Weighing and packaging system for food-grade heavy calcium carbonate production

Abstract

The invention provides a weighing and packaging system for food-grade heavy calcium carbonate production, and relates to the technical field of weighing and packaging systems.The weighing and packaging system for food-grade heavy calcium carbonate production comprises a weighing mechanism, and the weighing mechanism is used for quantitatively weighing materials needing to be packaged; a circulating guide rail; the pre-hanging devices comprise transfer tables, butt joint pipe assemblies and hook pieces, the transfer tables are arranged on the circulating guide rail, the butt joint pipe assemblies and the hook pieces are arranged on the transfer tables, the butt joint pipe assemblies are used for being communicated with bag openings of the ton bags and can be in butt joint with the weighing mechanism, and the hook pieces are used for hooking hanging belts of the ton bags. After feeding of the ton bag which is being fed is completed, the pre-hanging device which hooks the ton bag is moved away from the position below the weighing mechanism, the rear pre-hanging device is moved to the position below the weighing mechanism, then feeding can be conducted on the ton bag on the pre-hanging device, and therefore the period of time of feeding into the ton bag can be utilized. And thus, the production efficiency of food-grade heavy calcium carbonate can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of weighing and packaging systems, and in particular to a weighing and packaging system for the production of food-grade heavy calcium carbonate. Background Art

[0002] Food grade heavy calcium carbonate is a powdered inorganic filler made from natural carbonate minerals such as calcite, marble, and limestone. It is mainly used as a food additive in the food industry. The production process of food grade heavy calcium carbonate includes pretreatment, crushing, grinding, grading, screening, surface treatment, quality inspection, weighing and packaging. In the weighing and packaging process of food grade heavy calcium carbonate, ton bags are usually used as packaging bags, and ton bag packaging machines are used to weigh and package food grade heavy calcium carbonate.

[0003] At present, the common ton bag packaging machine is mainly composed of a hook clamping mechanism, a feed metering control mechanism, a hydraulic lifting mechanism and a conveying pipeline. For example, the invention patent application with publication number CN105329493A discloses a ton bag packaging machine. When weighing and packaging materials, the ton bag packaging machine first hangs the sling hook of the ton bag on the grab hook, and then the bag mouth of the ton bag is sleeved on the bottom end of the discharge pipe, and the bag mouth of the ton bag is clamped and fixed to the bottom end of the discharge pipe through the discharge pipe stretching frame. Then the material is discharged into the ton bag through the feed hopper and the discharge pipe, and weighed by the sensor. When the material in the ton bag reaches the packaging weight, the feeding is stopped and the ton bag is dropped by the stretching cylinder, and then the ton bag is transferred to the sealing station for sealing through the conveying equipment.

[0004] However, during the weighing and packaging process of the above-mentioned ton bag packaging machine, the staff can only hang the sling hook of the next ton bag on the grab hook and connect the bag mouth of the ton bag to the bottom end of the discharge pipe after each ton bag is loaded and removed from the grab hook. Therefore, the time of ton bag feeding cannot be utilized, so that the production efficiency of food-grade heavy calcium carbonate still has room for improvement. Summary of the invention

[0005] The purpose of this application is to provide a weighing and packaging system for the production of food-grade heavy calcium carbonate, which is used to solve the problem that the ton bag packaging machine in the related art cannot utilize the time of ton bag feeding during the weighing and packaging process, so that the production efficiency of food-grade heavy calcium carbonate still has room for improvement.

[0006] The weighing and packaging system for food-grade heavy calcium carbonate production provided in this application adopts the following technical solution:

[0007] A weighing and packaging system for the production of food-grade heavy calcium carbonate, comprising:

[0008] frame;

[0009] A weighing mechanism, which is disposed on the frame and is used to quantitatively weigh the materials to be packaged;

[0010] Circulation rails;

[0011] A pre-hanging device, wherein the pre-hanging device is provided with at least two groups, and the pre-hanging device comprises a transfer platform, a butt joint pipe assembly and a hook part respectively. The transfer platform is arranged on the circulating guide rail and can circulate along the circulating guide rail. The butt joint pipe assembly and the hook part are arranged on the transfer platform. The butt joint pipe assembly is used to communicate with the bag opening of the ton bag and can dock with the weighing mechanism. The hook part is used to hook the sling of the ton bag.

[0012] Optionally, it also includes a feed pipe and a docking drive component. The feed pipe is fixed on the frame and located below the weighing mechanism. The docking pipe assembly includes a main pipe, a material receiving pipe fitting and a material discharging pipe fitting. The main pipe is fixed on the transfer platform. The material receiving pipe fitting can be telescopically arranged on the main pipe. The material discharging pipe fitting is connected to the main pipe and is used to communicate with the bag mouth of the ton bag. The docking drive component is used to drive the material receiving pipe fitting to extend relative to the main pipe and dock with the feed pipe.

[0013] Optionally, the docking drive member includes a lifting module and an axis push seat, the lifting module is arranged on the discharge pipe, the axis push seat is connected to the lifting module, and the axis push seat is provided with a pipe groove for clamping the receiving pipe from the side. When the receiving pipe is clamped with the pipe groove, the lifting module can drive the axis push seat to move upward to drive the receiving pipe to extend relative to the main pipe and dock with the discharge pipe.

[0014] Optionally, the docking drive member also includes a locking module, which includes a locking tongue and a reset elastic member. The shaft push seat is provided with a groove, the material receiving pipe is provided with a boss that can be inserted into the groove, and the boss is provided with a locking groove. The locking tongue is provided on the shaft push seat and can be engaged with the locking groove. The reset elastic member is provided on the shaft push seat and acts on the locking tongue.

[0015] Optionally, the docking drive member also includes a ring seat, a rotary drive member and a release module, the ring seat is rotatably arranged on the discharge tube, the rotary drive member is fixedly arranged on the discharge tube and connected to the ring seat, the lifting module is fixedly arranged on the ring seat, and the release module is used to drive the locking tongue to disengage from the locking groove, the connecting pipe fitting includes an upper telescopic tube and an upper rotating tube, the upper telescopic tube is telescopically connected to the upper end of the main tube, the upper rotating tube is rotatably connected to the upper telescopic tube, and the boss is located on the upper rotating tube.

[0016] Optionally, the release module includes a release block, a stop block is provided on the discharge tube, the release block is slidably arranged on the shaft push seat, and is connected to the locking tongue, when the ring seat rotates around the axis of the discharge tube, the release block can abut against the stop block, and when the release block abuts against the stop block, the release block can drive the locking tongue to disengage from the locking groove.

[0017] Optionally, the release module also includes a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft are rotatably arranged on the shaft push seat, the locking tongue is provided with a tooth row, the first rotating shaft is provided with a first gear meshing with the tooth row, one end of the second rotating shaft is connected to the first rotating shaft, and the other end is provided with a second gear, and the release block is a rack structure and meshes with the second gear.

[0018] Optionally, the pre-hanging device also includes a clamping assembly and a twisting drive component, the discharge pipe component includes a lower telescopic tube and a lower rotating tube, the lower telescopic tube is telescopically arranged at the lower end of the main tube, the lower rotating tube is rotatably arranged on the lower telescopic tube, the bag opening of the ton bag can be sleeved on the lower end of the lower rotating tube, the clamping assembly is arranged on the lower rotating tube, and is used to clamp the bag opening of the ton bag sleeved on the lower end of the lower rotating tube, and the twisting drive component is used to drive the lower rotating tube to move along the axis and rotate around the axis.

[0019] Optionally, the rotating and twisting drive component includes a rotating and twisting motor and a screw rod, the rotating and twisting motor is fixed on the main pipe, the lower telescopic tube is provided with a screw hole, the screw rod is fixedly connected to the output shaft of the rotating and twisting motor and is screwed to the lower telescopic tube through the screw hole, the lower rotating tube is provided with a transmission gear ring, the screw rod is provided with a transmission gear, and the transmission gear is meshed with the transmission gear ring.

[0020] Optionally, the pre-hanging device also includes a walking mechanism, which includes a support, a limiting wheel, a walking wheel and a walking motor, the support is rotatably connected to the transfer platform, the limiting wheel and the walking wheel are rotatably arranged on the transfer platform, the walking motor is fixed on the support and connected to the walking wheel, limiting grooves are provided on both sides of the circulating guide rail, the limiting wheels are respectively located on both sides of the limiting grooves and rollingly abut against the limiting grooves, a support plate is provided on the circulating guide rail, and the walking wheel is placed on the support plate.

[0021] In summary, the present application includes at least the following beneficial technical effects: when the weighing and packaging system for the production of food-grade heavy calcium carbonate of the present application is working, the materials to be packaged are quantitatively weighed by the weighing mechanism, and at the same time, the bag mouth of the ton bag is connected to the butt-joint pipe assembly, and the sling hook of the ton bag is hung on the hook part, and then the transfer platform is moved to the bottom of the weighing mechanism along the circulating guide rail, and then the materials quantitatively weighed by the weighing mechanism are discharged into the ton bag through the butt-joint pipe assembly. During the time period of feeding into the ton bag, other pre-hanging devices are arranged and waiting at the rear. At this time, the staff can hook the remaining ton bags on the hook parts of the pre-hanging devices waiting at the rear, and connect the bag mouth with the butt-joint pipe assembly. When the ton bag being fed is finished, the pre-hanging device hooking the ton bag is moved away from the bottom of the weighing mechanism, and the rear pre-hanging device is moved to the bottom of the weighing mechanism, so that the ton bag on the pre-hanging device can be fed, so that the time of feeding into the ton bag can be utilized, thereby improving the production efficiency of food-grade heavy calcium carbonate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a weighing and packaging system for producing food-grade heavy calcium carbonate in an embodiment of the present application;

[0023] Figure 2 for Figure 1 A partial enlarged schematic diagram of part A;

[0024] Figure 3 It is a cross-sectional view of the weighing and packaging system for producing food-grade heavy calcium carbonate in the embodiment of the present application from a first perspective;

[0025] Figure 4 It is a cross-sectional view of the weighing and packaging system for producing food-grade heavy calcium carbonate in the embodiment of the present application from a second viewing angle;

[0026] Figure 5 for Figure 4 A partial enlarged schematic diagram of the M2 part;

[0027] Figure 6 It is a cross-sectional view of the weighing and packaging system for producing food-grade heavy calcium carbonate in the embodiment of the present application from a third viewing angle;

[0028] Figure 7 for Figure 6 A partial enlarged schematic diagram of part B2;

[0029] Figure 8 for Figure 6 A partial enlarged schematic diagram of part B1 in the middle;

[0030] Fig. 9 for Figure 3 A partial enlarged schematic diagram of part C in the middle;

[0031] Fig.10for Figure 4 A partial enlarged schematic diagram of the M1 part;

[0032] Fig.11 for Fig.10 A partial enlarged schematic diagram of the M11 part;

[0033] Fig.12 It is a cross-sectional view of the weighing and packaging system for producing food-grade heavy calcium carbonate in the embodiment of the present application from a fourth perspective;

[0034] Fig.13 for Fig.12 A partial enlarged schematic diagram of part D in the middle.

[0035] Description of reference numerals:

[0036] 10. Frame; 20. Weighing mechanism; 21. Weighing bucket; 211. Bracket; 22. Pressure sensor; 23. Valve;

[0037] 30. Transfer platform; 31. Hanging column; 311. Hooking groove; 40. Docking drive member; 41. Lifting module; 42. Shaft push seat; 421. Groove; 422. Slide groove; 423. Guide sleeve; 424. Pipe groove; 43. Lock tongue; 431. Column; 432. Gear row; 44. Return spring; 45. Ring seat; 451. Driven gear ring; 46. Rotary drive motor; 461. Drive gear; 47. Release block; 48. First rotating shaft; 481. First gear; 482. First bevel gear; 49. Second rotating shaft; 491. Second gear; 492. Second bevel gear;

[0038] 50, main pipe; 51, plate body; 60, material receiving pipe fitting; 61, upper telescopic pipe; 611, guide column; 612, flange; 614, first positioning plate; 615, second positioning plate; 62, upper rotating pipe; 621, boss; 622, locking groove; 623, magnet; 63, contraction spring;

[0039] 70, discharging pipe fitting; 71, lower telescopic pipe; 711, screw hole; 72, lower rotating pipe; 721, transmission gear ring; 722, bracket;

[0040] 80, clamping assembly; 81, arc-shaped clamping plate; 811, pillar; 82, clamping spring; 90, screw driving member; 91, screw motor; 92, screw rod; 921, transmission gear;

[0041] 100, walking mechanism; 101, support; 1011, pivot; 102, limiting wheel; 103, walking wheel; 104, walking motor; 110, circulating guide rail; 111, limiting groove; 112, support plate; 113, support column; 120, electric push rod; 121, telescopic rod; 130, feeding pipe; 131, stopper. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1 -Attached Fig.13 , further details of this application are given.

[0043] The embodiment of the present application discloses a weighing and packaging system for the production of food-grade heavy calcium carbonate.

[0044] A weighing and packaging system for producing food-grade heavy calcium carbonate comprises a frame 10, a weighing mechanism 20, a circulating guide rail 110, a pre-hanging device, a feeding pipe 130 and a docking drive member 40.

[0045] Reference Figures 1 to 3 The weighing mechanism 20 is arranged on the frame 10 and is used to quantitatively weigh the food-grade heavy calcium carbonate finished product material to be packaged. More specifically, the weighing mechanism 20 includes a weighing bucket 21, a pressure sensor 22 and a valve 23. The pressure sensor 22 is fixed on the frame 10. The weighing bucket 21 is provided with a bracket 211, and is connected to the measuring end of the pressure sensor 22 through the bracket 211. The valve 23 is connected to the outlet end of the weighing bucket 21, and the valve 23 can be a gate valve.

[0046] Reference Figures 4 to 7 At least two groups of pre-hanging devices are provided, and the pre-hanging devices respectively include a transfer platform 30, a butt-joint pipe assembly, a hook member, a clamping assembly 80, a twisting driving member 90 and a walking mechanism 100.

[0047] A support column 113 is provided at the bottom of the circulating guide rail 110. The transfer platform 30 is provided on the circulating guide rail 110 through the walking mechanism 100 and can be cyclically moved along the circulating guide rail 110. More specifically, the walking mechanism 100 includes a support 101, a limiting wheel 102, a traveling wheel 103 and a traveling motor 104. The support 101 is rotatably connected to the transfer platform 30 through a pivot 1011. The limiting wheel 102 and the traveling wheel 103 are rotatably provided on the transfer platform 30. The traveling motor 104 is fixed on the support 101 and connected to the traveling wheel 103. Limiting grooves 111 are provided on both sides of the circulating guide rail 110. The limiting wheels 102 are respectively located on both sides of the limiting grooves 111 and rollably abut against the limiting grooves 111. A support plate 112 is provided on the circulating guide rail 110, and the traveling wheel 103 is placed on the support plate 112.

[0048] Reference Figure 3 , Figures 6 to 8The butt joint pipe assembly and the hook member are arranged on the transfer platform 30. The hook member is used to hook the sling of the ton bag. The butt joint pipe assembly is used to communicate with the bag mouth of the ton bag and can be docked with the weighing mechanism 20. More specifically, the feed pipe 130 is fixed on the frame 10 and is located below the weighing mechanism 20. The butt joint pipe assembly includes a main pipe 50, a material receiving pipe 60 and a material discharging pipe 70. The main pipe 50 is fixed on the transfer platform 30. The material receiving pipe 60 can be telescopically arranged on the main pipe 50. The material discharging pipe 70 is connected to the main pipe 50 and is used to communicate with the bag mouth of the ton bag. The docking drive member 40 is used to drive the material receiving pipe 60 to extend relative to the main pipe 50 and dock with the feed pipe 130. When the weighing and packaging system for food-grade heavy calcium carbonate production of the present application is working, the finished food-grade heavy calcium carbonate material in the storage bin is discharged into the weighing bucket 21, and the material in the weighing bucket 21 is weighed by the pressure sensor 22. When the predetermined weight is reached, the feeding into the weighing bucket 21 is stopped. At the same time, the bag mouth of the ton bag is connected with the discharge pipe 70, and the sling hook of the ton bag is hung on the hook part, and then the transfer platform 30 is driven by the walking mechanism 100 to move along the circulating guide rail 110 to the bottom of the discharge pipe 130, and then the receiving pipe 60 is driven by the docking drive 40 to extend relative to the main pipe 50 and dock with the discharge pipe 130. Then the valve 23 is opened to discharge the material in the weighing bucket 21 into the ton bag through the discharge pipe 130, the receiving pipe 60, the main pipe 50 and the discharge pipe 70. During the time period of feeding into the ton bag, other pre-hanging devices are arranged and waiting at the rear. At this time, the staff can hook the remaining ton bags on the hook parts of the pre-hanging devices waiting at the rear, and connect the bag openings with the discharge pipe 70. When the ton bag being fed is finished, the pre-hanging device hooking the ton bag is moved away from under the discharge pipe 130, and the rear pre-hanging device is moved to under the discharge pipe 130, and the ton bag on the pre-hanging device can be fed, so that the time of feeding into the ton bag can be utilized, thereby improving the production efficiency of food-grade heavy calcium carbonate.

[0049] Reference Figures 9 to 11 In an optional embodiment, the docking drive member 40 may adopt the following structure: the docking drive member 40 includes a lifting module 41, a shaft push seat 42, a locking module, a ring seat 45, a rotary drive member and a release module. The lifting module 41 is arranged on the feeding tube 130. More specifically, the ring seat 45 is rotatably arranged on the feeding tube 130. The lifting module 41 is fixed on the ring seat 45. The lifting module 41 may adopt a linear screw module. The rotary drive member is fixed on the feeding tube 130 and connected to the ring seat 45. More specifically, the rotary drive member is a rotary drive motor 46. The rotary drive motor 46 is fixed on the feeding tube 130. A driving gear 461 is arranged on the output shaft of the rotary drive motor 46. A driven gear ring 451 is arranged on the ring seat 45. The driving gear 461 is meshed with the driven gear ring 451. The shaft push seat 42 is connected to the lifting module 41 , and a pipe groove 424 for receiving the pipe fitting 60 from the side is provided on the shaft push seat 42 .

[0050] The locking module includes a locking tongue 43 and a reset elastic member, a groove 421 is provided on the shaft push seat 42, a boss 621 that can be plugged into the groove 421 is provided on the material receiving pipe 60, a locking groove 622 is provided on the boss 621, the locking tongue 43 is provided on the shaft push seat 42, and can be engaged with the locking groove 622, and the reset elastic member is provided on the shaft push seat 42 and acts on the locking tongue 43. More specifically, a sliding groove 422 is provided on the shaft push seat 42, the locking tongue 43 is slidably provided in the sliding groove 422, a column 431 is provided on the locking tongue 43, and the column 431 is slidably provided in the sliding groove 422, and the reset elastic member is a reset spring 44, the reset spring 44 is sleeved on the outside of the column 431, and the two ends of the reset spring 44 are respectively in contact with the inner end surfaces of the locking tongue 43 and the sliding groove 422.

[0051] When the transfer platform 30 moves along the circulating guide rail 110 until the receiving pipe 60 is engaged with the pipe groove 424, the boss 621 is inserted into the groove 421 until the locking tongue 43 is engaged in the locking groove 622, and then the lifting module 41 drives the shaft push seat 42 to move upward to drive the receiving pipe 60 to extend relative to the main pipe 50 and dock with the discharge pipe 130.

[0052] Reference Figure 8 , Figures 9 to 13 In an optional embodiment, the specific structure of the material receiving pipe fitting 60 and the release module is as follows: the material receiving pipe fitting 60 includes an upper telescopic tube 61, an upper rotating tube 62 and a contraction spring 63, the upper telescopic tube 61 is telescopically connected to the upper end of the main tube 50, more specifically, a guide column 611 is provided on the upper telescopic tube 61, and a plate body 51 extending radially is provided on the main tube 50, the guide column 611 is slidably penetrated through the plate body 51, a flange 612 is provided on the guide column 611, and the contraction spring 63 is sleeved on the outside of the guide column 611, and the two ends of the contraction spring 63 are respectively abutted against the flange 612 and the plate body 51.

[0053] The upper rotating tube 62 is rotatably connected to the upper telescopic tube 61 , the boss 621 is located on the upper rotating tube 62 , the upper telescopic tube 61 is provided with an iron first positioning plate 614 and a second positioning plate 615 , and the upper rotating tube 62 is provided with a magnet 623 that can be adsorbed by the first positioning plate 614 or the second positioning plate 615 .

[0054] Reference Figures 9 to 11The release module is used to drive the locking tongue 43 to disengage from the locking groove 622. When the ton bag is loaded, the release module can be used to drive the locking tongue 43 to disengage from the locking groove 622, so that the material receiving pipe 60 can be separated from the shaft push seat 42. In an optional embodiment, the specific structure of the tripping module is as follows: the tripping module includes a tripping block 47, a first rotating shaft 48 and a second rotating shaft 49, a stopper 131 is provided on the feeding tube 130, a guide sleeve 423 is provided on the shaft push seat 42, the tripping block 47 is slidably arranged in the guide sleeve 423, and is connected to the locking tongue 43, more specifically, the first rotating shaft 48 and the second rotating shaft 49 are rotatably arranged on the shaft push seat 42, a tooth row 432 is provided on the column 431 of the locking tongue 43, a first gear 481 meshing with the tooth row 432 is provided on the first rotating shaft 48, a first bevel gear 482 is also provided on the first rotating shaft 48, a second bevel gear 492 is provided at one end of the second rotating shaft 49, the second bevel gear 492 meshes with the first bevel gear 482, a second gear 491 is provided at the other end of the second rotating shaft 49, and the tripping block 47 is a rack structure and meshes with the second gear 491.

[0055] When the ring seat 45 rotates around the axis of the discharge tube 130, the release block 47 can abut against the stop block 131. When the release block 47 abuts against the stop block 131, the release block 47 slides along the guide sleeve 423 and drives the second rotating shaft 49 to rotate through the second gear 491, and then drives the first rotating shaft 48 to rotate through the second rotating shaft 49, and then drives the tooth row 432 to slide through the first gear 481, thereby driving the lock tongue 43 to disengage from the lock groove 622.

[0056] Reference Figure 5 , Figure 7 and Figure 8 In an optional embodiment, the specific structure of the discharge pipe fitting 70, the clamping assembly 80, the twist driving member 90 and the hook member is as follows: the discharge pipe fitting 70 includes a lower telescopic tube 71 and a lower rotating tube 72, the lower telescopic tube 71 can be telescopically arranged at the lower end of the main tube 50, the lower rotating tube 72 can be rotatably arranged on the lower telescopic tube 71, and the bag mouth of the ton bag can be sleeved on the lower end of the lower rotating tube 72.

[0057] The clamping assembly 80 is arranged on the lower rotating tube 72 and is used to clamp the bag mouth of the ton bag that is sleeved on the lower end of the lower rotating tube 72. More specifically, the clamping assembly 80 includes an arc-shaped clamping plate 81 and a clamping spring 82. A bracket 722 is provided on the lower rotating tube 72. The arc-shaped clamping plate 81 has two pieces and is located on both sides of the lower rotating tube 72. A support 811 is provided on the arc-shaped clamping plate 81. The support 811 is slidably penetrated on the bracket 722. The clamping spring 82 is sleeved on the outside of the support 811. The two ends of the clamping spring 82 are respectively abutted against the arc-shaped clamping plate 81 and the bracket 722.

[0058] The screw driving component 90 is used to drive the lower rotating tube 72 to move along the axis and rotate around the axis. More specifically, the screw driving component 90 includes a screw motor 91 and a screw rod 92. The screw motor 91 is fixed on the main tube 50. The lower telescopic tube 71 is provided with a screw hole 711. The screw rod 92 is fixedly connected to the output shaft of the screw motor 91 and is screwed to the lower telescopic tube 71 through the screw hole 711. The lower rotating tube 72 is provided with a transmission ring gear 721. The screw rod 92 is provided with a transmission gear 921. The transmission gear 921 is meshed with the transmission ring gear 721.

[0059] A hanging column 31 is provided on the transfer platform 30 , and a hooking groove 311 is provided at the bottom end of the hanging column 31 . The hook member includes an electric push rod 120 , and the electric push rod 120 is fixed on the hanging column 31 . The telescopic rod 121 of the electric push rod 120 can be telescopically inserted into the hooking groove 311 .

[0060] The implementation principle of the weighing and packaging system for the production of food-grade heavy calcium carbonate in this embodiment is as follows: when the finished food-grade heavy calcium carbonate material needs to be packaged, the finished food-grade heavy calcium carbonate material in the storage bin is discharged into the weighing bucket 21, and the material in the weighing bucket 21 is weighed by the pressure sensor 22, and the feeding into the weighing bucket 21 is stopped when the predetermined weight is reached. At the same time, the sling hook of the ton bag is hung on the telescopic rod 121 of the electric push rod 120, and the bag mouth of the ton bag is sleeved on the lower end of the lower rotating tube 72, and then the bag mouth is clamped by the arc clamping plate 81 under the elastic force of the clamping spring 82. At this time, the magnet 623 is adsorbed on the first positioning plate 614.

[0061] Next, the transfer platform 30 is driven by the walking mechanism 100 to move along the circulating guide rail 110 until the upper rotating tube 62 is inserted into the tube groove 424, the boss 621 is plugged into the groove 421, and the lock tongue 43 is inserted into the lock groove 622. Then, the lifting module 41 drives the shaft push seat 42 to move upward to overcome the elastic force of the contraction spring 63 and drive the upper telescopic tube 61 and the upper rotating tube 62 to move upward until the upper rotating tube 62 is docked with the lower end of the discharge tube 130. Then, the valve 23 is opened to discharge the material in the weighing bucket 21 into the ton bag through the discharge tube 130, the receiving pipe 60, the main pipe 50 and the discharge pipe 70.

[0062] When the materials in the weighing bucket 21 are discharged, the ring seat 45 is driven to rotate 180° through the rotary drive member, thereby driving the lifting module 41, the shaft push seat 42 and the upper rotating tube 62 to rotate 180°. After the rotation, the opening direction of the tube groove 424 rotates 180°, the magnet 623 is adsorbed on the second positioning plate 615, the release block 47 abuts against the stopper 131, and the lock tongue 43 is driven to disengage from the lock groove 622 through the first rotating shaft 48 and the second rotating shaft 49. Then, the lifting module 41 drives the shaft push seat 42 to move downward, so that the upper rotating tube 62 is separated from the feeding tube 130, and then the travel mechanism 100 drives the transfer platform 30 to continue to move forward along the circulating guide rail 110, so that the upper rotating tube 62 is disengaged from the tube groove 424, and the ton bag is moved to the tying station.

[0063] When the ton bag moves to the tying station, the screw 92 is driven to rotate by the screw motor 91, and the lower telescopic tube 71 and the lower rotating tube 72 are driven to move downward by the screw 92. At the same time, the lower rotating tube 72 is driven to rotate by the transmission gear 921 and the transmission gear ring 721, and the bag mouth of the ton bag is screwed. After the screwing is completed, the staff uses a cable tie or a tying machine to tie the bag mouth. After the tying is completed, the transfer platform 30 is driven by the walking mechanism 100 to continue to move forward along the circulating guide rail 110 to reach the unloading station, and then the telescopic rod 121 of the electric push rod 120 is controlled to shrink, so that the sling of the ton bag is unhooked, and then the ton bag falls from the transfer platform 30 under the action of gravity. At the same time, the bag mouth of the ton bag overcomes the clamping force of the arc clamping plate 81 under the action of gravity and separates from the lower rotating tube 72, completing the weighing and packaging of food-grade heavy calcium carbonate.

[0064] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A weighing and packaging system for the production of food-grade heavy calcium carbonate, characterized in that: include: Frame (10); A weighing mechanism (20), the weighing mechanism (20) being arranged on the frame (10) and used for quantitatively weighing materials to be packaged; Circulation guide rail (110); A pre-hanging device, wherein the pre-hanging device is provided with at least two groups, and the pre-hanging device comprises a transfer platform (30), a butt joint pipe assembly and a hook member, respectively. The transfer platform (30) is provided on the circulating guide rail (110) and can circulate along the circulating guide rail (110). The butt joint pipe assembly and the hook member are provided on the transfer platform (30). The butt joint pipe assembly is used to communicate with the bag opening of the ton bag and can be docked with the weighing mechanism (20). The hook member is used to hook the sling of the ton bag.

2. A weighing and packaging system for producing food-grade heavy calcium carbonate according to claim 1, characterized in that: The invention also comprises a feed tube (130) and a docking drive member (40). The feed tube (130) is fixed on the frame (10) and is located below the weighing mechanism (20). The docking tube assembly comprises a main pipe (50), a material receiving pipe (60) and a material discharging pipe (70). The main pipe (50) is fixed on the transfer platform (30). The material receiving pipe (60) is telescopically arranged on the main pipe (50). The material discharging pipe (70) is connected to the main pipe (50) and is used to communicate with the bag opening of the ton bag. The docking drive member (40) is used to drive the material receiving pipe (60) to extend relative to the main pipe (50) and dock with the feed tube (130).

3. A weighing and packaging system for producing food-grade heavy calcium carbonate according to claim 2, characterized in that: The docking drive member (40) comprises a lifting module (41) and an axle push seat (42); the lifting module (41) is arranged on the discharge pipe (130); the axle push seat (42) is connected to the lifting module (41); a pipe groove (424) is provided on the axle push seat (42) for clamping the receiving pipe (60) from the side; when the receiving pipe (60) is clamped with the pipe groove (424), the lifting module (41) can drive the axle push seat (42) to move upward, so as to drive the receiving pipe (60) to extend relative to the main pipe (50) and dock with the discharge pipe (130).

4. A weighing and packaging system for producing food-grade heavy calcium carbonate according to claim 3, characterized in that: The docking drive member (40) further comprises a locking module, the locking module comprising a locking tongue (43) and a reset elastic member, the shaft push seat (42) is provided with a groove (421), the material receiving pipe member (60) is provided with a boss (621) which can be plugged into the groove (421), the boss (621) is provided with a locking groove (622), the locking tongue (43) is provided on the shaft push seat (42) and can be engaged with the locking groove (622), the reset elastic member is provided on the shaft push seat (42) and acts on the locking tongue (43).

5. A weighing and packaging system for producing food-grade heavy calcium carbonate according to claim 4, characterized in that: The docking drive member (40) further comprises a ring seat (45), a rotary drive member and a release module. The ring seat (45) is rotatably arranged on the feed tube (130). The rotary drive member is fixedly arranged on the feed tube (130) and connected to the ring seat (45). The lifting module (41) is fixedly arranged on the ring seat (45). The release module is used for driving the locking tongue (43) to disengage from the locking groove (622). The material receiving pipe member (60) comprises an upper telescopic pipe (61) and an upper rotating pipe (62). The upper telescopic pipe (61) is telescopically connected to the upper end of the main pipe (50). The upper rotating pipe (62) is rotatably connected to the upper telescopic pipe (61). The boss (621) is located on the upper rotating pipe (62).

6. A weighing and packaging system for producing food-grade heavy calcium carbonate according to claim 5, characterized in that: The release module comprises a release block (47), a stopper (131) is provided on the feed tube (130), the release block (47) is slidably arranged on the shaft push seat (42), and is connected with the locking tongue (43), when the ring seat (45) rotates around the axis of the feed tube (130), the release block (47) can abut against the stopper (131), when the release block (47) abuts against the stopper (131), the release block (47) can drive the locking tongue (43) to disengage from the locking groove (622).

7. A weighing and packaging system for producing food-grade heavy calcium carbonate according to claim 6, characterized in that: The release module also includes a first rotating shaft (48) and a second rotating shaft (49), the first rotating shaft (48) and the second rotating shaft (49) are rotatably arranged on the shaft push seat (42), the locking tongue (43) is provided with a tooth row (432), the first rotating shaft (48) is provided with a first gear (481) meshing with the tooth row (432), one end of the second rotating shaft (49) is connected to the first rotating shaft (48), and the other end is provided with a second gear (491), and the release block (47) is a rack structure and meshes with the second gear (491).

8. A weighing and packaging system for producing food-grade heavy calcium carbonate according to claim 2, characterized in that: The pre-hanging device also includes a clamping assembly (80) and a twisting drive member (90). The discharge pipe member (70) includes a lower telescopic tube (71) and a lower rotating tube (72). The lower telescopic tube (71) is telescopically arranged at the lower end of the main pipe (50). The lower rotating tube (72) is rotatably arranged on the lower telescopic tube (71). The bag mouth of a ton bag can be sleeved on the lower end of the lower rotating tube (72). The clamping assembly (80) is arranged on the lower rotating tube (72) and is used to clamp the bag mouth of the ton bag sleeved on the lower end of the lower rotating tube (72). The twisting drive member (90) is used to drive the lower rotating tube (72) to move along the axis and rotate around the axis.

9. A weighing and packaging system for producing food-grade heavy calcium carbonate according to claim 8, characterized in that: The rotating and twisting driving member (90) comprises a rotating and twisting motor (91) and a screw rod (92); the rotating and twisting motor (91) is fixedly mounted on the main pipe (50); a screw hole (711) is provided on the lower telescopic pipe (71); the screw rod (92) is fixedly connected to the output shaft of the rotating and twisting motor (91) and is screwed to the lower telescopic pipe (71) through the screw hole (711); a transmission gear ring (721) is provided on the lower rotating pipe (72); a transmission gear (921) is provided on the screw rod (92); and the transmission gear (921) is meshed with the transmission gear ring (721).

10. A weighing and packaging system for producing food-grade heavy calcium carbonate according to claim 1, characterized in that: The pre-hanging device also includes a walking mechanism (100), the walking mechanism (100) includes a support (101), a limiting wheel (102), a walking wheel (103) and a walking motor (104), the support (101) is rotatably connected to the transfer platform (30), the limiting wheel (102) and the walking wheel (103) are rotatably arranged on the transfer platform (30), the walking motor (104) is fixedly arranged on the support (101) and connected to the walking wheel (103), both sides of the circulating guide rail (110) are provided with limiting grooves (111), the limiting wheels (102) are respectively located on both sides of the limiting grooves (111) and are in rolling contact with the limiting grooves (111), the circulating guide rail (110) is provided with a supporting plate (112), and the walking wheel (103) is placed on the supporting plate (112).

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