Glue spraying device of packaging bag manufacturing equipment and packaging bag manufacturing equipment

Abstract

The invention discloses a glue spraying device of packaging bag manufacturing equipment and the packaging bag manufacturing equipment, the glue spraying device comprises a glue spraying assembly arranged on a rack of the packaging bag manufacturing equipment, the glue spraying assembly comprises an adjusting part and a glue spraying part which are arranged on the rack, and the glue spraying part is arranged on the rack in a manner of rotating around a first direction; the glue spraying component is provided with a glue inlet part and a glue spraying part which are arranged at intervals, and the glue inlet part communicates with the glue storage component through a pipeline. Moreover, according to the glue spraying device, the glue spraying part can be adjusted to be switched between the first position and the second position through the adjusting part, and when the glue spraying part is located at the first position, the glue spraying part faces the corresponding sealing part of the base material located at the glue spraying position and sprays glue; when the glue spraying part is located at the second position, the glue spraying part faces the outer side of the rack, the blocked glue spraying part is convenient to clean, residual glue is convenient to wipe, the maintenance difficulty is greatly reduced, the maintained glue spraying part can keep stable glue spraying precision, the structural strength of packaging bag sealing is improved, and the defective rate caused by poor sealing is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the packaging bag production and processing technical field, in particular to a kind of glue spraying device of packaging bag making equipment and packaging bag making equipment. BACKGROUND

[0002] Since the practicability and portability of packaging bag are very high, packaging bag has become an essential commonly used tool in modern society. The structure of packaging bag usually includes a pair of front surface, a pair of side surface and a bottom surface, and can be divided into bottom sealing type and side sealing type according to the sealing method. Among them, whether it is bottom sealing type or side sealing type, in order to ensure the structural strength of the bag body, the appropriate sealing method is usually selected according to the material of the bag body, for example, the packaging bag made of paper is sealed by adhesive, the packaging bag made of non-woven fabric is sealed by hot sealing, of course, the packaging made of non-woven fabric can also be sealed by adhesive.

[0003] In the prior art, when the packaging bag is sealed by adhesive, the packaging bag making equipment usually sets multiple glue spraying heads upstream of the sealing station, and sprays glue on the corresponding sealing part of the base material by using multiple glue spraying heads. However, in the long-term use process, since the glue is relatively dense and has strong viscosity, it is easy to cause the nozzle to be blocked, which affects the quality of the final production of packaging bag due to uneven glue spraying on the corresponding sealing part of the base material. Then, in order to ensure the accuracy of glue spraying, the interval between multiple nozzles and the base material on the conveying component is usually small, and it is very inconvenient to operate whether it is cleaning the nozzle or replacing the nozzle, especially when the glue in the nozzle is seriously blocked and needs to be replaced, the packaging bag making equipment even needs to be stopped to complete the replacement, which greatly affects the efficiency of the packaging bag making equipment in producing packaging bag. SUMMARY

[0004] The purpose of the present application is to solve the technical problem that in the prior art, the packaging bag making equipment sprays glue on the corresponding sealing part of the base material by multiple glue spraying heads, and since the interval between multiple glue spraying heads and the base material on the conveying component is usually small, it is very inconvenient to clean the nozzle or replace the nozzle, which affects the efficiency of the packaging bag making equipment in producing packaging bag.

[0005] To solve the above technical problems, the embodiment of the present application discloses a glue spraying device of packaging bag making equipment, which comprises a glue spraying assembly arranged on the rack of the packaging bag making equipment, and the glue spraying assembly comprises an adjusting component and a glue spraying component arranged on the rack.

[0006] Among them, the glue spraying component is rotatably arranged on the rack in the first direction, and the glue spraying component has a glue inlet part and a glue spraying part arranged at intervals, and the glue inlet part is in pipeline communication with the glue storage component.

[0007] The adjusting component is arranged on one side of the rack and is in transmission connection with the glue spraying component; wherein the adjusting component can drive the glue spraying component to rotate around the first direction, so that the glue spraying part of the glue spraying component is switched between the first position and the second position.

[0008] In the first position, the glue spraying part is directed to the corresponding sealing part of the substrate in the glue spraying position; and in the second position, the glue spraying part is directed to the outside of the rack.

[0009] By using the above technical scheme, the glue spraying device can adjust the glue spraying component through the adjusting component, so that the glue spraying component is rotated around the first direction, and switching between the first position and the second position is realized. When the glue spraying component is in the first position, the glue spraying part is directed to the corresponding sealing part of the substrate in the glue spraying position, so that accurate glue spraying is realized, and the corresponding sealing part of the substrate is reliably connected together in the subsequent sealing process. When the glue spraying component is in the second position, the glue spraying part is directed to the outside of the rack, and the close contact state with the substrate on the conveying component is broken. The operator does not need to work in the narrow internal space of the equipment. Whether it is cleaning the blocked glue spraying part, wiping the residual glue, or replacing the damaged glue spraying component, the operation space is sufficient, and the maintenance difficulty is greatly reduced. Further, since the glue spraying device has relatively convenient maintenance (cleaning and replacement) conditions, the operator can clean the glue spraying component in time and thoroughly, avoiding the problem of nozzle blockage caused by residual glue accumulation, so that the glue spraying precision of the maintained glue spraying component can be maintained, the glue spraying of the sealing part of the substrate is uniform, and the structural strength of the packaging bag sealing is improved, and the defective rate caused by poor sealing is reduced.

[0010] Moreover, compared with the existing technology, the replacement of the blocked glue spraying head must be stopped. The glue spraying device can switch the position of the glue spraying component by rotating, quickly complete the cleaning or replacement operation, greatly shorten the downtime caused by the failure of the glue spraying component, and significantly improve the production efficiency of the packaging bag making equipment.

[0011] In addition, the glue spraying device can switch the glue spraying component to the second position, facilitate the replacement of different types of glue spraying parts, meet the glue spraying needs of different specifications of packaging bags, and enhance the application range of the packaging bag making equipment.

[0012] The embodiment of the application discloses a glue spraying device of a packaging bag making equipment. A rotating shaft is rotatably arranged on a rack. The axis of the rotating shaft extends along a first direction and is perpendicular to the conveying direction of a substrate. A glue spraying component is mounted on the rotating shaft.

[0013] Moreover, the adjusting component includes an adjusting driving element arranged on the rack and an intermediate transmission element arranged on the output end of the adjusting driving element. The intermediate transmission element is in transmission connection with one end of the rotating shaft.

[0014] The adjusting driving member drives the intermediate transmission member to drive the rotating shaft to rotate in the first direction, and switch between the first position and the second position.

[0015] The glue spraying component is arranged on the rotating shaft of the rack, the intermediate transmission member is driven by the adjusting driving member to drive the rotating shaft to rotate, and the switching between the first position and the second position of the glue spraying component is realized. Compared with the adjusting component directly driving the glue spraying component to rotate, the assembly stability of the glue spraying component is improved, the risk of deviation and shaking of the glue spraying component during rotation is reduced, the glue spraying component can accurately align the sealing part of the base material when the glue spraying component is in the first position, the position accuracy of glue spraying is ensured, and the glue spraying component can stably stay in the maintenance position facing the outside of the rack when switched to the second position, so that accidental displacement of the glue spraying component during maintenance is avoided.

[0016] The adjusting driving member is arranged as a telescopic driving cylinder, and the telescopic driving cylinder is fixed to one side of the outer wall of the rack.

[0017] The intermediate transmission member is arranged as a connecting rod, one end of the connecting rod is hinged to the output end of the telescopic driving cylinder, and the other end is fixedly connected to the corresponding end of the rotating shaft.

[0018] The telescopic driving cylinder is fixed to one side of the outer wall of the rack instead of the inside of the rack of the packaging bag manufacturing equipment, so that the adjusting driving member does not occupy the operation space of the base material transportation and glue spraying, the glue liquid splashing to contaminate the adjusting driving member is prevented, and the operation stability of the driving member is ensured. The connecting rod only needs to connect the output end of the driving cylinder and the end of the rotating shaft, the structure is compact, and the operation of other components of the packaging bag manufacturing equipment is not interfered, so that the internal layout of the entire packaging bag manufacturing equipment is more reasonable.

[0019] The glue spraying component includes a glue spraying driving member and a glue spraying shell. The glue spraying shell includes a transmission cavity and a glue containing cavity. The glue spraying transmission component is arranged in the transmission cavity, and the glue spraying driving member is in transmission connection with the glue spraying transmission component. The glue containing cavity contains glue liquid, has a glue inlet and a glue spraying part. The glue inlet is a glue inlet joint arranged on the side wall of the glue containing cavity and in communication with the glue storage component pipeline. The glue spraying part is a plurality of glue spraying holes arranged on the side wall of the glue containing cavity away from the transmission cavity.

[0020] Furthermore, a plurality of hole sealing members corresponding to the plurality of glue spraying holes are arranged between the transmission cavity and the glue containing cavity. One end of each hole sealing member is detachably abutted to the inner circumferential side wall of the corresponding glue spraying hole, the other end of each hole sealing member extends out of the glue containing cavity and extends into the transmission cavity, and the part of each hole sealing member in the transmission cavity is in transmission connection with the glue spraying transmission component.

[0021] When the glue injection part is in the first position, the glue injection driving member drives the glue injection transmission part to separate one end of the plurality of hole sealing members from the corresponding glue injection holes, and glue in the glue cavity is injected from the plurality of glue injection holes.

[0022] By adopting the technical scheme, the glue injection device drives the plurality of hole sealing members to separate from the corresponding glue injection holes through the glue injection driving member and the glue injection transmission part, and the glue in the glue cavity is injected from the glue injection holes; in the non-glue injection state, one end of the hole sealing member abuts against the inner circumferential sidewall of the corresponding glue injection hole, thereby sealing and plugging the glue injection hole, avoiding leakage of the glue, reducing waste of the glue, preventing the leaked glue from polluting other components or substrates of the packaging bag manufacturing equipment, and ensuring the cleanliness of the packaging bag production environment.

[0023] In addition, the hole sealing member in the glue injection device abuts against the glue injection hole in the normal state, which can block the contact between air and the glue in the glue cavity, and slow down the drying speed of the glue at the glue injection hole. Meanwhile, the process of driving the hole sealing member to separate from or abut against the glue injection hole by the glue injection driving member is equivalent to "mechanical scraping and cleaning" of the inner circumferential sidewall of the glue injection hole, which can scrape off the residual glue attached to the inner circumferential sidewall of the glue injection hole, greatly reduce the probability of plugging of the glue injection hole, ensure uniformity of the glue injected from the plurality of glue injection holes, and ensure stability of the packaging bag sealing quality.

[0024] The embodiments of the present application disclose a glue injection device of a packaging bag manufacturing equipment, each hole sealing member is provided with a sealing needle extending from the glue cavity to the transmission cavity, one end of the sealing needle abuts against the inner circumferential sidewall of the corresponding glue injection hole, and the other end of the sealing needle abuts against a pre-tightening member on one side of the transmission cavity away from the glue cavity, and the pre-tightening member pushes the sealing needle towards the glue cavity.

[0025] In addition, the part of the sealing needle in the transmission cavity in the axial direction is provided with a transmission part, and the transmission part is in transmission connection with the glue injection transmission part.

[0026] By adopting the technical scheme, the hole sealing member is provided as the sealing needle, and the pre-tightening member continuously pushes the sealing needle towards the glue cavity, so that one end of the sealing needle always abuts against the inner circumferential sidewall of the glue injection hole, forming a relatively reliable seal, even if there is pressure fluctuation of the glue in the glue cavity, the glue can also be prevented from leaking from the glue injection hole.

[0027] The embodiments of the present application disclose a glue injection device of a packaging bag manufacturing equipment, the glue injection driving member is provided as a glue injection driving motor, the glue injection transmission part includes a cam shaft extending in a first direction and having one end in transmission connection with the glue injection driving motor, and a plurality of swing arms corresponding to the plurality of sealing needles and swingable in the transmission cavity in the first direction, a plurality of cams corresponding to the plurality of swing arms are sleeved on the cam shaft, and one end of each swing arm is in sliding abutment with the corresponding cam.

[0028] And, the part of each sealing needle in the transmission cavity is fixedly sleeved with a sleeve, and the sleeve is transmissionally connected with the other end of the corresponding swing arm as the transmission part of the sealing needle.

[0029] Wherein, the glue spraying driving motor drives the camshaft to rotate, and the plurality of cams on the camshaft push against one end of the corresponding swing arm, and the swing arm swings in the first direction, and the other end of the swing arm moves the corresponding sealing needle away from the corresponding glue spraying hole in the axial direction through the sleeve linkage.

[0030] And, the first direction, the transportation direction of the base material, and the axial direction of the sealing needle are perpendicular to each other.

[0031] By adopting the above technical scheme, the glue spraying driving motor can more accurately control the speed and angle of rotation of the camshaft, and each rotation of the camshaft can drive the sealing needle to realize the cycle of moving away from the glue spraying hole (glue spraying) and resetting the sealing through the swing arm, that is, the glue spraying is accurately controlled, and then the transportation speed of the base material on the packaging bag manufacturing equipment is matched, for example, the "spraying while walking and sealing (glue spraying hole) while stopping" on the high-speed transported base material is realized, and the problems of glue spraying misalignment, missed spraying and the like caused by the response lag or untimely starting and stopping of the traditional pneumatic drive are avoided.

[0032] In addition, by replacing the cams with different profiles on the camshaft (such as changing the lift height and lift time of the cam), the axial movement distance (that is, the opening size of the glue spraying hole) and the opening time of the sealing needle can be flexibly adjusted, and then the glue spraying amount and spraying time can be controlled, for example, for the requirement of paper packaging bags needing a small amount of glue for rapid sealing, a cam with small lift and short lift time can be selected; for the requirement of non-woven fabric packaging bags needing more glue for sealing, a cam with large lift and long lift time can be selected. At the same time, the speed regulation of the glue spraying driving motor can also be matched with the cam structure to realize various modes such as "high speed short glue spraying" and "low speed long glue spraying", without the need to replace the main body of the glue spraying component to adapt to the glue spraying requirements of packaging bags of different materials and different specifications, and the application range of the glue spraying device is greatly improved.

[0033] The embodiment of the application discloses a glue spraying device of a packaging bag manufacturing equipment, and the glue spraying device further comprises a cleaning assembly arranged on the rack and spaced apart from the glue spraying assembly in the transportation direction of the base material.

[0034] Wherein, the cleaning assembly comprises a mounting seat arranged on the rack, and a cleaning nozzle mounted on the mounting seat, one end of the cleaning nozzle faces the glue spraying part of the glue spraying component in the second position, and the other end of the cleaning nozzle is in communication with the liquid storage component pipeline.

[0035] Using the above technical solution, when it is necessary to clean the glue spraying part of the glue spraying component, the adjusting component moves the glue spraying component to the second position. The cleaning nozzle is precisely aimed at the glue spraying part in the second position (maintenance position). After the glue spraying component is switched to the maintenance position, no additional position adjustment is required. The cleaning nozzle can directly spray the cleaning liquid onto multiple glue spraying holes and the surrounding area, eliminating the need for manual wiping and cleaning by operators. This efficiently cleans the glue spraying component, reduces the risk of blockage caused by residue accumulation in the glue spraying holes, ensures the uniformity and stability of subsequent glue spraying, and reduces the defect rate caused by blockage.

[0036] Furthermore, compared to traditional manual cleaning, which may result in scratches on the spray nozzles or deformation of the sealing pins due to improper operation, the cleaning nozzle provides gentle cleaning by steadily spraying cleaning fluid with uniform force, without causing mechanical damage to the spray nozzle. At the same time, timely cleaning prevents adhesive from adhering to the inner wall of the spray nozzle and the tip of the sealing pin for extended periods, reducing corrosion and wear on the spray nozzle components. This is especially beneficial for protecting the delicate spray nozzle and sealing pin structures, significantly extending the overall service life of the spray nozzle components.

[0037] Therefore, this glue spraying device, through the coordinated operation of the glue spraying component and the cleaning component, allows the glue spraying component to be rotated from the first position (glue spraying position) to the second position (maintenance position) by adjusting the component, and the cleaning component can be started immediately for cleaning. After cleaning is completed, it can be quickly rotated back to the glue spraying position to continue operation, forming a continuous maintenance process. There is no need to make additional adjustments to other components on the packaging bag making equipment, further reducing downtime and improving the efficiency of packaging bag production.

[0038] The present invention discloses a glue spraying device for a packaging bag making equipment, wherein the cleaning component further includes a cleaning drive component, and a mounting base is disposed at the output end of the cleaning drive component.

[0039] Furthermore, a sealing cover is provided on the side of the mounting base near the adhesive spraying assembly, and the side of the sealing cover facing away from the cleaning nozzle has an opening.

[0040] The adjusting component adjusts the adhesive spraying component to the second position, the cleaning drive component drives the mounting base and moves the cleaning nozzle and the sealing cover toward the adhesive spraying part, the opening edge of the sealing cover abuts against the peripheral wall of the adhesive spraying part, and the cleaning nozzle sprays cleaning liquid toward the adhesive spraying part.

[0041] By adopting the above technical solution, the cleaning drive unit moves the mounting base toward the adhesive spraying component in the second position, so that the opening edge of the sealing cover on the mounting base is tightly against the peripheral wall of the adhesive spraying part, forming a closed cleaning space. When the cleaning nozzle sprays cleaning liquid in the sealed space, it can prevent the cleaning liquid from splashing and flowing away, allowing the cleaning liquid to fully wet the adhesive spraying hole and the surrounding area, prolonging the contact time between the cleaning liquid and the residual adhesive, and greatly improving the adhesive dissolution efficiency.

[0042] Furthermore, the sealing effect of the sealing cover can completely prevent the cleaning liquid from splashing onto other parts of the packaging bag making equipment (such as substrate transport parts, glue spraying drive motor, camshaft, etc.), preventing the cleaning liquid from corroding the metal parts of the equipment or contaminating the substrate to be processed later.

[0043] The present invention discloses a glue spraying device for a packaging bag manufacturing equipment, wherein the opening edge of the sealing cover is adapted to the peripheral edge of the glue spraying part, and the sealing cover is capable of elastic deformation.

[0044] Using the above technical solution, the opening edge precisely matches the peripheral edge of the adhesive spraying section, ensuring that the sealing cover completely covers the area to be cleaned. Simultaneously, the elastic deformation characteristics of the sealing cover allow it to adaptively deform to conform to the contour of the peripheral wall of the adhesive spraying section under the thrust of the cleaning drive component. Even if there are slight processing errors, surface wear, or minor deviations during installation on the peripheral side of the adhesive spraying section, the elastic sealing cover can compensate for these gaps through deformation, forming a tight seal without dead angles and preventing leakage of cleaning fluid during the cleaning process.

[0045] Furthermore, compared to rigid sealing covers, which are prone to damage such as scratches on the glue spraying holes and displacement of the sealing needles due to impact or long-term friction when in contact with the glue spraying part, elastic sealing covers can buffer the contact pressure through their own deformation during the bonding process, forming a flexible fit. This ensures the sealing effect while avoiding mechanical damage to the surface of the glue spraying part and precision components, effectively extending the service life of the glue spraying parts.

[0046] The present invention discloses a glue spraying device for a packaging bag making equipment, wherein the cleaning drive component includes a cleaning drive motor mounted on the frame.

[0047] Furthermore, the mounting base includes a mounting frame and a fixing plate located on the side of the mounting frame near the adhesive spraying component and fixedly connected to the mounting frame. The mounting frame is fixedly connected to the output end of the cleaning drive motor, and the cleaning nozzle is fixedly mounted on the mounting frame.

[0048] The sealing cover is located on the side of the fixing plate away from the cleaning nozzle. The fixing plate has a through hole that aligns with the cleaning nozzle and matches the outer periphery of the spraying part.

[0049] The fixing plate is also provided with a drain outlet that penetrates the fixing plate, and a drain connector connected to the drain pipe is provided on the side of the drain outlet away from the sealing cover.

[0050] By adopting the above technical solution, the cleaning drive motor achieves precise adjustment of speed and stroke through servo control, which can accurately control the feed distance and moving speed of the mounting base, ensuring that the sealing cover fits the adhesive spraying part smoothly and accurately, avoiding damage to the sealing cover due to excessive feed or affecting the sealing effect due to insufficient feed.

[0051] Furthermore, the cleaning nozzle is mounted on the mounting bracket, with the through holes on the fixing plate aligned with the nozzle and adapted to the outer contour of the adhesive spraying section. This guides the cleaning fluid sprayed from the nozzle precisely through the through holes, concentrating it on the area to be cleaned and preventing the cleaning fluid from spreading and leaking. The drain outlet on the fixing plate is connected to a drain pipe via a drain connector. Within the enclosed cleaning space formed by the sealed cover, waste liquid after dissolving the adhesive can be quickly collected through the drain outlet and discharged to the outside via the drain connector and pipe, preventing waste liquid from contaminating the packaging bag manufacturing equipment and the production environment.

[0052] The present invention discloses a glue spraying device for a packaging bag making equipment. The cleaning nozzle has a main connector and an auxiliary connector. The main connector is connected to a water supply pipeline, and the auxiliary connector is connected to an air supply pipeline.

[0053] Using the above technical solution, the cleaning fluid introduced into the main connector can dissolve the dried adhesive in the spray nozzle, forming a wetting effect on stubborn residues; the gas introduced into the auxiliary connector can form a high-pressure airflow, which on the one hand can enhance the spray impact of the cleaning fluid, help to atomize the cleaning fluid, and allow the cleaning fluid to penetrate deeper into the gaps of the spray nozzle, thus improving the cleaning ability; on the other hand, after cleaning with the cleaning fluid, the high-pressure airflow can be used to blow away and quickly dry the residual liquid and tiny adhesive residue on the surface of the spray nozzle and in the spray nozzle, avoiding secondary adhesion caused by cleaning fluid residue, and further preventing the potential for subsequent blockage of the spray nozzle.

[0054] The present invention discloses a packaging bag manufacturing equipment, including a frame and a hub disposed on the frame. The substrate is transported along the outer surface of the hub. An opening device and a closing device are sequentially disposed on the outer periphery of the hub along the transport direction of the substrate. The equipment also includes a glue spraying device of any of the above-mentioned packaging bag manufacturing equipment.

[0055] Furthermore, on the outer periphery of the wheel hub, along the transport direction of the substrate, the adhesive spraying device is located between the bottom opening device and the bottom closing device.

[0056] Using the above technical solution, the substrate is transported along the outer surface of the hub. The hub provides stable support and guidance for the substrate, preventing wrinkles and shifting during transport. The glue spraying device is located after the bottom opening device and before the bottom closing device. After the substrate is unfolded by the bottom opening device to form the circumference and bottom of the bag, the glue spraying device can immediately and precisely spray glue onto the preset sealing area. Subsequently, the bottom closing device follows to complete the bag sealing. Furthermore, the glue spraying component of the glue spraying device can be adjusted to a first and a second position, greatly facilitating the cleaning and replacement of the glue spraying component, reducing downtime of the packaging bag making equipment due to glue spraying component failure, and improving the operational reliability of the packaging bag making equipment.

[0057] The beneficial effects of this invention are as follows:

[0058] This invention discloses a glue spraying device for a packaging bag manufacturing equipment. This device includes a glue spraying assembly mounted on the frame of the packaging bag manufacturing equipment. The glue spraying assembly includes an adjusting component and a glue spraying component mounted on the frame. The glue spraying component is rotatably mounted on the frame in a first direction and has an intermittently spaced glue inlet and glue spraying section. The glue inlet is connected to a glue storage component via a pipeline. Furthermore, this glue spraying device allows the adjusting component to adjust the glue spraying component, enabling it to rotate in the first direction and switch between a first position and a second position. In the first position, the glue spraying section faces the corresponding sealing portion of the substrate at the spraying position, thus accurately spraying glue and ensuring that the corresponding sealing portion of the substrate is securely connected in subsequent sealing processes. In the second position, the glue spraying section faces outward from the frame, avoiding close contact with the substrate on the transport component. This provides ample operating space for cleaning clogged glue spraying sections, wiping residual glue, or replacing damaged glue spraying components, greatly reducing maintenance difficulty. Furthermore, because this adhesive spraying device has relatively convenient maintenance (cleaning and replacement) conditions, it can clean the adhesive spraying parts in a timely and thorough manner, avoiding nozzle clogging caused by adhesive residue accumulation. This allows the maintained adhesive spraying parts to maintain stable adhesive spraying accuracy, ensuring uniform adhesive spraying at the substrate sealing area, thereby improving the structural strength of the packaging bag seal and reducing the defect rate caused by poor sealing.

[0059] Furthermore, the adhesive spraying device also includes a cleaning component located on the frame and spaced apart from the adhesive spraying assembly in the substrate transport direction. The cleaning component includes a mounting base on the frame and a cleaning nozzle mounted on the mounting base. One end of the cleaning nozzle faces the adhesive spraying section of the adhesive spraying component in the second position, and the other end is connected to a liquid storage component pipeline. Attached Figure Description

[0060] Figure 1 A schematic diagram of the adhesive spraying device for a packaging bag manufacturing equipment is provided for an embodiment of the present invention;

[0061] Figure 2 A schematic diagram of the structure of the glue spraying component of the glue spraying device for a packaging bag making equipment is provided for an embodiment of the present invention;

[0062] Figure 3 A schematic diagram of the adhesive spraying transmission component and sealing component of the adhesive spraying device of the packaging bag making equipment provided in this embodiment of the invention;

[0063] Figure 4 Another schematic diagram of the adhesive spraying device for packaging bag making equipment is provided for an embodiment of the present invention;

[0064] Figure 5 A schematic diagram of the cleaning component of the adhesive spraying device for a packaging bag making equipment is provided for an embodiment of the present invention;

[0065] Figure 6 A schematic diagram of the cleaning nozzle of the cleaning component of the adhesive spraying device for a packaging bag making equipment is provided for an embodiment of the present invention.

[0066] Figure 7 A schematic diagram of the fixing plate of the cleaning component of the adhesive spraying device for a packaging bag making equipment is provided for an embodiment of the present invention;

[0067] Figure 8 This invention provides an assembly diagram of the frame, glue spraying device, and wheel hub of a packaging bag manufacturing equipment.

[0068] Explanation of reference numerals in the attached figures:

[0069] 10. Glue spraying device;

[0070] 100. Adhesive spraying assembly;

[0071] 110. Adjusting component; 111. Adjusting drive component; 1110. Telescopic drive cylinder; 112. Intermediate transmission component; 1120. Connecting rod;

[0072] 120. Glue spraying component; 1201. Glue inlet; 1202. Glue spraying section;

[0073] 121. Glue spraying drive component; 1210. Glue spraying drive motor;

[0074] 122. Glue spray housing; 1221. First housing; 1222. Second housing; 1223. Glue inlet connector; 1224. Glue spray hole;

[0075] 123. Glue spraying transmission components; 1231. Camshaft; 1232. Swing arm;

[0076] 124. Sealing component; 1240. Sealing pin; 1241. Sleeve;

[0077] 125. Preload; 126. Sealing ring; 127. Photoelectric sensor;

[0078] 200. Cleaning components;

[0079] 210. Mounting base; 211. Mounting bracket; 212. Fixing plate; 2121. Through hole; 2122. Drain outlet; 2123. Drain connector;

[0080] 220. Cleaning nozzle; 221. Main connector; 222. Auxiliary connector;

[0081] 230. Clean the drive components; 231. Clean the drive motor;

[0082] 240. Sealing cover;

[0083] 20. Frame; 30. Shaft; 40. Hub. Detailed Implementation

[0084] As mentioned in the background section, packaging bag manufacturing equipment sprays adhesive onto the corresponding sealing parts of the substrate using multiple spray nozzles. Since the distance between the multiple spray nozzles and the substrate on the transport component is usually small, it is very inconvenient to clean or replace the spray nozzles, which in turn affects the efficiency of the packaging bag manufacturing equipment in producing packaging bags.

[0085] To address this, the present invention discloses a glue spraying device for a packaging bag manufacturing equipment. This device includes a glue spraying assembly mounted on the frame of the packaging bag manufacturing equipment. The glue spraying assembly includes an adjusting component and a glue spraying component mounted on the frame. The glue spraying component is rotatably mounted on the frame in a first direction and has an intermittently spaced glue inlet and glue spraying section. The glue inlet is connected to a glue storage component via a pipeline. Furthermore, this glue spraying device allows the adjusting component to switch between a first position and a second position. Moreover, because the position of the glue spraying component can be adjusted, this device provides convenient maintenance (cleaning and replacement) conditions, enabling timely and thorough cleaning of the glue spraying component. This avoids nozzle clogging caused by glue residue accumulation, ensuring that the glue spraying component maintains stable spraying accuracy after maintenance. This ensures uniform glue spraying at the substrate sealing area, thereby improving the structural strength of the packaging bag seal and reducing the defect rate due to poor sealing.

[0086] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0087] like Figure 1 As shown, an embodiment of the present invention provides a glue spraying device 10 for a packaging bag manufacturing equipment. This glue spraying device 10 can be used in equipment for manufacturing bottom-sealed packaging bags to spray glue on the bottom sealing part of the packaging bag, and can also be used in equipment for manufacturing side-sealed packaging bags to spray glue on the side sealing part of the packaging bag. This embodiment does not limit it to this only.

[0088] Specifically, the glue spraying device 10 includes a frame 20 disposed on the packaging bag making equipment (see...). Figure 8 The glue spraying assembly 100 on the frame 20 includes an adjustment component 110 and a glue spraying component 120 disposed on the frame 20. The glue spraying component 120 is rotatably disposed on the frame 20 about a first direction, and has a glue inlet 1201 and a glue spraying part 1202 disposed at intervals. The glue inlet 1201 is connected to the glue storage component pipeline.

[0089] An adjustment component 110 is disposed on one side of the frame 20 and is connected to the glue spraying component 120 in a transmission manner; wherein, the adjustment component 110 can drive the glue spraying component 120 to rotate around a first direction, so that the glue spraying part 1202 of the glue spraying component 120 switches between a first position and a second position.

[0090] In the first position, the adhesive spraying unit 1202 faces the corresponding sealing part of the substrate at the spraying position, thereby accurately spraying adhesive and ensuring that the corresponding sealing part of the substrate is reliably connected together in the subsequent sealing process. When the adhesive spraying unit 120 is in the second position, its adhesive spraying unit 1202 faces outward from the frame 20, and is no longer in close contact with the substrate on the transport component. Whether cleaning a clogged adhesive spraying unit 1202, wiping off residual adhesive, or replacing a damaged adhesive spraying unit 120, there is ample operating space, greatly reducing maintenance difficulty. Being no longer in close contact with the substrate on the transport component, operators do not need to work in the confined space inside the equipment. Whether cleaning a clogged adhesive spraying unit 1202, wiping off residual adhesive, or replacing a damaged adhesive spraying unit 120, there is ample operating space, greatly reducing maintenance difficulty. Furthermore, since this glue spraying device 10 has relatively convenient maintenance (cleaning and replacement) conditions, operators can clean the glue spraying component 120 in a timely and thorough manner, avoiding nozzle clogging caused by glue residue accumulation. This allows the glue spraying component 120 to maintain stable glue spraying accuracy after maintenance, ensuring uniform glue spraying at the substrate sealing area, thereby improving the structural strength of the packaging bag seal and reducing the defect rate caused by poor sealing.

[0091] Furthermore, compared to the existing technology where replacing a clogged glue spray head requires machine shutdown, this glue spraying device 10 can quickly complete the cleaning or replacement operation by rotating and switching the position of the glue spraying component 120, greatly shortening the downtime caused by the failure of the glue spraying component 120 and significantly improving the production efficiency of the packaging bag making equipment.

[0092] Of course, when the glue spraying device 10 switches the glue spraying component 120 to the second position, it also makes it convenient for operators to change different types of glue spraying parts 1202 to meet the glue spraying needs of different specifications of packaging bags, thus enhancing the applicability of the packaging bag making equipment.

[0093] In this embodiment, a rotating shaft 30 is rotatably mounted on the frame 20. The axis of the rotating shaft 30 extends along a first direction and is perpendicular to the transport direction of the substrate. The glue spraying component 120 is mounted on the rotating shaft 30.

[0094] In this embodiment, the glue spraying component 120 is mounted on the rotating shaft 30 of the frame 20. The rotation of the rotating shaft 30 drives the glue spraying component 120 to switch between a first position and a second position. Compared with the adjustment component 110 directly driving the glue spraying component 120 to rotate, this improves the assembly stability of the glue spraying component 120 and reduces the risk of the glue spraying component 120 shifting or shaking during rotation. This ensures that the glue spraying component 1202 can accurately align with the sealing part of the substrate in the first position, ensuring the positional accuracy of the glue spraying. When switched to the second position, it can also stably stay in the maintenance position facing the outside of the frame 20, avoiding accidental displacement of the glue spraying component 120 during maintenance.

[0095] Furthermore, the adjustment component 110 may include an adjustment drive component 111 disposed on the frame 20, and an intermediate transmission component 112 disposed at the output end of the adjustment drive component 111, wherein the intermediate transmission component 112 is connected to one end of the rotating shaft 30 for transmission.

[0096] The adjusting drive component 111 drives the intermediate transmission component 112 and links the rotating shaft 30 to drive the glue spraying component 120 to rotate around the first direction and switch between the first position and the second position.

[0097] Specifically, the adjustment drive component 111 is configured as a telescopic drive cylinder 1110, which is fixed to one side of the outer wall of the frame 20.

[0098] The intermediate transmission component 112 is configured as a connecting rod 1120. One end of the connecting rod 1120 is hinged to the output end of the telescopic drive cylinder 1110, and the other end is fixedly connected to the corresponding end of the rotating shaft 30.

[0099] In this embodiment, the telescopic drive cylinder 1110 is fixed to one side of the outer wall of the frame 20, rather than inside the frame 20 of the packaging bag making equipment. This avoids the adjustment drive component 111 occupying the working space for substrate transportation and glue spraying, and also prevents glue splashing from contaminating the adjustment drive component 111, ensuring the operational stability of the drive component. The connecting rod 1120 only needs to connect the output end of the drive cylinder to the end of the rotating shaft 30, resulting in a compact structure that will not interfere with the operation of other components of the packaging bag making equipment, making the internal layout of the entire packaging bag making equipment more reasonable.

[0100] Of course, the glue spraying component 120 can also be directly connected to the adjusting component 110. For example, the adjusting component 110 can be configured as a rotary drive motor, with its output end extending along the first direction and fixedly connected to the glue spraying component 120. The rotary drive motor drives the glue spraying component 120 to rotate around the first direction, switching between the first and second positions. Alternatively, the glue spraying component 120 can be hinged to the frame 20 and rotate around the first direction. The adjusting component 110 can be configured as a linear output drive cylinder, with its output end extending perpendicular to the first direction. One end of the drive cylinder is hinged to the glue spraying component 120, pushing the glue spraying component 120 to rotate relative to the frame 20 around the first direction, thereby achieving the switching between the first and second positions. Therefore, regarding the specific structure of the adjusting component 110, those skilled in the art can design it according to actual conditions and specific needs, and this embodiment does not impose a unique limitation on it.

[0101] The following is a detailed description of the glue spraying component 120 in the glue spraying assembly 100.

[0102] In this embodiment, the glue spraying component 120 includes a glue spraying drive component 121 and a glue spraying housing 122. The glue spraying housing 122 includes a transmission cavity and a glue receiving cavity; a glue spraying transmission component 123 is disposed in the transmission cavity, and the glue spraying drive component 121 is connected to the glue spraying transmission component 123 in a transmission connection; the glue receiving cavity contains glue liquid and has a glue inlet 1201 and a glue spraying part 1202.

[0103] Specifically, the glue inlet 1201 is a glue inlet connector 1223 located on the side wall of the glue-containing cavity and connected to the glue storage component pipeline, and the glue spraying part 1202 is a plurality of glue spraying holes 1224 arranged at intervals on the side wall of the glue-containing cavity away from the transmission cavity. To ensure high pressure within the glue-containing cavity and facilitate glue spraying from the glue spraying part 1202 during the glue spraying process, as shown... Figure 2 As shown, the glue inlet 1201 can be two glue spraying nozzles installed on the side wall of the glue chamber and connected to the glue storage component pipeline to increase the glue inlet volume. Both glue spraying nozzles can be used for glue inlet. Of course, one glue spraying nozzle can be used for glue inlet and the other glue spraying nozzle can be used for glue outlet, thereby adjusting the pressure in the glue chamber.

[0104] Furthermore, the glue spraying part 1202 is provided on the side wall of the glue-containing cavity away from the transmission cavity, and has two, five, seven, nine or other numbers of glue spraying holes 1224 spaced apart along the first direction. Of course, the number and layout of the multiple glue spraying holes 1224 can be designed according to the specific sealing part of the substrate, and this embodiment does not make specific limitations on this.

[0105] Furthermore, a plurality of sealing members 124 corresponding to the plurality of glue spraying holes 1224 are provided between the transmission cavity and the glue-containing cavity. One end of each sealing member 124 is detachably abutted against the inner peripheral sidewall of the corresponding glue spraying hole 1224, and the other end extends out of the glue-containing cavity and into the transmission cavity. Moreover, the portion of each sealing member 124 in the transmission cavity is connected to the glue spraying transmission component 123 for transmission. The number of sealing members 124 is the same as the number of glue spraying holes 1224, and will not be described further here.

[0106] When the glue spraying unit 1202 is in the first position, the glue spraying drive 121 drives the glue spraying transmission component 123 and links one end of the multiple sealing components 124 to separate from the corresponding glue spraying hole 1224, and the glue in the glue cavity is sprayed out from the multiple glue spraying holes 1224.

[0107] When the adhesive spraying device 10 is spraying adhesive, the adhesive spraying drive component 121 links with the adhesive spraying transmission component, which drives multiple sealing components 124 to separate from the corresponding adhesive spraying holes 1224, and the adhesive is sprayed out from the adhesive cavity from the adhesive spraying holes 1224. In the non-adhesive spraying state, one end of the sealing component 124 abuts against the inner peripheral sidewall of the corresponding adhesive spraying hole 1224 to seal the adhesive spraying hole 1224, avoid the leakage of adhesive, thereby reducing the waste of adhesive, and preventing the leaked adhesive from contaminating other parts or substrates of the packaging bag making equipment, thus ensuring the cleanliness of the packaging bag production environment.

[0108] Furthermore, traditional glue spray head clogging is mostly due to glue residue drying inside the glue spray hole 1224. However, in this glue spraying device 10, the sealing element 124 normally abuts against the glue spray hole 1224, which can block the contact between air and the glue in the glue chamber, slowing down the drying rate of the glue at the glue spray hole 1224. At the same time, the process of the glue spraying drive 121 driving the sealing element 124 to separate or abut against the glue spray hole 1224 is equivalent to "mechanically scraping and cleaning" the inner peripheral sidewall of the glue spray hole 1224, which can scrape off the residual glue adhering to the inner peripheral sidewall of the glue spray hole 1224, greatly reducing the probability of glue spray hole 1224 clogging, ensuring that the glue sprayed from multiple glue spray holes 1224 is uniform and consistent, and ensuring stable sealing quality of packaging bags.

[0109] More specifically, in this embodiment, each sealing member 124 may be provided with a sealing pin 1240 extending from the adhesive cavity to the transmission cavity. One end of the sealing pin 1240 abuts against the inner peripheral sidewall of the corresponding adhesive spraying hole 1224, and the other end abuts against the pre-tightening member 125 on the side of the transmission cavity away from the adhesive cavity. The pre-tightening member 125 pushes the sealing pin 1240 toward the adhesive cavity, so that one end of the sealing pin 1240 always tightly abuts against the inner peripheral sidewall of the adhesive spraying hole 1224, forming a relatively reliable seal. Even if there are pressure fluctuations in the adhesive in the adhesive cavity, it can prevent the adhesive from leaking from the adhesive spraying hole 1224. It should be noted that the pre-tightening member 125 can be a helical spring commonly used in the art. Of course, the pre-tightening member 125 can also be other laminates or rubber blocks that provide pre-tightening force.

[0110] Furthermore, the portion of the sealing needle 1240 located axially within the transmission cavity is provided with a transmission part, which is connected to the glue spraying transmission component 123. The glue spraying drive component 121 drives the glue spraying transmission component 123, and the transmission part of the sealing needle 1240 is linked through the glue spraying transmission component 123, so that the sealing needle 1240 overcomes the pre-tightening force of the pre-tightening component 125, thereby separating one end of the sealing needle 1240 from the inner peripheral sidewall of the corresponding glue spraying hole 1224.

[0111] It should be noted that the adhesive spray housing 122 may include a first housing 1221 and a second housing 1222 stacked together. The interior of the first housing 1221 forms a transmission cavity, while the interior of the second housing 1222 forms an adhesive receiving cavity. The adhesive spraying transmission component 123 is disposed within the first housing 1221, while the adhesive is located within the second housing 1222. Furthermore, both the adhesive inlet 1201 and the adhesive spraying part 1202 are disposed on the side wall of the second housing 1222.

[0112] More specifically, the glue spraying drive component 121 is configured as a glue spraying drive motor 1210, and the glue spraying transmission component 123 is disposed in the first housing 1221, and includes a camshaft 1231 extending along the first direction and connected to the glue spraying drive motor 1210 at one end, and multiple swing arms 1232 corresponding to multiple sealing needles 1240 respectively and swinging around the first direction in the transmission cavity. Multiple cams corresponding to the multiple swing arms 1232 are sleeved on the camshaft 1231, and one end of each swing arm 1232 slides against the corresponding cam.

[0113] Furthermore, each sealing needle 1240 has a sleeve 1241 fixedly fitted inside the transmission cavity. The sleeve 1241 serves as the transmission part of the sealing needle 1240 and is connected to the other end of a corresponding swing arm 1232. Specifically, the other end of the swing arm 1232 forms a fork-shaped structure and is fitted onto the corresponding outer periphery of the sealing needle 1240, abutting against the sleeve 1241 in the axial direction of the sealing needle 1240. Of course, the sleeve 1241 can also be integrally formed with the sealing needle 1240.

[0114] The output end of the glue spraying drive motor 1210 can be equipped with a speed reducer, thereby connecting the output end of the glue spraying drive motor 1210 to one end of the camshaft 1231. The glue spraying drive motor 1210 then drives the camshaft 1231 to rotate. Multiple cams on the camshaft 1231 push against one end of a corresponding rocker arm 1232. The rocker arm 1232 swings around a first direction, and the other end moves away from the corresponding glue spraying hole 1224 along its axial direction through the sleeve 1241 in conjunction with the corresponding sealing needle 1240.

[0115] It should be noted that within the transmission cavity of the first housing 1221, the cam on the camshaft 1231, multiple rocker arms 1232, and the corresponding sealing needles 1240 undergo frequent transmission during the glue spraying process. To reduce wear on these transmission components and extend the service life of the glue spraying component 120, a lubricating substance is filled within the transmission cavity of the first housing 1221. Specifically, different lubricating substances can be filled at different locations within the first housing 1221 depending on the transmission method, such as... Figure 3 As shown, lubricating oil is provided between the camshaft 1231 and the multiple rocker arms 1232, while grease is filled on the side of the sealing needle 1240 near the glue-containing cavity of the second housing 1222. The areas filled with lubricating oil and grease are separated in the first housing 1221 by a partition. Of course, this embodiment does not limit the specific filling method of the lubricating material.

[0116] Furthermore, since the other end of the sealing needle 1240 extends from the glue-containing cavity of the second housing 1222 and into the transmission cavity of the first housing 1221, in order to prevent the glue in the glue-containing cavity of the second housing 1222 from seeping into the transmission cavity of the first housing 1221 and reducing the pressure in the glue-containing cavity, or the lubricating oil or grease in the transmission cavity of the first housing 1221 from seeping into the glue-containing cavity of the second housing 1222 and contaminating the glue, sealing rings 126 are provided on both sides of the assembly hole through which the sealing needle 1240 passes on the wall surface where the first housing 1221 and the second housing 1222 meet.

[0117] Furthermore, the first direction, the transport direction of the substrate, and the axial direction of the sealing needle 1240 are perpendicular to each other.

[0118] In this embodiment, the glue spraying drive motor 1210 can precisely control the speed and angle of the camshaft 1231. Each rotation of the camshaft 1231 can drive the sealing needle 1240 to move away from the glue spraying hole 1224 (glue spraying) and reset the sealing cycle through the swing arm 1232. That is, the glue spraying is precisely controlled, thereby matching the transport speed of the substrate on the packaging bag making equipment. For example, on the substrate being transported at high speed, "spray as you go and seal as you stop (glue spraying hole 1224)" can be achieved, avoiding problems such as misalignment and missed spraying of glue caused by the lag in response or untimely start and stop of traditional pneumatic drive.

[0119] It should be noted that, in order to precisely control the speed and angle of rotation of the camshaft 1231, such as... Figure 3 As shown, a photoelectric sensor 127 can also be provided on the side of the first housing 1221 away from the glue spraying drive motor 1210, and a sensing sheet is provided on the free end of the photoelectric sensor 127. The sensing sheet corresponds to the other end of the camshaft 1231, so that the rotational speed and phase of the camshaft 1231 can be collected.

[0120] Furthermore, by replacing cams with different profiles on the camshaft 1231 (such as changing the cam's lift height and lift time), the axial movement distance of the sealing needle 1240 (i.e., the opening size of the glue spraying hole 1224) and the opening duration can be flexibly adjusted, thereby controlling the amount and time of glue spraying. For example, for paper packaging bags requiring a small amount of glue for quick sealing, a cam with a small lift and short lift time can be selected; for non-woven packaging bags requiring a large amount of glue for enhanced sealing, a cam with a large lift and long lift time can be selected. At the same time, the speed adjustment of the glue spraying drive motor 1210 can also be coordinated with the cam structure to achieve multiple modes such as "high speed short glue spraying" and "low speed long glue spraying". It can adapt to the glue spraying needs of packaging bags of different materials and specifications without replacing the main body of the glue spraying component 120, greatly improving the applicability of the glue spraying device 10.

[0121] Of course, the specific structure of the adhesive spraying component 120 is not limited to the structure in the above embodiment. The adhesive spraying drive 121 can also be configured as a linear motor, with its output end parallel to the axis of the multiple sealing pins 1240. The output end of the linear motor is connected to the other end of the multiple sealing pins 1240 via a connecting rod 1120. When adhesive spraying is required, the linear motor drives the connecting rod 1120 and moves the multiple sealing pins 1240 away from the adhesive cavity, causing one end of the sealing pin 1240 to separate from the corresponding adhesive spraying hole 1224, and the adhesive is sprayed out from the adhesive spraying hole 1224. When adhesive spraying stops, the linear motor drives the connecting rod 1120 and moves the multiple sealing pins 1240 towards the adhesive cavity, causing one end of the sealing pin 1240 to abut against the inner peripheral wall of the corresponding adhesive spraying hole 1224, forming a seal. Therefore, those skilled in the art can design the specific structure of the adhesive spraying component 120 according to actual conditions and specific needs; this embodiment does not impose a unique limitation on this.

[0122] Furthermore, in another embodiment, such as Figure 4 As shown, the adhesive spraying device 10 may also include a cleaning component 200 located on the frame 20 and spaced apart from the adhesive spraying component 100 in the substrate transport direction.

[0123] The cleaning component 200 includes a mounting base 210 disposed on the frame 20 and a cleaning nozzle 220 mounted on the mounting base 210. One end of the cleaning nozzle 220 faces the adhesive spraying part 1202 of the adhesive spraying component 120 in the second position, and the other end is connected to the liquid storage component pipeline.

[0124] When it is necessary to clean the glue spraying part 1202 of the glue spraying component 120, the adjusting component 110 moves the glue spraying component 120 to the second position. The cleaning nozzle 220 is precisely aimed at the glue spraying part 1202 in the second position (maintenance position). After the glue spraying component 120 is switched to the maintenance position, no additional position adjustment is required. The cleaning nozzle 220 can directly spray the cleaning liquid onto multiple glue spraying holes 1224 and the surrounding area. There is no need for operators to manually wipe and clean, which efficiently completes the cleaning of the glue spraying component 120, reduces the risk of blockage caused by residue accumulation in the glue spraying holes 1224, ensures the uniformity and stability of subsequent glue spraying, and reduces the defect rate caused by blockage.

[0125] It should be noted that the cleaning solution can be water or a solution of other mixed cleaning agents, and this embodiment does not specifically limit it.

[0126] Furthermore, compared to traditional manual cleaning, which may result in scratches on the spray nozzle 1224 and deformation of the sealing pin 1240 due to improper operation, the cleaning nozzle performs gentle cleaning by steadily spraying cleaning fluid with uniform force, without causing mechanical damage to the spray nozzle 1202. At the same time, timely cleaning can prevent adhesive from adhering to the inner wall of the spray nozzle 1224 and the end of the sealing pin 1240 for a long time, reducing corrosion and wear on the spray nozzle 120, especially protecting the delicate structure of the spray nozzle 1224 and the sealing pin 1240, and significantly extending the overall service life of the spray nozzle 120.

[0127] Therefore, through the coordinated operation of the glue spraying component 100 and the cleaning component 200, the glue spraying component 120 can be rotated from the first position (glue spraying position) to the second position (maintenance position) by the adjusting component 110, and the cleaning component 200 can be started immediately for cleaning. After cleaning is completed, it can be quickly rotated back to the glue spraying position to continue operation, forming a continuous maintenance process. There is no need to make additional adjustments to other components on the packaging bag making equipment, further reducing downtime and improving the efficiency of the packaging bag making equipment in producing packaging bags.

[0128] It should be noted that, as Figure 6As shown, in this embodiment, the cleaning nozzle 220 may have a main connector 221 and an auxiliary connector 222. The main connector 221 is connected to the water supply pipeline, and the auxiliary connector 222 is connected to the air supply pipeline. The cleaning fluid introduced through the main connector 221 can dissolve the dried adhesive in the spray hole 1224, forming a wetting effect on stubborn residues. The gas introduced through the auxiliary connector 222 can form a high-pressure airflow, which on the one hand can enhance the spray impact of the cleaning fluid, helping to atomize the cleaning fluid and allowing it to penetrate deeper into the gaps of the spray hole 1224, thus improving cleaning ability. On the other hand, after cleaning with the cleaning fluid, the high-pressure airflow can quickly dry the residual liquid and tiny adhesive residue on the surface of the spray part 1202 and in the spray hole 1224, preventing secondary adhesion caused by cleaning fluid residue and further preventing the potential for subsequent clogging of the spray hole 1224. It should be understood that... Figure 5 and Figure 6 The sheet-like structure sprayed from the self-cleaning nozzle 220 is used to illustrate the cleaning fluid.

[0129] Furthermore, such as Figure 5 As shown, in this embodiment, the cleaning component 200 further includes a cleaning drive 230, and the mounting base 210 is disposed at the output end of the cleaning drive 230.

[0130] Furthermore, a sealing cover 240 is provided on the side of the mounting base 210 near the adhesive spraying assembly 100, and the sealing cover 240 has an opening on the side opposite to the cleaning nozzle 220.

[0131] The adjusting component 110 adjusts the adhesive spraying component 120 to the second position, the cleaning drive component 230 drives the mounting base 210 and moves the cleaning nozzle 220 and the sealing cover 240 toward the adhesive spraying part 1202, the opening edge of the sealing cover 240 abuts against the peripheral wall of the adhesive spraying part 1202, and the cleaning nozzle 220 sprays cleaning liquid toward the adhesive spraying part 1202.

[0132] In this embodiment, the cleaning drive 230 drives the mounting base 210 to move toward the adhesive spraying component 120 at the second position, so that the opening edge of the sealing cover 240 on the mounting base 210 tightly abuts against the peripheral wall of the adhesive spraying part 1202, forming a closed cleaning space. When the cleaning nozzle 220 sprays cleaning liquid in the sealed space, it can prevent the cleaning liquid from splashing and flowing away, allowing the cleaning liquid to fully wet the adhesive spraying hole 1224 and the surrounding area, prolonging the contact time between the cleaning liquid and the residual adhesive, and greatly improving the adhesive dissolution efficiency.

[0133] Furthermore, the sealing cover 240 can completely prevent the cleaning liquid from splashing onto other parts of the packaging bag making equipment (such as the substrate transport parts, the glue spraying drive motor 1210, the camshaft 1231, etc.), preventing the cleaning liquid from corroding the metal parts of the equipment or contaminating the substrate to be processed later.

[0134] It should be noted that, in this embodiment, the opening edge of the sealing cover 240 is adapted to the peripheral edge of the adhesive spraying part 1202, and the sealing cover 240 is capable of elastic deformation.

[0135] Because the opening edge of the sealing cover 240 precisely matches the peripheral edge of the adhesive spraying part 1202, it ensures that the sealing cover 240 can completely cover the area to be cleaned on the adhesive spraying part 1202. Simultaneously, the elastic deformation characteristics of the sealing cover 240 allow it to adaptively deform to conform to the contour of the peripheral wall of the adhesive spraying part 1202 under the thrust of the cleaning drive component 230. Even if there are slight processing errors, surface wear, or minor deviations during installation on the peripheral side of the adhesive spraying part 1202, the elastic sealing cover 240 can compensate for these gaps through deformation, forming a tight seal without dead angles, preventing leakage of cleaning fluid during the cleaning process.

[0136] Furthermore, compared to the rigid sealing cover 240, which is prone to damage such as scratches on the glue spraying hole 1224 and displacement of the sealing needle 1240 due to impact or long-term friction when it comes into contact with the glue spraying part 1202, the elastic sealing cover 240 buffers the contact pressure through its own deformation during the bonding process, forming a flexible bonding. This not only ensures the sealing effect but also avoids mechanical damage to the surface of the glue spraying part 1202 and precision components, effectively extending the service life of the glue spraying part 120.

[0137] Specifically, such as Figure 5 and Figure 7 As shown, the cleaning drive unit 230 includes a cleaning drive motor 231 mounted on the frame 20. The mounting base 210 includes a mounting bracket 211 and a fixing plate 212 located on the side of the mounting bracket 211 near the adhesive spraying component 120 and fixedly connected to the mounting bracket 211. The mounting bracket 211 is fixedly connected to the output end of the cleaning drive motor 231, and the cleaning nozzle 220 is fixedly mounted on the mounting bracket 211.

[0138] The sealing cover 240 is disposed on the side of the fixing plate 212 away from the cleaning nozzle 220. The fixing plate 212 is provided with a through hole 2121 that is aligned with the cleaning nozzle 220 and adapted to the outer peripheral contour of the adhesive spraying part 1202.

[0139] The fixed plate 212 is also provided with a drain outlet 2122 that penetrates the fixed plate 212, and a drain connector 2123 connected to the drain pipe is provided on the side of the drain outlet 2122 away from the sealing cover 240. It should be noted that the drain outlet 2122 should be close to the lower end of the fixed plate 212 in the height direction to ensure that all waste liquid can be discharged from the drain outlet 2122.

[0140] In this embodiment, the cleaning drive motor 231 achieves precise adjustment of speed and stroke through servo control, which can precisely control the feed distance and moving speed of the mounting base 210, ensuring that the sealing cover 240 fits the adhesive spraying part 1202 smoothly and accurately, avoiding damage to the sealing cover 240 due to excessive feed or insufficient feed affecting the sealing effect.

[0141] Furthermore, the cleaning nozzle 220 is mounted on the mounting bracket 211, and the through hole 2121 on the fixing plate 212 is aligned with the cleaning nozzle 220 and adapted to the outer periphery of the adhesive spraying section 1202. This allows the cleaning liquid sprayed from the cleaning nozzle 220 to accurately pass through the through hole 2121 and concentrate on the area to be cleaned in the adhesive spraying section 1202, preventing the cleaning liquid from spreading and leaking. The drain port 2122 on the fixing plate 212 is connected to the drain pipe through the drain connector 2123. Within the closed cleaning space formed by the sealing cover 240, the waste liquid after dissolving the adhesive can be quickly collected through the drain port 2122 and discharged to the outside through the drain connector 2123 and the pipe, preventing the waste liquid from contaminating the packaging bag making equipment and the production environment.

[0142] Of course, in this embodiment, the cleaning drive component 230 can also be configured as a cleaning drive hydraulic cylinder or a cleaning drive air cylinder, etc. This embodiment does not limit it to a single type.

[0143] An embodiment of the present invention discloses a packaging bag manufacturing device, such as... Figure 8 As shown, the device includes a frame 20 and a hub 40 disposed on the frame 20. The substrate is transported along the outer surface of the hub 40. An opening device and a closing device are sequentially disposed on the outer periphery of the hub 40 along the transport direction of the substrate. The device also includes a glue spraying device 10 of any of the above-mentioned packaging bag making equipment.

[0144] Furthermore, on the outer periphery of the hub 40, along the transport direction of the substrate, the adhesive spraying device 10 is disposed between the bottom opening device and the bottom closing device.

[0145] In this embodiment, the substrate is transported along the outer surface of the hub 40. The hub 40 provides stable support and guidance for the substrate, preventing wrinkles and shifts during transport. The glue spraying device 10 is located after the bottom opening device and before the bottom closing device. After the substrate is unfolded by the bottom opening device to form the circumferential and bottom surfaces of the bag, the glue spraying device 10 can immediately and accurately spray glue onto the preset sealing area. Subsequently, the bottom closing device completes the sealing of the bag. Furthermore, the glue spraying component 120 of the glue spraying device 10 can be adjusted to a first and a second position via the adjusting component 110, greatly facilitating the cleaning and replacement of the glue spraying component 120, reducing downtime of the packaging bag making equipment due to malfunction of the glue spraying component 120, and improving the operational reliability of the packaging bag making equipment.

[0146] It should be noted that, in addition to the specific embodiments described above, those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details are included in the above description, and the invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0147] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0148] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during use. They are only for the convenience of describing the present invention and simplifying the description, and 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. Therefore, they should not be construed as limiting the present invention.

[0149] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0150] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0151] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the invention to these descriptions. Various changes in form and detail can be made by those skilled in the art, including several simple deductions or substitutions, without departing from the spirit and scope of the invention.

Claims

1. An adhesive spraying device of a packaging bag making apparatus, characterized by comprising: The glue spraying assembly is arranged on a rack of the packaging bag manufacturing device, and comprises an adjusting component and a glue spraying component arranged on the rack. The glue spraying component is arranged on the rack and can rotate around a first direction, and has a glue inlet part and a glue spraying part arranged at intervals. The adjusting component is arranged on one side of the rack and is in transmission connection with the glue spraying component. The adjusting component can drive the glue spraying component to rotate around the first direction, so that the glue spraying part of the glue spraying component is switched between a first position and a second position.

2. The glue spraying device of a packaging bag manufacturing apparatus according to claim 1, wherein In the first position, the glue spraying part faces the corresponding sealing part of the substrate in the glue spraying position. In the second position, the glue spraying part faces the outside of the rack. A rotating shaft is arranged on the rack and can rotate, the axis of the rotating shaft extends along the first direction and is perpendicular to the conveying direction of the substrate, and the glue spraying component is mounted on the rotating shaft.

3. The glue spraying apparatus of the packaging bag manufacturing apparatus as claimed in claim 2, wherein The adjusting component comprises an adjusting drive arranged on the rack and an intermediate transmission part arranged on the output end of the adjusting drive, and the intermediate transmission part is in transmission connection with one end of the rotating shaft. The adjusting drive drives the intermediate transmission part and drives the rotating shaft to rotate around the first direction, so that the glue spraying component is switched between the first position and the second position. The adjusting drive is arranged as a telescopic drive cylinder, and the telescopic drive cylinder is fixed to the outer wall of one side of the rack.

4. The glue spraying apparatus of the packaging bag manufacturing apparatus as claimed in claim 2, wherein The intermediate transmission part is arranged as a connecting rod, one end of the connecting rod is hinged to the output end of the telescopic drive cylinder, and the other end is fixedly connected to the corresponding end of the rotating shaft. The glue spraying component comprises a glue spraying drive and a glue spraying shell. The glue spraying shell comprises a transmission cavity and a glue containing cavity. The transmission cavity is provided with a glue spraying transmission part, the glue spraying drive is in transmission connection with the glue spraying transmission part, and the glue containing cavity contains glue and has the glue inlet part and the glue spraying part. The transmission cavity and the glue containing cavity are provided with a plurality of hole sealing parts corresponding to the plurality of glue spraying holes.

5. The glue spraying apparatus of the packaging bag manufacturing apparatus as claimed in claim 4, wherein When the glue spraying part is in the first position, the glue spraying drive drives the glue spraying transmission part and drives one end of the plurality of hole sealing parts to be separated from the corresponding glue spraying hole, and the glue in the glue cavity is sprayed from the plurality of glue spraying holes. Each of the sealing needles is arranged to extend from the glue accommodating cavity to the transmission cavity, one end of the sealing needle abuts against the inner circumferential sidewall of the corresponding glue injection hole, and the other end abuts against a pre-tightening member on the side of the transmission cavity away from the glue accommodating cavity, the pre-tightening member pushes the sealing needle towards the glue accommodating cavity; and The part of the sealing needle in the transmission cavity in the axial direction is provided with a transmission part, and the transmission part is in transmission connection with the glue injection transmission part.

6. The glue spraying apparatus of the packaging bag manufacturing apparatus as claimed in claim 5, wherein Wherein The glue injection driving member is arranged as a glue injection driving motor, the glue injection transmission part includes a camshaft extending along the first direction and having one end in transmission connection with the glue injection driving motor, and a plurality of swing arms corresponding to the plurality of sealing needles and swingable in the transmission cavity about the first direction, a plurality of cams corresponding to the plurality of swing arms are sleeved on the camshaft, and one end of each swing arm is in sliding abutment with the corresponding cam; and The part of each sealing needle in the transmission cavity is fixedly sleeved with a sleeve, the sleeve is in transmission connection with the other end of the corresponding swing arm as the transmission part of the sealing needle; wherein The glue injection driving motor drives the camshaft to rotate, the plurality of cams on the camshaft push against one end of the corresponding swing arm, the swing arm swings about the first direction, and the other end of the swing arm moves the corresponding sealing needle away from the corresponding glue injection hole through the sleeve; and The first direction, the transportation direction of the base material, and the axial direction of the sealing needle are perpendicular to each other.

7. The glue spraying device of the packaging bag manufacturing apparatus according to any one of claims 1 to 6, wherein The glue injection device further includes a cleaning assembly arranged on the rack and spaced apart from the glue injection assembly in the transportation direction of the base material; Wherein The cleaning assembly includes a mounting seat arranged on the rack, and a cleaning nozzle mounted on the mounting seat, one end of the cleaning nozzle faces the glue injection part of the glue injection assembly in the second position, and the other end is in pipeline communication with a liquid storage part.

8. The glue spraying apparatus of the packaging bag manufacturing apparatus as claimed in claim 7, wherein The cleaning assembly further includes a cleaning driving member, the mounting seat is arranged on the output end of the cleaning driving member, and The mounting seat is provided with a sealing cover on the side close to the glue injection assembly, and the side of the sealing cover away from the cleaning nozzle has an opening; Wherein The adjusting part adjusts the glue injection assembly to the second position, the cleaning driving member drives the mounting seat and links the cleaning nozzle and the sealing cover to move towards the glue injection part, the opening edge of the sealing cover abuts against the circumferential sidewall of the glue injection part, and the cleaning nozzle sprays cleaning liquid towards the glue injection part.

9. The glue spraying apparatus of the packaging bag manufacturing apparatus as claimed in claim 8, wherein Wherein The opening edge of the sealing cover is matched with the circumferential edge of the glue injection part, and the sealing cover can be elastically deformed.

10. The glue spraying apparatus of the packaging bag manufacturing apparatus as claimed in claim 8, wherein The cleaning driving member includes a cleaning driving motor arranged on the rack; and The mounting seat includes a mounting frame and a fixed plate arranged on the side of the mounting frame close to the glue injection assembly and fixedly connected with the mounting frame, the mounting frame is fixedly connected with the output end of the cleaning driving motor, and the cleaning nozzle is fixedly arranged on the mounting frame; The sealing cover is arranged on the side of the fixed plate away from the cleaning nozzle, and the fixed plate is provided with a through hole aligned with the cleaning nozzle and matched with the outer contour of the glue spraying part; The fixed plate is further provided with a drainage port penetrating the fixed plate, and the drainage port is provided with a drainage connector communicated with a drainage pipeline on the side away from the sealing cover.

11. The glue spraying apparatus of the packaging bag manufacturing apparatus as claimed in claim 7, wherein The cleaning nozzle has a main connector communicated with a water supply pipeline and an auxiliary connector communicated with a gas supply pipeline.

12. A bag making apparatus comprising a frame and a hub provided on the frame, a base material being transported along an outer surface of the hub, an opening device and a closing device being provided in this order along a circumferential direction of the hub in a direction of transportation of the base material, characterized in that, The glue spraying device of the packaging bag manufacturing equipment according to any one of claims 1-11 is further included; and The glue spraying device is arranged between the open bottom device and the close bottom device along the transportation direction of the base material on the outer periphery of the hub.

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