A bagging apparatus

Abstract

The utility model relates to packing machinery technical field, the utility model provides a kind of bagging equipment, it includes rack, inner bag pushing device, outer bag mouth opening device and finished product blanking device are sequentially arranged in rack along transverse direction, exhaust mounting frame is located between outer bag mouth opening device and finished product blanking device and is located above rack, lower pressure telescopic part is located on exhaust mounting frame, its protruding end is towards rack and is equipped with exhaust roller, lower pressure telescopic part can drive exhaust roller to descend and adhere to rack. The above technical scheme, controllable extrusion force can be formed between exhaust roller and rack, the size of extrusion force can be controlled by adjusting the protruding amount of lower pressure telescopic part, ensure that while effectively exhausting residual gas, avoid product bag breakage due to excessive force, solve the problem that air residual is difficult to remove in prior art.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, specifically to a bagging device. Background Technology

[0002] Double-layer plastic bags are widely used in many fields such as food packaging, daily necessities storage, industrial protection, and medical supplies packaging due to their excellent sealing, moisture-proof, and cushioning properties. The production of double-layer plastic bags typically involves inner bag forming, outer bag forming, and the purging process of inserting the inner bag into the outer bag. The quality of the purging process directly affects the final performance of the double-layer plastic bag. In existing technologies, the bagging operation of double-layer plastic bags is mostly carried out manually or by simple mechanical assistance. When bagging manually, the operator manually opens the inner bag and puts it into the outer bag. During this process, problems such as uneven operating force and deviation of the insertion angle can easily lead to a large amount of air being mixed into the outer bag. Simple mechanical assistance bagging equipment usually only has the function of clamping and transferring the inner and outer bags, and lacks a targeted venting structure. When the inner bag is inserted into the outer bag, air easily remains inside the outer bag, and this residual air is difficult to completely remove using existing processes. This not only causes the double-layered plastic bags to occupy more space during storage, leading to reduced warehousing efficiency, but also causes uneven stress on the outer bag during transportation due to bumps and compression, making it prone to damage and cracking, thus affecting the protective effect of the double-layered plastic bags and product quality. Therefore, effectively solving the problem of residual air during the bagging process has become crucial to improving the production quality and efficiency of double-layered plastic bags. Utility Model Content

[0003] To overcome the above-mentioned defects, the present invention provides a bagging device, which solves the technical problem in the prior art that when making double-layer plastic bags, air is easily left inside the outer bag after the inner bag is put into the outer bag and is difficult to completely remove, which affects the subsequent storage and transportation of the double-layer plastic bags.

[0004] According to one aspect, at least one embodiment of the present invention provides a bagging device, comprising: The frame is provided with an inner bag pushing device, an outer bag opening device and a finished product unloading device arranged sequentially along the horizontal direction of the frame. An exhaust mounting bracket is located above the frame and between the outer bag opening device and the finished product unloading device; A downward-pressing telescopic component is provided on the exhaust mounting frame. The extended end of the downward-pressing telescopic component faces the frame and is provided with an exhaust roller. The downward-pressing telescopic component can drive the exhaust roller to descend and fit against the frame to discharge the gas in the finished product bag being conveyed to the finished product unloading device.

[0005] For example, in a bagging device provided in at least one embodiment of this utility model, the inner bag pushing device includes: The inner bag compartment is located at the lower part of the frame; The inner bag sliding plate is slidably connected to the frame in a transverse direction; The inner bag material handling component is located on the inner bag sliding plate, with its protruding end facing the inner bag compartment; Several bag-piercing rods are provided, one end of which is located at the protruding end of the inner bag material-taking component, and the other end of the bag-piercing rod faces the outer bag opening device and is provided with an inner bag feeding suction cup.

[0006] For example, in a bagging device provided by at least one embodiment of the present invention, the two bag-piercing rods located on the side are provided with clamping telescopic members at one end near the outer bag opening device, the extended end of the clamping telescopic members is provided with a sliding clamping plate, and the sliding clamping plate is provided with a clamping suction cup facing the inner bag compartment; The clamping suction cup can approach the inner bag feeding suction cup under the sliding action of the sliding clamp plate, causing wrinkles to appear in the inner bag. The sliding clamp plate can cooperate with the bag insertion rod to clamp the wrinkles of the inner bag.

[0007] For example, in a bagging device provided in at least one embodiment of the present invention, the inner bag compartment is longitudinally slidably connected to the lower part of the frame.

[0008] For example, in a bagging device provided in at least one embodiment of this utility model, the outer bag opening support device includes: The bagging worktable is slidably connected to the frame and is located between the inner bag pushing device and the finished product unloading device. An outer bag feeding mechanism is mounted on the frame and is used to move the outer bag to the bagging worktable; A mouth-opening mechanism is provided on the frame and located between the bag-making worktable and the inner bag pushing device, for opening the outer bag opening located on the bag-making worktable.

[0009] For example, in a bagging device provided in at least one embodiment of this utility model, the outer bag feeding mechanism includes: The outer bag compartment is located on the side of the frame; The outer bag sliding plate is longitudinally slidably connected to the upper part of the frame and can slide to the upper part of the bagging worktable or the outer bag compartment; An outer bag picking component is provided on the outer bag sliding plate. The extended end of the outer bag picking component faces downward and has an outer bag picking suction cup. The outer bag picking component can move the outer bag in the outer bag compartment to the bagging worktable under the longitudinal sliding motion of the outer bag sliding plate.

[0010] For example, in a bagging device provided in at least one embodiment of this utility model, the opening support mechanism includes: The lower suction cup, located on the frame, is used to adsorb the bottom wall of the outer bag opening; A mouth-supporting telescopic component is provided on the frame and located above the lower suction cup. The extended end of the mouth-supporting telescopic component faces the lower suction cup and has an upper suction cup. The upper suction cup is used to adsorb the top wall of the outer bag opening. Two swing-out support components are both mounted on the frame and located between the lower suction cup and the inner bag pushing device. The two swing-out support components rotate in opposite directions. The swing end of each swing-out support component is provided with a swing-out plate. The swing-out plate can be supported against the inner wall of the outer bag opening under the swing-out action of the swing-out support component.

[0011] For example, in a bagging device provided by at least one embodiment of the present invention, two of the opening support swing members are slidably disposed on the frame and slide in opposite directions; the opening support mechanism further includes a bidirectional lead screw rotatably connected to the frame, both ends of the bidirectional lead screw being threaded with nuts, and the two opening support swing members are respectively connected to the two nuts through a connecting plate.

[0012] For example, in a bagging device provided in at least one embodiment of this utility model, the bagging workbench has a clearance groove on the side near the finished product unloading device, and the finished product unloading device includes: The finished product warehouse is located on the aforementioned rack; The material feeding slide plate is laterally slidably connected to the frame; A clamp is provided on the side of the feeding slide plate near the bagging worktable. The clamp can enter the relief groove under the sliding action of the feeding slide plate to clamp the finished bag located in the relief groove.

[0013] For example, in a bagging device provided in at least one embodiment of this utility model, the finished product unloading device further includes: An exhaust lifting component is mounted on the frame and located above the finished product bin. The lifting end of the exhaust lifting component is equipped with an exhaust plate, which can descend and press against the finished product bags inside the finished product bin.

[0014] The beneficial effects of the embodiments of this utility model are as follows: In this invention, the frame is arranged horizontally in sequence with an inner bag pushing device, an outer bag opening device, and a finished product unloading device. This structural layout creates a continuous horizontal working path between the bagging process (inner bag fitting into outer bag) and the finished product bag conveying process (finished product bag unloading), providing a foundation for the connection of the venting process, avoiding finished product bag transfer losses due to process dispersion, and ensuring the continuity of the overall equipment operation. The venting mounting bracket is located above the frame and between the outer bag opening device and the finished product unloading device. This position allows the venting process to be directly connected to the bagging process. After bagging, the finished bag can enter the venting stage without additional transfer, shortening the operation process, improving production efficiency, and the venting mounting bracket does not occupy space. The space below the transverse path of the frame does not affect the normal conveying of finished bags. The downward pressure telescopic component is located on the exhaust mounting frame, with its extended end facing the frame and equipped with an exhaust roller. The downward pressure telescopic component can drive the exhaust roller to descend and fit against the frame. This structure allows a controllable squeezing force to be formed between the exhaust roller and the frame. The magnitude of the squeezing force can be controlled by adjusting the extension of the downward pressure telescopic component, ensuring that residual gas is effectively discharged while avoiding damage to the finished bags due to excessive force. The exhaust roller is set so that the squeezing action is achieved in a rolling manner. The finished bags are in rolling contact with the exhaust roller during the conveying process. Compared with a fixed squeezing structure, this can reduce frictional damage to the surface of the finished bags and ensure the structural integrity of the finished bags. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a bagging device in one embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 A schematic diagram of the bagging device from a second perspective in the embodiment; Figure 4 for Figure 3 Enlarged view at point B in the middle; Figure 5 for Figure 3 Enlarged view at point C; Figure 6 for Figure 1 A structural schematic diagram of the bagging device from a third-view perspective in the embodiment; Figure 7 for Figure 6Enlarged view at point D; Figure 8 for Figure 6 Enlarged view at point E in the middle; Figure 9 for Figure 1 A schematic diagram of the bagging device from a fourth perspective in the embodiment; Figure 10 for Figure 9 Enlarged view at point F; Figure 11 for Figure 1 Enlarged view of point G in the middle.

[0016] In the diagram: 1. Frame; 2. Inner bag pushing device; 3. Outer bag opening device; 4. Finished product unloading device; 5. Exhaust mounting frame; 6. Downward pressing telescopic component; 61. Exhaust roller; 21. Inner bag compartment; 22. Inner bag sliding plate; 23. Inner bag picking component; 24. Bag threading rod; 25. Inner bag feeding suction cup; 26. Clamping telescopic component; 27. Sliding clamping plate; 28. Clamping suction cup; 31. Bag-making worktable; 32. Outer bag feeding mechanism; 33. Opening mechanism. 321. Outer bag compartment; 322. Outer bag sliding plate; 323. Outer bag material handling component; 324. Outer bag material handling suction cup; 331. Lower suction cup; 332. Spreading mouth telescopic component; 333. Upper suction cup; 334. Spreading mouth swing component; 335. Spreading mouth plate; 336. Two-way lead screw; 337. Lead screw nut; 338. Connecting plate; 311. Relief groove; 41. Finished product compartment; 42. Unloading sliding plate; 43. Clamp; 44. Exhaust lifting component; 45. Exhaust plate. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0017] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0018] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 limitations on this utility model.

[0021] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] Double-layer plastic bags are widely used for packaging and storing various items in fields such as food packaging, daily necessities storage, industrial protection, and medical supplies packaging due to their excellent sealing, moisture-proof, and cushioning properties. The production of double-layer plastic bags typically involves three steps: inner bag forming, outer bag forming, and bagging. The bagging step, where the formed inner bag is inserted into the outer bag, directly determines the final performance of the double-layer plastic bag—any operational deviations or residual air during the bagging process will severely affect the sealing and protective effects of the double-layer plastic bag.

[0023] In existing technologies, the bagging of double-layer plastic bags mostly relies on manual labor or simple mechanical assistance. When bagging manually, the operator must manually open the inner bag and insert the outer bag. During this process, uneven force and incorrect insertion angles can easily lead to a large amount of air getting into the outer bag. Simple mechanical bagging equipment can only clamp and transfer the inner and outer bags, lacking targeted venting and precise positioning structures, making it difficult to solve the problem of residual air after bagging and failing to guarantee the positional stability of the inner bag when inserted into the outer bag. To solve these problems, this utility model provides a bagging device that automates and precisely completes the bagging process of double-layer plastic bags, effectively eliminating residual air after bagging.

[0024] like Figure 1 As shown, this bagging equipment uses a frame 1 as its basic support structure. An inner bag pushing device 2, an outer bag opening device 3, and a finished product unloading device 4 are sequentially arranged horizontally on the frame 1, forming a continuous operating path extending horizontally. An exhaust mounting frame 5 is located above the frame 1, between the outer bag opening device 3 and the finished product unloading device 4. A downward pressure telescopic component 6 is fixedly installed on the exhaust mounting frame 5. The protruding end of the downward pressure telescopic component 6 faces the top surface of the frame 1, and an exhaust roller 61 is connected to the protruding end.

[0025] Optionally, the inner bag pushing device 2 is used to push the formed inner bag to the outer bag opening device 3. Its basic structure includes an inner bag bin 21 located at the lower part of the frame 1, an inner bag sliding plate 22 slidably connected to the frame 1 in the transverse direction, an inner bag picking component 23 fixed on the inner bag sliding plate 22, and a plurality of bag-passing rods 24 connected to the protruding end of the inner bag picking component 23. The outer bag opening device 3 is used to complete the feeding and opening of the outer bag. Its basic structure includes a bag-filling worktable 31 slidably connected to the frame 1 in the transverse direction, an outer bag feeding mechanism 32 located on the frame 1, and an opening mechanism 33 located between the bag-filling worktable 31 and the inner bag pushing device 2. The finished product unloading device 4 is used to collect the finished bags after bagging. Its basic structure includes a finished product bin 41 located on the frame 1, an unloading sliding plate 42 slidably connected to the frame 1 in the transverse direction, and a clamp 43 fixed to the unloading sliding plate 42 near the bag-filling worktable 31.

[0026] The working process is as follows: First, the outer bag feeding mechanism 32 moves the outer bag from the storage position to the bagging worktable 31. The bagging worktable 31 slides to the opening support mechanism 33, which opens the outer bag. Next, the inner bag pushing device 2 takes the inner bag from the inner bag bin 21 and fixes it to the bag insertion rod 24. The inner bag sliding plate 22 slides laterally, pushing the inner bag to the vicinity of the outer bag opening support device 3. Then, the inner bag pushing device 2 sends the inner bag into the opened outer bag to form a finished bag. After that, the bagging worktable 31 drives the finished bag to slide towards the finished product unloading device 4. During the sliding process, the exhaust roller 61 adheres to the top surface of the frame 1 under the drive of the pressure telescopic component, squeezing the finished bag to expel the internal air. Finally, after the finished bag reaches the finished product unloading device 4, the unloading sliding plate 42 drives the clamp 43 to pick up the finished bag and put it into the finished product bin 41 to complete the collection.

[0027] It should be noted that the lateral direction involved in this solution is defined as the extension direction along the inner bag pushing device 2 to the finished product unloading device 4 on the frame 1, that is, the main conveying direction of the inner bag and the finished product bag; the longitudinal direction is defined as the horizontal direction perpendicular to the lateral direction, mainly used for the sliding of the outer bag feeding mechanism 32 and the adjustment of the inner bag chamber 21; the telescopic component is a commonly used component in the field of packaging machinery, usually referring to the actuator that can realize linear telescopic movement, such as cylinders, electric push rods, etc., and its specific working principle belongs to the prior art, which will not be elaborated here.

[0028] To address the issue of residual air inside the finished bag after bagging, this solution adds an exhaust mounting frame 5 above the frame 1, and installs a downward pressure telescopic component 6 and an exhaust roller 61 on the exhaust mounting frame 5. Figure 1 and Figure 2 As shown, the exhaust mounting frame 5 spans the transverse path between the outer bag support device 3 and the finished product unloading device 4. The fixed end of the pressing telescopic component 6 is connected to the exhaust mounting frame 5, and the extended end faces downward and is connected to the exhaust roller 61. The exhaust roller 61 can rotate around its own axis. When the extended end of the pressing telescopic component 6 extends, the exhaust roller 61 can descend to the outer circumferential surface to fit against the top surface of the frame 1, forming a squeezing space for the finished product bag.

[0029] The finished bag slides along the bagging worktable 31 toward the finished product unloading device 4. When the finished bag enters the area below the exhaust mounting frame 5, the downward pressing telescopic component 6 drives the exhaust roller 61 to descend and fit against the top surface of the frame 1. The finished bag continues to slide and forms rolling contact with the exhaust roller 61. The exhaust roller 61 and the frame 1 apply a vertical squeezing force to the finished bag, causing the residual air inside the finished bag to be discharged along the bag opening or gap. After the exhaust is completed, the downward pressing telescopic component 6 drives the exhaust roller 61 to rise, so as to avoid obstructing the subsequent conveying of finished bags.

[0030] This venting structure connects directly after the bagging process, allowing venting to be completed without transferring the finished bags, significantly shortening the workflow. The rolling contact method of the venting roller 61 reduces frictional damage to the surface of the finished bags and is more adaptable to the conveying rhythm of the finished bags compared to a fixed extrusion plate. Combined with the controllable telescopic characteristics of the downward pressure telescopic component 6, the extrusion force can be adjusted according to the thickness of the finished bags, effectively venting while preventing damage to the outer bags. Furthermore, this venting structure, in conjunction with the secondary venting structure at the subsequent finished product hopper 41, can form a dual venting effect of primary venting during conveying plus secondary venting before storage, minimizing residual air and solving the problems of large storage space occupation and easy damage to the outer bags during transportation caused by residual air in the prior art. After the residual air is expelled, the finished bags are stacked more compactly, improving storage efficiency. The uneven force caused by the lack of air buffer during transportation significantly reduces the probability of damage and cracking of the outer bags.

[0031] A clamping structure is added to one end of the two side-mounted bag rods 24 near the outer bag support device 3, such as... Figure 3 and Figure 4 As shown, a clamping telescopic member 26 is fixed on the side bag-feeding rod 24. The extended end of the clamping telescopic member 26 faces the inside of the bag-feeding rod 24 and is connected to a sliding clamping plate 27. The sliding clamping plate 27 is provided with a clamping suction cup 28 facing the inner bag compartment 21. The clamping suction cup 28 cooperates with the inner bag feeding suction cup 25 on the bag-feeding rod 24, which can make the inner bag form pleats when the sliding clamping plate 27 slides, and the sliding clamping plate 27 can fit against the bag-feeding rod 24 to clamp the pleats.

[0032] After the inner bag feeding suction cup 25 adsorbs the inner bag, the clamping telescopic component 26 drives the sliding clamping plate 27 to approach the bag-feeding rod 24. Simultaneously, the clamping suction cup 28 adsorbs the surface of the inner bag and pulls the inner bag, causing the inner bag to form pleats on the bag-feeding rod 24. The sliding clamping plate 27 continues to move until it is in contact with the bag-feeding rod 24, clamping and fixing the pleats. After the inner bag is fitted into the outer bag, the clamping telescopic component 26 retracts, and the sliding clamping plate 27 moves away from the bag-feeding rod 24, releasing the clamp. The technical effect is that, through the dual fixing method of adsorption by the inner bag feeding suction cup 25 and clamping with pleats, the fixing stability of the inner bag on the bag-feeding rod 24 is significantly improved, avoiding deviation caused by shaking or friction of the outer bag during the conveying process. The pleated structure increases the contact area between the inner bag and the bag-feeding rod 24, further reducing the probability of deviation, ensuring that the inner bag can be accurately aligned with the opening of the outer bag, and improving the bag-feeding success rate.

[0033] Further optimization of the feeding structure, such as Figure 3As shown, the inner bag compartment 21 is slidably connected to the lower part of the frame 1 via a longitudinal slide rail, and its position can be adjusted longitudinally. During operation, when the amount of inner bags in the inner bag compartment 21 decreases, the inner bag compartment 21 slides upward along the longitudinal slide rail, ensuring that the remaining inner bags are always within the picking range of the inner bag picking component 23; when replenishing inner bags, the inner bag compartment 21 slides downward along the slide rail, increasing the operating space. The effect of this optimization is that material can be continuously picked up without stopping the machine to adjust the position of the inner bags, improving the continuous operation capability of the equipment; the longitudinal sliding method does not occupy the transverse operating space and avoids interference with the movement of the inner bag sliding plate 22.

[0034] The multi-stage support structure of the support mechanism 33 has been further optimized, such as... Figure 5 and Figure 9 As shown, the mouth-supporting mechanism 33 includes a lower suction cup 331 mounted on the frame 1, a mouth-supporting telescopic member 332 located above the lower suction cup 331, and two mouth-supporting swing members 334 located between the lower suction cup 331 and the inner bag pushing device 2; the extended end of the mouth-supporting telescopic member 332 faces downward and is connected to the upper suction cup 333, and the two mouth-supporting swing members 334 rotate in opposite directions, with their swing ends both connected to the mouth-supporting plate 335.

[0035] The bagging worktable 31 moves the outer bag to the opening position. The lower suction cup 331 adheres to the bottom wall of the outer bag opening. The opening extension component 332 drives the upper suction cup 333 to descend and adhere to the top wall. Subsequently, the upper suction cup 333 rises, initially opening the outer bag opening. The two opening swing components 334 rotate in opposite directions, driving the opening plate 335 to extend into the opening and support it outward, further opening the opening and maintaining its stability. This design enables a multi-stage opening method, where the upper and lower suction cups 331 initially open the opening and the opening plate 335 supports it internally. This avoids the outer bag opening closing before bagging, providing ample space for the inner bag to be inserted. At the same time, the large contact area between the opening plate 335 and the inner wall of the outer bag provides strong support stability and reduces opening deformation.

[0036] like Figure 10 As shown, two swing-out support components 334 are slidably connected to the transverse slide rail of the frame 1 via sliders, with opposite sliding directions. A bidirectional lead screw 336 is rotatably connected to the frame 1, with its two ends having opposite thread directions and being threaded to nuts 337 respectively. The swing-out support components 334 are fixed to the nuts 337 via a connecting plate 338 and can move synchronously with the nuts 337. During operation, rotating the bidirectional lead screw 336 causes the nuts 337 at both ends to slide synchronously in opposite directions under the action of the reverse threads. The connecting plate 338 drives the swing-out support components 334 to adjust the spacing until it matches the width of the outer bag. This optimization allows for adaptation to outer bags of different widths without replacing parts, improving the equipment's versatility. The helical drive of the bidirectional lead screw 336 has self-locking properties, ensuring the stable position of the swing-out support components 334 after adjustment and preventing changes in the opening time. At the same time, the two swing-out support components 334 move equal distances, ensuring uniform opening of the outer bag and reducing unilateral deformation.

[0037] In the finished product unloading stage, in order to solve the problem of interference between the clamp 43 and the bagging worktable 31 when the finished bags are picked up and the problem of air residue when the finished bags are stacked, this solution also made two optimizations to the bagging worktable 31 and the finished product unloading device 4 to ensure smooth unloading process and further reduce air residue.

[0038] The first optimization is to add a clearance slot 311 to the bagging worktable 31, such as Figure 6 and Figure 7 As shown, the bagging worktable 31 has a longitudinally penetrating relief groove 311 on the side near the finished product unloading device 4, the width of which matches the thickness of the clamp 43. During operation, when the finished bag reaches the unloading position, part of it is located within the relief groove 311. The unloading sliding plate 42 drives the clamp 43 to extend into the groove to grip the bag, avoiding interference with the bagging worktable 31. This design allows the clamp 43 to directly contact the finished bag, resulting in high gripping accuracy and reducing damage to the finished bag. At the same time, the relief groove 311 provides guidance for the clamp 43, preventing positional deviation during gripping.

[0039] The second optimization is to install a secondary exhaust structure above the finished product silo 41, such as... Figure 6 and Figure 11 As shown, an exhaust lifting component 44 is installed on the frame 1, directly above the finished product bin 41. Its lifting end faces downwards and is connected to an exhaust plate 45, the size of which matches the cross-section of the finished product bin 41. During operation, when the finished product bags are stacked to a preset height, the exhaust lifting component 44 drives the exhaust plate 45 to descend, pressing against the surface of the finished product bags and continuously applying pressure to expel residual air. This structure, as a supplement to the primary exhaust, further reduces residual air; simultaneously, the uniform pressure of the exhaust plate 45 makes the finished product bags stack more compactly, increasing the storage capacity of the finished product bin 41 and preventing air from re-entering during stacking.

[0040] Other equivalent technical means can be selected according to the actual application scenario. The core functions of these alternative solutions are the same as the original solutions, and the differences lie only in the specific structure or working method.

[0041] For example, the exhaust roller 61 used for primary exhaust in the original solution can be replaced with a smooth-surfaced exhaust pressure plate. Specifically, the exhaust pressure plate is fixed to the extended end of the pressing telescopic member 6, with its surface parallel to the top surface of the frame 1. When the pressing telescopic member 6 extends, the exhaust pressure plate adheres to the top surface of the frame 1, expelling air from the finished bag through planar extrusion. The working process is the same as the original solution, except that rolling extrusion is replaced by planar sliding extrusion. This alternative method is suitable for finished bags with flat surfaces and no protrusions, increasing the extrusion contact area and improving exhaust efficiency. The exhaust pressure plate here can be defined as a plate-shaped component with planar extrusion function, and its material is usually the same as that of the exhaust roller 61, ensuring a smooth surface that does not damage the outer bag.

[0042] For example, the various suction cups used in the original solution to adsorb inner and outer bags can be replaced with mechanical grippers. Specifically, the mechanical grippers are fixed at the corresponding positions of the bag-feeding rod 24 or the outer bag picking component 323, and clamp the edge of the inner or outer bag by opening and closing the grippers. Taking inner bag feeding as an example, during operation, the inner bag picking component 23 drives the mechanical grippers closer to the inner bag, the grippers close and clamp the edge of the inner bag, and it is transported to the bag-filling position by the bag-feeding rod 24. This alternative method is suitable for plastic bags with thicker materials that are not easily adsorbed by suction cups, avoiding falling off due to insufficient adsorption force; the mechanical grippers here can be defined as clamping components that realize the opening and closing action through mechanical transmission, usually including the gripper body and the drive motor or cylinder.

[0043] The bidirectional lead screw 336 for adjusting the spacing of the flap swing member 334 can also be replaced with a dual-cylinder drive structure. Specifically, two cylinders are fixed on the frame 1, and the piston rod ends are connected to the two flap swing members 334 respectively. The extension and retraction direction of the cylinders is consistent with the sliding direction of the flap swing member 334. During operation, the two cylinders are controlled to extend and retract synchronously in opposite directions, directly driving the flap swing member 334 to adjust the spacing. This alternative method has a fast adjustment speed and is suitable for scenarios that require frequent changes in the width of the outer bag. The dual-cylinder drive here can be defined as a drive method that achieves the reverse movement of components through the coordinated action of two independent cylinders. The extension and retraction stroke of the cylinders can be precisely controlled by a solenoid valve.

[0044] Furthermore, various telescopic components used in the equipment, such as the pressing telescopic component 6, the clamping telescopic component 26, and the spanning telescopic component 332, can all be selected from cylinders, electric push rods, or hydraulic rods according to actual needs. Taking the electric push rod as an example, the electric push rod is fixed at the corresponding installation position, such as the exhaust mounting bracket 5 or the bag-passing rod 24. The motor drives the lead screw to rotate, which drives the push rod to extend or retract, thereby realizing the lifting or lowering of the exhaust roller 61 or the movement of the sliding clamp 27. The working process is the same as the original solution, the difference being that the power source is changed from compressed air to electricity; the electric push rod here can be defined as an actuator that converts the rotational motion of the motor into linear telescopic motion, which has the characteristics of precise stroke and low noise, and is suitable for scenarios without compressed air supply.

[0045] To gain a clearer understanding of the specific structure and installation relationships of the various parts of the equipment, it is possible to combine... Figures 1 to 11 Further examination of the details helps to clarify the specific installation location, connection method, and working relationship of each structure, making it easier for those skilled in the art to understand and implement.

[0046] For example, the specific structure of the inner bag pushing device 2, combined with... Figure 3 and Figure 4The inner bag compartment 21 is located at the lower part of the frame 1. The inner bag sliding plate 22 is slidably connected to the top surface of the frame 1 via a guide rail. The fixed end of the inner bag picking component 23 is connected to the inner bag sliding plate 22, and the extended end faces the inner bag compartment 21. One end of the bag-penetrating rod 24 is fixed to the extended end of the inner bag picking component 23, and the other end faces the outer bag opening device 3, with the inner bag feeding suction cup 25 fixed to the end. During operation, the inner bag picking component 23 extends, the inner bag feeding suction cup 25 adsorbs the inner bag, and then the picking component retracts, the inner bag sliding plate 22 slides, and pushes the inner bag to the bagging station.

[0047] Details regarding the inner pocket pleat clamping structure, such as Figure 5 As shown, the two side-mounted bag-penetrating rods 24 are secured to the outer bag opening device 3 at one end by bolts, clamping the telescopic member 26. The extended end of the clamping telescopic member 26 faces the inside of the bag-penetrating rod 24 and is connected to the sliding clamping plate 27 by screws. The side of the sliding clamping plate 27 facing the inner bag compartment 21 is attached to and fixed with the clamping suction cup 28, and its suction surface is opposite to the suction surface of the inner bag feeding suction cup 25. When the clamping telescopic member 26 extends, the sliding clamping plate 27 drives the clamping suction cup 28 to approach the inner bag feeding suction cup 25. The two work together to pull the inner bag to form pleats. Then the sliding clamping plate 27 adheres to the side wall of the bag-penetrating rod 24, clamping the pleats by friction.

[0048] Details of the longitudinal sliding structure of the inner pocket 21 are as follows Figure 3 As shown, the inner bag compartment 21 is connected to the longitudinal slide rails at the bottom of the frame 1 on both sides by sliders. The slide rails extend in a direction perpendicular to the transverse direction, and the sliders can slide freely along the slide rails. The inner bag compartment 21 is provided with positioning bolts on its side. When tightened, the bolts can abut against the slide rails to fix the position of the inner bag compartment 21. When the amount of inner bags in the inner bag compartment 21 decreases, the positioning bolts are loosened to push the inner bag compartment 21 to slide upward along the slide rails. When replenishing inner bags, it slides downward to increase the operating space.

[0049] Details of the outer pocket flap device 3 Figure 6 and Figure 9 The bagging worktable 31 is slidably connected to the transverse slide rail of the frame 1 via a bottom slider and is located between the inner bag pushing device 2 and the finished product unloading device 4; the outer bag feeding mechanism 32 is located on the upper side of the frame 1; the mouth support mechanism 33 is fixed on the frame 1 and is located beside the transverse path between the bagging worktable 31 and the inner bag pushing device 2, and its working end can extend to the top of the bagging worktable 31.

[0050] The specific details of the outer bag feeding mechanism 32 are as follows: Figure 7As shown, the outer bag compartment 321 is fixed to the side of the frame 1 with its opening facing upwards; the outer bag sliding plate 322 is slidably connected to the longitudinal slide rail above the frame 1 via a top slider, and can slide longitudinally to above the outer bag compartment 321 or above the bagging worktable 31; the fixed end of the outer bag picking component 323 is connected to the bottom of the outer bag sliding plate 322, the protruding end faces downwards and the end is fixed with the outer bag picking suction cup 324. During operation, the outer bag sliding plate 322 slides to above the outer bag compartment 321, the outer bag picking component 323 extends to pick up the outer bag, then the picking component retracts, the sliding plate slides to above the bagging worktable 31, and the picking component extends again to place the outer bag on the worktable surface.

[0051] The multi-stage support structure of the support mechanism 33 is combined with detailed features. Figure 5 and Figure 9 The lower suction cup 331 is fixed to the top surface of the frame 1 by a bracket, located next to the sliding path of the bagging worktable 31, with the suction surface facing upwards; the mouth support telescopic component 332 is fixed to the crossbeam of the frame 1 directly above the lower suction cup 331 by a bracket, with the extended end facing downwards and the upper suction cup 333 fixed to the end, with the suction surface facing downwards; the two mouth support swing components 334 are rotatably connected to the bracket of the frame 1 by a rotating shaft, located between the lower suction cup 331 and the inner bag pushing device 2, and rotate in opposite directions; the end of the mouth support swing component 334 near the outer bag is connected to the mouth support plate 335 by a screw, and the surface of the mouth support plate 335 is arc-shaped to fit the inner wall of the outer bag opening.

[0052] Details of the adjustable spacing structure of the 334 support swing element are as follows: Figure 10 As shown, the bottom of the two swing arms 334 is welded with sliders, which are slidably connected to the transverse slide rail on the top surface of the frame 1. A bidirectional lead screw 336 is rotatably connected to the support of the frame 1 via bearings. Its axis is parallel to the transverse slide rail, and the threads at both ends rotate in opposite directions. Nuts 337 are threaded to both ends of the bidirectional lead screw 336. A connecting plate 338 is welded to the top surface of the nut 337, and the other end of the connecting plate 338 is welded and fixed to the bottom of the swing arms 334. When the bidirectional lead screw 336 is rotated, the nut 337 drives the connecting plate 338 and the swing arms 334 to slide synchronously in opposite directions to adjust the distance.

[0053] Detailed integration of the anti-interference structure of the finished product feeding device 4 Figure 6 and Figure 7 The bagging worktable 31 has a longitudinally penetrating clearance groove 311 on the side near the finished product unloading device 4; the finished product bin 41 is fixed to the end of the frame 1 with its opening facing upwards; the unloading slide plate 42 is slidably connected to the transverse slide rail of the frame 1 via a slider and is located between the bagging worktable 31 and the finished product bin 41; the clamp 43 is fixed to the side of the unloading slide plate 42 near the bagging worktable 31 by bolts, with its clamping end facing the clearance groove 311. During operation, the unloading slide plate 42 drives the clamp 43 to extend into the clearance groove 311 to clamp the finished bag, and then slides above the finished product bin 41 to release the clamp 43 and unload the material.

[0054] Details of the secondary exhaust structure above finished product silo 41 are as follows Figure 11 As shown, the exhaust lifting component 44 is fixed to the crossbeam of the frame 1 by a bracket, located directly above the finished product bin 41, with the lifting end facing downwards. The lifting end of the exhaust lifting component 44 is connected to the exhaust plate 45 by screws. The exhaust plate 45 is a rectangular plate, with its length and width slightly smaller than the internal length and width of the finished product bin 41, respectively. A rubber pad is attached to the bottom surface of the exhaust plate 45. When the finished product bags in the finished product bin 41 are stacked to a preset height, the exhaust lifting component 44 drives the exhaust plate 45 to descend and press against the surface of the finished product bags, holding it for a period of time before rising again.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A bagging device, characterized in that, include: The frame (1) is provided with an inner bag pushing device (2), an outer bag opening device (3) and a finished product unloading device (4) arranged in sequence along the horizontal direction on the frame (1). The exhaust mounting bracket (5) is located above the frame (1) and between the outer bag opening device (3) and the finished product unloading device (4); The downward pressure telescopic component (6) is provided on the exhaust mounting frame (5). The extended end of the downward pressure telescopic component (6) faces the frame (1) and is provided with an exhaust roller (61). The downward pressure telescopic component (6) can drive the exhaust roller (61) to descend and fit against the frame (1) to discharge the gas in the finished product bag conveyed to the finished product unloading device (4).

2. The bagging device according to claim 1, characterized in that, The inner bag pushing device (2) includes: The inner bag compartment (21) is located at the lower part of the frame (1); The inner bag sliding plate (22) is slidably connected to the frame (1) in the transverse direction; The inner bag material handling component (23) is located on the inner bag sliding plate (22) and its extended end faces the inner bag compartment (21). Several bag-piercing rods (24) are provided, one end of which is located at the protruding end of the inner bag feeding device (23), and the other end of the bag-piercing rods (24) faces the outer bag opening device (3) and is provided with an inner bag feeding suction cup (25).

3. The bagging device according to claim 2, characterized in that, The two bag-piercing rods (24) located on the side are provided with clamping telescopic members (26) at one end near the outer bag opening device (3). The extended end of the clamping telescopic member (26) is provided with a sliding clamping plate (27). The sliding clamping plate (27) is provided with a clamping suction cup (28) facing the inner bag compartment (21). The clamping suction cup (28) can approach the inner bag feeding suction cup (25) under the sliding action of the sliding clamp (27), causing the inner bag to wrinkle. The sliding clamp (27) can cooperate with the bag inserting rod (24) to clamp the inner bag wrinkles.

4. A bagging device according to claim 2, characterized in that, The inner bag compartment (21) is longitudinally slidably connected to the lower part of the frame (1).

5. A bagging device according to claim 1, characterized in that, The outer bag opening device (3) includes: The bagging workbench (31) is slidably connected to the frame (1) and located between the inner bag pushing device (2) and the finished product unloading device (4); The outer bag feeding mechanism (32) is located on the frame (1) and is used to move the outer bag to the bagging worktable (31); The opening support mechanism (33) is located on the frame (1) and between the bagging worktable (31) and the inner bag pushing device (2), and is used to open the outer bag opening located on the bagging worktable (31).

6. A bagging device according to claim 5, characterized in that, The outer bag feeding mechanism (32) includes: The outer bag compartment (321) is located on the side of the frame (1); The outer bag sliding plate (322) is longitudinally slidably connected to the frame (1) above, and can slide to the bagging workbench (31) or the outer bag compartment (321) above; The outer bag picking component (323) is located on the outer bag sliding plate (322). The extended end of the outer bag picking component (323) faces downward and has an outer bag picking suction cup (324). The outer bag picking component (323) can move the outer bag in the outer bag compartment (321) to the bagging worktable (31) under the longitudinal sliding drive of the outer bag sliding plate (322).

7. A bagging device according to claim 5, characterized in that, The support mechanism (33) includes: The lower suction cup (331) is located on the frame (1) and is used to adsorb the bottom wall of the outer bag opening; A mouth-supporting telescopic component (332) is provided on the frame (1) and located above the lower suction cup (331). The extended end of the mouth-supporting telescopic component (332) faces the lower suction cup (331) and has an upper suction cup (333). The upper suction cup (333) is used to adsorb the top wall of the outer bag opening. Two support swing members (334) are both provided on the frame (1) and located between the lower suction cup (331) and the inner bag pushing device (2). The two support swing members (334) rotate in opposite directions. The swing end of the support swing member (334) is provided with a support plate (335). The support plate (335) can be supported on the inner wall of the outer bag opening under the swing of the support swing member (334).

8. A bagging device according to claim 7, characterized in that, The two support swing members (334) are slidably mounted on the frame (1) and slide in opposite directions; the support mechanism (33) also includes a bidirectional lead screw (336) rotatably connected to the frame (1), and both ends of the bidirectional lead screw (336) are threaded with nuts (337). The two support swing members (334) are respectively connected to the two nuts (337) through a connecting plate (338).

9. A bagging device according to claim 5, characterized in that, The bagging workbench (31) has a clearance groove (311) on the side near the finished product unloading device (4), and the finished product unloading device (4) includes: Finished product warehouse (41) is located on the frame (1); The material feeding slide plate (42) is laterally slidably connected to the frame (1); A clamp (43) is provided on the side of the feeding slide plate (42) near the bagging worktable (31). The clamp (43) can enter the relief groove (311) under the sliding drive of the feeding slide plate (42) to clamp the finished bag located in the relief groove (311).

10. A bagging device according to claim 9, characterized in that, The finished product unloading device (4) also includes: An exhaust lifting component (44) is provided on the frame (1) and located above the finished product warehouse (41). The lifting end of the exhaust lifting component (44) is provided with an exhaust plate (45), which can descend and press against the finished product bag in the finished product warehouse (41).

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