Roller bagging device

Abstract

The invention relates to the technical field of packaging machine equipment; a roller bagging and holding device comprises a bag feeding platform, a bagging roller frame, a roller frame driving piston, a bagging roller mechanism, an edge feeding port, and a V-shaped holding device; the bagging roller mechanism comprises a suction roller, a T-shaped three-way pipe, a negative pressure piston cylinder, a negative pressure piston reset spring, a pull line and a suction roller rotation pre-tightening spring; the invention provides a roller bagging and holding device, which realizes the opening, bagging and holding operations of the bag mouth of the packaging bag at the same time through the suction roller, simplifies the control operation process, and makes it easy to locate the cause of the fault for maintenance during troubleshooting operations, and at the same time, due to the rolling action of the suction roller on the bag mouth of the packaging bag, the material leakage rate is effectively reduced.

Description

Technical field:

[0001] The invention relates to the technical field of packaging machine equipment. Background technology:

[0002] The bagging machine is one of the commonly used equipment in the filling and packaging production process of bag-packed products. Its purpose is to drag the open packaging bag after preparation and put it on the filling feed port.

[0003] Most existing bagging machines use the working principle of mechanical arm clamping or mouth-holding dragging. The clamping mechanical arm has a simple structure and low manufacturing cost, but has a single function. It usually only drags the opened packaging bag to the feeding port, and does not have the function of opening the packaging bag. It is necessary to set an independent packaging bag opener on its front bag feeding device, and after the packaging bag is dragged to the feeding port, a set of holding devices with multiple fixed surfaces are required to fix the packaging bag to cooperate with filling. Therefore, it and its upstream and downstream supporting equipment as a whole have the defects of complex control logic structure, high operation time accuracy requirements, and complex maintenance and troubleshooting processes. Summary of the invention:

[0004] In view of this, it is necessary to design a roller bagging and holding device to implement the opening, bagging and holding operation processes of the packaging bag on a set of equipment, simplify the time accuracy requirements of the operation, and facilitate maintenance and troubleshooting.

[0005] The roller bagging mouth holding device comprises a bag conveying platform, a bagging roller frame, a roller frame driving piston, a bagging roller mechanism, an edge feed port, and a V-shaped mouth holding device; wherein, the bagging roller frame is hinged to the frame through a roller frame connecting rod, a roller frame driving piston is installed between the roller frame connecting rod and the frame, the bagging roller frame is driven to reciprocate by the roller frame driving piston, one end of its stroke is located below the hinge point of the roller frame connecting rod, the bag conveying platform passes through the bagging roller frame at this position, and the other end of its stroke is located on one side of the hinge point of the roller frame connecting rod in the horizontal direction, and the edge feed port passes through the bagging roller frame at this position.

[0006] The bagging roller frame is a hollow frame, in which two bagging roller mechanisms are symmetrically installed on the side facing the roller frame connecting rod and the side facing away from the roller frame connecting rod.

[0007] The bagging roller mechanism includes a suction roller, a T-shaped three-way pipe, a negative pressure piston cylinder, a negative pressure piston return spring, a pulling wire and a suction roller rotation pre-tightening spring; the bagging roller mechanism is described based on the bagging roller frame facing the roller frame connecting rod side when the bag conveying platform passes through the bagging roller frame: there are two suction rollers, which are respectively installed at the symmetrical ends of the T-shaped three-way pipe and are parallel to the bagging roller frame; the asymmetric end of the T-shaped three-way pipe is installed in the negative pressure piston cylinder as a piston rod; the tail end of the negative pressure piston cylinder is installed on the bagging roller frame; the negative pressure piston return spring is sleeved on the outer surface of the asymmetric end of the T-shaped three-way pipe, connecting the negative pressure piston cylinder port and the T-shaped three-way pipe; the suction roller is hollow and has a suction hole facing the bag conveying platform side; there are two suction roller rotation pre-tightening springs, which are respectively installed on the two symmetrical ends of the T-shaped three-way pipe, connecting the suction roller and the T-shaped three-way pipe; there are two pulling wires, one end of which is connected to the suction roller, and the other end is connected to the connection between the bagging roller frame and the negative pressure piston cylinder; the bag conveying platform extends between the two bagging roller mechanisms.

[0008] Mouth slopes conforming to the working surface of the V-shaped mouth gripper are arranged on both sides of the edge feed port. There are two V-shaped mouth grippers, which are symmetrically hingedly installed on both sides of the edge feed port. When the edge feed port passes through the bagging roller frame, the V-shaped mouth gripper passes through the bagging roller frame together with the edge feed port. The edge feed port is located between the two bagging roller mechanisms, and the V-shaped mouth gripper is located inside the bagging roller frame and on both sides of the bagging roller mechanism.

[0009] The V-shaped clamp is provided with a clamp driving piston.

[0010] During operation, a single closed-mouth packaging bag that has been prepared is input from the bag feeding platform, and its bag opening is located between the two bagging roller mechanisms. First, the negative pressure piston cylinder is driven by the negative pressure air source, and the negative pressure air path is guided to the suction roller through the T-shaped three-way, and acts on the bag opening of the packaging bag through the suction hole, so that the bag opening of the packaging bag is adsorbed on the suction roller. At this time, the air inlet path is blocked by the packaging bag, and the negative pressure piston cylinder is forced to move, so that the suction rollers of the two bagging roller mechanisms and the bag openings of the corresponding side packaging bags are separated from each other, so that the bag opening is opened. At the same time, the negative pressure piston reset spring is compressed, the pull line is relaxed, and the suction roller rotation pre-tightening spring drives the suction roller to rotate, so that the bag opening of the packaging bag is rolled up on the suction roller. After that, the roller frame drives the piston to move, and the packaging bag moves with the roller frame and is covered on the edge feeding port. At this time, the suction roller and the edge feeding port are in close contact and clamp the bag opening of the packaging bag, so as to hold the bag opening. Finally, the mouth-holding driving piston drives the V-shaped mouth-holding device to buckle on the side of the edge feeding port to achieve the connection and sealing of the side of the bag mouth of the packaging bag.

[0011] After filling is completed, the mouth-holding driving piston is unloaded first to reset the V-shaped mouth-holding device, and then the negative pressure piston cylinder is unloaded, and the bag mouth roll-up is separated from the suction roller. The friction between the bag mouth and the suction roller is suddenly reduced to less than its weight after filling, so the bag falls under the action of its own weight and separates from the edge feeding port. Finally, the roller frame drives the piston to unload, and the roller frame falls and resets. During the process, the negative pressure piston reset spring drives the negative pressure piston cylinder to reset, and the pull wire is tensioned to drive the suction roller to rotate and reset, completing the preparation for the next bagging operation.

[0012] Preferably, there are three rows of suction holes, which are arranged on the suction roller at intervals of 30 degrees. This design can make the rotation of the suction roller and the movement of the negative pressure piston cylinder smooth, preventing the occurrence of packaging bag falling failures caused by excessive movement.

[0013] Preferably, the bag conveying platform is composed of three bag conveying plates, wherein the middle bag conveying plate passes through between the T-shaped three-way pipes of the two bag-covering roller mechanisms, and the bag conveying plates on both sides pass through both sides of the bag-covering roller mechanisms, and the packaging bags slide along the bag conveying plates to between the bag-covering roller mechanisms.

[0014] Preferably, the holding mouth driving piston and the roller frame driving piston are both negative pressure acting pistons, which share the air source with the negative pressure piston cylinder. Air valves are respectively arranged at the places where the holding mouth driving piston, the roller frame driving piston and the negative pressure piston cylinder are connected to the air source. This structure unifies the power sources of each actuating part and simplifies the energy supply and control structure.

[0015] Furthermore, the air source is a negative pressure dust removal air source attached to the conveying device.

[0016] Preferably, the bagging roller mechanism also includes a suction roller connecting rod, which passes through the T-shaped three-way pipe and connects the two suction rollers symmetrically at both ends, so that the connection is firm and the movements are synchronized.

[0017] The present invention provides a roller bagging and holding device, which realizes the opening, bagging and holding operations of the bag mouth of the packaging bag at the same time through a suction roller, simplifies the control operation process, and makes it easy to locate the cause of the fault for maintenance during troubleshooting operations. At the same time, due to the rolling action of the suction roller on the bag mouth of the packaging bag, the material leakage rate is effectively reduced. Description of the drawings:

[0018] Attached Figure 1 It is a schematic diagram of the overall structure of a specific embodiment of the roller bagging mouth holding device of the present invention;

[0019] Attached Figure 2 It is a schematic diagram of the side structure of the bagging roller mechanism of a specific embodiment of the roller bagging mouth holding device of the present invention;

[0020] Attached Figure 3 It is a schematic diagram of the coordination structure of the bagging roller frame, bagging roller mechanism and bag conveying platform of a specific embodiment of the roller bagging mouth holding device of the present invention;

[0021] Attached Figure 4 It is a schematic diagram of the coordination structure of the bagging roller frame, bagging roller mechanism, edge feeding port and V-shaped bagging device of a specific embodiment of the roller bagging and holding device of the present invention;

[0022] Attached Figure 5 It is a schematic diagram of the air source structure of a specific embodiment of the roller bagging mouth holding device of the present invention.

[0023] In the figure: bag conveying platform 1, bag conveying plate 101, bagging roller frame 2, roller frame connecting rod 201, roller frame driving piston 3, bagging roller mechanism 4, suction roller 401, suction hole 4011, T-shaped three-way pipe 402, negative pressure piston cylinder 403, negative pressure piston return spring 404, pull wire 405, suction roller rotation pre-tightening spring 406, suction roller connecting rod 407, edge feeding port 5, holding mouth slope 501, V-shaped holding mouth device 6, holding mouth driving piston 601, and air valve 7. Specific implementation method:

[0024] The roller bagging mouth holding device comprises a bag conveying platform 1, a bagging roller frame 2, a roller frame driving piston 3, a bagging roller mechanism 4, an edge feed port 5, and a V-shaped mouth holding device 6; wherein, the bagging roller frame 2 is hinged to the frame through a roller frame connecting rod 201, a roller frame driving piston 3 is installed between the roller frame connecting rod 201 and the frame, the bagging roller frame 2 is driven to reciprocate by the roller frame driving piston 3, one end of its stroke is located below the hinge point of the roller frame connecting rod 201, the bag conveying platform 1 passes through the bagging roller frame 2 at this position, and the other end of its stroke is located on one side of the hinge point of the roller frame connecting rod 201 in the horizontal direction, and the edge feed port 5 passes through the bagging roller frame 2 at this position.

[0025] The bagging roller frame 2 is a hollow frame, and two bagging roller mechanisms are symmetrically installed on the side facing the roller frame connecting rod 201 and the side facing away from the roller frame connecting rod 201.

[0026] The bagging roller mechanism 4 includes a suction roller 401, a T-shaped three-way pipe 402, a negative pressure piston cylinder 403, a negative pressure piston return spring 404, a pull line 405 and a suction roller rotation preload spring 406; the description is based on the bagging roller mechanism 4 on the side of the bagging roller frame 2 facing the roller frame connecting rod 201 when the bag conveying platform 1 passes through the bagging roller frame 2: there are two suction rollers 401, which are respectively installed at the symmetrical ends of the T-shaped three-way pipe 402 and are parallel to the bagging roller frame 2; the asymmetrical end of the T-shaped three-way pipe 402 is installed in the negative pressure piston cylinder 403 as a piston rod; the tail end of the negative pressure piston cylinder 403 is installed on the bagging roller frame 2, and the negative pressure piston cylinder 403 is installed on the bagging roller frame 2. The pressure piston return spring 404 is sleeved on the outer surface of the asymmetric end of the T-shaped three-way pipe 402, connecting the port of the negative pressure piston cylinder 403 and the T-shaped three-way pipe 402. The suction roller 401 is hollow and has a suction hole 4011 facing the bag conveying platform 1. There are two suction roller rotation pre-tightening springs 406, which are respectively installed on the two symmetrical ends of the T-shaped three-way pipe 402 to connect the suction roller 401 and the T-shaped three-way pipe 402. There are two pulling wires 405, one end of which is connected to the suction roller 401 respectively, and the other end is connected to the connection between the bagging roller frame 2 and the negative pressure piston cylinder 403; the bag conveying platform 1 extends between the two bagging roller mechanisms 4.

[0027] Mouth slopes 501 conforming to the working surface of the V-shaped mouth holder 6 are arranged on both sides of the edge feed port 5. There are two V-shaped mouth holders 6, which are symmetrically hingedly installed on both sides of the edge feed port 5. When the edge feed port 5 passes through the bagging roller frame 2, the V-shaped mouth holder 6 and the edge feed port 5 pass through the bagging roller frame 2 together. The edge feed port 5 is located between the two bagging roller mechanisms 4, and the V-shaped mouth holder 6 is located inside the bagging roller frame 2 and on both sides of the bagging roller mechanism 4.

[0028] The V-shaped clamp 6 is provided with a clamp driving piston 601 .

[0029] The holding mouth driving piston 601 and the roller frame driving piston 3 are both negative pressure pistons, and share the negative pressure dust removal air source attached to the feeding device with the negative pressure piston cylinder 403. Air valves 7 are respectively provided at the connection points of the holding mouth driving piston 601, the roller frame driving piston 3 and the negative pressure piston cylinder 403 with the air source.

[0030] There are three rows of suction holes 4011, which are arranged on the suction roller 401 at intervals of 30 degrees. This design can make the rotation of the suction roller 401 and the movement of the negative pressure piston cylinder 403 smooth, preventing the occurrence of packaging bag falling failures caused by excessive movement.

[0031] The bag conveying platform 1 is composed of three bag conveying plates 101, wherein the middle bag conveying plate 101 passes through between the T-shaped three-way pipes 402 of the two bagging roller mechanisms 4, and the bag conveying plates 101 on both sides pass through the two sides of the bagging roller mechanisms 4, and the packaging bags slide along the bag conveying plates 101 to between the bagging roller mechanisms 4.

[0032] The bagging roller mechanism 4 also includes a suction roller connecting rod 407, which passes through the T-shaped three-way pipe 402 and connects the two suction rollers 401 at both ends symmetrically, so that the connection is firm and the movements are synchronized.

[0033] During operation, a prepared single closed-mouth packaging bag is input from the bag conveying platform 1, and its bag opening is located between the two bagging roller mechanisms 4. First, the negative pressure piston cylinder 403 is driven by the negative pressure air source, and the negative pressure air path is guided to the suction roller 401 through the T-shaped three-way, and acts on the bag opening of the packaging bag through the suction hole 4011, so that the bag opening of the packaging bag is adsorbed on the suction roller 401. At this time, the air inlet path is blocked by the packaging bag, and the negative pressure piston cylinder 403 is forced to move, so that the suction rollers 401 of the two bagging roller mechanisms 4 and the bag openings of the corresponding side packaging bags are separated from each other, so that the packaging bag is opened. At the same time, the negative pressure piston reset spring 404 is compressed, the pull line 405 is relaxed, and the suction roller rotation preload spring 406 drives the suction roller 401 to rotate, so that the bag opening of the packaging bag is rolled up on the suction roller 401. Afterwards, the roller frame drives the piston 3 to move, and the packaging bag moves with the roller frame and is put on the edge feeding port 5. At this time, the suction roller 401 is in close contact with the edge feeding port 5 to clamp the bag mouth roll-up of the packaging bag, so as to achieve the bag mouth holding. Finally, the mouth holding driving piston 601 drives the V-shaped mouth holding device 6 to buckle on the side of the edge feeding port 5, so as to achieve the connection and sealing of the side of the bag mouth of the packaging bag.

[0034] After filling is completed, the mouth-holding driving piston 601 is unloaded first to reset the V-shaped mouth-holding device 6, and then the negative pressure piston cylinder 403 is unloaded, and the bag mouth of the packaging bag is separated from the suction roller 401. The friction between the bag mouth of the packaging bag and the suction roller 401 is suddenly reduced to less than its weight after filling, so the packaging bag falls under the action of its own weight and separates from the edge feeding port 5. Finally, the roller frame driving piston 3 is unloaded, and the roller frame falls and resets. During the process, the negative pressure piston reset spring 404 drives the negative pressure piston cylinder 403 to reset, and the pull wire 405 is tensioned to drive the suction roller 401 to rotate and reset, completing the preparation for the next bagging operation.

Claims

1. Roller bagging device, characterized in that: It includes a bag conveying platform, a bagging roller frame, a roller frame driving piston, a bagging roller mechanism, an edge feeding port, and a V-shaped mouth holder; Among them, the bagging roller frame is hinged to the frame through the roller frame connecting rod, and a roller frame driving piston is installed between the roller frame connecting rod and the frame. The bagging roller frame is driven to reciprocate by the roller frame driving piston, and one end of its stroke is located below the hinge point of the roller frame connecting rod, and the bag conveying platform passes through the bagging roller frame at this position, and the other end of its stroke is located on one side of the hinge point of the roller frame connecting rod in the horizontal direction, and the edge feeding port passes through the bagging roller frame at this position; The bagging roller frame is a hollow frame, and two bagging roller mechanisms are symmetrically installed inside the frame on the side facing the roller frame connecting rod and the side facing away from the roller frame connecting rod; The bagging roller mechanism includes a suction roller, a T-shaped three-way pipe, a negative pressure piston cylinder, a negative pressure piston return spring, a pulling wire and a suction roller rotation pre-tightening spring; the bagging roller mechanism is described based on the bagging roller frame facing the roller frame connecting rod side when the bag conveying platform passes through the bagging roller frame: there are two suction rollers, which are respectively installed at the symmetrical ends of the T-shaped three-way pipe and are parallel to the bagging roller frame; the asymmetric end of the T-shaped three-way pipe is installed in the negative pressure piston cylinder as a piston rod; the tail end of the negative pressure piston cylinder is installed on the bagging roller frame; the negative pressure piston return spring is sleeved on the outer surface of the asymmetric end of the T-shaped three-way pipe, connecting the negative pressure piston cylinder port and the T-shaped three-way pipe; the suction roller is hollow and has a suction hole facing the bag conveying platform side; there are two suction roller rotation pre-tightening springs, which are respectively installed on the two symmetrical ends of the T-shaped three-way pipe, connecting the suction roller and the T-shaped three-way pipe; there are two pulling wires, one end of which is connected to the suction roller, and the other end is connected to the connection between the bagging roller frame and the negative pressure piston cylinder; the bag conveying platform extends between the two bagging roller mechanisms; Both sides of the edge feeding port are provided with holding slopes conforming to the working surface of the V-shaped holding device. There are two V-shaped holding devices, which are symmetrically hingedly installed on both sides of the edge feeding port. When the edge feeding port passes through the bagging roller frame, the V-shaped holding device passes through the bagging roller frame together with the edge feeding port. The edge feeding port is located between the two bagging roller mechanisms, and the V-shaped holding device is located inside the bagging roller frame and on both sides of the bagging roller mechanism. The V-shaped clamp is provided with a clamp driving piston; The bagging roller mechanism also includes a suction roller connecting rod, which passes through the T-shaped three-way pipe and connects two suction rollers at both ends symmetrically.

2. The roller bagging device according to claim 1, characterized in that: The suction holes are arranged in three rows at intervals of 30 degrees on the suction roller.

3. The roller bagging device according to claim 1, characterized in that: The bag conveying platform is composed of three bag conveying plates, wherein the middle bag conveying plate passes through between the T-shaped three-way pipes of the two bagging roller mechanisms, and the bag conveying plates on both sides pass through the two sides of the bagging roller mechanisms.

4. The roller bagging device according to claim 1, characterized in that: The holding mouth driving piston and the roller frame driving piston are both negative pressure action pistons, and share an air source with the negative pressure piston cylinder. Air valves are respectively arranged at the places where the holding mouth driving piston, the roller frame driving piston and the negative pressure piston cylinder are connected to the air source.

5. The roller bagging device according to claim 4, characterized in that: The air source is a negative pressure dust removal air source attached to the feeding device.

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