Automatic bag sealing apparatus for material packaging and its conveying control method

Abstract

The application discloses an automatic conveying and sealing bag device for material packaging and a conveying control method thereof, relates to the technical field of packaging and sealing bag, and comprises a top plate, a first plate member and a second plate member which are slidably installed at the bottom of the top plate through a driving component, a tightening component is installed between the first plate member and the second plate member, when the driving component drives the first plate member and the second plate member to relatively aggregate, the tightening component can stretch and tighten the side of the top of the packaging bag, a rolling component is installed on the second plate member, and a plastic component is installed at the bottom of the first plate member and the second plate member. According to the setting mode of the first plate member and the second plate member, when the driving component drives the first plate member and the second plate member to relatively aggregate, the tightening component can stretch the top of the packaging bag, so that the top of the packaging bag is closed and aligned, then the rolling component rolls and seals the self-sealing strip on the top of the packaging bag, so as to guarantee the sealing performance of the closed and locked top of the packaging bag.

Description

Technical Field

[0001] This invention relates to the field of packaging and sealing technology, and in particular to an automatic conveying and sealing device for material packaging and its conveying control method. Background Technology

[0002] In food production, the food products are first produced and then packaged in self-sealing bags, which are bags with self-sealing strips for storage.

[0003] When packaging products using packaging bags, a conveyor disc is used to transport the bags. The conveyor disc has clamping arms arranged in a circular array. As the conveyor disc moves the clamping arms to different workstations for different operations, such as bag feeding, opening, filling, sealing, and discharging, a conveyor line is set up at the filling station to feed the product into the packaging bag. When the conveyor disc, through the clamping arms, transports the packaging bag to the sealing station, the top of the bag moves between two sealing clamps. The two sealing clamps squeeze and close the self-sealing strip at the top of the bag. Depending on the product packaging requirements, a heat-sealing strip can be selectively clamped between the two sealing clamps to heat-seal the portion of the bag above the self-sealing strip.

[0004] However, when the self-sealing strip closes, the protruding part of the male rail is pressed into the groove of the female rail. Conventional self-sealing strips, on the other hand, slide from one end along the strip. When the two sealing plates directly press the self-sealing strip together, misalignment between the protruding part of the male rail and the groove of the female rail can easily occur. This direct pressure on the seal can lead to misalignment, damage, and failure to close the self-sealing strip. Furthermore, when the packaging bag is conveyed to the sealing station by the conveyor disc and clamping arm, some air remains inside due to the opening and the product being stored. Although a desiccant packet is added during product loading to reduce the impact of this air, the air inside the bag can cause bulging after sealing. This not only occupies storage space but also, due to pressure, can cause the sealing end of the bag to open. Therefore, an automatic conveying and sealing device and its conveying control method for material packaging are designed to solve or alleviate these problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic conveying and sealing device for material packaging and a conveying control method thereof, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic conveying and sealing bag device for material packaging, comprising: roof; The first plate, the second plate, and the driving component are slidably mounted on the bottom of the top plate via the driving component, and the end of the second plate has a protrusion relative to the first plate. A tensioning component is installed between a first plate and a second plate. When the driving component drives the first plate and the second plate to move relative to each other, the tensioning component stretches and tightens the side of the top of the packaging bag. A rolling component is mounted on a second plate and cooperates with a first plate to roll and seal the self-sealing strip at the top of the packaging bag. A molding component is installed at the bottom of a first plate and a second plate. The first plate and the second plate move relative to each other, causing the molding component to flexibly squeeze and degas the packaging bag. The loading amount of the packaging bag is detected by the deformation of the flexible structure on the molding component, and the packaging bags are sorted and discharged according to the deformation of the flexible structure.

[0007] Preferably, the tensioning component includes: The pressure block has a storage groove on the top of the first plate and the second plate on opposite sides. The pressure block is slidably disposed inside the storage groove. A vertical and smooth arc strip is connected to the side of the pressure block facing the outside of the storage groove. A guide rod is inclined and fixedly connected to the inside of the storage groove. The outer wall of the guide rod is slidably inserted and sleeved with the pressure block. When the pressure block is squeezed, it slides inclinedly into the inside of the storage groove along the trajectory of the guide rod. A spring is slidably sleeved on the outside of the guide rod, and the spring acts on the pressure block with an elastic restoring compressive force.

[0008] Preferably, the rolling component includes: A connecting bracket is provided, wherein a slot is provided at the bottom of the second plate, and the connecting bracket is slidably disposed inside the slot; A pressing roller is rotatably mounted on a connecting bracket, and the axis of the pressing roller is set in a vertical position. A linear motor is fixedly installed on the back of the second plate. The linear motor is used to drive the pressing roller to move back and forth in the slot.

[0009] Preferably, the rolling component further includes: The transmission frame has a guide portion formed at the bottom of the second plate by the slotting action. The transmission frame is slidably sleeved on the outside of the guide portion. One side of the transmission frame is fixedly installed on one side of the connecting bracket, and the other side of the transmission frame is drivenly installed on the output platform of the linear motor. A support roller is provided, and an installation chamber is provided between the transmission frame and the connecting bracket. The support roller is rotatably installed inside the installation chamber, and the outer wall of the support roller is in contact with the guide part to support and guide the movement of the pressing roller.

[0010] Preferably, the molding component includes: An integrated bracket and a first flexible plate, wherein the first flexible plate is mounted on the bottom of the second plate via the integrated bracket; The second flexible plate is fixedly installed at the bottom of the first plate. The first and second plates move together, so that the first and second flexible plates can flexibly squeeze and exhaust air on both sides of the packaging bag. A photosensitive patch is arranged in a vertical array and fixedly embedded in a first flexible plate and a second flexible plate. The photosensitive patch collects the curvature of the first flexible plate and the second flexible plate, and the packaging bags are sorted and arranged according to the first flexible plate and the second flexible plate.

[0011] Preferably, the integrated support includes: An open frame, one end of which is fixedly installed on the protrusion of the second plate, the open frame is C-shaped, and triangular blocks are welded and fixedly connected to the bends of the open frame; The base plate has its ends fixedly connected to the open frame, and the first flexible plate is fixedly installed on the top of the base plate. The gap between the first flexible plate and the second plate forms a packaging bag conveying channel.

[0012] Preferably, the driving component includes: The mounting housing is fixedly installed on the top of the top plate; A bidirectional lead screw is rotatably mounted inside the mounting housing, and the bidirectional lead screw is arranged perpendicularly and alternately with the first plate and the second plate. A servo motor is fixedly mounted on the end of the mounting housing, and the output end of the servo motor is connected to a bidirectional lead screw drive. A connecting seat is installed on the top of the first plate and the second plate respectively, and the connecting seat is slidably disposed inside the mounting housing; A connecting component is mounted on a connecting seat, and the connecting seat is threadedly connected to a bidirectional lead screw via the connecting component.

[0013] Preferably, the connecting component includes: A threaded sleeve is threaded onto the outside of a bidirectional lead screw, and the threaded sleeve is located inside a connecting seat; A positioning block is fixedly connected to the side of the threaded sleeve. A positioning groove is provided on the side of the inner wall of the connecting seat. The positioning block is slidably engaged in the inside of the positioning groove, and the bottom of the positioning block is in contact with the bottom of the inner wall of the positioning groove. A limiting rod is vertically fixedly connected to the inside of the positioning groove. A limiting groove is opened at the bottom of the positioning block, and the limiting rod slides and engages with the inner cavity of the limiting groove in the vertical direction.

[0014] Preferably, the driving component further includes: The fastener is fixedly connected to the bottom of the connecting seat, and the fastener is fixedly connected to the top of the first plate and the second plate respectively. The top plate has a sliding hole, and the outer wall of the fastener is slidably connected to the inner cavity of the sliding hole. The mounting rails are symmetrically and fixedly connected to the bottom of the top plate, and the mounting rails are arranged parallel to the bidirectional lead screws; The mounting base is fixedly connected to the top of the first plate and the second plate respectively, and the mounting base is slidably engaged with the outside of the mounting track.

[0015] Another object of the present invention is to provide a transfer control method for material packaging, comprising the following specific steps: When the packaging bag is conveyed between the first plate and the second plate, and the first plate and the second plate move relative to each other, the first flexible plate and the second flexible plate move relative to each other, so that the first flexible plate and the second flexible plate are clamped to the outside of the packaging bag, allowing some of the air inside the packaging bag to be discharged. The bending degree of the first and second flexible plates is identified by the photosensitive patch, so that the bending degree of the first and second flexible plates matches the content of the product stored inside the packaging bag. The packaging bags filled with products are classified according to the bending degree of the first and second flexible plates, including empty bags, insufficient quantity bags, normal bags and overloaded bags, and are discharged according to the classification of the packaging bags. When the curvature of the first flexible plate and the second flexible plate is zero, the packaging bag between the first flexible plate and the second flexible plate is classified as an empty bag and does not need to be sealed before discharge. When the curvature of the first flexible plate and the second flexible plate is less than the normal minimum curvature threshold, and the first flexible plate and the second flexible plate are curved, the packaging bag between the first flexible plate and the second flexible plate is classified as a shortage category and does not need to be sealed for discharge. When the curvature of the first flexible plate and the second flexible plate is between the normal minimum curvature threshold and the maximum curvature threshold, the packaging bag between the first flexible plate and the second flexible plate is classified as normal and sealed and discharged using a rolling component. When the curvature of the first flexible plate and the second flexible plate exceeds the normal maximum curvature threshold, the packaging bag between the first flexible plate and the second flexible plate is classified as overloaded and sealed and discharged using a rolling component.

[0016] The technical effects and advantages of this invention are as follows: The present invention utilizes the arrangement of the first plate and the second plate. When the driving component drives the first plate and the second plate to move in relative convergence, the tensioning component can stretch the top of the packaging bag, thereby closing and aligning the top of the packaging bag. Then, the rolling component rolls and seals the self-sealing strip at the top of the packaging bag to ensure the sealing performance of the closed and locked top of the packaging bag. This invention utilizes the cooperative use of a molding component. When the first and second plates move relative to each other, the molding component can squeeze the packaging bag to expel excess gas from the bag, preventing the bag from bulging due to remaining gas after sealing. The side of the molding component facing the bag conveying disc is open, thus not affecting the conveying of the bag by the clamping arms on the conveying disc. Furthermore, when the first and second flexible plates on the molding component squeeze the bag to expel gas, they undergo bending deformation. Based on the bending deformation of the first and second flexible plates, the amount of product stored inside the packaging bag can be detected, and the packaging bag can be classified and conveyed accordingly. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the open frame of the present invention; Figure 3 This is a schematic diagram of the internal structure of the top plate side surface of the present invention; Figure 4 This is a top view of the internal structure of the first plate part of the present invention; Figure 5 This is a schematic diagram of the internal structure of the side of the second plate part of the present invention; Figure 6 This is a schematic diagram of the overall structure of the transmission frame of the present invention; Figure 7 This is an exploded view of the connecting seat and threaded sleeve of the present invention; Figure 8 This is a flowchart illustrating the logic for classifying and judging packaging bags according to the present invention.

[0018] In the attached diagram: 1. Top plate; 2. First plate; 3. Second plate; 41. Mounting housing; 42. Servo motor; 43. Two-way lead screw; 44. Connecting seat; 451. Threaded sleeve; 452. Positioning block; 453. Positioning groove; 454. Limiting rod; 46. Fixing component; 5. Tensioning component; 51. Pressure block; 52. Storage groove; 53. Guide rod; 54. Spring; 6. Rolling component; 61. Connecting bracket; 62. Pressing roller; 63. Linear motor; 64. Transmission frame; 65. Mounting chamber; 66. Support roller; 7. Molding component; 71. Opening frame; 72. Base plate; 73. First flexible plate; 74. Second flexible plate; 75. Photosensitive patch. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides, for example Figures 1-8The automatic conveying and sealing device for material packaging shown includes a top plate 1, a first plate 2, a second plate 3, a drive unit, a tensioning unit 5, a rolling unit 6, and a shaping unit 7. The first plate 2 and the second plate 3 are slidably mounted on the bottom of the top plate 1 via the drive unit. The top plate 1 is mounted on the packaging machine via a bracket and is located at the sealing station of the conveyor disc of the packaging machine. The conveyor disc rotates, allowing the clamping arms on the conveyor disc to clamp the top of the packaging bag and convey it between the first plate 2 and the second plate 3 for sealing the bag with a self-sealing strip. The bag is sealed by a drive component that can drive the first plate 2 and the second plate 3 to move synchronously towards each other or move away from each other. The end of the second plate 3 has a protrusion relative to the first plate 2. A tensioning component 5 is installed between the first plate 2 and the second plate 3. When the drive component drives the first plate 2 and the second plate 3 to move towards each other, the tensioning component 5 stretches and tightens the top edge of the bag to ensure the neatness of the top of the bag opening. A rolling component 6 is installed on the second plate 3, and the rolling component 6 cooperates with the first plate 2 to... The self-sealing strip at the top of the packaging bag is rolled and sealed to ensure the integrity of the seal. Direct compression of the self-sealing strip prevents partial misalignment and incomplete sealing. Depending on the packaging requirements, a heat-sealing strip can be added between the first plate 2 and the second plate 3. This heat-sealing strip, when energized, heat-presses the packaging opening. The heat-sealing strip is located between the rolling component 6 and the tensioning component 5. Heat-sealing is a mature existing technology and will not be discussed in detail here. The shaping component 7 is installed at the bottom of the first plate 2 and the second plate 3. The relative movement of the first plate 2 and the second plate 3 allows the shaping component 7 to flexibly compress and degas the packaging bag, preventing bulging after sealing and reducing the risk of damage due to bulging. The deformation of the flexible structure on the shaping component 7 detects the bag's load and classifies the bags accordingly, ensuring the quality of the packaged products and reducing the influx of defective products into the market, such as empty bags, insufficient quantities, and overloaded bags.

[0021] Furthermore, the tensioning component 5 includes a pressure block 51, a guide rod 53, and a spring 54. A storage groove 52 is provided on the top of each opposite side of the first plate 2 and the second plate 3. The pressure block 51 is slidably disposed inside the storage groove 52, meaning there is a pressure block 51 between the first plate 2 and the second plate 3, and the pressure blocks 51 on each plate correspond to each other. A vertical and smooth arc strip is connected to the side of the pressure block 51 facing the outside of the storage groove 52. The guide rod 53 is obliquely and fixedly connected inside the storage groove 52. The outer wall of the guide rod 53 is slidably inserted and sleeved with the pressure block 51. When the pressure block 51 is compressed, it slides obliquely into the storage groove 52 along the trajectory of the guide rod 53. When the top of the packaging bag is located between the first plate 2 and the second plate 3... The first plate 2 and the second plate 3 move in a relatively convergent motion until the pressure block 51 on the opposite side of the first plate 2 and the second plate 3 presses against both sides of the top of the packaging bag. When the first plate 2 and the second plate 3 move in a convergent motion again, the pressure block 51 will be squeezed and move along the trajectory of the guide rod 53. The smooth arc strip on one side of the pressure block 51 can reduce the friction between the pressure block 51 and the packaging bag, thereby ensuring that the packaging bag is less damaged due to tension when the opening of the packaging bag is stretched. The spring 54 is slidably sleeved on the outside of the guide rod 53. The spring 54 acts on the pressure block 51 with an elastic reset squeezing force. When the first plate 2 and the second plate 3 move in opposite directions, the spring 54 can squeeze and push the pressure block 51 to move and reset.

[0022] Furthermore, the rolling component 6 includes a connecting bracket 61, a pressing roller 62, a linear motor 63, a transmission frame 64, and a support roller 66. A slot is formed at the bottom of the second plate 3. The connecting bracket 61 is slidably disposed inside the slot. The pressing roller 62 is rotatably mounted on the connecting bracket 61, with its axis vertically aligned. The linear motor 63 is fixedly mounted on the back of the second plate 3, driving the pressing roller 62 to move back and forth within the slot. The bottom of the second plate 3 forms a guide section due to the slot. The transmission frame 64 is slidably sleeved onto the outside of the guide section. One side of the transmission frame 64 is fixedly mounted on one side of the connecting bracket 61, and the other side of the transmission frame 64 is driven onto the output platform of the linear motor 63. Figure 5 As shown, when the linear motor 63 drives the pressing roller 62 to move back and forth in the slot through the transmission frame 64 and the connecting bracket 61, the pressing roller 62 can cooperate with the first plate 2 to roll and close the self-sealing strip on the packaging bag. An installation chamber 65 is provided between the transmission frame 64 and the connecting bracket 61. The support roller 66 is rotatably installed inside the installation chamber 65. The outer wall of the support roller 66 is in contact with the guide part to support and guide the movement of the pressing roller 62. The support roller 66 can improve the stability of the pressing roller 62 in the slot.

[0023] Specifically, the molding component 7 includes an integrated bracket, a first flexible plate 73, a second flexible plate 74, and a photosensitive patch 75. The first flexible plate 73 is mounted on the bottom of the second plate 3 via the integrated bracket, and there is a certain channel gap between the first flexible plate 73 and the second plate 3, so that the clamping arm on the conveying disc can convey the packaging bag to the bottom of the top plate 1 through the channel gap. The second flexible plate 74 is fixedly installed on the bottom of the first plate 2. The first plate 2 and the second plate 3 move together, so that the first flexible plate 73 and the second flexible plate 74 can flexibly squeeze and vent air from both sides of the packaging bag. The first flexible plate 73 and the second flexible plate 74 are both made of flexible rubber material. The first flexible plate 73 and the second flexible plate 74 can be collectively referred to as flexible components. The flexible components can be bent under compression, so when the first plate 2 and the second plate 3 move relative to each other, the first flexible plate 73 and the second flexible plate 74 can relatively aggregate and squeeze the packaging bag. The packaging bag is designed to allow excess air to escape, reducing the likelihood of bulging. Photosensitive patches 75 are vertically arrayed and fixedly embedded in the first flexible plate 73 and the second flexible plate 74. The photosensitive patches 75 collect the curvature of the first and second flexible plates 73 and 74, and the packaging bags are sorted and arranged according to the first and second flexible plates 73 and 74. An identifier or camera is installed on the packaging frame to identify the positions of multiple photosensitive patches 75 on the sides of the first and second flexible plates 73 and 74. The photosensitive patches 75 utilize the principle of fiber optic grating sensors. When the flexible component bends, the spacing between adjacent photosensitive patches 75 changes with the deformation. The identifier receives the reflected light signals from photosensitive patches 75 at different positions, analyzes the offset, and calculates the curvature of the flexible component by combining the initial position parameters of the photosensitive patches 75. This allows the determination of the curvature of the first and second flexible plates 73 and 74.

[0024] Furthermore, the integrated support includes an open frame 71 and a base plate 72. One end of the open frame 71 is fixedly installed on the protrusion of the second plate 3. The open frame 71 is C-shaped, thereby avoiding obstruction of the clamping arm on the conveying disc at the connection between the second plate 3 and the first flexible plate 73. Triangular blocks are welded and fixedly connected to the bends of the open frame 71. Under the action of the triangular blocks, the strength of the bends of the open frame 71 can be guaranteed. The end of the base plate 72 is fixedly connected to the open frame 71. The first flexible plate 73 is fixedly installed on the top of the base plate 72. The gap between the first flexible plate 73 and the second plate 3 forms a packaging bag conveying channel.

[0025] Furthermore, the driving components include a mounting housing 41, a bidirectional lead screw 43, a servo motor 42, connecting seats 44, and connecting components. The mounting housing 41 is fixedly installed on the top of the top plate 1, and is installed using bolts and fixing blocks. The mounting housing 41 can be disassembled by removing the bolts. The bidirectional lead screw 43 is rotatably installed inside the mounting housing 41. The bidirectional lead screw 43 is perpendicularly staggered with the first plate 2 and the second plate 3. The servo motor 42 is fixedly installed at the end of the mounting housing 41, and the output end of the servo motor 42 is connected to the bidirectional lead screw 43 for transmission. The connecting seats 44 are respectively installed on the top of the first plate 2 and the second plate 3, and are slidably disposed inside the mounting housing 41. The connecting components are installed on the connecting seats 44, and the connecting seats 44 are threadedly connected to the bidirectional lead screw 43 through the connecting components. When the servo motor 42 drives the bidirectional lead screw 43 to rotate, the bidirectional lead screw 43 can drive the two connecting seats 44 to move synchronously relative to or away from each other through the connecting components, thereby causing the two connecting seats 44 to drive the first plate 2 and the second plate 3 to move synchronously relative to or away from each other.

[0026] Furthermore, the connecting components include a threaded sleeve 451, a positioning block 452, and a limiting rod 454. The threaded sleeve 451 is threaded onto the outside of the bidirectional lead screw 43 and is located inside the connecting seat 44. The positioning block 452 is fixedly connected to the side of the threaded sleeve 451. A positioning groove 453 is provided on the side of the inner wall of the connecting seat 44. The positioning block 452 is slidably engaged inside the positioning groove 453, and the bottom of the positioning block 452 is in contact with the bottom of the inner wall of the positioning groove 453, thus limiting the movement. The rod 454 is vertically fixed inside the positioning groove 453. A limiting groove is formed at the bottom of the positioning block 452. The limiting rod 454 slides and engages with the inner cavity of the limiting groove in the vertical direction. Under the action of the positioning block 452 and the limiting rod 454, the stability of the threaded sleeve 451 installed inside the connecting seat 44 is ensured, keeping the threaded sleeve 451 and the connecting seat 44 in a relatively stationary state. Therefore, when the bidirectional lead screw 43 rotates, the connecting seat 44 can be driven to move through the threaded sleeve 451. Figure 7 As shown, the top of the connecting seat 44 is open, so when the mounting housing 41 is disassembled, the mounting housing 41 can be separated from the connecting seat 44 by the threaded sleeve 451 driven by the two-way lead screw 43, thereby improving the convenience of maintenance of the internal components of the mounting housing 41.

[0027] Specifically, the drive component also includes a fixing member 46, a mounting rail, and a mounting base. The fixing member 46 is fixedly connected to the bottom of the connecting base 44. The fixing member 46 is also fixedly connected to the top of the first plate 2 and the second plate 3 respectively. The top of the top plate 1 has a sliding hole. The outer wall of the fixing member 46 is slidably connected to the inner cavity of the sliding hole. The mounting rail is symmetrically fixedly connected to the bottom of the top plate 1. The mounting rail is parallel to the bidirectional lead screw 43. The mounting base is fixedly connected to the top of the first plate 2 and the second plate 3 respectively. The mounting base is slidably engaged with the outside of the mounting rail. The mounting rail and the mounting base can ensure the stability of the horizontal sliding connection between the first plate 2 and the second plate 3 at the bottom of the top plate 1.

[0028] Another object of the present invention is to provide a transfer control method for material packaging, comprising the following specific steps: When the packaging bag is conveyed between the first plate 2 and the second plate 3, and the first plate 2 and the second plate 3 move relative to each other, the first flexible plate 73 and the second flexible plate 74 move relative to each other, so that the first flexible plate 73 and the second flexible plate 74 are clamped to the outside of the packaging bag, allowing some of the air inside the packaging bag to be discharged. The bending degree of the first flexible plate 73 and the second flexible plate 74 is identified by the photosensitive patch 75, so that the bending degree of the first flexible plate 73 and the second flexible plate 74 matches the content of the product stored inside the packaging bag. The packaging bags filled with products are classified according to the bending degree of the first flexible plate 73 and the second flexible plate 74, including empty bags, bags with insufficient quantity, normal bags and overloaded bags. The packaging bags are then sorted and discharged according to their classification. That is, after the sealed packaging bags are sorted, the conveyor disc divides the packaging bags into three discharge areas through the clamping arm for discharge. Area 1 is the empty bag area, which is used to discharge empty bags. Area 2 is the qualified area, which is used to discharge normal bags. Area 3 is the defective area, which is used to discharge bags with insufficient quantity and overloaded bags. When the curvature of the first flexible plate 73 and the second flexible plate 74 is zero, the packaging bag between the first flexible plate 73 and the second flexible plate 74 is classified as an empty bag and does not need to be sealed before discharge. When the curvature of the first flexible plate 73 and the second flexible plate 74 is less than the normal minimum curvature threshold, and the first flexible plate 73 and the second flexible plate 74 are curved, the packaging bag between the first flexible plate 73 and the second flexible plate 74 is classified as a shortage category and does not need to be sealed for discharge, so that the product can be manually added to the packaging bag later. The minimum curvature threshold and the maximum curvature threshold are the curvature range obtained by using the first flexible plate 73 and the second flexible plate 74 to perform clamping experiments on multiple groups of packaging bags when the packaging bag is filled with a normal amount of product, recording the curvature of the first flexible plate 73 and the second flexible plate 74, and removing outliers and a maximum and a minimum value. The maximum and minimum values ​​of the curvature range are the minimum curvature threshold and the maximum curvature threshold. When the curvature of the first flexible plate 73 and the second flexible plate 74 is between the normal minimum curvature threshold and the maximum curvature threshold, the packaging bag between the first flexible plate 73 and the second flexible plate 74 is classified as normal and sealed and discharged using the rolling component 6. When the curvature of the first flexible plate 73 and the second flexible plate 74 exceeds the normal maximum curvature threshold, the packaging bag between the first flexible plate 73 and the second flexible plate 74 is classified as overloaded and sealed and discharged using the rolling component 6. This prevents the product inside the packaging bag from flowing directly out when the packaging bag falls due to excessive product inside.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic conveying and sealing bagging device for material packaging, characterized in that: include: Top plate (1); The first plate (2), the second plate (3), and the driving component are slidably mounted on the bottom of the top plate (1) by the driving component, and the end of the second plate (3) has a protrusion relative to the first plate (2). The tensioning component (5) is installed between the first plate (2) and the second plate (3). When the driving component drives the first plate (2) and the second plate (3) to move relative to each other, the tensioning component (5) stretches and tightens the side of the top of the packaging bag. Rolling component (6), the rolling component (6) is installed on the second plate (3), the rolling component (6) cooperates with the first plate (2) to roll and seal the self-sealing strip at the top of the packaging bag; A molding component (7) is installed at the bottom of a first plate (2) and a second plate (3). The first plate (2) and the second plate (3) move relative to each other, so that the molding component (7) can flexibly squeeze and exhaust the packaging bag. The loading amount of the packaging bag is detected by the deformation of the flexible structure on the molding component (7), and the packaging bag is classified and discharged according to the deformation of the flexible structure.

2. The automatic conveying and sealing bagging equipment for material packaging according to claim 1, characterized in that: The tensioning component (5) includes: The pressure block (51) has a storage groove (52) on the top of the opposite side of the first plate (2) and the second plate (3). The pressure block (51) is slidably disposed inside the storage groove (52). A vertical and smooth arc strip is connected to the side of the pressure block (51) facing the outside of the storage groove (52). Guide rod (53), the guide rod (53) is inclined and fixedly connected to the inside of the storage groove (52), the outer wall of the guide rod (53) is slidably inserted and sleeved with the pressure block (51), when the pressure block (51) is squeezed, it slides inclinedly into the inside of the storage groove (52) along the trajectory of the guide rod (53); A spring (54) is slidably sleeved on the outside of a guide rod (53), and the spring (54) acts on the pressure block (51) with an elastic restoring compressive force.

3. The automatic conveying and sealing bagging equipment for material packaging according to claim 1, characterized in that: The rolling component (6) includes: The connecting bracket (61) has a slot at the bottom of the second plate (3), and the connecting bracket (61) is slidably disposed inside the slot; A pressing roller (62) is rotatably mounted on a connecting bracket (61), and the axis of the pressing roller (62) is set in a vertical state. A linear motor (63) is fixedly installed on the back of the second plate (3). The linear motor (63) is used to drive the pressing roller (62) to move back and forth in the slot.

4. The automatic conveying and sealing bagging equipment for material packaging according to claim 3, characterized in that: The rolling component (6) further includes: The transmission frame (64) has a guide portion formed at the bottom of the second plate (3) under the action of the slot. The transmission frame (64) is slidably sleeved on the outside of the guide portion. One side of the transmission frame (64) is fixedly installed on one side of the connecting bracket (61), and the other side of the transmission frame (64) is driven and installed on the output platform of the linear motor (63). A support roller (66) is provided. An installation chamber (65) is provided between the transmission frame (64) and the connecting bracket (61). The support roller (66) is rotatably installed inside the installation chamber (65). The outer wall of the support roller (66) is in contact with the guide part to support and guide the movement of the pressing roller (62).

5. The automatic conveying and sealing bagging equipment for material packaging according to claim 1, characterized in that: The molding component (7) includes: An integrated bracket and a first flexible plate (73) are provided, wherein the first flexible plate (73) is mounted on the bottom of the second plate (3) via the integrated bracket; The second flexible plate (74) is fixedly installed at the bottom of the first plate (2). The first plate (2) and the second plate (3) move together, so that the first flexible plate (73) and the second flexible plate (74) can flexibly squeeze and exhaust air on both sides of the packaging bag. A light-sensitive patch (75) is arranged in a vertical array and fixedly embedded in the first flexible plate (73) and the second flexible plate (74). The light-sensitive patch (75) collects the curvature of the first flexible plate (73) and the second flexible plate (74) and sorts and arranges the packaging bags according to the first flexible plate (73) and the second flexible plate (74).

6. The automatic conveying and sealing bagging device for material packaging according to claim 5, characterized in that: The integrated support includes: An open frame (71) is fixedly installed at one end on the protrusion of the second plate (3). The open frame (71) is C-shaped, and triangular blocks are welded and fixedly connected to the bends of the open frame (71). The bottom plate (72) is fixedly connected to the open frame (71) at its end. The first flexible plate (73) is fixedly installed on the top of the bottom plate (72). The gap between the first flexible plate (73) and the second plate (3) forms a packaging bag conveying channel.

7. The automatic conveying and sealing bagging equipment for material packaging according to claim 1, characterized in that: The driving component includes: Mounting housing (41), which is fixedly mounted on the top of top plate (1); A bidirectional lead screw (43) is rotatably mounted inside the mounting housing (41), and the bidirectional lead screw (43) is arranged perpendicularly and alternately with the first plate (2) and the second plate (3); Servo motor (42), the servo motor (42) is fixedly installed at the end of the mounting housing (41), and the output end of the servo motor (42) is connected to the bidirectional lead screw (43) for transmission. Connecting seat (44), the connecting seat (44) is respectively installed on the top of the first plate (2) and the second plate (3), and the connecting seat (44) is slidably disposed inside the mounting housing (41); A connecting component is mounted on a connecting seat (44), which is threadedly connected to a bidirectional lead screw (43) via the connecting component.

8. The automatic conveying and sealing bagging device for material packaging according to claim 7, characterized in that: The connecting component includes: A threaded sleeve (451) is threaded onto the outside of a two-way lead screw (43) and is located inside a connecting seat (44). The positioning block (452) is fixedly connected to the side of the threaded sleeve (451). The side of the inner wall of the connecting seat (44) is provided with a positioning groove (453). The positioning block (452) is slidably engaged in the inside of the positioning groove (453), and the bottom of the positioning block (452) is in contact with the bottom of the inner wall of the positioning groove (453). A limiting rod (454) is vertically fixed inside the positioning groove (453). A limiting groove is opened at the bottom of the positioning block (452). The limiting rod (454) slides and engages with the inner cavity of the limiting groove in the vertical direction.

9. The automatic conveying and sealing bagging device for material packaging according to claim 7, characterized in that: The drive component further includes: The fastener (46) is fixedly connected to the bottom of the connecting seat (44), and the fastener (46) is fixedly connected to the top of the first plate (2) and the second plate (3) respectively. The top of the top plate (1) is provided with a sliding hole, and the outer wall of the fastener (46) is slidably connected to the inner cavity of the sliding hole. The mounting rails are symmetrically and fixedly connected to the bottom of the top plate (1), and the mounting rails are set parallel to the bidirectional lead screw (43); Mounting base, which is fixedly connected to the top of the first plate (2) and the second plate (3) respectively, and the mounting base is slidably engaged with the outside of the mounting track.

10. A method for controlling the transfer of materials for packaging, characterized in that, The method includes the automated conveying and sealing device for material packaging as described in claim 6, specifically comprising the following steps: When the packaging bag is conveyed between the first plate (2) and the second plate (3), and the first plate (2) and the second plate (3) move relative to each other, the first flexible plate (73) and the second flexible plate (74) move relative to each other, so that the first flexible plate (73) and the second flexible plate (74) are clamped on the outside of the packaging bag, so that some of the air inside the packaging bag is discharged. The bending degree of the first flexible plate (73) and the second flexible plate (74) is identified by the photosensitive patch (75), so that the bending degree of the first flexible plate (73) and the second flexible plate (74) matches the content of the product stored inside the packaging bag. The packaging bags filled with the product are classified according to the bending degree of the first flexible plate (73) and the second flexible plate (74), including empty bags, insufficient quantity, normal and overloaded bags, and the packaging bags are classified and discharged according to the classification of the packaging bags. When the curvature of the first flexible plate (73) and the second flexible plate (74) is zero, the packaging bag between the first flexible plate (73) and the second flexible plate (74) is classified as an empty bag and does not need to be sealed before discharge. When the curvature of the first flexible plate (73) and the second flexible plate (74) is less than the normal minimum curvature threshold, and the first flexible plate (73) and the second flexible plate (74) are bent, the packaging bag between the first flexible plate (73) and the second flexible plate (74) is classified as a shortage category and does not need to be sealed for discharge. When the curvature of the first flexible plate (73) and the second flexible plate (74) is between the normal minimum curvature threshold and the maximum curvature threshold, the packaging bag between the first flexible plate (73) and the second flexible plate (74) is classified as normal and sealed and discharged using the rolling component (6); When the curvature of the first flexible plate (73) and the second flexible plate (74) is greater than the normal maximum curvature threshold, the packaging bag between the first flexible plate (73) and the second flexible plate (74) is classified as overloaded and sealed and discharged using the rolling component (6).

Images