Air bag opening and sealing device

Abstract

The utility model provides an air bag opening sealing device which comprises a bag cylinder, a material filling hole is formed in the axial direction of the bag cylinder, one end of the material filling hole is a feeding end, the other end of the material filling hole is a discharging end, a flange protruding outwards is arranged at the feeding end of the bag cylinder, a protruding lug is arranged on the flange, a restraining pipe is arranged at the discharging end of the bag cylinder in a sleeved mode, and the restraining pipe is connected with the bag cylinder in a sleeved mode. A connecting plate connected with the restraining pipe is connected to the protruding lugs, a fixing ring is arranged at the end, facing the restraining pipe, of the flange in an extending mode, an air pipe is arranged on the outer circumferential wall of the fixing ring, an air passing hole communicated with the air pipe is formed in the end, facing the discharging end, of the fixing ring, and the bag barrel is sleeved with a rubber expansion pipe located on the inner side of the restraining pipe. The two ends of the rubber expansion pipe are fixed through hose clamps, and an inflation cavity communicated with the air passing holes is formed between the rubber expansion pipe and the bag barrel. The bag opening can be prevented from leaking dust, so that the quality of a working environment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to an air bag support bag sealing device. Background Art

[0002] The bag clamping mechanism of the existing packaging equipment adopts rigid clamping, and there is inevitably a gap between the packaging bag mouth and the clamping device, and dust cannot be avoided from leaking, resulting in a poor working environment and affecting the health of workers. Utility Model Content

[0003] Based on the above problems, the purpose of the utility model is to provide an air bag support and sealing device which can prevent dust leakage from the bag opening and improve the quality of the working environment.

[0004] In view of the above problems, the following technical solutions are provided: an air bag support bag sealing device comprises a bag tube, a filling hole is opened in the axial direction of the bag tube, one end of the filling hole is a feeding end, and the other end is a discharging end, a flange protruding outward is provided at the feeding end of the bag tube, a lug is provided on the flange, a restraining tube is sleeved at the discharging end of the bag tube, the inner hole of the restraining tube is in a bucket shape with a larger upper part and a smaller lower part, a connecting plate connected to the restraining tube is connected to the lug, a fixing ring is provided on the flange extending toward one end of the restraining tube, and the fixing ring An air pipe is provided on the outer circumferential wall, and an air hole connected with the air pipe is opened at one end of the fixing ring facing the discharge end; a rubber expansion tube located on the inner side of the constraint tube is sleeved on the outside of the bag tube, one end of the rubber expansion tube is sleeved on the fixing ring, and the other end is sleeved on the feed end; both ends of the rubber expansion tube are fixed by throat clamps, and an inflation cavity connected with the air hole is formed between the rubber expansion tube and the bag tube, and a bagging channel is formed between the rubber expansion tube and the constraint tube; a limiting ring abutting against the rubber expansion tube is convexly provided on the outer circumferential wall of the discharge end.

[0005] In the above structure, the air pipe is connected to the air supply device through a connecting pipe, and a solenoid valve can be installed on the connecting pipe to control the air intake or exhaust of the air pipe. After the bag mouth of the packaging bag is set outside the discharge end to the bagging channel, the air pipe is controlled by the solenoid valve to take in air. After the gas enters the air pipe, it enters the inflation cavity through the air hole. The rubber expansion tube is inflated by the gas, and the packaging bag is fully opened. The bag mouth is tightly abutted against the inner wall of the constraint tube through the rubber expansion tube. The material enters the packaging bag through the filling hole. The dust raised is sealed in the packaging bag without gaps because the bag mouth is inflated by the rubber expansion tube and cooperates with the inner wall of the constraint tube and the outer wall of the bag tube. The dust is completely sealed in the packaging bag, thereby preventing the dust from causing damage to the health of the operator. The utility model can reduce dust pollution indoors and greatly improve the working environment. When a packaging bag is filled to a set weight, the solenoid valve is switched, the gas in the inflation chamber is released through the air pipe, the rubber expansion tube retracts, and the bag mouth can leave the bagging channel to facilitate the bagging and filling of the next packaging bag. By setting a fixed ring, it is convenient to inflate the inflation chamber, thereby improving the reliability of the utility model. By setting a constraint tube, it is convenient to cooperate with the rubber expansion tube to achieve clamping and sealing of the bag mouth, thereby improving the reliability of the utility model. Since the air inlet end is arranged close to the feed end and the constraint tube is at the discharge end, the rubber expansion tube fits more closely with the inner mouth of the bucket-shaped constraint tube after expansion after air intake, thereby further improving the sealing between the rubber expansion tube and the constraint tube. By setting a limiting ring, the installation of the rubber expansion tube is convenient, and it can play a certain limiting and sealing role on the rubber expansion tube, thereby improving the reliability of the utility model.

[0006] The utility model is further configured that an angle seat is provided on the outer circumferential wall of the restraining tube, a hanging ear is provided on one end of the lug facing the restraining tube, and both ends of the connecting plate are respectively connected to the angle seat and the hanging ear by bolts.

[0007] In the above structure, the angle seats and the hanging ears are provided to facilitate the disassembly, assembly and fixation of the two ends of the connecting plate, thereby improving the convenience of assembly of the utility model.

[0008] The utility model is further configured that a sliding hole is provided on the angle seat, and a fixing hole is provided on the connecting plate opposite to the sliding hole and connected thereto by means of bolts and nuts.

[0009] In the above structure, the sliding hole is provided to facilitate adjustment of the restraining tube relative to the axial direction of the bag tube, and thus can be adjusted according to packaging bags of different height specifications, thereby expanding the application scope of the utility model.

[0010] The utility model is further configured that two groups of connecting plates are symmetrically arranged in the axial direction of the fixing ring.

[0011] The above structure can improve the stability of the restraining pipe, thereby improving the structural strength of the utility model.

[0012] The utility model is further configured that the flange is provided with connecting holes, and a plurality of the connecting holes are evenly distributed in the circumferential direction relative to the flange.

[0013] In the above structure, the connection holes are provided to facilitate the installation of the utility model on the filling station of the packaging equipment, thereby improving the convenience of assembly of the utility model.

[0014] The utility model is further configured that two air pipes are symmetrically arranged relative to the axial direction of the bag tube.

[0015] The above structure can improve the air intake and air exhaust of the inflation cavity of the utility model, thereby improving the bag-holding efficiency of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic structural diagram of the utility model from the side.

[0018] Figure 3 It is a structural schematic diagram of the main view of the utility model.

[0019] Figure 4 It is a cross-sectional structural schematic diagram of the utility model.

[0020] Figure 5 It is a structural schematic diagram of the bag tube in the utility model.

[0021] Figure 6 It is a side structural schematic diagram of the bag tube in the utility model.

[0022] Figure 7 It is a structural schematic diagram of the restraining tube in the utility model.

[0023] Meaning of the numbers in the figure: 1-bag tube; 11-filling hole; 111-feeding end; 112-discharging end; 12-flange; 121-lug; 2-restraint tube; 3-connecting plate; 122-fixing ring; 13-trachea; 14-air hole; 4-rubber expansion tube; 5-throat clamp; 41-inflating chamber; 6-bagging channel; 21-angle seat; 211-sliding hole; 31-fixing hole; 123-hanging ear; 124-connecting hole; 15-limiting ring. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] like Figures 1 to 7 The air bag support and sealing device shown in the figure comprises a bag tube 1, a filling hole 11 is opened in the axial direction of the bag tube 1, one end of the filling hole 11 is a feeding end 111, and the other end is a discharging end 112, a flange 12 protruding outward is provided at the feeding end 111 of the bag tube 1, and a lug 121 is provided on the flange 12, and a restraining tube 2 is sleeved at the discharging end 112 of the bag tube 1, the inner hole of the restraining tube 2 is a bucket shape with a larger upper part and a smaller lower part, and a connecting plate 3 connected to the restraining tube 2 is connected to the lug 121, and a fixing ring 122 is provided on the flange 12 extending toward one end of the restraining tube 2, and the outer circumferential wall of the fixing ring 122 An air pipe 13 is provided on it, and an air hole 14 connected to the air pipe 13 is opened at one end of the fixing ring 122 facing the discharge end 112. The outer part of the bag tube 1 is sleeved with a rubber expansion tube 4 located on the inner side of the constraint tube 2. One end of the rubber expansion tube 4 is sleeved on the fixing ring 122, and the other end is sleeved on the feed end 111. Both ends of the rubber expansion tube 4 are fixed by a throat clamp 5. An inflation cavity 41 connected to the air hole 14 is formed between the rubber expansion tube 4 and the bag tube 1, and a bagging channel 6 is formed between the rubber expansion tube 4 and the constraint tube 2. A limiting ring 15 is protruded on the outer circumferential wall of the discharge end 112 and abuts against the rubber expansion tube 4.

[0027] In the above structure, the air pipe 13 is connected to the air supply device through a connecting pipe, and a solenoid valve can be installed on the connecting pipe to control the air intake or exhaust of the air pipe 13. After the bag mouth of the packaging bag is set outside the discharge end 112 to the bagging channel 6, the air pipe 13 is controlled by the solenoid valve to take in air. After the gas enters the air pipe 13, it enters the inflation chamber 41 through the air hole 14. The rubber expansion tube 4 is inflated by the gas, and the packaging bag is fully opened. The bag mouth is tightly abutted against the inner wall of the restraint tube 2 through the rubber expansion tube 4. The material enters the packaging bag through the filling hole 11. The dust raised is sealed by the expansion of the rubber expansion tube 4 and the inner wall of the restraint tube 2 and the outer wall of the bag tube 1. There is no gap, and the dust is completely sealed in the packaging bag, thereby preventing the dust from causing damage to the health of the operator. The utility model can reduce dust pollution indoors and greatly improve the working environment. When a packaging bag is filled to a set weight, the solenoid valve is switched, the gas in the inflation chamber 41 is released through the air pipe 13, the rubber expansion tube 4 is retracted, and the bag mouth can leave the bagging channel 6, so as to facilitate the bagging and filling of the next packaging bag. By setting the fixing ring 122, it is convenient to inflate the inflation chamber 41, thereby improving the reliability of the utility model. By setting the constraint tube 2, it is convenient to cooperate with the rubber expansion tube 4 to achieve the clamping and sealing of the bag mouth, thereby improving the reliability of the utility model. Since the air inlet end is arranged near the feed end 111, and the constraint tube 2 is at the discharge end 112, after the air intake, the rubber expansion tube 4 is more closely fitted with the inner mouth of the bucket-shaped constraint tube 2 after expansion, thereby further improving the sealing between the rubber expansion tube 4 and the constraint tube 2. By setting the limiting ring 15, it is convenient to install the rubber expansion tube 4, and it can play a certain limiting and sealing role on the rubber expansion tube 4, thereby improving the reliability of the utility model.

[0028] In this embodiment, an angle seat 21 is provided on the outer circumferential wall of the restraining tube 2, and a hanging ear 123 is provided on one end of the lug 121 facing the restraining tube 2. Both ends of the connecting plate 3 are connected to the angle seat 21 and the hanging ear 123 respectively by bolts.

[0029] In the above structure, the angle seats 21 and the hanging ears 123 are provided to facilitate the disassembly, assembly and fixation of the two ends of the connecting plate 3, thereby improving the convenience of assembly of the utility model.

[0030] In this embodiment, a sliding hole 211 is provided on the angle seat 21 , and a fixing hole 31 is provided on the connecting plate 3 opposite to the sliding hole 211 and connected thereto by means of bolts and nuts.

[0031] In the above structure, the slide hole 211 is provided to facilitate adjustment of the restraining tube 2 relative to the axial direction of the bag tube 1, and further to adjust the restraining tube 2 according to packaging bags of different height specifications, thereby expanding the application scope of the utility model.

[0032] In this embodiment, two groups of the connecting plates 3 are symmetrically arranged in the axial direction with respect to the fixing ring 122 .

[0033] The above structure can improve the stability of the restraining pipe 2, thereby improving the structural strength of the utility model.

[0034] In this embodiment, the flange 12 is provided with connection holes 124 , and a plurality of the connection holes 124 are evenly distributed in the circumferential direction of the flange 12 .

[0035] In the above structure, the connection hole 124 is provided to facilitate the installation of the utility model on the filling station of the packaging equipment, thereby improving the convenience of assembly of the utility model.

[0036] In this embodiment, two air pipes 13 are symmetrically arranged relative to the axial direction of the bag tube 1 .

[0037] The above structure can improve the air intake and air exhaust of the inflation chamber 41 of the utility model, thereby improving the bag-holding efficiency of the utility model.

[0038] 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 principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the protection scope of the present invention.

Claims

1. An airbag bag sealing device, comprising a bag tube, wherein a filling hole is provided in the axial direction of the bag tube, one end of the filling hole is a feeding end, and the other end is a discharging end, characterized in that: The feeding end of the bag tube is provided with a flange protruding outward, the flange is provided with a lug, and the discharging end of the bag tube is sleeved with a restraining tube, the inner hole of the restraining tube is in the shape of a bucket with a larger upper part and a smaller lower part, and the lug is connected to a connecting plate connected to the restraining tube, and the flange is extended toward one end of the restraining tube. A fixing ring is provided on the outer circumferential wall of the fixing ring toward the discharging end, and an air pipe is provided, and an air hole connected to the air pipe is opened at the end of the fixing ring facing the discharging end, and the bag tube is sleeved with a rubber expansion tube located on the inner side of the restraining tube, one end of the rubber expansion tube is sleeved on the fixing ring, and the other end is sleeved on the feeding end, and both ends of the rubber expansion tube are fixed by a throat clamp, and an inflation cavity connected to the air hole is formed between the rubber expansion tube and the bag tube, and a bagging channel is formed between the rubber expansion tube and the restraining tube, and a limiting ring is protruding from the outer circumferential wall of the discharging end and abuts against the rubber expansion tube.

2. The air bag sealing device according to claim 1, characterized in that: An angle seat is arranged on the outer circumferential wall of the restraining tube, a hanging ear is arranged on one end of the lug facing the restraining tube, and two ends of the connecting plate are respectively connected with the angle seat and the hanging ear by bolts.

3. The air bag sealing device according to claim 2, characterized in that: The angle seat is provided with a sliding hole, and the connecting plate is provided with a fixing hole corresponding to the sliding hole and connected with the sliding hole by means of bolts and nuts.

4. The air bag expansion bag sealing device according to claim 2, characterized in that: The connecting plates are symmetrically arranged in two groups relative to the axial direction of the fixing ring.

5. The air bag expansion bag sealing device according to claim 1, characterized in that: The flange is provided with connecting holes, and a plurality of connecting holes are evenly distributed in the circumferential direction of the flange.

6. The air bag expansion bag sealing device according to claim 1, characterized in that: Two air pipes are symmetrically arranged relative to the axial direction of the bag tube.

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