Static material weighing device

Abstract

The invention relates to the technical field of weighing equipment, and particularly discloses a material static weighing device which comprises a base, a weighing module, a scattering bin, a hopper, an output pipe, a spiral output rod and a driving mechanism. The weighing module is installed on the top face of the base, the supporting table is installed on the top face of the weighing module, the scattering bin is installed on the top face of the supporting table, the output pipe is arranged on the top face of the supporting table in parallel, the circumferential face of the end of the output pipe communicates with the bottom of the scattering bin, and the other end of the output pipe extends out of the base. The spiral output rod is arranged in the output pipe; one end of the spiral output rod is rotationally connected to the outer side surface of the scattering bin; the driving mechanism is installed on the top face of the supporting table and used for driving the spiral output rod to rotate. The hopper communicates with the top of the scattering bin. Through the control of the weighing system in the weighing module, the labor cost can be reduced, the loss caused by misoperation of staff is effectively avoided, and the effects of improving the batching precision and the production efficiency are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of weighing devices, and in particular to a static weighing device for materials. Background Art

[0002] In the production of products in fields such as the chemical industry, pharmaceutical industry, plastics industry, and powder industry, the weight of the required raw materials is weighed according to the product ratio. The common weighing method is that personnel pour the raw materials into a weighing bucket, weigh the raw materials through a weighing scale, and after weighing the required weight, pour the raw materials into a reaction kettle for stirring reaction one by one after weighing is completed.

[0003] In view of the above related technologies, since the weighing of raw materials is carried out manually, errors are likely to occur, and multiple raw materials need to be weighed one by one. Only after weighing is completed can they be added to the reaction kettle for stirring reaction, resulting in low production efficiency of the product. Summary of the Invention

[0004] In order to improve the production efficiency of products, the present application provides a static weighing device for materials.

[0005] The static weighing device for materials provided by the present application adopts the following technical solutions: A static weighing device for materials includes a base, a weighing module, a dispersion bin, a hopper, an output pipe, a spiral output rod, and a driving mechanism; the weighing module is installed on the top surface of the base, a support platform is installed on the top surface of the weighing module, the dispersion bin is installed on the top surface of the support platform, the output pipe is arranged parallel to the top surface of the support platform, the peripheral surface of the end of the output pipe is communicated with the bottom of the dispersion bin, and the other end of the output pipe extends out of the base; the spiral output rod is arranged in the output pipe, and one end of the spiral output rod is rotatably connected to the outer side surface of the dispersion bin; the driving mechanism is installed on the top surface of the support platform, and the driving mechanism is used to drive the spiral output rod to rotate; the hopper is communicated with the top of the dispersion bin.

[0006] Optionally, the dispersion bin includes an observation side plate, an installation side plate, an arc plate, and an upper cover. The observation side plate is installed on the top surface of the support platform, the installation side plate is installed on the top surface of the support platform, two side edges of the arc plate are respectively connected to the side surfaces of the observation side plate and the installation side plate close to each other, and the upper cover is connected to the tops of the observation side plate, the installation side plate, and the arc plate; the output pipe passes through the observation side plate and the installation side plate, and the peripheral surface of the output pipe is communicated with the bottom of the arc plate; a first installation ring is connected to the side surface of the installation side plate away from the observation side plate, the end of the spiral output rod passes through the first installation ring, and the end of the spiral output rod is rotatably connected to the inner wall of the first installation ring. The hopper is communicated with the top surface of the upper cover.

[0007] Optionally, the driving mechanism includes a speed reducer, a coupling and a rotating shaft. The speed reducer is installed on the top surface of the support platform, and the speed reducer is located on the side of the installation side plate away from the observation side plate. The end of the rotating shaft is connected to the end of the spiral output rod, and the coupling is connected to the output shaft of the speed reducer and the end of the rotating shaft.

[0008] Optionally, a second mounting ring is connected to the side surface of the installation side plate away from the observation side plate. The inner wall of the second mounting ring is rotatably connected to a rotating rod, and one end of the rotating rod passes through the installation side plate and enters the dispersion bin; the end of the rotating rod located in the dispersion bin is connected to a rotating plate, and both ends of the rotating plate are connected to a pushing plate; a driving component for driving the rotation of the rotating rod is arranged on the side surface of the installation side plate.

[0009] Optionally, the driving component includes a first belt pulley, a second belt pulley and a belt. The first belt pulley is connected to the circumferential surface of the rotating shaft, the second belt pulley is connected to the end of the rotating rod, and the belt is wound around the first belt pulley and the second belt pulley.

[0010] Optionally, the top of the hopper is hermetically connected with a cover plate; an air breather is installed on the top surface of the cover plate, and the air breather is used to balance the pressure difference inside and outside the hopper.

[0011] Optionally, a cylinder is arranged on the side surface of the dispersion bin. The end of the cylinder away from the piston rod is hinged to the surface of the dispersion bin. A support plate is connected to the outer peripheral surface of the end of the output pipe. A swing plate is hinged to the side surface of the support plate away from the dispersion bin. One end of the swing plate is hinged to the end of the piston rod of the cylinder, and the other end of the swing plate is connected to a first sealing plate, and the first sealing plate seals the end face of the output pipe.

[0012] Optionally, a receiving bin is connected to the outer wall of the port of the output pipe. The opening of the receiving bin is located below the output pipe. A discharge pipe is communicated with the outer peripheral surface of the bottom of the receiving bin. Two baffle plates are arranged on the bottom end face of the discharge pipe. The baffle plates are attached to the bottom end face of the discharge pipe, and the side surfaces of the two baffle plates are attached. A driving unit for driving the separation of the two baffle plates is installed on the discharge pipe.

[0013] Optionally, a first rotating shaft is rotatably connected to the side plate of the receiving bin close to the dispersion bin. A rotating ring is connected to the end of the first rotating shaft. Three rotating rods are connected to the outer peripheral surface of the rotating ring, and the three rotating rods are evenly distributed around the circumference of the rotating ring; a pushing plate is connected to the end of the rotating rod, and one side of the pushing plate is attached to the inner side wall of the receiving bin; a first motor is installed on the circumferential surface of the output pipe, and the output shaft of the first motor is connected to the end of the first rotating shaft.

[0014] Optionally, the driving unit includes a connecting plate, a second rotating shaft, a second motor, a threaded rod, a push-pull plate, an upper rotating plate, and a lower rotating plate; one end of the connecting plate is connected to the discharge pipe near the outer wall of the dispersing bin, the second rotating shaft is connected to the bottom surface of the connecting plate, one end of the lower rotating plate is connected to the side surface of one of the baffles, one end of the upper rotating plate is connected to the side surface of the other baffle, and the upper rotating plate and the lower rotating plate are arranged in an alternating manner; rotating ports are provided on the end faces of the upper rotating plate and the lower rotating plate away from the baffles, and a third rotating shaft is connected to the inner walls of the two rotating ports; the second motor is installed on the bottom surface of the end of the connecting plate away from the discharge pipe, the end of the threaded rod is connected to the output shaft of the second motor, the push-pull plate is sleeved on the threaded rod and is in threaded transmission, and two waist-shaped grooves are provided on the push-pull plate and are matched with the two third rotating shafts respectively.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: By arranging a plurality of weighing devices on the peripheral side of the reaction kettle and orienting the end of the output pipe towards the feed inlet of the reaction kettle, with raw materials loaded in the hopper, the weighing module records the initial weight of the raw materials in the hopper at this time. Subsequently, the weights of the respective raw materials required in the product production process are set, and then the driving mechanism drives the spiral output rod to rotate. The raw materials in the dispersion bin fall into the output pipe, and the hopper replenishes the raw materials into the dispersion bin. The spiral output rod pushes the raw materials to move out of the output pipe, and the raw materials in the output pipe fall into the reaction kettle. At this time, the weighing module calculates through a program, subtracting the weight of the raw materials in the hopper weighed by the weighing module in real time from the original weight. When the obtained weight value is equal to the required weight value of the raw materials, the spiral output rod is stopped from pushing the materials, and thus the required raw materials can be accurately added; by configuring a plurality of weighing devices to be used in conjunction with the reaction kettle, the efficiency of adding raw materials can be improved, without the need for personnel to weigh and add them separately. Through real-time monitoring by the program, the addition amount of raw materials can be accurately controlled, avoiding errors caused by personnel adding raw materials, thereby improving the production efficiency of the product; the dispersion bin is filled with raw materials. At the part far from the bottom of the dispersion bin, the raw materials fall into the output pipe. Since most of the raw materials are powders, the raw materials are likely to form a bridge structure at the connection between the arc plate and the output pipe, causing the raw materials to stop falling; the driving assembly drives the rotating rod to rotate, the rotating rod drives the rotating plate, the rotating plate drives the pushing plate, and the pushing plate rotates in the dispersion bin to stir the materials far away, destroying the bridge structure formed between the raw materials, so that the materials can fall into the output pipe; since the weight of the raw materials discharged from the output pipe needs to be accurately controlled, when the spiral output rod pushes the raw materials out, when most of the required raw materials are pushed out of the output pipe by the spiral output rod, the remaining raw materials need the spiral output rod to rotate slowly to push the raw materials out little by little. The less raw materials remain, the slower the rotating speed of the spiral output rod until the required amount of raw materials is reached, which results in a slower discharge speed of the raw materials; by arranging a receiving bin at the pipe orifice of the output pipe and pushing the rotating spiral output rod at a constant speed, during the process of the raw materials flowing out of the output pipe, some of the materials fall into the receiving bin. When the weight value weighed by the weighing module is less than the maximum weight value of the raw materials in the receiving bin, the driving of the spiral output rod is stopped at this time, and the output pipe is blocked by the first sealing plate; the driving unit drives the two baffles to separate, making the discharge pipe communicate with the outside, and the materials in the receiving bin leak out. When the weight weighed by the weighing module is close to the required weight of the raw materials, the driving unit gradually drives the baffles to close, and the gap between the two baffles becomes smaller and smaller until the required weight value is reached, and the baffles are closed. By the way of discharging materials through the discharge pipe, compared with the pushing of materials by the spiral output rod, the discharging precision of the discharge pipe is easier to control, and the discharging can be controlled more quickly to reach the required weight value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the weighing device according to an embodiment of the present application; Figure 2 is a schematic internal structural diagram of the weighing device according to an embodiment of the present application; Figure 3It is a schematic explosion structure diagram of the air respirator according to the embodiment of the present application; Figure 4 It is a partial structural schematic diagram of the weighing device according to Embodiment 2 of the present application; Figure 5 It is a sectional structural schematic diagram of the material receiving bin according to Embodiment 2 of the present application; Figure 6 It is Figure 5 an enlarged structural schematic diagram of part A in

[0017] Explanation of reference numerals: 1. Base; 11. Weighing module; 12. Support platform; 2. Dispersing bin; 21. Observation side plate; 211. Glass; 212. Cylinder; 2121. Support plate; 2122. Swing plate; 2123. First sealing plate; 22. Installation side plate; 221. First installation ring; 222. Second installation ring; 23. Arc plate; 24. Upper cover; 25. Rotating rod; 251. Rotating plate; 252. Pushing plate; 26. Driving assembly; 261. First belt pulley; 262. Second belt pulley; 263. Belt strip; 3. Hopper; 31. Cover plate; 32. Air respirator; 321. Tank body; 3211. Second docking ring; 322. Folding filter element; 323. Air pipe interface; 3231. First docking ring; 3232. Air hole; 324. Snap ring; 325. Sealing ring; 4. Output pipe; 5. Spiral output rod; 6. Driving mechanism; 61. Reducer; 62. Coupling; 63. Rotating shaft; 7. Material receiving bin; 71. Semi-circular bin; 711. First rotating shaft; 712. Rotating ring; 713. Rotating rod; 714. Pushing plate; 715. First motor; 72. Wedge-shaped bin; 721. Vent pipe; 722. Air filter element; 8. Discharge pipe; 81. Baffle; 9. Driving unit; 91. Connecting plate; 92. Second rotating shaft; 93. Second motor; 94. Threaded rod; 95. Push-pull plate; 951. Waist-shaped groove; 96. Upper rotating plate; 97. Lower rotating plate; 98. Rotating port; 99. Third rotating shaft; 910. Second sealing plate. Detailed implementation manners

[0018] The following further elaborates on the present application in conjunction with the attached Figures 1-6 drawings.

[0019] Embodiment 1 The embodiment of the present application discloses a static weighing device for materials. Refer to Figures 1-3, The weighing device includes a base 1, a weighing module 11, a dispersion bin 2, a hopper 3, an output pipe 4, a spiral output rod 5 and a driving mechanism 6; the weighing module 11 is installed on the top surface of the base 1, a support platform 12 is installed on the top surface of the weighing module 11, the dispersion bin 2 is installed on the top surface of the support platform 12, the output pipe 4 is arranged in parallel on the top surface of the support platform 12, the peripheral surface of the end of the output pipe 4 communicates with the bottom of the dispersion bin 2, and the other end of the output pipe 4 extends out of the base 1; the spiral output rod 5 is arranged in the output pipe 4, and one end of the spiral output rod 5 is rotatably connected to the outer side surface of the dispersion bin 2; the driving mechanism 6 is installed on the top surface of the support platform 12, and the driving mechanism 6 is used to drive the spiral output rod 5 to rotate; the hopper 3 communicates with the top of the dispersion bin 2.

[0020] By arranging a plurality of weighing devices on the periphery of the reaction kettle and orienting the end of the output pipe 4 towards the feed inlet of the reaction kettle, with raw materials loaded in the hopper 3, at this time the weighing module 11 records the initial weight of the raw materials in the hopper 3. Subsequently, the weights of the respective raw materials required in the product production process are set, and then the driving mechanism 6 drives the spiral output rod 5 to rotate. The raw materials in the dispersion bin 2 fall into the output pipe 4, the hopper 3 replenishes the raw materials into the dispersion bin 2, the spiral output rod 5 pushes the raw materials to move out of the output pipe 4, and the raw materials in the output pipe 4 fall into the reaction kettle. At this time, the weighing module 11 calculates through the program, subtracts the weight of the raw materials in the hopper 3 weighed in real time by the weighing module 11 from the original weight. When the obtained weight value is equal to the required weight value of the raw materials, the spiral output rod 5 is stopped from pushing the materials, and thus the required raw materials can be accurately added; by configuring a plurality of weighing devices for use with the reaction kettle, the efficiency of adding raw materials can be improved, eliminating the need for personnel to weigh and add them individually. Through real-time monitoring by the program, the addition amount of raw materials can be accurately controlled, avoiding errors caused by personnel adding raw materials. By controlling through the weighing system in the weighing module, the labor cost can be reduced, effectively avoiding losses caused by employees' incorrect operations, and improving the batching accuracy and production efficiency.

[0021] The dispersion bin 2 includes an observation side plate 21, an installation side plate 22, an arc plate 23 and an upper cover 24. The observation side plate 21 is installed on the top surface of the support platform 12, the installation side plate 22 is installed on the top surface of the support platform 12, the observation side plate 21 is parallel to the installation side plate 22, both sides of the arc plate 23 are respectively connected to the side surfaces of the observation side plate 21 and the installation side plate 22 that are close to each other, both ends of the arc plate 23 are vertically upward, and both end faces of the arc plate 23 are flush with the top surfaces of the installation side plate 22 and the observation side plate 21. The upper cover 24 is connected to the tops of the observation side plate 21, the installation side plate 22 and the arc plate 23; the output pipe 4 passes through the observation side plate 21 and the installation side plate 22, and the peripheral surface of the output pipe 4 communicates with the bottom of the arc plate 23; a first mounting ring 221 is connected to the side surface of the installation side plate 22 away from the observation side plate 21, the end of the spiral output rod 5 passes through the first mounting ring 221, and the end of the spiral output rod 5 is rotatably connected to the inner wall of the first mounting ring 221 through a bearing. The hopper 3 communicates with the top surface of the upper cover 24.

[0022] The raw materials in the hopper 3 fall onto the dispersion bin 2 through the upper cover 24. The raw materials gather in the arc plate 23, and the raw materials gather at the connection between the output pipe 4 and the arc plate 23 by means of the arc plate 23, and then the raw materials fall into the output pipe 4.

[0023] The driving mechanism 6 includes a speed reducer 61, a coupling 62 and a rotating shaft 63. The speed reducer 61 is installed on the top surface of the support platform 12. The speed reducer 61 is located on the side of the installation side plate 22 away from the observation side plate 21. The end of the rotating shaft 63 is connected to the end of the spiral output rod 5, and the coupling 62 is connected to the output shaft of the speed reducer 61 and the end of the rotating shaft 63.

[0024] When it is necessary to drive the spiral output rod 5 to rotate, the speed reducer 61 drives the coupling 62 to rotate, the coupling 62 drives the rotating shaft 63 to rotate, and the rotating shaft 63 can drive the spiral output rod 5 to rotate.

[0025] A second mounting ring 222 is connected to the side surface of the installation side plate 22 away from the observation side plate 21. The second mounting ring 222 is located directly above the first mounting ring 221. The inner wall of the second mounting ring 222 is rotatably connected to a rotating rod 25 through a bearing. One end of the rotating rod 25 passes through the installation side plate 22 and enters the dispersion bin 2. The rotating rod 25 is located directly above the spiral output rod 5; the end of the rotating rod 25 located in the dispersion bin 2 is connected to a rotating plate 251, and both ends of the rotating plate 251 are connected to a pushing plate 252; a driving assembly 26 for driving the rotating rod 25 to rotate is arranged on the side surface of the installation side plate 22.

[0026] The dispersion bin 2 is filled with raw materials. At the part far from the bottom of the dispersion bin 2, the raw materials fall into the output pipe 4. Since most of the raw materials are powders, the raw materials are likely to form a bridge structure at the connection between the arc plate 23 and the output pipe 4, causing the raw materials to stop falling; by driving the rotating rod 25 to rotate through the driving assembly 26, the rotating rod 25 drives the rotating plate 251, the rotating plate 251 drives the pushing plate 252, and the pushing plate 252 rotates in the dispersion bin 2 to stir the raw materials, destroying the bridge structure formed between the raw materials, so that the materials can fall into the output pipe 4.

[0027] The driving assembly 26 includes a first belt pulley 261, a second belt pulley 262 and a belt 263. The first belt pulley 261 is coaxially connected to the circumferential surface of the rotating shaft 63, the second belt pulley 262 is coaxially connected to the end of the rotating rod 25, and the belt 263 is wound around the first belt pulley 261 and the second belt pulley 262; when it is necessary to drive the rotating rod 25 to rotate, the rotating shaft 63 rotates to drive the first belt pulley 261 to rotate, the first belt pulley 261 drives the second belt pulley 262 to rotate through the belt 263, and the second belt pulley 262 drives the rotating rod 25 to rotate. When the spiral output rod 5 rotates, the rotating rod 25 also rotates simultaneously.

[0028] An observation side plate 21 is provided with an installation opening, and a glass 211 is installed at the installation opening. Through the glass 211, the raw materials in the dispersion bin 2 can be observed.

[0029] A cover plate 31 is hinged to the outer side edge of the top of the hopper 3. The cover plate 31 is detachably connected to the side edge of the top of the hopper 3, and the cover plate 31 seals the top of the hopper 3; an air breather 32 is installed on the top surface of the cover plate 31. The air breather 32 includes a tank body 321, a folding filter element 322, a tracheal interface 323, a snap ring 324 and a sealing ring 325; the tracheal interface 323 is connected to the top surface of the cover plate 31, the tracheal interface 323 communicates with the inside of the hopper 3, and a first docking ring 3231 is connected to the peripheral surface of the top end of the tracheal interface 323; the folding filter element 322 is sealingly connected to the top of the tracheal interface 323, a second docking ring 3211 is connected to the peripheral surface of the opening of the tank body 321, the second docking ring 3211 fits on the top surface of the first docking ring 3231, and an air hole 3232 communicating with the inside of the tank body 321 is provided in the first docking ring 3231; there are two snap rings 324, the snap ring 324 is a semi-circular snap ring 324, one ends of the two snap rings 324 are hinged, the two snap rings 324 are clamped on the outer side edges of the first docking ring 3231 and the second docking ring 3211, and the other ends of the two snap rings 324 are connected by bolts; the sealing ring 325 is installed between the first docking ring 3231 and the second docking ring 3211, and the snap ring 324 presses the first docking ring 3231 and the second docking ring 3211 on the sealing ring 325.

[0030] During the feeding process of the raw materials in the hopper 3, since the hopper 3 is in a sealed state, the raw materials in the hopper 3 decrease, a negative pressure is formed in the cavity of the hopper 3, and the falling rate of the raw materials in the hopper 3 is reduced; at this time, air enters the tank body 321 through the air hole 3232, the air passes through the folding filter element 322 and then enters the tracheal interface 323, and then enters the hopper 3 to balance the air pressure in the hopper 3 and keep the normal flow of the raw materials.

[0031] A cylinder 212 is provided on the side of the observation side plate 21 away from the installation side plate 22. The end of the cylinder 212 away from the piston rod is hinged to the surface of the observation side plate 21. The cylinder 212 is located above the output pipe 4 and below the glass 211. A support plate 2121 is connected to the outer peripheral surface of the end of the output pipe 4. A swing plate 2122 is hinged to the side of the support plate 2121 away from the observation side plate 21. One end of the swing plate 2122 is hinged to the end of the piston rod of the cylinder 212, and the other end of the swing plate 2122 is connected to a first sealing plate 2123, and the first sealing plate 2123 seals the end face of the output pipe 4.

[0032] When it is necessary to block the nozzle of the output pipe 4, the cylinder 212 drives the piston rod to extend. The piston rod drives the swing plate 2122 to swing. The swing plate 2122 rotates around the hinge axis with the support plate 2121. The swing plate 2122 drives the first blocking plate 2123 to block the port of the output pipe 4. When it is necessary to open the output pipe 4, the cylinder 212 drives the piston rod to retract. The piston rod drives the swing plate 2122 to rotate. The swing plate 2122 drives the first blocking plate 2123 to leave the nozzle of the output pipe 4.

[0033] The implementation principle of Embodiment 1 of this application, a material static weighing device, is as follows: A plurality of weighing devices are arranged on the periphery of the reaction kettle, and the end of the output pipe 4 faces the feed port of the reaction kettle. The hopper 3 is filled with raw materials. At this time, the weighing module 11 records the initial weight of the raw materials in the hopper 3. Subsequently, the weights of the respective raw materials required in the product production process are set. Then, the driving mechanism 6 drives the spiral output rod 5 to rotate. The raw materials in the dispersing bin 2 fall into the output pipe 4. The hopper 3 replenishes the raw materials into the dispersing bin 2. The spiral output rod 5 pushes the raw materials to move outside the output pipe 4. The raw materials in the output pipe 4 fall into the reaction kettle. At this time, the weighing module 11 calculates through the program, subtracts the weight of the raw materials in the hopper 3 weighed in real time by the weighing module 11 from the original weight. When the obtained weight value is equal to the required weight value of the raw materials, the spiral output rod 5 is stopped from pushing the materials, and the required raw materials can be accurately added. By configuring a plurality of weighing devices to be used in conjunction with the reaction kettle, the efficiency of adding raw materials can be improved. There is no need for personnel to weigh and add them separately. Through real-time monitoring by the program, the addition amount of raw materials can be accurately controlled, avoiding errors caused by personnel adding raw materials, thereby improving the production efficiency of products.

[0034] Embodiment 2 The difference between Embodiment 2 and Embodiment 1 of this application is that, referring to Figures 4-6 , a receiving bin 7 is connected to the outer wall of the port of the output pipe 4. The opening of the receiving bin 7 is located below the output pipe 4. A discharge pipe 8 communicates with the outer peripheral surface of the bottom of the receiving bin 7. Two semi-circular baffles 81 are provided on the bottom end face of the discharge pipe 8. The baffle 81 fits on the bottom end face of the discharge pipe 8. The sides of the two baffles 81 are in contact. A driving unit 9 for driving the two baffles 81 to separate is installed on the discharge pipe 8.

[0035] Due to the need to precisely control the weight of the raw materials discharged from the output pipe 4, when the spiral output rod 5 pushes the raw materials out, when most of the required raw materials are pushed out of the output pipe 4 by the spiral output rod 5, the remaining raw materials need the spiral output rod 5 to rotate slowly to push the raw materials out little by little. The less raw materials remain, the slower the rotation speed of the spiral output rod 5 until the required amount of raw materials is reached, which results in a slower discharge speed of the raw materials. By setting a receiving bin 7 at the outlet of the output pipe 4 and driving the rotating spiral output rod 5 at a constant speed, during the process of the raw materials flowing out of the output pipe 4, some of the materials fall into the receiving bin 7. When the weight value measured by the weighing module 11 is less than the maximum weight value of the raw materials in the receiving bin 7, the driving of the spiral output rod 5 is stopped at this time, and the output pipe 4 is blocked by the first sealing plate 2123. The driving unit 9 drives the two baffles 81 to separate, so that the discharge pipe 8 communicates with the outside, and the materials in the receiving bin 7 leak out. When the weight measured by the weighing module 11 is close to the required weight of the raw materials, the driving unit 9 gradually drives the baffle 81 to close, and the gap between the two baffles 81 becomes smaller and smaller until the required weight value is reached, and the baffle 81 closes. By means of the leakage of materials through the discharge pipe 8, compared with the pushing of materials by the spiral output rod 5, the discharging accuracy of the discharge pipe 8 is easier to control, and the discharging can be controlled more quickly to reach the required weight value.

[0036] The receiving bin 7 includes a semi-circular bin 71 and a wedge-shaped bin 72. One side wall top surface of the wedge-shaped bin 72 is connected to the outer wall of the outlet of the output pipe 4, and the opening of the wedge-shaped bin 72 faces the first sealing plate 2123; the semi-circular bin 71 communicates with the bottom of the wedge-shaped bin 72, and the discharge pipe 8 communicates with the bottom of the semi-circular bin 71.

[0037] A first rotating shaft 711 is rotatably connected inside the side plate of the semi-circular bin 71 close to the dispersing bin 2. The end of the first rotating shaft 711 is connected with a rotating ring 712. Three rotating rods 713 are connected to the outer peripheral surface of the rotating ring 712, and the three rotating rods 713 are evenly distributed around the circumference of the rotating ring 712; the end of the rotating rod 713 is connected with a pushing plate 714, and one side edge of the pushing plate 714 is attached to the inner side wall of the semi-circular bin 71; a first motor 715 is installed on the peripheral surface of the output pipe 4, and the output shaft of the first motor 715 is connected to the end of the first rotating shaft 711.

[0038] In order to prevent the raw materials from accumulating in the receiving bin 7, the first motor 715 drives the first rotating shaft 711 to rotate. The first rotating shaft 711 drives the rotating rod 713 to rotate through the rotating ring 712, and the rotating rod 713 drives the pushing plate 714 to rotate. The pushing plate 714 stirs the materials in the receiving bin 7, so that the materials can be stably discharged outside the discharge pipe 8.

[0039] The driving unit 9 includes a connecting plate 91, a second rotating shaft 92, a second motor 93, a threaded rod 94, a push-pull plate 95, an upper rotating plate 96 and a lower rotating plate 97; one end of the connecting plate 91 is connected to the outer side wall of the discharging pipe 8 near the dispersing bin 2, the second rotating shaft 92 is connected to the bottom surface of the connecting plate 91, one end of the lower rotating plate 97 is connected to the side surface of one of the baffles 81, one end of the upper rotating plate 96 is connected to the side surface of the other baffle 81, and the upper rotating plate 96 and the lower rotating plate 97 are arranged in a staggered manner; rotating ports 98 are arranged on the end surfaces of the upper rotating plate 96 and the lower rotating plate 97 away from the baffle 81, and the inner walls of the two rotating ports 98 are connected with a third rotating shaft 99; the second motor 93 is installed on the bottom surface of the end of the connecting plate 91 away from the discharging pipe 8, the end of the threaded rod 94 is connected to the output shaft of the second motor 93, the push-pull plate 95 is sleeved on the threaded rod 94 and is in threaded transmission, and two waist-shaped grooves 951 which cooperate with the two third rotating shafts 99 are arranged on the push-pull plate 95.

[0040] When it is necessary to drive the two baffles 81 to separate, the second motor 93 drives the threaded rod 94 to rotate, the threaded rod 94 drives the push-pull plate 95, the push-pull plate 95 moves towards the discharging pipe 8, the push-pull plate 95 pushes the third rotating shaft 99, the third rotating shaft 99 pushes the upper rotating plate 96 and the lower rotating plate 97 to rotate around the second rotating shaft 92, and the upper rotating plate 96 and the lower rotating plate 97 drive the two baffles 81 to separate; when it is necessary to close the baffle 81, the second motor 93 drives the threaded rod 94 to drive the push-pull plate 95 to move back, and the two baffles 81 can be driven to close.

[0041] A second sealing plate 910 is connected to the periphery of the first sealing plate 2123, and the second sealing plate 910 fits on the opening end surface of the wedge-shaped bin 72; when the first sealing plate 2123 seals the port of the output pipe 4 and the second sealing plate 910 seals the opening of the wedge-shaped bin 72, the dispersion of material dust is reduced.

[0042] An air vent pipe 721 is communicated with the side surface of the wedge-shaped bin 72 close to the dispersing bin 2, and an air filter element 722 is arranged in the air vent pipe 721; when the second sealing plate 910 seals the opening of the wedge-shaped bin 72, in order to ensure the air pressure balance in the receiving bin 7, the air pressure balance inside and outside the receiving bin 7 is maintained through the air vent pipe 721.

[0043] The implementation principle of a material static weighing device according to an embodiment of the present application is as follows: Since it is necessary to accurately control the weight of the raw materials discharged from the output pipe 4, when the spiral output rod 5 pushes the raw materials out, when most of the required raw materials are pushed out of the output pipe 4 by the spiral output rod 5, the remaining raw materials need the spiral output rod 5 to rotate slowly to push the raw materials out little by little. The less raw materials remain, the slower the rotation speed of the spiral output rod 5 until the required amount of raw materials is reached, which results in a slower discharge speed of the raw materials. By providing a receiving bin 7 at the nozzle of the output pipe 4 and driving the rotating spiral output rod 5 at a constant speed, during the process of the raw materials flowing out of the output pipe 4, some of the materials fall into the receiving bin 7. When the weight value measured by the weighing module 11 is less than the maximum raw material weight value in the receiving bin 7, the driving of the spiral output rod 5 is stopped at this time, and the output pipe 4 is blocked by the first sealing plate 2123. The driving unit 9 drives the two baffles 81 to separate, so that the discharge pipe 8 communicates with the outside, and the materials in the receiving bin 7 leak out. When the weight measured by the weighing module 11 approaches the required raw material weight, the driving unit 9 gradually drives the baffle 81 to close, and the gap between the two baffles 81 becomes smaller and smaller until the required weight value is reached, and the baffle 81 closes. By means of the leakage of materials through the discharge pipe 8, compared with the pushing of materials by the spiral output rod 5, the discharging accuracy of the discharge pipe 8 is easier to control, and the discharging can be controlled more quickly to reach the required weight value.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A material static weighing device, characterized in that: The invention comprises a base (1), a weighing module (11), a breaking bin (2), a hopper (3), an output pipe (4), a spiral output rod (5) and a driving mechanism (6); the weighing module (11) is mounted on the top surface of the base (1); a support platform (12) is mounted on the top surface of the weighing module (11); the breaking bin (2) is mounted on the top surface of the support platform (12); the output pipe (4) is arranged parallel to the top surface of the support platform (12); and the end of the output pipe (4) is provided with a spiral output rod (5). The output tube (4) is connected to the bottom of the dispersing bin (2), and the other end of the output tube (4) extends out of the base (1); the spiral output rod (5) is arranged in the output tube (4), and one end of the spiral output rod (5) is rotatably connected to the outer side of the dispersing bin (2); the driving mechanism (6) is installed on the top surface of the support platform (12), and the driving mechanism (6) is used to drive the spiral output rod (5) to rotate; the hopper (3) is connected to the top of the dispersing bin (2).

2. A material static weighing device according to claim 1, characterized in that: The debonding bin (2) comprises an observation side plate (21), an installation side plate (22), an arc plate (23) and an upper cover (24); the observation side plate (21) is installed on the top surface of the support platform (12); the installation side plate (22) is installed on the top surface of the support platform (12); two sides of the arc plate (23) are respectively connected to the side surfaces of the observation side plate (21) and the installation side plate (22) that are close to each other; the upper cover (24) is connected to the observation side plate (21), the installation side plate (22) and the arc plate (23); ) top; the output pipe (4) is inserted into the observation side plate (21) and the installation side plate (22), and the circumferential surface of the output pipe (4) is connected to the bottom of the arc plate (23); the side of the installation side plate (22) away from the observation side plate (21) is connected to a first installation ring (221), the end of the spiral output rod (5) passes through the first installation ring (221), the end of the spiral output rod (5) is rotatably connected to the inner wall of the first installation ring (221), and the hopper (3) is connected to the top surface of the upper cover (24).

3. A material static weighing device according to claim 2, characterized in that: The driving mechanism (6) comprises a reducer (61), a coupling (62) and a rotating shaft (63); the reducer (61) is mounted on the top surface of the support platform (12); the reducer (61) is located on a side of the mounting side plate (22) away from the observation side plate (21); an end of the rotating shaft (63) is connected to an end of the spiral output rod (5); and the coupling (62) is connected to the output shaft of the reducer (61) and an end of the rotating shaft (63).

4. A material static weighing device according to claim 3, characterized in that: A side surface of the mounting side plate (22) away from the observation side plate (21) is connected to a second mounting ring (222); an inner wall of the second mounting ring (222) is rotatably connected to a rotating rod (25); one end of the rotating rod (25) passes through the mounting side plate (22) and enters into the dispersing bin (2); an end of the rotating rod (25) located in the dispersing bin (2) is connected to a rotating plate (251), and both ends of the rotating plate (251) are connected to pushing plates (252); a driving component (26) for driving the rotating rod (25) to rotate is arranged on the side surface of the mounting side plate (22).

5. A material static weighing device according to claim 4, characterized in that: The driving assembly (26) comprises a first pulley (261), a second pulley (262) and a belt strip (263), wherein the first pulley (261) is connected to the circumference of the rotating shaft (63), the second pulley (262) is connected to the end of the rotating rod (25), and the belt strip (263) is wound around the first pulley (261) and the second pulley (262).

6. A material static weighing device according to claim 1, characterized in that: The top of the hopper (3) is sealed with a cover plate (31); an air respirator (32) is installed on the top surface of the cover plate (31), and the air respirator (32) is used to balance the pressure difference between the inside and outside of the hopper (3).

7. A material static weighing device according to claim 1, characterized in that: A cylinder (212) is provided on the side of the dispersing bin (2); the end of the cylinder (212) away from the piston rod is hinged to the surface of the dispersing bin (2); the outer peripheral surface of the end of the output pipe (4) is connected to a support plate (2121); the side of the support plate (2121) away from the dispersing bin (2) is hinged to a swing plate (2122); one end of the swing plate (2122) is hinged to the end of the piston rod of the cylinder (212); the other end of the swing plate (2122) is connected to a first blocking plate (2123); the first blocking plate (2123) blocks the end surface of the output pipe (4).

8. A material static weighing device according to claim 1, characterized in that: The outer wall of the port of the output pipe (4) is connected to a receiving bin (7), the opening of the receiving bin (7) is located below the output pipe (4), the outer peripheral surface of the bottom of the receiving bin (7) is connected to a discharge pipe (8), the bottom end surface of the discharge pipe (8) is provided with two baffles (81), the baffles (81) are fitted to the bottom end surface of the discharge pipe (8), the sides of the two baffles (81) are fitted together, and a driving unit (9) for driving the two baffles (81) to separate is installed on the discharge pipe (8).

9. A material static weighing device according to claim 8, characterized in that: The receiving bin (7) is rotatably connected to a first rotating shaft (711) in a side plate close to the breaking bin (2); the end of the first rotating shaft (711) is connected to a rotating ring (712); the outer circumference of the rotating ring (712) is connected to three rotating rods (713); the three rotating rods (713) are evenly distributed around the circumference of the rotating ring (712); the end of the rotating rod (713) is connected to a push plate (714); one side of the push plate (714) is in contact with the inner wall of the receiving bin (7); a first motor (715) is installed on the circumference of the output pipe (4); the output shaft of the first motor (715) is connected to the end of the first rotating shaft (711).

10. A material static weighing device according to claim 8, characterized in that: The driving unit (9) comprises a connecting plate (91), a second rotating shaft (92), a second motor (93), a threaded rod (94), a push-pull plate (95), an upper rotating plate (96) and a lower rotating plate (97); one end of the connecting plate (91) is connected to the outer wall of the discharge pipe (8) close to the breaking bin (2); the second rotating shaft (92) is connected to the bottom surface of the connecting plate (91); one end of the lower rotating plate (97) is connected to the side surface of one of the baffles (81); one end of the upper rotating plate (96) is connected to the side surface of the other baffle (81); the upper rotating plate (96) and the lower rotating plate (97) are connected to each other. 7) are arranged in a staggered manner; the end surfaces of the upper rotating plate (96) and the lower rotating plate (97) away from the baffle (81) are both provided with a rotating opening (98), and the inner walls of the two rotating openings (98) are connected with a third rotating shaft (99); the second motor (93) is installed on the bottom surface of the end of the connecting plate (91) away from the discharge pipe (8), the end of the threaded rod (94) is connected to the output shaft of the second motor (93), the push-pull plate (95) is sleeved on the threaded rod (94) and threadedly driven, and the push-pull plate (95) is provided with two waist-shaped grooves (951) that cooperate with the two third rotating shafts (99).

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