Compound fertilizer raw material weighing device

Abstract

The application discloses a compound fertilizer raw material weighing device and relates to the fertilizer weighing technical field.The device comprises a supporting frame, a transmission plate, a clamping mechanism and a hanging mechanism, and the transmission plate, the clamping mechanism and the hanging mechanism are arranged in the supporting frame.The supporting frame comprises a top plate which is arranged in parallel with the transmission plate, the top plate is provided with a first communication hole which is connected with an external connecting pipe in communication, the bottom end surface of the top plate is fixedly provided with a lifting mechanism, and the extending end of the lifting mechanism is fixedly connected with the transmission plate.The device integrates key components in a unified frame, disperses radial force, avoids shelf deformation, guarantees the precision and stability of the cylinder and eliminates the risk of equipment damage.Meanwhile, the device is suitable for various ton bags, clamps and fixes small connecting ports, saves the cost of additional connecting parts, prevents raw material leakage, and provides a stable, efficient, safe and low-cost special platform for compound fertilizer weighing operation.

Description

Technical Field

[0001] This invention relates to the field of fertilizer weighing technology, specifically to a compound fertilizer raw material weighing device. Background Technology

[0002] In the large-scale production process of compound fertilizer, raw material weighing is a key step connecting raw material storage and mixing and granulation. As the types of compound fertilizer raw materials become increasingly diverse (such as nitrogen, phosphorus and potassium single-element fertilizers, micronutrient fertilizers, etc.), ton bags, as the core carrier for raw material packaging and transportation, also exhibit diversified structural features. This places higher demands on the compatibility and reliability of weighing devices that are compatible with ton bags.

[0003] Currently, the weighing operation for raw materials of compound fertilizer packaged in ton bags, such as Figure 1 As shown, the system includes a support 1, a first weighing scale 2, a first feeding pipe 3, a first cylinder 4, a connecting belt 5, and a first hook 6. The first hook 6 can lift the ton bag. There are four first cylinders 4, which extend through piston rods and pull outward from the inside of the top opening of the ton bag to open the top opening of the ton bag for feeding. The first weighing scale 2, as a weight detection component, is placed horizontally on the ground directly below the first feeding pipe 3. Its bearing area must cover the support area of ​​the bottom of the ton bag to ensure that the ton bag can be placed completely and stably on the bearing surface of the weighing scale after it is opened, so as to detect the weight of the raw materials in real time.

[0004] However, this weighing device, which is a simple combination of a cylinder and a floor scale, has revealed the following defects in long-term practical application due to its lack of integrated design, rudimentary cylinder installation method, and poor functional adaptability:

[0005] 1. Low cylinder structural stability and service life:

[0006] The cylinder is installed on the frame using a simple bolt-fixed method. Since the cylinder is directly connected to the hook, it needs to be tilted to match the opening and movement trajectory of the ton bag. The fixed end of the cylinder is bolted to the connection between the top end face and the side wall of the frame. During frequent cylinder extension and retraction, the installation position of the fixed end changes continuously, making the bolts prone to loosening and causing the cylinder's installation position to shift. This not only affects the opening effect of the ton bag but may also cause uneven stress between the cylinder piston rod and the ton bag, accelerating piston rod wear. Furthermore, the radial load generated when the cylinder opens the ton bag is directly borne by the connection between the bolt and the frame. This connection is welded, and long-term use can easily lead to deformation and cracking of the frame mounting holes, or even cylinder detachment, posing a risk of equipment damage and safety accidents.

[0007] 2. The poor adaptability of the ton bag structure increases operating costs and risks due to additional operations:

[0008] The cylinder of the existing device can only realize the opening function of the ton bag with the top opening, and for the ton bag with a small connecting port fixed by a hoop at the top which is widely used in the industry, it needs to rely on additional operation to make up for the defects: on the one hand, the operator needs to prepare different specifications of the hoop connecting piece in advance according to the size of the ton bag small connecting port and the discharge port, which increases the procurement and management cost of spare parts; on the other hand, when the connecting piece is manually connected, if the connection is not tight or fixed, the raw materials are easy to leak from the connecting part during the discharging process, which not only causes waste of raw materials, but also pollutes the workshop environment.

[0009] In summary, there is an urgent need for a compound fertilizer raw material weighing device that is suitable for multiple ton bag types and has high stability. SUMMARY

[0010] The purpose of the present application is to provide a compound fertilizer raw material weighing device to solve the problems raised in the background art.

[0011] To achieve the above purpose, the present application provides the following technical scheme: a compound fertilizer raw material weighing device, comprising a support frame, a transmission plate, a clamping mechanism and a hanging mechanism, and the transmission plate, the clamping mechanism and the hanging mechanism are all arranged in the support frame;

[0012] The support frame comprises a top plate arranged in parallel with the transmission plate, a first communication hole is formed in the top plate and communicates with an external connecting pipe, a lifting mechanism is fixedly installed at the bottom end face of the top plate, the extension end of the lifting mechanism is fixedly connected with the transmission plate, and the lifting mechanism can be lifted in the vertical direction to drive the transmission plate to rise and fall relative to the top plate;

[0013] A second communication hole is formed in the transmission plate, and the second communication hole is coaxially arranged with the first communication hole, the first communication hole and the second communication hole are connected by a connecting pipeline, and a second discharge pipe is connected below the second communication hole;

[0014] The inner sides of the top plate and the transmission plate form an adjusting space, and the clamping mechanism and the hanging mechanism are both located in the adjusting space;

[0015] The clamping mechanism comprises four clamping bodies, each of which comprises four side plates arranged at the top end side of the transmission plate, two groups of guide rods arranged on the inner side of the side plates, movable connecting seats sleeved on the outer wall of the guide rods, rollers mounted on the bottom end of the connecting seats and matched with the transmission plate, bases arranged on the inner side of the connecting seats, first sliding grooves symmetrically arranged on the front and back sides of the inner wall of the base, the first sliding grooves being arranged in an inclined manner, second sliding grooves arranged on the left and right sides of the inner wall of the first sliding grooves, and a cushion plate movably arranged in the inner cavity of the second sliding groove, wherein one end of the spring mounted on the bottom end surface of the cushion plate is arranged on the other end of the spring arranged on the inner wall of the first sliding groove.

[0016] The top plate is provided with a top rod at each of the four corners of the bottom end surface, and the bottom end of each top rod extends into the inner cavity of the corresponding base.

[0017] The base is provided with an L-shaped fixing frame on the bottom end surface, the fixing frame penetrates the transmission plate at the bottom end, and the opposite side of the fixing frame is provided with a clamping plate, the clamping plate is arranged on the outer side of the second blanking pipe, and the outer wall of the clamping plate is provided with a rubber pad.

[0018] The hanging mechanism comprises a rotating rod, the rotating rod is rotatably connected to the inner wall of the transmission plate, the top end of the rotating rod is provided with a first supporting plate, the bottom end of the rotating rod is provided with a second supporting plate, the bottom end of the second supporting plate is provided with a second hook, one end of a pull rod is arranged on one side of the base, the other end of the pull rod extends into the inner cavity of the first supporting plate and is provided with a pull wheel.

[0019] Preferably, the support frame further comprises a bottom plate and four connecting vertical beams arranged between the top plate and the bottom plate, the bottom plate is provided with a recess, and the recess is provided with a second weighing scale.

[0020] Preferably, the connecting pipe is a metal corrugated pipe.

[0021] Preferably, the lifting mechanism comprises four second air cylinders, and the second air cylinders are arranged at the four corners of the bottom end surface of the top plate.

[0022] Preferably, the four clamping bodies are arranged on the transmission plate at intervals.

[0023] The composite fertilizer raw material weighing device has the beneficial effects that:

[0024] 1. In the present application, the second cylinder adopts a vertical and horizontal design, replacing the traditional "simple bolt direct fixing" inclined installation method, avoiding the direct connection of the cylinder end with the hook, and stabilizing the vertical lifting of the transmission plate through the cylinder control. This structure can provide a stable support foundation for the cylinder, avoid the installation position deviation caused by frequent expansion, eliminate the hidden danger of loose bolts, ensure the position accuracy of the cylinder during operation, reduce the uneven stress problem of the piston rod and ton bag, significantly reduce the piston rod wear rate, and improve the equipment operation safety and cylinder service life.

[0025] 2. For the ton bag structure adaptability problem, the matching system not only can realize reliable lifting and fixing of the top open ton bag, but also innovatively solves the adaptation problem of the widely used ton bag with small connecting port at the top. Through the synergistic effect of the clamping mechanism and the hanging mechanism, the small connecting port on the ton bag can be directly clamped and fixed during the weighing process, without relying on additional connecting parts. This not only saves the procurement and management cost of different specifications of spare parts, reduces the operation cost, but also avoids the connection problem of the connecting parts, effectively prevents the leakage of raw materials, reduces the waste of raw materials and environmental pollution, improves the economy and environmental protection of the operation.

[0026] The present application integrates key components with a unified frame, disperses radial force, avoids frame deformation, ensures cylinder accuracy and stability, and eliminates equipment damage risk. At the same time, it adapts to various ton bags, clamps and fixes small connecting ports, saves the cost of additional connecting parts, prevents raw material leakage, and provides a stable, efficient, safe and low-cost platform for compound fertilizer weighing operation. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The drawings are the background art of the present application;

[0028] Figure 2 The drawings are the structural schematic diagram of the present application;

[0029] Figure 3 The drawings are the top structure schematic diagram of the transmission plate of the present application;

[0030] Figure 4 The drawings are the Figure 3 The drawings are the enlarged structure schematic diagram of position A in the present application;

[0031] Figure 5 The drawings are the enlarged structure schematic diagram of position B in the present application; Figure 3

[0032] Figure 6 The drawings are the second downpipe structure schematic diagram of the present application;​

[0033] Figure 7 The base structure diagram of the present application. Figure 6 Amplification structure diagram at C in the present application.

[0034] Figure 8 The base structure diagram of the present application.

[0035] In the figure: 1, support, 2, first ground scale, 3, first feeding pipe, 4, first cylinder, 5, connecting rope, 6, first hook, 7, transmission plate, 8, top plate, 9, first communication hole, 10, second communication hole, 11, connecting pipeline, 12, second feeding pipe, 13, bottom plate, 14, connecting vertical beam, 15, second ground scale, 16, second cylinder, 17, side plate, 18, guide rod, 19, connecting seat, 20, roller, 21, base, 22, first sliding groove, 23, second sliding groove, 24, backing plate, 25, spring, 26, jacking rod, 27, top wheel, 28, fixing frame, 29, clamping plate, 30, rubber pad, 31, rotating rod, 32, first supporting plate, 33, second supporting plate, 34, second hook, 35, pull rod, 36, pull wheel. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] Please refer to Figures 2-8 The present application provides a technical solution: a compound fertilizer raw material weighing device, which comprises a support frame, a transmission plate 7, a clamping mechanism and a hanging mechanism, and the transmission plate 7, the clamping mechanism and the hanging mechanism are all arranged in the support frame.

[0038] The support frame comprises a top plate 8 arranged in parallel with the transmission plate 7, the top plate 8 is provided with a first communication hole 9 connected in communication with an external connecting pipe, and the bottom end surface of the top plate 8 is fixedly installed with a lifting mechanism, the extending end of the lifting mechanism is fixedly connected with the transmission plate 7, and the lifting mechanism can be lifted in the vertical direction to drive the transmission plate 7 to be lifted up and down relative to the top plate 8;

[0039] The transmission plate 7 is provided with a second communication hole 10, and the second communication hole 10 is coaxially arranged with the first communication hole 9, the first communication hole 9 and the second communication hole 10 are connected in communication through a connecting pipeline 11, and the second communication hole 10 is connected in communication with a second feeding pipe 12 below;

[0040] The inside of the top plate 8 and the transmission plate 7 forms an adjusting space, and the clamping mechanism and the hanging mechanism are both located in the adjusting space.

[0041] The clamping mechanism comprises four clamping bodies, each of which comprises four side plates 17 arranged at the top end side of the transmission plate 7, the inner side of the side plate 17 is provided with two groups of guide rods 18, the outer wall of the guide rod 18 is sleeved with a movable connecting seat 19, the bottom end of the connecting seat 19 is provided with a roller 20 which is in close contact with the transmission plate 7, the inner side of the connecting seat 19 is provided with a base 21, the inner wall of the base 21 is symmetrically provided with a first sliding groove 22 on the front and back sides, the first sliding groove 22 is arranged in an inclined manner, the inner wall of the first sliding groove 22 is provided with a second sliding groove 23 on the left and right sides, the inner cavity of the second sliding groove 23 is embedded with a movable spacer plate 24, one end of the spacer plate 24 is installed on the bottom end surface of the spring 25, and the other end of the spring 25 is installed on the inner wall of the first sliding groove 22;

[0042] The top plate 8 is provided with a top rod 26 at the bottom end surface of the four corners, and the bottom end of each top rod 26 extends into the inner cavity of the corresponding base 21, the front and back sides of the top rod 26 are provided with a top wheel 27 which extends into the inner cavity of the first sliding groove 22;

[0043] The bottom end surface of the base 21 is provided with an "L" shaped fixing frame 28, the bottom end of the fixing frame 28 penetrates the transmission plate 7, and the opposite side is provided with a clamping plate 29, the clamping plate 29 is located on the outer side of the second blanking pipe 12, and the outer wall of the clamping plate 29 is provided with a rubber pad 30;

[0044] The hanging mechanism comprises a rotating rod 31 which is rotatably connected to the inner wall of the transmission plate 7, the top end of the rotating rod 31 is provided with a first supporting plate 32, the bottom end of the rotating rod 31 is provided with a second supporting plate 33, the bottom end of the second supporting plate 33 is provided with a second hook 34, one end of the pull rod 35 is arranged on one side of the base 21, the other end of the pull rod 35 extends into the inner cavity of the first supporting plate 32 and is provided with a pull wheel 36.

[0045] As a preferred scheme, further, the support frame further comprises a bottom plate 13 and four connecting vertical beams 14 arranged between the top plate 8 and the bottom plate 13, the bottom plate 13 is provided with a recess, and the recess is provided with a second weighing scale 15.

[0046] As a preferred scheme, further, the connecting pipe 11 is a metal corrugated pipe.

[0047] As a preferred scheme, further, the lifting mechanism comprises four second air cylinders 16, and the second air cylinders 16 are arranged at the four corners of the bottom end surface of the top plate 8.

[0048] As a preferred scheme, further, the four clamping bodies are arranged on the transmission plate 7 at intervals.

[0049] Its detailed connection means, the prior art is well known, the following mainly introduces the working principle and process, the specific work is as follows.

[0050] When using, the ton bag is taken to the second platform scale 15, the lifting belt of the ton bag is hung on the second lifting hook 34, and the special small connecting port at the top of the ton bag is sleeved on the second discharging pipe 12, after the above operation, the second cylinder 16 is started, the second cylinder 16 drives the transmission plate 7 and all the structural parts on the transmission plate 7 to move upwards or downwards together, when the transmission plate 7 moves upwards, the top rod 26 makes the top wheel 27 top on the inner wall of the first sliding groove 22, promotes the base 21 to move inwards together with all the structural parts on the base 21 according to the opening trajectory of the first sliding groove 22, when the clamping plate 29 moves inwards and clamps the small connecting port at the top of the ton bag on the outer wall of the second discharging pipe 12, the pull rod 35 promotes the pull wheel 36 to pull the first branch plate 32 to make the second branch plate 33 and the second lifting hook 34 turn and move outwards together, at this time, the second lifting hook 34 pulls the lifting belt to make the ton bag open, when the base 21 continues to move inwards and the top wheel 27 moves to the upper side of the backing plate 24, the transmission plate 7 continues to move upwards to make the top wheel 27 top on the backing plate 24 to press downwards on the spring 25, that is, in the state that the ton bag is opened and the small connecting port is clamped and fixed, the ton bag as a whole is pulled and moved upwards to hang, at this time, the compound fertilizer raw material can enter the hanging ton bag through other external devices, the external connecting pipe, the connecting pipe 11 and the second discharging pipe 12 to be stored, the hanging ton bag can effectively avoid the occurrence of the situation that the ton bag is wrinkled to affect the storage of the raw material, when the ton bag is stored, the transmission plate 7 is moved downwards, and the reverse operation is performed according to the above content, that is, the clamping plate 29 moves outwards and loosens the small connecting port at the top of the ton bag sleeved on the second discharging pipe 12, at the same time, the second lifting hook 34 turns and moves inwards to fold and reset the lifting belt on the ton bag, and the ton bag falls on the second platform scale 15, so that the compound fertilizer raw material in the ton bag can be weighed by the second platform scale 15, after weighing, the lifting belt and the small connecting port at the top of the ton bag are taken off from the second lifting hook 34 and the second discharging pipe 12 respectively, the ton bag is transported away by other external devices such as a forklift, so that the whole weighing operation is completed.

[0051] The present application solves the pain points of the existing device by the cooperation of multiple components, the integrated system and the ton bag processing system, integrates the key components in a unified framework, disperses the radial force, avoids the deformation of the shelf, guarantees the precision and stability of the cylinder, and eliminates the risk of equipment damage. At the same time, it is suitable for various ton bags, clamps and fixes the small connecting port, saves the cost of additional connecting parts, prevents the leakage of raw materials, and provides a stable, efficient, safe and low-cost special platform for compound fertilizer weighing operation.

[0052] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A compound fertilizer raw material weighing device, characterized in that: Including support frame, transmission plate (7), clamping mechanism and hanging mechanism, and the transmission plate (7), the clamping mechanism and the hanging mechanism are all arranged in the support frame; The support frame includes a top plate (8) arranged in parallel with the transmission plate (7), a first communication hole (9) is formed in the top plate (8) and is connected with an external connecting pipe, a lifting mechanism is fixedly installed on the bottom end surface of the top plate (8), the extension end of the lifting mechanism is fixedly connected with the transmission plate (7), and the lifting mechanism can be lifted along the vertical direction to drive the transmission plate (7) to be lifted up and down relative to the top plate (8); A second communication hole (10) is formed in the transmission plate (7), and the second communication hole (10) is coaxially arranged with the first communication hole (9); the first communication hole (9) and the second communication hole (10) are connected through a connecting pipe (11); and a second blanking pipe (12) is connected below the second communication hole (10); The inside of the top plate (8) and the transmission plate (7) forms an adjusting space, and the clamping mechanism and the hanging mechanism are located in the adjusting space; The clamping mechanism includes four clamping bodies, each clamping body includes four side plates (17), the side plates (17) are arranged on one side of the top end of the transmission plate (7), two groups of guide rods (18) are arranged on the inside of the side plates (17), a movable connecting seat (19) is sleeved on the outer wall of the guide rod (18), a roller (20) that is in close contact with the transmission plate (7) is installed on the bottom end of the connecting seat (19), a base (21) is arranged on the inside of the connecting seat (19), first sliding grooves (22) are symmetrically formed on the front and rear sides of the inner wall of the base (21), the first sliding grooves (22) are arranged in an inclined manner, second sliding grooves (23) are formed on the left and right sides of the inner wall of the first sliding grooves (22), a pad (24) that can move up and down is embedded in the inner cavity of the second sliding grooves (23), one end of a spring (25) is installed on the bottom end surface of the pad (24), and the other end of the spring (25) is installed on the inner wall of the first sliding grooves (22); Top rods (26) are arranged at the four corners of the bottom end surface of the top plate (8), the bottom end of each top rod (26) extends into the inner cavity of the corresponding base (21), top wheels (27) are installed on the front and rear sides of the top rod (26), and the top wheels (27) extend into the inner cavity of the first sliding grooves (22); An "L"-shaped fixing frame (28) is installed on the bottom end surface of the base (21), the bottom end of the fixing frame (28) penetrates the transmission plate (7), a clamping plate (29) is installed on the opposite side of the fixing frame (28), the clamping plate (29) is located on the outside of the second blanking pipe (12), and a rubber pad (30) is arranged on the outer wall of the clamping plate (29). The hanging mechanism comprises a rotating rod (31) which is rotationally connected to the inner wall of the transmission plate (7), the top end of the rotating rod (31) is provided with a first supporting plate (32), the bottom end of the rotating rod (31) is provided with a second supporting plate (33), the bottom end of the second supporting plate (33) is provided with a second hook (34), one end of a pull rod (35) is arranged on one side of the base (21), the other end of the pull rod (35) extends into the inner cavity of the first supporting plate (32) and is provided with a pull wheel (36).

2. The compound fertilizer raw material weighing device according to claim 1, characterized in that: The support frame further comprises a bottom plate (13) and four connecting vertical beams (14) arranged between the top plate (8) and the bottom plate (13), the bottom plate (13) is provided with a recess, and the recess is provided with a second ground scale (15).

3. The compound fertilizer raw material weighing device according to claim 1, characterized in that: The connecting pipeline (11) is a metal bellows.

4. The compound fertilizer raw material weighing device according to claim 1, characterized in that: The lifting mechanism comprises four second air cylinders (16), and the second air cylinders (16) are arranged at the four corners of the bottom end surface of the top plate (8).

5. The compound fertilizer raw material weighing device according to claim 1, characterized in that: Four clamping bodies are arranged on the transmission plate (7) at intervals.

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