A printing assembly line for express delivery envelopes

Abstract

The application discloses a kind of express waybill printing assembly lines, including frame body, the frame body is provided with multiple groups of material conveying line and is respectively conveyed by its driving device support net, back type hollow rubber membrane layer, express waybill layer and release layer, the material conveying line includes material conveying line one, material conveying line two, material conveying line three, material conveying line four and material conveying line five, the express waybill of the printing assembly line finished product obtained by the application can be conveniently torn and pasted under the action of L type hollow rubber membrane, and is pasted more smoothly and tightly under the action of its support net, the release layer adhered to express waybill layer has certain toughness in use, and is not prone to fracture and sticking phenomenon, further improve the quality and use effect of such express waybill.

Description

Technical Field

[0001] This invention relates to the field of express delivery waybill printing technology, specifically to an express delivery waybill printing production line. Background Technology

[0002] A courier waybill is a document used in the courier industry to record information such as the sender, recipient, product weight, and price during the delivery of goods. With the rapid development of e-commerce, the demand for courier services is increasing year by year. Courier waybills are an important information transmission tool in courier services, facilitating information exchange between customers and courier companies. The courier industry often uses barcode waybills to ensure continuous data output and facilitate management.

[0003] Traditional express waybill printing processes mainly include offset printing, letterpress printing, and screen printing. Although these methods are widely used in various fields, they still have some drawbacks. In the printing process of express waybills, traditional express waybill paper is usually used. Traditional express waybill paper is mostly composed of surface material, back lamination, and back adhesive layer. Usually, its surface material is bonded to the back lamination through the back adhesive layer. After printing, it is inconvenient to tear and stick when using it. Therefore, we propose a new express waybill printing production line to solve the problems existing in the current technology. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings in the prior art and to provide a courier waybill printing production line with a reasonable structural design that allows for easy tearing and pasting during use.

[0005] The technical solution adopted by this invention to solve the above problems is: a printing production line for express delivery labels, including a frame, on which multiple sets of conveyor lines are arranged and conveyed by their driving devices to a support net, a hollow rubber film layer, an express delivery label layer, and a release layer, respectively. The conveyor lines include conveyor line one, conveyor line two, conveyor line three, conveyor line four, and conveyor line five. The support net is output from the center via conveyor line one, and two sets of hollow rubber film layers are output above and below the support net via conveyor lines two and three, respectively. The release layer is output through conveyor line four and conveyor line five respectively. Conveyor line two and conveyor line three are equipped with hot press rollers to clamp and fuse the two sets of hollow rubber film layers with the warp and weft threads of the support net. Conveyor line four is equipped with a cutting component to cut the express delivery label into a square grid to fit the grid of the support net. The frame is also equipped with an adhesive application component for applying adhesive after the square grid label is placed in. The rear end of the frame is equipped with a printing device for printing the initial information of the express delivery label after the adhesive is applied and bonded to the release layer.

[0006] Furthermore: the cutting assembly includes a fixed plate, a cutting blade, a cutting groove, a cylinder, an air pump, and a solenoid valve. The fixed plate is fixed to the frame, the air pump is fixed above the fixed plate, and the solenoid valve and the cylinder are fixed below the fixed plate and connected to the air pump via air pipes. The cutting groove is fixed inside the frame and placed below the cylinder. The cutting blade is fixed to the cylinder and is driven by the cylinder to slide up and down within its cutting groove. The cutting groove is provided with a first guide groove and a second guide groove. The single layer of the express delivery surface passes through the first guide groove, and the U-shaped hollow rubber film and the support mesh, which are composite-bonded by hot-pressing rollers, pass through the second guide groove provided below.

[0007] Furthermore: the glue application assembly includes a glue storage box, which is fixed in the frame and placed on one side of the hollow groove below the support mesh. The glue storage box has a suitable glue outlet at its bottom, and a roller is rotatably installed at the glue outlet. A brush is installed on the roller. A limiting plate is installed on the other side of the glue storage box, and the limiting plate is fitted to the grid-shaped surface. A spacing adjustment component is installed on the limiting plate relative to the glue storage box to adjust the spacing with the limiting plate and to adjust the glue application thickness.

[0008] Furthermore, the frame is also equipped with a pressing roller assembly. The two sets of rollers of the pressing roller assembly are rotatably mounted on the frame and are adapted to fit and adhere to the single layer of the express delivery surface and the release layer below it for pressing the single layer of the express delivery surface, the hollow rubber film layer, the support net and the release layer.

[0009] Furthermore, the frame is also equipped with a cutting blade, which includes a hot-pressing blade for hot-pressing two sets of hollow rubber film layers at the single boundary of adjacent surfaces to form a film that is easy to tear, and a toothed cutting blade for forming intermittent tear lines at the single boundary of adjacent surfaces. Both the hot-pressing blade and the toothed cutting blade are fixed to the matching position of the fixed frame by two sets of blades arranged vertically. The fixed frame is fixed to the frame and its driving device drives the lower fixed frame to slide relative to the upper fixed frame.

[0010] Furthermore, the side of the hot press knife is sharpened to separate the film side.

[0011] Furthermore, the rear end of the frame is also provided with a strip cutting knife assembly, which consists of several annular cutting knives. The annular cutting knives are mounted on a matching roller and driven to rotate by a drive device to cut adjacent sheets into strips.

[0012] Furthermore, the cutting component is adapted to be equipped with multiple sets of cutting blades.

[0013] Furthermore, the feed line is also equipped with a second glue storage box for applying glue to the front support mesh, and a second roller group for pressing the support mesh to facilitate the removal of excess glue.

[0014] Furthermore, the drive device is fixed to the frame with a detachable structure.

[0015] Compared with the prior art, the present invention has the following advantages and effects:

[0016] 1. This invention is a printing production line for express delivery waybills. Based on the specific structure of tear-resistant express delivery waybills, the finished express delivery waybills obtained by this process can be easily torn and pasted under the action of its L-shaped hollow rubber film. At the same time, under the action of its support mesh, the pasting is smoother and firmer. During use, the release layer that is bonded to the express delivery waybill has a certain degree of toughness and is not prone to breakage and adhesion, further improving the quality and use effect of this express delivery waybill.

[0017] 2. The pre-impregnated adhesive support net is more firmly bonded to the hollow rubber membranes on its upper and lower sides by the action of hot-pressing rollers, reducing the occurrence of detachment or breakage during transportation, thereby further improving the operational stability of this device and reducing the probability of failure. At the same time, the rollers on the frame are equipped with a second roller group that is adapted to rotate and adhere to the support net. The adhesive, which has a certain thickness after being impregnated and attached to the support net, is pressed to a uniform thickness and evenly distributed, so that excess adhesive drips into the second adhesive storage box for recycling, reducing raw material waste and saving certain operating costs. Attached Figure Description

[0018] Figure 1-2 This is a schematic diagram of the structure of the express waybill printing device according to an embodiment of the present invention.

[0019] Figure 3-6 This is a partial enlarged view of the express delivery waybill printing device according to an embodiment of the present invention.

[0020] Figure 7-8 This is an enlarged view of the cutting component according to an embodiment of the present invention.

[0021] Figure 9 This is an enlarged view of the installation structure of the hot press knife, toothed cutting knife, and fixing frame according to an embodiment of the present invention.

[0022] Figure 10 This is an enlarged view of the cutting and winding process of the slicing blade assembly in an embodiment of the present invention.

[0023] Figure 11 This is a finished product image of the express delivery waybill according to an embodiment of the present invention.

[0024] Attached Figures: 1. Feeding Line 1; 11. Support Net; 2. Feeding Line 2; 3. Feeding Line 3; 231. Hollow Rubber Film; 4. Feeding Line 4; 41. Single Layer Express Surface; 5. Feeding Line 5; 51. Release Layer; 6. Cutting Component; 61. Fixing Plate; 62. Cutting Blade; 63. Cutting Groove; 631. First Guide Groove; 632. Second Guide Groove; 64. Cylinder; 65. Air Pump; 66. Solenoid Valve; 67. Air Pipe; 7. Glue Application Component; 71. Glue Storage Box; 72. Brush; 73. Limiting Plate; 74. Spacing Adjustment Component; 75. Spring; 8. Printing Equipment; 91. Fixing Frame; 92. Hot Press Blade; 93. Toothed Cutting Blade; 94. Lead Screw Motor; 95. Top Plate; 95. Rubber Pad; 96. Circular Cutting Blade; 100. Frame; 101. Roller; 1011. Mounting Groove; 102. Hot Press Roller; 103. Pressing Roller Group; 104. Partition Plate; 110. Drive Motor. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0026] See Figure 1-2 This embodiment relates to a printing production line for express delivery labels, including a frame 100. The frame 100 is equipped with multiple sets of conveyor lines, which, through their driving devices, respectively convey a support mesh 11, a hollow rubber film layer 231, an express delivery label layer 41, and a release layer 51. The conveyor lines include conveyor line 1, conveyor line 2, conveyor line 3, conveyor line 4, and conveyor line 5. The support mesh 11 is output from the center via conveyor line 1. Two sets of hollow rubber film layers 231 are output above and below the support mesh 11 via conveyor lines 2 and 3, respectively. The express delivery label layer 41 and the release layer 51... The output is carried out through conveyor line 4 and conveyor line 5 respectively. The conveyor line 2 and conveyor line 3 are equipped with hot press rollers 102 for clamping and fusing the two sets of hollow rubber film 231 layers with the warp and weft of the support net 11. The conveyor line 4 is equipped with a cutting component 6 for cutting the express delivery label 41 into a square label that matches the grid of the support net 11. The frame 100 is also equipped with an adhesive application component 7 for applying adhesive after the square label is placed in. The rear end of the frame 100 is equipped with a printing device 8 for printing the initial information of the express delivery label after the adhesive is applied and bonded to the release layer 51.

[0027] Specifically, in this embodiment, all the driving devices are driven by drive motors 110. The multiple sets of conveying lines use roller conveying and are driven by drive motors 110 to rotate rollers 101. The support net 11 is conveyed by drive motors 110 on its first conveying line 1, which drive its rollers 101 to rotate. The two sets of hollow rubber film 231 layers are conveyed by drive motors 110 on the second conveying line 2 and the third conveying line 3, respectively, and are placed on the upper and lower sides of the support net 11. For details, please refer to [link to relevant documentation]. Figure 3-4 As shown, the hollow rubber membrane 231 and the support net 11 are bonded together by hot press rollers 102 provided on their upper and lower sides. The hot press rollers 102 are driven by a drive motor 110 provided on their frame 100 to rotate in the same direction to achieve pressing, which is used to clamp and fuse the two sets of hollow rubber membrane 231 layers with the warp and weft threads of the support net 11.

[0028] Subsequently, the single-layer express delivery sheet 41 is conveyed by the drive motor 110 on the frame 100, which drives the roller 101 to rotate via its conveyor line 4. The single-layer express delivery sheet 41 is cut into square grids by the cutting component 6 above it to fit the grid of the support net 11, and then adhered to the hollow groove of the U-shaped hollow rubber film 231, which is built into the support net 11. For the specific structure of the cutting component 6, please refer to [link to relevant documentation]. Figure 7 As shown, the cutting assembly 6 includes a fixed plate 61, a cutting blade 62, a cutting groove 63, a cylinder 64, an air pump 65, and a solenoid valve 66. The fixed plate 61 is fixed to the frame 100 by bolts. The air pump 65 is fixed above the fixed plate 61. The solenoid valve 66 and the cylinder 64 are fixed below the fixed plate 61 and connected to the air pump 65 via an air pipe 67. The cutting groove 63 is fixed inside the frame 100 by bolts and positioned below the cylinder 64. The cutting blade 62 is fixed to the cylinder 64 and is driven by the cylinder 64 to slide up and down within the cutting groove 63. The cutting groove 63 is provided with a first guide groove 631 and a second guide groove 632. The specific structure of the cutting groove 63 can be found in [reference needed]. Figure 8As shown, the single-layer express delivery faceplate 41 is inserted through the first guide groove 631. The hollow rubber film 231, which is composite-bonded by the hot-pressing roller 102, and the support net 11 are inserted through the second guide groove 632 provided below. The solenoid valve 66, cylinder 64, and air pump 65 are connected to a controller for signal transmission. Under the action of the controller, the cylinder 64 drives the cutting blade 62 to slide downward in the cutting groove 63 through the solenoid valve 66, thus cutting the single-layer express delivery faceplate inserted through the first guide groove 631 below. 41. The cut-out single layer of the express delivery surface 41 is cut to fit the shape. Under the action of the cutter 62, the cut-out single layer of the express delivery surface 41 continues to slide downward in the cut groove 63 and is placed on the hollow rubber membrane 231 and the support net 11 that are inserted into the second guide groove 632 below. This makes the single layer of the express delivery surface 41 adhere to the hollow groove of the hollow rubber membrane 231 and placed on the support net 11. The remaining material of the cut single layer of the express delivery surface 41 is recycled and wound by the drive motor 110 on its feed line 4 driving the roller 101 to rotate.

[0029] After the single layer 41 of the express delivery face sheet is adhered, the material continues to be transported downwards by the rotating roller 101 and is then coated with adhesive by the glue-applying component 7 located below it after the square face sheet is placed in. For details of the structure of the glue-applying component 7, please refer to [link to relevant documentation]. Figure 3-4 As shown, the adhesive application assembly 7 includes an adhesive storage box 71, which is fixed to the frame 100 by bolts and placed on one side of the hollow groove below the support net 11. An adhesive outlet is provided below the adhesive storage box 71, and a roller 101 is rotatably mounted at the outlet. A brush 72 is mounted on the roller 101, which is driven to rotate within the frame 100 by a drive motor 110 mounted on the frame 100. An appropriate amount of adhesive added to the adhesive storage box 71 is dispensed through the outlet. The roller 101, by rotating at its outlet, ensures that the adhesive is evenly applied to the brush 72. Simultaneously, the brush 72 on the roller 101 is in contact with the lower part of the support net 11, and the adhesive applied to the brush 72 is applied to the U-shaped hollow rubber membrane 231 below the support net 11 and its hollow groove by rotation, completing the adhesive application process. Furthermore, see... Figure 5 As shown, a limiting plate 73 is provided on the other side of the glue storage box 71. The limiting plate 73 is fitted to the grid-shaped surface and is adapted to slide on the frame 100. A spacing adjustment component 74 is provided on the limiting plate 73 opposite to the glue storage box 71. The spacing adjustment component 74 is connected to the frame 100 by a threaded connection structure and is connected by a spring 75 provided on its threaded connection to ensure the distance between the limiting plate 73 and the roller 101 with a brush 72. Under the action of the spacing adjustment component 74, different glue coating thicknesses can be achieved by adjusting the spacing to meet different usage requirements.

[0030] After the adhesive is applied, the release layer 51 with a textured structure on one side is conveyed by the feed line 5. The release layer 51 is driven by the fifth drive component on the feed line 5 to be conveyed on the roller 101. The roller 101, which is rotatably set above the single-layer express delivery label 41 and below the release layer 51, is driven by the drive motor 110 on the frame 100 to rotate in the same direction. Under the action of the drive motor 110, the matching texture on the release layer 51 is placed in the hollow groove on the lower side of the support net 11 and adhered to it, thereby completing the pasting process of the express delivery label.

[0031] A suitable printing device 8 is installed on the frame 100. The pasted express delivery label is conveyed by its roller 101 to the printing device 8 for printing the initial express delivery information. After printing, the express delivery label is driven by a drive motor on the frame 100 to rotate the roller 101 inside the frame 100, thus winding and sealing the conveyed express delivery label. For details on the finished express delivery label before winding and sealing, please refer to [reference needed]. Figure 11 As shown, the express delivery labels produced by this printing production line can be easily torn and pasted under the action of its L-shaped hollow rubber film. At the same time, under the action of its support net 11, the pasting is smoother and firmer. During use, the release layer 51 that is attached to the express delivery label layer 41 has a certain toughness and is not prone to breakage and adhesion, further improving the quality and use effect of this express delivery label.

[0032] The frame 100 is also equipped with a pressing roller assembly 103. The two sets of rollers 101 of the pressing roller assembly 103 are rotatably mounted on the frame 100 and are adapted to fit and adhere to the single-layer express delivery surface 41 and the release layer 51 for pressing the single-layer express delivery surface 41, the hollow rubber film 231 layer, the support net 11 and the release layer 51. The pressing roller assembly 103 adopts the same roller 101 structure as described above, which is rotatably mounted on the single-layer express delivery surface 41 and the release layer 51 within the frame 100, making it fit more closely with the single-layer express delivery surface 41 and the release layer 51. The pressing roller assembly 103 is located behind it and is driven by a drive motor 110 mounted on the frame 100 to make the upper and lower rollers rotate in the same direction, pressing the multi-layer structure of the express delivery surface to make it fit more closely, reducing the occurrence of wrinkles and air bubbles, and further improving the operating efficiency and stability of this equipment.

[0033] See Figure 9As shown, the frame is also equipped with a cutting blade, which includes a hot-pressing blade 92 and a toothed cutting blade 93. Two sets of cutting blades are fixed to a matching mounting frame 91 using an up-and-down cutting method. The mounting frame 91 is fixed to the frame 100 and is driven by a drive device that allows the lower mounting frame 91 to slide relative to the upper mounting frame 91. The drive device uses a lead screw motor to drive the mounting frame 91 to slide, thereby causing the cutting blade fixed on the lower mounting frame 91 to move relative to the upper cutting blade to complete the cutting. The hot-pressing blade 92 is heated by a heating device to achieve temperature control. The printed express delivery label is inserted into the mounting frame 91 and placed inside the upper and lower cutting sides. Between the cutting blades, the hot pressing blade 92 can hot press the two sets of hollow rubber film 231 layers at the boundary of adjacent face sheets to form a film that is easy to tear. Subsequently, the toothed cutting blade 93 fixed on the lower fixing frame 91 slides upward under the drive of the lead screw motor, so that it contacts the adapter top plate 95 fixed on the upper fixing frame 91. A rubber pad 951 is provided on the end of the top plate 95 that contacts the toothed cutting blade 93. The toothed cutting blade 93 and its rubber pad 951 adapt to each other and form an intermittent tear line at the boundary of adjacent face sheets at the hot pressing position of the hot pressing blade 92 on the release layer 51. This not only ensures the stable connection of adjacent express face sheets, but also facilitates tearing and pasting.

[0034] The hot pressing knife 92 has a sharpened sidewall that separates the film side, ensuring that adjacent sheets are separated by hot pressing, preventing adhesion and deformation, and reducing the likelihood of edge curling during separation. This ensures the normal operation of subsequent processes and further improves the operational stability of the equipment.

[0035] The rear end of the frame is also equipped with a strip-cutting blade assembly, which consists of several annular cutting blades 96. For details, please refer to... Figure 10 As shown, the annular cutting blade 96 is configured in multiple units mounted on the adapter roller 101 and driven to rotate by a drive device to cut adjacent sheet sheets into strips. The cutting position of the annular cutting blade 96 is the contact position between the transverse frame end of the hollow rubber film 231 and its longitudinal frame. After being cut by the annular cutting blade 96, the edge of the hollow rubber film 231 of the express delivery sheet is L-shaped. The roller 101 is driven to rotate within the frame 100 by a drive motor 110 mounted on the frame 100. The roller 101 drives the annular cutting blade 96 to rotate, thereby cutting the contact position between the transverse frame end of the hollow rubber film 231 and its longitudinal frame, making the edge of the hollow rubber film 231 of the single sheet L-shaped. The L-shaped hollow rubber film causes a certain outer edge between the express delivery sheet layer 41 and the release layer 51. For details, please refer to [link / reference needed]. Figure 11As shown, it facilitates the tearing of the single layer 41 of the express delivery face.

[0036] The cutting component 6 is adapted to be equipped with multiple sets of cutting blades 62, such as Figure 7 As shown, the winding roller 101 is also provided with multiple sets of partitions 104, such as... Figure 10 As shown, the hollow rubber film 231 has multiple sets of hollow grooves arranged laterally. Multiple sets of cutting blades 62 are adapted to the cutting assembly 6 to cut the single layer 41 of the express delivery surface in multiple ways. At the same time, under the action of the cutting blade set, multiple sets of adapted annular cutting blades 96 are installed on the roller 101 to perform adapted cutting. Multiple sets of partitions 104 are provided on the winding roller 101, which can perform multiple windings of the cut express delivery labels, thereby further improving the working efficiency of this device. It can process and print a large number of express delivery labels to meet different usage needs, further increasing its applicability and practicality.

[0037] The conveyor line is also equipped with a second glue storage box 71 for applying glue to the front support net 11, and a second roller group 101 for pressing the support net 11 to facilitate the removal of excess glue. The support net 11 is pre-applied with glue before exiting the conveyor line; see details below. Figure 6 As shown, before discharge, the support net 11 can be fitted with a suitable second glue storage box 71 inside its frame 100. A drive motor 110 is installed on the second glue storage box 71 to drive the bottom roller 101 inside the second glue storage box 71 to rotate. The support net 11 passes through the roller 101 inside the second glue storage box 71 and is conveyed by the roller 101 on the frame 100, so that the support net 11 is immersed in the glue contained in the second glue storage box 71 during the conveying process. The immersed support net 11 continues to be conveyed backward by the rotation of the roller 101 on the frame 101. The support net 11, pre-immersed in glue before discharge, is then conveyed to the next stage. The mesh 11 is more firmly bonded to the hollow rubber film 231 set on its upper and lower sides by the action of the hot pressing roller 102, reducing the occurrence of detachment or breakage during the conveying process, thereby further improving the operational stability of this device and reducing the probability of failure. At the same time, the roller 101 on the frame 100 is equipped with a second roller group adapted to rotate and fit the support mesh 11. After being soaked, the glue attached to the support mesh 11 with a certain thickness is pressed to a uniform thickness and evenly distributed, so that the excess glue drips into the second glue storage box 71 for recycling, reducing the waste of raw materials and saving certain operating costs.

[0038] The drive device is fixed to the frame with a detachable structure, as shown in the figure. Multiple sets of rollers 101 on the frame are each provided with a mounting groove 1011. Multiple drive motors 110 used in the drive device are connected through a connection structure with matching mounting grooves 1011 on their motor shafts. The drive motor 110 seats are fixed to the frame 100 using bolts, thereby driving the rollers 101 to rotate. The detachable structure of the drive device on the frame 100 simplifies the overall structure, reduces maintenance difficulty, and facilitates installation, disassembly, replacement, and position adjustment. It also facilitates daily inspection and subsequent maintenance, meets different usage requirements, and further improves the operational stability of this device.

[0039] The above description is merely illustrative of the invention. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined by the claims, all of which should fall within the protection scope of this invention.

Claims

1. A printing production line for express delivery waybills, characterized in that: The frame includes a frame on which multiple sets of conveying lines are installed and convey the support net, the hollow rubber film layer, the express delivery single layer and the release layer respectively through their driving devices; The aforementioned conveyor lines include conveyor line one, conveyor line two, conveyor line three, conveyor line four, and conveyor line five; The support mesh is output from the middle via a conveyor line; Two sets of hollow rubber membrane layers are output from above and below the support network via conveyor line two and conveyor line three, respectively; The single-layer and release layer of the express delivery surface are output through conveyor line four and conveyor line five, respectively; Hot press rollers are installed on conveyor line 2 and conveyor line 3 to clamp and fuse the two sets of hollow rubber film layers with the warp and weft threads of the support net. The feeding line four is equipped with a cutting component for cutting the single layer of express delivery face sheet into a square grid that fits the support mesh. The frame is also equipped with an adhesive applicator for applying adhesive after the grid-shaped waybill is inserted. The rear end of the frame is equipped with a printing device for printing the initial information of the express waybill after the adhesive is applied and bonded to the release layer.

2. The express waybill printing production line according to claim 1, characterized in that: The cutting assembly includes a fixing plate, a cutting blade, a cutting groove, a cylinder, an air pump, and a solenoid valve; The fixing plate is fixed to the frame, the air pump is fixed above the fixing plate, the solenoid valve and the cylinder are fixed below the fixing plate and connected to the air pump through an air pipe, the cutting groove is fixed inside the frame and placed below the cylinder, and the cutting blade is fixed on the cylinder and driven by the cylinder to slide up and down in its cutting groove. The cutting groove is provided with a first guide groove and a second guide groove. The express delivery surface is single-layered and passes through the first guide groove. The hollow rubber film and the support net, which are compositely bonded by hot press rollers, pass through the second guide groove provided below.

3. The express waybill printing production line according to claim 1, characterized in that: The glue application assembly includes a glue storage box, which is fixed in the frame and placed on one side of the hollow groove below the support mesh. The glue storage box has an appropriate glue outlet at the bottom. A roller is rotatably mounted at the glue outlet, and a brush is mounted on the roller. A limiting plate is mounted on the other side of the glue storage box. The limiting plate is fitted to the grid-shaped surface. A spacing adjustment component is mounted on the limiting plate relative to the glue storage box to adjust the spacing between the limiting plate and the glue coating thickness.

4. The express waybill printing production line according to claim 1, characterized in that: The frame is also equipped with a pressing roller assembly. The two sets of rollers of the pressing roller assembly are rotatably mounted on the frame and are adapted to fit and adhere to the single layer of the express delivery surface and the release layer below it for pressing the single layer of the express delivery surface, the hollow rubber film layer, the support net and the release layer.

5. The express waybill printing production line according to claim 1, characterized in that: The frame is also equipped with a cutting blade, which includes a hot press blade for hot pressing two sets of hollow rubber film layers at the single boundary of adjacent surfaces to form a film that is easy to tear, and a toothed cutting blade for forming an intermittent tear line at the single boundary of adjacent surfaces. Both the hot press blade and the toothed cutting blade are fixed to the adapter position of the fixed frame by two sets of blades arranged vertically. The fixing frame is fixed to the frame body and its driving device drives the lower fixing frame to slide relative to the upper fixing frame.

6. The express waybill printing production line according to claim 1, characterized in that: The hot pressing knife has a side-sharpening edge that separates the film side.

7. The express waybill printing production line according to claim 4, characterized in that: The rear end of the frame is also equipped with a strip-cutting blade assembly, which consists of several annular cutting blades. These annular cutting blades are mounted on an adapter roller and driven to rotate by a drive device to cut adjacent sheets into strips. The cutting assembly is equipped with multiple sets of cutting blades.

8. The express waybill printing production line according to claim 1, characterized in that: The cutting component is adapted to be equipped with multiple sets of cutting blades.

9. A courier waybill printing production line according to claim 1, characterized in that: The feed line is also equipped with a second glue storage box for applying glue to the front support mesh, and a second roller group for pressing the support mesh to facilitate the removal of excess glue.

10. A courier waybill printing production line according to claim 1, characterized in that: The drive device is fixed to the frame with a detachable structure.

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