Mouthpiece bag conveying device of mouthpiece bag sealing and filling machine

Abstract

A suction nozzle bag conveying device of a suction nozzle bag sealing and filling machine is characterized by comprising a rack, an intermittent rotary disc conveying unit, a bag body following conveying unit and a bag following control unit.The beneficial effect of the present application over the prior art is that, due to the bag body following conveying unit and the bag following control unit, the suction nozzle bag conveying device can synchronously send the nozzle sleeve to the opening of the upright suction nozzle bag body and the suction nozzle bag body to the sealing device for preheating sealing or hot sealing, and send out the upright suction nozzle bag semi-finished product or finished product after being made, thereby greatly improving the working efficiency of the suction nozzle bag sealing and filling machine.

Description

Technical Field

[0001] This invention relates to a spout bag conveying device for a spout bag sealing and filling machine, and more specifically to a spout bag conveying device for a spout bag sealing and filling machine that can synchronously convey the spout and the packaging bag after the sleeve operation is completed. Background Technology

[0002] Currently, the production of spout pouches is usually completed using a bag-making production line. The spout pouches produced by the bag-making production line are then sent to a packaging machine for filling, and finally sealed with a cap.

[0003] However, this production method is problematic because the finished spout pouches are difficult to sort and stack. The bag production line needs to sort the finished spout pouches, hang them on rods for storage and transport, and then send the rods to the packaging machine. A special bag feeding mechanism for the rods is then used to feed the pouches into the packaging machine. This results in excessive equipment and processing steps, high logistics and production costs, and low work efficiency, making it difficult to meet the needs of large-scale industrial production. Furthermore, the hygiene of the rods is difficult to guarantee during the production, transportation, storage, and transfer of the spout pouches, which in turn makes it difficult to ensure the hygiene of the spout pouches. This negatively impacts the quality of the finished packaged spout pouches (i.e., spout pouches containing materials and sealed with a cap).

[0004] To address the problems of existing technologies, the applicant improved the production method by linking the bag-making production line with the packaging production line, thus resolving the issues of traditional techniques. Furthermore, to enable the packaging bags from the bag-making production line to be quickly fed into the packaging production line, the applicant improved the bag-making equipment, replacing the inverted spout bags used in the traditional bag-making process with upright spout bags, thereby improving work efficiency. In other words, the manufacturing efficiency of upright spout bags is much faster than that of traditional inverted spout bags. Summary of the Invention

[0005] The purpose of this invention is to provide a spout bag conveying device for a spout bag sealing machine. This device can simultaneously deliver the spout and the opening of an upright spout bag to a sealing device for preheating or heat sealing, producing upright spout bags as semi-finished or finished products, which are then discharged. The technical solution adopted is as follows: A spout bag conveying device for a spout bag sealing and filling machine, characterized in that: it includes... The rack provides support and positioning; An intermittent rotary conveyor unit includes a rotary disk that rotates intermittently. The edge of the rotary disk has multiple workstations and multiple nozzle suspension slots are installed on the edge of the rotary disk. Each nozzle suspension slot corresponds to a workstation. Each time the rotary disk rotates intermittently, it drives each nozzle suspension slot to move one workstation (that is, the nozzle suspension slot on each workstation moves from that workstation to the next adjacent workstation). The bag body follows the conveyor unit, which picks up the nozzle bag body and follows the turntable from the bagging station to the heat sealing station / pre-sealing station, and then returns to the bagging station; The bag suction follow control unit controls the bag body to follow the conveyor unit to complete the suction of the bag body at the bagging station, and stops controlling the bag body to follow the conveyor unit at the heat sealing station / pre-sealing station.

[0006] In a preferred embodiment, the intermittent rotary conveyor unit further includes a rotating shaft and a cam divider. The cam divider is mounted on the frame, the rotating shaft is mounted on the cam divider, and the rotating shaft extends upward in a vertical direction. The rotating disk is mounted on the top of the rotating shaft. The cam divider drives the rotating shaft to rotate intermittently. Each rotation drives each material nozzle suspension groove to move from one station to the next adjacent station.

[0007] In a preferred embodiment, the bag-following conveying unit includes a first driving device, a first transmission device, a swingable bushing, a swing rod, and a retractable bag suction device. The swingable bushing is rotatably fitted onto the outside of the rotating shaft. The first driving device is connected to the swingable bushing through the first transmission device and drives the swingable bushing to rotate. The swing rod is installed on the top of the swingable bushing, and the retractable bag suction device is installed on the swing rod in a radially movable manner.

[0008] In a more optimized embodiment, the bag-following conveyor unit further includes a following insert rod, the bottom end of which is fixed to the retractable bag suction device. The bottom surface of the rotating disk of the intermittent turntable conveyor unit has multiple insert rings. At the bag-packing station, the bag suction following control unit drives the following insert rod to move outward along the swing rod and insert a insert ring, and the swing rod of the bag-following conveyor unit rotates with the turntable. At the heat-sealing / pre-sealing station, the bag suction following control unit drives the following insert rod to move inward along the swing rod and disengage from the insert ring. Then, the first drive device drives the swing rod back to the bag-packing station through the first transmission device.

[0009] A better solution is that the swing rod has a groove extending axially, and the insert rod passes through the groove from bottom to top.

[0010] In an even better embodiment, the bag-following conveyor unit further includes a return spring, with the two ends of the return spring connected to a retractable suction bag device and a swing rod, respectively.

[0011] In a preferred embodiment, the suction bag following control unit includes a swing arc-shaped guide rail, a second drive device, and a second transmission device. One end of the swing arc-shaped guide rail is fixed to the frame and can rotate in a horizontal plane. The second drive device is connected to the middle of the swing arc-shaped guide rail through the second transmission device and drives the swing arc-shaped guide rail to swing. The retractable suction bag device is movably mounted on the swing arc-shaped guide rail. Thus, when the swing rod drives the retractable suction bag device to rotate, the retractable suction bag device also moves along the swing arc-shaped guide rail.

[0012] A better solution is that the retractable suction bag device has two rollers at the bottom, and the two rollers respectively make rolling contact with the swinging arc-shaped guide rail.

[0013] A better solution is that when the swing rod drives the retractable suction bag device from the bagging station to the heat-sealing / pre-sealing station, the distance from any point on the swing arc guide rail to the rotating shaft is the same. Before the swing rod drives the retractable suction bag device back from the heat-sealing / pre-sealing station to the bagging station, the second drive device drags the middle of the swing arc guide rail through the second transmission device, forcing the swing arc guide rail to move towards the rotating shaft until the following rod moves inward along the swing rod and disengages from the insert ring. In this way, when the retractable suction bag device moves from the bagging station to the heat-sealing / pre-sealing station, the bag body with the suction nozzle can move synchronously with the nozzle. Before the retractable suction bag device returns from the heat-sealing / pre-sealing station to the bagging station, it disengages from the insert ring along the following rod, so that the swing rod and the retractable suction bag device will not continue to follow the rotating disk. Only then can the first drive device drive the swing rod back to the bagging station through the first transmission device.

[0014] In a better embodiment, the cam divider, the first drive device, the first transmission device, the second drive device, and the second transmission device are driven by servo motors through gear sets, and the first drive device and the second drive device are cams.

[0015] In another embodiment, the suction bag following control unit is a first cylinder mounted on a swing arm, and the piston shaft of the first cylinder is connected to the retractable suction bag device; the first driving device is a second cylinder, which is connected to a swingable bushing via a connecting rod and drives the swingable bushing to rotate. The disadvantages of this embodiment are that it requires a cylinder, resulting in poor precision, low stability, and short service life.

[0016] In the third embodiment, the suction bag following control unit includes a first servo motor, a first screw, and a first nut. The first servo motor is mounted on a swing arm, the first screw is rotatably mounted on the swing arm and one end of the first screw is connected to the output shaft of the first servo motor, and the first nut is sleeved on the first screw and connected to the retractable suction bag device. The first driving device includes a second servo motor, a second screw, and a second nut. The second servo motor is mounted on a frame, the second screw is rotatably mounted on the frame, and the second nut is sleeved on the second screw and connected to a swingable bushing via a connecting rod, thereby driving the swingable bushing to rotate.

[0017] The beneficial effects of this invention compared to the prior art are that, due to the inclusion of a bag-following conveying unit and a suction bag-following control unit, the suction bag conveying device can simultaneously deliver the nozzle to the opening of the upright suction bag body and the suction bag body to the sealing equipment for preheating or heat sealing, and then send out the upright suction bag semi-finished or finished product, greatly improving the working efficiency of the suction bag sealing and filling machine. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention; Figure 2 yes Figure 1 The diagram shows a structural schematic from another angle of the embodiment shown; Figure 3 yes Figure 1 The illustrated embodiment shows a top view of the bag following the conveyor unit at the bagging station; Figure 4 yes Figure 1 The illustrated embodiment shows a top view of the bag following the conveyor unit at the pre-sealing station. Detailed Implementation

[0019] To facilitate observation of the components beneath the rotating disk, Figure 2 The rotating disk is blurred and represented by a dashed line.

[0020] like Figure 1-4 As shown, in one embodiment of this application, the spout bag conveying device of the spout bag sealing machine includes... Frame 1 provides support and positioning; The intermittent rotary conveyor unit 2 includes a rotary disk 201 that rotates intermittently. The rotary disk 201 has four stations on its edge (in the order of processing: inlet station A, bagging station B, pre-sealing station C, and bag outlet station D). The rotary disk 201 has eight spout hanging slots 202 installed on its edge (two spout hanging slots 202 for each station). Each time the rotary disk 201 rotates, it moves each spout hanging slot 202 one station (that is, the spout hanging slot 202 on each station moves from that station to the next adjacent station). The bag body follows the conveyor unit 3, which picks up the nozzle bag body and follows the rotating disk 201 from the bagging station B to the pre-sealing station C, and then returns to the bagging station B; The suction bag following control unit 4 controls the bag body following the conveying unit 3 to complete the suction of the suction bag body at the bagging station B, and stops controlling the bag body following the conveying unit 3 at the pre-sealing station C.

[0021] The intermittent rotary conveyor unit 2 also includes a rotating shaft 203 and a cam divider 204. The cam divider 204 is mounted on the frame 1, and the rotating shaft 203 is mounted on the cam divider 204. The rotating shaft 203 extends upward in the vertical direction, and the rotating disk 201 is mounted on the top of the rotating shaft 203. The cam divider 204 drives the rotating shaft 203 to rotate intermittently. Each rotation drives each material nozzle suspension groove 202 to move from one station to the next adjacent station.

[0022] The bag-following conveying unit 3 includes a first driving device 301, a first transmission device 302, a swingable bushing 303, a swing rod 304, and a retractable suction bag device 305. The swingable bushing 303 is rotatably sleeved on the outside of the rotating shaft 203. The first driving device 301 is connected to the swingable bushing 303 through the first transmission device 302 and drives the swingable bushing 303 to rotate. The swing rod 304 is installed on the top of the swingable bushing 303. The retractable suction bag device 305 is installed on the swing rod 304, which can move radially (in this text, refers to the radial direction of the rotating shaft 203). The retractable suction bag device 305 is a sliding frame that is slidably installed on the bottom surface of the swing rod 304. Two vacuum suction cups (each connected to an external vacuum pump) are installed on the outside of the sliding frame.

[0023] In one alternative embodiment, the bag-following conveying unit 3 further includes a following insert rod 306, the bottom end of which is fixed to a retractable bag suction device 305. The bottom surface of the rotating disk 201 of the intermittent turntable conveying unit 2 has four insert rings 205 (one insert ring 205 is provided on the inner side of each station). At the bag-packing station, the bag suction following control unit 4 drives the following insert rod 306 to move outward along the swing rod 304 and insert a insert ring 205. The swing rod 304 of the bag-following conveying unit 3 then rotates with the rotating disk 201. At the pre-sealing station, the bag suction following control unit 4 drives the following insert rod 306 to move inward along the swing rod 304 and disengage from the insert ring 205. Then, the first driving device 301 drives the swing rod 304 back to the bag-packing station through the first transmission device 302.

[0024] The swing rod 304 has an axially extending groove 3041, through which the insert rod 306 passes from bottom to top.

[0025] In an alternative embodiment, the suction bag following control unit 4 includes a swing arc-shaped guide rail 401, a second drive device 402, and a second transmission device 403. One end of the swing arc-shaped guide rail 401 is fixed to the frame 1 and can rotate in a horizontal plane. The second drive device 402 is connected to the middle of the swing arc-shaped guide rail 401 through the second transmission device 403 and drives the swing arc-shaped guide rail 401 to swing. The bottom end of the retractable suction bag device 305 is provided with two rollers 3051, and the two rollers 3051 respectively roll in contact with the swing arc-shaped guide rail 401. In this way, when the swing rod 304 drives the retractable suction bag device 305 to rotate, the retractable suction bag device 305 also moves along the swing arc-shaped guide rail 401.

[0026] In an alternative embodiment, the bag-following conveying unit 3 further includes a return spring 307, with its two ends connected to the retractable suction bag device 305 and the swing rod 304, respectively. In this way, the return spring 307 ensures that one roller 3051 of the retractable suction bag device 305 (referring to the roller 3051 closer to the swingable bushing 303) remains in rolling contact with the inner sidewall of the swinging arc-shaped guide rail 401. The other roller 3051 serves only a restraining function.

[0027] When the swing rod 304 drives the retractable suction bag device 305 from the bagging station to the pre-sealing station, the distance from any point on the swing arc guide rail 401 to the rotating shaft 203 is the same. Before the swing rod 304 drives the retractable suction bag device 305 back from the pre-sealing station to the bagging station, the second drive device 402 drags the middle part of the swing arc guide rail 401 through the second transmission device 403, forcing the swing arc guide rail 401 to move towards the rotating shaft 203. Therefore, the distance from the swing arc guide rail 401 to the rotating shaft 203 gradually decreases from right to left. The retractable suction bag device 305 moves towards the rotating shaft 203, and finally follows the insertion rod 306 to move inward along the swing rod 304 and disengage from the insertion ring 205. In this way, when the retractable suction bag device 305 moves from the bagging station to the pre-sealing station, it can carry the suction bag body and move synchronously with the nozzle. Before the retractable suction bag device 305 returns from the pre-sealing station to the bagging station, it follows the insertion rod 306 to disengage from the insertion ring 205. Only then will the swing rod 304 and the retractable suction bag device 305 stop moving with the rotating disk 201, and the first drive device 301 can drive the swing rod 304 back to the bagging station through the first transmission device 302.

[0028] The cam divider 204, the first drive device 301, the first transmission device 302, the second drive device 402, and the second transmission device 403 are driven by the servo motor 5 through the gear set 6, respectively.

[0029] The first driving device 301 is a first cam; the first transmission device 302 includes a first transmission rod 3021, a second transmission rod 3022, and a swing ring 3023, the swing ring 3023 having a swing end 30231, the swing ring 3023 being fixed on a swingable bushing 303, and the first cam, the first transmission rod 3021, the second transmission rod 3022, and the swing end 30231 of the swing ring 3023 being connected in sequence; the second driving device 402 is a second cam; the second transmission device 403 includes a third transmission rod 403. 1. The fourth transmission rod 4032, the rotatable rod 4033, the swing shaft 4034, the swing plate 4035, and the fifth transmission rod 4036 are connected in sequence. The swing shaft 4034 is fixed on the frame 1. The rotatable rod 4033 is installed at the bottom of the swing shaft 4034. The swing plate 4035 is installed at the top of the swing shaft 4034. The second cam, the third transmission rod 4031, the fourth transmission rod 4032, and the rotatable rod 4033 are connected in sequence. The swing plate 4035, the fifth transmission rod 4036, and the swing arc guide rail 401 are connected in sequence.

[0030] In another alternative embodiment, the suction bag following control unit 4 is a first cylinder mounted on the swing rod 304, and the piston shaft of the first cylinder is connected to the retractable suction bag device 305; the first drive device 301 is a second cylinder, which is connected to the swingable bushing 303 via a connecting rod and drives the swingable bushing 303 to rotate. The disadvantages of this solution are that it requires a cylinder, resulting in poor precision, low stability, and short service life.

[0031] In a third alternative embodiment, the suction bag following control unit 4 includes a first servo motor, a first screw, and a first nut. The first servo motor is mounted on a swing arm 304, the first screw is rotatably mounted on the swing arm 304 and one end of the first screw is connected to the output shaft of the first servo motor, and the first nut is sleeved on the screw and connected to the retractable suction bag device 305. The first drive device 301 includes a second servo motor, a second screw, and a second nut. The second servo motor is mounted on a frame 1, the second screw is rotatably mounted on the frame 1, the second nut is sleeved on the second screw and the second nut is connected to the swingable bushing 303 via a connecting rod and drives the swingable bushing 303 to rotate.

[0032] The following is combined with Figure 1-4 Let me introduce the work process: Rotating disk 201 rotates intermittently; At the inlet station A, the feeding device feeds the nozzle into the two nozzle suspension slots 202 located at the inlet station A; The rotating disk 201 rotates intermittently, bringing the two material nozzle suspension grooves 202 to the bagging station B. The bag body follows the retractable bag suction device 305 of the conveying unit 3 to extend radially, sucking up the two suction bag bodies sent out by the bag feeding equipment outside the bagging station and completing the bagging upward. The rotating disk 201 rotates intermittently, bringing the two nozzle hanging slots 202 to the pre-sealing station C. The bag body follows the rotating disk 201 with the retractable suction bag device 305 of the conveying unit 3, and the two suction bag bodies are rotated synchronously to the pre-sealing station C. The pre-sealing mechanism 7 seals the two completed bagged nozzles with the suction bag bodies to obtain the suction bag semi-finished product. Then the bag body follows the retractable suction bag device 305 of the conveying unit 3 to release the two suction bag bodies and return to the bagging station B. The rotating disc 201 rotates intermittently, bringing the two nozzle suspension slots 202 to the bag exit station D, and the bag exiting device pushes out the two nozzle bag semi-finished products.

[0033] In this way, the manufacturing and output of semi-finished spout pouches can be continuously completed. Since the output semi-finished spout pouches are in an upright state, the heat-sealing equipment further heat-seales them after output. Once the finished spout pouches are produced, they can be filled and sealed immediately without needing to be rotated 180 degrees like traditional spout pouch making equipment. This reduces a processing step, greatly improves work efficiency, and lowers production costs.

[0034] In one alternative embodiment, the pre-sealing station is replaced with a heat-sealing station, where the heat-sealing equipment directly manufactures the finished spout bags.

[0035] Furthermore, it should be noted that the names of the various parts of the specific embodiments described in this specification may differ. All equivalent or simple variations made to the structure, features, and principles described in this invention are included within the scope of protection of this invention. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this invention or exceed the scope defined in these claims, all of which should fall within the scope of protection of this invention.

Claims

1. A spout bag conveying device for a spout bag sealing and filling machine, characterized in that: include The rack provides support and positioning; An intermittent rotary conveyor unit includes a rotary disc that rotates intermittently. The edge of the rotary disc is provided with multiple workstations and multiple nozzle suspension slots are installed on the edge of the rotary disc. The multiple nozzle suspension slots correspond to the workstations respectively. Each time the rotary disc rotates intermittently, it drives each nozzle suspension slot to move one workstation. The bag body follows the conveyor unit, which picks up the nozzle bag body and follows the turntable from the bagging station to the heat sealing station / pre-sealing station, and then returns to the bagging station; The bag suction follow control unit controls the bag body to follow the conveyor unit to complete the suction of the bag body at the bagging station, and stops controlling the bag body to follow the conveyor unit at the heat sealing station / pre-sealing station. The bag-following conveying unit includes a first driving device, a first transmission device, a swingable bushing, a swing rod, and a retractable bag suction device. The swingable bushing is rotatably sleeved on the outside of the rotating shaft. The first driving device is connected to the swingable bushing through the first transmission device and drives the swingable bushing to rotate. The swing rod is installed on the top of the swingable bushing. The retractable bag suction device is installed on the swing rod and can move radially along the swing rod. The bag-following conveying unit also includes a following insert rod, the bottom end of which is fixed to the retractable bag suction device. The bottom surface of the rotating disk of the intermittent turntable conveying unit has multiple insert rings. At the bag-packing station, the bag suction following control unit drives the following insert rod to move outward along the swing rod and insert a insert ring. The swing rod of the bag-following conveying unit then rotates with the turntable. At the heat-sealing / pre-sealing station, the bag suction following control unit drives the following insert rod to move inward along the swing rod and disengage from the insert ring. Then, the first drive device drives the swing rod back to the bag-packing station through the first transmission device.

2. The spout bag conveying device of the spout bag sealing and filling machine as described in claim 1, characterized in that: The intermittent rotary conveyor unit also includes a rotating shaft and a cam divider. The rotating shaft is mounted on the cam divider and extends upward in a vertical direction. The rotating disk is mounted on the top of the rotating shaft. The cam divider drives the rotating shaft to rotate intermittently. Each rotation drives each material nozzle suspension groove to move from one station to the next adjacent station.

3. The spout bag conveying device of the spout bag sealing and filling machine as described in claim 1, characterized in that: The swing rod has a sliding groove that extends axially, and the insert rod passes through the sliding groove from bottom to top.

4. The spout bag conveying device of the spout bag sealing and filling machine as described in claim 3, characterized in that: The bag-following conveyor unit also includes a return spring, with a retractable suction bag device and a swing rod connected to its two ends respectively.

5. The spout bag conveying device of the spout bag sealing and filling machine as described in claim 1, characterized in that: The suction bag following control unit includes a swing arc-shaped guide rail, a second drive device, and a second transmission device. One end of the swing arc-shaped guide rail is fixed on the frame and can rotate in the horizontal plane. The second drive device is connected to the middle of the swing arc-shaped guide rail through the second transmission device and drives the swing arc-shaped guide rail to swing. The retractable suction bag device can be moved along the swing arc-shaped guide rail and fitted onto it.

6. The spout bag conveying device of the spout bag sealing and filling machine as described in claim 2, characterized in that: The cam divider, the first drive device, the first transmission device, the second drive device, and the second transmission device are driven by servo motors through gear sets, respectively. The first drive device and the second drive device are cams.

7. The spout bag conveying device of the spout bag sealing and filling machine as described in claim 1, characterized in that: The suction bag following control unit is a first cylinder, which is mounted on a swing arm and the piston shaft of the first cylinder is connected to the retractable suction bag device; the first driving device is a second cylinder, which is connected to a swingable bushing through a connecting rod and drives the swingable bushing to rotate.

8. The spout bag conveying device of the spout bag sealing and filling machine as described in claim 1, characterized in that: The bag suction follower control unit includes a first servo motor, a first screw, and a first nut. The first servo motor is mounted on a swing arm, the first screw is rotatably mounted on the swing arm and one end of the first screw is connected to the output shaft of the first servo motor, and the first nut is sleeved on the first screw and connected to the retractable bag suction device. The first drive device includes a second servo motor, a second screw, and a second nut. The second servo motor is mounted on a frame, the second screw is rotatably mounted on the frame, and the second nut is sleeved on the second screw and connected to a swingable bushing via a connecting rod, thereby driving the swingable bushing to rotate.

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