A wrapping machine

Abstract

The utility model provides a kind of roll packing machine, comprising: roll packing drive mechanism, membrane supply mechanism and welding mechanism;Roll packing drive mechanism includes roll packing conveying assembly, first side conveying assembly, lifting drive assembly, upper roll packing assembly and translation drive assembly, upper roll packing assembly includes mounting bracket, upper conveying assembly and second side conveying assembly;Membrane supply mechanism and welding mechanism are set on mounting bracket, and membrane supply mechanism is conveyed to roll packing space by membrane inlet, and welding mechanism is movably inserted into roll packing space from membrane inlet.The roll packing machine of the utility model can roll different mattresses into different diameter cylindrical long rolls according to actual needs, and can also achieve rolling for smaller diameter cylindrical long rolls;Moreover, it can stably discharge;Membrane supply mechanism absorbs part of packaging film by vacuum suction, so that the packaging film will not run off when the film cutting assembly cuts the packaging film, improving the success rate of cutting, reducing manual participation and making operation more convenient.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to a roll wrapping machine. Background Technology

[0002] Mattresses need to be packaged before leaving the factory. In order to further reduce the size of the mattress and facilitate transportation, sometimes the mattress is rolled up into a long cylindrical roll. The packaged mattress not only reduces the size and facilitates transportation, but the protective layer of the packaging can also reduce the damage to the mattress during transportation.

[0003] The rolling and wrapping of mattresses is generally done using a mattress rolling and wrapping machine. During operation, the mattress is first placed into the mattress conveyor channel of the machine, and then fed into the rolling and wrapping space for packaging. As the mattress rolls, the packaging film also rolls up, thus wrapping the mattress after rolling and initially restraining it to prevent it from bursting open. While existing mattress rolling and wrapping machines can adjust the size of the rolling and wrapping space, the adjustment range is not flexible enough to roll the mattress into a small-diameter cylindrical roll. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and provide a wrapping machine.

[0005] One embodiment of the present invention provides a wrapping machine, comprising: a wrapping drive mechanism, a film supply mechanism, and a welding mechanism;

[0006] The roll-up drive mechanism includes a roll-up conveying assembly, a first-side conveying assembly, a lifting drive assembly, an upper roll-up assembly, and a translation drive assembly; The first side conveying assembly is disposed at the conveying end of the roll conveying assembly, and the first side conveying assembly has an upwardly extending first side roll driving part formed on the side facing the roll conveying assembly; The lifting drive assembly is driven to connect to the first side conveying assembly and is used to drive the first side conveying assembly to lift. The upper roll-up assembly is disposed above the roll-up conveying assembly. The upper roll-up assembly includes a mounting frame, an upper conveying assembly, and a second side conveying assembly. The upper conveying assembly and the second side conveying assembly are on the mounting frame. An upper roll-up drive portion is formed at the bottom of the upper conveying assembly. A second side roll-up drive portion is formed on the side of the second side conveying assembly facing the first side conveying assembly. The first side roll-up drive portion, the second side roll-up drive portion, the top of the roll-up conveying assembly, and the upper roll-up drive portion together form a roll-up space. The roll-up space has a film inlet. The translation drive assembly is driven to connect with the mounting frame. Under the drive of the translation drive assembly, the mounting frame moves toward the first side conveyor assembly and the roll pack conveyor assembly and moves away from the first side conveyor assembly and the roll pack conveyor assembly. When the mounting frame moves toward the first side conveyor assembly and the upper roll pack assembly under the drive of the translation drive assembly, the upper roll pack drive part approaches the top of the roll pack conveyor assembly, and the second side roll pack drive part approaches the first side roll pack drive part. When the mounting frame moves away from the first side conveyor assembly and the upper roll pack assembly under the drive of the translation drive assembly, the upper roll pack drive part moves away from the top of the roll pack conveyor assembly, and the second side roll pack drive part moves away from the first side roll pack drive part. The film supply mechanism and the welding mechanism are mounted on the mounting frame. The film supply mechanism delivers the packaging film to the roll packaging space through the film inlet, and the welding mechanism extends movably into the label space from the film inlet.

[0007] In some optional embodiments, the first side conveying assembly includes a lifting frame, a side belt power module, two drive rollers, a side conveyor belt, and a plurality of side pressure rollers. The lifting drive assembly is drivenly connected to the lifting frame. The side belt power module is disposed on the lifting frame and drivenly connected to the two drive rollers. The two drive rollers are disposed on the lifting frame from top to bottom. The side pressure rollers are disposed between the two drive rollers. The side conveyor belt is arranged around the drive rollers and the side pressure rollers. The first side wrapping drive unit is formed on the side of the side conveyor belt facing the wrapping conveying assembly.

[0008] In some alternative embodiments, the wrapping machine further includes an inclined guide rail extending obliquely between the wrapping conveyor assembly and the first side conveyor assembly, the mounting bracket engaging with the inclined guide rail and moving along the inclined guide rail under the drive of the translation drive assembly.

[0009] In some alternative embodiments, a discharge guide plate is provided on the side of the first side conveying assembly away from the roll conveying assembly, and the discharge guide plate gradually extends downward at an angle away from the roll conveying assembly.

[0010] In some alternative embodiments, the wrapping machine further includes a feeding conveyor assembly disposed on the side of the first side conveyor assembly away from the conveyor assembly, and the discharge guide plate is located between the first side conveyor assembly and the feeding conveyor assembly.

[0011] In some alternative embodiments, the roll-up drive mechanism further includes a pressing conveyor assembly disposed thereon.

[0012] In some optional embodiments, the membrane supply mechanism includes a membrane release assembly, a membrane tensioning assembly, a membrane adsorption assembly, a membrane cutting assembly, and a membrane guide plate assembly; The membrane release assembly is used to temporarily store and release the packaging film. The membrane tensioning assembly, the membrane adsorption assembly, the membrane cutting assembly, and the membrane guide plate assembly are arranged sequentially in the film supply direction from the membrane release assembly to the membrane inlet. The membrane adsorption assembly has multiple vacuum adsorption holes on one side. The membrane cutting assembly includes a cutting tool and a tool translation assembly. The tool translation assembly is driven to the cutting tool, and the cutting tool moves back and forth between the membrane adsorption assembly and the membrane guide plate assembly under the drive of the tool translation assembly.

[0013] In some optional embodiments, the membrane guide plate assembly includes a first guide plate and a second guide plate arranged opposite to each other, a membrane supply channel is formed between the first guide plate and the second guide plate, the membrane supply channel is in communication with the membrane inlet, a clearance gap is formed between the side of the first guide plate away from the membrane inlet and the membrane adsorption assembly, the cutting tool passes through the clearance gap and extends to the end of the membrane supply channel away from the membrane inlet, and the tool translation assembly is located on the side of the first guide plate away from the membrane supply channel.

[0014] In some alternative embodiments, the first guide plate is provided with a guide portion on the side away from the film inlet, the guide portion is located within the clearance gap, and the guide portion gradually moves away from the film supply channel in a direction away from the film inlet.

[0015] In some optional embodiments, the cutting tool includes two blades and two blade clamps. The two blades are disposed between the two blade clamps, which clamp and lock the two blades. The two blades extend from both sides of the blade clamps. The tool translation assembly is driven to the blade clamps. The blade clamps move back and forth between the membrane adsorption assembly and the membrane guide plate assembly under the drive of the tool translation assembly. The blades are inclined relative to the moving direction of the blade clamps.

[0016] Compared to existing technologies, the wrapping machine of this invention uses a wrapping conveyor assembly, a first-side wrapping assembly, and an upper wrapping assembly to enclose the wrapping space. The size of the wrapping space can be adjusted by moving the upper wrapping assembly and raising or lowering the first-side conveyor assembly. This allows different mattresses to be wrapped into cylindrical rolls of different diameters according to actual needs, and even smaller diameter cylindrical rolls can be rolled. Moreover, it can stably feed materials. The film feeding mechanism uses vacuum adsorption to partially adsorb the packaging film, so that the packaging film will not deviate when the film cutting assembly cuts the packaging film, improving the success rate of cutting, reducing manual intervention, and making operation more convenient.

[0017] To provide a clearer understanding of this invention, the specific embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a wrapping machine according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of a wrapping machine according to an embodiment of the present invention.

[0019] Figure 3 This is a cross-sectional view of a roll-up driving mechanism according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of a partial structure of a roll-up driving mechanism according to an embodiment of the present invention; Figure 5 This is a schematic diagram of one side of a partial structure of a roll-and-bundle drive mechanism according to an embodiment of the present invention; Figure 6 This is a schematic diagram of a partial structure of the roll-up drive mechanism according to an embodiment of the present invention, when it is necessary to roll a mattress into a long cylindrical roll with a small diameter. Figure 7 This is a schematic diagram of a partial structure of the roll-up drive mechanism according to an embodiment of the present invention, when it is necessary to roll a mattress into a long cylindrical roll with a large diameter. Figure 8 This is a cross-sectional view of a portion of the structure of a wrapping machine according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the film supply mechanism according to an embodiment of the present invention; Figure 10 This is a cross-sectional view of a film supply mechanism according to an embodiment of the present invention; Figure 11 This is a cross-sectional view of a membrane adsorption assembly, a membrane cutting assembly, and a membrane guide plate assembly according to an embodiment of the present invention; Figure 12 This is an exploded view of a cutting tool according to an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures: 10. Wrapping drive mechanism; 110. Wrapping conveyor assembly; 111. Wrapping space; 1111. Film inlet; 120. First side conveyor assembly; 121. First side wrapping drive unit; 122. Lifting frame; 123. Side belt power module; 124. Drive roller; 125. Side conveyor belt; 126. Side pressure roller; 127. Discharge guide plate; 130. Lifting drive assembly; 131. Lifting rack 31; 140. Upper wrapping assembly; 141. Mounting frame; 142. Upper conveyor assembly; 1421. Upper wrapping drive unit; 143. Second side conveyor assembly; 1431. Second side wrapping drive unit; 1432. Side wrapping drive roller; 150. Translation drive assembly; 160. Inclined guide rail; 170. Discharge conveyor assembly; 171. Baffle plate; 172. Docking guide plate; 20. Film supply mechanism; 210 211. Membrane release assembly; 220. Idler roller; 221. Membrane tensioning assembly; 222. Mounting plate; 2211. Adjustment groove; 2212. Adjustment block; 222. First guide roller; 2221. Membrane passage gap; 223. Second guide roller; 224. Position adjustment assembly; 225. Third guide roller; 226. Dust removal brush; 230. Membrane adsorption assembly; 231. Vacuum adsorption hole; 240. Membrane cutting assembly; 241. Cutting tool; 2411. Blade; 2412. Tool clamp; 2413. Membrane stop block; 242. Tool translation assembly; 250. Membrane guide plate assembly; 251. First guide plate; 2511. Guide section; 252. Second guide plate; 253. Membrane supply channel; 254. Clearance gap; 30. Welding mechanism; 31. Telescopic cylinder; 32. Hot welding strip; 40. Pressing and conveying assembly; 41. Pressing drive assembly. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. In addition, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 limitations on this utility model.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In the description of this utility model, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] Please see Figure 1 and Figure 2 One embodiment of this utility model provides a wrapping machine, including: a wrapping drive mechanism 10, a film supply mechanism 20, and a welding mechanism 30. Please see Figures 3 to 5 The roll-up driving mechanism 10 includes a roll-up conveying assembly 110, a first side conveying assembly 120, a lifting drive assembly 130, an upper roll-up assembly 140, and a translation drive assembly 150. The first side conveying assembly 120 is disposed at the conveying end of the roll conveying assembly 110, and the first side conveying assembly 120 has an upwardly extending first side roll driving part 121 formed on the side facing the roll conveying assembly 110; The lifting drive assembly 130 is driven to be connected to the first side conveying assembly 120 and is used to drive the first side conveying assembly 120 to lift. The upper wrapping assembly 140 is disposed above the wrapping conveying assembly 110. The upper wrapping assembly 140 includes a mounting frame 141, an upper conveying assembly 142, and a second side conveying assembly 143. The upper conveying assembly 142 and the second side conveying assembly 143 are on the mounting frame 141. An upper wrapping drive part 1421 is formed at the bottom of the upper conveying assembly 142. A second side wrapping drive part 1431 is formed on the side of the second side conveying assembly 143 facing the first side conveying assembly 120. The first side wrapping drive part 121, the second side wrapping drive part 1431, the top of the wrapping conveying assembly 110, and the upper wrapping drive part 1421 together form a wrapping space 111. The wrapping space 111 has a film inlet 1111. The translation drive assembly 150 is driven to the mounting frame 141. Under the drive of the translation drive assembly 150, the mounting frame 141 moves toward the first side conveyor assembly 120 and the roll pack conveyor assembly 110 and moves away from the first side conveyor assembly 120 and the roll pack conveyor assembly 110. When the mounting frame 141 moves toward the first side conveyor assembly 120 and the upper roll pack assembly 140 under the drive of the translation drive assembly 150, the upper roll pack drive part 1421 approaches the top of the roll pack conveyor assembly 110, and the second side roll pack drive part 1431 approaches the first side roll pack drive part 121. When the mounting frame 141 moves away from the first side conveyor assembly 120 and the upper roll pack assembly 140 under the drive of the translation drive assembly 150, the upper roll pack drive part 1421 moves away from the top of the roll pack conveyor assembly 110, and the second side roll pack drive part 1431 moves away from the first side roll pack drive part 121. The film supply mechanism 20 and the welding mechanism 30 are mounted on the mounting frame 141. The film supply mechanism 20 delivers the packaging film to the roll packaging space 111 through the film inlet 1111, and the welding mechanism 30 extends movably into the label space from the film inlet 1111.

[0026] The working principle of the wrapping drive mechanism 10 of a wrapping machine according to an embodiment of the present invention will be described below: The mattress enters the roll-up conveyor assembly 110, which transports it towards the first side conveyor assembly 120. The first side conveyor assembly 120 rises under the drive of the lifting drive assembly 130, causing the first side roll-up drive section 121 to be at a suitable height above the roll-up conveyor assembly 110 to block the end of the mattress. Meanwhile, the upper roll-up assembly 140 moves towards the roll-up conveyor assembly 110 and the first side conveyor assembly 120 under the drive of the translation drive assembly 150. This causes the upper roll-up drive section 1421 of the upper roll-up assembly 140 to approach the roll-up conveyor assembly 110, and the second side roll-up drive section 1431 to approach the first side roll-up drive section 121. This creates a roll-up space 111 formed between the first side roll-up drive section 121, the second side roll-up drive section 1431, the upper roll-up drive section 1421, and the roll-up conveyor assembly 110, thus allowing the end of the mattress to pass through. After the end of the mattress comes into contact with the first side roll-up drive unit 121, it is conveyed upward by the first side roll-up drive unit 121, causing the end of the mattress to move toward the upper roll-up drive unit 1421. Then, the end of the mattress comes into contact with the upper roll-up drive unit 1421 and is driven by the upper roll-up drive unit 1421 to move toward the second side roll-up drive unit 1431. When the end of the mattress comes into contact with the second side roll-up drive unit 1431, the end of the mattress is driven by the second side roll-up drive unit 1431 toward the roll-up conveying assembly 110, thereby guiding the end of the mattress to move downward. Then, the end of the mattress comes into contact with the top of the mattress itself. At this time, the mattress is roughly guided to bend into a circle. Then, the mattress is continuously driven to move by the first side roll-up drive unit 121, the second side roll-up drive unit 1431, the upper roll-up drive unit 1421 and the roll-up conveying assembly 110 to achieve the winding within the roll-up space 111. It should be noted that during the winding process, a film supply mechanism 20 will also convey the packaging film from the film inlet 1111 into the wrapping space 111. The mattress and the packaging film can be rolled together, or the packaging film can be attached to the surface of the mattress after the mattress is rolled. After the mattress is rolled, the mattress will drive the packaging film to continue rolling, so that the packaging film wraps around the mattress multiple times. Then, the welding mechanism 30 welds the packaging film, so that the different layers of packaging film are welded together to complete the fixation. This prevents the mattress from bursting open through the packaging film. Then, the packaging film is cut to complete the mattress wrapping operation. After the mattress is wrapped, the first side wrapping assembly descends under the drive of the lifting drive assembly 130, and then the wrapping conveying assembly 110 conveys the mattress, which is wrapped into a long cylindrical roll, away.

[0027] The diameter of the cylindrical roll after the mattress is rolled up depends on the height difference between the upper rolling drive unit 1421 and the rolling conveyor assembly 110, as well as the distance between the first side rolling drive unit 121 and the second side rolling drive unit 1431. The height of the rolling conveyor assembly 110 remains constant; therefore, the height difference between the upper rolling drive unit 1421 and the rolling conveyor assembly 110 depends on the position of the upper rolling drive unit 1421. The first side rolling drive unit 121 can only move up and down; therefore, the distance between the first side rolling drive unit 121 and the second side rolling drive unit 1431 depends on the position of the second side rolling drive unit 1431. Thus, the height difference between the upper rolling drive unit 1421 and the rolling conveyor assembly 110, as well as the distance between the first side rolling drive unit 121 and the second side rolling drive unit 1431, can be synchronously adjusted by moving the mounting bracket 141. The height of the first side rolling drive unit 121 is adaptively adjusted according to the height of the upper rolling drive unit 1421. (See also...) Figure 6 When it is necessary to roll the mattress into a long, cylindrical roll with a small diameter, it is only necessary to lower the upper rolling drive unit 1421 to a sufficiently low height and bring the second side rolling drive unit 1431 close enough to the first side rolling drive unit 121, while the first side rolling drive unit 121 is lowered adaptively. See also... Figure 7 When it is necessary to roll the mattress into a long cylindrical roll with a large diameter, it is only necessary to raise the upper rolling drive unit 1421 to a sufficient height and ensure that the second side rolling drive unit 1431 is sufficiently far away from the first side rolling drive unit 121, while the first side rolling drive unit 121 rises adaptively. Therefore, the diameter of the cylindrical roll that the rolling space 111 accommodates depends on the positions of the second side rolling drive unit 1431 and the upper rolling drive unit 1421. The position of the first side rolling drive unit 121 is only adjusted adaptively and does not affect the diameter of the cylindrical roll that the rolling space 111 accommodates. Since both the second side rolling drive unit 1431 and the upper rolling drive unit 1421 are mounted on the mounting bracket 141 and move synchronously, the size adjustment of the rolling space 111 is relatively convenient and intuitive.

[0028] It should be noted that the diameter of the cylindrical roll after the mattress is rolled up depends on the thickness of the mattress and the length of the mattress in the conveying direction of the roll conveying assembly 110.

[0029] It should be noted that the conveying end of the roll conveyor assembly 110 refers to the position where the mattress detaches from the roll conveyor assembly 110 under its conveying action.

[0030] The specific structure of the translation drive assembly 150 can be selected according to actual needs. For example, the translation drive assembly 150 can be a lead screw drive assembly, a rotary motor translation drive assembly 150, a belt translation drive assembly 150, a cylinder translation drive assembly 150, or a linear motor translation drive assembly 150, etc., and is not limited to this example.

[0031] In some alternative embodiments, the upper conveying assembly 142 is an upper belt conveyor assembly, and the upper roll drive unit 1421 is formed on the belt conveying surface at the bottom of the upper belt conveyor assembly. The friction between the belt conveying surface at the bottom of the upper belt conveyor assembly and the mattress drives the mattress to move, thereby realizing the conveying of the mattress. The structure of the upper belt conveyor assembly is well known to those skilled in the art and will not be described in detail here. Of course, the structure of the upper conveyor assembly 142 is not limited to this, and those skilled in the art can also choose other suitable structures based on the teachings of this utility model, such as a mesh belt conveyor assembly or a roller conveyor assembly, etc.

[0032] In some alternative embodiments, the first side conveying assembly 120 is a side belt conveying assembly, and the first side wrapping drive unit 121 is formed on the belt conveying surface of the first side conveying assembly facing the wrapping conveying assembly 110. The friction between the belt conveying surface on the side of the first side conveying assembly and the mattress drives the mattress to move, thereby realizing the conveying of the mattress. Of course, the structure of the side conveying assembly is not limited to this, and those skilled in the art can also choose other suitable structures based on the teachings of this utility model, such as a mesh belt conveying assembly or a roller conveying assembly, etc.

[0033] Please see Figure 5 In some optional embodiments, the first side conveying assembly includes a lifting frame 122, a side belt power module 123, two drive rollers 124, a side conveying belt 125, and a plurality of side pressure rollers 126. The lifting drive assembly 130 is drivenly connected to the lifting frame 122. The side belt power module 123 is disposed on the lifting frame 122 and drivenly connected to the two drive rollers 124. The two drive rollers 124 are disposed on the lifting frame 122 from top to bottom. The side pressure rollers 126 are disposed between the two drive rollers 124. The side conveying belt 125 is arranged around the drive rollers 124 and the side pressure rollers 126. The first side wrapping drive unit 121 is formed on the side of the side conveying belt 125 facing the wrapping conveying assembly 110. Since the first side conveying assembly needs to be adaptively adjusted according to the height of the upper roll drive unit 1421, the position of the mattress against the first side conveying assembly is not fixed. Therefore, a side pressure roller 126 is added so that the side conveying belt 125 between the two drive rollers 124 can be supported by the side pressure roller 126, preventing the end of the mattress from bending the side conveying belt 125 and affecting the conveying of the mattress.

[0034] In some alternative embodiments, the second side conveying assembly 143 includes a plurality of side roll-up drive rollers 1432 rotatably mounted on the mounting frame 141, with a second side roll-up drive portion 1431 formed on the side of the side roll-up drive rollers 1432 facing the roll-up space 111. When the side roll-up drive rollers 1432 rotate, the friction between the outer peripheral surface of the side roll-up drive rollers 1432 and the mattress causes the mattress to move.

[0035] The specific structure of the lifting drive assembly 130 can be selected according to actual needs. For example, the lifting drive assembly 130 can be a lead screw drive assembly, a rotary motor translation drive assembly 150, a belt translation drive assembly 150, a cylinder translation drive assembly 150, or a linear motor translation drive assembly 150, etc., and is not limited to this example. In this embodiment, the lifting drive assembly 130 includes two lifting racks, two lifting gears, and a lifting drive motor. The two lifting racks are respectively arranged on both sides of the lifting frame 122. The lifting gears are rotatably arranged on the lifting frame 122 and mesh with the lifting racks. The lifting drive motor is arranged on the lifting frame 122 and is driven by the lifting gears. The lifting drive motor drives the lifting gears to rotate, thereby causing the lifting gears to rise and fall along the lifting racks, thus driving the lifting frame 122 to rise and fall. This design helps to improve the accuracy of the lifting of the lifting frame 122 and avoids the low accuracy caused by using cylinder-type drive assemblies. It should be clarified that the first side conveying component 120 in this utility model adopts a straight up and down lifting method, rather than a flip-type lifting method. If a flip-type lifting method is adopted, the flipping of the first side conveying component 120 will also change the diameter of the roll space 111, and it will be impossible to roll it into a long cylindrical roll with a smaller diameter.

[0036] In some alternative embodiments, the wrapping drive mechanism 10 of the wrapping machine further includes an inclined guide rail 160 that extends inclinedly between the wrapping conveyor assembly 110 and the first side conveyor assembly 120. The mounting frame 141 is movably engaged with the inclined guide rail 160 and moves along the inclined guide rail 160 under the drive of the translation drive assembly 150. The angle of the inclined guide rail 160 needs to be adjusted according to the actual situation so that when the mounting frame 141 moves along the inclined guide rail 160, the change in the height difference between the upper package drive unit 1421 and the package conveying assembly 110 needs to match the change in the distance between the first side package drive unit 121 and the second side package drive unit 1431. This achieves the purpose of synchronously adjusting the height difference between the upper package drive unit 1421 and the package conveying assembly 110 and the distance between the first side package drive unit 121 and the second side package drive unit 1431 when the mounting frame 141 moves. In this embodiment, the inclined guide rail 160 forms a ° angle with the top of the package conveying assembly 110. When the mounting frame 141 moves along the inclined guide rail 160, the change in the height difference between the upper package drive unit 1421 and the package conveying assembly 110 is the same as the change in the distance between the first side package drive unit 121 and the second side package drive unit 1431.

[0037] In some alternative embodiments, a discharge guide plate 127 is provided on the side of the first side conveying assembly 120 away from the roll-up conveying assembly 110. The discharge guide plate 127 gradually extends downward in the direction away from the roll-up conveying assembly 110. After the mattress is rolled up, the first side conveying assembly 120 descends until the discharge guide plate 127 is at a height approximately level with the top of the roll-up conveying assembly 110. Then the mattress can move towards the first side conveying assembly 120 under the conveying of the roll-up conveying assembly 110. The top of the first side conveying assembly 120 can also help move the rolled-up mattress onto the discharge guide plate 127. After the mattress reaches the discharge guide plate 127, it rolls off the discharge guide plate 127.

[0038] In some optional embodiments, the wrapping drive mechanism 10 of the wrapping machine further includes a feeding conveyor assembly 170, which is disposed on the side of the first side conveyor assembly 120 away from the conveyor assembly. A discharge guide plate 127 is located between the first side conveyor assembly 120 and the feeding conveyor assembly 170. After the mattress rolls off the discharge guide plate 127, it moves onto the feeding conveyor assembly 170. The conveying direction of the feeding conveyor assembly 170 is approximately parallel to the axis of the cylindrical rolled mattress, thus facilitating the feeding conveyor assembly 170 to move the cylindrical rolled mattress in a suitable posture to the next process. Typically, the next process requires the cylindrical rolled mattress to be placed into an explosion-proof bag. Therefore, the feeding conveyor assembly 170 moves the cylindrical rolled mattress in a direction parallel to the axis of the cylindrical rolled mattress, thereby facilitating the insertion of the head of the cylindrical rolled mattress into the explosion-proof bag.

[0039] In some optional embodiments, a baffle plate 171 is provided on the side of the unloading conveying assembly 170 away from the first side conveying assembly 120. After the mattress rolls off the discharge guide plate 127 and moves onto the unloading conveying assembly 170, the baffle plate 171 blocks the mattress, preventing it from rolling off the unloading conveying assembly 170. In this embodiment, a docking guide plate 172 is also provided on the side of the unloading conveying assembly 170 facing the first side conveying assembly 120. After the discharge guide plate 127 descends with the first side conveying assembly 120, the end of the discharge guide plate 127 corresponds to the end of the docking guide plate 172, allowing the mattress to roll from the discharge guide plate 127 onto the docking guide plate 172, and then from the docking guide plate 172 onto the unloading conveying assembly 170, thus improving the stability of mattress conveying.

[0040] The specific structure of the feeding conveyor assembly 170 can be selected according to actual needs. For example, the feeding conveyor assembly 170 can be a mesh belt conveyor assembly, a roller conveyor assembly, a chain conveyor assembly, a belt conveyor assembly, etc., and is not limited to this example.

[0041] The film supply mechanism 20 is used to convey packaging film, and its structure can be designed according to actual needs. For example, please refer to [reference needed]. Figures 8 to 10 In some optional embodiments, the membrane supply mechanism 20 includes a membrane release assembly 210, a membrane tensioning assembly 220, a membrane adsorption assembly 230, a membrane cutting assembly 240, and a membrane guide assembly 250, all of which are mounted on the mounting frame 141.

[0042] The membrane release assembly 210 is used to temporarily store and release the packaging film. The membrane tensioning assembly 220, the membrane adsorption assembly 230, the membrane cutting assembly 240, and the membrane guide plate assembly 250 are arranged sequentially in the film supply direction from the membrane release assembly 210 to the membrane inlet 1111.

[0043] The membrane adsorption assembly 230 has multiple vacuum adsorption holes 231 on one side. The membrane adsorption assembly 230 is connected to a negative pressure generating device. After the negative pressure generating device is started, a negative pressure can be formed at the vacuum adsorption holes 231, which is used to adsorb the packaging film.

[0044] The membrane cutting assembly 240 includes a cutting tool 241 and a tool translation assembly 242. The tool translation assembly 242 is driven to the cutting tool 241. The cutting tool 241 moves back and forth between the membrane adsorption assembly 230 and the membrane guide plate assembly 250 under the drive of the tool translation assembly 242.

[0045] The working principle of the film supply mechanism 20 according to one embodiment of the present invention will be explained below: A roll containing the packaging film is installed in the film release assembly 210. The packaging film passes around the film tensioning assembly 220, then through the film adsorption assembly 230, the film cutting assembly 240, and the film guide assembly 250, finally entering the roll-up space 111 through the film inlet 1111. After the mattress is rolled up and the packaging film is welded, the packaging film needs to be cut. Since the portion of the packaging film between the film cutting assembly 240 and the mattress is relatively fixed, the portion between the film cutting assembly 240 and the film release assembly 210 is movable when the film adsorption assembly 230 is not activated, allowing for cutting. There is a possibility that the cutting blade 241 may move the packaging film, causing the packaging film to continue to be released from the film release component 210, which affects the cutting blade 241's ability to cut the packaging film. However, after the film adsorption component 230 is activated, the negative pressure formed at the vacuum adsorption hole 231 causes the packaging film to be adsorbed onto the film adsorption component 230. The portion of the packaging film located between the film cutting component 240 and the film release component 210 is fixed and will not move or deviate, allowing the cutting blade 241 to accurately and stably cut the packaging film under the drive of the blade translation component 242, thus improving the success rate of cutting the packaging film.

[0046] The specific structure of the tool translation assembly 242 can be selected according to actual needs. For example, the tool translation assembly 242 can be a lead screw drive assembly, a rotary motor translation drive assembly 150, a belt translation drive assembly 150, a cylinder translation drive assembly 150, or a linear motor translation drive assembly 150.

[0047] In some optional embodiments, the film guide assembly 250 includes a first guide plate 251 and a second guide plate 252 arranged opposite to each other. A film supply channel 253 is formed between the first guide plate 251 and the second guide plate 252. The film supply channel 253 communicates with the film inlet 1111. A clearance gap 254 is formed between the side of the first guide plate 251 away from the film inlet 1111 and the film adsorption assembly 230. The cutting tool 241 passes through the clearance gap 254 and extends to the end of the film supply channel 253 away from the film inlet 1111. The tool translation assembly 242 is located on the side of the first guide plate 251 away from the film supply channel 253. After the packaging film is cut, the end of the packaging film is located at the end of the film supply channel 253 away from the film inlet 1111. With the guidance of the first guide plate 251 and the second guide plate 252, the end of the packaging film can easily enter the film supply channel 253 and then enter the roll-up space 111 from the film inlet 1111. In this embodiment, the film supply channel 253 extends from top to bottom, the film inlet 1111 is located at the bottom of the film supply channel 253, and the cutting blade 241 is located at the top of the film supply channel 253. The film tensioning assembly 220 and the film adsorption assembly 230 are located above the cutting blade 241. This makes it convenient to use the gravity of the packaging film to make the end of the packaging film face down and align with the film supply channel 253.

[0048] In some alternative embodiments, the first guide plate 251 and the second guide plate 252 gradually move closer to each other in the direction of the film inlet 1111, thereby facilitating the alignment of the end of the packaging film with the film inlet 1111 and improving the accuracy and stability of the packaging film delivery.

[0049] Please see Figure 11 In some optional embodiments, a guide portion 2511 is provided on the side of the first guide plate 251 away from the film inlet 1111. The guide portion 2511 is located within the clearance gap 254. The guide portion 2511 gradually moves away from the film supply channel 253 in the direction away from the film inlet 1111. Since the packaging film is relatively light and soft, after the packaging film is cut, the end of the packaging film may swing back and forth and enter the clearance gap 254. The purpose of the guide portion 2511 is to guide the end of the packaging film towards the film supply channel 253 when it moves downward after being conveyed, thus preventing the end of the packaging film from passing through the clearance gap 254 and moving to the side of the first guide plate 251 away from the film supply channel 253.

[0050] In some optional embodiments, the film tensioning assembly 220 includes a mounting plate 221, a first guide roller 222, and a second guide roller 223. The first guide roller 222 and the second guide roller 223 are rotatably mounted on the mounting plate 221 in a direction close to the film adsorption assembly 230. A film-passing gap 2221 is formed between the first guide roller 222 and the second guide roller 223 to allow the packaging film to pass through. The packaging film sequentially passes around the first guide roller 222, through the film-passing gap 2221, around the second guide roller 223, and then passes through one side of the film adsorption assembly 230. The packaging film is then tensioned by the first guide roller 222 and the second guide roller 223, thereby improving the conveying stability of the packaging film.

[0051] In some optional embodiments, the film tensioning assembly 220 further includes a position adjustment assembly 224. The mounting plate 221 is provided with an adjustment groove 2211 and an adjustment block 2212 that slides within the adjustment groove 2211. The first guide roller 222 is rotatably engaged with the adjustment block 2212, and the second guide roller 223 is rotatably engaged with the mounting plate 221. The position adjustment assembly 224 is drivenly connected to the adjustment block 2212. Driven by the position adjustment assembly 224, the adjustment block 2212 moves along the adjustment groove 2211, causing the first guide roller 222 to move closer to and further away from the second guide roller 223. The position adjustment assembly 224 can adjust the distance between the first guide roller 222 and the second guide roller 223 by moving the adjustment block 2212, thereby adjusting the tension of the packaging film.

[0052] The specific structure of the position adjustment component 224 can be selected according to actual needs. For example, the position adjustment component 224 can be a lead screw drive component, a rotary motor translation drive component 150, a belt translation drive component 150, a cylinder translation drive component 150, or a linear motor translation drive component 150.

[0053] In some optional embodiments, the film tensioning assembly 220 further includes a third guide roller 225 and a dust removal brush 226. The third guide roller 225 is rotatably mounted on the mounting plate 221 and located between the first guide roller 222 and the film release mechanism. The dust removal brush 226 is disposed on one side of the third guide roller 225 and extends along the axial direction of the third guide roller 225. A dust removal channel is formed between the third guide roller 225 and the dust removal brush 226. The packaging film passes through the dust removal channel and then wraps around the first guide roller 222. The dust removal brush 226 can remove dust from the packaging film that has passed through the dust removal channel, while the third guide roller 225 can also play a certain role in tensioning the packaging film.

[0054] In some alternative embodiments, the film release assembly 210 includes two rollers 211 and a mounting frame 141. The two rollers 211 are rotatably mounted on the mounting frame 141 and are arranged side by side in the horizontal direction. A roll of packaging film is placed on the two rollers 211 and between the two rollers 211. When the packaging film is released, the roll of packaging film rotates, and the rollers 211 also rotate. It should be noted that the conveying power of the packaging film can come from the frictional force of the idler roller 211 on the packaging film on the roll. In this case, the film release assembly 210 also includes a film drive motor, which is driven and connected to the idler roller 211, driving the idler roller 211 to rotate actively. Alternatively, the conveying power of the packaging film can come from the second guide roller 223. In this case, the film tensioning assembly 220 also includes a film drive motor, which is driven and connected to the second guide roller 223. The second guide roller 223 drives the packaging film to move through friction with the packaging film. In this case, the film release assembly 210 is passively released. As the packaging film is conveyed, the roll containing the packaging film rotates, and the frictional force between the packaging film on the roll and the idler roller 211 will drive the idler roller 211 to rotate, making the roll containing the packaging film rotate more smoothly and passively releasing the packaging film. In this embodiment, the film adsorption assembly 230, the film cutting assembly 240, and the film guide plate assembly 250 are all mounted on the mounting frame 141.

[0055] The specific structure of the cutting tool 241 can be selected according to actual needs. For example, in some optional embodiments, the cutting tool 241 includes two blades 2411 and two blade clamps 2412. The two blades 2411 are disposed between the two blade clamps 2412, and the two blade clamps 2412 clamp and lock the two blades 2411. The two blades 2411 extend from both sides of the blade clamps 2412 respectively. The tool translation component 242 is driven to connect with the blade clamps 2412. The blade clamps 2412 move back and forth between the film adsorption component 230 and the film guide component 250 under the drive of the tool translation component 242. The extension direction of the blade edge of the blade 2411 is inclined relative to the moving direction of the blade clamps 2412. When the blade clamps 2412 moves, they drive the blades 2411 to move. Since the blade edge of the blade 2411 is inclined relative to the moving direction of the blades 2411, it can cut the soft packaging film better. In this embodiment, the blade clamp 2412 passes through the clearance gap 254, and the blade 2411 is positioned above the film supply channel 253. The cutting edge of the blade 2411, which is in front of the moving direction of the blade 2411, forms an obtuse angle with the moving direction of the blade 2411. In another embodiment, the two blade clamps 2412 are detachably connected by several screws. In yet another embodiment, the blade clamp 2412 is provided with a positioning post, and the blade 2411 is provided with a positioning hole. The positioning post and the positioning hole are engaged to prevent the blade 2411 from shifting position. Please refer to [link to previous embodiment]. Figure 12 In another embodiment, a film-blocking block 2413 is provided at the end of the blade clamp 2412. The film-blocking block 2413 forms a limiting angle with the blade edge of the blade 2411. When cutting the packaging film, if the side of the packaging film bends and deflects, causing the blade edge of the blade 2411 to fail to break through the side of the packaging film, the side of the packaging film will move along the blade edge of the blade 2411 to the film-blocking block 2413 and then be restricted at the limiting angle. Since the side of the packaging film cannot continue to move at this time, it can be successfully broken through as the blade 2411 moves.

[0056] The structure of the welding mechanism 30 can be designed according to actual needs. For example, in this embodiment, the welding mechanism 30 includes a telescopic cylinder 31 and a hot welding strip 32. The telescopic cylinder 31 is mounted on the mounting frame 141. The output shaft of the telescopic cylinder 31 is driven to connect with the hot welding strip 32. Under the drive of the telescopic cylinder 31, the hot welding strip 32 can extend from the film inlet 1111 into the roll-up space 111, thereby enabling the hot welding strip 32 to perform hot welding on the packaging film. The hot welding strip 32 can also be driven by the telescopic cylinder 31 to detach from the film inlet 1111 into the roll-up space 111.

[0057] In this embodiment, the mounting frame 141 is also equipped with a liftable pressing and conveying assembly 40. The pressing and conveying assembly 40 is arranged on one side of the rolling and wrapping space 111 and is located above the rolling and wrapping conveying assembly 110. During the mattress rolling process, the pressing and conveying assembly 40 can descend until it presses the mattress onto the rolling and wrapping conveying assembly 110, thereby increasing the mattress conveying force. The pressing and conveying assembly 40 can be raised and lowered under the drive of the pressing drive assembly 41. The pressing drive assembly 41 is mounted on the mounting frame 141, and its structure can be designed according to actual needs. For example, the pressing drive assembly 41 can use multiple pressing cylinders, and the output shaft of the pressing cylinders is driven and connected to the pressing and conveying assembly 40. The pressing and conveying assembly 40 can be a mesh belt conveyor assembly, a roller conveyor assembly, a chain plate conveyor assembly, a belt conveyor assembly, etc., and is not limited to this example.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wrapping machine, characterized in that, include: Roll-up drive mechanism, film supply mechanism, and welding mechanism; The roll-up drive mechanism includes a roll-up conveying assembly, a first-side conveying assembly, a lifting drive assembly, an upper roll-up assembly, and a translation drive assembly; The first side conveying assembly is disposed at the conveying end of the roll conveying assembly, and the first side conveying assembly has an upwardly extending first side roll driving part formed on the side facing the roll conveying assembly; The lifting drive assembly is driven to connect to the first side conveying assembly and is used to drive the first side conveying assembly to lift. The upper roll-up assembly is disposed above the roll-up conveying assembly. The upper roll-up assembly includes a mounting frame, an upper conveying assembly, and a second side conveying assembly. The upper conveying assembly and the second side conveying assembly are on the mounting frame. An upper roll-up drive portion is formed at the bottom of the upper conveying assembly. A second side roll-up drive portion is formed on the side of the second side conveying assembly facing the first side conveying assembly. The first side roll-up drive portion, the second side roll-up drive portion, the top of the roll-up conveying assembly, and the upper roll-up drive portion together form a roll-up space. The roll-up space has a film inlet. The translation drive assembly is driven to connect with the mounting frame. Under the drive of the translation drive assembly, the mounting frame moves toward the first side conveyor assembly and the roll pack conveyor assembly and moves away from the first side conveyor assembly and the roll pack conveyor assembly. When the mounting frame moves toward the first side conveyor assembly and the upper roll pack assembly under the drive of the translation drive assembly, the upper roll pack drive part approaches the top of the roll pack conveyor assembly, and the second side roll pack drive part approaches the first side roll pack drive part. When the mounting frame moves away from the first side conveyor assembly and the upper roll pack assembly under the drive of the translation drive assembly, the upper roll pack drive part moves away from the top of the roll pack conveyor assembly, and the second side roll pack drive part moves away from the first side roll pack drive part. The film supply mechanism and the welding mechanism are mounted on the mounting frame. The film supply mechanism delivers the packaging film to the roll-up space through the film inlet, and the welding mechanism extends into the roll-up space from the film inlet.

2. A wrapper according to claim 1, characterised in that: The membrane supply mechanism includes a membrane release assembly, a membrane tensioning assembly, a membrane adsorption assembly, a membrane cutting assembly, and a membrane guide plate assembly; The membrane release assembly is used to temporarily store and release the packaging film. The membrane tensioning assembly, the membrane adsorption assembly, the membrane cutting assembly, and the membrane guide plate assembly are arranged sequentially in the film supply direction from the membrane release assembly to the membrane inlet. The membrane adsorption assembly has multiple vacuum adsorption holes on one side. The membrane cutting assembly includes a cutting tool and a tool translation assembly. The tool translation assembly is driven to the cutting tool, and the cutting tool moves back and forth between the membrane adsorption assembly and the membrane guide plate assembly under the drive of the tool translation assembly.

3. A wrapper according to claim 2, characterised in that: The membrane guide plate assembly includes a first guide plate and a second guide plate arranged opposite to each other. A membrane supply channel is formed between the first guide plate and the second guide plate. The membrane supply channel communicates with the membrane inlet. A clearance gap is formed between the side of the first guide plate away from the membrane inlet and the membrane adsorption assembly. The cutting tool passes through the clearance gap and extends to the end of the membrane supply channel away from the membrane inlet. The tool translation assembly is located on the side of the first guide plate away from the membrane supply channel.

4. A wrapper according to claim 3, characterised in that: The first guide plate has a guide portion on the side away from the film inlet, the guide portion is located within the clearance gap, and the guide portion gradually moves away from the film supply channel in the direction away from the film inlet.

5. A wrapper according to claim 2, characterised in that: The cutting tool includes two blades and two blade clamps. The two blades are disposed between the two blade clamps, which hold and lock the two blades. The two blades extend from both sides of the blade clamps. The tool translation assembly is driven to the blade clamps. The blade clamps move back and forth between the membrane adsorption assembly and the membrane guide plate assembly under the drive of the tool translation assembly. The blades are inclined relative to the moving direction of the blade clamps.

6. A wrapper according to any one of claims 1 to 5, characterised in that: The first side conveying assembly includes a lifting frame, a side belt power module, two drive rollers, a side conveyor belt, and several side pressure rollers. The lifting drive assembly is drivenly connected to the lifting frame. The side belt power module is mounted on the lifting frame and drivenly connected to the two drive rollers. The two drive rollers are mounted on the lifting frame from top to bottom. The side pressure rollers are positioned between the two drive rollers. The side conveyor belt is arranged around the drive rollers and the side pressure rollers. The first side winding drive unit is formed on the side of the side conveyor belt facing the winding conveying assembly.

7. A wrapper according to any one of claims 1 to 5, characterised in that, It also includes an inclined guide rail that extends inclinedly between the roll conveying assembly and the first side conveying assembly, the mounting frame being movably engaged with the inclined guide rail, and the mounting frame moving along the inclined guide rail under the drive of the translation drive assembly.

8. A wrapper according to any one of claims 1 to 5, characterised in that: The first side conveying assembly is provided with a discharge guide plate on the side away from the roll conveying assembly, and the discharge guide plate gradually extends downward at an angle away from the roll conveying assembly.

9. A wrapper according to claim 8, wherein, It also includes a material feeding and conveying assembly, which is disposed on the side of the first side conveying assembly away from the conveying assembly, and the material discharge guide plate is located between the first side conveying assembly and the material feeding and conveying assembly.

10. A wrapper according to claim 9, characterised in that: A baffle plate is provided on the side of the feeding and conveying assembly away from the first side conveying assembly.

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