Water-soluble fertilizer packaging device

Abstract

The utility model relates to a water-soluble fertilizer packaging device, and belongs to the technical field of fertilizer packaging. The device comprises a supporting mechanism, a discharging mechanism, a clamping mechanism and a weighing mechanism, the supporting mechanism comprises a supporting frame and a supporting table, and the supporting frame is arranged on the supporting table; the discharging mechanism is connected with the supporting frame and comprises an output end. The clamping mechanism is connected with the supporting frame, and the clamping mechanism is matched with the output end of the discharging mechanism to clamp a material bag; the weighing mechanism comprises a lifting table, a weighing part and a plurality of limiting parts, the lifting table is arranged on the supporting table and located below the output end, the weighing part is arranged on the lifting table, and the limiting parts are distributed on the weighing part. The fertilizer packaging device has the effect of improving the fertilizer packaging efficiency and the weighing reliability.

Description

Technical Field

[0001] The present application relates to the technical field of fertilizer packaging, and in particular to a water-soluble fertilizer packaging device. Background Art

[0002] Water-soluble fertilizer is a multi-component compound fertilizer that can be completely soluble in water. It is easily absorbed by crops and has a relatively high absorption and utilization rate. Its application in agricultural operations such as sprinkler irrigation and drip irrigation can achieve water-fertilizer integration, thereby meeting the needs of saving water and fertilizer.

[0003] Fertilizers need to be packaged during the production process and filled into bags for transportation; and the filled bags need to be weighed to determine the fertilizer content in the bags.

[0004] However, in the related art, the fertilizer bag is prone to tilt when being weighed, so that the weight of the bag is dispersed outside the weighing structure, affecting the fertilizer packaging efficiency and the reliability of weighing.

[0005] With respect to the above-mentioned related technologies, the inventors believe that there are defects in that the fertilizer packaging efficiency is low and the weighing reliability is insufficient. Utility Model Content

[0006] In order to improve fertilizer packaging efficiency and weighing reliability, the present application provides a water-soluble fertilizer packaging device.

[0007] The water-soluble fertilizer packaging device provided in this application adopts the following technical solution:

[0008] A water-soluble fertilizer packaging device comprises: a supporting mechanism, comprising a supporting frame and a supporting platform, the supporting frame being arranged on the supporting platform; a feeding mechanism, connected to the supporting frame, the feeding mechanism comprising an output end; a clamping mechanism, connected to the supporting frame, the clamping mechanism cooperates with the output end of the feeding mechanism to clamp a material bag; a weighing mechanism, the weighing mechanism comprising a lifting platform, a weighing piece and a plurality of limiting pieces, the lifting platform being arranged on the supporting platform and located below the output end, the weighing piece being arranged on the lifting platform, and a plurality of limiting pieces being distributed on the weighing piece.

[0009] By adopting the above technical scheme, the supporting mechanism provides support for the unloading mechanism, the clamping mechanism and the weighing mechanism, so that the material bag can be placed under the unloading mechanism, and the material bag is clamped and cooperated with the output end through the cooperation of the clamping mechanism and the unloading mechanism, so that the fertilizer can enter the material bag through the unloading mechanism to achieve filling, and at the same time, it can be weighed by the weighing mechanism under the unloading mechanism to improve the packaging efficiency; the material bag is placed on the weighing piece to achieve weight measurement, and by adjusting the height of the lifting platform, the weighing piece can reliably carry the material bag, thereby improving the weighing accuracy, and a plurality of limit members are provided on the weighing piece to prevent the material bag from tilting. Due to the setting of the lifting platform and the limit members, the problem of the material bag affecting the weighing accuracy due to the tilting contact of the support platform can be effectively alleviated, thereby improving the reliability of weighing.

[0010] Optionally, the clamping mechanism includes a connecting member and a bag-supporting member, one end of the connecting member is connected to the support frame, the other end of the connecting member is connected to the bag-supporting member, and the inner side wall of the bag-supporting member cooperates with the outer side wall of the output end.

[0011] By adopting the above technical solution, the bag-opening member opens the bag opening of the material bag, so that the output end can extend into the bag opening, thereby improving the reliability of fertilizer filling.

[0012] Optionally, the clamping mechanism also includes a clip-on component and a first telescopic component, the fixed end of the first telescopic component is connected to the support frame, the movable end of the first telescopic component is connected to the clip-on component, the clip-on component cooperates with the bag-supporting component to clamp the material bag, and the first telescopic component and the connecting component are circumferentially staggered in the bag-supporting component.

[0013] By adopting the above technical solution, the first telescopic member drives the clamping member to expand and contract horizontally, so that the clamping member and the bag-supporting member can clamp and fix the material bag, so as to facilitate the filling of fertilizer.

[0014] Optionally, the clamping member includes a horizontal portion, which cooperates with the upper end surface of the bag-supporting member to make the bag opening of the material bag bend horizontally and protrude horizontally toward the inner side of the bag-supporting member. The connecting member and the first telescopic member are both slidably connected to the support frame, driving the bag opening to be clamped between the inner wall of the bag-supporting member and the outer wall of the output end.

[0015] By adopting the above technical solution, the horizontal part presses the end of the bag opening to extend horizontally. When the connecting member and the first telescopic member slide upward, the output end will contact the horizontally extended bag opening, and the bag opening will be clamped between the outer wall of the output end and the inner wall of the bag supporting member, thereby further clamping and fixing the bag and reducing the risk of the bag falling during the filling process.

[0016] Optionally, the weighing mechanism further comprises a supporting member, the limiting member is rotatably connected to the weighing member, one end of the supporting member is connected to the weighing member, and the other end of the supporting member is detachably connected to the limiting member.

[0017] By adopting the above technical solution, the detachable connection between the support member and the limit member can enable the limit member to be set vertically to limit the material bag, thereby reducing the risk of the material bag tilting or even tipping over; when the material bag needs to be removed, the connection between the support member and the limit member is released so that the limit member can be rotated to weaken the limiting effect on the material bag, thereby facilitating the removal of the material bag from the weighing member.

[0018] Optionally, it further includes a conveying mechanism, the support platform is provided with an avoidance portion, the conveying mechanism is arranged at the avoidance portion, the conveying mechanism includes a conveying bracket and a plurality of rollers, the conveying bracket is provided with an inclined portion, and the rollers are rotatably connected to the inclined portion.

[0019] By adopting the above technical solution, the filled material bags can be easily moved outside the weighing unit for processing in the next step, thereby reducing labor intensity.

[0020] Optionally, the cross-sectional area of ​​the lifting platform is equal to the cross-sectional area of ​​the weighing element.

[0021] By adopting the above technical solution, the lifting platform can adjust the height of the weighing piece and provide reliable bearing for the weighing piece, while avoiding the problem of the bag tilting and dispersing the weight on the lifting platform, thereby improving the accuracy of weighing.

[0022] Optionally, the unloading mechanism includes a cutting off component, which includes a second telescopic member and a cutting off plate, the fixed end of the second telescopic member is connected to the support frame, the movable end of the second telescopic member is connected to the cutting off plate, the cutting off plate is passed through the output end, and the cross-sectional area of ​​the cutting off plate is greater than or equal to the flow cross-sectional area of ​​the output end.

[0023] By adopting the above technical solution, the output end of the material discharging mechanism can be cut off conveniently and reliably, thereby stopping the material discharging.

[0024] Optionally, the cutting assembly further includes a supporting member, which is disposed on a side of the unloading mechanism away from the second telescopic member, one end of the supporting member is connected to the support frame, and the other end of the supporting member is used to support one end of the cutting plate away from the second telescopic member.

[0025] By adopting the above technical solution, the supporting member is used to provide support for the end of the cutting plate away from the second telescopic member, thereby preventing the cutting plate from exerting a large pressure on the blanking mechanism and affecting the reliability of the blanking mechanism.

[0026] Optionally, the unloading mechanism comprises a cover body, and the cover body is rotatably connected to the input end of the unloading mechanism.

[0027] By adopting the above technical solution, impurities entering into the feeding mechanism through the cover body can be reduced, thereby improving the quality of fertilizer.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The supporting mechanism provides support for the feeding mechanism, the clamping mechanism and the weighing mechanism, so that the material bag can be placed under the feeding mechanism. The material bag is clamped and cooperated with the output end through the cooperation of the clamping mechanism and the feeding mechanism, so that the fertilizer can enter the material bag through the feeding mechanism to achieve filling. At the same time, it can be weighed by the weighing mechanism under the feeding mechanism to improve the packaging efficiency; the material bag is placed on the weighing piece to achieve weight measurement. By adjusting the height of the lifting platform, the weighing piece can reliably carry the material bag, and the weighing accuracy is improved. In addition, a plurality of limiters are provided on the weighing piece to prevent the material bag from tilting. Due to the setting of the lifting platform and the limiters, the problem of the material bag affecting the weighing accuracy due to the tilting contact with the support platform can be effectively alleviated, thereby improving the reliability of weighing;

[0030] 2. The horizontal part presses the end of the bag opening to extend horizontally. When the connecting member and the first telescopic member slide upward, the output end contacts the horizontally extending bag opening and clamps the bag opening between the outer wall of the output end and the inner wall of the bag supporting member, thereby further clamping and fixing the bag and reducing the risk of the bag falling during the filling process.

[0031] 3. The detachable connection between the support member and the limit member enables the limit member to be set vertically to limit the material bag, thereby reducing the risk of the material bag tilting or even tipping over; when the material bag needs to be removed, the connection between the support member and the limit member is released so that the limit member can be rotated to weaken the limiting effect on the material bag, thereby facilitating the removal of the material bag from the weighing member. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is an overall schematic diagram of the water-soluble fertilizer packaging device of an embodiment of the present application.

[0033] Figure 2 It is a schematic diagram of the coordination between the unloading mechanism and the clamping mechanism of the embodiment of the present application.

[0034] Figure 3 It is a schematic diagram of the coordination between the weighing mechanism and the conveying mechanism of an embodiment of the present application.

[0035] Description of reference numerals:

[0036] 1. Support mechanism; 11. Support frame; 12. Support platform; 13. Avoidance part;

[0037] 2. Feeding mechanism; 21. Output end; 22. Cutting component; 221. Second telescopic member; 222. Cutting plate; 223. Supporting member; 23. Feeding body; 24. Cover body; 241. Rotating shaft; 25. Input end;

[0038] 3. Clamping mechanism; 31. Connecting member; 32. Bag-supporting member; 33. Snap-fit ​​member; 34. First telescopic member;

[0039] 4. Weighing mechanism; 41. Lifting platform; 411. Driving member; 42. Weighing member; 43. Limiting member; 44. Support member;

[0040] 5. Conveying mechanism; 51. Conveying bracket; 52. Roller. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1 -Attached Figure 3 The present application is further described in detail. In this embodiment, if not clearly specified, "connected", "connected" and "fixed" are understood in a broad sense, including fixed connection, detachable connection, connection to form an integral structure, mechanical connection, electrical connection, direct connection, indirect connection through an intermediary, internal connection and interaction between two elements, etc., which can be understood according to the specific circumstances. In the absence of any contrary explanation, the directional words used in this application, such as "inside" and "outside", refer to the outline of the corresponding parts themselves.

[0042] like Figure 1 As shown, an embodiment of the present application discloses a water-soluble fertilizer packaging device (hereinafter referred to as "device"), which includes a supporting mechanism 1, a feeding mechanism 2, a clamping mechanism 3 and a weighing mechanism 4, which is used to package and weigh the water-soluble fertilizer.

[0043] The support mechanism 1 includes a support platform 12 and a plurality of support frames 11, and the plurality of support frames 11 are distributed on the support platform 12. The support frame 11 can be a plate-like structure to provide reliable support and to block dust during the fertilizer packaging process. The unloading mechanism 2 and the clamping mechanism 3 are both connected to the support frame 11, and the weighing mechanism 4 is arranged on the support platform 12, and the weighing mechanism 4 is arranged below the unloading mechanism 2 and the clamping mechanism 3. The support mechanism 1 provides support for the unloading mechanism 2, the clamping mechanism 3 and the weighing mechanism 4, so that there is enough space between the unloading mechanism 2 and the weighing mechanism 4 below to place the material bag. Through the weighing mechanism 4 below the unloading mechanism 2, it is possible to weigh without moving the material bag after unloading, thereby improving the packaging efficiency of the fertilizer.

[0044] like Figure 1 and Figure 2As shown, the feeding mechanism 2 includes an input end 25, a feeding body 23 and an output end 21, and the upper and lower parts of the feeding body 23 are connected to the input end 25 and the output end 21 respectively. The input end 25 can be a funnel-shaped structure, and the output end 21 includes a rectangular cross-section part and a circular cross-section part, and the upper and lower ends of the rectangular cross-section part are transitionally connected to the feeding body 23 and the circular cross-section part. The clamping mechanism 3 cooperates with the circular cross-section part of the output end 21 to clamp the material bag, so that the bag mouth of the material bag is aligned with the output end 21 and fixed, so that the fertilizer can enter the material bag through the feeding mechanism 2 to achieve the filling of the fertilizer.

[0045] The feeding mechanism 2 further includes a cover 24 and a rotating shaft 241. The setting of the cover 24 can reduce the impurities entering the feeding body 23 and improve the quality of the fertilizer. The axis of the rotating shaft 241 is set vertically, and the cover 24 is connected to the input end 25 by rotating the rotating shaft 241, so that the cover 24 can open or close the input end 25 by rotating horizontally around the rotating shaft 241, thereby reducing the labor intensity of moving the cover 24.

[0046] like Figure 1-Figure 3 As shown, the weighing mechanism 4 includes a lifting platform 41, a weighing piece 42 and a plurality of limit pieces 43. The lifting platform 41 is arranged on the support platform 12 and is located below the output end 21. The weighing piece 42 is arranged on the lifting platform 41, and the material bag is placed on the weighing piece 42 to achieve weight measurement. By adjusting the height of the lifting platform 41, the weighing piece 42 can reliably carry the material bag, improve the weighing accuracy, and improve the applicability to material bags of different heights. The weighing piece 42 can be a platform scale or other structure that can achieve weighing.

[0047] The lifting platform 41 includes a housing and a plurality of driving members 411, the telescopic end of the driving member 411 is connected to the inner side of the top surface of the housing, and the fixed end of the driving member 411 is connected to the support platform 12. The driving member 411 can be a cylinder, a hydraulic cylinder or a telescopic rod structure, and the plurality of driving members 411 are evenly distributed in the housing. A plurality of limiting members 43 are distributed on the weighing member 42, and the limiting members 43 can be a plate-shaped structure or a rod-shaped structure, which is used to prevent the material bag from tilting so that the weight of the material bag can be concentrated on the weighing member 42. Due to the arrangement of the lifting platform 41 and the limiting members 43, the problem of the material bag affecting the weighing accuracy due to the tilting contact with the support platform 12 can be effectively alleviated, thereby improving the reliability of weighing. The cross-sectional area of ​​the lifting platform 41 is equal to the cross-sectional area of ​​the weighing member 42, so that the height of the weighing member 42 can be adjusted by the lifting platform 41, and the weighing member 42 can be kept away from the support platform 12, while avoiding the problem of the material bag tilting to the support platform 12 or the lifting platform 41 to disperse the weight, thereby improving the accuracy of weighing.

[0048] like Figure 1-Figure 3As shown, the weighing mechanism 4 also includes a support member 44, and a limit member 43 is rotatably connected to the weighing member 42, so that the limit member 43 can realize rotation around one end of itself. One end of the support member 44 is connected to the weighing member 42, and the other end of the support member 44 is detachably connected to the limit member 43. The support member 44 can be ball-hinged to the weighing member 42; or the support member 44 can be rotatably connected to the weighing member 42 through an axis, and the support member 44 is made of a material with a certain elasticity so that the hook at the other end of the support member 44 can be hooked on the hanging ring of the limit member 43. The detachable connection between the support member 44 and the limit member 43 enables the limit member 43 to be set vertically to limit the material bag and reduce the risk of the material bag tilting or even tipping over; when the material bag needs to be removed, the connection between the support member 44 and the limit member 43 can be released so that the limit member 43 can be rotated to a horizontal or downward tilt to weaken the limiting effect on the material bag, making it easier to move the material bag out of the weighing member 42.

[0049] The device also includes a conveying mechanism 5, a support platform 12 is provided with an avoidance portion 13, the avoidance portion 13 is a through groove structure, and the conveying mechanism 5 is arranged at the avoidance portion 13 so that the conveying mechanism 5 can be close to the weighing mechanism 4. The conveying mechanism 5 includes a conveying bracket 51 and a plurality of rollers 52, the conveying bracket 51 is provided with an inclined portion, and the rollers 52 are rotatably connected to the inclined portion. When it is necessary to remove the material bag, the limiter 43 is rotated to a horizontal position or overlapped on the inclined portion, so as to facilitate the movement of the filled material bag to the outside of the weighing member 42 for the next process, thereby reducing the labor intensity when removing the material bag. A limiter 43 can be arranged in cooperation with the conveying mechanism 5 to achieve overlap, or the conveying mechanism and the limiter 43 can be arranged in a staggered manner to alleviate the resistance generated by the connection end of the limiter 43. The weighing member 42 can be provided with a positioning groove, and the limiter 43 is connected to the positioning groove, so that the limiter 43 will not protrude from the upper surface of the weighing member 42 after rotation, thereby reducing the resistance when moving the material bag.

[0050] like Figure 1 and Figure 2 As shown, the clamping mechanism 3 includes a connecting member 31 and a bag-supporting member 32. One end of the connecting member 31 is connected to the support frame 11, and the other end of the connecting member 31 is connected to the bag-supporting member 32. The inner side wall of the bag-supporting member 32 cooperates with the outer side wall of the output end 21. The connecting member 31 can be a rod-shaped or plate-shaped structure, and the bag-supporting member 32 is a circular ring structure. The bag opening of the material bag is opened by the bag-supporting member 32, so that the output end 21 can extend into the bag opening, thereby improving the reliability of fertilizer filling.

[0051] like Figure 1 and Figure 2As shown, the clamping mechanism 3 also includes a clamping member 33 and a first telescopic member 34. The fixed end of the first telescopic member 34 is connected to the support frame 11, and the movable end of the first telescopic member 34 is connected to the clamping member 33, so that the clamping member 33 can be driven to move horizontally by the first telescopic member 34, so that the clamping member 33 can cooperate with the bag-supporting member 32 to clamp the material bag. The first telescopic member 34 can be a cylinder, a hydraulic cylinder or a telescopic rod structure; the clamping member 33 can fit with the outer side of the bag-supporting member 32 to achieve the clamping of the material bag. The first telescopic member 34 and the connecting member 31 are staggered in the circumferential direction of the bag-supporting member 32 to avoid interference.

[0052] like Figure 2 As shown, the clamping member 33 is an L-shaped structure, and the clamping member 33 includes a horizontal portion, which is matched with the upper end surface of the bag-supporting member 32. When the bag is clamped, the bag opening is extended from the bag-supporting member 32, so that when the clamping member 33 and the bag-supporting member 32 are clamped, the bag opening of the bag can be horizontally bent and protruded horizontally toward the inner side of the bag-supporting member 32. Since the connecting member 31 and the first telescopic member 34 are both slidably connected to the support frame 11, the bag opening can be driven to move upward in the direction close to the output end 21, and the horizontally extended bag opening is bent downward through the output end 21, so that the bag opening is clamped between the inner side wall of the bag-supporting member 32 and the outer side wall of the output end 21, further realizing the clamping and fixing of the bag, and reducing the risk of the bag falling during the filling process.

[0053] like Figure 1 and Figure 2 As shown, the material discharging mechanism 2 includes a truncation component 22, and the truncation component 22 cooperates with the rectangular cross-section portion. The truncation component 22 includes a second telescopic member 221 and a truncation plate 222. The fixed end of the second telescopic member 221 is connected to the support frame 11, and the movable end of the second telescopic member 221 is connected to the truncation plate 222. The truncation plate 222 is inserted into the output end 21 through the telescopic movement of the second telescopic member 221, and the cross-sectional area of ​​the truncation plate 222 is greater than or equal to the flow cross-sectional area of ​​the output end 21, so that the truncation plate 222 can achieve the interception effect on the fertilizer in the output end 21. The second telescopic member 221 can be a telescopic rod, a cylinder or a hydraulic cylinder, so as to conveniently and reliably realize the truncation of the output end 21 by horizontal telescopic means, thereby stopping the material discharging.

[0054] The cutting assembly 22 further includes a supporting member 223, which is disposed on a side of the material discharging mechanism 2 away from the second telescopic member 221, one end of the supporting member 223 is connected to the support frame 11, and the other end of the supporting member 223 is used to support the end of the cutting plate 222 away from the second telescopic member 221. The supporting member 223 is used to provide support for the end of the cutting plate 222 away from the second telescopic member 221, so that the gravity of the cutting plate 222 does not act or acts less on the output end 21, thereby preventing the cutting plate 222 from exerting a large pressure on the material discharging mechanism 2 and affecting the reliability of the material discharging mechanism 2.

[0055] The implementation principle of the water-soluble fertilizer packaging device of the present application embodiment is as follows: the height of the lifting platform 41 is adjusted to make the height of the weighing piece 42 suitable for the height of the material bag, the limiting piece 43 is set vertically, the bottom of the material bag is placed on the weighing piece 42, the bag mouth of the material bag is sleeved on the outer periphery of the bag support piece 32, and the clamping piece 33 cooperates with the bag support piece 32 to achieve horizontal relative clamping of the material bag, and the clamping mechanism 3 drives the material bag to move up so that the material bag is sleeved on the outer periphery of the output end 21; at the same time, due to the horizontal part of the clamping piece 33, the material bag is sleeved on the outer periphery of the output end 21. The end of the bag opening extends horizontally, so that when the material bag moves upward, the bag opening can be clamped between the outer wall of the output end 21 and the inner wall of the bag supporting member 32, further clamping the material bag and improving the reliability of the material bag fixation; then, the fertilizer in the unloading mechanism 2 is filled into the material bag and weighed in real time by the weighing member 42; a preset weight value is set, and when the weight reaches the preset weight value, the second telescopic member 221 drives the cutting plate 222 to extend to cut off the fall of the fertilizer, so that the material bag can be replaced and filled again.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water-soluble fertilizer packaging device, characterized in that: include: A support mechanism (1) comprises a support frame (11) and a support platform (12), wherein the support frame (11) is arranged on the support platform (12); A material discharge mechanism (2) connected to the support frame (11), the material discharge mechanism (2) comprising an output end (21); A clamping mechanism (3) connected to the support frame (11), the clamping mechanism (3) cooperates with the output end (21) of the unloading mechanism (2) to clamp the material bag; A weighing mechanism (4), the weighing mechanism (4) comprising a lifting platform (41), a weighing piece (42) and a plurality of position limiting pieces (43), the lifting platform (41) being arranged on the support platform (12) and located below the output end (21), the weighing piece (42) being arranged on the lifting platform (41), and the plurality of position limiting pieces (43) being distributed on the weighing piece (42).

2. The water-soluble fertilizer packaging device according to claim 1, characterized in that: The clamping mechanism (3) comprises a connecting piece (31) and a bag-supporting piece (32), one end of the connecting piece (31) is connected to the support frame (11), the other end of the connecting piece (31) is connected to the bag-supporting piece (32), and the inner side wall of the bag-supporting piece (32) cooperates with the outer side wall of the output end (21).

3. The water-soluble fertilizer packaging device according to claim 2, characterized in that: The clamping mechanism (3) further comprises a clamping member (33) and a first telescopic member (34); a fixed end of the first telescopic member (34) is connected to the support frame (11); a movable end of the first telescopic member (34) is connected to the clamping member (33); the clamping member (33) cooperates with the bag-supporting member (32) to clamp the material bag; the first telescopic member (34) and the connecting member (31) are staggered in the circumferential direction of the bag-supporting member (32).

4. The water-soluble fertilizer packaging device according to claim 3, characterized in that: The clamping member (33) comprises a horizontal portion, the horizontal portion cooperates with the upper end surface of the bag-supporting member (32), so that the bag opening of the material bag is horizontally bent, and the bag opening protrudes horizontally toward the inner side of the bag-supporting member (32); the connecting member (31) and the first telescopic member (34) are both slidably connected to the support frame (11), driving the bag opening to be clamped between the inner side wall of the bag-supporting member (32) and the outer side wall of the output end (21).

5. The water-soluble fertilizer packaging device according to claim 1, characterized in that: The weighing mechanism (4) further comprises a support member (44), the limiting member (43) being rotatably connected to the weighing member (42), one end of the support member (44) being connected to the weighing member (42), and the other end of the support member (44) being detachably connected to the limiting member (43).

6. The water-soluble fertilizer packaging device according to claim 1, characterized in that: It also comprises a conveying mechanism (5), the support platform (12) is provided with an avoidance portion (13), the conveying mechanism (5) is arranged on the avoidance portion (13), the conveying mechanism (5) comprises a conveying support (51) and a plurality of rollers (52), the conveying support (51) is provided with an inclined portion, and the rollers (52) are rotatably connected to the inclined portion.

7. The water-soluble fertilizer packaging device according to claim 1, characterized in that: The cross-sectional area of ​​the lifting platform (41) is equal to the cross-sectional area of ​​the weighing element (42).

8. The water-soluble fertilizer packaging device according to claim 1, characterized in that: The material discharge mechanism (2) comprises a cut-off assembly (22), the cut-off assembly (22) comprising a second telescopic member (221) and a cut-off plate (222), the fixed end of the second telescopic member (221) being connected to the support frame (11), the movable end of the second telescopic member (221) being connected to the cut-off plate (222), the cut-off plate (222) being arranged through the output end (21), and the cross-sectional area of ​​the cut-off plate (222) being greater than or equal to the flow cross-sectional area of ​​the output end (21).

9. The water-soluble fertilizer packaging device according to claim 8, characterized in that: The cutting assembly (22) further comprises a supporting member (223), wherein the supporting member (223) is arranged on a side of the material discharging mechanism (2) away from the second telescopic member (221), one end of the supporting member (223) is connected to the support frame (11), and the other end of the supporting member (223) is used to support an end of the cutting plate (222) away from the second telescopic member (221).

10. The water-soluble fertilizer packaging device according to claim 1, characterized in that: The material discharge mechanism (2) comprises a cover body (24), and the cover body (24) is rotatably connected to an input end (25) of the material discharge mechanism (2).

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