Packaging device for water reducing agent production

Abstract

The invention provides a packaging device for water reducing agent production, and belongs to the technical field of water reducing agent production. The packaging device comprises a machine body, a hopper is installed on one side of the top of the machine body, a stirring mechanism is arranged in the hopper, a motor used for driving the stirring mechanism to rotate is installed on the hopper, and a discharging pipe is arranged at the bottom of the hopper in a communicating mode; a conveying belt is arranged below the discharging pipe, bases are arranged on the two sides of the bottom of the conveying belt, a supporting frame is fixedly connected to the tops of the bases, and a lifting frame is arranged on the inner side of the top end of the supporting frame in a sleeving mode; a mounting frame is arranged between the two lifting frames, and displacement assemblies are symmetrically arranged on the two sides of the mounting frame; a lifting assembly used for driving the lifting frame to move vertically is arranged between the base and the lifting frame. Compared with traditional filling equipment, according to the technical scheme, materials can fall more stably, the step of manually arranging bag openings by operators is omitted, the labor intensity of workers is reduced, and the procedure connection efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water-reducing agent production, and particularly relates to a packaging device for water-reducing agent production. BACKGROUND

[0002] Water-reducing agent is the most widely used high-performance additive in concrete engineering. Its core function is to reduce the binding force between particles by adsorbing on the surface of cement particles, optimize the cement hydration process, and significantly reduce the mixing water consumption while keeping the workability (flowability, cohesiveness, and water retention) of concrete unchanged. At the same time, it can also improve the durability of concrete, such as strength, impermeability, and frost resistance. Or under the same strength requirement, it can save cement consumption and reduce engineering cost. It is commonly used in various engineering scenarios such as high-strength concrete, pumping concrete, and mass concrete. It is a key material for realizing the high performance and greenization of concrete.

[0003] The production of powdery water-reducing agent requires core processes such as raw material pretreatment, chemical synthesis reaction, crystallization granulation, and crushing and screening. First, the raw materials such as polyether monomers and acrylic monomers are precisely proportioned and subjected to polymerization reaction in a reaction kettle to generate liquid water-reducing agent intermediates. Then, through spray drying tower drying, crushing equipment breaking, and classification screen screening, powdery finished products meeting particle size requirements are obtained. In the terminal link of the whole production process, the packaging link directly determines the product storage stability, transportation safety, and use convenience.

[0004] Referring to the Chinese patent document with publication number CN223212692U and the name of a bagging machine, it includes: a mounting table; the mounting table is provided with a telescopic corrugated barrel; the telescopic corrugated barrel top is connected with a feeding box, and the bottom is connected with a bag fixing cylinder; the feeding box is fixed on the mounting table; the feeding box top is provided with a feeding port, and the inside is provided with a slidable blocking plate; two bag opening fixing mechanisms are symmetrically arranged on the side surface of the bag fixing cylinder; the telescopic corrugated barrel is driven to stretch and retract by the cylinder. The document is provided with a telescopic corrugated barrel, which can adjust the length of the feeding pipe through the cylinder installed on the mounting table and the bottom connecting plate connected to the bottom of the telescopic corrugated barrel, to adapt to the needs of different size packaging bags, and improve the applicability of the equipment.

[0005] For the above technical solution, after the filling operation is completed, the bag opening clamping assembly releases the clamping and fixing of the packaging bag. The packaging bag filled with powdery water-reducing agent naturally falls onto the conveying belt of the subsequent conveying device under the action of its own gravity. Since the packaging bag may deviate when falling, the bag body may wrinkle or be skewed, etc., therefore, before entering the bag sealing process, manual opening alignment, bag body flattening, and conveying positioning correction operations are required, which not only increases the labor intensity of the operator, but also reduces the process connection efficiency, and the overall operation process is relatively complicated. SUMMARY

[0006] Therefore, the application provides a packaging device for water-reducing agent production, which mainly aims at solving the problem that the packaging bag is prone to deviation and wrinkling after being filled and dropped, and needs to be manually arranged before entering the next process, thereby increasing the labor intensity of the operator and reducing the process connection efficiency.

[0007] To solve the above technical problems, the application provides a packaging device for water-reducing agent production, which comprises a machine body, a hopper is installed on one side of the top of the machine body, a stirring mechanism is arranged in the hopper, a motor for driving the stirring mechanism to rotate is installed on the hopper, a discharge pipe is communicatively arranged at the bottom of the hopper, a conveying belt is arranged below the discharge pipe, a base is arranged on both sides of the bottom of the conveying belt, a support frame is fixedly connected to the top of the base, and a lifting frame is sleeved on the inner side of the top end of the support frame; a mounting frame is arranged between the two lifting frames, displacement assemblies are symmetrically arranged on both sides of the mounting frame; a lifting assembly for driving the lifting frame to move vertically is arranged between the base and the lifting frame; two symmetrically distributed supporting plates are arranged at the output end of the displacement assembly, and a fixed plate matched with the supporting plates is arranged on the mounting frame; mounting seats are arranged on both sides of the mounting frame, a turnover frame is hingedly connected to the middle part of the mounting seat, a pressing rod for arranging the bag opening is arranged at the bottom of the turnover frame, and a driving assembly for driving the turnover frame to turn over is arranged on the mounting frame.

[0008] By adopting the above technical scheme, during the filling process, as the filling amount of the material in the packaging bag increases, the lifting assembly can drive the packaging bag to gradually move downward, thereby reducing the material falling height and effectively reducing the dust generation; after the filling operation is completed, the lifting assembly drives the mounting frame and the packaging bag full of material to slowly move downward, so that the packaging bag is stably dropped on the conveying belt, avoiding the problems of position skewing and bag body wrinkling due to excessive impact force of the material falling. Then, the driving assembly drives the turnover frame to turn over around the hinge between the turnover frame and the mounting seat, and drives the pressing rods on both sides of the packaging bag to move towards each other; at the same time, the lifting assembly drives the mounting frame to slightly move upward, so that the supporting plates are extracted from the packaging bag; in this process, the pressing rods can flatten and align the bag opening of the packaging bag, so that the bag opening is regular in shape, and manual arrangement is not needed before entering the next bag sewing process, thereby effectively reducing the labor intensity of the operator and improving the process connection efficiency.

[0009] Optionally, a top rod is fixedly connected to the top of the turnover frame, and a cross rod is fixedly connected between the two supporting plates; the driving assembly can drive the turnover frame to turn over so that the top rod hits the cross rod, and the corresponding supporting plate vibrates.

[0010] By adopting the above technical scheme, before the support plate is pulled out of the bag opening of the packaging bag, the driving assembly can drive the turnover frame to make reciprocating turnover movement, so that the top rod at the top of the turnover frame repeatedly hits the cross rod between the support plates, and then drives the support plates to vibrate; the vibration can promote the water reducing agent material attached to the surface of the support plate to quickly fall off and fall into the packaging bag, effectively avoiding the material from scattering on the surface of the conveying belt, thereby preventing the problem of environmental pollution caused by material leakage.

[0011] Optionally, the top of the pressing rod is fixedly connected with a sleeve frame, the bottom of the turnover frame is fixedly connected with a vertical plate, and the vertical plate is inserted into the sleeve frame; a plurality of through holes are arranged on the vertical plate in a linear arrangement along the length direction of the vertical plate, and a insertion hole is arranged on the sleeve frame in a horizontal direction, and a insertion shaft is inserted into the insertion hole; a positioning member is arranged on the sleeve frame and used for limiting the insertion shaft.

[0012] By adopting the above technical scheme, the height of the pressing rod can be flexibly adjusted during use, different specifications of packaging bags can be adapted, and the bag opening arrangement effect is stable, thereby effectively improving the applicability of the equipment and reducing the use limitation.

[0013] Optionally, the positioning member includes a sleeve and a screw rod, the sleeve is fixedly connected to one side of the sleeve frame, and a threaded hole is formed in the sleeve; the screw rod is fixedly connected to one end of the insertion shaft close to the sleeve, and the screw rod is inserted into the threaded hole and threadedly matched with the sleeve to lock and position the insertion shaft.

[0014] Optionally, a plurality of horizontal strip-shaped protrusions are arranged on the side of the support plate away from the discharging pipe, and a groove matched with the strip-shaped protrusions is formed in the side of the fixed plate close to the support plate.

[0015] By adopting the above technical scheme, when the support plate cooperates with the fixed plate, the strip-shaped protrusions can be embedded into the corresponding grooves, the relative movement resistance between the packaging bag and the fixed plate and the support plate is effectively increased, and then the fixation of the packaging bag is more stable and reliable, and problems such as displacement and loosening of the packaging bag during the filling or lifting process are effectively avoided.

[0016] Optionally, the lifting assembly includes a first linear driver and a horizontal plate, the first linear driver is vertically installed at the middle of the base, and the output end of the first linear driver is fixedly connected with the bottom of the horizontal plate; a strip-shaped hole is formed in the top of the side of the support frame close to the first linear driver, and the strip-shaped hole is matched with the horizontal plate.

[0017] Optionally, the displacement assembly includes a movable plate, two connecting plates and a second linear driver, the two connecting plates are symmetrically arranged on the two sides of the movable plate and are slidably inserted into the mounting bracket; the second linear driver is fixedly installed at the top of the mounting bracket, and the output end of the second linear driver is fixedly connected with the movable plate to drive the movable plate to reciprocally move along the extension direction of the connecting plate.

[0018] Optionally, the driving assembly comprises a mounting plate and a third linear driver, the mounting plate is fixedly connected to the mounting frame, one end of the third linear driver is hingedly connected to the mounting plate, and the other end is hingedly connected to the sleeve frame to drive the turnover frame to turn around the hinge between the turnover frame and the mounting base.

[0019] Optionally, the two side edges of the mounting frame perpendicular to the conveying direction of the conveying belt are both arc-shaped structures upwardly arched.

[0020] By adopting the above technical scheme, the hand operation space of the worker when sleeving the packaging bag outside the supporting plate can be effectively expanded, so that the worker does not need to complete the bag sleeving and positioning actions in a narrow gap, the hand movement range is more sufficient when sleeving the bag, the operation action is more easy to perform, the convenience and smoothness of the bag sleeving operation are significantly improved, and the overall bag sleeving operation efficiency is effectively improved.

[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, the present application has at least one of the following beneficial technical effects:

[0023] 1. By arranging the liftable bag body fixing mechanism and the bag body arrangement structure, after the filling operation is completed, the packaging bag filled with materials can be stably placed on the conveying belt, and the bag opening can be automatically arranged, so that it can directly enter the next process without manual intervention. At the same time, the relative height of the packaging bag and the discharge pipe can be adjusted according to the material falling speed, the material falling height is effectively reduced, and the dust in the falling process is reduced. Compared with the traditional filling equipment, the present technical scheme can make the packaging bag fall more stably, which not only saves the step of manual arrangement of the bag opening by the operator, but also reduces the labor intensity of the worker, and greatly improves the process connection efficiency.

[0024] 2. Through the cooperation of the turnover frame, the driving assembly and the cross rod, before the supporting plate is pulled out of the packaging bag, the driving assembly can drive the turnover frame to periodically reciprocate, drive the top rod at the top of the turnover frame to repeatedly hit the cross rod between the supporting plates, and then drive the supporting plates to vibrate. The vibration can promote the rapid falling of the residual water reducing agent material attached to the surface of the supporting plate into the packaging bag, effectively avoiding the material spilling onto the conveying belt or the working area during the pulling out of the supporting plate, thereby preventing the surrounding environmental pollution problem caused by material leakage, and ensuring the cleanliness of the working environment. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole structure schematic view of a packaging device for water reducing agent production; Figure 2 It is a right view structure schematic view of a packaging device for water reducing agent production; Figure 3Figure 1 is a schematic structural diagram of the mounting frame, displacement assembly and bag arranging assembly in the present application; Figure 4 Figure 2 is a schematic structural diagram of the front view of the bag arranging assembly in the present application; Figure 5 Figure 3 is a schematic structural diagram of the right view of the supporting plate, fixed plate and driving assembly in the present application; Figure 6 Figure 4 is a schematic structural diagram of the cross-section of the sleeve and vertical plate in the present application; Figure 7 Figure 5 is a schematic diagram of the working state of the bag arranging assembly in the present application.

[0026] Figure 6 is a schematic diagram of the working state of the bag arranging assembly in the present application. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the embodiments of the present application with the drawings for a better understanding of the present application. Figures 1-7 The technical scheme of the embodiments of the present application is described clearly and completely. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0028] Reference Figure 1 and Figure 2The embodiment provides a packaging device for water-reducing agent production, which comprises a machine body 1, a conveying belt 2, a filling mechanism, a bag body fixing mechanism and a bag body arrangement assembly. The machine body 1 serves as a support and control core of the whole device, and a metering system and a control system are integrated in the machine body 1. The feeding end of the machine body 1 is connected with a feeding mechanism outside the machine body 1, so that the powdery water-reducing agent can be orderly conveyed to the filling mechanism. The metering system is used for accurately controlling the filling amount of the material, so that each bag of product meets the set standard and the metering error is effectively reduced. The control system serves as a central unit, receives working signals (such as bag body in place, filling weight up to standard, etc.) fed back by each component, and drives the feeding, filling, conveying and other systems to realize automatic collaborative operation, so that the device is stable and reliable and the process connection efficiency is ensured. The filling mechanism is installed on the machine body 1, and the discharging end of the filling mechanism corresponds to the bag body fixing mechanism and is used for conveying the material to the packaging bag in a quantitative manner. The bag body fixing mechanism is arranged below the filling mechanism and above the conveying belt 2, is used for supporting and fixing the opening end of the packaging bag, and cooperates with the filling mechanism to realize stable filling of the material. The bag body arrangement assembly is arranged in cooperation with the bag body fixing mechanism, is used for automatically flattening and aligning the bag opening of the packaging bag after filling, and replaces manual arrangement operation. The conveying belt 2 is arranged below the filling mechanism and the bag body fixing mechanism in a horizontal direction, is used for receiving the packaging bag after filling, and conveys the packaging bag to the next process (such as bag sewing). It should be noted that the metering system and the control system both adopt mature prior art in the field, and the specific structure and working principle will not be described in detail here.

[0029] Referring to Figure 1 and Figure 2 , the filling mechanism comprises a hopper 11, a discharging pipe 12, a motor 13 and a stirring mechanism. The discharging pipe 12 is fixedly connected to the bottom of the hopper 11 and is in communication with the inside of the hopper 11. The stirring mechanism is rotatably arranged in the hopper 11. The motor 13 is fixed to the top of the hopper 11, and the output shaft of the motor 13 extends into the hopper 11 and is in transmission connection with the stirring mechanism, so as to drive the stirring mechanism to rotate.

[0030] The powdery water-reducing agent to be filled is temporarily stored in the hopper 11. During the filling operation, the material flows out from the discharging end of the discharging pipe 12 in a quantitative manner. In this process, the motor 13 drives the stirring mechanism to continuously rotate in the hopper 11, so as to stir and disperse the internal material, effectively break the bridging and caking of the material in the hopper 11, ensure smooth falling of the material along the discharging pipe 12, and ensure continuous and stable filling operation.

[0031] Referring to Figure 1 , Figure 3 and Figure 5The bag fixing mechanism comprises a base 3, a support frame 31, a lifting frame 32, a mounting frame 35, a support plate 43, a fixing plate 5, a lifting assembly and a displacement assembly. The base 3, the support frame 31, the lifting frame 32, the lifting assembly and the displacement assembly are all in two groups, and the two groups of components are symmetrically arranged on both sides of the conveying belt 2; the support frame 31 is fixedly connected to the middle part of the base 3, the lifting frame 32 is movably sleeved on the inner side of the top end of the support frame 31 and can be lifted along the height direction of the support frame 31; the mounting frame 35 is a rectangular frame structure, the mounting frame 35 is fixedly connected between the two lifting frames 32, and the two displacement assemblies are symmetrically distributed on both sides of the mounting frame 35; the output end of each displacement assembly is fixedly connected with two symmetrically distributed support plates 43, and the fixing plate 5 is fixedly connected to the bottom of the mounting frame 35, the number and position of which are one-to-one matched with the support plates 43, and is used for clamping the packaging bag together with the support plates 43.

[0032] Specifically, the lifting assembly comprises a first linear driver 33 and a cross plate 321, the first linear driver 33 is vertically installed in the middle part of the base 3, and the output end thereof is fixedly connected with the bottom of the cross plate 321; a strip-shaped hole 311 is formed in the top part of the side of the support frame 31 close to the first linear driver 33, the cross plate 321 is slidably arranged in the strip-shaped hole 311 and is fixedly connected with the bottom end of the lifting frame 32, the cross plate 321 is driven to slide up and down along the strip-shaped hole 311 by the extension and contraction of the first linear driver 33, thereby driving the lifting frame 32 and the mounting frame 35 to synchronously lift.

[0033] Specifically, the displacement assembly comprises a movable plate 4, two connecting plates 41 and a second linear driver 42, the two connecting plates 41 are symmetrically arranged on both sides of the movable plate 4 and are slidably inserted into the mounting holes correspondingly formed in the mounting frame 35, thereby forming a guide support; the second linear driver 42 is fixedly arranged on the top of the mounting frame 35, and the output end thereof is fixedly connected with the movable plate 4, thereby driving the movable plate 4 to reciprocate along the horizontal direction, thereby driving the two support plates 43 to approach or move away from the fixing plate 5, and realizing the clamping and loosening of the packaging bag.

[0034] The bag clamping assembly of the existing filling equipment is usually directly arranged outside the discharging pipe 12, and the operator manually sleeves the packaging bag opening end outside the periphery of the discharging pipe 12 during operation, and then clamps and fixes the packaging bag opening end by the clamping assembly. During this operation process, because the installation distance between the discharging pipe 12 and the clamping assembly is small, the hand movement space of the operator is limited during the sleeve bag and positioning operation; and the clamping assembly has the mechanical linkage type action response characteristic, which easily causes the safety hazard of the hand being mistakenly clamped. The operation mode of "sleeving the bag first and then moving to the discharging pipe 12" is adopted in the embodiment, which effectively expands the hand operation space of the operator during the sleeve bag operation, reduces the safety risk during the sleeve bag process, and helps to improve the sleeve bag operation efficiency.

[0035] When the operator sets the open end of the packaging bag outside the support plate 43, the two groups of displacement assemblies simultaneously drive the corresponding components to move in opposite directions, driving each support plate 43 to approach the corresponding fixed plate 5; in this process, the packaging bag opening is expanded, and at the same time, the clamping force between the support plate 43 and the fixed plate 5 makes the packaging bag firmly fixed below the mounting rack 35. Then the lifting assembly drives the lifting frame 32 to drive the mounting rack 35 and the packaging bag to move upwards until the open end of the packaging bag and the bottom of the feeding pipe 12 maintain a predetermined distance, thereby reducing the material falling height and reducing dust generation. During filling, the lifting assembly continuously drives the mounting rack 35 and the packaging bag to slowly move downward as the material filling amount increases, so that the discharge end of the feeding pipe 12 always maintains a set distance from the material surface in the bag, avoiding dust leakage from the source. After the filling operation is completed, the lifting assembly continues to drive the mounting rack 35 to move downward until the packaging bag filled with material contacts the conveying surface of the conveying belt 2, so that the packaging bag falls smoothly onto the conveying belt 2, effectively avoiding the position deviation of the bag body, and providing good conditions for the subsequent bag opening arrangement process.

[0036] Among them, referring to Figure 3 、 Figure 4 、 Figure 5 and Figure 7 , the bag arrangement assembly includes a mounting seat 52, a turnover frame 53, a pressing rod 54, and a driving assembly. The mounting seat 52, the turnover frame 53, the pressing rod 54, and the driving assembly are all configured in two groups, and the two groups of components are symmetrically arranged on both sides of the center axis of the mounting rack 35; wherein the mounting seat 52 is fixedly connected to the outer side of the middle part of the mounting rack 35, the turnover frame 53 is hinged to the middle part of the mounting seat 52, and can freely turn around the hinge axis of the two; the pressing rod 54 is assembled at the bottom of the turnover frame 53, and the driving assembly is installed on the mounting rack 35, used to drive the turnover frame 53 to complete the turning action around the hinge axis.

[0037] The driving assembly includes a mounting plate 6 and a third linear driver 61, the mounting plate 6 is fixedly connected to the mounting rack 35, one end of the third linear driver 61 is hinged to the mounting plate 6, and the other end is hinged to the sleeve frame 541. Through the extension and retraction drive of the third linear driver 61, the turnover frame 53 can be turned around the hinge between it and the mounting seat 52.

[0038] When the packaging bag containing materials falls stably on the conveying belt 2, the displacement assembly drives the supporting plate 43 to reset, so that the distance between the supporting plate 43 and the fixed plate 5 is increased, and the clamping and limiting of the packaging bag are released; the driving assembly drives the turnover frame 53 to overturn, and the pressing rod 54 at the bottom of the turnover frame 53 moves towards the packaging bag. Under the synchronous action of the two groups of pressing rods 54, the packaging bag is folded inward on both sides of the bag opening, so that the opening size of the bag opening is reduced; then the lifting assembly drives the mounting frame 35 to slowly move upward, and the supporting plate 43 is gradually pulled out from the top of the packaging bag. In this process, the pressing rod 54 moves vertically upward along the bag body, and the bag opening is flattened, aligned and arranged, thereby laying a good foundation for the subsequent bag sewing process. The structure can complete the bag opening arrangement operation synchronously while releasing the clamping and limiting of the packaging bag, without manual intervention, thereby effectively improving the process connection efficiency and the overall packaging operation efficiency.

[0039] In addition, referring to Figure 3 、 Figure 4 and Figure 7 , the top of the turnover frame 53 is fixedly connected with a top rod 55, and the two supporting plates 43 on the same displacement assembly are fixedly connected with a cross rod 432, and the positions of the top rod 55 and the cross rod 432 correspond to each other; the driving assembly can drive the turnover frame 53 to overturn around the hinge shaft, so that the top rod 55 strikes the cross rod 432, and the corresponding supporting plate 43 vibrates.

[0040] In the filling operation, the powdery water reducing agent material is easy to adhere to the surface of the supporting plate 43. If not cleaned in time, the adhered material may fall onto the conveying belt 2 or the working area when the packaging bag is transferred and the supporting plate 43 is reset, causing environmental pollution. After the above structure is adopted, after the supporting plate 43 releases the clamping and limiting of the packaging bag, the driving assembly first drives the top of the turnover frame 53 to overturn towards the supporting plate 43, so that the top rod 55 thereon periodically strikes the cross rod 432; through the impact force transmission generated by the impact, the supporting plate 43 is vibrated, so that the material adhered to the surface of the supporting plate 43 is quickly detached and falls into the packaging bag below, effectively avoiding the leakage of the material onto the surface of the conveying belt 2, and solving the problem of environmental pollution caused by material scattering from the source.

[0041] Referring to Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , the top of the pressing rod 54 is fixedly connected with a sleeve frame 541, the bottom of the turnover frame 53 is fixedly connected with a vertical plate 531, and the vertical plate 531 is inserted into the sleeve frame 541 in the vertical direction; a plurality of through holes 532 linearly arranged along the length direction of the vertical plate 531 are formed in the vertical plate 531, a plug hole 544 penetrating in the horizontal direction is formed in the sleeve frame 541, and a plug shaft 543 is inserted into the plug hole 544; a positioning member is arranged on the sleeve frame 541 and used for axially limiting the plug shaft 543, so as to ensure the stability of the adjusted height position.

[0042] Specifically, the positioning member includes a sleeve 542 and a screw rod 545. The sleeve 542 is fixedly connected to one side of the sleeve frame 541, and a threaded hole is formed in the interior of the sleeve 542. The screw rod 545 is fixedly connected to one end of the insertion shaft 543 close to the sleeve 542. When the insertion shaft 543 is inserted into the insertion hole 544 and the selected through hole 532, the screw rod 545 can be screwed into the threaded hole of the sleeve 542, and the insertion shaft 543 is locked and positioned through the threaded cooperation, so that the pressing rod 54 is stably fixed at the adjusted height position.

[0043] In actual production, the specifications and sizes of the packaging bags and the weights of the internal filling materials need to be flexibly adjusted according to the production order requirements. In order to ensure that the device can maintain stable and reliable bag opening arrangement effect for packaging bags of different specifications, the embodiment adopts a height-adjustable structure design: when the height of the pressing rod 54 needs to be adjusted, the positioning member is used to release the locking constraint of the insertion shaft 543 on the sleeve frame 541, and then the sleeve frame 541 can be driven to slide up and down along the length direction of the vertical plate 531. After the pressing rod 54 is adjusted to the target height suitable for the current packaging bag specification, the insertion shaft 543 is sequentially inserted through the insertion hole 544 of the sleeve frame 541 and the through hole 532 at the corresponding height of the vertical plate 531, and then the insertion shaft 543 is locked and fixed by the positioning member, so that the height of the pressing rod 54 is stable during operation. The design makes the height of the pressing rod 54 flexible to adjust according to actual needs, which can adapt to packaging bags of different heights and specifications, ensures the consistency and stability of the bag opening arrangement effect, significantly improves the application range and universality of the device, and effectively reduces the use limitation.

[0044] Referring to Figure 2 , Figure 3 , Figure 5 and Figure 7 , the side of the support plate 43 away from the blanking pipe 12 is uniformly arranged with a plurality of strip-shaped protrusions 431 in the horizontal direction, and the side of the fixed plate 5 facing the support plate 43 is provided with a groove 51 matched with the strip-shaped protrusions 431.

[0045] When the support plate 43 and the fixed plate 5 clamp the packaging bag, the strip-shaped protrusions 431 can be embedded in the corresponding grooves 51, so as to increase the friction resistance and biting degree between the packaging bag and the support plate 43 and the fixed plate 5, so that the clamping and fixing of the packaging bag is more stable and reliable, and the risk of displacement and loosening of the packaging bag during filling, lifting and other operations is effectively avoided.

[0046] Referring to Figure 1 , Figure 2 and Figure 3 , the two side edges of the mounting frame 35 perpendicular to the conveying direction of the conveying belt 2 are both arc-shaped structures upwardly arched.

[0047] The arc-shaped structure design can further expand the hand movement space of the operator when the bag is sleeved, avoid the interference between the hand and the side of the mounting frame 35 during operation, make the bag sleeving operation more convenient and smooth, reduce the operation difficulty, and improve the operation convenience.

[0048] With reference to Figure 1 The inclined plate 34 is fixedly connected between the base 3 and the support frame 31, and forms a triangular support structure together with the base 3 and the support frame 31, plays a role of a reinforcing rib, effectively improves the structural stability and load capacity of the support frame 31, and ensures that the support frame 31 maintains structural rigidity during operation such as lifting and clamping.

[0049] The implementation principle of the packaging device for water reducing agent production is as follows: The external feeding mechanism delivers the powdery water reducing agent into the hopper 11 of the machine body 1 for temporary storage, the metering system integrated on the machine body 1 presets the filling amount standard, and the control system coordinates the actions of various components. During filling, the motor 13 drives the stirring mechanism in the hopper 11 to continuously rotate, breaks the bridging and caking of the material, and ensures that the material has stable falling flowability, laying a foundation for quantitative filling.

[0050] The operator sets the open end of the packaging bag on the outer side of the support plate 43, and after the bag is sleeved, the second linear drivers 42 on the two groups of displacement assemblies drive the movable plate 4 to drive the support plate 43 to move close to the fixed plate 5, the strip-shaped protrusions 431 on the support plate 43 are embedded into the corresponding grooves 51 on the fixed plate 5, and the stable clamping of the packaging bag is realized through frictional resistance and biting action, and the bag opening is expanded to adapt to the filling requirement.

[0051] The lifting assembly drives the horizontal plate 321 to slide up and down along the strip-shaped hole 311 of the support frame 31 through the first linear driver 33, and drives the mounting frame 35 and the clamped packaging bag to synchronously lift. Before filling, the lifting frame 32 drives the packaging bag to move upwards, so that the bag opening and the bottom of the feeding pipe 12 maintain a predetermined distance, and the material falling height is reduced; during filling, as the filling amount of the material in the bag increases, the lifting assembly continuously drives the packaging bag to slowly move downwards, so that the discharge end of the feeding pipe 12 always maintains a reasonable distance from the material surface, and the dust leakage is inhibited; after filling is completed, the lifting assembly continues to move downwards, and the packaging bag filled with material is stably placed on the conveying belt 2, so as to avoid the bag body from deviating.

[0052] After the bag falls on the conveying surface of the conveying belt 2, the displacement assembly drives the support plate 43 to reset through the second linear driver 42, so as to increase the spacing between the support plate 43 and the fixed plate 5 and release the clamping constraint on the bag body. Subsequently, the third linear driver 61 drives the turnover frame 53 to overturn, drives the top rod 55 to move towards the support plate 43 and complete the periodic impact action and then resets; the top rod 55 periodically impacts the horizontal rod 432 in the overturning process, drives the support plate 43 to vibrate through the impact force transmission and promotes the material residues attached to the surface of the support plate 43 to quickly fall into the bag body below. After the vibration cleaning is completed, the third linear driver 61 drives the turnover frame 53 to reverse overturn, drives the pressing rod 54 to move towards the bag body and synchronously folds the two sides of the bag opening; at the same time, the lifting assembly drives the mounting frame 35 to slowly move upwards, so that the support plate 43 moves out of the bag body, and the pressing rod 54 slides vertically upwards along the bag body and performs the flattening treatment on the bag opening, so as to provide good conditions for the subsequent bag sewing process.

[0053] After the bag opening arrangement is completed, the conveying belt 2 is started to convey the packaged material to the next process such as bag sewing and stacking.

[0054] The above is the preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the principles described in the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A packaging device for producing a water-reducing agent, comprising a body (1), wherein a hopper (11) is installed on one side of the top of the body (1), a stirring mechanism is provided inside the hopper (11), a motor (13) for driving the stirring mechanism to rotate is installed on the hopper (11), a discharge pipe (12) is provided at the bottom of the hopper (11), and a conveyor belt (2) is provided below the discharge pipe (12), characterized in that: The conveyor belt (2) has bases (3) on both sides of its bottom. A support frame (31) is fixedly connected to the top of the base (3). A lifting frame (32) is sleeved on the inner side of the top of the support frame (31). An installation frame (35) is provided between the two lifting frames (32). Displacement components are symmetrically provided on both sides of the installation frame (35). A lifting component for driving the lifting frame (32) to move vertically is provided between the base (3) and the lifting frame (32). The output end of the displacement component is provided with two symmetrically distributed support plates (43), and the mounting frame (35) is provided with a fixing plate (5) that is compatible with the support plates (43); both sides of the mounting frame (35) are provided with mounting seats (52), and the middle of the mounting seat (52) is hinged with a flipping frame (53). The bottom of the flipping frame (53) is provided with a pressure rod (54) for sorting the bag opening, and the mounting frame (35) is provided with a driving component for driving the flipping frame (53) to flip.

2. The packaging device for water-reducing agent production according to claim 1, characterized in that: The top of the flipping frame (53) is fixedly connected to a top rod (55), and a crossbar (432) is fixedly connected between the two support plates (43); the driving component can drive the flipping frame (53) to flip so that the top rod (55) hits the crossbar (432), causing the corresponding support plate (43) to vibrate.

3. The packaging device for water-reducing agent production according to claim 2, characterized in that: The top of the pressure rod (54) is fixedly connected to a sleeve (541), and the bottom of the flipping frame (53) is fixedly connected to a vertical plate (531). The vertical plate (531) is inserted into the sleeve (541). The vertical plate (531) is provided with a plurality of through holes (532) arranged linearly along its length. The sleeve (541) is provided with insertion holes (544) arranged in the horizontal direction. Insertion shafts (543) are inserted into the insertion holes (544). The sleeve (541) is provided with positioning components for limiting the insertion shafts (543).

4. A packaging device for water-reducing agent production according to claim 3, characterized in that: The positioning component includes 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). The screw (545) passes through the threaded hole and is threadedly engaged with the sleeve (542) to lock and position the insertion shaft (543).

5. A packaging device for producing water-reducing agents according to claim 1, characterized in that: The support plate (43) has multiple horizontally arranged strip protrusions (431) on the side away from the feed pipe (12), and the fixing plate (5) has a groove (51) that matches the strip protrusions (431) on the side close to the support plate (43).

6. A packaging device for producing water-reducing agents according to claim 1, characterized in that: The lifting assembly includes a first linear driver (33) and a horizontal plate (321). The first linear driver (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 driver (33), and the strip hole (311) is adapted to the horizontal plate (321).

7. A packaging device for producing water-reducing agents according to claim 1, characterized in that: The displacement assembly includes a movable plate (4), two connecting plates (41), and a second linear driver (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 mounting frame (35). The second linear driver (42) is fixedly mounted on the top of the mounting frame (35), and its output end is fixedly connected to the movable plate (4) to drive the movable plate (4) to reciprocate along the extension direction of the connecting plates (41).

8. A packaging device for producing water-reducing agents according to claim 3, characterized in that: 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) to drive the flipping frame (53) to flip around the hinge point between it and the mounting base (52).

9. A packaging device for producing water-reducing agents according to claim 1, characterized in that: The mounting frame (35) has two sides that are perpendicular to the conveying direction of the conveyor belt (2) and are both arched upwards.

10. A packaging device for producing water-reducing agents according to claim 1, characterized in that: An inclined plate (34) is fixedly connected between the base (3) and the support frame (31) to enhance the structural stability of the support frame (31).

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