Full-automatic weighing and packing machine for sulfur powder

Abstract

The utility model provides a kind of sulphur powder full-automatic weighing packaging machine, including fine adjustment loading hopper, fine adjustment material supplement storehouse, support, loading hopper, weighing hopper and excessive hopper, fine adjustment loading hopper and loading hopper are side by side to be arranged in the top of support, fine adjustment loading hopper, loading hopper bottom part is equipped with fine adjustment material supplement storehouse and weighing hopper respectively, the storehouse body of fine adjustment material supplement storehouse is fixed on support main body, storehouse body is equipped with discharge gate, brushless motor is set in the bottom of storehouse body, the output end of brushless motor is located in storehouse body and is connected with rotary fan blade, loading hopper bottom is equipped with first discharge valve, weighing hopper is equipped with weight sensor, weighing hopper bottom is equipped with excessive hopper.The utility model uses fine adjustment material supplement storehouse compared to traditional vibration fine adjustment mode, on the one hand, can effectively eliminate the problems such as material splashing, weighing instability caused by vibration, on the other hand, through the precise control of the speed of brushless motor speed, greatly improve fine adjustment weighing efficiency and accuracy.

Description

Technical Field

[0001] This utility model belongs to the technical field of weighing and packaging machines, and specifically relates to a fully automatic weighing and packaging machine for sulfur powder. Background Technology

[0002] While existing sulfur powder weighing devices possess basic weighing functions, they still suffer from the following technical deficiencies in practical applications: 1. Inefficient fine-tuning method: Using mechanical vibration for weighing fine-tuning is not only slow, but also difficult to achieve precise control.

[0003] 2. Insufficient bagging stability: The continuous mechanical vibration generated by the vibration weighing can easily cause the connection between the packaging bag and the clamp to loosen, posing a risk of falling off.

[0004] 3. Lack of material drop control: Due to the lack of segmented valve design, the powder material falls in a free fall, and the instantaneous impact force is too large, which further aggravates the problem of packaging bag falling off.

[0005] 4. Design flaws in the suspension system: The packaging bags use a simple suspension fixing method, which makes them prone to displacement or even falling off under the combined effects of material impact and mechanical vibration, seriously affecting weighing accuracy and operational safety. Utility Model Content

[0006] To address the aforementioned problems with existing sulfur powder weighing devices, this invention provides a fully automatic sulfur powder weighing and packaging machine that ensures the stability and accuracy of the weighing process, achieves seamless integration of weighing and packaging procedures, and significantly improves production efficiency.

[0007] This utility model is achieved through the following technical solution: A fully automatic weighing and packaging machine for sulfur powder includes a fine-tuning feeding funnel, a fine-tuning replenishing hopper, a support frame, a feeding funnel, a weighing funnel, and a transition funnel; The fine-tuning filling funnel and the filling funnel are arranged side by side on the top of the support; the fine-tuning filling funnel and the main body of the support at the bottom of the filling funnel are respectively provided with a fine-tuning replenishing bin and a weighing funnel; The fine-tuning feed hopper includes a brushless motor, a hopper body, rotating fan blades, and support legs. The bottom of the hopper body is fixed to the main support body by the support legs, and a discharge port is provided along the inner edge of the hopper body. The brushless motor is located at the bottom of the hopper body, and the output end of the brushless motor is located inside the hopper body. The rotating fan blades are located inside the hopper body, and the center of the rotating fan blades is a cone. Several fan blades are evenly spaced around the cone, and a ring is connected around the fan blades. The center of the cone is connected to the output end of the brushless motor. The outer diameter of the ring fits the inner diameter of the hopper body. The bottom of the loading hopper is equipped with a first discharge valve; The weighing funnel is equipped with a weight sensor and a second discharge valve at the bottom; The transition funnel is located at the bottom of the weighing funnel, and a third discharge valve is provided at the bottom of the transition funnel; The bracket is equipped with a PLC controller, which is powered by an external power source. The PLC controller is electrically connected to the weight sensor, the first discharge valve, and the second discharge valve.

[0008] The working principle of this utility model is as follows: Sulfur powder to be packaged is fed in batches through a loading funnel, while precise replenishment is achieved through a fine-tuning loading funnel. A weight sensor inside the weighing funnel transmits material weight data to a PLC controller. When the material weight is significantly lower than the preset packaging value, the PLC controller opens the first discharge valve at the bottom of the loading funnel, allowing material to continuously flow into the weighing funnel. When the material weight in the weighing funnel approaches the preset packaging value, the PLC controller keeps the first discharge valve closed and starts the brushless motor of the fine-tuning loading funnel, driving the rotating blades to slowly draw material from the outlet into the weighing funnel for replenishment. When the weighing sensor detects that the material in the weighing funnel has reached the packaging value, the PLC controller stops the brushless motor and opens the second discharge valve at the bottom of the weighing funnel, allowing the material to fall into a transition funnel. The operator then places the packing straps on top of the transition funnel and opens the third discharge valve to fill the bags, completing the entire loading process. At the same time, the filling funnel can be used repeatedly to weigh the next bag, reducing waiting time.

[0009] As a further improvement of this utility model, a pair of fixed plates are fixed on the supports on both sides of the transition funnel. The two ends of the fixed plates are movably connected to a first rotating shaft. The two ends of the first rotating shaft are respectively hinged to an "I"-shaped plate. A second rotating shaft is movably connected between the "I"-shaped plates. The two ends of the second rotating shaft are fixedly connected to an "L"-shaped plate. The end of the "L"-shaped plate is fixed with a gripper. The two "I"-shaped plates on the same side are connected and driven by an electric telescopic rod. The electric telescopic rod is electrically connected to the PLC controller.

[0010] The grippers feature an anti-drop clamping structure that tightly secures the bag opening to the outlet of the transition funnel, reducing manual handling and ensuring the bag remains stable under load. This completely avoids the risk of bag detachment common in traditional packaging processes. Controlled by an electric telescopic rod and a PLC controller, the grippers open and close via a linkage structure of an "I"-shaped plate and an "L"-shaped plate, further reducing manual labor and improving packaging convenience.

[0011] As a further improvement of this utility model, a buffer placement platform is provided on the support at the bottom of the transition funnel. Bolts are movably connected around the buffer placement platform, and springs are provided on the main body at the bottom of the buffer placement platform. The bolts are fixedly mounted on the support.

[0012] A buffer platform is installed to hold the packaging bags. Even when the packaging bags are heavy after being filled with materials, they will not fall off the discharge port of the overflow funnel, thus improving the safety and efficiency of the packaging operation.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The fine-tuning feeding bin adopted in this utility model has significant advantages over the traditional vibration fine-tuning method. On the one hand, it can effectively eliminate problems such as material splashing and unstable weighing caused by vibration. On the other hand, the brushless motor speed can achieve precise control of the material dropping speed, which greatly improves the efficiency and accuracy of fine-tuning weighing.

[0014] 2. This utility model sets a gripper at the discharge port of the transition funnel to hold the opening of the packaging bag. The gripper is driven by an electric telescopic rod controlled by PLC to realize automated gripping of the packaging bag, which improves the gripping stability, makes the packaging operation safer and simpler, and thus improves the efficiency of the packaging operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the weighing and packaging machine of this utility model.

[0016] Figure 2 This is a cross-sectional view of the internal structure of the weighing and packaging machine of this utility model.

[0017] Figure 3 A schematic diagram of the structure of the replenishment hopper for fine-tuning.

[0018] Figure 4 This is a schematic diagram of the rotating fan blade structure for fine-tuning the fabric bin.

[0019] Reference numerals: 1-Fine-adjusting loading funnel, 2-Fine-adjusting replenishment bin, 3-Brushless motor, 4-Support, 5-Loading funnel, 6-First discharge valve, 7-Weighing funnel, 8-Transition funnel, 9-Gripper, 10-Third discharge valve, 11-Buffer placement platform, 12-Hopper body, 13-Rotating fan blade, 14-Support leg, 15-Discharge port, 16-Cone, 17-Ring, 18-Second discharge valve, 19-Fixing plate, 20-First rotating shaft, 21-Second rotating shaft, 22-“I”-shaped plate, 23-“L”-shaped plate, 24-Electric telescopic rod, 25-Bolt, 26-Spring. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings. In the embodiments, unless otherwise specified, the technical means used are all conventional technical means in the art. Example

[0021] like Figure 1-2 The fully automatic weighing and packaging machine for sulfur powder shown includes a fine-tuning feeding funnel 1, a fine-tuning replenishing bin 2, a support 4, a feeding funnel 5, a weighing funnel 7, and a transition funnel 8. The fine-tuning feeding funnel 1 and the feeding funnel 5 are arranged side by side on the top of the support 4; the main body of the support 4 at the bottom of the fine-tuning feeding funnel 1 and the feeding funnel 5 are respectively provided with a fine-tuning replenishing bin 2 and a weighing funnel 7. The fine-tuning feed bin 2 includes a brushless motor 3, a bin body 12, a rotating fan blade 13, and a support leg 14; the bin body 12 is as follows: Figure 3 As shown, the bottom of the body is fixed to the main body of the bracket 4 by support legs 14, and the inner edge of the bin 12 is provided with a discharge port 15; the brushless motor 3 is located at the bottom of the bin 12, and the output end of the brushless motor 4 is located inside the bin 12; the rotating fan blade 13 is as follows Figure 4 As shown, the rotating fan blade 13 is set inside the housing 12. The center of the rotating fan blade 13 is a cone 16. Several fan blades are evenly spaced around the cone 16. A ring 17 is connected around the fan blades. The center of the cone 16 is connected to the output end of the brushless motor 3. The outer diameter of the ring 17 fits the inner diameter of the housing 12. The bottom of the loading hopper 5 is provided with a first discharge valve 6; The weighing funnel 7 is equipped with a weight sensor and a second discharge valve 18 at the bottom; The transition funnel 8 is located at the bottom of the weighing funnel 7, and a third discharge valve 10 is provided at the bottom of the transition funnel 8; The bracket 4 is equipped with a PLC controller, which is powered by an external power source. The PLC controller is electrically connected to the weight sensor, the first discharge valve 6, and the second discharge valve 18.

[0022] The working principle of this embodiment is as follows: The sulfur powder to be packaged is fed in batches through the loading funnel 5, while precise replenishment is performed through the fine-tuning loading funnel 1. A weight sensor installed inside the weighing funnel 7 transmits material weight data to the PLC controller. When the material weight is significantly less than the preset packaging value, the PLC controller opens the first discharge valve 6 at the bottom of the loading funnel 5, allowing material to continuously flow into the weighing funnel 7. When the material weight in the weighing funnel 7 approaches the preset packaging value, the PLC controller keeps the first discharge valve 6 closed and starts the brushless motor 3 of the fine-tuning loading funnel 1 to drive the rotating fan blade 13. The rotating fan blade 13 slowly draws material from the outlet 15 into the weighing funnel 7 for replenishment. When the weighing sensor detects that the material in the weighing funnel 7 has reached the packaging value, the PLC controller stops the brushless motor 3 and simultaneously opens the second discharge valve 18 at the bottom of the weighing funnel 7, allowing the material to fall into the transition funnel 8. The operator places the packing strap on top of the transition funnel 8 and opens the third discharge valve 10 to fill the bag, completing the entire filling process. Meanwhile, the loading funnel 5 can be repeatedly weighed for the next bag, reducing waiting time. Example

[0023] This embodiment is a further improvement based on Embodiment 1, as detailed below: A pair of fixing plates 19 are fixed on the brackets 4 on both sides of the transition funnel 8. The two ends of the fixing plates 19 are movably connected to the first rotating shaft 20. The two ends of the first rotating shaft 20 are respectively hinged to the I-shaped plates 22. The I-shaped plates 22 are movably connected to the second rotating shaft 21. The two ends of the second rotating shaft 21 are fixedly connected to the L-shaped plates 23. The end of the L-shaped plates 23 is fixed with a gripper 9. The two I-shaped plates 22 on the same side are connected and driven by an electric telescopic rod 24. The electric telescopic rod 24 is electrically connected to the PLC controller.

[0024] The working principle of this embodiment is the same as that of Embodiment 1. The gripper 9 adopts an anti-drop-off clamping structure, which can tightly fasten the bag opening to the discharge port of the transition funnel 8, reducing manual gripping and ensuring that the bag remains stable under load, completely avoiding the risk of bag falling off that is common in traditional packaging processes. The gripper 9 is controlled by an electric telescopic rod 24 in conjunction with a PLC controller. The opening and closing of the gripper 9 is realized through the linkage structure of the "I"-shaped plate 22 and the "L"-shaped plate 23, which reduces manual labor and improves the simplicity of packaging. Example

[0025] This embodiment is a further improvement based on embodiment 2, as detailed below: The bottom of the transition funnel 8 is provided with a buffer placement platform 11 on the support 4. Bolts 25 are movably connected around the buffer placement platform 11. The bolts 25 are located on the main body at the bottom of the buffer placement platform 11 and are provided with springs 26. The bolts 25 are fixedly installed on the support 4.

[0026] The working principle of this embodiment is the same as that of embodiment 2. A buffer placement platform 11 is set up to place the packaging bag. Even if the packaging bag is very heavy after being filled with materials, it will not fall off the discharge port of the transition funnel 8, thus improving the safety and efficiency of the packaging operation.

[0027] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The protection scope of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of this utility model.

[0028] It should be specifically noted that the orientations or positional relationships indicated by terms such as "front," "rear," "left," "right," "up," and "down" are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships commonly used when the product is in use. These are merely for the purpose of describing the present invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

Claims

1. A fully automatic weighing and packaging machine for sulfur powder, characterized in that: It includes a fine-tuning loading funnel (1), a fine-tuning replenishing bin (2), a support (4), a loading funnel (5), a weighing funnel (7), and a transition funnel (8). The fine-tuning loading funnel (1) and the loading funnel (5) are arranged side by side on the top of the support (4); the fine-tuning loading funnel (1) and the loading funnel (5) are respectively provided with a fine-tuning replenishing bin (2) and a weighing funnel (7) on the main body of the support (4) at the bottom of the support (4). The fine-tuning feed bin (2) includes a brushless motor (3), a bin body (12), a rotating fan blade (13), and a support leg (14); the bottom of the bin body (12) is fixed to the main body of the bracket (4) by the support leg (14), and the inner edge of the bin body (12) is provided with a discharge port (15); the brushless motor (3) is located at the bottom of the bin body (12), and the output end of the brushless motor (4) is located inside the bin body (12); the rotating fan blade (13) is located inside the bin body (12), and the middle part of the rotating fan blade (13) is a cone (16), and several fan blades are evenly spaced around the cone (16), and a ring (17) is connected around the fan blade; the middle part of the cone (16) is connected to the output end of the brushless motor (3); the outer diameter of the ring (17) fits the inner diameter of the bin body (12); The bottom of the loading hopper (5) is provided with a first discharge valve (6); The weighing funnel (7) is equipped with a weight sensor and a second discharge valve (18) at the bottom. The transition funnel (8) is located at the bottom of the weighing funnel (7), and a third discharge valve (10) is provided at the bottom of the transition funnel (8). The bracket (4) is equipped with a PLC controller, which is powered by an external power source. The PLC controller is electrically connected to the weight sensor, the first discharge valve (6), and the second discharge valve (18).

2. The fully automatic sulfur powder weighing and packaging machine according to claim 1, characterized in that: A pair of fixing plates (19) are fixed on the brackets (4) on both sides of the transition funnel (8). The two ends of the fixing plates (19) are movably connected to the first rotating shaft (20). The two ends of the first rotating shaft (20) are respectively hinged to the I-shaped plates (22). The two I-shaped plates (22) are movably connected to the second rotating shaft (21). The two ends of the second rotating shaft (21) are fixedly connected to the L-shaped plates (23). The end of the L-shaped plates (23) is fixed with a clamp (9). Two I-shaped plates (22) set on the same side are connected and driven by an electric telescopic rod (24); The electric telescopic rod (24) is electrically connected to the PLC controller.

3. The fully automatic sulfur powder weighing and packaging machine according to claim 1, characterized in that: The bottom support (4) of the transition funnel (8) is provided with a buffer placement platform (11), and bolts (25) are movably connected around the buffer placement platform (11). The bolts (25) are located on the main body at the bottom of the buffer placement platform (11) and are provided with springs (26). The bolts (25) are fixedly installed on the support (4).

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