Precise weighing device

Abstract

The utility information relates to the technical field of weighing processing, and discloses a precise weighing device which comprises a rack, a jacking assembly, a carrying assembly and a weighing assembly, the jacking assembly, the carrying assembly and the weighing assembly are all arranged on the rack, the carrying assembly and the weighing assembly are arranged in parallel, and the jacking assembly and the carrying assembly are arranged in parallel. The jacking assembly is arranged on one side of the carrying assembly and one side of the weighing assembly, the jacking assembly comprises a conveying unit and a jacking unit, the jacking unit is arranged in the conveying unit, a vacuum cavity is formed in the rack, and a plurality of limiting rolling wheels are installed at the bottom end of the rack; before weighing, the weighing assembly automatically closes the weighing space to prevent the external environment from influencing the weighing result, so that the weighing repetition precision reaches 0.1 mg, the carrying process is simple, the products are not collided, the reject ratio is reduced, the production rate is greatly improved, and good market application value is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the weighing processing technical field, specifically, especially, a kind of precision weighing device. BACKGROUND

[0002] Weighing is mainly used for 3C electronic products / automobile electronic products / IGBT power products etc., weighing in assembly line, by the weight change of product before and after station, whether electronic product after passing through assembly / glue filling etc.

[0003] The existing weighing device, the precision degree of precision weighing device is described, the core structure of precision degree, cannot be connected with assembly line weighing;At the same time, because the existing weighing device is arranged in assembly line, product before and after process detection, product weighing, cannot judge the weight change of product after passing through station, the uncertainty of product positioning accuracy in product carrying process, so that product cannot be smoothly carried from assembly line tray to product weighing module, also uncertain whether the accuracy is accurate when product is returned from weighing module to assembly line tray, bumping in carrying process, cannot achieve accurate weighing, high defective rate, low productivity.

[0004] Prior art has defects, and needs improvement. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the defects of prior art, the utility model provides a kind of precision weighing device.

[0006] The technical document provided by the utility model, a kind of precision weighing device, including rack, jacking assembly, handling assembly and weighing assembly, the jacking assembly, handling assembly and weighing assembly are all located on the rack, the handling assembly is parallelly arranged with the weighing assembly, the jacking assembly is located in one side of the handling assembly and the weighing assembly, the jacking assembly includes conveying unit and jacking unit, the jacking unit is located in the conveying unit, the rack is equipped with vacuum cavity, and multiple limit rollers are installed at the bottom end of the rack.

[0007] Preferably, the jacking assembly includes jacking unit and assembly line unit, and the jacking unit is located in the assembly line unit.

[0008] Preferably, the jacking unit comprises a jacking carrier plate, a jacking support, a jacking cylinder, a jacking motor, a plurality of jacking shafts, a plurality of sliding sleeves, a jacking moving plate, a jacking support plate and a jacking fixer, the jacking carrier plate is arranged in the assembly line unit, the jacking support is mounted on the jacking carrier plate, a motor base is mounted on one side of the jacking support, a fixed end of the jacking cylinder is mounted in the jacking support, a plurality of sliding sleeves are mounted in the jacking support at intervals, a plurality of jacking shafts are arranged through the plurality of sliding sleeves respectively, and the top ends of the plurality of jacking shafts are connected with the lower surface of the jacking moving plate, one end of a jacking slide rod is connected with the output end of the jacking cylinder, the other end of the jacking slide rod is vertically upwardly arranged through the jacking support and connected with the middle part of the lower surface of the jacking moving plate, the jacking support plate is mounted on the upper surface of the jacking moving plate, the jacking motor is mounted on the motor base, the jacking fixer is mounted on the output end of the jacking motor, and the jacking fixer is arranged on one side of the jacking support plate.

[0009] Preferably, the assembly line unit comprises a first sliding rail, a second sliding rail, a sliding carrier plate, a first sensor, a second sensor and a stopper, the first sliding rail and the second sliding rail are oppositely arranged, the sliding carrier plate is arranged on the first sliding rail and the second sliding rail, the first sensor and the second sensor are respectively mounted on the side surfaces of the first sliding rail and the second sliding rail, and the stopper is arranged on the middle part of one side surface of the first sliding rail.

[0010] Preferably, the carrying assembly comprises a carrying frame, a first carrying unit, a second carrying unit, a carrying rail and a clamping unit, the first carrying unit and the carrying rail are arranged in parallel and are both arranged on the carrying frame, the bottom ends of the second carrying unit are arranged on the first carrying unit and the carrying rail through a first carrying sliding block and a second carrying sliding block respectively, and the clamping unit is arranged on the second carrying unit.

[0011] Preferably, the clamping unit comprises a clamping support, a first sliding cylinder, a sliding carrier, a second sliding cylinder, a clamping rotator, a rotating support, a clamping cylinder and a clamping jaw, one end of the clamping support is arranged on the second carrying unit, a fixed end of the first sliding cylinder is mounted on one side surface of the clamping support, the output end of the first sliding cylinder is mounted with the sliding carrier, a fixed end of the second sliding cylinder is mounted on the sliding carrier, the bottom end of the sliding carrier is mounted with the clamping rotator, the output end of the second sliding cylinder is connected with the clamping rotator, the lower end of the clamping rotator is mounted with the rotating support, the rotating support is mounted with the clamping cylinder, and the output end of the clamping cylinder is mounted with the clamping jaw.

[0012] Preferably, the weighing assembly comprises a weighing electronic device, a weighing motor, a weighing support, a weighing lifting shaft, a weighing track, a weighing sliding frame, a first track, a second track, a weighing load plate and a weighing cylinder, the weighing electronic device and the weighing support are arranged in a weighing frame, one side of the weighing support is provided with the weighing track, a bottom end of the weighing track is provided with a weighing base, a fixed end of the weighing motor is arranged on the weighing base, an output end of the weighing motor is connected with one end of the weighing lifting shaft, the other end of the weighing lifting shaft is connected with the bottom end of the weighing sliding frame vertically upwards, the weighing sliding frame is arranged in the weighing track through a weighing sliding block on one side, the first track and the second track are arranged on the other side of the weighing sliding frame in parallel, the other ends of the first track and the second track are connected with the lower surface of the weighing load plate, a through hole is arranged in the middle of the weighing load plate, the weighing cylinder is arranged on one side of the through hole, and the top end of the weighing electronic device is arranged in the through hole of the weighing load plate.

[0013] Preferably, a sealing cavity is arranged on the frame, and the weighing assembly is arranged in the sealing cavity.

[0014] Compared with the prior art, the utility model discloses a jacking assembly, a carrying assembly and a weighing assembly, the jacking assembly realizes that the product needing to be weighed is before and after the flow line, and whether the product after the process meets the quality requirement is judged through how much the weight of the product before and after changes, the carrying assembly can realize mutual grabbing and placing without the position relation of the camera measurement, the weighing assembly is automatically sealed before weighing, the weighing result is prevented from being influenced by the external environment, the weighing repeatability precision is 0.1mg, the buffer cylinder is arranged in the weighing assembly, the falling of the product is sealed to prevent the weighing electronic device from being damaged, the weighing is accurate, the carrying process is simple, the product is not bumped, the defective rate is reduced, the production rate is greatly improved, and the utility model has good market application value. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is overall structure schematic view of the utility model;

[0016] Figure 2 It is jacking assembly structure schematic view of the utility model;

[0017] Figure 3 It is jacking unit structure schematic view of the utility model;

[0018] Figure 4 It is carrying assembly structure schematic view of the utility model;

[0019] Figure 5 It is clamping unit structure schematic view of the utility model;

[0020] Figure 6 It is weighing assembly structure schematic view of the utility model.

[0021] Mark: rack 1, jacking assembly 2, carrying assembly 3, weighing assembly 4, multiple limiting rollers 5, jacking unit 21, assembly line unit 22, jacking loading plate 211, jacking support 212, jacking cylinder 213, jacking motor 214, multiple jacking shafts 215, multiple sliding sleeves 216, jacking moving plate 217, jacking support plate 218, jacking fixer 219, carrying frame 31, first carrying unit 32, second carrying unit 33, carrying rail 34, clamping unit 35, clamping support 351, first sliding cylinder 352, sliding loading frame 353, second sliding cylinder 354, clamping rotator 355, rotating support 356, clamping cylinder 357, clamping clamping jaw 358, weighing electronics 41, weighing motor 42, weighing support 43, weighing rail 44, weighing sliding frame 45, first rail 46, second rail 47, weighing loading plate 48, weighing cylinder 49. DETAILED DESCRIPTION

[0022] It should be noted that the above technical features continue to combine with each other to form various embodiments not listed above, which are considered to be within the scope of the description of the utility model; and, for those skilled in the art, can be improved or changed according to the above description, and all these improvements and changes should belong to the protection scope of the utility model claims.

[0023] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in combination with the drawings and specific embodiments. The preferred embodiments of the utility model are shown in the drawings. However, the utility model can be realized in many different forms, and is not limited to the embodiments described in the specification. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or a middle element can exist at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the specification are only for illustrative purposes.

[0025] Unless otherwise defined, all technical and scientific terms used in the specification are the same as the meanings understood by those skilled in the art belonging to the technical field of the utility model. The terms used in the specification of the utility model are only for the purpose of describing the specific embodiments, not for limiting the utility model.

[0026] The utility model will be described in detail below in combination with the drawings.

[0027] As Figures 1-6 shown: a precision weighing device, comprising a rack 1, a jacking assembly 2, a carrying assembly 3 and a weighing assembly 4, the jacking assembly 2, the carrying assembly 3 and the weighing assembly 4 are all arranged on the rack 1, the carrying assembly 3 is arranged in parallel with the weighing assembly 4, the jacking assembly 2 is arranged on one side of the carrying assembly 3 and the weighing assembly 4, the jacking assembly 2 comprises a conveying unit and a jacking unit 21, the jacking unit 21 is arranged in the conveying unit, a vacuum cavity is arranged in the rack 1, and a plurality of limiting rollers 5 are mounted at the bottom end of the rack 1.

[0028] It should be noted that the jacking assembly 2 is used for lifting the products to be weighed on the assembly line, and then the products are clamped and carried by the carrying assembly 3, the carrying assembly 3 carries the products to be weighed into the weighing assembly 4, after the weighing assembly 4 completes the weighing, the carrying assembly 3 clamps and carries the products after the weighing to the jacking assembly 2 again, the jacking assembly 2 falls back, so that the products after the weighing flow out of the assembly line, and the process is circulated in turn.

[0029] Preferably, the jacking assembly 2 comprises a jacking unit 21 and an assembly line unit 22, and the jacking unit 21 is arranged in the assembly line unit 22.

[0030] It should be noted that the jacking unit 21 is used for lifting the products flowing into the assembly line unit 22, and then the products are carried and weighed by the carrying assembly 3, after the weighing is completed, the products are carried by the carrying assembly 3 again and put into the assembly line unit 22, the jacking unit 21 falls, so that the products flow into the next process from the assembly line unit 22.

[0031] Preferably, the jacking unit 21 comprises a jacking carrier plate 211, a jacking support 212, a jacking cylinder 213, a jacking motor 214, a plurality of jacking shafts 215, a plurality of sliding sleeves 216, a jacking moving plate 217, a jacking support plate 218 and a jacking fixer 219. The jacking carrier plate 211 is arranged in the assembly line unit 22. The jacking support 212 is arranged on the jacking carrier plate 211. A motor base is arranged on one side of the jacking support 212. The fixed end of the jacking cylinder 213 is arranged in the jacking support 212. A plurality of sliding sleeves 216 are arranged in the jacking support 212 at intervals. The plurality of jacking shafts 215 are arranged through the plurality of sliding sleeves 216 respectively. The top ends of the plurality of jacking shafts 215 are connected to the lower surface of the jacking moving plate 217. The output end of the jacking cylinder 213 is connected to one end of a jacking slide rod. The other end of the jacking slide rod is vertically upwardly arranged through the jacking support 212 and connected to the middle part of the lower surface of the jacking moving plate 217. The jacking support plate 218 is arranged on the upper surface of the jacking moving plate 217. The motor base is arranged on the jacking motor 214. The output end of the jacking motor 214 is arranged on the jacking fixer 219. The jacking fixer 219 is arranged on one side of the jacking support plate 218.

[0032] It should be noted that the jacking cylinder 213 drives the jacking moving plate 217 to move up and down through the jacking slide rod. While the jacking moving plate 217 moves up and down, the plurality of jacking shafts 215 slide up and down in the plurality of sliding sleeves 216. While the jacking moving plate 217 moves up and down, the jacking support plate 218 drives the product carrier plate on the assembly line unit 22 to be lifted, waiting to be clamped and carried by the carrying assembly 3. The jacking motor 214 drives the jacking fixer 219 to block the product carrier plate on the assembly line unit 22 from flowing on the assembly line. When the product carrier plate on the assembly line unit 22 moves to the position of the jacking fixer 219, the fixer is lifted to block the product carrier plate on the assembly line unit 22 from flowing, so as to realize the lifting and falling of the product carrier plate by the jacking cylinder 213 driving the jacking moving plate 217. After the product is weighed and placed on the product carrier plate, the jacking fixer 219 and the jacking moving plate 217 are lowered at the same time. At this time, the product carrier plate with the weighed product enters the next process through the driving of the assembly line unit 22.

[0033] Preferably, the assembly line unit 22 comprises a first sliding rail, a second sliding rail, a sliding carrier plate, a first inductor, a second inductor and a stopper. The first sliding rail and the second sliding rail are oppositely arranged. The sliding carrier plate is arranged on the first sliding rail and the second sliding rail. The first inductor and the second inductor are arranged on the side surfaces of the first sliding rail and the second sliding rail respectively. The stopper is arranged on the middle part of one side surface of the first sliding rail.

[0034] It should be noted that the first sliding rail and the second sliding rail are used to drive the sliding tray to slide, the first sensor and the second sensor are used to sense the weight of the product in the tray, and the stopper is used to limit the height of the lifting unit 21 after lifting the sliding tray, so as to prevent the sliding tray from being lifted too high by the lifting unit 21, and from falling below the first sliding rail and the second sliding rail when descending, thereby causing the offset of the sliding tray and causing damage.

[0035] Preferably, the conveying assembly 3 comprises a conveying frame 31, a first conveying unit 32, a second conveying unit 33, a conveying rail 34, and a clamping unit 35. The first conveying unit 32 and the conveying rail 34 are arranged in parallel and are both arranged on the conveying frame 31. The bottom end of the second conveying unit 33 is arranged on the first conveying unit 32 and the conveying rail 34 through a first conveying sliding block and a second conveying sliding block, respectively. The clamping unit 35 is arranged on the second conveying unit 33.

[0036] It should be noted that the first conveying unit 32 moves forward and backward while driving the second conveying unit 33 to move forward and backward on the conveying rail 34. The second conveying unit 33 moves forward and backward while driving the clamping unit 35 to move. The second conveying unit 33 can drive the clamping unit 35 to move up and down, so as to realize the clamping and placing of the clamping unit 35 to the product.

[0037] Preferably, the clamping unit 35 comprises a clamping bracket 351, a first sliding cylinder 352, a sliding carrier 353, a second sliding cylinder 354, a clamping rotator 355, a rotating bracket 356, a clamping cylinder 357, and a clamping jaw 358. One end of the clamping bracket 351 is arranged on the second conveying unit 33. The fixed end of the first sliding cylinder 352 is arranged on one side of the clamping bracket 351. The output end of the first sliding cylinder 352 is arranged with the sliding carrier 353. The fixed end of the second sliding cylinder 354 is arranged on the sliding carrier 353. The bottom end of the sliding carrier 353 is arranged with the clamping rotator 355. The output end of the second sliding cylinder 354 is connected with the clamping rotator 355. The lower end of the clamping rotator 355 is arranged with the rotating bracket 356. The rotating bracket 356 is arranged with the clamping cylinder 357. The output end of the clamping cylinder 357 is arranged with the clamping jaw 358.

[0038] It should be noted that the first sliding cylinder 352 drives the sliding carrier 353 to move up and down, and the sliding carrier 353 drives the second sliding cylinder 354 to move up and down while moving up and down, and the second sliding cylinder 354 drives the clamping rotary device 355 to rotate, and the clamping rotary device 355 can rotate 360°, and can realize 360° rotation of the clamping cylinder 357 to drive the clamping jaw 358 to clamp the product for weighing;

[0039] Further, the first sliding cylinder 352 and the second sliding cylinder 354 can be provided as a sliding motor, a lifting motor, a rotary motor, etc., as long as the function can be realized, and the above technical features continue to be combined with each other to form various embodiments not listed above.

[0040] Further, the sliding carrier 353 is further provided with a product detector, which can be used to detect whether there is a product to be weighed below, so as to facilitate the second sliding cylinder 354 to drive the clamping rotary device 355 to realize the clamping and placing of the product by the clamping jaw 358.

[0041] Preferably, the weighing assembly 4 comprises a weighing electronic device 41, a weighing motor 42, a weighing support 43, a weighing lifting shaft, a weighing track 44, a weighing sliding frame 45, a first track 46, a second track 47, a weighing load plate 48 and a weighing cylinder 49. The weighing electronic device 41 and the weighing support 43 are arranged in the weighing frame. One side of the weighing support 43 is provided with the weighing track 44. The bottom end of the weighing track 44 is provided with a weighing base. The fixed end of the weighing motor 42 is arranged on the weighing base. One end of the output end of the weighing motor 42 is connected with the weighing lifting shaft. The other end of the weighing lifting shaft is connected with the bottom end of the weighing sliding frame 45 vertically upward. One side of the weighing sliding frame 45 is arranged in the weighing track 44 through a weighing sliding block. The other side of the weighing sliding frame 45 is provided with one end of the first track 46 and the second track 47 in parallel. The other end of the first track 46 and the second track 47 is connected with the lower surface of the weighing load plate 48. A through hole is arranged in the middle of the weighing load plate 48. The through hole is provided with the weighing cylinder 49. The top end of the weighing electronic device 41 is arranged in the through hole of the weighing load plate 48.

[0042] It needs to be explained that when the carrying assembly 3 clamps and places the product to be weighed on the weighing electromechanical device 41, the weighing cylinder 49 arranged on the side of the weighing electromechanical device 41 is always in an open state, which plays a buffering role in the process of placing the product, avoids that the product is placed on the weighing electromechanical device 41 too violently to cause inaccurate weighing, and when the weighing is completed, the weighing motor 42 drives the weighing sliding frame 45 to slide on the first track 46 and the second track 47, so that the weighing load plate 48 rises to make the weighed product separate from the weighing electromechanical device 41, thereby cooperating with the clamping and placing of the clamping jaw 358 on the carrying assembly 3 to enter the next process on the assembly line unit 22.

[0043] Preferably, the rack 1 is further provided with a sealed cavity, the weighing assembly 4 is installed in the sealed cavity, and the turnover unit is installed on the sealed cavity.

[0044] It needs to be explained that the turnover unit can open the top cover of the sealed cavity, automatically seals the weighing space before weighing, prevents the external environment from affecting the weighing result, makes the repeated weighing precision 0.1 mg, and opens the sealed cavity through the turnover unit during weighing, so that the weighed product is placed on the weighing assembly 4 in the sealed cavity for weighing.

[0045] It needs to be explained that each of the above technical features continues to be combined, various embodiments not listed above are formed, and are regarded as the range disclosed in the description of the utility model; and for ordinary skilled persons in the art, the above description can be improved or changed, and all these improvements and changes should belong to the protection range of the attached claims of the utility model.

Claims

1. A precision weighing apparatus, characterized by, Including frame, jacking assembly, handling assembly and weighing assembly, the jacking assembly, handling assembly and weighing assembly are all arranged on the frame, the handling assembly and the weighing assembly are arranged in parallel, the jacking assembly is arranged on one side of the handling assembly and the weighing assembly, the jacking assembly includes conveying unit and jacking unit, the jacking unit is arranged in the conveying unit, a vacuum cavity is arranged in the frame, and a plurality of limiting rollers are arranged at the bottom end of the frame.

2. The precision weighing apparatus of claim 1, wherein The jacking assembly includes jacking unit and assembly line unit, and the jacking unit is arranged in the assembly line unit.

3. A precision weighing apparatus according to claim 2, wherein The jacking unit includes jacking carrier plate, jacking support, jacking cylinder, jacking motor, a plurality of jacking shafts, a plurality of sliding sleeves, jacking moving plate, jacking support plate and jacking fixer, the jacking carrier plate is arranged in the assembly line unit, the jacking support is arranged on the jacking carrier plate, the motor base is arranged on one side of the jacking support, the fixed end of the jacking cylinder is arranged in the jacking support, a plurality of sliding sleeves are arranged in the jacking support at intervals, a plurality of jacking shafts are arranged through the plurality of sliding sleeves respectively, and the top ends of the plurality of jacking shafts are connected with the lower surface of the jacking moving plate, the output end of the jacking cylinder is connected with one end of the jacking slide rod, the other end of the jacking slide rod is vertically upwardly arranged through the jacking support and connected with the middle part of the lower surface of the jacking moving plate, the jacking support plate is arranged on the upper surface of the jacking moving plate, the jacking motor is arranged on the motor base, the jacking fixer is arranged on the output end of the jacking motor, and the jacking fixer is arranged on one side of the jacking support plate.

4. The precision weighing apparatus of claim 2, wherein The assembly line unit includes first sliding rail, second sliding rail, sliding carrier plate, first inductor, second inductor and limiter, the first sliding rail and the second sliding rail are arranged oppositely, the sliding carrier plate is arranged on the first sliding rail and the second sliding rail, the first inductor and the second inductor are arranged on the side surfaces of the first sliding rail and the second sliding rail respectively, and the limiter is arranged on the middle part of the side surface of the first sliding rail.

5. The precision weighing apparatus of claim 1, wherein, The handling assembly includes handling frame, first handling unit, second handling unit, handling rail and clamping unit, the first handling unit and the handling rail are arranged in parallel and are both arranged on the handling frame, the bottom ends of the second handling unit are arranged on the first handling unit and the handling rail through the first handling sliding block and the second handling sliding block respectively, and the clamping unit is arranged on the second handling unit.

6. A precision weighing apparatus according to claim 5, wherein The clamping unit comprises a clamping support, a first sliding cylinder, a sliding carrier, a second sliding cylinder, a clamping rotator, a rotating support, a clamping cylinder and a clamping jaw, one end of the clamping support is arranged on the second carrying unit, the fixed end of the first sliding cylinder is arranged on one side surface of the clamping support, the output end of the first sliding cylinder is provided with the sliding carrier, the fixed end of the second sliding cylinder is arranged on the sliding carrier, the bottom end of the sliding carrier is provided with the clamping rotator, the output end of the second sliding cylinder is connected with the clamping rotator, the lower end of the clamping rotator is provided with the rotating support, the rotating support is arranged in the clamping cylinder, and the output end of the clamping cylinder is provided with the clamping jaw.

7. The precision weighing apparatus of claim 1, wherein The weighing assembly comprises a weighing electronic device, a weighing motor, a weighing support, a weighing lifting shaft, a weighing track, a weighing sliding frame, a first track, a second track, a weighing load plate and a weighing cylinder, the weighing electronic device and the weighing support are arranged in the weighing frame, one side surface of the weighing support is provided with the weighing track, the bottom end of the weighing track is provided with a weighing base, the fixed end of the weighing motor is arranged on the weighing base, the output end of the weighing motor is connected with one end of the weighing lifting shaft, the other end of the weighing lifting shaft is connected with the bottom end of the weighing sliding frame vertically upwards, the weighing sliding frame is arranged in the weighing track through a weighing sliding block on one side surface, the other side surface of the weighing sliding frame is provided in parallel with one end of the first track and the second track, the other ends of the first track and the second track are connected with the lower surface of the weighing load plate, a through hole is arranged in the middle of the weighing load plate, the weighing cylinder is arranged on one side of the through hole, and the top end of the weighing electronic device is arranged in the through hole of the weighing load plate.

8. The precision weighing apparatus of claim 1, wherein, The rack is further provided with a sealed cavity, the weighing assembly is arranged in the sealed cavity, and the turnover unit is arranged on the sealed cavity.

Images