A ton bag filling and sealing structure for a packaging machine

Abstract

The utility model relates to the technical field of packaging machines, and specifically to a ton bag filling and sealing structure of a packaging machine, comprising a filling barrel arranged on a main frame of the packaging machine for filling ton bags, and a bag mouth clamping clamp arranged on the periphery of the filling barrel for clamping the bag mouth of the ton bag on the outer circle of the filling barrel; wherein an inflatable sealing ring is arranged on the outer circle of the filling barrel, and the bag mouth clamping clamp is correspondingly arranged on the periphery of the inflatable sealing ring. The utility model solves the problem of leakage of fine powder that may occur during the process of feeding and blanking ton bags, and can avoid the adverse effects of leakage of fine powder on the surrounding environment.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machines, in particular to a ton bag filling and sealing structure of a packaging machine. Background Art

[0002] At present, the ton bag packaging machines on the market are mainly semi-automatic ton bag packaging machines. During operation, manual bag picking, bag opening and bag hanging are required in advance. After the bags are hung on the packaging machine, the packaging machine will automatically add quantitative materials. After the adding is completed, the filled ton bag will be transferred to the conveyor and then sent to the next workstation for bag opening closing.

[0003] In response to the above problems, our company has developed a fully automatic packaging machine for solid fluids and applied for a patent. The fully automatic packaging machine for solid fluids can realize fully automatic operations such as bag taking, bag opening, bagging, bag clamping, weighing, loading, sealing, and dust removal. At present, the invention patents related to fully automatic packaging machines for solid fluids that have been authorized include: an invention patent for a composite weighing and packaging method for a fully automatic packaging machine for solid fluids with an authorization announcement number of CN116534316B, and an invention patent for a fully automatic packaging machine for solid fluids and an automatic bagging and packaging method with an authorization announcement number of CN 116424652 B.

[0004] However, the above patent still has the following aspects that deserve further improvement. The main manifestation is that the bagging clamping mechanism in the fully automatic packaging machine uses a set of semicircular clamping claws on the left and right to press the bag mouth onto the blanking mouth of the ton bag; however, due to the certain processing error of the semicircular clamping claws, it is difficult to make the bag mouth and the blanking mouth (filling barrel) fit perfectly during the actual clamping operation of the bag mouth, which may cause the leakage of fine powder during the blanking process, thereby affecting the surrounding environment. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a ton bag filling and sealing structure for a packaging machine, which aims to solve the problem of fine powder leakage that may occur during the ton bag filling and blanking process, and avoid the adverse effects of fine powder leakage on the surrounding environment. The specific technical solution is as follows:

[0006] A ton bag filling and sealing structure of a packaging machine comprises a filling barrel arranged on a main frame of the packaging machine for filling ton bags, and a bag mouth clamping clamp arranged on the periphery of the filling barrel for clamping the bag mouth of the ton bag on the outer circle of the filling barrel; wherein an inflatable sealing ring is arranged on the outer circle of the filling barrel, and the bag mouth clamping clamp is correspondingly arranged on the periphery of the inflatable sealing ring.

[0007] Preferably, an annular groove is provided on the outer circumference of the filling barrel, and the inflatable sealing ring is sleeved on the annular groove on the outer circumference of the filling barrel.

[0008] Preferably, the inflatable sealing ring is an annular rubber inflatable sealing ring, an inflatable hose is led out from the annular rubber inflatable sealing ring, and the inflatable hose is connected to the pneumatic control system of the packaging machine.

[0009] Preferably, the lower outer ring of the annular rubber inflatable sealing ring is in the shape of an outer cone.

[0010] In the utility model, the bag opening clamp comprises a pair of Huff rings which are respectively arranged on two sides of the outer circle of the filling barrel, and the pair of Huff rings are correspondingly fixed on the piston rods of a pair of cylinders.

[0011] In the utility model, the cylinder is a double-shaft cylinder, and the half ring is installed at the front end of a pair of piston rods of the double-shaft cylinder.

[0012] In the utility model, the front ends of a pair of piston rods of the dual-axis cylinder are commonly connected to a mounting connecting plate, a U bracket is fixed on the mounting connecting plate, and the back of the half ring is fixed on the U bracket.

[0013] Preferably, a rubber layer for enhancing the clamping and sealing performance of the bag opening is provided on the inner circular surface of the half ring.

[0014] In the utility model, the filling cylinder is a lifting type filling cylinder.

[0015] As a further improvement of the utility model, a dust self-cleaning component for regularly cleaning dust on the surface of the inflatable sealing ring is also provided on the bag mouth clamping clamp, and the dust self-cleaning component includes a pair of hollow Huff rings, and the pair of hollow Huff rings are correspondingly fixed on the upper end faces or lower end faces of a pair of U-brackets and are coaxial with the pair of Huff rings, and an annular suction gap connected to the hollow inner cavity of the hollow Huff ring is circumferentially opened on the inner circular surface of the hollow Huff ring, and the hollow inner cavity of the hollow Huff ring is connected to the dust collection device through a negative pressure pipeline.

[0016] Preferably, the inner radius of the hollow Hough ring is slightly larger than the inner radius of the Hough ring.

[0017] In the utility model, the packaging machine is a fully automatic ton bag packaging machine.

[0018] During operation, without bagging, the automatic packaging machine automatically covers the bag opening of the ton bag on the lifting filling barrel, drives the double-axis cylinder to move, so that the pair of half rings of the bag opening clamp are moved forward to the outer circle close to the bag opening, and at the same time, the pneumatic control system of the automatic packaging machine inflates the inflatable sealing ring on the lifting filling barrel. The inflatable sealing ring expands after inflation, thereby sealing and fixing the bag opening of the ton bag between the half ring and the lifting filling barrel.

[0019] To prevent dust accumulation on the inflatable seal ring after filling, the dust accumulation self-cleaning component can be turned on, and the lifting filling barrel can be turned on to make several up and down reciprocating movements. Under the action of negative pressure, the annular suction gap of the hollow half ring generates negative pressure airflow, thereby sucking away the dust accumulated on the inflatable seal ring. The dust accumulation self-cleaning can be performed at a certain frequency as needed.

[0020] The beneficial effects of the utility model are:

[0021] First, the utility model provides a ton bag filling sealing structure for a packaging machine, which improves the clamping and sealing performance of the ton bag after bagging by arranging an inflatable sealing ring on the filling barrel, thereby solving the problem of leakage of fine powder that may occur during the ton bag feeding and blanking process, and avoiding the adverse effects of the leakage of fine powder on the surrounding environment.

[0022] Secondly, the utility model provides a ton bag filling and sealing structure for a packaging machine, in which a rubber layer is arranged on the inner circular surface of the half ring of the bag mouth clamp, thereby completely realizing the soft clamping of the ton bag mouth, which is beneficial to protecting the ton bag from damage and further improving the clamping and sealing performance of the ton bag after bagging. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is one of the schematic diagrams of the ton bag filling and sealing structure of a packaging machine of the utility model (the bag opening clamp is in a disengaged state);

[0024] Figure 2 This is one of the schematic diagrams of a ton bag filling and sealing structure of a packaging machine of the utility model (the bag opening clamp is in a clamping state).

[0025] In the figure: 1. main frame, 2. ton bag (bag opening), 3. filling barrel, 4. bag opening clamp, 5. inflatable sealing ring, 6. annular groove, 7. inflatable hose, 8. outer cone, 9. half ring, 10. cylinder, 11. piston rod, 12. installation connecting plate, 13. U bracket, 14. rubber layer, 15. dust accumulation self-cleaning component, 16. hollow half ring, 17. annular suction gap, 18. negative pressure pipeline. DETAILED DESCRIPTION

[0026] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0027] like Figures 1 to 2The figure shows an embodiment of a ton bag filling and sealing structure of a packaging machine of the utility model, comprising a filling barrel 3 for filling ton bags 2 arranged on a main frame 1 of the packaging machine, and a bag mouth clamping clamp 4 arranged on the periphery of the filling barrel 3 for clamping the bag mouth of the ton bag 2 on the outer circle of the filling barrel 3; wherein, an inflatable sealing ring 5 is arranged on the outer circle of the filling barrel 3, and the bag mouth clamping clamp 4 is correspondingly arranged on the periphery of the inflatable sealing ring 5.

[0028] Preferably, an annular groove 6 is formed on the outer circumference of the filling barrel 3 , and the inflatable sealing ring 5 is sleeved on the annular groove 6 on the outer circumference of the filling barrel 3 .

[0029] Preferably, the inflatable sealing ring 5 is an annular rubber inflatable sealing ring, and an inflatable hose 7 is led out from the annular rubber inflatable sealing ring, and the inflatable hose 7 is connected to the pneumatic control system of the packaging machine.

[0030] Preferably, the lower outer ring of the annular rubber inflatable seal ring 5 is shaped as an outer cone 8 .

[0031] In this embodiment, the bag opening clamp 4 includes a pair of half rings 9 disposed on both sides of the outer circle of the filling barrel 3, and the pair of half rings 9 are correspondingly fixed on the piston rods 11 of a pair of cylinders 10.

[0032] In this embodiment, the cylinder 10 is a double-shaft cylinder, and the half ring 9 is installed at the front end of a pair of piston rods 11 of the double-shaft cylinder 10 .

[0033] In this embodiment, the front ends of a pair of piston rods 11 of the dual-axis cylinder 10 are commonly connected to a mounting connecting plate 12 , a U bracket 13 is fixed on the mounting connecting plate 12 , and the back of the half ring 9 is fixed on the U bracket 13 .

[0034] Preferably, a rubber layer 14 for enhancing the clamping and sealing performance of the bag opening is provided on the inner circumferential surface of the half ring 9 .

[0035] In this embodiment, the filling cylinder 3 is a lifting filling cylinder.

[0036] As a further improvement of the present embodiment, a dust self-cleaning component 15 for regularly cleaning dust on the surface of the inflatable sealing ring 5 is also provided on the bag mouth clamping clamp 4, and the dust self-cleaning component 15 includes a pair of hollow Huff rings 16, and the pair of hollow Huff rings 16 are correspondingly fixed on the upper end faces or lower end faces of a pair of U brackets 13 and are coaxial with the pair of Huff rings 9, and an annular suction gap 17 connected to the hollow inner cavity of the hollow Huff ring 16 is circumferentially opened on the inner circular surface of the hollow Huff ring 16, and the hollow inner cavity of the hollow Huff ring 16 is connected to the dust collection device through a negative pressure pipeline 18.

[0037] Preferably, the inner radius of the hollow Hough ring 16 is slightly larger than the inner radius of the Hough ring 9 .

[0038] In this embodiment, the packaging machine is a fully automatic ton bag packaging machine.

[0039] During operation, without bagging, the automatic packaging machine automatically covers the bag opening of the ton bag 2 on the lifting filling barrel 3, drives the double-axis cylinder 10 to move, so that a pair of half rings 9 of the bag opening clamp 4 move forward to the outer circle close to the bag opening, and at the same time, the pneumatic control system of the automatic packaging machine inflates the inflatable sealing ring 5 on the lifting filling barrel 3. The inflatable sealing ring 5 expands after inflation, so that the bag opening of the ton bag 2 is sealed and fixed between the half ring 9 and the lifting filling barrel 3.

[0040] In order to prevent dust accumulation on the inflatable sealing ring 5 after feeding, the dust accumulation self-cleaning component 15 can be opened, and the lifting filling barrel 3 can be opened to make several up and down reciprocating movements. Under the action of negative pressure, the annular suction gap 17 of the hollow half ring 16 generates negative pressure airflow, thereby sucking away the dust accumulation on the inflatable sealing ring 5. The dust accumulation self-cleaning can be performed at a certain frequency as needed.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A bulk bag filling and sealing structure for a packaging machine, characterized in that: It comprises a filling barrel arranged on the main frame of the packaging machine for filling ton bags, and a bag mouth clamping clamp arranged on the periphery of the filling barrel for clamping the bag mouth of the ton bag on the outer circle of the filling barrel; wherein an inflatable sealing ring is arranged on the outer circle of the filling barrel, and the bag mouth clamping clamp is correspondingly arranged on the periphery of the inflatable sealing ring.

2. A bulk bag filling and sealing structure for a packaging machine according to claim 1, characterized in that: An annular groove is provided on the outer circle of the filling barrel, and the inflatable sealing ring is sleeved on the annular groove on the outer circle of the filling barrel.

3. The ton bag filling and sealing structure of a packaging machine according to claim 1, characterized in that: The inflatable sealing ring is an annular rubber inflatable sealing ring, an inflatable hose is led out from the annular rubber inflatable sealing ring, and the inflatable hose is connected to the pneumatic control system of the packaging machine.

4. The ton bag filling and sealing structure of a packaging machine according to claim 1, characterized in that: The bag opening clamp comprises a pair of Huff rings which are respectively arranged on two sides of the outer circle of the filling barrel, and the pair of Huff rings are correspondingly fixed on the piston rods of a pair of cylinders.

5. The ton bag filling and sealing structure of a packaging machine according to claim 4, characterized in that: The cylinder is a double-shaft cylinder, and the Huff ring is installed at the front end of a pair of piston rods of the double-shaft cylinder.

6. A bulk bag filling and sealing structure for a packaging machine according to claim 5, characterized in that: The front ends of a pair of piston rods of the dual-axis cylinder are commonly connected to a mounting connecting plate, a U bracket is fixed on the mounting connecting plate, and the back of the half ring is fixed on the U bracket.

7. A bulk bag filling and sealing structure for a packaging machine according to claim 6, characterized in that: A rubber layer for enhancing the clamping and sealing performance of the bag opening is arranged on the inner circular surface of the half ring.

8. The ton bag filling and sealing structure of a packaging machine according to claim 7, characterized in that: The filling cylinder is a lifting type filling cylinder.

9. A bulk bag filling and sealing structure for a packaging machine according to claim 8, characterized in that: A dust self-cleaning component for regularly cleaning dust on the surface of the inflatable sealing ring is also provided on the bag mouth clamp, and the dust self-cleaning component includes a pair of hollow Huff rings, and the pair of hollow Huff rings are correspondingly fixed on the upper end faces or lower end faces of a pair of U brackets and are coaxial with the pair of Huff rings, and an annular suction gap connected to the hollow inner cavity of the hollow Huff ring is circumferentially opened on the inner circular surface of the hollow Huff ring, and the hollow inner cavity of the hollow Huff ring is connected to the dust collection device through a negative pressure pipeline.

10. The ton bag filling and sealing structure of a packaging machine according to claim 1, characterized in that: The packaging machine is a fully automatic ton bag packaging machine.

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