount into a weighing feeding module at one time, and then accurately replenishes the granular materials in the weighing feeding module to a predetermined amount through a feeding and feeding module, thereby improving the weighing accuracy. In addition, the utility model can automatically weigh granular materials, has high production efficiency, reduces harm to the human body, and realizes mass production.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision automatic weighing system for granular materials, characterized in that: It includes a workbench, a frame, a vibration feeding module, a feeding and conveying module, and a weighing feeding module; the frame is installed on the workbench, and the vibration feeding module, the feeding and conveying module, and the weighing feeding module are all installed on the frame; the vibration feeding module is provided with two discharge ports, one of which is connected to the weighing feeding module, and the other is connected to the feeding and conveying module; the feeding and conveying module includes a precision material conveying track, and a feeding cylinder matched with the precision material conveying track, and the feeding and conveying module is connected to the weighing feeding module through the precision material conveying track; The weighing and unloading module is installed on the outer wall of one side of the frame, and the weighing and unloading module includes a weighing support platform and a hopper fixing bracket installed on the frame; a weighing assembly is arranged on the weighing support platform, and the weighing assembly includes a weight sensor; a medicine weighing funnel is suspended on the weighing support platform through a weighing suspension rod, and the top of the weighing suspension rod is connected to the weight sensor; the hopper fixing bracket is located below the medicine weighing funnel, and a hopper is arranged on the hopper fixing bracket; when the granular material in the medicine weighing funnel reaches a preset weight, the weighing assembly controls the bottom of the medicine weighing funnel to open, and the granular material is sent to the hopper; a hopper vibrator is installed on the hopper fixing bracket; The vibration feeding module is arranged in the frame, and the vibration feeding module comprises a medicine loading barrel; a medicine loading funnel is arranged at the bottom of the medicine loading barrel, a medicine bin is arranged at one end of the bottom of the medicine loading funnel, and a funnel flow medicine pipe is arranged at the other end of the bottom, and the discharge end of the funnel flow medicine pipe is connected to the feeding and feeding module; the bottom of the medicine bin is connected to the linear conveying hopper through the medicine bin flow medicine pipe, and the discharge end of the linear conveying hopper is connected to the top of the medicine weighing funnel; a funnel vibrator is arranged on the funnel flow medicine pipe; a medicine bin vibrator is arranged at the bottom of the medicine bin; a linear vibrator is arranged at the bottom of the linear conveying hopper; Two slide rails are symmetrically arranged on both sides of the frame, and the two slide rails are respectively located on opposite sides of the medicine barrel; a slider slidably matched with the two slide rails is also arranged between the two slide rails, and a first barrel clamp is rotatably arranged on the side of the slider close to the medicine barrel; a second barrel clamp is also rotatably arranged on the inner wall of the frame, and the first barrel clamp and the second barrel clamp clamp the medicine barrel; a hand wheel is rotatably arranged on the outer wall of the frame away from the weighing and unloading module, and the hand wheel is fixedly connected to the second barrel clamp coaxially; The feeding and feeding module is arranged in the frame, and the feeding and feeding module further comprises a vibrating feeding tray; the discharge end of the funnel flow medicine tube is connected to the vibrating feeding tray, and the discharge end of the vibrating feeding tray is connected to the precision material conveying track; At least two weighing components are arranged on the weighing support platform, and the weighing funnels corresponding to the weighing components are respectively hoisted under the corresponding weighing components through the weighing suspension rod; a receiving hopper fixing platform installed on the frame is also arranged between the weighing funnel and the lower hopper, and receiving hoppers corresponding to the weighing funnels are installed on the receiving hopper fixing platform, and the receiving hoppers are respectively located directly under the corresponding weighing funnels; the bottoms of the receiving hoppers are connected to the upper part of the lower hopper through receiving pipes; A hopper vibrator is arranged on the hopper fixing platform.

2. A high-precision automatic weighing system for granular materials according to claim 1, characterized in that: A medicine bin flow pipe and a linear conveying hopper corresponding to the medicine weighing funnel are arranged below the medicine bin, the bottom of the medicine bin flow pipe is connected to the corresponding linear conveying hopper, and the discharge ends of the linear conveying hopper are respectively connected to the top of the corresponding medicine weighing funnel.

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