Gravity bucket-free ton bag scale

Abstract

The utility model discloses a gravity bucket-free ton bag scale which comprises a base frame and an unloading weighing position installed on the base frame. The unloading weighing position comprises a lifting weighing part and an unloading part which are mounted on the base frame; the lifting weighing part comprises a lifting frame matched with the base frame, a weighing frame connected with the lifting frame, and a bag body connecting cylinder connected with the weighing frame, the bag body connecting cylinder comprises a corrugated cylinder, one end of the corrugated cylinder is connected with the weighing frame, and the other end of the corrugated cylinder is connected with the weighing frame; the fixed cylinder is connected with the weighing frame and is communicated with the corrugated cylinder; the bag body fixing piece comprises an air nozzle connected with the fixing cylinder, an air channel communicated with the air nozzle and an air bag communicated with the air channel and arranged on the periphery of the fixing cylinder; the air nozzle is externally connected with an injection air pipe; the bag body hoop frame is connected with the weighing frame and arranged on the periphery of the air bag in a sleeving mode, and a preset distance exists between the bag body hoop frame and the air bag. The lifting frame is connected with a dust suction pipe, and the input end of the dust suction pipe is located at the fixing cylinder.

Description

Technical Field

[0001] This utility model relates to the field of packaging scales, specifically a gravity hopperless ton bag scale. Background Technology

[0002] A ton bag scale is a large-scale weighing and packaging equipment. The product is positioned as an industrial packaging machine that integrates electronic weighing, automatic bag removal and dust removal functions. It is mainly used in the mining, chemical, building materials, grain and feed industries.

[0003] The equipment consists of a pneumatic hook clamping system, an air inflation and deflation mechanism, a feeding and metering control mechanism, and a hydraulic lifting system. It uses an electronic platform scale for metering and supports automatic tare, zeroing, and drop correction functions.

[0004] Currently, when filling ton bag weighing systems, the bag opening is connected to the discharge cylinder. As material is being injected into the ton bag, dust overflows from the connection gap, causing dust to drift out around the bag opening and affecting the working environment. Utility Model Content

[0005] Purpose of the utility model: To provide a gravity-feedless ton bag scale to solve the above-mentioned problems existing in the prior art.

[0006] Technical solution: A gravity hopperless ton bag scale, comprising:

[0007] The base frame, and the unloading weighing position installed on the base frame;

[0008] The unloading weighing position includes a lifting weighing part and an unloading part installed on the base frame;

[0009] The lifting and weighing unit includes a lifting frame adapted to the base frame, a weighing frame connected to the lifting frame, and a bag connecting cylinder connected to the weighing frame. The bag connecting cylinder includes:

[0010] A corrugated cylinder, one end of which is connected to the weighing frame;

[0011] A fixed cylinder is connected to the weighing frame and communicates with the corrugated cylinder;

[0012] The bag fixing component includes an air nozzle connected to the fixing cylinder, an air passage communicating with the air nozzle, and an air bladder communicating with the air passage and disposed around the fixing cylinder; the air nozzle is externally connected to an injection air tube;

[0013] The bag body hoop is connected to the weighing frame, is fitted around the airbag, and has a predetermined distance between it and the airbag;

[0014] The lifting frame is connected to a vacuum pipe, the input end of the vacuum pipe is located at the fixed cylinder, the vacuum pipe is equipped with a vacuum fan blade, and the vacuum pipe is equipped with a vacuum motor whose output end is connected to the vacuum fan blade.

[0015] The output end of the suction pipe can be connected to other discharge points or external dust removal devices such as bag filters.

[0016] This utility model uses a bag-body fixing component in conjunction with a bag-body hoop to secure the bag opening of a ton bag. During fixing, the bag opening is placed over the fixing cylinder, and air is inflated into the air bladder. The air bladder compresses the bag opening until it comes into contact with the bag-body hoop, thus completing the fixation. This fixing method ensures a tighter connection between the bag opening and the fixing cylinder, resulting in less dust overflowing during loading. Furthermore, during loading, dust overflowing from the periphery of the fixing cylinder is sucked out through a dust suction pipe to other locations, preventing dust accumulation that could affect the work.

[0017] In a further embodiment, the base frame is provided with a sliding groove, and the two sides of the lifting frame are provided with rollers that are adapted to the sliding groove;

[0018] The base frame is equipped with a lifting cylinder whose output end is connected to the lifting frame;

[0019] The lifting frame is equipped with a weighing sensor.

[0020] In a further embodiment, the weighing frame is provided with a connecting shaft that is connected to the weighing sensor;

[0021] The weighing frame is equipped with a fixed arm and a rotating arm, and hooks are provided at the ends of the fixed arm and the rotating arm.

[0022] The fixed arm is fixedly connected to the weighing frame, and two fixed arms are designed. The rotating arm is rotatably connected to the weighing frame, and two rotating arms are designed.

[0023] The weighing frame is connected to a limiting stud. One end of the limiting stud is fixedly connected to the weighing frame by a fixing nut. The other end of the limiting stud passes through the lifting frame and a limiting nut is provided at the end of the limiting stud. There is a predetermined distance between the limiting nut and the lifting frame, and the limiting nut abuts against the lifting frame.

[0024] In a further embodiment, the rotating arm includes:

[0025] A rotary cylinder is mounted on the weighing frame;

[0026] The rotating frame is hinged to the output end of the rotary cylinder;

[0027] A boom is rotatably connected to the weighing frame, and the boom is provided with a boom shaft that is inserted into the weighing frame and connected to the rotating frame.

[0028] By designing a rotating arm, the position of the hook can be adjusted, making it easier to hang the bag handles of the ton bag.

[0029] In a further embodiment, the hook includes:

[0030] Hook frame, connected to fixed arm or boom;

[0031] The hook body is fixedly connected to the hook body frame;

[0032] Adjust the hook body to rotatably connect with the hook body frame;

[0033] The hook body cylinder is hinged to the hook body frame, and the output end of the hook body cylinder is hinged to the adjusting hook body.

[0034] In a further embodiment, the unloading section includes:

[0035] The unloading compartment is mounted on the base frame;

[0036] The unloading cylinder includes an outer cylinder connected to the base frame, an inner cylinder disposed inside the outer cylinder, the inner cylinder and the outer cylinder having a predetermined cavity to form a blower channel, the inner cylinder communicating with the unloading chamber, and the other end of the corrugated cylinder being connected to the outer cylinder;

[0037] The blower assembly includes a blower mounted on the base frame and a blower pipe connected to the output end of the blower and communicating with the blower duct.

[0038] By designing an air duct, the ton bag can be inflated after it is connected to the fixed cylinder, thus preventing it from collapsing and affecting the filling of materials.

[0039] In a further embodiment, the unloading chamber includes:

[0040] The hull is connected to the base frame;

[0041] A hopper is disposed inside the hull, and a discharge port is opened at the bottom of the hopper; the inner cylinder is connected to the discharge port;

[0042] A discharge cylinder is hinged to the hull, and a discharge swing frame is hinged to the output end of the discharge cylinder. A discharge rotating shaft inserted into the hull is connected to the discharge swing frame, and an intercepting bucket adapted to the discharge port is connected to the discharge rotating shaft.

[0043] By designing an interceptor bucket, the material connection between the bucket and the inner cylinder can be cut off in a timely manner after loading stops.

[0044] Beneficial effects: This utility model discloses a gravity-fed hopperless ton bag scale. This utility model uses a bag body fixing component in conjunction with a bag body hoop to fix the bag mouth. During fixing, the bag mouth is placed on the fixing cylinder, and air is inflated into the air bladder, which compresses the bag mouth until it abuts against the bag body hoop, thus completing the fixation. This fixing method makes the fixation between the bag mouth and the fixing cylinder closer, resulting in less dust overflowing during loading. At the same time, during loading, the dust overflowing from the periphery of the fixing cylinder is sucked out to other locations through the dust suction pipe, preventing dust accumulation in that area from affecting the operation. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of this utility model.

[0046] Figure 2 This is a schematic diagram of the unloading and weighing position structure of this utility model.

[0047] Figure 3 This is a schematic diagram of the lifting and weighing part of this utility model.

[0048] Figure 4 This is a schematic diagram of the hook structure of this utility model.

[0049] Figure 5 This is a partially enlarged structural diagram of the weighing sensor of this utility model.

[0050] Figure 6 This is a schematic diagram of the unloading section of this utility model.

[0051] Figure 7 This is a schematic diagram of the internal structure of the unloading compartment of this utility model.

[0052] Figure 8 This is a schematic diagram of the bag connecting cylinder and unloading cylinder of this utility model.

[0053] Figure 9 This is a cross-sectional structural diagram of the bag connecting cylinder and unloading cylinder of this utility model.

[0054] Figure 10 This is a schematic diagram of the bag fixing component of this utility model.

[0055] The attached figures are labeled as follows:

[0056] 1. Base frame;

[0057] 2. Unloading and weighing position;

[0058] 21. Lifting and weighing unit; 211. Lifting frame; 212. Roller; 213. Weighing frame; 213A. Limiting stud; 214. Fixed arm; 215. Rotating arm; 215A. Rotating cylinder; 215B. Rotating frame; 215C. Boom;

[0059] 216. Hook; 216A. Hook frame; 216B. Fixed hook body; 216C. Adjustable hook body; 216D. Hook body cylinder;

[0060] 217. Bag body connecting tube; 217A. Corrugated tube; 217B. Fixing tube; 217C. Bag body fixing component; 217C1. Air nozzle; 217C2. Air passage; 217C3. Airbag;

[0061] 217D, bag body clamp;

[0062] 218. Connecting shaft; 219. Weighing sensor;

[0063] 22. Unloading section; 221. Unloading chamber; 221A. Hopper; 221B. Unloading cylinder; 221C. Unloading swing frame; 221D. Unloading shaft; 221E. Interception bucket;

[0064] 222. Unloading cylinder; 222A, outer cylinder; 222B, inner cylinder;

[0065] 223. Blower; 224. Blower duct;

[0066] 23. Vacuum suction pipe. Detailed Implementation

[0067] This application relates to a gravity hopperless ton bag scale, which will be explained in detail below through specific embodiments.

[0068] A gravity hopperless ton bag scale, comprising:

[0069] Base frame 1, and unloading weighing position 2 installed on the base frame 1;

[0070] The unloading weighing position 2 includes a lifting weighing part 21 and an unloading part 22 installed on the base frame 1;

[0071] The lifting and weighing unit 21 includes a lifting frame 211 adapted to the base frame 1, a weighing frame 213 connected to the lifting frame 211, and a bag connecting tube 217 connected to the weighing frame 213. The bag connecting tube 217 includes:

[0072] Corrugated cylinder 217A, one end of which is connected to the weighing frame 213;

[0073] Fixed cylinder 217B is connected to the weighing frame 213 and communicates with the corrugated cylinder 217A;

[0074] The bag fixing component 217C includes an air nozzle 217C1 connected to the fixing cylinder 217B, an air passage 217C2 communicating with the air nozzle 217C1, and an airbag 217C3 communicating with the air passage 217C2 and disposed around the fixing cylinder 217B; the air nozzle 217C1 is externally connected to an air injection tube.

[0075] The bag body hoop 217D is connected to the weighing frame 213, is sleeved around the airbag 217C3, and has a predetermined distance between it and the airbag 217C3.

[0076] The lifting frame 211 is connected to a vacuum pipe 23. The input end of the vacuum pipe 23 is located at the fixed cylinder 217B. The vacuum pipe 23 is equipped with a vacuum fan blade. The vacuum pipe 23 is equipped with a vacuum motor whose output end is connected to the vacuum fan blade.

[0077] The output end of the suction pipe 23 can be connected to other discharge points or external dust removal devices such as bag filters.

[0078] This utility model uses a bag body fixing component 217C in conjunction with a bag body clamp 217D to fix the bag opening of the ton bag. During fixing, the bag opening is placed on the fixing cylinder 217B, and air is inflated into the air vent, allowing the gas to enter the air bladder 217C3. The air bladder 217C3 compresses the bag opening until it abuts against the bag body clamp 217D, thus completing the fixation. This fixing method makes the fixation between the bag opening and the fixing cylinder 217B closer, resulting in less dust overflowing during loading. At the same time, during loading, the dust overflowing from the periphery of the fixing cylinder 217B is sucked out to other locations through the dust suction pipe 23, preventing dust accumulation in that area from affecting the work.

[0079] The base frame 1 has a sliding groove, and the lifting frame 211 has rollers 212 on both sides that are adapted to the sliding groove;

[0080] The base frame 1 is equipped with a lifting cylinder whose output end is connected to the lifting frame 211;

[0081] The lifting frame 211 is equipped with a weighing sensor 219.

[0082] The weighing frame 213 is provided with a connecting shaft 218 that is connected to the weighing sensor 219;

[0083] The weighing frame 213 is provided with a fixed arm 214 and a rotating arm 215, and the ends of the fixed arm 214 and the rotating arm 215 are provided with hooks 216.

[0084] The fixed arm 214 is fixedly connected to the weighing frame 213, and two fixed arms 214 are designed. The rotating arm 215 is rotatably connected to the weighing frame 213, and two rotating arms 215 are designed.

[0085] The weighing frame 213 is connected to a limiting stud 213A. One end of the limiting stud 213A is fixedly connected to the weighing frame 213 by a fixing nut. The other end of the limiting stud 213A passes through the lifting frame 211 and a limiting nut is provided at the end of the limiting stud 213A. There is a predetermined distance between the limiting nut and the lifting frame 211, and the limiting nut abuts against the lifting frame 211.

[0086] The rotating arm 215 includes:

[0087] A rotary cylinder 215A is mounted on the weighing frame 213;

[0088] The rotating frame 215B is hinged to the output end of the rotating cylinder 215A;

[0089] The boom 215C is rotatably connected to the weighing frame 213, and the boom 215C is provided with a boom shaft that is inserted into the weighing frame 213 and connected to the rotating frame 215B.

[0090] By designing a rotating arm 215, the position of the hook 216 can be adjusted, making it easier to hang the bag handles of the ton bag.

[0091] The hook 216 includes:

[0092] Hook frame 216A is connected to fixed arm 214 or arm 215C;

[0093] The fixed hook body 216B is fixedly connected to the hook body frame 216A;

[0094] Adjust the hook body 216C to be rotatably connected to the hook body frame 216A;

[0095] Hook cylinder 216D is hinged to hook frame 216A, and the output end of hook cylinder 216D is hinged to adjusting hook 216C.

[0096] The unloading section 22 includes:

[0097] The unloading compartment 221 is mounted on the base frame 1;

[0098] The unloading cylinder 222 includes an outer cylinder 222A connected to the base frame 1, an inner cylinder 222B disposed inside the outer cylinder 222A, the inner cylinder 222B and the outer cylinder 222A having a predetermined cavity to form an air duct, the inner cylinder 222B communicating with the unloading chamber 221, and the other end of the corrugated cylinder 217A being connected to the outer cylinder 222A;

[0099] The blower includes a blower 223 mounted on the base frame 1 and a blower pipe 224 connected to the output end of the blower 223 and communicating with the blower duct.

[0100] By designing an air duct, the ton bag can be inflated after it is connected to the fixed cylinder 217B, thus preventing the ton bag from collapsing and affecting the filling of materials.

[0101] The unloading chamber 221 includes:

[0102] The hull is connected to the base frame 1;

[0103] A hopper 221A is disposed inside the hopper shell, and a discharge port is opened at the bottom of the hopper 221A; the inner cylinder 222B is connected to the discharge port;

[0104] The unloading cylinder 221B is hinged to the hull. The output end of the unloading cylinder 221B is hinged to the unloading swing frame 221C. The unloading swing frame 221C is connected to the unloading shaft 221D which is inserted into the hull. The unloading shaft 221D is connected to the interception bucket 221E which is adapted to the discharge port.

[0105] By designing an interceptor hopper 221E to intercept the inner cylinder 222B, the material connection between the inner cylinder 221A and the inner cylinder 222B can be cut off in a timely manner after the loading stops.

[0106] Working principle description: During operation, the bag opening of the ton bag is placed on the fixing cylinder 217B. Gas is injected through the air nozzle 217C1 and then through the air passage 217C2 into the air bladder 217C3. The air bladder 217C3 inflates and expands the bag opening outward until it abuts against the bag body hoop 217D, thus completing the fixation.

[0107] Next, put the bag lugs of the ton bag onto the adjusting hook body 216C. The adjusting hook body 216C is driven by the hook body cylinder 216D to contact the fixed hook body 216B, thus completing the fixing of the bag lugs.

[0108] After being fixed, the blower 223 operates to introduce gas into the blower pipe 224, which then enters the ton bag through the blower duct, causing the ton bag to open.

[0109] After being opened, the lifting frame 211 is lifted by the lifting cylinder to suspend the ton bag in the air. The unloading cylinder 221B drives the unloading swing frame 221C to move, which drives the unloading shaft 221D to rotate. This causes the intercepting bucket 221E to detach from the discharge port of the hopper 221A. The material in the hopper 221A falls into the inner cylinder 222B and then into the ton bag. During the filling process, the weight is detected by the weighing sensor 219. After the predetermined weight is reached, the intercepting bucket 221E intercepts the hopper 221A to complete the filling work.

[0110] During the filling process, the dust at the opening of the ton bag is sucked up by the dust suction pipe 23 and discharged to another location. During operation, the dust removal motor drives the dust removal fan blades to draw the dust out to another location.

[0111] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A gravity-operated hopperless ton bag scale, comprising: The base frame, and the unloading weighing position installed on the base frame; The unloading weighing position is characterized in that it includes a lifting weighing part and an unloading part installed on the base frame; The lifting and weighing unit includes a lifting frame adapted to the base frame, a weighing frame connected to the lifting frame, and a bag connecting cylinder connected to the weighing frame. The bag connecting cylinder includes: A corrugated cylinder, one end of which is connected to the weighing frame; A fixed cylinder is connected to the weighing frame and communicates with the corrugated cylinder; The bag fixing component includes an air nozzle connected to the fixing cylinder, an air passage communicating with the air nozzle, and an airbag communicating with the air passage and disposed around the fixing cylinder. The bag body hoop is connected to the weighing frame, is fitted around the airbag, and has a predetermined distance between it and the airbag; The lifting frame is connected to a vacuum pipe, the input end of which is located at the fixed cylinder. The vacuum pipe contains a vacuum fan blade, and the vacuum pipe is equipped with a vacuum motor whose output end is connected to the vacuum fan blade.

2. The gravity hopperless ton bag scale according to claim 1, characterized in that: The base frame has a sliding groove, and the lifting frame has rollers on both sides that are adapted to the sliding groove; The base frame is equipped with a lifting cylinder whose output end is connected to the lifting frame; The lifting frame is equipped with a weighing sensor.

3. The gravity hopperless ton bag scale according to claim 1, characterized in that: The weighing frame is equipped with a connecting shaft that connects to the weighing sensor. The weighing frame is equipped with a fixed arm and a rotating arm, and the ends of the fixed arm and the rotating arm are equipped with hooks.

4. A gravity hopperless ton bag scale according to claim 3, characterized in that: The rotating arm includes: A rotary cylinder is mounted on the weighing frame; The rotating frame is hinged to the output end of the rotary cylinder; A boom is rotatably connected to the weighing frame, and the boom is provided with a boom shaft that is inserted into the weighing frame and connected to the rotating frame.

5. A gravity hopperless ton bag scale according to claim 3, characterized in that: The hook includes: Hook frame, connected to fixed arm or boom; The hook body is fixedly connected to the hook body frame; Adjust the hook body to rotatably connect with the hook body frame; The hook body cylinder is hinged to the hook body frame, and the output end of the hook body cylinder is hinged to the adjusting hook body.

6. A gravity-fed hopperless ton bag scale according to claim 1, characterized in that: The unloading section includes: The unloading compartment is mounted on the base frame; The unloading cylinder includes an outer cylinder connected to the base frame, an inner cylinder disposed inside the outer cylinder, the inner cylinder and the outer cylinder having a predetermined cavity to form a blower channel, the inner cylinder communicating with the unloading chamber, and the other end of the corrugated cylinder being connected to the outer cylinder; The blower assembly includes a blower mounted on the base frame and a blower pipe connected to the output end of the blower and communicating with the blower duct.

7. A gravity hopperless ton bag scale according to claim 6, characterized in that: The unloading compartment includes: The hull is connected to the base frame; A hopper is disposed inside the hull, and a discharge port is opened at the bottom of the hopper; The unloading cylinder is hinged to the hull, and the output end of the unloading cylinder is hinged to the unloading swing frame. The unloading swing frame is connected to the unloading shaft inserted into the hull, and the unloading swing frame is connected to the interception bucket adapted to the discharge port.

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