Automatic paper valve machine and processing technology thereof

Abstract

The application relates to an automatic paper valve port machine and a processing technology thereof, and relates to the technical field of valve port bag production. The automatic paper valve port machine comprises a frame body, a feeding table and a material taking roller connected to the frame body, a feeding port is formed by keeping a distance between the feeding table and the material taking roller, and the automatic paper valve port machine further comprises a gluing assembly, a first folding assembly for transversely folding paper and a second folding assembly for longitudinally folding paper; the first folding assembly, the gluing assembly and the second folding assembly are sequentially arranged in the frame body; the first folding assembly comprises a first acting roller, a second acting roller and a third acting roller which are all connected to the frame body, a resisting plate for resisting paper is arranged between the first acting roller and the third acting roller, the second acting roller is arranged at the upper end of the third acting roller and forms a folding space, the mutual action of the roller and the resisting plate, and the paper is finally folded, so that the paper can be put into the valve port machine for processing without being pretreated, and the automatic paper valve port machine has the effect of higher working efficiency.

Description

Technical Field

[0001] This application relates to the field of valve bag manufacturing technology, and in particular to an automatic paper valve machine and its processing technology. Background Technology

[0002] Paper bags are widely used for packaging various goods due to their unique environmental protection properties. The paper bag manufacturing process involves folding paper raw materials into a bag shape and applying adhesive.

[0003] Typically, paper is folded in half, and glue is applied to the joint between the folded ends. Paper bags formed in this way have lower strength and poor bottom support when loaded with items.

[0004] To enhance the overall strength of the paper bag, before folding the paper in half, one side of the paper is folded inward along its horizontal direction to form a reinforcing strip, which strengthens the bottom of the formed paper bag.

[0005] This requires the paper to be folded in both the horizontal and vertical directions. Traditional valve machines can only fold the paper in half and apply glue using a folding plate. When forming this type of reinforced paper bag, the paper needs to be folded in advance to form a pre-made product, which is then placed into the valve machine for further forming, resulting in low work efficiency. Summary of the Invention

[0006] The purpose of this application is to provide an automatic paper valve machine with higher working efficiency and its processing technology.

[0007] Firstly, the automatic paper valve machine provided in this application adopts the following technical solution:

[0008] An automatic paper valve machine includes a frame, a feeding platform and a feeding roller connected to the frame, wherein the feeding platform and the feeding roller are spaced apart to form a feeding port, and also includes an adhesive application assembly, a first folding assembly for folding paper laterally and a second folding assembly for folding paper longitudinally.

[0009] The first folding assembly, the adhesive application assembly, and the second folding assembly are sequentially arranged within the frame body;

[0010] The first folding assembly includes a first action roller, a second action roller, and a third action roller, all connected to the frame. A contact plate for contacting the paper is inserted between the first action roller and the third action roller. The second action roller is placed above the third action roller and forms a folding space.

[0011] By adopting the above technical solution, the paper is stacked on the feeding platform, and the feeding roller moves the paper from the feed port into the first folding assembly. When the paper enters between the first and second acting rollers, a portion of the paper will come into contact with the abutment plate to prevent the paper from continuing to move around the first acting roller, causing the side of the paper near the abutment plate to arch up. The arched paper then contacts the outer surfaces of the second and third acting rollers respectively, and enters the folding space under the action of the second and third acting rollers. Through the interaction between the rollers and the abutment plate, the paper is finally folded, so that the paper can be put into the valve machine for processing without pretreatment, thus improving work efficiency.

[0012] Optionally, the length of the abutment plate inserted between the first and third abutment rollers is adjustable.

[0013] By adopting the above technical solution, the length of the abutment plate inserted between the first and third action rollers can be adjusted according to different types of paper and the required size of the reinforcing strip, which facilitates the forming of paper bags of different sizes and improves versatility.

[0014] Optionally, the upper side of the feeding roller is rotatably connected to a paper support plate and an adsorption unit for adsorbing paper. When the adsorption unit is in the closed state, the paper support plate blocks the feed inlet. When the adsorption unit is in the working state, the paper support plate exits the feed inlet.

[0015] By adopting the above technical solution, when the adsorption unit rotates counterclockwise, the material support plate exits the feed inlet. After the adsorption unit approaches the paper, the paper is adsorbed and dragged into the feed inlet. Then, the adsorption unit rotates clockwise and exits the feed inlet. At this time, the material support plate rotates counterclockwise to re-seal the feed inlet. When the adsorption unit is in working condition again, the material support plate rotates clockwise to exit the feed inlet again, ensuring the stable operation of the feeding process.

[0016] Optionally, the gluing assembly includes a storage platform, a first gluing roller, and a second gluing roller arranged sequentially in a vertical direction and maintaining a distance between them, and the storage platform is provided with a storage trough for storing glue.

[0017] By adopting the above technical solution, the first coating roller rotates and picks up the glue in the storage tank. The glue is transferred from the first coating roller to the second coating roller. When the paper moves to the second coating roller, the glue is evenly applied to the paper, which facilitates subsequent bonding and molding, and also saves the amount of glue used.

[0018] Optionally, a conveying assembly is provided between the first folding assembly and the gluing assembly. The conveying assembly includes a first conveying roller and a second conveying roller arranged sequentially in the transverse direction, with the first conveying roller positioned above the second gluing roller.

[0019] By adopting the above technical solution, after the paper is folded for the first time by the first folding component, the first conveying roller drives the paper to move above the second glue-coating roller. After the second glue-coating roller applies glue to the paper, the paper is transferred from the first conveying roller to the second conveying roller and returns to the upper side of the conveying component, which facilitates the subsequent secondary folding process.

[0020] Optionally, the first action roller, the first conveying roller, and the second conveying roller are each provided with a plurality of air extraction holes for adsorbing paper.

[0021] By adopting the above technical solution, when the first action roller, the first conveying roller and the second conveying roller move the paper, the paper comes into contact with the surrounding area of ​​the air extraction hole, and the air extraction hole extracts air, forming an adsorption force on the paper. This allows the paper to remain in contact with the first action roller, the first conveying roller and the second conveying roller when they move to the underside, thus preventing the paper from falling off during folding and gluing, and ensuring the smooth production of paper bags.

[0022] Optionally, a limiting member for guiding paper movement is provided between the second action roller and the first conveying roller. The limiting member includes a first connecting rod and a plurality of limiting plates connected to the first connecting rod. An arc-shaped groove matching the third action roller is provided on one side of the limiting plate.

[0023] After the paper is folded through the folding space formed by the second and third action rollers, it may slide out obliquely upwards in the gap between the second action roller and the first conveyor roller, causing it to disengage from the conveying assembly and making it difficult to proceed with the next gluing process. By adopting the above technical solution, the side of the limiting plate with the arc groove extends obliquely downwards into the gap between the second action roller and the first conveyor roller to guide the movement of the paper. Under the action of the arc groove, the paper moves obliquely downwards smoothly into the gap between the third action roller and the first conveyor roller, and is smoothly moved above the second gluing roller by the drive of the first conveyor roller, so as to successfully perform the gluing process.

[0024] Optionally, the second folding assembly includes a first folding plate and a second folding plate arranged vertically in sequence and maintaining a distance between them, with the first folding plate and the second folding plate being staggered.

[0025] By adopting the above technical solution, the glued paper enters between the first folding plate and the second folding plate. The first folding plate and the second folding plate, which are arranged in an alternating manner, have a smaller and smaller gap between them along the length of the paper as the paper moves. This causes the two ends of the paper to bend in the opposite direction to the center along the length of the paper, so that the paper is finally formed into a pocket-sized paper bag. The structure is simple and easy to implement.

[0026] Secondly, this application provides a processing technology based on the aforementioned automatic paper valve machine, comprising the following steps:

[0027] S1. Equipment Adjustment: Adjust the length of the contact plate extending between the first and second action rollers according to the size of the paper.

[0028] S2, Feeding: Place the stacked paper on the feeding platform, start the equipment, and the stacked paper is sequentially adsorbed by the adsorption unit and transferred to the picking roller;

[0029] S3, Folding: The paper enters between the first and second action rollers under the drive of the feed roller. The contact plate presses against the end of the paper, causing the paper to be arched. The arched part first enters the folding space and is folded.

[0030] S4. Applying glue: Apply glue to one side of the paper along its length.

[0031] S5. Secondary fold: After the glue is applied, fold the paper inward along both sides of its length to complete the bonding and form a paper bag.

[0032] S6. Unloading: Collect the formed paper bags and transport them to the finished product area after passing quality inspection.

[0033] By adopting the above technical solution, the equipment can be adjusted according to different types of paper. After the paper is fed, it is folded, glued, and folded again to form a paper bag. Finally, the paper is unloaded at the collection table. This method is more versatile and facilitates the production of different models of paper bags.

[0034] In summary, this application includes at least one of the following beneficial technical effects:

[0035] 1. In this application, the interaction between the rollers and the contact plate enables the paper to be folded in its width direction. When the paper enters between the first and second action rollers, a portion of the paper will come into contact with the contact plate to prevent the paper from continuing to move around the first action roller. This causes the side of the paper closest to the contact plate to arch up. The arched paper then contacts the outer surfaces of the second and third action rollers respectively, and enters the folding space under the action of the second and third action rollers. This allows the paper to be put into the valve machine for processing without prior pretreatment, thus improving work efficiency.

[0036] 2. The length of the contact plate extending between the first and third action rollers in this application is adjustable. Depending on the type of paper and the required size of the reinforcing strip, the length of the contact plate inserted between the first and third action rollers can be adjusted to facilitate the forming of paper bags of different sizes, thereby improving versatility.

[0037] 3. In this application, the paper is fed by the adsorption unit and the support plate. When the adsorption unit rotates counterclockwise, the support plate exits the feed port. After the adsorption unit approaches the paper, the paper is adsorbed and dragged into the feed port. Then the adsorption unit rotates clockwise and exits the feed port. At this time, the support plate rotates counterclockwise to re-seal the feed port. When the adsorption unit is working again, the support plate rotates clockwise to exit the feed port again, ensuring the stable operation of the feeding process. Attached Figure Description

[0038] Figure 1 This is a three-dimensional structural diagram of the automatic paper valve machine in this application;

[0039] Figure 2 This is a partial cross-sectional structural schematic diagram of the automatic paper valve machine in this application;

[0040] Figure 3 This is a three-dimensional structural diagram of the valve port feeding area in this application;

[0041] Figure 4 This is a three-dimensional structural schematic diagram of the first folding component in this application;

[0042] Figure 5 This is a three-dimensional structural diagram of the conveyor and the second folding assembly in this application.

[0043] In the diagram, 1 is the frame; 2 is the loading platform; 3 is the material handling roller; and 31 is the chute.

[0044] 1. Gluing assembly; 41. Material storage platform; 411. Material storage tank; 42. First glue application roller; 43. Second glue application roller;

[0045] 2. First folding assembly; 51. First actuating roller; 52. Second actuating roller; 53. Third actuating roller; 54. Contact plate; 55. Folding space;

[0046] 3. Second folding assembly; 61. First folding plate; 62. Second folding plate;

[0047] 4. Conveying assembly; 71. First conveying roller; 72. Second conveying roller;

[0048] 5. Positioning component; 81. Fixing plate; 82. Adjusting rod; 821. Adjusting groove; 83. Positioning post;

[0049] 6. Limiting component; 91. First connecting rod; 92. Limiting plate; 921. Arc groove;

[0050] 7. Feed inlet; 20. Air extraction hole; 30. Material support plate; 40. Adsorption unit; 50. Pre-compression component; 501. First pre-compression roller; 502. Second pre-compression roller; 60. Conveyor table; 601. Conveyor belt; 602. Drive roller; 603. First limiting roller; 604. Second limiting roller; 70. Collecting wheel; 701. Collecting trough; 80. Collecting platform; 90. Limiting rod. Detailed Implementation

[0051] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0052] Example 1:

[0053] An automatic paper valve machine and its processing technology, referring to Figure 1 and Figure 2 The device includes a frame 1, a feeding platform 2 connected to the frame 1, and a feeding roller 3. The frame 1 is equipped with an adhesive application component 4, a first folding component 5 for folding paper horizontally, and a second folding component 6 for folding paper vertically. The first folding component 5, the adhesive application component 4, and the second folding component 6 are sequentially arranged inside the frame 1.

[0054] Reference Figure 2 and Figure 3 The feeding platform 2 and the picking roller 3 are spaced apart to form a feeding port 10. The feeding platform 2 is inclined and connected to the frame 1. The feeding platform 2 is connected to a positioning component 8, which includes a fixing plate 81, an adjusting rod 82 and a positioning column 83. The fixing plate 81 is connected to the feeding platform 2, one end of the adjusting rod 82 is connected to the positioning column 83, and the other end of the adjusting rod 82 is movably connected to the positioning component 8.

[0055] Specifically, an adjustment groove 821 is provided in the center of the adjustment rod 82 along its length. Correspondingly, multiple bolt holes are provided on the fixing plate 81. When adjusting the position of the adjustment rod 82, the adjustment groove 821 is aligned with the threaded hole, and then screws are installed to complete the pre-fixing. The adjustment plate is controlled to move relative to the fixing plate 81 to change the position of the positioning column 83.

[0056] There are two positioning posts 83 and two adjusting rods 82. They are arranged opposite to the fixed plate 81 with one positioning post 83 and one adjusting rod 82 as a group. When the paper is placed on the feeding table 2, the two positioning posts 83 abut against one side of the paper to prevent the paper from slipping. The other side of the paper is covered above the feed port 10 to facilitate feeding.

[0057] Reference Figure 3The upper side of the feeding roller 3 is rotatably connected to a paper support plate 30 and an adsorption unit 40 for adsorbing paper. Both the paper support plate 30 and the adsorption unit 40 are rotatably connected to the frame 1 through a second connecting rod. The paper support plate 30 is closer to the feeding platform 2 in the horizontal direction.

[0058] There are two material support plates 30, which are spaced apart along the length of the second connecting rod and are set one-to-one with the two positioning posts 83. The adsorption unit 40 is placed between the two material support plates 30. The adsorption unit 40 adopts an air suction pipe. When the adsorption unit 40 is close to the paper, the adsorption unit 40 sucks air to form an adsorption force to hold the paper. It should be noted that the air suction pipe works through an external air pump. In this embodiment, the air pump is not shown.

[0059] Reference Figure 2 and Figure 3 At this time, the adsorption unit 40 is in the closed state, and the material support plate 30 blocks the feed inlet 10. When the adsorption unit 40 is in the working state, the material support plate 30 exits the feed inlet 10. The specific working situation is as follows: When no material is being fed, the material support plate 30 blocks the feed inlet 10, and one bottom side of the paper abuts against the material support plate 30. When feeding begins, the adsorption unit 40 rotates counterclockwise to approach the paper.

[0060] After the paper is adsorbed by the adsorption unit 40, the adsorption unit 40 rotates clockwise to drag the paper into the feed port 10. At the same time, the material support plate 30 rotates clockwise to move away from the paper and exits the feed port 10. After the paper enters the feed port 10, the material support plate 30 rotates counterclockwise to approach the paper again and re-seal the feed port 10. At this time, the adsorption unit 40 closes again.

[0061] Reference Figure 3 The feeding roller 3 is arranged in a circular shape with a notch. A groove 31 is provided at the notch of the feeding roller 3. Specifically, the groove 31 is arranged around the feeding roller 3 one-twelfth of a circle, and the cross-section of the groove is triangular, forming a hook-shaped space. When the feeding roller 3 rotates, one end of the paper entering from the feed port 10 enters the hook-shaped space and is limited. As the feeding roller 3 rotates, it is transferred to the first folding assembly 5.

[0062] Reference Figure 2 and Figure 4 The first folding assembly 5 includes a first action roller 51, a second action roller 52, and a third action roller 53, all connected to the frame 1. The outer diameter of the first action roller 51 is larger than the outer diameters of the second action roller 52 and the third action roller 53. The second action roller 52 is placed on top of the third action roller 53 and forms a folding space 55. The first action roller 51 is located below the feeding roller 3. A contact plate 54 for contacting the paper is inserted between the first action roller 51 and the third action roller 53.

[0063] In this embodiment, the first action roller 51 and the third action roller 53 rotate clockwise, and the take-up roller 3 and the second action roller 52 rotate counterclockwise. When the take-up roller 3 moves the paper from the feed port 10 into the first folding assembly 5, and the paper then enters between the first action roller 51 and the second action roller 52, a portion of the paper will come into contact with the abutment plate 54, making it difficult for the paper to continue moving around the first action roller 51, causing the side of the paper near the abutment plate 54 to arch up.

[0064] The arched paper comes into contact with the outer surfaces of the second action roller 52 and the third action roller 53 respectively, and enters the folding space 55 under the action of the second action roller 52 and the third action roller 53. Through the interaction between the rollers and the contact plate 54, the paper is finally folded.

[0065] Reference Figure 2 and Figure 4 The length of the contact plate 54 inserted between the first action roller 51 and the third action roller 53 is adjustable. Specifically, in this embodiment, the frame 1 is provided with an adjustment groove 821. The adjustment groove 821 is opened along the insertion direction of the contact plate 54, so that the contact plate 54 can slide along the adjustment groove 821 to adjust the length extended between the first action roller 51 and the third action roller 53. It should be noted that the adjustment groove 821 in this embodiment is not shown.

[0066] The degree of paper arching is directly related to the length of the abutment plate 54 inserted between the first action roller 51 and the third action roller 53. The shorter the length of the abutment plate 54 between the two, the higher the proportion of paper arching and the wider the reinforcing strip formed by folding.

[0067] Reference Figure 2 and Figure 4 The first folding assembly 5 and the conveying assembly 7 are arranged sequentially in the horizontal direction. The conveying assembly 7 includes a first conveying roller 71 and a second conveying roller 72. The first conveying roller 71 and the second conveying roller 72 are connected by gear transmission. The first conveying roller 71 rotates counterclockwise and the second conveying roller 72 rotates clockwise. The first conveying roller 71 and the second conveying roller 72 are arranged sequentially in the horizontal direction, and the first conveying roller 71 is located on the upper side of the gluing assembly 4. The first conveying roller 71 is set close to the third action roller 53.

[0068] After the paper is folded, it exits from the folding space 55 and is moved by the first conveyor roller 71. When the paper moves to the lowest point of the first conveyor roller 71, the gluing component 4 applies glue to the paper. The glued paper is then moved by the second conveyor roller 72 to the second folding component 6.

[0069] Reference Figure 4In order to provide multiple air extraction holes 20 for adsorbing paper on the first action roller 51, the first conveying roller 71 and the second conveying roller 72, an air extraction tube is inserted into the air extraction hole 20. When the first action roller 51, the first conveying roller 71 and the second conveying roller 72 start to contact the paper and drive it to move, the air extraction tube starts to perform air extraction. Its principle is the same as that of the adsorption unit 40, which is to form an adsorption force on the paper and prevent the paper from falling off.

[0070] Reference Figure 2 and Figure 4 To prevent the paper from passing through the gap between the second action roller 52 and the third action roller 53 and exiting the device from the top, a limiting member 9 is provided between the second action roller 52 and the first conveying roller 71 to guide the movement of the paper. The limiting member 9 includes a first connecting rod 91 and a plurality of limiting plates 92 connected to the first connecting rod 91. The limiting plates 92 face the third action roller 53 and are generally arc-shaped, matching the first conveying roller 71 to ensure the normal operation of the first conveying roller 71. Furthermore, the limiting plate 92 has an arc-shaped groove 921 on the side facing the third action roller 53 that matches the third action roller 53.

[0071] The limiting plate 92 blocks the large gap between the second action roller 52 and the first conveying roller 71 located obliquely above, and guides the movement of the paper. Under the action of the arc groove 921, the paper moves obliquely downward and smoothly enters the gap between the third action roller 53 and the first conveying roller 71. Driven by the first conveying roller 71, it moves smoothly to the top of the second glue coating roller 43 for successful glue application.

[0072] Reference Figure 2 and Figure 4 The gluing assembly 4 includes a storage platform 41, a first gluing roller 42, and a second gluing roller 43 arranged sequentially in the vertical direction and maintaining a distance. The storage platform 41 has a storage trough 411 for storing glue. The second gluing roller 43 is closer to the first conveying roller 71 than the first gluing roller 42 and is connected to the first gluing roller 42 by gear transmission.

[0073] In this embodiment, the first coating roller 42 rotates counterclockwise and the second coating roller 43 rotates clockwise. During the rotation, the first coating roller 42 picks up the glue placed in the storage tank 411 and transfers the glue to the second coating roller 43. Through the gap between the first coating roller 42 and the second coating roller 43, the picked-up glue is evenly applied to the second coating roller 43. When the paper moves to the lowest point of the first conveying roller 71, the second coating roller 43 applies the glue to the paper.

[0074] Reference Figure 2 and Figure 4A pre-pressing component 50 is provided between the conveying component 7 and the second folding component 6. The pre-pressing component 50 includes a first pre-pressing roller 501 and a second pre-pressing roller 502 arranged sequentially in the vertical direction. After the paper is disengaged from the second conveying component, the paper enters the gap formed between the first pre-pressing roller 501 and the second pre-pressing roller 502 to re-press the paper and strengthen the creases generated in the first folding component 5.

[0075] Reference Figure 1 and Figure 5 The second folding assembly 6 is placed on the conveyor 60, which includes a transmission belt and a plurality of transmission rollers 602 placed inside the transmission belt 601. A first limiting roller 603 and a second limiting roller 604 are sequentially arranged above the transmission belt 601. When the paper is placed on the transmission belt and moved by the transmission belt, the paper is sequentially limited by the first limiting roller 603 and the second limiting roller 604.

[0076] Reference Figure 5 The second folding assembly 6 consists of two sets, symmetrically arranged relative to the transmission belt. The second folding assembly 6 includes a first folding plate 61 and a second folding plate 62 arranged vertically in sequence and maintaining a distance. The first folding plate 61 and the second folding plate 62 are staggered. Specifically, the first folding plate 61 and the second folding plate 62 have an angle difference on the side near the pre-compression member 50 and form an opening.

[0077] The paper enters the gap formed between the conveyor belt and the first folding plate 61. After the paper moves a certain distance, the end of the paper is close to the opening. The second folding plate 62 is bent downward on the side near the pre-pressing member 50. After the paper enters the opening, both ends of the paper along the length direction are lifted by the second folding plate 62. As the paper moves, the distance between the first folding plate 61 and the second folding plate 62 along the length direction of the paper becomes smaller and smaller. The paper is eventually folded to form a paper bag.

[0078] Reference Figure 5 The position of the crease formed after the paper is folded at the second folding assembly 6 is related to the distance between the two opposing first folding plates 61. By adjusting the first folding plates 61, the position of the crease on the paper can be changed. Specifically, the first folding plate 61 and the second folding plate 62 are slidably connected to the frame 1. In this embodiment, a plurality of positioning elements 8 are connected above the transmission table. Their structure is the same as that of the positioning elements 8 placed at the loading table 2. Among them, a plurality of positioning posts 83 are correspondingly connected to the first folding plate 61 and the second folding plate 62.

[0079] Reference Figure 1At the final conveying point of the conveyor belt 601, a collecting wheel 70 is provided. Multiple collecting troughs 701 are arranged around the collecting wheel 70. When the paper bags are transported to the final conveying point, they enter the collecting troughs 701. A collecting platform 80 is provided at intervals on one side of the collecting wheel 70. The collecting platform 80 is connected to the frame 1. Two limiting rods 90 are connected to the collecting platform 80 and are symmetrically arranged relative to the collecting wheel 70. When the collecting wheel 70 rotates, the limiting rods 90 limit the paper bags. The paper bags no longer rotate with the collecting wheel 70 but stay on the upper end of the limiting rods 90. As the collecting wheel 70 continues to rotate, the paper bags accumulate at the collecting platform 80.

[0080] The implementation principle of Embodiment 1 of this application is as follows:

[0081] Paper is drawn one by one into the feed inlet 10 at the feeding table 2. When it enters between the first action roller 51 and the second action roller 52 under the drive of the feeding roller 3, part of the paper will come into contact with the abutment plate 54 to prevent the paper from continuing to move around the first action roller 51. This causes the side of the paper near the abutment plate 54 to arch up. The arched paper then contacts the outer surfaces of the second action roller 52 and the third action roller 53 respectively. Under the action of the second action roller 52 and the third action roller 53, the paper enters the folding space 55. Through the interaction between the rollers and the abutment plate 54, the paper is finally folded.

[0082] The paper, which has been folded once, enters the second folding component 6 under the drive of the conveying component 7. Before entering, the first conveying roller drives the paper to come close to the gluing component 4, and the second gluing roller 43 applies glue to one side of the paper along the length direction. After the treatment, it passes through the pre-pressing component 50 for pre-pressing.

[0083] When the paper is about to reach the second folding assembly 6, the paper enters the gap formed between the conveyor belt and the first folding plate 61. After the paper continues to move a distance, the end of the paper approaches the opening. The second folding plate 62 is bent downward on the side near the pre-pressing member 50. When the paper enters the opening, both ends of the paper along the length direction are lifted by the second folding plate 62. As the paper moves, the distance between the first folding plate 61 and the second folding plate 62 along the length direction of the paper becomes smaller and smaller. The paper is finally folded to form a paper bag.

[0084] The formed paper bags are inserted one by one into the multiple collection slots 701 opened on the collection wheel 70. As the collection wheel 70 rotates and the limit rod 90 blocks, the paper bags accumulate at the collection platform 80. When a certain amount is accumulated, the relevant personnel remove the paper bags for the next step of processing.

[0085] Example 2:

[0086] The difference between this embodiment 2 and embodiment 1 is that it discloses a processing technology based on the above-mentioned automatic paper valve machine, including the following steps:

[0087] S1. Equipment adjustment: Adjust the length of the contact plate 54 between the first action roller 51 and the second action roller 52 according to the size of the paper.

[0088] S2, Feeding: Place the stacked paper on the feeding platform 2, start the equipment, and the stacked paper is sequentially adsorbed by the adsorption unit 40 and transferred to the picking roller 3.

[0089] S3, Folding: The paper enters between the first action roller 51 and the second action roller 52 under the drive of the feeding roller 3. The contact plate 54 presses against the end of the paper to make the paper arched. The arched part first enters the folding space 55 and is folded.

[0090] S4. Applying glue: Apply glue to one side of the paper along its length.

[0091] S5. Secondary fold: After the glue is applied, fold the paper inward along both sides of its length to complete the bonding and form a paper bag.

[0092] S6. Unloading: Collect the formed paper bags and transport them to the finished product area after passing quality inspection.

[0093] The implementation principle of Embodiment 2 of this application is as follows: the equipment is adjusted according to different types of paper. After the paper is fed, it is folded, glued, and folded twice to form a paper bag. Finally, the paper is unloaded at the collection table 80. It has higher versatility and is convenient for producing paper bags of different models.

[0094] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. An automatic paper valve machine, comprising a frame (1), a feeding platform (2) connected to the frame (1), and a feeding roller (3), wherein the feeding platform (2) and the feeding roller (3) are spaced apart to form a feed inlet (10), characterized in that, It also includes an adhesive assembly (4), a first folding assembly (5) for folding paper laterally, and a second folding assembly (6) for folding paper longitudinally. The first folding assembly (5), the adhesive application assembly (4), and the second folding assembly (6) are sequentially arranged inside the frame (1); The first folding assembly (5) includes a first action roller (51), a second action roller (52), and a third action roller (53) all connected to the frame (1). A contact plate (54) for contacting the paper is inserted between the first action roller (51) and the third action roller (53). The second action roller (52) is positioned above the third action roller (53) and forms a folding space (55). The length of the contact plate (54) inserted between the first action roller (51) and the third action roller (53) is adjustable. A conveying assembly (7) is provided between the first folding assembly (5) and the gluing assembly (4). The conveying assembly (7) includes a first conveying roller (71) and a second conveying roller (72) arranged sequentially in the transverse direction. The first action roller (51), the first conveying roller (71), and the second conveying roller (72) are all provided with a plurality of air extraction holes (20) for adsorbing paper. The first action roller (51) and the third action roller (53) rotate clockwise, and the feeding roller (3) and the second action roller (52) rotate counterclockwise. The gluing assembly (4) includes a storage platform (41) arranged vertically and maintaining a distance between it, a first gluing roller (42), and a second gluing roller (43). The storage platform (41) has a storage trough (411) for storing glue. The first conveying roller (71) is positioned above the second gluing roller (43). A limiting member (9) for guiding paper movement is provided between the second action roller (52) and the first conveying roller (71). The limiting member (9) includes a first connecting rod (91) and multiple connecting rods connected to the first action roller (52). The limiting plate (92) on the connecting rod (91) has an arc groove (921) on one side that matches the third action roller (53); and the side of the limiting plate (92) with the arc groove (921) extends obliquely downward into the space between the second action roller (52) and the first conveying roller (71); the second folding assembly (6) has a first folding plate (61) and a second folding plate (62) arranged vertically in sequence and maintaining a distance between them, and the first folding plate (61) and the second folding plate (62) are staggered.

2. The automatic paper valve machine according to claim 1, characterized in that, The upper side of the feeding roller (3) is rotatably connected to a paper support plate (30) and an adsorption unit (40) for adsorbing paper. When the adsorption unit (40) is in the closed state, the paper support plate (30) blocks the feed port (10). When the adsorption unit (40) is in the working state, the paper support plate (30) exits the feed port (10).

3. A processing method based on the automatic paper valve machine according to any one of claims 1-2, characterized in that, Includes the following steps: S1. Equipment adjustment: Adjust the length of the contact plate (54) between the first action roller (51) and the third action roller (53) according to the size of the paper; S2, feeding: Place the stacked paper on the feeding platform (2), start the equipment, and the stacked paper is adsorbed by the adsorption unit (40) and transferred to the picking roller (3). S3, Folding: The paper enters between the first action roller (51) and the second action roller (52) under the drive of the feeding roller (3). The contact plate (54) presses against the end of the paper to make the paper arched. The arched part first enters the folding space (55) and is folded. S4. Applying glue: Apply glue to one side of the paper along its length. S5. Secondary fold: After the glue is applied, fold the paper inward along both sides of its length to complete the bonding and form a paper bag. S6. Unloading: Collect the formed paper bags and transport them to the finished product area after passing quality inspection.

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