Packaging device for water-reducing agent production

Abstract

This application provides a packaging device for water-reducing agent production, belonging to the field of water-reducing agent production technology. It includes a machine body, with a hopper installed on one side of the top of the machine body. A stirring mechanism is installed inside the hopper, and a motor is installed on the hopper to drive the stirring mechanism to rotate. A discharge pipe is connected to the bottom of the hopper, and a conveyor belt is installed below the discharge pipe. Bases are provided on both sides of the bottom of the conveyor belt, and support frames are fixedly connected to the top of the bases. A lifting frame is fitted inside the top of the support frame. An installation frame is provided between the two lifting frames, and displacement components are symmetrically arranged on both sides of the installation frame. A lifting component for driving the vertical movement of the lifting frames is provided between the bases and the lifting frames. Compared with traditional filling equipment, this technical solution allows for smoother material descent, eliminating the need for operators to manually adjust the bag openings, reducing labor intensity, and significantly improving process efficiency.

Description

Technical Field

[0001] This application relates to the field of water-reducing agent production technology, specifically to a packaging device for water-reducing agent production. Background Technology

[0002] Water-reducing agents are the most widely used high-performance admixtures in concrete engineering. Their core function is to reduce the interparticle bonding force and optimize the cement hydration process by adsorbing onto the surface of cement particles while maintaining the workability (flowability, cohesiveness, and water retention) of concrete, thereby significantly reducing the amount of mixing water. At the same time, they can simultaneously improve the strength, impermeability, frost resistance, and other durability properties of concrete, or save cement usage under the same strength requirements, thus reducing project costs. They are commonly used in various engineering scenarios such as high-strength concrete, pumped concrete, and large-volume concrete, and are key materials for achieving high-performance and green concrete.

[0003] The production of powdered water-reducing agents requires core processes such as raw material pretreatment, chemical synthesis reaction, crystallization granulation, and crushing and sieving. First, raw materials such as polyether monomers and acrylic monomers are polymerized in a reactor through precise proportioning to generate liquid water-reducing agent intermediates. Then, the intermediates are dried in a spray drying tower, crushed by pulverizing equipment, and sieved by a grading sieve to obtain powdered finished products that meet the particle size requirements. At the final stage of the entire production process, the packaging stage directly determines the product's storage stability, transportation safety, and ease of use.

[0004] Referring to Chinese patent document CN223212692U, entitled "A Bag Filling Machine," the device includes: a mounting platform; a telescopic corrugated cylinder mounted on the mounting platform; a feed box connected to the top of the telescopic corrugated cylinder and a bag-fixing cylinder connected to the bottom; the feed box fixed to the mounting platform; a feed inlet on the top of the feed box and a sliding baffle plate inside; two bag-fixing mechanisms symmetrically arranged on the side of the bag-fixing cylinder; and the telescopic corrugated cylinder extending and retracting via a cylinder. This patent document describes a telescopic corrugated cylinder, where the length of the feeding pipe can be adjusted via a cylinder mounted on the mounting platform and a bottom connecting plate connected to the bottom of the telescopic corrugated cylinder to accommodate the filling needs of different sized bags, thus improving the applicability of the equipment.

[0005] Regarding the above technical solution, after the filling operation is completed, the bag clamping assembly releases its grip on the packaging bag, and the packaging bag filled with powdered water-reducing agent falls naturally onto the conveyor belt of the subsequent conveying device under its own weight. Because the packaging bag is prone to opening misalignment, wrinkles, or misalignment when falling, manual adjustments are required before entering the sewing process. These adjustments include aligning the opening, flattening the bag, and correcting the conveyor positioning. This manual intervention not only increases the labor intensity of the operators but also reduces the efficiency of process connections, making the overall operation process quite cumbersome. Summary of the Invention

[0006] In view of this, this application provides a packaging device for the production of water-reducing agents, which is mainly used to solve the problem that after the packaging bag is dropped during the filling process, it is easy for the packaging bag to shift and wrinkle, requiring manual sorting before it can enter the next process, which leads to increased labor intensity for operators and reduced efficiency of process connection.

[0007] To solve the above-mentioned technical problems, this application provides a packaging device for water-reducing agent production, including a machine body. A hopper is installed on one side of the top of the machine body. A stirring mechanism is installed inside the hopper. A motor for driving the stirring mechanism to rotate is installed on the hopper. A discharge pipe is connected to the bottom of the hopper. A conveyor belt is installed below the discharge pipe. Bases are provided on both sides of the bottom of the conveyor belt. A support frame is fixedly connected to the top of the base. A lifting frame is sleeved on the inner side of the top of the support frame. An installation frame is provided between the two lifting frames. Displacement components are symmetrically arranged on both sides of the installation frame. A lifting component for driving the lifting frame to move vertically is provided between the base and the lifting frame. Two symmetrically distributed support plates are provided at the output end of the displacement component. A fixing plate adapted to the support plates is provided on the installation frame. Mounting seats are provided on both sides of the mounting frame. A flipping frame is hinged to the middle of the mounting seat. A pressure bar for adjusting the bag opening is provided at the bottom of the flipping frame. A driving component for driving the flipping frame to flip is provided on the mounting frame.

[0008] By adopting the above technical solution, during the filling process, as the amount of material inside the packaging bag increases, the lifting component can gradually move the packaging bag downwards, thereby reducing the material drop height and effectively reducing dust generation. After the filling operation is completed, the lifting component drives the mounting frame and the packaging bag filled with material to slowly move downwards, allowing the packaging bag to fall smoothly onto the conveyor belt, avoiding problems such as misalignment and wrinkles caused by excessive impact from the falling material. Subsequently, the drive component drives the flipping frame to flip around its hinge with the mounting base, causing the pressure bars on both sides of the packaging bag to move towards each other. At the same time, the lifting component drives the mounting frame to move slightly upwards, allowing the support plate to be pulled out of the packaging bag. During this process, the pressure bars can level and align the bag opening, making the bag opening shape regular. It can directly enter the next sewing process without manual intervention, effectively reducing the labor intensity of operators and improving the efficiency of process connection.

[0009] Optionally, a top rod is fixedly connected to the top of the tilting frame, and a crossbar is fixedly connected between the two support plates; the drive assembly can drive the tilting frame to tilt so that the top rod hits the crossbar, causing the corresponding support plate to vibrate.

[0010] By adopting the above technical solution, before the support plate is pulled out from the bag opening, the drive component can drive the tilting frame to perform reciprocating tilting motion, so that the top rod of the tilting frame repeatedly hits the crossbar between the support plates, thereby causing the support plates to vibrate; this vibration can cause the water-reducing agent material attached to the surface of the support plate to fall off quickly and into the bag, effectively preventing the material from scattering onto the surface of the conveyor belt, thereby preventing the problem of environmental pollution caused by material leakage.

[0011] Optionally, a sleeve is fixedly connected to the top of the pressure rod, and a vertical plate is fixedly connected to the bottom of the flipping frame. The vertical plate is inserted into the sleeve. The vertical plate is provided with multiple through holes arranged linearly along its length. The sleeve is provided with insertion holes arranged in the horizontal direction, and insertion shafts are inserted into the insertion holes. The sleeve is provided with positioning components for limiting the insertion shafts.

[0012] By adopting the above technical solution, the height of the pressure bar can be flexibly adjusted during use, which can adapt to packaging bags of different specifications and ensure stable bag opening sorting effect, thereby effectively improving the applicability of the equipment and reducing its usage limitations.

[0013] Optionally, the positioning component includes a sleeve and a screw. The sleeve is fixedly connected to one side of the sleeve frame, and a threaded hole is provided inside the sleeve. The screw is fixedly connected to one end of the insertion shaft near the sleeve, and the screw passes through the threaded hole and is threadedly engaged with the sleeve to lock and position the insertion shaft.

[0014] Optionally, the support plate has multiple horizontally arranged strip-shaped protrusions on the side away from the feed pipe, and the fixing plate has a groove on the side near the support plate that matches the strip-shaped protrusions.

[0015] By adopting the above technical solution, when the support plate and the fixing plate cooperate, the strip protrusion can be embedded in the corresponding groove, which effectively increases the relative movement resistance between the packaging bag and the fixing plate and support plate, thereby making the packaging bag more stable and reliable, and effectively avoiding problems such as displacement and loosening of the packaging bag during filling or lifting.

[0016] Optionally, the lifting assembly includes a first linear drive and a horizontal plate. The first linear drive is vertically installed in the middle of the base, and its output end is fixedly connected to the bottom of the horizontal plate. The support frame has a strip-shaped hole on the top side near the first linear drive, and the strip-shaped hole is adapted to the horizontal plate.

[0017] Optionally, the displacement assembly includes a movable plate, two connecting plates, and a second linear actuator. The two connecting plates are symmetrically arranged on both sides of the movable plate and are slidably inserted into the mounting frame. The second linear actuator is fixedly mounted on the top of the mounting frame, and its output end is fixedly connected to the movable plate to drive the movable plate to reciprocate along the extension direction of the connecting plates.

[0018] Optionally, the drive assembly includes a mounting plate and a third linear actuator. The mounting plate is fixedly connected to the mounting bracket, and one end of the third linear actuator is hinged to the mounting plate and the other end is hinged to the sleeve to drive the tilting frame to tilt around the hinge point between it and the mounting base.

[0019] Optionally, the two sides of the mounting frame perpendicular to the conveying direction of the conveyor belt are both upward-arched arc-shaped structures.

[0020] By adopting the above technical solution, the hand operation space of the staff can be effectively expanded when placing the packaging bag on the outside of the support plate. This eliminates the need for the operator to complete the bagging and positioning actions in a narrow gap. The range of hand movement is more sufficient when bagging, and the operation is easier to perform, which significantly improves the convenience and smoothness of the bagging operation, thereby effectively improving the overall bagging efficiency.

[0021] Optionally, an inclined plate is fixedly connected between the base and the support frame to enhance the structural stability of the support frame.

[0022] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0023] 1. By incorporating a height-adjustable bag fixing mechanism and a bag sorting structure, after the filling operation is completed, the fully filled bags can be smoothly lowered onto the conveyor belt, and the bag openings can be automatically sorted, allowing them to proceed directly to the next process without manual intervention. Simultaneously, the equipment can adjust the relative height between the packaging bag and the feeding pipe according to the material falling speed, effectively reducing the material falling height and minimizing dust generation during the falling process. Compared to traditional filling equipment, this technical solution makes the packaging bags fall more smoothly, eliminating the need for operators to manually sort the bag openings, reducing worker labor intensity, and significantly improving process efficiency.

[0024] 2. Through the coordinated operation of the tilting frame, drive assembly, and crossbars, the drive assembly can drive the tilting frame to perform periodic reciprocating rotations before the support plate is pulled out of the packaging bag. This causes the top rod at the top to repeatedly strike the crossbars between the support plates, thereby causing the support plates to vibrate. This vibration can cause the residual water-reducing agent material adhering to the surface of the support plate to quickly fall off and into the packaging bag, effectively preventing the material from spilling onto the conveyor belt or work area during the removal of the support plate. This prevents environmental pollution caused by material leakage and ensures a clean working environment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a packaging device for producing a water-reducing agent according to this application;

[0026] Figure 2 This is a right-side structural schematic diagram of a packaging device for the production of a water-reducing agent according to this application;

[0027] Figure 3 This is a structural schematic diagram of the mounting frame, displacement assembly, and bag sorting assembly in this application;

[0028] Figure 4 This is a front view structural diagram of the bag-forming component in this application;

[0029] Figure 5 This is a right-side structural schematic diagram of the support plate, fixing plate, and drive assembly in this application;

[0030] Figure 6 This is a cross-sectional structural diagram of the frame and vertical plate in this application;

[0031] Figure 7 This is a schematic diagram showing the working state of the bag sorting component in this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Machine body; 11. Hopper; 12. Feeding pipe; 13. Motor; 2. Conveyor belt; 3. Base; 31. Support frame; 311. Strip hole; 32. Lifting frame; 321. Horizontal plate; 33. First linear drive; 34. Inclined plate; 35. Mounting frame; 4. Movable plate; 41. Connecting plate; 42. Second linear drive; 43. Support plate; 431. Strip protrusion; 432. Crossbar; 5. Fixed plate; 51. Groove; 52. Mounting seat; 53. Tilting frame; 531. Vertical plate; 532. Through hole; 54. Pressure rod; 541. Sleeve; 542. Sleeve; 543. Insert shaft; 544. Insertion hole; 545. Screw; 55. Top rod; 6. Mounting plate; 61. Third linear drive. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will be combined with the embodiments of this application. Figures 1-7 The technical solutions of the embodiments of this application are clearly and completely described herein. All other embodiments obtained by those skilled in the art based on the described embodiments are within the scope of protection of this application.

[0034] Reference Figure 1 and Figure 2This embodiment provides a packaging device for water-reducing agent production, including a machine body 1, a conveyor belt 2, a filling mechanism, a bag fixing mechanism, and a bag sorting component. The machine body 1 serves as the overall support and control core of the equipment, integrating a metering system and a control system. The feeding end of the machine body 1 is connected to an external feeding mechanism to ensure the orderly delivery of powdered water-reducing agent to the filling mechanism. The metering system precisely controls the material filling volume, ensuring each bag meets the set standards and effectively reducing metering errors. The control system, as the central unit, receives working signals from various components (such as bag positioning and filling weight reaching the standard), and coordinates with the feeding, filling, and conveying systems to achieve automated and collaborative operation, ensuring equipment stability, reliability, and efficient process integration. The filling mechanism is installed on the machine body 1, with its feeding end corresponding to the bag fixing mechanism, used to quantitatively deliver material into the packaging bag. The bag fixing mechanism is located below the filling mechanism and above the conveyor belt 2, used to open the packaging bag opening and clamp and fix it, working with the filling mechanism to achieve stable material filling. The bag sorting component works in conjunction with the bag fixing mechanism to automatically level and align the bag openings after filling, replacing manual sorting. The conveyor belt 2 is arranged horizontally below the filling and bag fixing mechanisms to receive the filled bags and transport them to the next process (such as sewing). It should be noted that both the metering and control systems utilize mature existing technologies in this field; their specific structures and working principles will not be detailed here.

[0035] Among them, reference Figure 1 and Figure 2 The filling mechanism includes a hopper 11, a feeding pipe 12, a motor 13, and a stirring mechanism. The feeding pipe 12 is fixedly connected to the bottom of the hopper 11 and communicates with the interior of the hopper 11. The stirring mechanism is rotatably disposed inside the hopper 11. The motor 13 is fixedly mounted on the top of the hopper 11, and its output shaft extends into the interior of the hopper 11 and is connected to the stirring mechanism for driving its rotation. The stirring mechanism adopts mature existing technology in this field, and its specific structure and working principle will not be described in detail here.

[0036] The powdered water-reducing agent material to be filled is temporarily stored inside the hopper 11. During the filling operation, the material flows out quantitatively through the discharge end of the feed pipe 12. During this process, the motor 13 drives the stirring mechanism to rotate continuously inside the hopper 11 to stir and disperse the material inside. This can effectively break up the bridging and clumping of the material in the hopper 11, ensuring that the material falls smoothly along the feed pipe 12 and ensuring the continuous and stable operation of the filling operation.

[0037] Among them, reference Figure 1 , Figure 3 and Figure 5The bag fixing mechanism includes a base 3, a support frame 31, a lifting frame 32, a mounting frame 35, support plates 43, a fixing plate 5, a lifting assembly, and a displacement assembly. There are two sets of each of the base 3, support frame 31, lifting frame 32, lifting assembly, and displacement assembly, symmetrically arranged on both sides of the conveyor belt 2. The support frame 31 is fixedly connected to the middle of the base 3, and the lifting frame 32 is movably fitted inside the top of the support frame 31, allowing it to rise and fall along the height of the support frame 31. The mounting frame 35 is a rectangular frame structure, fixedly connected between the two lifting frames 32, and two displacement assemblies are symmetrically distributed on both sides of the mounting frame 35. Each displacement assembly has two symmetrically distributed support plates 43 fixedly connected to its output end. The fixing plate 5 is fixedly connected to the bottom of the mounting frame 35, with its number and position matching the support plates 43, used to clamp the packaging bag in conjunction with the support plates 43.

[0038] Specifically, the lifting assembly includes a first linear actuator 33 and a horizontal plate 321. The first linear actuator 33 is vertically installed in the middle of the base 3, and its output end is fixedly connected to the bottom of the horizontal plate 321. The support frame 31 has a strip hole 311 on the top side near the first linear actuator 33. The horizontal plate 321 slides through the strip hole 311 and is fixedly connected to the bottom of the lifting frame 32. The horizontal plate 321 slides up and down along the strip hole 311 through the extension and retraction of the first linear actuator 33, thereby driving the lifting frame 32 and the mounting frame 35 to lift synchronously.

[0039] Specifically, the displacement assembly includes a movable plate 4, two connecting plates 41, and a second linear actuator 42. The two connecting plates 41 are symmetrically arranged on both sides of the movable plate 4, and the connecting plates 41 are slidably inserted into the corresponding mounting holes of the mounting frame 35 to form a guide support. The second linear actuator 42 is fixedly mounted on the top of the mounting frame 35, and its output end is fixedly connected to the movable plate 4. It is used to drive the movable plate 4 to move back and forth in the horizontal direction, thereby driving the two support plates 43 to move closer to or away from the fixed plate 5, so as to realize the clamping and loosening of the packaging bag.

[0040] In existing filling equipment, the bag clamping assembly is typically located directly outside the feed tube 12. During operation, the operator must manually place the open end of the packaging bag onto the outer circumference of the feed tube 12, and then use the clamping assembly to hold and fix the open end of the packaging bag. During this operation, the small installation distance between the feed tube 12 and the clamping assembly restricts the operator's hand movement space when bagging and positioning the bag; furthermore, the clamping assembly's mechanical linkage response characteristics easily lead to the safety hazard of accidental hand clamping. This embodiment adopts a "bag-fixing first, then moving to the feed tube 12" operation method, effectively expanding the operator's hand operation space during bagging, reducing safety risks during the bagging process, and helping to improve bagging efficiency.

[0041] After the operator places the open end of the packaging bag onto the outside of the support plate 43, the two sets of displacement components simultaneously drive the corresponding parts to move in opposite directions, causing each support plate 43 to move closer to the corresponding fixed plate 5. During this process, the opening of the packaging bag is opened, and the clamping force between the support plate 43 and the fixed plate 5 secures the packaging bag firmly under the mounting frame 35. Subsequently, the lifting component drives the lifting frame 32 to move the mounting frame 35 and the packaging bag upwards until the opening end of the packaging bag maintains a preset distance from the bottom of the discharge pipe 12, thereby reducing the material drop height and minimizing dust generation. During the filling process, the lifting component continuously drives the mounting frame 35 and the packaging bag to slowly move downwards as the material filling increases, ensuring that the discharge end of the discharge pipe 12 always maintains a set distance from the surface of the material inside the bag, preventing dust leakage from the source. After the filling operation is completed, the lifting component continues to drive the mounting frame 35 downwards until the packaging bag filled with material contacts the conveyor surface of the conveyor belt 2, allowing the packaging bag to fall smoothly onto the conveyor belt 2, effectively preventing the bag from shifting position and providing good conditions for the subsequent bag opening sorting process.

[0042] Among them, reference Figure 3 , Figure 4 , Figure 5 and Figure 7 The bag sorting assembly includes a mounting base 52, a flipping frame 53, a pressure bar 54, and a drive assembly. The mounting base 52, flipping frame 53, pressure bar 54, and drive assembly are configured in two sets, with the two sets of components symmetrically arranged on both sides of the mounting frame 35 along its central axis. The mounting base 52 is fixed to the outer middle portion of the mounting frame 35, and the flipping frame 53 is hinged to the middle portion of the mounting base 52, allowing it to freely flip around the hinge axis. The pressure bar 54 is mounted on the bottom of the flipping frame 53, and the drive assembly is mounted on the mounting frame 35 to drive the flipping frame 53 to complete the flipping action around the hinge axis.

[0043] The drive assembly includes a mounting plate 6 and a third linear actuator 61. The mounting plate 6 is fixedly connected to the mounting bracket 35. One end of the third linear actuator 61 is hinged to the mounting plate 6, and the other end is hinged to the sleeve 541. Through the telescopic drive of the third linear actuator 61, the flipping frame 53 can be driven to flip around the hinge point between it and the mounting base 52.

[0044] After the packaging bag containing the material falls smoothly onto the conveyor belt 2, the displacement component drives the support plate 43 to reset, increasing the distance between the support plate 43 and the fixed plate 5, thus releasing the clamping limit on the packaging bag. The drive component drives the flipping frame 53 to flip, causing the pressure bar 54 at its bottom to move closer to the bag body. Under the synchronous action of the two sets of pressure bars 54, the two sides of the bag opening are pulled inward, reducing the size of the bag opening. Subsequently, the lifting component drives the mounting frame 35 to slowly move upward, and the support plate 43 is gradually pulled out from the top of the packaging bag. During this process, the pressure bar 54 moves vertically upward along the bag body, leveling and aligning the bag opening, laying a good foundation for the subsequent sewing process. This structure can simultaneously complete the bag opening adjustment operation while releasing the packaging bag clamping constraint, without manual intervention, effectively improving the efficiency of process connection, and thus improving the overall packaging operation efficiency.

[0045] Additionally, refer to Figure 3 , Figure 4 and Figure 7 A top rod 55 is fixedly connected to the top of the tilting frame 53, and a crossbar 432 is fixedly connected between two support plates 43 located on the same displacement component, with the top rod 55 and the crossbar 432 corresponding to each other; the drive component can drive the tilting frame 53 to tilt around the hinge axis, so that the top rod 55 hits the crossbar 432, causing the corresponding support plate 43 to vibrate.

[0046] During the filling process, powdered water-reducing agent material easily adheres to the surface of the support plate 43. If not cleaned in time, as the packaging bag is transferred and the support plate 43 is reset, the adhered material may scatter onto the conveyor belt 2 or the work area, causing environmental pollution. With the above structure, after the support plate 43 releases its clamping constraint on the packaging bag, the drive component first drives the top of the tilting frame 53 to tilt towards the support plate 43, causing the top rod 55 on it to periodically strike the crossbar 432. Through the impact force generated by the impact, the support plate 43 vibrates, causing the material adhering to the surface of the support plate 43 to quickly fall off and into the packaging bag below, effectively preventing material leakage onto the surface of the conveyor belt 2, and solving the problem of environmental pollution caused by material scattering from the source.

[0047] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6 The top of the pressure rod 54 is fixedly connected to the sleeve 541, and the bottom of the flipping frame 53 is fixedly connected to the vertical plate 531. The vertical plate 531 is inserted into the sleeve 541 in the vertical direction. The vertical plate 531 has multiple through holes 532 arranged linearly along its length. The sleeve 541 has a through hole 544 in the horizontal direction. The insertion shaft 543 is inserted into the insertion hole 544. The sleeve 541 is provided with a positioning component to axially limit the insertion shaft 543 and ensure that the adjusted height position is stable.

[0048] Specifically, the positioning components include a sleeve 542 and a screw 545. The sleeve 542 is fixedly connected to one side of the sleeve frame 541, and a threaded hole is provided inside the sleeve 542. The screw 545 is fixedly connected to one end of the insertion shaft 543 near the sleeve 542. When the insertion shaft 543 passes through the insertion hole 544 and the selected through hole 532, the screw 545 can be screwed into the threaded hole of the sleeve 542. The insertion shaft 543 is locked and positioned through the threaded engagement, thereby firmly fixing the pressure rod 54 at the adjusted height position.

[0049] In actual production, the specifications and dimensions of the packaging bags and the weight of the filling materials need to be flexibly adjusted according to the production order requirements. To ensure that the equipment can maintain a stable and reliable bag opening finishing effect for packaging bags of different specifications, this embodiment adopts a height-adjustable structural design: when it is necessary to adjust the height of the pressure rod 54, the locking constraint of the insert shaft 543 on the sleeve 541 is first released by the positioning component, and then the sleeve 541 can be driven to slide up and down along the length of the vertical plate 531; after the pressure rod 54 is adjusted to the target height that matches the current packaging bag specification, the insert shaft 543 is sequentially inserted through the insertion hole 544 of the sleeve 541 and the through hole 532 of the vertical plate 531 at the corresponding height, and then the insert shaft 543 is locked and fixed by the positioning component to ensure that the pressure rod 54 maintains a stable height during operation. This design allows the height of the pressure rod 54 to be flexibly adjusted according to actual needs, which can adapt to packaging bags of different heights and specifications, ensure the consistency and stability of the bag opening finishing effect, significantly improve the applicability and versatility of the equipment, and effectively reduce its usage limitations.

[0050] Reference Figure 2 , Figure 3 , Figure 5 and Figure 7 On the side of the support plate 43 away from the feed pipe 12, multiple strip-shaped protrusions 431 are evenly arranged in the horizontal direction. On the side of the fixing plate 5 facing the support plate 43, there are grooves 51 that are adapted to the strip-shaped protrusions 431.

[0051] When the support plate 43 and the fixing plate 5 are used to clamp the packaging bag, the strip protrusion 431 can be embedded in the corresponding groove 51. By increasing the frictional resistance and the degree of engagement between the packaging bag and the support plate 43 and the fixing plate 5, the clamping and fixing of the packaging bag becomes more stable and reliable, effectively avoiding the risk of displacement or loosening of the packaging bag during filling, lifting and other operations.

[0052] Reference Figure 1 , Figure 2 and Figure 3 The two sides of the mounting frame 35 that are perpendicular to the conveying direction of the conveyor belt 2 are both upward-arched arc structures.

[0053] The arc-shaped structure design can further expand the hand movement space of the staff when bagging, avoid interference between the hands and the side of the mounting frame 35 during the operation, make the bagging action more convenient and smooth, reduce the difficulty of operation, and improve the convenience of operation.

[0054] Reference Figure 1 An inclined plate 34 is fixedly connected between the base 3 and the support frame 31. The inclined plate 34, together with the base 3 and the support frame 31, forms a triangular support structure, which acts as a reinforcing rib, effectively improving the structural stability and load-bearing capacity of the support frame 31, and ensuring that it maintains structural rigidity during lifting, clamping and other operations.

[0055] The implementation principle of a packaging device for water-reducing agent production according to an embodiment of this application is as follows:

[0056] An external feeding mechanism delivers powdered water-reducing agent to the hopper 11 of the machine body 1 for temporary storage. The metering system integrated on the machine body 1 is preset with a filling volume standard, and the control system coordinates the actions of all components. During filling, the motor 13 drives the stirring mechanism inside the hopper 11 to rotate continuously, breaking up material bridging and clumping, ensuring that the material has stable downward flowability, and laying the foundation for quantitative filling.

[0057] The operator places the open end of the packaging bag onto the outside of the support plate 43. After the bag is placed, the second linear actuator 42 on the two sets of displacement components synchronously drives the movable plate 4 to move the support plate 43 closer to the fixed plate 5. The strip protrusion 431 on the support plate 43 is embedded into the corresponding groove 51 on the fixed plate 5. The packaging bag is firmly clamped by frictional resistance and biting action, while the bag opening is opened to meet the filling requirements.

[0058] The lifting assembly drives the horizontal plate 321 to slide up and down along the strip hole 311 of the support frame 31 via the first linear driver 33, thereby driving the mounting frame 35 and the clamped packaging bag to rise and fall synchronously. Before filling, the lifting frame 32 moves the packaging bag upward to maintain a preset distance between the bag opening and the bottom of the discharge pipe 12, reducing the material drop height. During the filling process, as the amount of material in the bag increases, the lifting assembly continuously moves the packaging bag slowly downward to ensure that the discharge end of the discharge pipe 12 always maintains a reasonable distance from the material surface, suppressing dust leakage. After filling, the lifting assembly continues to move downward, placing the packaging bag filled with material smoothly on the conveyor belt 2 to prevent the bag from shifting.

[0059] After the packaging bag falls onto the conveyor surface of conveyor belt 2, the displacement component drives the support plate 43 to reset via the second linear driver 42, increasing the distance between the support plate 43 and the fixed plate 5 and releasing the clamping constraint on the bag. Subsequently, the third linear driver 61 drives the flipping frame 53 to flip, causing the top rod 55 to move towards the support plate 43 and reset after completing a periodic impact action; during the flipping process, the top rod 55 periodically impacts the crossbar 432, and the impact force is transmitted to cause the support plate 43 to vibrate, causing the material residue attached to its surface to quickly fall off into the bag below. After the vibration cleaning is completed, the third linear driver 61 drives the flipping frame 53 to flip in the opposite direction, causing the pressure rod 54 to move towards the bag, simultaneously closing the two sides of the bag opening; at the same time, the lifting component drives the mounting frame 35 to slowly move upward, causing the support plate 43 to move out of the bag, and the pressure rod 54 slides vertically upward along the bag, leveling the bag opening and providing good conditions for the subsequent sewing process.

[0060] After the bag opening is finished, conveyor belt 2 starts and transports the packaged materials to the next process such as sewing and stacking.

[0061] The above description is the preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principles described in this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A packaging device for producing a water-reducing agent, comprising a machine body, a hopper mounted on one side of the top of the machine body, a stirring mechanism disposed inside the hopper, a motor mounted on the hopper for driving the stirring mechanism to rotate, a discharge pipe connected to the bottom of the hopper, and a conveyor belt disposed below the discharge pipe, characterized in that: The conveyor belt has bases on both sides of its bottom, and a support frame is fixedly connected to the top of the base. A lifting frame is fitted inside the top of the support frame. An installation frame is provided between the two lifting frames, and displacement components are symmetrically arranged on both sides of the installation frame. A lifting component for driving the vertical movement of the lifting frame is provided between the base and the lifting frame. The output end of the displacement component is provided with two symmetrically distributed support plates, and the mounting frame is provided with a fixing plate that matches the support plates; both sides of the mounting frame are provided with mounting seats, the middle of the mounting seat is hinged with a flipping frame, the bottom of the flipping frame is provided with a pressure bar for sorting the bag opening, and the mounting frame is provided with a drive component for driving the flipping frame to flip. A top rod is fixedly connected to the top of the flipping frame, and a crossbar is fixedly connected between the two support plates. The drive assembly can drive the flipping frame to flip so that the top rod hits the crossbar, causing the corresponding support plate to vibrate and causing the material residue attached to its surface to quickly fall into the bag below. After the vibration cleaning is completed, the drive assembly drives the flipping frame to flip in the opposite direction, causing the pressure bar to move towards the bag body and simultaneously close the two sides of the bag opening. At the same time, the lifting assembly drives the mounting frame to slowly move upward, so that the support plate moves out of the bag body, and the pressure bar slides vertically upward along the bag body to level the bag opening.

2. The packaging device for water-reducing agent production according to claim 1, characterized in that: The top of the pressure rod is fixedly connected to a sleeve, and the bottom of the flipping frame is fixedly connected to a vertical plate, which is inserted into the sleeve. The vertical plate is provided with multiple through holes arranged linearly along its length. The sleeve is provided with insertion holes arranged in the horizontal direction, and insertion shafts are inserted into the insertion holes. The sleeve is provided with positioning components for limiting the insertion shafts.

3. The packaging device for water-reducing agent production according to claim 2, characterized in that: The positioning component includes a sleeve and a screw. The sleeve is fixedly connected to one side of the sleeve frame, and a threaded hole is provided inside the sleeve. The screw is fixedly connected to one end of the insertion shaft near the sleeve. The screw passes through the threaded hole and is threadedly engaged with the sleeve to lock and position the insertion shaft.

4. The packaging device for water-reducing agent production according to claim 1, characterized in that: The support plate has multiple horizontally arranged strip-shaped protrusions on the side away from the feed pipe, and the fixing plate has a groove on the side near the support plate that matches the strip-shaped protrusions.

5. A packaging device for producing water-reducing agents according to claim 1, characterized in that: The lifting assembly includes a first linear drive and a horizontal plate. The first linear drive is vertically installed in the middle of the base, and its output end is fixedly connected to the bottom of the horizontal plate. The support frame has a strip-shaped hole on the top side near the first linear drive, and the strip-shaped hole is adapted to the horizontal plate.

6. A packaging device for producing water-reducing agents according to claim 1, characterized in that: The displacement assembly includes a movable plate, two connecting plates, and a second linear actuator. The two connecting plates are symmetrically arranged on both sides of the movable plate and are slidably inserted into the mounting frame. The second linear actuator is fixedly mounted on the top of the mounting frame, and its output end is fixedly connected to the movable plate to drive the movable plate to reciprocate along the extension direction of the connecting plates.

7. A packaging device for water-reducing agent production according to claim 2, characterized in that: The drive assembly includes a mounting plate and a third linear actuator. The mounting plate is fixedly connected to the mounting bracket. One end of the third linear actuator is hinged to the mounting plate, and the other end is hinged to the bracket to drive the rotating frame to rotate around the hinge point between it and the mounting base.

8. A packaging device for producing water-reducing agents according to claim 1, characterized in that: The mounting frame has two sides perpendicular to the conveying direction of the conveyor belt, both of which are upward-arched arc-shaped structures.

9. A packaging device for producing water-reducing agents according to claim 1, characterized in that: An inclined plate is fixedly connected between the base and the support frame to enhance the structural stability of the support frame.

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