Mattress wrapping device

Abstract

The invention discloses a mattress rolling and packing device, which belongs to the technical field of packing equipment, and comprises: a rack, which comprises an upper frame and a lower frame, and the upper frame and the lower frame jointly define a rolling and packing space; the synchronization assembly comprises a first rack, a first gear, a second rack, a second gear and a rotation drive, the first gear and the second gear are coaxially connected, the rotation drive is used for driving the first gear and the second gear to rotate synchronously, the first rack extends up and down, the second rack extends transversely, the first rack is connected with one of the upper frame and the lower frame, and the second rack is connected with the other of the upper frame and the lower frame. The second rack is connected with the other one of the upper frame and the lower frame, the first gear is in meshed connection with the first rack and used for driving the upper frame to ascend and descend relative to the lower frame, and the second gear is in meshed connection with the second rack and used for driving the upper frame to transversely slide relative to the lower frame, so that the size of the rolling space is adjusted, and the upper frame moves more smoothly; therefore, the rolling and wrapping operation of the mattress is conveniently realized.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and in particular to a mattress roll packaging device. Background Art

[0002] During mattress production, to facilitate transportation, mattresses must be compressed and rolled into long, cylindrical strips to reduce packaging and shipping volume. This process is typically accomplished using a rolling machine, which consists of a flexibly connected upper and lower frames that together form a rolling chamber, into which the mattress is transported for rolling. As the outer diameter of the mattress roll increases, the inner diameter of the chamber must also be increased to complete the rolling process.

[0003] In related technologies, some mattress wrapping machines use a horizontal motion assembly to drive the upper frame horizontally, while a vertical motion assembly drives the upper frame vertically to expand or contract the wrapping space. However, the synchronization between the horizontal and vertical motion assemblies is poor, resulting in noticeable jerks in the upper frame's movement, hindering mattress wrapping operations. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a mattress rolling device that facilitates smoother movement of the upper frame to facilitate the mattress rolling operation.

[0005] According to an embodiment of the present invention, the mattress rolling device includes: a frame, including an upper frame and a lower frame connected to each other, and the upper frame and the lower frame together form a rolling space; a synchronization component, including a first rack, a first gear, a second rack, a second gear and a rotation drive, the first gear and the second gear are coaxially connected, the rotation drive is used to drive the first gear and the second gear to rotate synchronously, the first rack is extended up and down, the second rack is extended laterally, the first rack is connected to one of the upper frame and the lower frame, the second rack is connected to the other of the upper frame and the lower frame, the first gear is meshed with the first rack to drive the upper frame to rise and fall relative to the lower frame, and the second gear is meshed with the second rack to drive the upper frame to slide laterally relative to the lower frame to adjust the size of the rolling space.

[0006] The mattress rolling device according to the embodiment of the present invention has at least the following beneficial effects: the first gear and the second gear are coaxially connected, and the first rack is extended up and down, the first rack is connected to one of the upper frame and the lower frame, the second rack is extended laterally, and the second rack is connected to the other of the upper frame and the lower frame. The first gear is engaged with the first rack, and the rotation drive drives the first gear to rotate, so that the upper frame can be raised and lowered relative to the lower frame. The rotation drive can drive the second gear to rotate synchronously with the first gear, and the second gear is engaged with the second rack. The mattress rolling device is connected to the lower frame so that the upper frame can slide laterally relative to the lower frame. The lateral sliding and lifting of the upper frame can be combined into an oblique movement to increase or decrease the rolling space to meet the operation requirements of mattress rolling. The mattress rolling device is coaxially connected by the first gear and the second gear, which is conducive to improving the synchronization of the lifting and lateral sliding of the upper frame, so that the movement of the upper frame is smoother, which is conducive to reducing the setbacks caused by the movement of the upper frame, so as to ensure that the inner diameter of the rolling space after the change can adapt to the outer diameter of the mattress rolling, so as to realize the mattress rolling operation and improve the success rate of mattress rolling.

[0007] According to some embodiments of the present invention, the lower frame includes a base frame, a first side frame and a second side frame, the first side frame and the second side frame are respectively connected to the two ends of the base frame to jointly define the accommodating space, the second rack is connected to the upper end of the first side frame or the second side frame, the first rack is connected to the upper frame, and the upper frame can enter and exit the accommodating space.

[0008] Specifically, the two ends of the base frame are respectively connected to the first side frame and the second side frame, the first side frame, the second side frame and the base frame together form a accommodating space, the second rack is connected to the upper end of the first side frame or the second side frame, the first rack is connected to the upper frame, and under the driving action of the first gear and the second gear, the upper frame can enter and exit the accommodating space, and the upper frame and the inner surface of the accommodating space together form a rolling space for mattress rolling operations.

[0009] According to some embodiments of the present invention, the mattress rolling device also includes a frame, the rotary drive, the first gear and the second gear are all connected to the frame, the frame is connected to the upper ends of the first side frame and the second side frame, and the first rack is suspended and connected to the frame.

[0010] The frame is connected above the first side frame and the second side frame, that is, the frame is connected to the upper end of the lower frame, and the lower frame can provide support for the frame, and the meshing connection between the second gear and the second rack, cooperate with the driving action of the rotation drive, so that the frame can slide laterally relative to the lower frame, and the first rack is suspended on the frame, and the first rack is connected to the upper frame, so that the upper frame slides laterally with the frame, and cooperates with the meshing connection between the first rack and the first gear, so that the upper frame can be lifted and lowered relative to the frame, that is, the upper frame can be lifted and lowered relative to the lower frame, so that the wrapping space can be increased or decreased. The connection between the frame and the first side frame and the second side frame is conducive to improving the stability of the frame sliding.

[0011] According to some embodiments of the present invention, the frame is provided with a first guide hole arranged in the longitudinal direction, and the first rack is passed through the first guide hole; and / or,

[0012] The frame body is provided with a second guide hole arranged in the transverse direction, and the second rack is passed through the second guide hole.

[0013] Optionally, the frame body is provided with a first guide hole arranged along the longitudinal direction, the first guide hole is adapted to the first rack, and the first rack is passed through the first guide hole, and the mutual abutment between the first guide hole and the first rack is conducive to limiting the lateral displacement of the first rack, ensuring the meshing connection between the first rack and the first gear, and cooperating with the driving action of the rotational drive to drive the upper frame to rise and fall relative to the lower frame; optionally, the frame body is provided with a second guide hole arranged along the transverse direction, the second guide hole is adapted to the second rack, and the second rack is passed through the second guide hole, and the mutual abutment between the second guide hole and the second rack is conducive to limiting the longitudinal displacement of the second rack, ensuring the meshing connection between the second rack and the second gear, and cooperating with the driving action of the rotational drive to drive the upper frame to slide laterally relative to the lower frame.

[0014] According to some embodiments of the present invention, the frame includes a first crossbeam, the two ends of which are respectively connected to the first side frame and the second side frame, the first gear, the first rack, the second gear and the second rack together constitute a transmission component, both ends of the first crossbeam are connected to the transmission component, the synchronization assembly also includes a transmission shaft, the two ends of the transmission shaft are respectively connected to the two transmission components, and the rotational drive is used to drive the transmission shaft to rotate.

[0015] Both ends of the first crossbeam are connected with transmission components, that is, there are two groups of transmission components, which are respectively connected to the two ends of the transmission shaft. The rotation drive is used to drive the transmission shaft to rotate, thereby driving the two groups of transmission components to operate synchronously. Through the setting of the two groups of transmission components, the lifting and lateral sliding of the upper frame relative to the lower frame are smoother, which is conducive to avoiding the problem of upper frame deflection.

[0016] According to some embodiments of the present invention, the frame further includes a second crossbeam and a third crossbeam, which are respectively connected to the first side frame and the second side frame, the second crossbeam and the third crossbeam are parallel to each other, and the ends of the second crossbeam and the third crossbeam away from the first crossbeam are connected to transmission components.

[0017] The second crossbeam and the third crossbeam are parallel to each other, and the ends of the second crossbeam and the third crossbeam away from the first crossbeam are connected to transmission parts, that is, the frame is provided with four transmission parts, two groups of transmission parts are located at the first crossbeam, and the other two groups of transmission parts are located at the ends of the second crossbeam and the third crossbeam away from the first crossbeam. By setting up multiple groups of transmission parts, the lifting and lateral sliding of the upper frame relative to the lower frame are smoother, which is conducive to avoiding the problem of upper frame deflection.

[0018] According to some embodiments of the present invention, the present invention also includes a counterweight block, a chain and a sprocket, the sprocket is rotatably connected to the lower frame, the sprocket is meshed with the chain, and the two ends of the chain are respectively connected to the counterweight block and the frame, for driving the upper frame away from the lower frame.

[0019] Taking into account that under the action of the upper frame's own weight, the upper frame has a tendency to approach each other relative to the lower frame, and the load of the rotary drive is large, the mattress rolling device also includes a counterweight block, a chain and a sprocket. The sprocket is rotatably connected to the lower frame, and the chain is meshed with the sprocket, and both ends of the chain are connected to the counterweight block and the frame. Under the action of the counterweight block's own weight, the connection of the chain is cooperated to drive the upper frame away from the lower frame, which is beneficial to reducing the driving load of the rotary drive. Under the driving action of the rotary drive, the movement of the upper frame is smoother, which is beneficial to reducing the setbacks caused by the movement of the upper frame, so as to ensure that the inner diameter of the rolling space after the change can be adapted to the outer diameter of the mattress roll, so as to realize the mattress rolling operation and improve the success rate of mattress rolling.

[0020] According to some embodiments of the present invention, the upper end of the rolling space is connected to an entrance, and the mattress rolling device also includes a cross bar and a clamping assembly. The cross bar is connected to the upper frame and is located above the entrance. Two clamping assemblies are provided, and the two clamping assemblies are respectively connected to the two ends of the cross bar; the clamping assembly includes a connecting block, a lifting component and a tensioning component, the lifting component is connected to the connecting block, the lifting component is used to drive the tensioning component to move closer to or away from the entrance, the tensioning component includes a tensioning drive, a first clamping jaw and a second clamping jaw, the tensioning drive is used to drive the first clamping jaw to open and close relative to the second clamping jaw, and the connecting block is movably connected to the cross bar to drive the two clamping assemblies closer to or away from each other.

[0021] Taking into account the poor applicability of current wrapping machines to packaging films of various sizes, packaging films with smaller sizes are easily affected by static electricity and viscosity, and are easily stuck to the roller shaft, making it difficult for them to fall into the wrapping space under their own weight, which can easily lead to mattress packaging failure; the two ends of the crossbar of the mattress wrapping device are respectively connected to two clamping assemblies, and the clamping assemblies include a connecting block, a lifting component and a tensioning and closing component. The connecting block is movably connected to the crossbar to drive the two clamping assemblies to move closer to or away from each other. According to the different sizes of packaging films, the user can adjust the distance between the two clamping assemblies to ensure that the clamping assemblies can clamp packaging films of different sizes. The tensioning and closing drive can drive the first clamping jaw to open relative to the second clamping jaw. The first clamping jaw and the second clamping jaw can jointly clamp the packaging film. The lifting component is connected to the connecting block, and the lifting component is transmission-connected with the stretching and closing component to drive the stretching and closing component to lift and lower, and cooperate with the stretching and closing component to clamp the packaging film, thereby applying tension to the packaging film, so that the packaging film passes through the insertion port and is transported to the wrapping space. Compared with the wrapping machine in which the packaging film falls into the wrapping space by its own weight, the clamping component can reduce the influence of static electricity and viscosity on the transportation of the packaging film by clamping and pulling the packaging film, so that the packaging film can be transported to the wrapping space with greater stability and reliability, to ensure that the packaging film can penetrate into the wrapping space and be wrapped together with the mattress, thereby improving the packaging efficiency of the mattress.

[0022] According to some embodiments of the present invention, the mattress rolling device further includes an unwinding assembly, which is used to unwind the packaging film between the two clamping assemblies.

[0023] The mattress rolling device also includes an unwinding component, which is used to unwind the packaging film between the two clamping components. By coordinating the positioning of the two clamping components on the cross bar and the clamping action of the tensioning and closing components, the packaging film can be clamped. Under the driving action of the lifting component, the packaging film can pass through the insertion port and enter the rolling space to realize the joint rolling of the packaging film and the mattress.

[0024] According to some embodiments of the present invention, the lower frame is connected to a lower conveying mechanism, the lower conveying mechanism has a first conveying surface, the mattress wrapping device further includes a flip bracket and a transition belt, the flip bracket is rotatably connected to an end of the lower frame away from the lower conveying mechanism, the flip bracket has a second conveying surface, one end of the transition belt is connected to the lower conveying mechanism, and the other end of the transition belt is connected to the flip bracket;

[0025] The mattress rolling device has a rolling state, in which the first conveying surface and the second conveying surface are both arranged at an angle to the transition belt.

[0026] The lower conveying mechanism is connected to the upper end of the lower frame and has a first conveying surface. Under the action of the lower conveying mechanism, the mattress is gradually inserted into the wrapping space to complete the mattress wrapping operation. The flip bracket is located at the end away from the lower conveying mechanism. The flip bracket can rotate relative to the lower frame to adjust the turning angle of the flip bracket relative to the lower conveying mechanism. The flip bracket has a second conveying surface. One end of the transition belt is connected to the lower conveying mechanism, and the other end of the transition belt is connected to the flip bracket. That is, the transition belt is located at the junction of the lower conveying mechanism and the flip bracket. The mattress wrapping device has a wrapping state. In the wrapping state, the second conveying surface is flipped relative to the first conveying surface and approaches it. The first and second conveying surfaces are arranged at an angle to the transition belt. The provision of the transition belt facilitates a gentler turning angle of the first conveying surface relative to the second conveying surface, thereby ensuring a smoother transition between the lower conveying mechanism and the corner bracket. The mattress can flip upward along the inclination of the transition belt and the inclination of the second conveying surface to facilitate mattress wrapping, improve the success rate of mattress wrapping, and help avoid the problem of mattress wrapping failure caused by folding in half.

[0027] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0029] Figure 1 This is a schematic structural diagram of a mattress rolling device according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic structural diagram of a mattress rolling device (with the upper frame omitted) according to an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of a portion of the structure of a synchronization component of a mattress roll-wrapping device according to an embodiment of the present invention;

[0032] Figure 4 This is a schematic structural diagram of the lower frame of a mattress wrapping device according to an embodiment of the present invention;

[0033] Figure 5 for Figure 1 A partial enlarged view of the mattress roll packaging device shown in FIG;

[0034] Figure 6 This is a schematic structural diagram of an upper frame of a mattress roll-wrapping device according to an embodiment of the present invention;

[0035] Figure 7 This is a schematic structural diagram of a clamping assembly of a mattress roll wrapping device according to an embodiment of the present invention.

[0036] Figure Number:

[0037] 110, upper frame; 111, entrance; 120, lower frame; 121, first side frame; 122, bottom frame; 123, second side frame;

[0038] 210, transmission component; 211, first gear; 212, first rack; 213, second gear; 214, second rack; 220, frame; 221, first guide hole; 222, second guide hole; 223, first beam; 224, second beam; 225, third beam; 230, rotation drive; 240, transmission shaft;

[0039] 310. Counterweight; 320. Sprocket; 330. Chain;

[0040] 400, crossbar; 410, sliding groove;

[0041] 500, clamping assembly; 510, connecting block; 520, lifting component; 531, housing; 532, first clamping jaw; 533, second clamping jaw; 534, third clamping jaw; 535, clip; 540, fastener;

[0042] 600. Unwinding component. DETAILED DESCRIPTION

[0043] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0044] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In the description of the present invention, "a plurality" refers to more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0046] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0047] Reference Figures 1 to 7 As shown, a mattress rolling device according to an embodiment of the present invention includes a frame and a synchronization component.

[0048] Among them, the frame includes an upper frame 110 and a lower frame 120 connected to each other. The lower end of the upper frame 110 and the lower frame 120 together form a rolling space and a conveying channel. The conveying channel is connected to the rolling space. The lower end of the upper frame 110 is connected to an upper conveying mechanism, and the end of the lower frame 120 facing the upper frame 110 is connected to a lower conveying mechanism. The upper conveying mechanism and the lower conveying mechanism together form a conveying channel. Under the conveying action of the upper conveying mechanism and the lower conveying mechanism, the mattress passes through the conveying channel and enters the rolling space, and changes along the shape of the inner surface of the rolling space, thereby realizing the rolling operation of the mattress.

[0049] Reference Figure 1 、 Figure 3 and Figure 6 As shown, the synchronization component includes a frame 220, a first rack 212, a second rack 214, a first gear 211, a second gear 213 and a rotation drive 230. The first gear 211 and the second gear 213 are coaxially fixedly connected. The first gear 211 and the second gear 213 are both rotatably connected to the frame 220. The rotation drive 230 can be a motor. The rotation drive 230 is connected to the frame 220 and is used to drive the first gear 211 and the second gear 213 to rotate synchronously.

[0050] The following description will take the example of conveying the mattress from back to front as an example. The two ends of the second rack 214 are extended forward and backward, and the two ends of the first rack 212 are extended up and down. The conveying channel is connected from back to front, so that the mattress is conveyed from back to front to the rolling space for rolling operation.

[0051] Reference Figure 1 、 Figure 3 and Figure 6 As shown, the first rack 212 is fixedly connected to the upper frame 110, the second rack 214 is fixedly connected to the lower frame 120, the frame body 220 is connected to the lower frame 120, and the second gear 213 is meshed with the second rack 214. Under the driving action of the rotation drive 230, the second gear 213 rolls relative to the second rack 214, thereby driving the frame body 220 to slide back and forth relative to the lower frame 120. Since the second gear 213 is coaxially connected to the first gear 211, the first gear 211 rolls relative to the first rack 212, thereby driving the upper frame 110 to rise and fall relative to the frame body 220.

[0052] Reference Figure 1 、 Figure 3 and Figure 6As shown, the lateral sliding and lifting of the upper frame 110 can be combined into diagonal movement to expand or contract the wrapping space, meeting the requirements of mattress wrapping operations. The upper frame 110 also features a downward pressure drive, which is in transmission connection with the upper conveyor mechanism and is used to drive the upper conveyor mechanism up and down. When the upper frame 110 moves upward, the downward pressure drive drives the upper conveyor mechanism downward, maintaining contact between the upper conveyor mechanism and the mattress. Under the conveying action of the upper conveyor mechanism, the mattress is transported into the wrapping space for wrapping. The downward pressure drive is a pneumatic cylinder.

[0053] Specifically, in the initial state, the upper frame 110 moves diagonally to its lowest point, with the upper frame 110 and lower frame 120 positioned close to each other, and the inner diameter of the wrapping space at its smallest. The upper and lower conveying mechanisms convey the mattress into the wrapping space for wrapping. As the outer diameter of the mattress wrap increases, the rotary drive 230 operates to move the upper frame 110 diagonally upward, moving the upper frame 110 and lower frame 120 away from each other. This gradually increases the inner diameter of the wrapping space, ensuring that the inner diameter of the wrapping space matches the outer diameter of the mattress wrap.

[0054] In conventional mattress wrapping machines, the vertical and horizontal movement of the upper frame 110 is difficult to synchronize, resulting in noticeable jerks during movement. This creates unstable contact between the upper conveyor mechanism and the mattress's upper surface, hindering stable mattress transport. This negatively impacts the mattress wrapping process and reduces mattress wrapping efficiency. Furthermore, conventional mattress wrapping machines require multiple drive sources to separately drive the vertical and horizontal movement of the upper frame 110, resulting in high manufacturing costs.

[0055] The mattress wrapping device provided by the embodiment of the present invention utilizes a coaxial connection between the first gear 211 and the second gear 213 to improve the synchronization of the lifting and lateral sliding of the upper frame 110, thereby ensuring smoother movement of the upper frame 110 and reducing jerks during movement. This improves the contact stability between the upper conveyor mechanism and the mattress, enabling stable mattress transport. Furthermore, the wrapping space changes more smoothly, ensuring that the inner diameter of the wrapping space after the change matches the outer diameter of the mattress wrap, enabling mattress wrapping operations and improving the success rate of mattress wrapping. The mattress wrapping device utilizes a single rotary drive 230 to drive the first gear 211 and the second gear 213 to rotate synchronously, thereby reducing manufacturing costs.

[0056] It should be understood that, as another embodiment, the first rack 212 is fixedly connected to the lower frame 120, the second rack 214 is fixedly connected to the upper frame 110, the frame body 220 is connected to the upper frame 110, and the first rack 212 is meshed with the first gear 211. Under the driving action of the rotation drive 230, the first gear 211 rolls relative to the first rack 212, thereby driving the frame body 220 to rise and fall relative to the lower frame 120. Since the second gear 213 is coaxially connected to the first gear 211, the second gear 213 and the second rack 214 roll, thereby driving the upper frame 110 to slide back and forth relative to the frame body 220.

[0057] Reference Figure 2 and Figure 4 As shown, it can be understood that in this embodiment, the lower frame 120 includes a base frame 122, a first side frame 121, and a second side frame 123 arranged at intervals on the left and right sides. The first side frame 121 and the second side frame 123 are respectively connected to the left and right ends of the base frame 122 to collectively define a storage space with an upward opening, allowing the upper frame 110 to move in and out of the storage space in the vertical direction. The storage space is arranged to pass through from front to back. Driven by the rotary drive 230, the upper frame 110 can move in and out of the storage space in the vertical direction, thereby increasing or decreasing the wrapping space. In conjunction with the conveying function of the upper and lower conveying mechanisms, the mattress wrapping operation is achieved.

[0058] Reference Figure 2 、 Figure 3 and Figure 4 As shown, the second rack 214 is connected to the upper end of the first side frame 121 or the second side frame 123, the second gear 213 is meshed with the second rack 214, the frame 220 is connected to the upper ends of the first side frame 121 and the second side frame 123, that is, the frame 220 is mounted above the first side frame 121 and the second side frame 123, the first rack 212 is connected to the upper frame 110, and the first rack 212 is suspended on the frame 220.

[0059] Reference Figure 2 、 Figure 3 and Figure 4As shown, the lower frame 120 can provide support for the frame body 220, and through the meshing connection between the second gear 213 and the second rack 214, cooperate with the driving action of the rotary drive 230, so that the frame body 220 can slide laterally relative to the lower frame 120, and the first rack 212 is suspended on the frame body 220, and the first rack 212 is connected to the upper frame 110, so that the upper frame 110 slides laterally with the frame body 220, and cooperates with the meshing connection between the first rack 212 and the first gear 211, so that the upper frame 110 can be lifted or lowered relative to the frame body 220, that is, the upper frame 110 can be lifted or lowered relative to the lower frame 120, so that the wrapping space can be increased or decreased, and the connection between the frame body 220 and the first side frame 121 and the second side frame 123 is conducive to improving the sliding stability of the frame body 220.

[0060] Reference Figure 3 and Figure 5 As shown, it can be understood that the frame 220 is provided with a first guide hole 221 arranged in the longitudinal direction, the first guide hole 221 is adapted to the first rack 212, and the first rack 212 is passed through the first guide hole 221. The inner surface of the first guide hole 221 and the first rack 212 abut against each other, which is conducive to limiting the movement of the first rack 212 in the horizontal plane, ensuring the meshing connection between the first rack 212 and the first gear 211, and cooperating with the driving action of the rotary drive 230 to drive the upper frame 110 to rise and fall relative to the lower frame 120.

[0061] Reference Figure 3 and Figure 5 As shown, specifically, a plurality of first guide holes 221 can be provided, and the first rack 212 is provided corresponding to the plurality of first guide holes 221 coaxially arranged up and down. The guiding effect of the plurality of first guide holes 221 is beneficial to enhance the guiding effect of the first rack 212, so that the first rack 212 can slide up and down, and ensure the meshing connection between the first rack 212 and the first gear 211.

[0062] Reference Figure 3 and Figure 5 As shown, the upper and lower ends of the first rack 212 are both provided with first limit blocks, the outer diameter of the first limit block is larger than the inner diameter of the first guide hole 221, and the first limit block can limit the upward and downward movement of the first rack 212, thereby avoiding the problem of the first rack 212 falling out of the frame 220 upward or downward.

[0063] Reference Figure 3 and Figure 5As shown, it can be understood that the frame 220 is provided with a second guide hole 222 arranged along the front and back, the second guide hole 222 is adapted to the second rack 214, and the second rack 214 is passed through the second guide hole 222. The inner surface of the second guide hole 222 and the second rack 214 abut against each other, which is conducive to limiting the movement of the second rack 214 in the longitudinal plane, ensuring the meshing connection between the second rack 214 and the second gear 213, and cooperating with the driving action of the rotary drive 230 to drive the upper frame 110 to slide back and forth relative to the lower frame 120.

[0064] Reference Figure 3 and Figure 5 As shown, specifically, a plurality of second guide holes 222 can be provided, and the second rack 214 is provided corresponding to the plurality of second guide holes 222 that are coaxially arranged front to back. The guiding effect of the plurality of second guide holes 222 is beneficial to enhance the guiding effect of the second rack 214, so that the second rack 214 can slide back and forth and ensure the meshing connection between the second rack 214 and the second gear 213.

[0065] Reference Figure 3 and Figure 5 As shown, the front and rear ends of the second rack 214 are provided with second limit blocks, and the outer diameter of the second limit blocks is larger than the inner diameter of the second guide hole 222. The second limit blocks can limit the forward and backward movement of the second rack 214, thereby avoiding the problem of the second rack 214 falling out of the frame 220 forward or backward.

[0066] Reference Figure 1 、 Figure 2 and Figure 3 As shown, it can be understood that the first gear 211, the first rack 212, the second gear 213, and the second rack 214 together constitute the transmission component 210. The frame 220 includes a first crossbeam 223, the left and right ends of which are respectively connected to the first side frame 121 and the second side frame 123. The transmission component 210 is connected to both ends of the first crossbeam 223.

[0067] Reference Figure 2 and Figure 3 As shown, the synchronization component also includes a transmission shaft 240, and the two ends of the transmission shaft 240 are respectively connected to the two transmission parts 210. The rotation drive 230 is used to drive the transmission shaft 240 to rotate, thereby driving the two sets of transmission parts 210 to operate synchronously. The setting of the two sets of transmission parts 210 is conducive to making the lifting and lateral sliding of the upper frame 110 relative to the lower frame 120 smoother, which is conducive to avoiding the problem of deflection of the upper frame 110.

[0068] Reference Figure 1 、 Figure 2 and Figure 3As shown, the mattress wrapping device, through the provision of two sets of left and right transmission components 210, helps limit the left-right deflection of the upper frame 110 and maintains smooth movement of the upper frame 110. The first gear 211 and the second gear 213 are both fixedly connected to the ends of the transmission shaft 240. The connection of the transmission shaft 240 enables the synchronous operation of the left and right transmission components 210, which facilitates smoother movement of the upper frame 110 relative to the lower frame 120.

[0069] Reference Figure 1 、 Figure 2 and Figure 4 As shown, it is understandable that the frame 220 further includes a second crossbeam 224 and a third crossbeam 225 , which are respectively connected to the first side frame 121 and the second side frame 123 , and the second crossbeam 224 and the third crossbeam 225 are parallel to each other.

[0070] Reference Figure 1 、 Figure 2 and Figure 4 As shown, the second crossbeam 224 and the third crossbeam 225 are both arranged to extend forward and backward. The rear ends of the second crossbeam 224 and the rear ends of the third crossbeam 225 are both fixedly connected to the first crossbeam 223. The front ends of the second crossbeam 224 and the front ends of the third crossbeam 225 are both connected to transmission components 210. In other words, the frame 220 is provided with four transmission components 210. Among them, two groups of transmission components 210 are located on the first crossbeam 223, and the other two groups of transmission components 210 are located at the ends of the second crossbeam 224 and the third crossbeam 225 away from the first crossbeam 223. The provision of multiple groups of transmission components 210 facilitates smoother lifting and lateral sliding of the upper frame 110 relative to the lower frame 120, which helps to avoid the problem of deflection of the upper frame 110.

[0071] Reference Figure 1 、 Figure 2 and Figure 4 As shown, the frame 220 also includes a fourth beam, which is arranged parallel to the first beam 223, and the two ends of the fourth beam are fixedly connected to the front end of the second beam 224 and the front end of the third beam 225, respectively, so that the frame 220 is enclosed in a square shape, which is beneficial to enhance the connection stability of the frame 220.

[0072] Reference Figure 2 and Figure 4 As shown, it is understandable that, considering that under the action of the upper frame 110's own weight, the upper frame 110 has a tendency to approach each other relative to the lower frame 120, when the rotary drive 230 needs to drive the upper frame 110 away from each other relative to the lower frame 120, the driving load of the rotary drive 230 is large, which puts higher requirements on the specifications of the rotary drive 230 and has lower economic benefits.

[0073] Reference Figure 2 and Figure 4 As shown, the mattress wrapping device further includes a counterweight assembly, which includes a counterweight 310, a chain 330, and a sprocket 320. The sprocket 320 is rotatably connected to the lower frame 120. The sprocket 320 is meshed with the chain 330. The ends of the chain 330 are respectively connected to the counterweight 310 and the frame 220, and are used to drive the upper frame 110 away from the lower frame 120.

[0074] Reference Figure 2 and Figure 4 As shown, under the action of its own weight, the chain 330 is used to drive the upper frame 110 away from the lower frame 120, which is beneficial to reducing the driving load of the rotary drive 230. Under the driving action of the rotary drive 230, the movement of the upper frame 110 is smoother, which is beneficial to reducing the setbacks caused by the movement of the upper frame 110, so as to ensure that the inner diameter of the rolling space after the change can be adapted to the outer diameter of the mattress rolling, so as to realize the rolling operation of the mattress and improve the success rate of the mattress rolling.

[0075] Reference Figure 2 and Figure 4 As shown, specifically, two groups of counterweight assemblies are provided, and the two groups of counterweight assemblies are respectively connected to the first side frame 121 and the second side frame 123 , which is beneficial to improve the stability of the upper frame 110 moving relative to the lower frame 120 to reduce the load of the rotary drive 230 .

[0076] Reference Figure 6 and Figure 7 As shown, it is understandable that, given the limited adaptability of current wrapping machines for various film sizes, smaller films are susceptible to static electricity and stickiness, easily clinging to the rollers and making it difficult for them to fall into the wrapping space under their own weight, which can easily lead to mattress packaging failure. The mattress wrapping device also includes a crossbar 400 and a clamping assembly 500. The crossbar 400 extends left and right at both ends, with the clamping assembly 500 connected to each end.

[0077] Reference Figure 6 and Figure 7As shown, the upper end of the wrapping space is connected to the insertion port 111, the cross bar 400 is connected to the upper frame 110 and is located above the insertion port 111, two clamping assemblies 500 are provided, and the two clamping assemblies 500 are respectively connected to the two ends of the cross bar 400; the clamping assembly 500 includes a connecting block 510, a lifting component 520 and a tensioning component, the lifting component 520 is connected to the connecting block 510, the lifting component 520 is used to drive the tensioning component to move closer to or away from the insertion port 111, the tensioning component includes a tensioning drive, a first clamping jaw 532 and a second clamping jaw 533, the tensioning drive is used to drive the first clamping jaw 532 to open and close relative to the second clamping jaw 533, the connecting block 510 is movably connected to the cross bar 400 to drive the two clamping assemblies 500 to move closer to or away from each other.

[0078] Reference Figure 6 and Figure 7 As shown, the clamping assembly 500 includes a connecting block 510, a lifting component 520 and an opening and closing component. The connecting block 510 is movably connected to the cross bar 400 to drive the two clamping assemblies 500 to move closer or farther away. According to the packaging films of different sizes, the user can adjust the distance between the two clamping assemblies 500 to ensure that the clamping assembly 500 can clamp packaging films of different sizes. The opening and closing drive can drive the first clamping jaw 532 to open and close relative to the second clamping jaw 533, that is, the first clamping jaw 532 and the second clamping jaw 533 can jointly clamp the packaging film. The lifting component 520 is connected to the connecting block 510, and The lifting component 520 is in transmission connection with the stretching and closing component to drive the stretching and closing component to lift and lower, and cooperate with the stretching and closing component to clamp the packaging film, thereby applying tension to the packaging film, so that the packaging film passes through the insertion port 111 and is transported to the wrapping space. Compared with the wrapping machine in which the packaging film falls into the wrapping space by its own weight, the clamping component 500 can clamp and pull the packaging film, which is conducive to reducing the impact of static electricity and viscosity on the transportation of the packaging film, so that the packaging film can be transported to the wrapping space in a more stable and reliable manner, ensuring that the packaging film can penetrate into the wrapping space and be wrapped together with the mattress, thereby improving the packaging efficiency of the mattress.

[0079] It should be noted that both the lifting component 520 and the opening and closing drive can be cylinders.

[0080] Reference Figure 7As shown, it can be understood that the upper end of the cross bar 400 is provided with a sliding groove 410 extending left and right, and the connecting block 510 is embedded in the sliding groove 410 and is slidably connected to the sliding groove 410. The clamping assembly 500 also includes a fastener 540, and the connecting block 510 is provided with a screw hole. After the user slides the connecting block 510 to the preset position of the cross bar 400, the fastener 540 can be screwed into the screw hole so that the fastener 540 abuts against the cross bar 400, thereby fixing the relative position of the connecting block 510 and the cross bar 400. The positional relationship is such that the spacing between the two clamping assemblies 500 is adapted to packaging films of different sizes. When it is necessary to adjust the position of the clamping assembly 500 on the cross bar 400, the user can loosen the fastener 540 to separate the fastener 540 from the cross bar 400, thereby eliminating the obstruction of the fastener 540 to the sliding of the connecting block 510. Through the sliding connection between the connecting block 510 and the sliding groove 410, the relative positional relationship of the two clamping assemblies 500 can be adjusted to adapt to packaging films of different sizes.

[0081] Reference Figure 7 As shown, the first clamping jaw 532 and the second clamping jaw 533 are connected to a clip 535 at one end away from the lifting component 520. As the first clamping jaw 532 opens and closes relative to the second clamping jaw 533, the two clips 535 can open and close with each other. The provision of the two clips 535 is conducive to increasing the contact area of ​​the opening and closing component with the packaging film, so as to achieve stable clamping and pulling of the packaging film, so as to achieve stable transportation of the packaging film, so that the packaging film can penetrate into the winding space, and realize the packaging of the packaging film and the mattress.

[0082] Reference Figure 7 As shown, both ends of the clip 535 are extended up and down, which is beneficial to enhance the guiding effect of the packaging film in the up and down directions. The clip 535 can pass through the insertion port 111 to ensure that the packaging film can pass through the insertion port 111 and enter the wrapping space.

[0083] Taking into account that the opening of the two clips 535 may easily cause collision with other components near the opposite entrance 111, the opening and closing component also includes a shell 531, a first clamping jaw 532 is rotatably connected to the shell 531, and a second clamping jaw 533 is fixedly connected to the shell 531, that is, the two clips 535 can be opened only by rotating the first clamping jaw 532 in a single direction relative to the shell 531, which is beneficial to reducing the opening angle of the two clips 535 and avoiding the problem of the clips 535 colliding with other components.

[0084] Reference Figure 7 As shown, it is understandable that the opening and closing component further includes a third clamping jaw 534, which is rotatably connected to the housing 531, and the opening and closing drive is used to drive the first clamping jaw 532 and the third clamping jaw 534 to move closer to or away from each other.

[0085] Reference Figure 7 As shown, the tensioning and closing component has a clamping state and an opening state. The clamping state is that the third clamping jaw 534 is closed with the first clamping jaw 532, and the two clips 535 are closed with each other. The opening state is that the third clamping jaw 534 is separated from the first clamping jaw 532, and the two clips 535 are separated from each other.

[0086] Reference Figure 7 As shown, specifically, the opening and closing component also includes a third clamping jaw 534, which is rotatably connected to the shell 531, and the opening and closing drive is used to drive the first clamping jaw 532 and the third clamping jaw 534 to move closer to or away from each other. In the opened state, the third clamping jaw 534 and the first clamping jaw 532 move away from each other, and the first clamping jaw 532 and the second clamping jaw 533 move away from each other, so that the two clips 535 are separated from each other, and the packaging film can be unwound between the first clamping jaw 532 and the second clamping jaw 533; in the clamping state, the opening and closing drive can drive the first clamping jaw 532 to move closer to the second clamping jaw 533, so that the two clips 535 are closed to each other, and at the same time, the third clamping jaw 534 and the first clamping jaw 532 move closer to and close to each other, and the clamping force of the two clips 535 and the clamping force of the first clamping jaw 532 and the third clamping jaw 534 are used to jointly achieve clamping of the packaging film, which is conducive to improving the clamping stability of the packaging film and realizing stable transportation of the packaging film.

[0087] Reference Figure 6 As shown, it can be understood that the mattress rolling device also includes a unwinding component 600, which is used to unwind the packaging film between the two clamping components 500. In conjunction with the positioning of the two clamping components 500 on the cross bar 400 and the clamping action of the tensioning and closing components, the clamping component 500 can clamp the packaging film. Under the driving action of the lifting component 520, the packaging film can pass through the insertion port 111 into the rolling space to realize the joint rolling of the packaging film and the mattress.

[0088] Reference Figure 6 As shown, the unwinding assembly 600 includes a plurality of winding rollers, the left end and the right end of at least one of the winding rollers are connected to the first side frame 121 and the second side frame 123 respectively, and the winding rollers are arranged below the cross bar 400 and parallel to the cross bar 400. After the packaging film is unwound, it can pass through the plurality of winding rollers so that the packaging film is transported to the clamping assembly 500 and unwound between the two clamping assemblies 500. The lifting component 520 and the opening and closing component cooperate to achieve the clamping and transportation of the packaging film.

[0089] It can be understood that the lower conveying mechanism has a first conveying surface, and the mattress rolling device also includes a flip bracket and a transition belt. The flip bracket is rotatably connected to one end of the lower frame 120 away from the lower conveying mechanism, and the flip bracket is located in front of the lower conveying mechanism. The flip bracket has a second conveying surface, one end of the transition belt is connected to the lower conveying mechanism, and the other end of the transition belt is connected to the flip bracket.

[0090] The mattress rolling device has a rolling state, in which the first conveying surface and the second conveying surface are both arranged at an angle to the transition belt.

[0091] Under the conveying action of the lower conveying mechanism, the mattress gradually passes into the rolling space to realize the rolling operation of the mattress. The flip bracket can rotate relative to the lower frame 120 to adjust the turning angle of the flip bracket relative to the lower conveying mechanism. The flip bracket has a second conveying surface, one end of the transition belt is connected to the lower conveying mechanism, and the other end of the transition belt is connected to the flip bracket, that is, the transition belt is arranged at the connection between the lower conveying mechanism and the flip bracket; the mattress rolling device has a rolling state, in which the second conveying surface is flipped close to the first conveying surface, and the first conveying surface and the second conveying surface are both arranged at an angle to the transition belt. The setting of the transition belt is conducive to making the turning angle of the first conveying surface relative to the second conveying surface more gentle, so that the transition of the mattress between the lower conveying mechanism and the corner bracket is smoother. The mattress can be flipped upward along the inclination of the transition belt and the inclination of the second conveying surface to facilitate the rolling of the mattress, improve the success rate of mattress rolling, and help avoid the problem of mattress folding and causing rolling failure.

[0092] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A mattress rolling device, characterized in that: include: The frame includes an upper frame (110) and a lower frame (120) connected to each other, wherein the upper frame (110) and the lower frame (120) together enclose a wrapping space; A synchronization component comprises a first rack (212), a first gear (211), a second rack (214), a second gear (213) and a rotation drive (230), wherein the first gear (211) and the second gear (213) are coaxially connected, and the rotation drive (230) is used to drive the first gear (211) and the second gear (213) to rotate synchronously, the first rack (212) is extended vertically, the second rack (214) is extended horizontally, and the first rack (212) is connected to the upper frame (110). ) and one of the lower frames (120), the second rack (214) is connected to the other of the upper frame (110) and the lower frame (120), the first gear (211) is meshedly connected with the first rack (212) to drive the upper frame (110) to rise and fall relative to the lower frame (120), the second gear (213) is meshedly connected with the second rack (214) to drive the upper frame (110) to slide laterally relative to the lower frame (120) to adjust the size of the wrapping space.

2. The mattress wrapping device according to claim 1, characterized in that: The lower frame (120) includes a base frame (122), a first side frame (121) and a second side frame (123); the first side frame (121) and the second side frame (123) are respectively connected to two ends of the base frame (122) to jointly define an accommodating space; the second rack (214) is connected to the upper end of the first side frame (121) or the second side frame (123); the first rack (212) is connected to the upper frame (110); and the upper frame (110) is capable of entering and exiting the accommodating space.

3. The mattress wrapping device according to claim 2, characterized in that: The invention also includes a frame (220), wherein the rotary drive (230), the first gear (211) and the second gear (213) are all connected to the frame (220), the frame (220) is connected to the upper ends of the first side frame (121) and the second side frame (123), and the first rack (212) is suspended and connected to the frame (220).

4. The mattress rolling device according to claim 3, characterized in that: The frame (220) is provided with a first guide hole (221) arranged in the longitudinal direction, and the first rack (212) is passed through the first guide hole (221); and / or, The frame (220) is provided with a second guide hole (222) arranged in a transverse direction, and the second rack (214) is passed through the second guide hole (222).

5. The mattress rolling device according to claim 3, characterized in that: The frame (220) includes a first crossbeam (223), the two ends of the first crossbeam (223) are respectively connected to the first side frame (121) and the second side frame (123), the first gear (211), the first rack (212), the second gear (213) and the second rack (214) together constitute a transmission component (210), the two ends of the first crossbeam (223) are both connected to the transmission component (210), the synchronization component also includes a transmission shaft (240), the two ends of the transmission shaft (240) are respectively connected to the two transmission components (210), and the rotation drive (230) is used to drive the transmission shaft (240) to rotate.

6. The mattress rolling device according to claim 5, characterized in that: The frame (220) further includes a second crossbeam (224) and a third crossbeam (225), wherein the second crossbeam (224) and the third crossbeam (225) are respectively connected to the first side frame (121) and the second side frame (123), the second crossbeam (224) and the third crossbeam (225) are parallel to each other, and the ends of the second crossbeam (224) and the third crossbeam (225) away from the first crossbeam (223) are both connected to the transmission component (210).

7. The mattress rolling device according to claim 3, characterized in that: The upper frame (110) further comprises a counterweight (310), a chain (330) and a sprocket (320), wherein the sprocket (320) is rotatably connected to the lower frame (120), the sprocket (320) is meshedly connected to the chain (330), and the two ends of the chain (330) are respectively connected to the counterweight (310) and the frame (220), and are used to drive the upper frame (110) to move away from the lower frame (120).

8. The mattress rolling device according to claim 1, characterized in that: The upper end of the rolling space is connected to an insertion port (111), and the mattress rolling device further comprises a cross bar (400) and a clamping assembly (500), wherein the cross bar (400) is connected to the upper frame (110) and is located above the insertion port (111), and two clamping assemblies (500) are provided, and the two clamping assemblies (500) are respectively connected to the two ends of the cross bar (400); the clamping assembly (500) comprises a connecting block (510), a lifting component (520) and an opening and closing component, and the lifting component (520) is connected to the upper frame (110) and is located above the insertion port (111). The component (520) is connected to the connecting block (510), and the lifting component (520) is used to drive the opening and closing component to move closer to or farther away from the insertion port (111). The opening and closing component includes an opening and closing drive, a first clamping jaw (532) and a second clamping jaw (533). The opening and closing drive is used to drive the first clamping jaw (532) to open and close relative to the second clamping jaw (533). The connecting block (510) is movably connected to the cross bar (400) to drive the two clamping assemblies (500) to move closer to or farther away.

9. The mattress rolling device according to claim 8, characterized in that: The mattress rolling device further comprises an unwinding assembly (600), and the unwinding assembly (600) is used to unwind the packaging film between the two clamping assemblies (500).

10. The mattress rolling device according to claim 1, characterized in that: The lower frame (120) is connected to a lower conveying mechanism, and the lower conveying mechanism has a first conveying surface. The mattress wrapping device further includes a flip bracket and a transition belt. The flip bracket is rotatably connected to the end of the lower frame (120) away from the lower conveying mechanism. The flip bracket has a second conveying surface. One end of the transition belt is connected to the lower conveying mechanism, and the other end of the transition belt is connected to the flip bracket. The mattress wrapping device has a wrapping state, and the wrapping state is that the first conveying surface and the second conveying surface are both arranged at an angle to the transition belt.

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