Packaging bag making machine

Abstract

The utility model provides a kind of packing bag making machine, the packing bag making machine no longer relies on the packaging material that color mark block is printed in advance, effectively reduce the loss and waste caused by the size change of packing, significantly improve production efficiency, can also flexible response small batch, multi-species production demand simultaneously. Specifically, packing bag making machine includes first conveying device, spraying device and control device, wherein, first conveying device is configured as can transmit packaging material along preset transmission path;Spraying device includes data acquisition roller, encoder, ink-jet printer and glue sprayer, wherein, data acquisition roller is configured as can rotate with the movement of packaging material;Encoder is configured as can output first signal according to the rotation of data acquisition roller;Ink-jet printer is configured as can spray preset mark on one side of packaging material, glue sprayer is configured as can spray preset glue line on the other side of packaging material;Control device can control ink-jet printer and glue sprayer work according to first signal.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a packaging bag making machine. Background Technology

[0002] Packaging bags are widely used in daily life and industrial production today. During the production process, the length of the packaging bag is usually determined based on the size and thickness of the contents, and then produced according to this length to ensure that the bag matches the contents in terms of volume, fit, and appearance.

[0003] Currently, many packaging bag making machines use roll film as packaging material. Before entering the packaging machine, these roll films need to be printed with continuous and equally spaced color blocks at specific intervals. When the roll film enters the packaging bag making machine, the pressing and cutting device in the packaging bag making machine can identify the color blocks and perform pressing and cutting operations on the packaging material according to the position of the color blocks, thereby producing packaging bags that meet the size requirements.

[0004] However, this method of pre-printing color blocks on the roll film has poor versatility for different packaging materials. If the volume or dimensions of the contents change significantly, the length of the packaging bag generally needs to be adjusted accordingly. In this case, the position and spacing of the color blocks need to be recalculated in the front-end printing process, a new printing plate needs to be made, and a roll film that meets the new bag length requirements needs to be printed. This results in a significant loss and waste of machine time, labor, raw materials, and energy in the printing process. In addition, the minimum order quantity for printing is generally quite high. If the production of products with flexible sizes and styles and relatively small order quantities is required, the pre-printed roll film material often accumulates in large quantities, causing waste.

[0005] The content of the background section is merely the technology known to the inventor and does not necessarily represent the prior art in this field. Utility Model Content

[0006] To address one or more deficiencies in the existing technology, this utility model provides a packaging bag making machine, including a first conveying device, a spraying device, and a control device, wherein... The first conveying device is configured to convey packaging materials along a preset conveying path; The spraying device includes a data acquisition roller, an encoder, a coding machine, and a glue sprayer, wherein, The data acquisition roller is disposed on the transmission path and configured to rotate as the packaging material moves; The encoder is connected to one end of the data acquisition roller and is configured to output a first signal according to the rotation of the data acquisition roller; The inkjet printer and the glue sprayer are arranged opposite to each other and are located downstream of the data acquisition roller. The inkjet printer is configured to spray a preset mark on one side of the packaging material, and the glue sprayer is configured to spray a preset glue line on the other side of the packaging material. The control device is coupled to the encoder, the inkjet printer, and the glue sprayer respectively, and is configured to control the inkjet printer and the glue sprayer to work according to the first signal.

[0007] According to one aspect of the present invention, the spraying device further includes one or more pressure rollers, the pressure rollers being arranged side by side with the data acquisition rollers, and a channel for packaging material to pass through being provided between the pressure rollers and the data acquisition rollers.

[0008] According to one aspect of the present invention, the spraying device further includes a first visual detection unit, which is arranged in parallel with the inkjet printer and located downstream of the inkjet printer. The first visual detection unit is configured to recognize the preset mark and output a second signal based on the recognition result.

[0009] According to one aspect of the present invention, the packaging bag making machine further includes an alarm device; The control device is coupled to the first visual detection unit and the alarm device respectively, and is configured to output a third signal according to the second signal. The alarm device is configured to issue an alarm according to the third signal.

[0010] According to one aspect of the present invention, the spraying device further includes: A fixed rod, configured to extend along a first direction; and A sliding bracket is mounted on the fixed rod and configured to slide along the fixed rod; The inkjet printer and the first vision detection unit are respectively mounted on the sliding bracket and configured to move along the second direction on the sliding bracket.

[0011] According to one aspect of the present invention, the sliding bracket is provided with a through hole and a threaded hole that communicate with each other; The fixing rod passes through the through hole and slides in the through hole; The spraying device further includes a first fastening knob, which is screwed into the threaded hole and threadedly engaged with the threaded hole.

[0012] According to one aspect of the present invention, the preset glue lines sprayed by the glue sprayer include a bag head sealing glue line, a bag tail sealing glue line, and a middle sealing glue line. The preset markings printed by the inkjet printer are color blocks.

[0013] According to one aspect of the present invention, the packaging bag making machine further includes a packaging device and a cutting device, wherein, The packaging device is disposed on the transport path and located downstream of the spraying device, and the packaging device is configured to fold the packaging material into a cylindrical shape; The cutting device is located on the transmission path and downstream of the packaging device. The cutting device is configured to recognize the preset mark and cut the cylindrical packaging material according to the recognition result.

[0014] According to one aspect of the present invention, the packaging device includes: A first folding guide rod is configured to fold a first side edge of the packaging material toward the center of the packaging material; and The second folding guide is configured to fold the second side of the packaging material toward the center of the packaging material.

[0015] According to one aspect of the present invention, the cutting device includes: A second visual detection unit is disposed above the transmission path and configured to recognize the preset identifier; A cutting blade is positioned above the transport path and downstream of the second vision inspection unit; and A driver, connected to the cutting tool, is configured to drive the cutting tool to cut the cylindrical packaging material based on the recognition result of the second vision detection unit.

[0016] According to one aspect of the present invention, the pressure cutting tool includes a first pressure strip, a second pressure strip, and a cutter, wherein the cutter is connected between the first pressure strip and the second pressure strip.

[0017] According to one aspect of the present invention, the packaging bag making machine further includes a second conveying device, which is connected to the first conveying device and configured to feed the packaged material into the cylindrical packaging material during the process of the packaging device folding the packaging material into a cylindrical shape.

[0018] Compared with existing technologies, embodiments of this utility model provide a packaging bag-making machine. This packaging bag-making machine is equipped with a spraying device that can accurately spray preset markings and preset adhesive lines onto the surface of the packaging material based on the real-time transmission of the packaging material. This design eliminates the reliance on pre-printed colored markings on the packaging material, significantly improving the versatility of the packaging material, effectively reducing losses and waste caused by variations in packaging size, and significantly increasing production efficiency. It also allows the packaging bag-making machine to flexibly meet the needs of small-batch, multi-variety production. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 A schematic diagram of a packaging bag making machine according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of a spraying apparatus according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of a preset mark and a preset adhesive line according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of a partial structure of a spraying apparatus according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of a pressure cutting tool according to an embodiment of the present invention is shown.

[0021] In the diagram: 100, Packaging bag making machine; 110, First conveying device; 111, Unwinding roller; 112, Conveying roller; 120, Spraying device; 121, Data acquisition roller; 122, Encoder; 123, Inkjet printer; 124, Glue sprayer; 125, Pressure roller; 126, First vision inspection unit; 127, Fixed rod; 128, Sliding bracket; 1281, Through hole; 1282, Movable sleeve; 1291, First fastening knob; 1292, Second fastening knob; 130, Control device; 1 40. Alarm device; 150. Packaging device; 151. First folding guide rod; 152. Second folding guide rod; 153. Turning guide plate; 160. Second conveying device; 170. Pressure cutting device; 171. Second vision inspection unit; 172. Pressure cutting blade; 1721. First pressure strip; 1722. Second pressure strip; 1723. Cutting blade; 173. Driver; 200. Packaging material; 211. Bag head sealing glue line; 212. Bag tail sealing glue line; 213. Center sealing glue line; 221. Color block; Detailed Implementation

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] Figure 1 A schematic diagram of a packaging bag making machine 100 according to an embodiment of the present invention is shown below, in conjunction with... Figure 1 Provide a detailed description.

[0029] like Figure 1 As shown, the packaging bag making machine 100 mainly includes a frame and a first conveying device 110, a spraying device 120, and a control device 130 mounted on the frame. The first conveying device 110 may include an unwinding roller 111 and multiple conveying rollers 112. The unwinding roller 111 is used to mount packaging material 200, which may be a roll of film, roll of paper, or other similar rolled flexible material. The multiple conveying rollers 112 cooperate with each other to accurately guide the packaging material 200 along a preset conveying path.

[0030] The spraying device 120 is used to spray pre-set markings and pre-set adhesive lines onto the packaging material 200 for subsequent bag making. Specifically, Figure 2 A schematic diagram of a spraying apparatus 120 according to an embodiment of the present invention is shown, as follows: Figure 2As shown, the spraying device 120 mainly includes a data acquisition roller 121, an encoder 122, an inkjet printer 123, and a glue sprayer 124. The data acquisition roller 121 is pivotally mounted on the frame and located on the transport path of the packaging material 200, allowing it to rotate as the packaging material 200 moves. The encoder 122 is mounted at one end of the data acquisition roller 121 and configured to output a first signal based on the rotation of the data acquisition roller 121. The inkjet printer 123 and the glue sprayer 124 are adjacent to the data acquisition roller 121 and are both located downstream of the data acquisition roller 121 (distinguished by the transport direction of the packaging material 200). In addition, the inkjet printer 123 and the glue sprayer 124 are arranged opposite to each other. The inkjet printer 123 is located below the transport path of the packaging material 200 and is configured to spray a preset mark on the lower (outer) side of the packaging material 200. The glue sprayer 124 is located above the transport path of the packaging material 200 and is configured to spray a preset glue line on the upper (inner) side of the packaging material 200.

[0031] The control device 130 is coupled to the encoder 122, the inkjet printer 123, and the glue sprayer 124, respectively, and is configured to control the operation of the inkjet printer 123 and the glue sprayer 124 based on the first signal. Specifically, the first signal output by the encoder 122 can accurately reflect the rotational speed of the data acquisition roller 121, and the rotation of the data acquisition roller 121 is closely related to the movement of the packaging material 200. Therefore, based on the first signal output by the encoder 122, the actual transmission speed of the packaging material 200 can be accurately calculated, thereby accurately determining the spraying timing of the inkjet printer 123 and the glue sprayer 124, ensuring that the inkjet printer 123 and the glue sprayer 124 can accurately spray at designated positions on the packaging material 200.

[0032] Figure 3 A schematic diagram of a preset mark and a preset adhesive line according to an embodiment of the present invention is shown. Figure 3 As shown, the pre-set adhesive lines sprayed by the adhesive sprayer 124 may include a bag head sealing adhesive line 211, a bag tail sealing adhesive line 212, and a middle sealing adhesive line 213. The bag head sealing adhesive line 211, the middle sealing adhesive line 213, and the bag tail sealing adhesive line 212 are along the length of the packaging material 200 ( Figure 3 The packaging material 200 is sprayed alternately in the first direction (i.e., the conveying direction of the packaging material 200), wherein the bag head sealing line 211 and the bag tail sealing line 212 are sprayed along the width direction of the packaging material 200. Figure 3The second direction of the packaging material 200 extends; the center sealing line 213 extends along the length of the packaging material 200 and is close to one side of the packaging material 200. For a packaging bag made of the packaging material 200, the bag head sealing line 211 is located at the bag head and is used to close the bag head; the bag tail sealing line 212 is located at the bag head and is used to close the bag tail; the center sealing line 213 extends from the bag head to the bag tail and is used to connect the two sides of the packaging material 200, working together with the bag head sealing line 211 and the bag tail sealing line 212 to form a complete closed structure for the packaging bag.

[0033] The preset markings printed by the inkjet printer 123 can be color blocks 221. On the packaging material 200, the color block 221 is located between the end sealing line 212 of the previous packaging bag and the beginning sealing line 211 of the subsequent packaging bag. Preferably, the color block 221 is located on the extension line of the center line between the end sealing line 212 of the previous packaging bag and the beginning sealing line 211 of the subsequent packaging bag.

[0034] Furthermore, the control device 130 is also configured to set the operating information of the inkjet printer 123 and the glue sprayer 124. For example, the control device 130 can set the size of the color block 221 sprayed by the inkjet printer 123, and can set the glue spraying amount of the glue sprayer 124, the spacing between the end sealing glue line 212 of the previous packaging bag and the beginning sealing glue line 211 of the next packaging bag, and the spacing between the beginning sealing glue line 211 and the end sealing glue line 212 of the same packaging bag, etc. This allows users to precisely control the inkjet and glue spraying parameters according to different packaging needs and material characteristics, thereby ensuring clear markings and reasonable glue line distribution for each packaging bag, improving the aesthetics and sealing of the packaging, while reducing material waste and improving production efficiency and product quality.

[0035] According to one embodiment of the present invention, such as Figure 1 As shown, the spraying apparatus 120 may further include one or more pressure rollers 125, which are arranged side-by-side with the data acquisition roller 121, and have a channel between the pressure rollers 125 and the data acquisition roller 121 for the packaging material 200 to pass through, the gap of which is typically smaller than the thickness of the packaging material 200. For example, in Figure 1 In the illustrated embodiment, the spraying device 120 has two pressure rollers 125, one of which is located upstream of the data acquisition roller 121 and the other is located downstream of the data acquisition roller 121. The packaging material 200 passes through the channel between the pressure roller 125 and the data acquisition roller 121 and is pressed onto the data acquisition roller 121 by the pressure roller 125, thereby ensuring that the data acquisition roller 121 can rotate as the packaging material 200 moves, reducing the possibility of slippage between the data acquisition roller 121 and the packaging material 200.

[0036] According to one embodiment of the present invention, such as Figure 2 As shown, the spraying device 120 may further include a first vision detection unit 126. The first vision detection unit 126 is arranged parallel to the inkjet printer 123 below the transport path of the packaging material 200, and is also located downstream of the inkjet printer 123. The first vision detection unit 126 is configured to recognize a preset mark and output a second signal based on the recognition result. For example, in some embodiments, the first vision detection unit 126 may include an image acquisition module (e.g., an industrial camera) and an image processing module. The image acquisition module can acquire images of the packaging material 200, and the image processing module can analyze and process the images acquired by the image acquisition module to detect the preset mark. When the image acquisition module detects that the inkjet printer 123 fails to spray the preset mark at a predetermined position due to ink shortage or nozzle clogging, it outputs a second signal. Correspondingly, a control device 130 is coupled to the first vision detection unit 126. The control device 130 is configured to control the packaging bag making machine 100 to stop based on the second signal to avoid incorrect packaging in subsequent processes, thereby improving production efficiency and product consistency.

[0037] According to one embodiment of the present invention, such as Figure 2 As shown, the packaging bag making machine 100 may also include an alarm device 140. The control device 130 may be coupled to the first vision detection unit 126 and the alarm device 140 respectively, and is configured to output a third signal based on the second signal. Accordingly, the alarm device 140 is configured to issue an alarm based on the third signal so that operators can promptly detect and troubleshoot the fault.

[0038] Figure 4 A schematic diagram of a portion of the structure of a spraying apparatus 120 according to an embodiment of the present invention is shown. Figure 4 As shown, the spraying device 120 may further include a fixed rod 127 and a sliding bracket 128. The fixed rod 127 is mounted on the frame and extends along a first direction (…). Figure 1The sliding bracket 128 extends in a direction perpendicular to the paper surface. It is mounted on the fixed rod 127 and configured to slide along the fixed rod 127 (in the first direction). Specifically, the spraying device 120 may also include a first fastening knob 1291. The sliding bracket 128 has a through hole 1281 and a threaded hole (not shown in the figure) that communicate with each other. The fixed rod 127 passes through the through hole 1281 and slides within it. The first fastening bolt is screwed into the threaded hole and threadedly engages with it. By loosening the first fastening knob 1291, the user can slide the sliding bracket 128 in the first direction to adjust its position on the fixed rod 127. After adjusting to the appropriate position, tightening the first fastening knob 1291 will fix the sliding bracket 128.

[0039] Furthermore, the inkjet printer 123 and the first vision inspection unit 126 are respectively mounted on the sliding bracket 128 and configured to move along the second direction on the sliding bracket 128. Specifically, two movable sleeves 1282 are slidably fitted on the sliding bracket 128, and both movable sleeves 1282 can slide along the second direction on the sliding bracket 128. The inkjet printer 123 and the first vision inspection unit 126 are respectively mounted on different movable sleeves 1282, and each movable sleeve 1282 is equipped with a second fastening knob 1292. By loosening the second fastening knob 1292, the user can slide the movable sleeve 1282 along the second direction to adjust the position of the inkjet printer 123 or the first vision inspection unit 126; after adjusting to a suitable position, the inkjet printer 123 or the first vision inspection unit 126 can be fixed by tightening the second fixing bolt.

[0040] By adopting the above design, users can conveniently adjust the positions of the inkjet printer 123 and the first vision detection unit 126 according to actual needs, thereby achieving precise adjustment of the preset marking spraying position, which helps to improve the flexibility and adaptability of the spraying device 120 and ensure the accuracy and reliability of the coding and detection operations.

[0041] According to one embodiment of the present invention, such as Figure 1 As shown, the packaging bag making machine 100 may further include a packaging device 150. The packaging device 150 is disposed on the transport path of the packaging material 200 and downstream of the spraying device 120, and is configured to fold the strip-shaped packaging material 200 into a cylindrical shape. Specifically, the packaging device 150 may include a first folding guide 151 and a second folding guide 152, wherein the first folding guide 151 is generally located on one side of the transport path of the packaging material 200 (e.g., ...). Figure 1(on the right side of the packaging material 200), as the packaging material 200 is conveyed, the first folding guide 151 can fold the first side of the packaging material 200 toward the center of the packaging material 200; correspondingly, the second folding guide 152 is located approximately on the other side of the conveying path of the packaging material 200 (e.g., on the right side of the path). Figure 1 As the packaging material 200 is conveyed, the second folding guide rod 152 folds the second side of the packaging material 200 towards the center. It should be noted that in this embodiment, the second folding guide rod 152 is closer to the spraying device 120 than the first folding guide rod 151; in other words, the second folding guide rod 152 is located upstream of the first folding guide rod 151. This arrangement causes the two sides (first side and second side) of the packaging material 200 to be folded sequentially, thereby gradually folding the packaging material 200 into a cylindrical shape during conveyance. Because the packaging material 200 has spaced-apart center seal lines, after the two sides are folded, the two sides of the packaging material 200 are firmly adhered, forming a stable cylindrical structure.

[0042] In addition, the packaging device 150 may also include a steering guide plate 153, which is disposed upstream of the first folding guide rod 151 and the second folding guide rod 152, for adjusting the conveying path and conveying direction of the packaging material 200.

[0043] According to one embodiment of the present invention, such as Figure 1 As shown, the packaging bag making machine 100 may further include a second conveying device 160, which may be a robot, conveyor belt, or other device with material conveying capabilities. For example, in Figure 1 In the illustrated embodiment, the second conveying device 160 is a conveyor belt, the output end of which is connected to the first conveying device 110, and the connection point is located at the packaging device 150. By adopting the above design, the second conveying device 160 can feed the packaged material into the cylindrical packaging material 200 during the process of the packaging device 150 folding the packaging material 200 into a cylindrical shape, thereby completing the bagging of the packaged material.

[0044] According to one embodiment of the present invention, such as Figure 1As shown, the packaging bag making machine 100 may further include a pressing and cutting device 170. The pressing and cutting device 170 is disposed on the transport path of the packaging material 200 and downstream of the packaging device 150. It is configured to recognize a preset mark and, based on the recognition result, press and cut the cylindrical packaging material 200 to complete bag making. Specifically, the pressing and cutting device 170 may include a second vision detection unit 171, a pressing and cutting blade 172, and a driver 173. The structure of the second vision detection unit 171 is basically the same as that of the first vision detection unit 126, and therefore will not be described again here. The second vision detection unit 171 is disposed above the transport path and is configured to recognize the preset mark. The cutting blade 1723 (172) and the driver 173 are located downstream of the second vision detection unit 171. The cutting blade 1723 (172) is positioned above the transmission path, and the driver 173 is connected to the cutting blade 1723 (172) and configured to drive the cutting blade 1723 (172) to press and cut the cylindrical packaging material 200 based on the recognition result of the second vision detection unit 171, thereby forming a packaging bag from the packaging material 200. In some embodiments, the control device 130 is coupled to the second vision detection device and the driver 173, respectively. The driver 173 can be a linear drive device such as a cylinder or an electric push rod. When the second vision detection device recognizes the preset mark, it outputs a fourth signal to the control device 130. Correspondingly, upon receiving the fourth signal, the control device 130 precisely controls the driver 173 to drive the cutting blade 1723 172 downwards, so that the cutting blade 1723 172 cooperates with the cabinet (or workbench, conveyor belt, etc.) to press and cut the packaging material 200. Additionally, the control device 130 can set the size of the color mark block printed by the inkjet printer 123 to be sufficiently small (between 3*3mm and 6*6mm). This ensures that the cutting blade 1723 172 cuts near the center of the color mark or within its range, thus avoiding quality issues such as the cutting blade 1723 172 cutting off the sealing line of a bag or outside its range.

[0045] Figure 5 A schematic diagram of a pressure cutter 1723 tool 172 according to an embodiment of the present invention is shown. Figure 5As shown, the pressure cutter 1723 172 includes a first pressure strip 1721, a second pressure strip 1722, and a cutter 1723, wherein the cutter 1723 is connected between the first pressure strip 1721 and the second pressure strip 1722. When the driver 173 drives the pressure cutter 1723 1722 to press and cut the packaging material 200, the first pressure strip 1721 and the second pressure strip 1722 simultaneously apply pressure to the packaging material 200 to ensure the stability of the packaging material 200 during the cutting process and to firmly adhere the adhesive parts of the packaging material 200; while the cutter 1723 is responsible for precisely cutting the packaging material 200, thereby forming the packaging bag.

[0046] Compared with the prior art, the embodiments of this utility model provide a packaging bag making machine 100. This packaging bag making machine 100 is equipped with a spraying device 120, which can accurately spray preset markings and preset adhesive lines onto the surface of the packaging material 200 according to the real-time transmission status of the packaging material 200. This design eliminates the reliance of the packaging bag making machine 100 on pre-printed colored marking blocks on the packaging material 200, thereby significantly improving the versatility of the packaging material 200, effectively reducing losses and waste caused by changes in packaging size, significantly improving production efficiency, and enabling the packaging bag making machine 100 to flexibly meet the production needs of small batches and multiple varieties.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A packaging bag making machine, characterized in that, It includes a first conveying device, a spraying device, and a control device, wherein, The first conveying device is configured to convey packaging materials along a preset conveying path; The spraying device includes a data acquisition roller, an encoder, a coding machine, and a glue sprayer, wherein, The data acquisition roller is disposed on the transmission path and configured to rotate as the packaging material moves; The encoder is connected to one end of the data acquisition roller and is configured to output a first signal according to the rotation of the data acquisition roller; The inkjet printer and the glue sprayer are arranged opposite each other and located downstream of the data acquisition roller, wherein the inkjet printer is configured to spray a preset mark on one side of the packaging material, and the glue sprayer is configured to spray a preset glue line on the other side of the packaging material; The control device is coupled to the encoder, the inkjet printer, and the glue sprayer respectively, and is configured to control the inkjet printer and the glue sprayer to work according to the first signal.

2. The packaging bag making machine according to claim 1, characterized in that, The spraying device also includes one or more pressure rollers, which are arranged side by side with the data acquisition roller, and there is a channel between the pressure roller and the data acquisition roller for packaging materials to pass through.

3. The packaging bag making machine according to claim 1, characterized in that, The spraying device further includes a first vision detection unit, which is arranged in parallel with the inkjet printer and located downstream of the inkjet printer. The first vision detection unit is configured to recognize the preset mark and output a second signal based on the recognition result.

4. The packaging bag making machine according to claim 3, characterized in that, The packaging bag making machine also includes an alarm device; The control device is coupled to the first visual detection unit and the alarm device respectively, and is configured to output a third signal according to the second signal. The alarm device is configured to issue an alarm according to the third signal.

5. The packaging bag making machine according to claim 3, characterized in that, The spraying device also includes: A fixed rod, configured to extend along a first direction; and A sliding bracket is mounted on the fixed rod and configured to slide along the fixed rod; The inkjet printer and the first vision detection unit are respectively mounted on the sliding bracket and configured to move along the second direction on the sliding bracket.

6. The packaging bag making machine according to claim 5, characterized in that, The sliding bracket is provided with interconnected through holes and threaded holes; The fixing rod passes through the through hole and slides in cooperation with the through hole; The spraying device further includes a first fastening knob, which is screwed into the threaded hole and threadedly engaged with the threaded hole.

7. The packaging bag making machine according to any one of claims 1-6, characterized in that, The pre-set glue lines sprayed by the glue sprayer include the bag head sealing glue line, the bag tail sealing glue line, and the middle sealing glue line; The preset markings printed by the inkjet printer are color blocks.

8. The packaging bag making machine according to any one of claims 1-6, characterized in that, The packaging bag making machine also includes a packaging device and a cutting device, wherein... The packaging device is disposed on the transport path and located downstream of the spraying device, and the packaging device is configured to fold the packaging material into a cylindrical shape; The cutting device is located on the transmission path and downstream of the packaging device. The cutting device is configured to recognize the preset mark and cut the cylindrical packaging material according to the recognition result.

9. The packaging bag making machine according to claim 8, characterized in that, The packaging device includes: A first folding guide rod is configured to fold a first side edge of the packaging material toward the center of the packaging material; and The second folding guide is configured to fold the second side of the packaging material toward the center of the packaging material.

10. The packaging bag making machine according to claim 8, characterized in that, The pressure cutting device includes: A second visual detection unit is disposed above the transmission path and configured to recognize the preset identifier; A cutting blade is positioned above the transport path and downstream of the second vision inspection unit; and A driver, connected to the cutting tool, is configured to drive the cutting tool to cut the cylindrical packaging material according to the recognition result of the second vision detection unit.

11. The packaging bag making machine according to claim 10, characterized in that, The pressure cutting tool includes a first pressure strip, a second pressure strip, and a cutter, wherein the cutter is connected between the first pressure strip and the second pressure strip.

12. The packaging bag making machine according to claim 8, characterized in that, The packaging bag making machine also includes a second conveying device, which is connected to the first conveying device and configured to feed the packaged material into the cylindrical packaging material during the process of the packaging device folding the packaging material into a cylindrical shape.

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