Quantitative packaging bag filling equipment

Abstract

The utility model relates to a quantitative packaging bag filling device which comprises an outer cylinder fixed on a machine base, a discharging end connected with a material bag arranged at the bottom, a closed top and a feeding end arranged on the side wall; the spiral discharging mechanism comprises a spiral discharging hopper and comprises a rotating outer frame, a hoisting plate and a spiral discharging plate, the included angle is smaller than 15 degrees, and a hoisting shaft fixes a spiral inner ring; the weighing mechanism comprises a weighing device fixed at the top and is connected with the top end of the hoisting shaft; the rotary discharging mechanism comprises a driving motor and a driving gear ring, and the driving gear ring is in transmission connection with a motor shaft and is connected with the hoisting shaft through a sliding key structure; the quantitative discharging mechanism comprises a feeding hole and a spiral feeder, and comprises a feeding pipe, a spiral feeding paddle, a charging hole and a driving motor; quantitative material filling is achieved, and the material filling efficiency and precision are improved.

Description

Technical Field

[0001] The utility model relates to quantitative packaging bag filling equipment, belonging to the field of material filling equipment. Background Art

[0002] The current quantitative filling equipment mainly relies on setting up a weighing mechanism in the material conveying pipeline. The material is quantitatively weighed and then discharged by tilting the entire weighing mechanism. This structure requires the entire weighing mechanism to be movably connected. The swinging inclination and limited surface area of ​​the weighing mechanism will cause the material to fall partially, which will eventually affect the weighing accuracy. In addition, although the spiral quantitative feeding equipment can achieve quantitative addition of materials by adjusting the number of spiral turns to a certain length, for materials with smaller particles, the surface friction and gravity will collapse inside the particles, making it impossible for the screw to accurately convey the material. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the technical problems in the prior art and provide a quantitative packaging bag filling device.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A quantitative packaging bag filling device, comprising:

[0006] The outer cylinder is fixed on the machine base, a discharge end is arranged at the bottom of the outer cylinder, the discharge end is used to connect the material bag, the top of the outer cylinder is a closed structure, and a feed end is arranged on the top side wall of the outer cylinder;

[0007] The spiral discharging mechanism comprises a spiral discharging hopper, which comprises a rotating outer frame, a hoisting plate is coaxially fixed to the bottom of the rotating outer frame, a discharging plate with a spiral structure is fixed inside the rotating outer frame, the angle between the discharging plate and the ground is less than 15°, a hoisting shaft is vertically fixed in the middle of the hoisting plate, and the spiral inner ring of the discharging plate is fixed to the hoisting shaft;

[0008] The weighing mechanism includes a weighing device fixed to the top of the outer cylinder, and a weighing sensor end of the weighing device is fixedly connected to the top of the lifting shaft;

[0009] The rotary unloading mechanism comprises a driving motor fixed to the top of the outer cylinder, a driving gear ring coaxially arranged with the hoisting shaft is rotatably connected to the top of the outer cylinder, the driving gear ring is drivingly connected to the motor shaft of the driving motor, and the inner ring of the driving gear ring is connected to the hoisting shaft through a sliding key structure whose sliding axis is parallel to the axis of the hoisting shaft;

[0010] The quantitative feeding mechanism includes a feeding port fixed to the top side wall of the outer cylinder, the feeding port is connected to a screw feeder, the screw feeder includes a feeding pipe, a spiral feeding paddle is rotatably connected in the feeding pipe, a feeding port is arranged on the side wall of the feeding pipe, and a feeding motor for driving the feeding paddle to rotate is connected to the tail end of the feeding pipe.

[0011] As a further improvement of the present invention, a sliding support mechanism is arranged on the inner wall surface of the outer cylinder, and the sliding support mechanism includes several groups of annular sliding plates made of nylon material, and the middle part of the sliding plate is integrally bent and provided with a bent protrusion that is in sliding contact with the outer wall surface of the rotating outer frame; the sliding plate can prevent direct friction between the outer cylinder and the spiral discharge hopper, thereby improving the service life of the outer cylinder structure and reducing the resistance to rotation.

[0012] As a further improvement of the present invention, a material guide hopper is fixed in the middle of the outer cylinder. The material guide hopper is a tapered structure. The expanded end of the material guide hopper is in sealing contact with the inner wall of the outer cylinder, and the contracted end of the material guide hopper is in sliding contact with the top inner wall of the rotating outer frame. The material guide hopper can prevent materials from falling into the gap between the outer cylinder and the spiral discharge hopper.

[0013] As a further improvement of the present utility model, the outer cylinder includes an upper outer cylinder and a lower outer cylinder, the upper outer cylinder and the lower outer cylinder are fixedly connected by a flange structure, a second connecting ring is fixed on the bottom inner wall of the upper outer cylinder, and the guide hopper is fixed on the second connecting ring; the split structure of the outer cylinder facilitates the disassembly and maintenance of the internal structure.

[0014] As a further improvement of the utility model, an auxiliary sliding sheet is arranged on the top of the rotating outer frame, and the middle part of the sliding sheet is integrally bent to provide a bent protrusion that is in sliding contact with the constricted end of the guide hopper.

[0015] As a further improvement of the utility model, a top support frame is coaxially fixedly connected to the top of the outer cylinder, a connecting ring is coaxially and integrally fixed to the top of the driving gear ring, the connecting ring and the top of the top support frame are rotatably connected via a bearing, a weighing bracket is fixed to the top of the top support frame, and the weighing device is fixed to the top of the weighing bracket; the driving motor is fixed to the inner wall of the top support frame via a bracket; the top support frame allows the entire rotating weighing structure to be separated from the outer cylinder for easy independent maintenance.

[0016] As a further improvement of the utility model, a limiting sleeve is fixed at the top of the outer cylinder, a pushing plate is coaxially fixed on the lifting shaft, and a return spring is arranged between the pushing plate and the limiting sleeve; the return spring can assist the weighing structure to lift the spiral discharge hopper upward, thereby preventing the weighing structure from reducing its accuracy due to long-term operation.

[0017] As a further improvement of the utility model, a bag fixing ring is provided on the outer wall of the bottom of the outer cylinder, and a plurality of bag fixing grooves are provided in a linear array on the outer wall of the bag fixing ring; the bag fixing grooves on the bag fixing ring facilitate the inlaying and fixing of the opening position of the bag.

[0018] As a further improvement of the utility model, a discharge hopper is fixed on the inner wall of the outer cylinder through a first connecting ring. The discharge hopper is a tapered structure, and the flared end of the discharge hopper is fixed to the first connecting ring. The discharge hopper can ensure that the material is completely poured into the material bag, reducing the possibility of leakage.

[0019] The beneficial effects of the utility model are:

[0020] The utility model uses a low-angle discharge plate, and when the entire discharge plate does not rotate, the material will accumulate on the top of the entire spiral discharge hopper due to the friction between the surface of the discharge plate and the friction inside the material. At the same time, the weighing mechanism and the quantitative adding mechanism on the top can accurately control the weight of the material on the top of the spiral discharge hopper. When the filling reaches the required amount, the spiral discharge hopper can be rotated to discharge the material and then fill the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0023] Figure 2 It is a cross-sectional schematic diagram of the quantitative feeding mechanism;

[0024] In the figure: 1. upper outer cylinder; 2. lower outer cylinder; 3. outer cylinder top cover; 4. rotating outer frame; 5. lifting plate; 6. discharge plate; 7. lifting shaft; 8. sliding piece; 9. second connecting ring; 10. guide hopper; 11. first connecting ring; 12. discharge hopper; 13. bag fixing ring; 14. flange structure; 15. top support frame; 16. drive motor; 17. drive gear ring; 18. sliding key structure; 19. weighing bracket; 20. weighing device; 21. limit sleeve; 22. push plate; 23. return spring; 24. gear transmission mechanism; 25. feed port; 26. feed pipe; 27. feed paddle; 28. feeding port; 29. ​​feed motor. DETAILED DESCRIPTION

[0025] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0026] like Figure 1 , a quantitative packaging bag filling device, comprising:

[0027] The outer cylinder is fixed on the machine base, a discharge end is arranged at the bottom of the outer cylinder, and the discharge end is used to connect the material bag. The top of the outer cylinder is a closed structure, and a feed end is arranged on the top side wall of the outer cylinder. The outer cylinder is divided into an upper outer cylinder and a lower outer cylinder, and the upper outer cylinder and the lower outer cylinder are fixedly connected by a flange structure. A flat outer cylinder top cover is fixed on the top of the upper outer cylinder, a second connecting ring is fixed on the bottom inner wall of the upper outer cylinder, and a guide hopper with a tapered structure is fixed on the second connecting ring;

[0028] The spiral discharging mechanism comprises a spiral discharging hopper, which comprises a rotating outer frame, a hanging plate is coaxially fixed to the bottom of the rotating outer frame, a discharging plate with a spiral structure is fixed inside the rotating outer frame, the angle between the discharging plate and the ground is less than 15°, a hanging shaft is vertically fixed in the middle of the hanging plate, and the spiral inner ring of the discharging plate is fixed to the hanging shaft; a sliding support mechanism is arranged on the inner wall surface of the lower outer cylinder, the sliding support mechanism comprises a plurality of groups of annular sliding sheets made of nylon material, the middle part of the sliding sheet is integrally bent and provided with a bending protrusion that is in sliding contact with the outer wall surface of the rotating outer frame; an auxiliary sliding sheet is arranged on the inner wall of the top of the rotating outer frame of the spiral discharging hopper, the middle part of the sliding sheet is integrally bent and provided with a bending protrusion that is in sliding contact with the shrinking end of the guide hopper.

[0029] A top support frame is fixed on the top cover of the outer cylinder, and a rotary unloading mechanism is arranged in the top support frame. The rotary unloading mechanism includes a driving gear ring rotatably connected to the top of the top support frame and arranged coaxially with the lifting shaft, a connecting ring is coaxially fixed to the top of the driving gear ring, and the connecting ring is rotationally connected to the top of the top support frame through a bearing. The rotary unloading mechanism includes a driving motor fixed to the inner wall of the top support frame, and the motor shaft of the driving motor is connected to the driving gear ring through a gear transmission mechanism; the inner ring of the driving gear ring is connected to the lifting shaft through a sliding key structure whose sliding axis is parallel to the axis of the lifting shaft.

[0030] The weighing mechanism comprises a weighing bracket fixed to the top of the top support frame, a weighing device is fixed on the top of the weighing bracket, and a weighing sensor end of the weighing device is fixedly connected to the top of the lifting shaft.

[0031] like Figure 2 , and a quantitative feeding mechanism, which includes a feeding port fixed to the top side wall of the outer cylinder, the feeding port is connected to a screw feeder, the screw feeder includes a feeding pipe, a spiral feeding paddle is rotatably connected in the feeding pipe, a feeding port is arranged on the side wall of the feeding pipe, and a feeding motor for driving the feeding paddle to rotate is connected to the tail end of the feeding pipe.

[0032] Among them, a limiting sleeve is fixed on the top of the outer cylinder, a pushing plate is coaxially fixed on the lifting shaft, and a return spring is arranged between the pushing plate and the limiting sleeve.

[0033] Wherein, a bag fixing ring is arranged on the outer wall of the bottom of the outer cylinder, and a plurality of bag fixing grooves are arranged in a linear array on the outer wall of the bag fixing ring.

[0034] Wherein, a discharge hopper is fixed on the bottom inner wall of the lower outer cylinder through a first connecting ring. The discharge hopper is a tapered structure, and the flared end of the discharge hopper is fixed to the first connecting ring.

[0035] When in use, in the default state, the entire spiral discharge hopper is lifted upward under the drive of the return spring, so that the weighing device is in a relaxed state, and the data of the weighing device is adjusted to 0; then the material is fed through the quantitative unloading mechanism at the feed port, and the feed port is connected to a material storage hopper. The material is continuously added to the feed pipe from the feed port, and then the material is input into the top of the upper outer cylinder through the rotating paddle of the feed paddle, and then the material enters the entire spiral discharge hopper through the guide hopper. Because the angle between the discharge plate and the ground is low, the material will accumulate on the top of the entire spiral discharge hopper due to friction. At this time, the weight of the material in the spiral discharge hopper will pull the lifting shaft, so that the weighing device obtains the weight of the material. When the material reaches the filling volume of the bag, the unloading of the quantitative unloading mechanism is stopped; then the drive motor is started, and the lifting shaft is driven to rotate through the gear transmission mechanism and the sliding key structure, and the lifting shaft drives the entire spiral discharge hopper to rotate, and the material will move along the spiral direction of the spiral discharge hopper under the action of inertia, and finally discharged into the material bag through the discharge hopper.

[0036] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A quantitative packaging bag filling device, characterized in that: include: The outer cylinder is fixed on the machine base, a discharge end is arranged at the bottom of the outer cylinder, the discharge end is used to connect the material bag, the top of the outer cylinder is a closed structure, and a feed end is arranged on the top side wall of the outer cylinder; The spiral discharging mechanism comprises a spiral discharging hopper, which comprises a rotating outer frame, a hoisting plate is coaxially fixed to the bottom of the rotating outer frame, a discharging plate with a spiral structure is fixed inside the rotating outer frame, the angle between the discharging plate and the ground is less than 15°, a hoisting shaft is vertically fixed in the middle of the hoisting plate, and the spiral inner ring of the discharging plate is fixed to the hoisting shaft; The weighing mechanism includes a weighing device fixed to the top of the outer cylinder, and a weighing sensor end of the weighing device is fixedly connected to the top of the lifting shaft; The rotary unloading mechanism comprises a driving motor fixed to the top of the outer cylinder, a driving gear ring coaxially arranged with the hoisting shaft is rotatably connected to the top of the outer cylinder, the driving gear ring is drivingly connected to the motor shaft of the driving motor, and the inner ring of the driving gear ring is connected to the hoisting shaft through a sliding key structure whose sliding axis is parallel to the axis of the hoisting shaft; And, a quantitative feeding mechanism, the quantitative feeding mechanism includes a feed port fixed to the top side wall of the outer cylinder, the feed port is connected to a screw feeder, the screw feeder includes a feed pipe, a spiral feed paddle is rotatably connected in the feed pipe, a feeding port is arranged on the side wall of the feed pipe, and a feed motor for driving the feed paddle to rotate is connected to the tail end of the feed pipe.

2. A quantitative packaging bag filling device as claimed in claim 1, characterized in that: A sliding support mechanism is arranged on the inner wall surface of the outer cylinder, and the sliding support mechanism comprises a plurality of groups of annular sliding sheets made of nylon material, and a bent protrusion which is in sliding contact with the outer wall surface of the rotating outer frame is arranged in the middle of the sliding sheet.

3. A quantitative packaging bag filling device as claimed in claim 2, characterized in that: A guide hopper is fixed in the middle of the outer cylinder. The guide hopper is a gradually shrinking structure. The expanded end of the guide hopper is in sealing contact with the inner wall of the outer cylinder, and the contracted end of the guide hopper is in sliding contact with the top inner wall of the rotating outer frame.

4. A quantitative packaging bag filling device as claimed in claim 3, characterized in that: The outer cylinder comprises an upper outer cylinder and a lower outer cylinder, the upper outer cylinder and the lower outer cylinder are fixedly connected via a flange structure, a second connecting ring is fixed on the bottom inner wall of the upper outer cylinder, and the guide hopper is fixed on the second connecting ring.

5. A quantitative packaging bag filling device as claimed in claim 3, characterized in that: An auxiliary sliding sheet is arranged on the top of the rotating outer frame, and a bent protrusion which is in sliding contact with the shrinking end of the guide hopper is arranged in the middle of the sliding sheet.

6. A quantitative packaging bag filling device as claimed in claim 1, characterized in that: A top support frame is coaxially fixedly connected to the top of the outer cylinder, a connecting ring is coaxially fixed to the top of the driving gear ring, the connecting ring is rotatably connected to the top of the top support frame via a bearing, a weighing bracket is fixed to the top of the top support frame, and a weighing device is fixed to the top of the weighing bracket; the driving motor is fixed to the inner wall of the top support frame via a bracket.

7. A quantitative packaging bag filling device as claimed in claim 6, characterized in that: A limiting sleeve is fixed on the top of the outer cylinder, a pushing plate is coaxially fixed on the lifting shaft, and a return spring is arranged between the pushing plate and the limiting sleeve.

8. The quantitative packaging bag filling equipment according to claim 1, characterized in that: The outer wall at the bottom of the outer cylinder is provided with a bag fixing ring, and a plurality of bag fixing grooves are provided in a linear array on the outer wall of the bag fixing ring.

9. A quantitative packaging bag filling device as claimed in claim 1, characterized in that: A discharge hopper is fixed on the inner wall of the outer cylinder via a first connecting ring. The discharge hopper is a tapered structure, and the flared end of the discharge hopper is fixed to the first connecting ring.

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