Modular weighing mechanism of a chemical fertilizer packaging machine

Abstract

The utility model discloses a modularization weighing mechanism of chemical fertilizer packaging machine relates to packaging equipment technical field, and this modularization weighing mechanism of chemical fertilizer packaging machine includes: base, including conveyer belt and vertical plate, and vertical plate is equipped with a plurality of vertical guide slot, adjusting assembly includes floating bearing seat, and a plurality of floating bearing seat are slidably connected with vertical guide slot, roller group includes driving roller and driven roller, and driving roller is rotatably connected with vertical plate, and driven roller sets up in the both sides of driving roller, and weighing assembly includes elastic part and pressure sensor, and elastic part sets up in base, and the top of elastic part is connected with floating bearing seat, and pressure sensor is spaced apart with elastic part and sets up. The utility model discloses through a plurality of independent floating bearing seat and weighing assembly, realizes a plurality of floating bearing seat independent weighing, eliminates the interference that uneven distribution of material leads to to, and through the modularization installation of a plurality of floating bearing seat, shortens maintenance repair time, and increases production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a modular weighing mechanism for a fertilizer packaging machine. Background Technology

[0002] Fertilizer is an essential material in agricultural production. It refers to fertilizer made by chemical methods or by processing minerals. In the fertilizer production process, the produced fertilizer granules need to be fed into a packaging machine for packaging. During the packaging process, weighing equipment is used to weigh the fertilizer material before it is packaged.

[0003] However, existing weighing equipment has the following drawbacks: low measurement accuracy; the use of lever or cantilever weighing structures means that the measurement points may vary due to material deformation during transport (especially for moisture-absorbing and caking fertilizers), which can significantly affect accuracy; and high maintenance costs, as the weighing unit and rollers are integrated, making maintenance and repair difficult and affecting production continuity.

[0004] Therefore, there is a need for a modular weighing mechanism that is easy to maintain and repair while having high measurement accuracy. Utility Model Content

[0005] The main purpose of this utility model is to provide a modular weighing mechanism for fertilizer packaging machines, which aims to solve the problems of difficult maintenance and low measurement accuracy of existing fertilizer packaging machine weighing mechanisms.

[0006] To achieve the above objectives, the modular weighing mechanism for the fertilizer packaging machine proposed in this utility model includes:

[0007] The base includes a conveyor belt and upright plates. The upright plates are symmetrically arranged on both sides of the conveyor belt, and multiple vertical guide grooves are provided on the inner side of the upright plates on both sides in the vertical direction.

[0008] An adjustment assembly, comprising multiple floating bearing seats, which are slidably connected to the vertical guide groove and symmetrically arranged on the inner walls of the upright plates on both sides.

[0009] A roller assembly, comprising a drive roller and a driven roller, wherein the drive roller is rotatably connected to the vertical plate, and the driven rollers are arranged on both sides of the drive roller along the movement direction of the conveyor belt, the axis of the driven roller is parallel to that of the drive roller, and the driven rollers are rotatably connected to the floating bearing seat.

[0010] A weighing assembly includes an elastic element and a pressure sensor. The elastic element is disposed on the base corresponding to the bottom end of the vertical guide groove. The top end of the elastic element is connected to the floating bearing seat. The pressure sensor is connected to the bottom end of the floating bearing seat and is spaced apart from the elastic element.

[0011] Preferably, the adjustment assembly further includes a slider, which is symmetrically arranged on both sides of the floating bearing seat and is slidably connected to the inner wall of the vertical guide groove.

[0012] Preferably, the base is further provided with a guide post, the guide post is disposed in the vertical guide groove at a distance from the pressure sensor, the guide post passes through the floating bearing seat in the vertical direction, and the elastic element is sleeved on the guide post.

[0013] Preferably, the modular weighing mechanism further includes a limiting device, which includes a limiting block and a limiting bolt. The two limiting blocks are disposed at the vertical ends of the vertical guide groove, and the limiting blocks are fixedly connected to the vertical plate by the limiting bolts passing through the vertical plate.

[0014] Preferably, the weighing assembly further includes an upper elastic element seat and a lower elastic element seat. The lower elastic element seat is fixedly disposed on the base and abuts against the bottom end of the elastic element. The upper elastic element seat is disposed at the bottom end of the floating bearing seat and abuts against the top end of the elastic element. The upper elastic element seat and the lower elastic element seat enclose an elastic space, and the elastic element is located within the elastic space.

[0015] Preferably, the weighing assembly further includes a first preload nut and a second preload nut, the first preload nut being vertically inserted through the floating bearing seat and abutting against the top end of the upper elastic element seat, and the second preload nut being vertically inserted through the base and abutting against the bottom end of the lower elastic element seat.

[0016] Preferably, the modular weighing mechanism further includes a drive motor, which is disposed on the outside of the base and is connected to the drive roller key.

[0017] The modular weighing mechanism of this fertilizer packaging machine uses multiple pressure sensors and elastic elements connected in parallel between the floating bearing seats and the base to achieve independent weighing of multiple floating bearing seats, eliminating lateral torque interference caused by uneven material distribution. Furthermore, through the modular installation of multiple floating bearing seats, the weighing and measurement layout can be adjusted according to actual production needs, shortening maintenance and repair time, adapting to the production and processing of different materials, and increasing production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the weighing component and the adjusting component according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the floating bearing seat and the driven roller in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of a modular weighing mechanism according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the drive motor and base according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the limiting device according to an embodiment of the present invention.

[0024] Explanation of icon numbers:

[0025] label name label name 1000 Modular weighing mechanism 100 base 110 Conveyor belt 120 uprights 121 Vertical guide groove 130 frame 140 Guide column 200 Adjustment components 210 Floating bearing housing 220 slider 300 Roller assembly 310 Active roller 320 Driven roller 400 Weighing components 410 elastic element 420 pressure sensor 430 Elastic element upper seat 440 Elastic element lower seat 450 First preload nut 460 Second preload nut 500 Limiting device 510 Limit block 520 Limit bolt 600 drive motor

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators in this embodiment are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] like Figures 1-5 As shown, this utility model proposes a modular weighing mechanism 1000 for a fertilizer packaging machine, comprising: a base 100, the base 100 including a conveyor belt 110 and upright plates 120, the upright plates 120 being symmetrically arranged along both sides of the conveyor belt 110, and the inner sides of the upright plates 120 being provided with multiple vertical guide grooves 121 in the vertical direction; an adjustment assembly 200, the adjustment assembly 200 including multiple floating bearing seats 210, the multiple floating bearing seats 210 being slidably connected to the vertical guide grooves 121 and symmetrically arranged on the inner walls of the upright plates 120 on both sides; and a roller assembly 300, the roller assembly 300 including a drive roller 310 and a drive roller 310. Driven roller 320 and drive roller 310 are rotatably connected to vertical plate 120. Driven roller 320 is arranged on both sides of drive roller 310 along the movement direction of conveyor belt 110. Driven roller 320 and drive roller 310 are parallel to each other. Driven roller 320 is rotatably connected to floating bearing seat 210. Weighing assembly 400 includes elastic element 410 and pressure sensor 420. The bottom end of elastic element 410 corresponding to the vertical guide groove 121 is arranged on base 100. The top end of elastic element 410 is connected to floating bearing seat 210. Pressure sensor 420 is connected to the bottom end of floating bearing seat 210 and is spaced apart from elastic element 410.

[0031] In this embodiment, the base 100 also includes a frame 130. A conveyor belt 110 is disposed at the top of the frame 130. Material moves along the direction of movement of the conveyor belt 110. The base 100 has upright plates 120 on its left and right sides along the direction of movement of the conveyor belt 110. The bottom of the upright plates 120 is welded to the frame 130. The frame 130 is fixedly connected to the ground by fixing bolts. Multiple vertical guide grooves 121 are provided on the inner side of the upright plates 120 along the direction of movement of the conveyor belt 110, and the vertical guide grooves 121 on the left and right upright plates 120 are symmetrically arranged. The drive roller... The drive roller 310 is positioned between two vertical guide grooves 121 on the same side and is rotatably connected to the upright plate 120. The floating bearing seat 210 in the adjusting assembly 200 is positioned inside the vertical guide groove 121 and is slidably connected to the groove wall of the vertical guide groove 121. The driven roller 320 is rotatably connected to the floating bearing seat 210. The driven roller 320 can move up and down along the vertical guide groove 121 through the floating bearing seat 210. That is, the drive roller 310 and the driven roller 320 are spaced apart, and the movement of the driven roller 320 along the vertical guide groove 121 does not interfere with the operation of the drive roller 310. The pressure sensor 420 in the weighing assembly 400 is spaced apart from the elastic element 410 and is vertically positioned to achieve independent operation of adjusting the preload and measuring the pressure. The elastic element 410 is a spring and is positioned between the bottom wall of the vertical guide groove 121 and the floating bearing seat 210. The two ends of the pressure sensor 420 abut against the bottom of the floating bearing seat 210 and the base 100, respectively, to avoid lateral force interference.

[0032] In detail, this utility model achieves a modular effect by sliding the single floating bearing seat 210 to the vertical guide groove 121 and connecting each component of the floating bearing seat 210. Each floating bearing seat 210 independently responds to material pressure, eliminating weighing deviations caused by uneven mass distribution of fertilizer materials (including but not limited to granular fertilizers). This allows for quick replacement and facilitates maintenance and replacement by operators. The number of floating bearing seats 210 can also be increased or decreased to meet different production scenarios and needs. At the same time, the spacing between the elastic element 410 and the sensor forms a dual-path load transfer. When a large mass of material experiences a sudden impact during transmission, the elastic element 410 can compress and absorb energy, preventing the pressure sensor 420 from being overloaded and damaged.

[0033] In one embodiment, the adjustment assembly 200 further includes a slider 220, which is symmetrically arranged on both sides of the floating bearing seat 210 and is slidably connected to the inner wall of the vertical guide groove 121.

[0034] In this embodiment, L-shaped steel plates are symmetrically arranged on the left and right sides of the floating bearing seat 210. The slider 220 is installed on the L-shaped steel plate by countersunk screws. One side of the slider 220 is slidably connected to the vertical guide groove 121 to provide the floating bearing seat 210 with sliding capability relative to the vertical guide groove 121.

[0035] Understandably, the surface of slider 220 can also have vertical grooves filled with grease to enhance the sliding effect.

[0036] In one embodiment, the base 100 is further provided with a guide post 140, which is disposed in the vertical guide groove 121 at intervals from the pressure sensor 420. The guide post 140 passes through the floating bearing seat 210 in the vertical direction, and the elastic element 410 is sleeved on the guide post 140.

[0037] In this embodiment, the guide post 140 is vertically welded to the bottom wall of the vertical guide groove 121. There are two guide posts 140 corresponding to one floating bearing seat 210. The two guide posts 140 are symmetrically arranged along the axis of the floating bearing seat 210. The floating bearing seat 210 is provided with a guide hole corresponding to the guide post 140. The guide post 140 passes through the floating bearing seat 210 through the guide hole. The elastic element 410 is sleeved on the periphery of the guide post 140. The guide post 140 restricts the horizontal deflection of the floating bearing seat 210, so that the pressure sensor 420 only bears the vertical pressure, ensuring measurement accuracy.

[0038] In one embodiment, the modular weighing mechanism 1000 further includes a limiting device 500, which includes a limiting block 510 and a limiting bolt 520. The two limiting blocks 510 are disposed at the vertical ends of the vertical guide groove 121, and the limiting blocks 510 are fixedly connected to the vertical plate 120 by the limiting bolt 520 passing through the vertical plate 120.

[0039] In this embodiment, the limiting components are located at both ends of the vertical guide groove 121 in the vertical direction. The limiting blocks 510 are bolted to the upright plate 120 by limiting bolts 520 to prevent the floating bearing seat 210 from dislodging or the pressure sensor 420 from being damaged by overload in the event of failure of the elastic element 410 or extreme working conditions. The upright plate 120 is provided with limiting holes corresponding to the limiting bolts 520. The size of the limiting area can be adjusted by the limiting bolts 520 to control the movement stroke of the floating bearing seat 210. Operators can also quickly disassemble and replace the limiting components according to actual production needs. It is understood that the end face of the limiting block 510 can also be provided with an elastic pad to dampen the floating bearing seat 210 when it moves to its maximum stroke.

[0040] In one embodiment, the weighing assembly 400 further includes an upper elastic element seat 430 and a lower elastic element seat 440. The lower elastic element seat 440 is fixedly disposed on the base 100 and abuts against the bottom end of the elastic element 410. The upper elastic element seat 430 is disposed on the bottom end of the floating bearing seat 210 and abuts against the top end of the elastic element 410. The upper elastic element seat 430 and the lower elastic element seat 440 enclose an elastic space, and the elastic element 410 is located within the elastic space.

[0041] In this embodiment, the elastic space formed by the upper elastic element seat 430 and the lower elastic element seat 440 is a cylindrical cavity. The guide post 140 passes through the upper elastic element seat 430 and the lower elastic element seat 440. The top end of the elastic element 410 abuts against the upper elastic element seat 430, and the bottom end of the elastic element 410 abuts against the lower elastic element seat 440. The upper elastic element seat 430 and the lower elastic element seat 440 are respectively provided with fixing grooves corresponding to the two ends of the elastic element 410. The inner diameter of the fixing groove matches the outer diameter of the elastic element 410 to further prevent the end of the elastic element 410 from shifting.

[0042] In another embodiment, the upper elastic element seat 430 and the lower elastic element seat 440 can be enclosed to form a cylindrical sealing cavity. The side wall of the cylindrical sealing cavity is provided with a vent hole to balance the air pressure. The cylindrical sealing cavity is used to block fertilizer dust or moisture from entering, improve the service life of the elastic element 410, and further avoid the performance change of the elastic element 410 due to deformation caused by changes in ambient temperature and humidity.

[0043] In one embodiment, the weighing assembly 400 further includes a first preload nut 450 and a second preload nut 460. The first preload nut 450 extends vertically through the floating bearing seat 210 and abuts against the top end of the upper elastic member seat 430. The second preload nut 460 extends vertically through the base 100 and abuts against the bottom end of the lower elastic member seat 440.

[0044] In this embodiment, the first preload nut 450 penetrates the top of the floating bearing seat 210 and abuts against the upper elastic element seat 430. The first preload nut 450 is spaced apart from the guide post 140. The operator can control the lifting and lowering movement of the upper elastic element seat 430 by rotating the first preload nut 450. The second preload nut 460 penetrates the bottom of the base 100 from bottom to top and abuts against the lower elastic element seat 440. The operator can control the lifting and lowering movement of the lower elastic element seat 440 by rotating the second preload nut 460. The preload force of the elastic element 410 can be controlled by independently adjusting the first preload nut 450 and the second preload nut 460.

[0045] In one embodiment, the modular weighing mechanism 1000 further includes a drive motor 600, which is disposed on the outside of the base 100 and is key-connected to the drive roller 310.

[0046] In this embodiment, the drive motor 600 is mounted on the outside of the vertical plate 120 via a flange, and the drive roller 310 is keyed to the output shaft of the drive motor 600. It is understood that there can be multiple drive rollers 310. The modular weighing mechanism 1000 can also be equipped with gearboxes and couplings corresponding to multiple drive rollers 310. The drive motor 600 is keyed to multiple drive rollers 310 simultaneously via the gearbox. The input end of the gearbox is connected to the output end of the drive motor 600, and the output end of the gearbox is keyed to multiple drive rollers 310 simultaneously, to ensure that the movement speed of the multiple drive rollers 310 is the same. The coupling is used to ensure that the drive rollers 310 are not affected by the vibration of the drive motor 600 during operation, thus extending the equipment life of the drive rollers 310.

[0047] This utility model features a base at the discharge end of a fertilizer packaging machine, on which independently operating floating bearing seats, driven rollers, and weighing components are mounted. This enables precise weighing of fertilizer materials with uneven mass distribution. Furthermore, through a modular design with multiple independently operating components, the weighing and measurement layout can be adjusted according to actual production needs, shortening maintenance and repair time, adapting to the production and processing of different materials, and increasing production efficiency.

[0048] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A modular weighing mechanism for a fertilizer packaging machine, characterized in that, include: The base includes a conveyor belt and upright plates. The upright plates are symmetrically arranged on both sides of the conveyor belt, and multiple vertical guide grooves are provided on the inner side of the upright plates on both sides in the vertical direction. An adjustment assembly, comprising multiple floating bearing seats, which are slidably connected to the vertical guide groove and symmetrically arranged on the inner walls of the upright plates on both sides. A roller assembly, comprising a drive roller and a driven roller, wherein the drive roller is rotatably connected to the vertical plate, and the driven rollers are arranged on both sides of the drive roller along the movement direction of the conveyor belt, the axis of the driven roller is parallel to that of the drive roller, and the driven rollers are rotatably connected to the floating bearing seat. A weighing assembly includes an elastic element and a pressure sensor. The elastic element is disposed on the base corresponding to the bottom end of the vertical guide groove. The top end of the elastic element is connected to the floating bearing seat. The pressure sensor is connected to the bottom end of the floating bearing seat and is spaced apart from the elastic element.

2. The modular weighing mechanism of the fertilizer packaging machine as described in claim 1, characterized in that, The adjustment assembly also includes sliders, which are symmetrically arranged on both sides of the floating bearing seat and are slidably connected to the inner wall of the vertical guide groove.

3. The modular weighing mechanism of the fertilizer packaging machine as described in claim 2, characterized in that, The base is also provided with a guide post, which is disposed in the vertical guide groove at a distance from the pressure sensor. The guide post passes through the floating bearing seat in the vertical direction, and the elastic element is sleeved on the guide post.

4. The modular weighing mechanism of the fertilizer packaging machine as described in claim 3, characterized in that, The modular weighing mechanism also includes a limiting device, which includes a limiting block and a limiting bolt. The two limiting blocks are disposed at the vertical ends of the vertical guide groove, and the limiting blocks are fixedly connected to the vertical plate by the limiting bolts that pass through the vertical plate.

5. The modular weighing mechanism of the fertilizer packaging machine as described in claim 1, characterized in that, The weighing assembly further includes an upper elastic element seat and a lower elastic element seat. The lower elastic element seat is fixedly disposed on the base and abuts against the bottom end of the elastic element. The upper elastic element seat is disposed at the bottom end of the floating bearing seat and abuts against the top end of the elastic element. The upper elastic element seat and the lower elastic element seat enclose an elastic space, and the elastic element is located within the elastic space.

6. The modular weighing mechanism of the fertilizer packaging machine as described in claim 5, characterized in that, The weighing assembly further includes a first preload nut and a second preload nut. The first preload nut extends vertically through the floating bearing seat and abuts against the top end of the upper elastic element seat. The second preload nut extends vertically through the base and abuts against the bottom end of the lower elastic element seat.

7. The modular weighing mechanism of the fertilizer packaging machine as described in claim 1, characterized in that, The modular weighing mechanism also includes a drive motor, which is located on the outside of the base and is connected to the drive roller key.

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