Powder weighing device
Patent Information
- Application Number
- CN202522388833.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-11-11
AI Technical Summary
[0003]但是现有的塑粉称重工具的自动化程度较低，在称重前，必须要将储存塑粉用的容器手动放置到指定位置处并手动操作夹具以完成容器的定位，然后再进行灌装和称重，灌装过程中还必须时刻关注塑粉重量，并在达到设定值后及时手动切断塑粉的灌装，但是由于手动操作难免存在滞后性，导致称重误差较大，所以称重精度较低；称重结束后还要将压盖安装到容器开口处以完成封装，随后再次手动操作夹具以松开容器，最后将装有塑粉的容器手动移走，因此操作步骤较为繁琐，工作效率较低，劳动强度较大，有待于进一步改进
[0010]与现有技术相比，本实用新型的优点在于：本实用新型有效提高了自动化程度，能将储料罐自动移至塑粉灌装位置处并依次完成自动定位、自动称重和自动断料，无需借助人工手动操作，进而消除了滞后性以减小了称重误差，从而提高了称重精度；而且还能在称重结束后自动松开和自动移出储料罐，进而简化了操作步骤以提高了工作效率并降低了劳动强度。
Smart Images
Figure CN224802509U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a plastic powder weighing device. Background Technology
[0002] Plastic powder is a polymer compound formed by the polymerization of monomer raw materials through synthesis or condensation reaction. The production process of plastic powder mainly includes raw material preparation, polymerization reaction, mixing and plasticizing, molding and processing. After processing, plastic powder is also quantitatively packaged for storage and transportation. The weight of plastic powder is controlled by weighing tools.
[0003] However, the existing powder coating weighing tools have a low degree of automation. Before weighing, the container for storing powder coating must be manually placed in the designated position and the clamp must be manually operated to position the container before filling and weighing. During the filling process, the weight of the powder coating must be monitored at all times, and the filling must be manually cut off in time when the set value is reached. However, due to the inevitable lag in manual operation, the weighing error is large, resulting in low weighing accuracy. After weighing, the cap must be installed on the container opening to complete the sealing. Then, the clamp must be manually operated again to release the container. Finally, the container containing the powder coating must be manually removed. Therefore, the operation steps are cumbersome, the work efficiency is low, and the labor intensity is high, which needs further improvement. Utility Model Content
[0004] In view of the current state of the prior art, the technical problem to be solved by this utility model is to provide a plastic powder weighing device that effectively improves the degree of automation to improve weighing accuracy, simplifies the operation steps to improve work efficiency and reduce labor intensity.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a plastic powder weighing device, characterized in that it includes a frame and a conveying component and a weighing component arranged on the top of the frame and cooperating with each other; The conveying assembly includes two transversely and rotatably connected drive shafts that are symmetrically arranged in parallel on the frame, and two conveying units that are symmetrically distributed between the two drive shafts; each conveying unit includes two pulleys that are concentrically fixed on the two drive shafts and a belt that is fitted between the two pulleys. The weighing assembly includes a support beam that is horizontally fixed on the frame and arranged in a front-to-back direction, and two weighing units that are arranged on the support beam and symmetrically distributed in front and back. The weighing unit includes a side frame fixed on the support beam, an alignment cylinder fixed on the outside of the side frame, a movable plate that is vertically and movably connected to the inside of the side frame to have a front-to-back translation function, and a weighing module arranged on the movable plate. The telescopic end of the alignment cylinder passes horizontally through the side frame and is fixed on the movable plate. The weighing module includes a first lifting cylinder fixed inside the movable plate, a lifting plate horizontally fixed on the telescopic end of the first lifting cylinder, two vertical and rotatable alignment rollers connected to the top of the lifting plate and symmetrically arranged on the left and right, a support block located above the lifting plate, and two weighing devices fixed to the bottom of the lifting plate and symmetrically arranged on the left and right sides of the first lifting cylinder. The telescopic end of the first lifting cylinder is vertically upward, and the telescopic ends of the two weighing devices are both vertically upward through the lifting plate and fixed to the bottom of the support block. Each of the two support blocks has a symmetrically distributed limiting notch on its top opposite side edge, and each of the two limiting notches has a concentric limiting arc surface on its inner side wall.
[0006] Preferably, a lifting mechanism is provided between the two weighing units. The lifting mechanism includes a guide beam that is horizontally fixed to the top of the support beam and perpendicular to the support beam, a lifting plate and a traction plate that are horizontally arranged above the guide beam and below the support beam, a second lifting cylinder that is fixed to the middle of the bottom of the support beam, and traction columns that are vertically inserted and connected in the guide beam and symmetrically arranged on the left and right. The telescopic end of the second lifting cylinder is vertically downward and fixed to the traction plate. The upper and lower ends of each traction column are fixed to the lifting plate and the traction plate, respectively.
[0007] Preferably, the lifting mechanism further includes a pneumatic finger fixed to the bottom of the lifting plate and two clamping blocks movably connected to the top of the lifting plate, each having the function of left and right translation and arranged symmetrically on the left and right, with the two grippers of the pneumatic finger fixed to the two clamping blocks respectively.
[0008] Preferably, the lifting mechanism further includes two vertically inserted square columns that are movably interposed in the lifting plate and located below the two clamping blocks respectively. The upper ends of the two square columns are fixed to the bottom of the two clamping blocks respectively, and the lower ends of the two square columns extend below the lifting plate. The two grippers of the pneumatic finger are fixed to the lower ends of the two square columns respectively.
[0009] Preferably, a positioning arc surface is formed on the opposite outer wall of each of the two clamping blocks.
[0010] Compared with the prior art, the advantages of this utility model are as follows: This utility model effectively improves the degree of automation, and can automatically move the storage tank to the plastic powder filling position and complete the automatic positioning, automatic weighing and automatic material cutting in sequence without the need for manual operation, thereby eliminating lag and reducing weighing error, thus improving weighing accuracy; moreover, it can automatically release and remove the storage tank after weighing, thereby simplifying the operation steps, improving work efficiency and reducing labor intensity. Attached Figure Description
[0011] The above and other features, advantages, and aspects of the embodiments of this application will become more apparent when taken in conjunction with the accompanying drawings and the following detailed description; throughout the drawings, the same or similar reference numerals denote the same or similar elements; it should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale; in the drawings: Figure 1 This is a structural diagram of the left front side of this utility model; Figure 2 This is an exploded view of the left rear side of the weighing component of this utility model. Detailed Implementation
[0012] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0013] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.
[0014] like Figures 1-2 As shown, a plastic powder weighing device includes a frame 1 and a conveying component 2 and a weighing component 3 disposed on the top of the frame 1 and cooperating with each other. The conveying assembly 2 includes two transversely and rotatably connected drive shafts 21 that are symmetrically and parallelly arranged on the frame 1, and two conveying units that are located between the two drive shafts 21 and symmetrically distributed front and back; the conveying unit includes two pulleys 22 that are concentrically mounted and fixed on the two drive shafts 21, and a belt 23 mounted between the two pulleys 22. The weighing assembly 3 includes a support beam 31 that is horizontally fixed on the frame 1 and arranged in a front-to-back direction, and two weighing units that are arranged on the support beam 31 and symmetrically distributed in front and back. The weighing unit includes a side frame 32 fixed on the support beam 31, an alignment cylinder 33 fixed on the outside of the side frame 32, a movable plate 34 that is vertically and movably connected to the inside of the side frame 32 to have a front-to-back translation function, and a weighing module arranged on the movable plate 34. The telescopic end of the alignment cylinder 33 passes horizontally through the side frame 32 and is fixed on the movable plate 34. The weighing module includes a first lifting cylinder 35 fixed inside the movable plate 34, a lifting plate 36 horizontally fixed on the telescopic end of the first lifting cylinder 35, two vertical and rotatable alignment rollers 37 connected to the top of the lifting plate 36 and symmetrically arranged on the left and right, a support block 39 located above the lifting plate 36, and two weighing devices 38 fixed to the bottom of the lifting plate 36 and symmetrically arranged on the left and right sides of the first lifting cylinder 35. The telescopic end of the first lifting cylinder 35 is vertically upward, and the telescopic ends of the two weighing devices 38 are both vertically upward through the lifting plate 36 and fixed to the bottom of the support block 39. Each of the two support blocks 39 has a symmetrically distributed limiting notch 391 on its top opposite side edge, and a concentric limiting arc surface 392 is formed on the inner side wall of each of the two limiting notches 391.
[0015] A lifting mechanism is also provided between the two weighing units. The lifting mechanism includes a guide beam 310 that is horizontally fixed to the top of the support beam 31 and perpendicular to the support beam 31; a lifting plate 312 and a traction plate 313 that are horizontally arranged above the guide beam 310 and below the support beam 31, respectively; a second lifting cylinder 314 that is fixed to the middle of the bottom of the support beam 31; and traction columns 311 that are vertically inserted and connected in the guide beam 310 and symmetrically arranged on the left and right. The telescopic end of the second lifting cylinder 314 is vertically downward and fixed to the traction plate 313. The upper and lower ends of each traction column 311 are fixed to the lifting plate 312 and the traction plate 313, respectively.
[0016] The lifting mechanism also includes a pneumatic finger 317 fixed to the bottom of the lifting plate 312, and two clamping blocks 315 movably connected to the top of the lifting plate 312, each having the function of left and right translation and symmetrically arranged. The two grippers of the pneumatic finger 317 are respectively fixed to the two clamping blocks 315.
[0017] The lifting mechanism also includes two vertically inserted square columns 316 that are movably interposed in the lifting plate 312 and located below the two clamping blocks 315 respectively. The upper ends of the two square columns 316 are fixed to the bottom of the two clamping blocks 315 respectively, and the lower ends of the two square columns 316 extend below the lifting plate 312. The two grippers of the pneumatic fingers 317 are fixed to the lower ends of the two square columns 316 respectively.
[0018] Each of the two clamping blocks 315 has a positioning arc surface 3151 that is concentrically arranged on the outer wall of the opposite side.
[0019] Working principle: A geared motor is installed at the front or rear of the frame 1, and the rotating shaft of the geared motor is concentrically fixed at the front or rear end of one of the transmission shafts 21 in the conveying assembly 2. After the geared motor is started to rotate its rotating shaft, it will drive the belts 23 in the two conveying units to run through the two transmission shafts 21.
[0020] An empty storage tank 4 is placed flat between the upper parts of two belts 23. During operation, the two belts 23 will drive the storage tank 4 to move to the left or right until the storage tank 4 is moved between the two weighing units in the weighing assembly 3. Then, the reduction motor is turned off first, and then the extension and retraction ends of the alignment cylinders 33 in the two weighing units are simultaneously driven to extend outward, thereby driving the moving plates 34 in the two weighing units to move towards the storage tank 4 until the two alignment rollers 37 in each weighing module move synchronously. When each alignment roller 37 is in contact with the outer circumference of the storage tank 4, the storage tank 4 will be pushed by the four alignment rollers 37 at the same time, thereby achieving the centering effect so that the storage tank 4 is directly above the support block 39 in the two weighing modules.
[0021] Next, the telescopic ends of the two alignment cylinders 33 are simultaneously driven to retract slightly inward so as to drive each alignment roller 37 to move in the opposite direction, thereby causing each alignment roller 37 to move slightly away from the outer circumference of the storage tank 4.
[0022] Next, the telescopic ends of the first lifting cylinders 35 in both weighing units are simultaneously extended outward to drive the two lifting plates 36 to move upward, thereby driving the two support blocks 39 and the two weighing devices 38 to move synchronously. This causes the two support blocks 39 to gradually lift the storage tank 4 until the bottom of the storage tank 4 leaves the two belts 23. The telescopic ends of the two weighing devices 38 pass vertically upward through the lifting plates 36 and are fixed to the bottom of the support blocks 39. At this time, the front and rear sides of the bottom of the storage tank 4 extend into the limiting notches 391 on the two support blocks 39 to prevent the storage tank 4 from shifting forward or backward. After the bottom of the storage tank 4 leaves the two belts 23, the weight of the storage tank 4 is completely transferred to the telescopic ends of each weighing device 38 through the two support blocks 39.
[0023] Plastic powder is poured into the storage tank 4 through the discharge valve. As the plastic powder is continuously poured in, the total weight of the storage tank 4 and the plastic powder increases continuously and is transmitted in real time to the telescopic end of each weighing device 38. The internal calculation module of each weighing device 38 calculates the total weight of the storage tank 4 and the plastic powder in real time and transmits the data to the display connected to it. The discharge valve and each weighing device 38 are connected to an external control system. When the weight of the plastic powder reaches the set value, the external control system will automatically close the discharge valve to stop the input of plastic powder. The above principle is the existing technology.
[0024] After weighing, the telescopic ends of the two first lifting cylinders 35 are simultaneously driven to retract inward to move the storage tank 4 downward in the same way until the bottom of the storage tank 4 returns to the two belts 23. Then, the telescopic ends of the second lifting cylinder 314 in the lifting mechanism are driven to retract inward to move the traction plate 313 upward. Then, with the help of the two traction columns 311, the lifting plate 312 is moved synchronously, so that the lifting plate 312 slowly lifts the storage tank 4 containing plastic powder. Then, the two grippers of the pneumatic fingers 317 are driven to move together to move the two clamping blocks 315 towards the storage tank 4 with the help of the two square columns 316. Until the two clamping blocks 315 clamp the storage tank 4 with their own positioning arc surface 3151, then a can lid can be taken out and pressed down to complete the sealing.
[0025] After the can lid is installed, the telescopic end of the second lifting cylinder 314 is extended outward to move the storage tank 4 down in the same way until the bottom of the storage tank 4 returns to the two belts 23; the reduction motor is started again to restore the operation of the two belts 23, thereby driving the storage tank 4, which has completed weighing and sealing, to continue to move to the left or right.
[0026] This invention effectively improves the level of automation, enabling the storage tank 4 to be automatically moved to the powder filling position and automatically positioned, weighed, and cut off in sequence without the need for manual operation. This eliminates lag and reduces weighing errors, thereby improving weighing accuracy. Furthermore, it can automatically release and remove the storage tank 4 after weighing, simplifying the operation steps, improving work efficiency, and reducing labor intensity.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A powder coating weighing device, characterized in that, Includes a frame and conveying and weighing components located on top of the frame and working together; The conveying assembly includes two transversely and rotatably connected drive shafts that are symmetrically arranged in parallel on the frame, and two conveying units that are symmetrically distributed between the two drive shafts; each conveying unit includes two pulleys that are concentrically fixed on the two drive shafts and a belt that is fitted between the two pulleys. The weighing assembly includes a support beam that is horizontally fixed on the frame and arranged in a front-to-back direction, and two weighing units that are arranged on the support beam and symmetrically distributed in front and back. The weighing unit includes a side frame fixed on the support beam, an alignment cylinder fixed on the outside of the side frame, a movable plate that is vertically and movably connected to the inside of the side frame to have a front-to-back translation function, and a weighing module arranged on the movable plate. The telescopic end of the alignment cylinder passes horizontally through the side frame and is fixed on the movable plate. The weighing module includes a first lifting cylinder fixed inside the movable plate, a lifting plate horizontally fixed on the telescopic end of the first lifting cylinder, two vertical and rotatable alignment rollers connected to the top of the lifting plate and symmetrically arranged on the left and right, a support block located above the lifting plate, and two weighing devices fixed to the bottom of the lifting plate and symmetrically arranged on the left and right sides of the first lifting cylinder. The telescopic end of the first lifting cylinder is vertically upward, and the telescopic ends of the two weighing devices are both vertically upward through the lifting plate and fixed to the bottom of the support block. Each of the two support blocks has a symmetrically distributed limiting notch on its top opposite side edge, and each of the two limiting notches has a concentric limiting arc surface on its inner side wall.
2. The powder coating weighing device according to claim 1, characterized in that, A lifting mechanism is also provided between the two weighing units. The lifting mechanism includes a guide beam that is horizontally fixed to the top of the support beam and perpendicular to the support beam, a lifting plate and a traction plate that are horizontally arranged above the guide beam and below the support beam, a second lifting cylinder that is fixed to the middle of the bottom of the support beam, and traction columns that are vertically inserted and connected in the guide beam and symmetrically arranged on the left and right. The telescopic end of the second lifting cylinder is vertically downward and fixed to the traction plate. The upper and lower ends of each traction column are fixed to the lifting plate and the traction plate, respectively.
3. The powder coating weighing device according to claim 2, characterized in that, The lifting mechanism also includes pneumatic fingers fixed to the bottom of the lifting plate and two clamping blocks movably connected to the top of the lifting plate, each having the function of left and right translation and arranged symmetrically. The two grippers of the pneumatic fingers are respectively fixed to the two clamping blocks.
4. A powder coating weighing device according to claim 3, characterized in that, The lifting mechanism also includes two vertically inserted square columns that are movably interposed in the lifting plate and located below the two clamping blocks respectively. The upper ends of the two square columns are fixed to the bottom of the two clamping blocks respectively, and the lower ends of the two square columns extend below the lifting plate. The two grippers of the pneumatic finger are fixed to the lower ends of the two square columns respectively.
5. A powder coating weighing device according to claim 3, characterized in that, Each of the two clamping blocks has a concentric positioning arc surface formed on its opposite outer wall.