Paper bag processing humidifying device

Abstract

The utility model discloses a paper bag processing humidification device, including conveyer frame, anti -warping shaping part and humidification spray system, anti -warping shaping part and humidification spray system set up respectively in conveyer frame top, one side of humidification spray system is equipped with anti - splash shield, anti - splash shield detachable installation is in conveyer frame top, the inside of conveyer frame is provided with support piece, the utility model humidification spray system above and below staggered pipeline frame is collocated with 15 degree inclination's upper and lower shower nozzle, combines chain plate micropore, constructs two -sided spray system, and the mist drop evenly covers the positive and negative two sides of base material, and the shower nozzle can also be through the pipe clamp and be adjusted, and the different width base material is adapted, and the accurate control amount prevents the paper sheet stratification or partial fragility problem, and the micropore of chain plate effectively avoids the attachment of redundant mist drop, and then the anti -warping shaping part of tail end is combined with the screw pressure regulating roller height and is adapted to different thickness base material, and the even pressure of pressure roller is applied to stabilize the humidity and eliminate the wrinkle, and the folding edge provides the flat and flexible base material.

Description

Technical Field

[0001] This utility model mainly relates to the field of paper bag processing technology, specifically a paper bag processing humidification device. Background Technology

[0002] Paper bag processing refers to the production process of transforming flat paper (such as kraft paper, white cardboard, coated paper, etc.) into three-dimensional paper bags with loading functions through a series of standardized industrial processes, using paper (such as kraft paper, white cardboard, coated paper, etc.) as the core raw material. In the entire processing chain, the edge folding process is the core process that determines the structural stability and appearance regularity of the paper bag, and directly affects the subsequent bonding effect and the service life of the finished product.

[0003] In the early folding process of paper bags, folding equipment uses mechanical pressure to fold the paper into fixed creases such as side folds and bottom folds according to preset dimensions. However, this process is easily affected by the physical properties of the paper and environmental factors, leading to quality problems. This has spurred the development of specialized humidification devices for folding equipment. These devices replenish the paper with moisture to soften fibers, reduce folding breakage, and decrease fiber elasticity to improve crease stability, ultimately ensuring folding quality and solving paper processing defects in dry environments. Existing humidification devices often use a single-sided spray design, which can easily lead to uneven substrate humidity, causing problems such as cracking and warping during subsequent folding. Furthermore, the spray droplets can easily adhere to the surface of the conveyor equipment, causing water accumulation on the conveyor platform and resulting in localized water accumulation and uneven humidity in the subsequent substrate. Utility Model Content

[0004] This utility model addresses the problem that existing technical solutions are too simplistic by providing a paper bag processing humidification device. This device solves the problem mentioned in the background that the use of single-sided spraying designs often leads to uneven substrate humidity.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A paper bag processing humidification device includes a conveyor frame, an anti-warping shaping component, and a humidification spray system. The anti-warping shaping component and the humidification spray system are respectively disposed above the conveyor frame. A splash guard is provided on one side of the humidification spray system. The splash guard is detachably installed above the conveyor frame. A support component is provided inside the conveyor frame.

[0006] Furthermore, the conveyor frame includes a double gear assembly, a chain, and a chain plate. Two sets of the double gear assembly are provided and rotatably connected to both ends of the inner wall of the conveyor frame. The two sets of double gear assemblies are connected by chain meshing. On one side of the outer wall of the conveyor frame, at the position corresponding to one of the double gear assemblies, a synchronous belt drive device for driving its rotation is provided.

[0007] Furthermore, the chain plate is strip-shaped, with its two ends rotatably connected to the chain via pins, and the surface of the chain plate has a through-hole micro-perforation structure. Multiple chain plates are tightly fitted and spliced ​​together, and are distributed in a ring along the chain.

[0008] Furthermore, the anti-warping shaping component includes a shaping fixing frame and a thickness adjusting frame. The surface of the shaping fixing frame is threaded with a screw. The shaft of the screw passes through a threaded through hole corresponding to the surface of the shaping fixing frame and is rotatably connected to the top of the thickness adjusting frame. A pressure roller is provided between the inner walls of the thickness adjusting frame. The pressure roller is rotatably connected between the inner walls of the thickness adjusting frame through a synchronous belt drive device on one side of the thickness adjusting frame.

[0009] Furthermore, the humidification spray system includes a water tank, pipe mounting brackets, a low-pressure delivery pump, and an air compression assembly. The inlet and outlet of the low-pressure delivery pump are both connected to liquid pipes. The liquid pipe at the inlet is connected to the water tank, and the liquid pipe at the outlet branches to form two liquid branch pipes. The pipe mounting brackets are distributed vertically and are staggered. The two pipe mounting brackets are used to fix the corresponding liquid branch pipes by pipe lifting rings. Each liquid branch pipe has a detachable, openable pipe clamp on one side for fixing the spray head.

[0010] Furthermore, the air compression assembly includes an air compressor, an oil-water separator, and a gas pressure regulating valve. The air outlet of the air compressor is connected to the oil-water separator and the gas pressure regulating valve in sequence through a gas pipeline. The gas pipeline is connected to the corresponding atomizing nozzles through multiple silicone hoses. Multiple nozzles are arranged at equal intervals along the length of the branch pipeline, and the two rows of nozzles are distributed in the vertical direction. The nozzles located at the top are tilted downward at 15°, and the nozzles located at the bottom are tilted upward at 15°.

[0011] Furthermore, the support member is located on one side near the lower nozzle of the humidification spray system and is disposed in the cavity formed inside the chain plate annular transmission. The support member is located below the pressure roller, and the surface of the support member is flat. The chain plate is attached to the surface of the support member.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The humidification spray system of this device uses staggered pipe mounting frames, combined with two sets of nozzles tilted downwards and upwards at 15° respectively, and a through-hole microporous structure on the surface of the chain plate to construct a comprehensive double-sided spray system. During operation, a low-pressure delivery pump delivers water from the water tank to the liquid branch pipes, while the air compression component provides stable pressure to the nozzles, causing the droplets to evenly cover both sides of the substrate with an oblique trajectory. This avoids the problem of uneven humidity on both sides of the substrate caused by traditional single-sided spraying. Furthermore, the nozzle position can be adjusted by opening and closing pipe clamps to adapt to substrates of different widths and precisely control the spray volume. This prevents excessive moisture from causing paper delamination and avoids insufficient humidification from causing local brittleness, ensuring consistent overall humidity and improved flexibility of the substrate, and fundamentally reducing quality problems such as cracking and warping during subsequent folding.

[0013] 2. The conveyor frame of the device can achieve stable circular transmission of the substrate, providing a stable conveying foundation for the humidification and shaping processes. The microporous structure of its chain plate also facilitates the collection of excess mist droplets, preventing excess water from adhering to the conveyor platform and causing local water accumulation and uneven humidity in the continuously conveyed substrate. At the same time, the anti-warping shaping component can precisely adjust the height of the pressure roller through the screw, which can adapt to substrates of different thicknesses after humidification. The pressure roller applies uniform rolling pressure to the substrate under the synchronous belt drive, which can not only stabilize the fiber humidity distribution, but also eliminate potential wrinkles in the substrate, providing a flat, flexible and uniformly humidified substrate for subsequent edge folding.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of a partial internal structure of the conveyor frame of this utility model; Figure 3 This is a schematic diagram of the anti-warping shaping component of this utility model; Figure 4 This is a schematic diagram of the humidification spray system of this utility model.

[0016] Numbering on the map: 1. Conveyor frame; 101. Double gear assembly; 102. Chain; 103. Chain plate; 2. Anti-warping shaping component; 201. Shaping and fixing frame; 202. Thickness adjustment frame; 203. Screw; 204. Pressure roller; 3. Humidification spray system; 301. Water tank; 302. Pipe mounting frame; 303. Low-pressure conveying pump; 304. Spray nozzle; 305. Air compression assembly; 4. Anti-splash cover; 5. Support component. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Please refer to the appendix carefully. Figure 1-4 A paper bag processing humidification device includes a conveyor frame 1, an anti-warping shaping component 2, and a humidification spray system 3. The anti-warping shaping component 2 and the humidification spray system 3 are respectively arranged above the conveyor frame 1. A splash guard 4 is provided on one side of the humidification spray system 3. The splash guard 4 is detachably installed above the conveyor frame 1. A support component 5 is provided inside the conveyor frame 1.

[0020] The conveyor frame 1 includes a double gear assembly 101, a chain 102, and a chain plate 103. Two sets of double gear assemblies 101 are provided and rotatably connected to both ends of the inner wall of the conveyor frame 1. The two sets of double gear assemblies 101 are meshed and connected by the chain 102. On one side of the outer wall of the conveyor frame 1, at the position corresponding to one of the sets of double gear assemblies 101, a synchronous belt drive device for driving its rotation is provided.

[0021] The chain plate 103 is strip-shaped, and its two ends are rotatably connected to the chain 102 by pins. The surface of the chain plate 103 is provided with a through-hole micro-perforation structure. Multiple chain plates 103 are tightly fitted and spliced ​​together, and are distributed in a ring along the chain 102.

[0022] With the above structure, the two ends of the chain plate 103 are rotatably connected to the chain 102 through pins. With the tight splicing of the ring distribution, stable ring transmission can be achieved to ensure the stability of the substrate during the conveying process. The through-hole microporous structure on the surface of the chain plate 103 can be adapted to the oblique spraying of the upper and lower sets of nozzles 304. At the same time, it is convenient to collect excess mist droplets, avoiding the problem of water accumulation on the substrate. The anti-splash cover 4 is made of acrylic material, which can effectively block the mist droplets splashed on both sides when the upper nozzle 304 sprays.

[0023] In this embodiment, as Figure 3As shown, the anti-warping shaping component 2 includes a shaping fixing frame 201 and a thickness adjusting frame 202. A screw 203 is threadedly connected to the surface of the shaping fixing frame 201. The shaft of the screw 203 passes through a threaded through hole corresponding to the surface of the shaping fixing frame 201 and is rotatably connected to the top of the thickness adjusting frame 202. A pressure roller 204 is provided between the inner walls of the thickness adjusting frame 202. The pressure roller 204 is rotatably connected between the inner walls of the thickness adjusting frame 202 through a synchronous belt drive device on one side of the thickness adjusting frame 202.

[0024] With the above structure, the height of the pressure roller 204 can be precisely adjusted by rotating the screw 203, thus achieving height adjustment of the pressure roller 204. The height-adjustable pressure roller 204 can be adapted to substrates of different thicknesses after humidification. By uniform rolling pressure, the fiber humidity is stabilized, wrinkles are eliminated, and the anti-warping and shaping effect is ensured.

[0025] In this embodiment, as Figure 4 As shown, the humidification spray system 3 includes a water tank 301, a pipe mounting bracket 302, a low-pressure delivery pump 303, and an air compression assembly 305. The inlet and outlet of the low-pressure delivery pump 303 are both connected to liquid pipes. The liquid pipe at the inlet is connected to the water tank 301, and the liquid pipe at the outlet branches to form two liquid branch pipes. The pipe mounting brackets 302 are distributed vertically and staggered. The two pipe mounting brackets 302 are respectively fixed to the corresponding liquid branch pipes by pipe lifting rings. Each liquid branch pipe has a detachable, openable pipe clamp on one side for fixing the spray head 304.

[0026] With the above structure, traditional single-sided spraying is prone to uneven humidity on the front and back of the substrate, which can easily lead to cracking and warping of the subsequent folding. The pipe mounting bracket 302 provides the installation base for the upper and lower sets of spray heads 304. The upper and lower spray heads 304 spray in opposite directions, combined with the micropores of the chain plate 103, can achieve all-round uniform humidification of the substrate. The humidity consistency is far superior to that of traditional single-sided spraying, which reduces the quality problems of folding from the root.

[0027] In this embodiment, as Figure 4 As shown, the air compression assembly 305 includes an air compressor, an oil-water separator, and a gas pressure regulating valve. The air outlet of the air compressor is connected to the oil-water separator and the gas pressure regulating valve in sequence through a gas pipeline. The gas pipeline is connected to the corresponding atomizing nozzle 304 through multiple silicone hoses. Multiple nozzles 304 are arranged at equal intervals along the length of the branch pipeline, and the two rows of nozzles 304 are distributed in the vertical direction. The nozzles 304 located above are tilted downward at 15°, and the nozzles 304 located below are tilted upward at 15°.

[0028] Through the above structure, the connection between the multi-nozzle 304 and the silicone hose can evenly cover the width of the substrate. The hose has strong adaptability and is easy to adjust. With the adjustable position structure of the nozzle 304, the position and spacing of the nozzle 304 can be adjusted at any time according to the specifications of the substrate, flexibly optimizing the spraying area and adapting to diverse production scenarios. The upper and lower nozzles 304 are tilted downward and upward by 15° respectively, which allows the droplets to cover the surface of the substrate on the chain plate 103 with an oblique trajectory. This not only allows the droplets to cover the surface of the substrate obliquely, avoiding the water accumulation problem of vertical spraying, but also achieves dynamic and all-round humidification without dead angles as the substrate moves, ensuring uniform humidity on both sides of the substrate.

[0029] In this embodiment, as Figure 2 As shown, the support member 5 is located on one side of the lower nozzle 304 near the humidification spray system 3, and is set in the cavity formed inside the annular transmission of the chain plate 103. The support member 5 is located below the pressure roller 204, and the surface of the support member 5 is flat. The chain plate 103 is attached to the surface of the support member 5.

[0030] Through the above structure, the flat surface of the support member 5 and the chain plate 103 can provide stable support for the substrate. In conjunction with the pressure roller 204, it can form corresponding pressure from the top and bottom, ensuring that the shaping force of the pressure roller 204 is evenly transmitted to the humidified substrate, and improving the anti-warping effect.

[0031] The specific operating procedure of this utility is as follows: When in use, the device is connected between the substrate cutting equipment and the folding equipment of the paper bag processing production line. The water tank 301 on one side of the outer wall of the conveyor frame 1 is filled with deionized clean water (if it is a paper bag for food packaging) or industrial-grade softened water (if it is a paper bag for ordinary packaging) that meets food contact standards, providing a suitable water source for humidifying the substrate.

[0032] During equipment operation, the sheet paper bag substrate (in a flat unfolded state) processed by the cutting equipment is conveyed one by one to the chain plate 103. At this time, a set of double gear assemblies 101 rotates under the drive of the synchronous belt drive device on one side of the outer wall of the conveyor frame 1. Through the chain 102, another set of double gear assemblies 101 is driven to operate synchronously, so that multiple chain plates 103 installed on the surface of the chain 102 form a stable ring transmission, realizing the continuous conveying of the substrate.

[0033] Once the substrate enters the surface of the chain plate 103, the humidification spray system 3 starts. The low-pressure delivery pump 303 delivers water from the water tank 301 at a low pressure of 0.1-0.3 MPa to two liquid branch pipes. Simultaneously, the air compression assembly 305 starts working. The compressed air generated by the air compressor is purified by the oil-water separator and stabilized at a pressure of 0.3-0.5 MPa by the gas pressure regulating valve. It is then distributed to each nozzle 304 through silicone hoses with independent control valves. These control valves can individually adjust the gas flow rate of the corresponding nozzle 304, achieving precise control of the gas-liquid ratio in conjunction with the flow control of the liquid pipeline. The siphon adjustable air atomizing nozzle 304 (SS-1 / 4J-A model) creates negative pressure under the action of high-speed airflow, drawing in the liquid and shearing it into fine droplets, which are then sprayed out evenly in an aerosol state.

[0034] Because the upper and lower nozzles 304 are staggered at 15° and combined with the mesh structure of the chain plate 103, the substrate will be sprayed with mist from both above and below simultaneously when it passes through, so that the moisture can be evenly penetrated to the top and bottom surfaces of the substrate, which not only improves the overall flexibility of the substrate, but also avoids deformation caused by local over-wetting.

[0035] The nozzle 304 is fixed by an openable pipe clamp, which can flexibly adjust the position and angle to adapt to the substrate of paper bag blanks of different widths. This avoids excessive moisture caused by too much nozzle 304, which can lead to excessive moisture in the substrate and cause paper delamination; or insufficient moisture spraying of the substrate, which can lead to local brittleness and cause cracks when folding the edges.

[0036] Furthermore, the large-diameter operating port reserved on the outer wall of the conveyor frame 1 facilitates the corresponding adjustment and calibration of the lower nozzle 304 after the machine is stopped.

[0037] The concave groove at the bottom of the conveyor frame 1 can collect excess droplets that are not absorbed by the substrate and discharge them periodically through the bottom outlet. The outlet is equipped with a removable threaded pipe cap to prevent the workshop floor from becoming damp and affecting production safety.

[0038] The humidified substrate then enters the anti-warping shaping part 2 area and is conveyed to the folding equipment. The thickness adjustment frame 202 adjusts the height of the pressure roller 204 through the screw 203 to match the thickness of the substrate. The pressure roller 204 rotates under the drive of the synchronous belt, applying uniform pressure to the humidified substrate. This not only stabilizes the fiber humidity distribution but also eliminates potential wrinkles through rolling contact, providing a flat and flexible substrate for the subsequent folding process. This fundamentally avoids quality problems such as folding cracks and irregular fold lines caused by the hardness and brittleness of the paper, ensuring the forming accuracy and structural stability of the paper bag after folding.

[0039] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A paper bag processing humidification device, comprising a conveyor frame (1), an anti-warping shaping component (2), and a humidification spray system (3), characterized in that: The anti-warping shaping component (2) and the humidifying spray system (3) are respectively set above the conveyor frame (1). The humidifying spray system (3) is provided with a splash guard (4) on one side. The splash guard (4) is detachably installed above the conveyor frame (1). The conveyor frame (1) is provided with a support component (5). The humidification spray system (3) includes a water tank (301), a pipe mounting bracket (302), a low-pressure delivery pump (303), and an air compression assembly (305). The inlet and outlet of the low-pressure delivery pump (303) are connected to liquid pipes. The liquid pipe at the inlet is connected to the water tank (301), and the liquid pipe at the outlet branches to form two liquid branch pipes. The pipe mounting brackets (302) are distributed in the vertical direction and are staggered. The two pipe mounting brackets (302) are fixed to the corresponding liquid branch pipes by pipe lifting rings. Each liquid branch pipe has a detachable, openable pipe clamp on one side for fixing the nozzle (304).

2. The paper bag processing humidification device according to claim 1, characterized in that: The conveyor frame (1) includes a double gear assembly (101), a chain (102) and a chain plate (103). The double gear assembly (101) is provided in two sets and rotatably connected to both ends of the inner wall of the conveyor frame (1). The two sets of double gear assemblies (101) are connected by the chain (102). On one side of the outer wall of the conveyor frame (1), at the position corresponding to one of the double gear assemblies (101), a synchronous belt drive device for driving its rotation is provided.

3. The paper bag processing humidification device according to claim 2, characterized in that: The chain plate (103) is strip-shaped, and its two ends are rotatably connected to the chain (102) by pins. The surface of the chain plate (103) is provided with a through-hole micro-hole structure. Multiple chain plates (103) are closely fitted and spliced ​​together, and are distributed in a ring along the chain (102).

4. The paper bag processing humidification device according to claim 1, characterized in that: The anti-warping shaping component (2) includes a shaping fixing frame (201) and a thickness adjusting frame (202). The surface of the shaping fixing frame (201) is threaded with a screw (203). The shaft of the screw (203) passes through a threaded through hole corresponding to the surface of the shaping fixing frame (201) and is rotatably connected to the top of the thickness adjusting frame (202). A pressure roller (204) is provided between the inner walls of the thickness adjusting frame (202). The pressure roller (204) is rotatably connected between the inner walls of the thickness adjusting frame (202) through a synchronous belt drive device on one side of the thickness adjusting frame (202).

5. The paper bag processing humidification device according to claim 1, characterized in that: The air compression assembly (305) includes an air compressor, an oil-water separator, and a gas pressure regulating valve. The air outlet of the air compressor is connected to the oil-water separator and the gas pressure regulating valve in sequence through a gas pipeline. The gas pipeline is connected to the corresponding atomizing nozzle (304) through multiple silicone hoses. Multiple nozzles (304) are arranged at equal intervals along the length of the branch pipeline. The two rows of nozzles (304) are distributed in the vertical direction. The nozzles (304) located above are tilted downward at 15°, and the nozzles (304) located below are tilted upward at 15°.

6. A humidification device for paper bag processing according to claim 2, characterized in that: The support member (5) is located on one side of the lower nozzle (304) of the humidification spray system (3) and is set in the cavity formed inside the annular transmission of the chain plate (103). The support member (5) is located below the pressure roller (204) and the surface of the support member (5) is flat. The chain plate (103) is attached to the surface of the support member (5).

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