Mattress folding device

Abstract

The invention discloses a mattress folding device and belongs to the technical field of mattress packaging.The mattress folding device comprises a material supporting frame and a folding assembly, and the material supporting frame is provided with a conveying face used for supporting a mattress; the turnover assembly comprises a rotary driver, a turnover rod, a displacement driver and a pressing block, the rotary driver is in transmission connection with the turnover rod so as to drive the turnover rod to turn over relative to the material supporting frame, the displacement driver is connected to the turnover rod, and the displacement driver is in transmission connection with the pressing block; wherein the mattress folding device is configured to have a contraction state and a folding state, in the contraction state, the rotary driver drives the turnover rod to turn over downwards to the position below the conveying face, and the displacement driver drives the pressing block to be close to the turnover rod; in the folding state, the rotary driver drives the folding rod to be turned upwards, one side of the mattress is jacked up, the mattress is bent towards the other side to complete folding, the displacement driver drives the pressing block to be away from the folding rod, the pressing block applies pressure to the folding edge of the mattress, and the folding effect of the mattress is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mattress packaging, and particularly relates to a mattress folding device. BACKGROUND

[0002] The mattress folding device generally comprises a pressing mechanism and a folding mechanism. The pressing mechanism tightly presses the middle line of the mattress, and the folding mechanism bends one side of the mattress relative to the other side to achieve the folding of the mattress. In cooperation with a rolling machine, the folded mattress can be rolled and packaged into a column-shaped strip to reduce the packaging volume and transportation volume of the mattress.

[0003] In the related art, after the folding mechanism of the mattress folding device folds the mattress, the folding of the mattress is not tight, and the two sides of the folded mattress are prone to relative turning and forming a certain unfolding angle, that is, the folding effect of the mattress is poor, which easily affects the conveying and rolling of the mattress. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a mattress folding device, which is beneficial to improve the folding effect of the mattress.

[0005] The mattress folding device according to the embodiment of the present application comprises a material supporting frame having a conveying surface for supporting the mattress; and a folding assembly comprising a rotary driver, a folding rod, a displacement driver and a pressing block. The rotary driver is in transmission connection with the folding rod to drive the folding rod to turn relative to the material supporting frame. The displacement driver is connected to the folding rod and in transmission connection with the pressing block to drive the pressing block to move away from or close to the folding rod. The mattress folding device is configured to have a contraction state and a folding state. In the contraction state, the rotary driver drives the folding rod to turn downward below the conveying surface, and the displacement driver drives the pressing block to close to the folding rod. In the folding state, the rotary driver drives the folding rod to turn upward to lift one side of the mattress and bend it toward the other side to complete the folding. The displacement driver drives the pressing block to move away from the folding rod to apply pressure to the folded edge of the mattress.

[0006] The mattress folding device according to an embodiment of the present invention has at least the following beneficial effects: the support frame has a conveying surface for supporting the mattress, and the mattress can be conveyed under the conveying action of the conveying surface. The mattress folding device is configured to have a retracted state and a folded state. In the retracted state, the displacement driver drives the pressure block close to the folding rod to avoid the pressure block obstructing the rotation of the folding rod. The rotation driver drives the folding rod to flip forward to below the conveying surface, which helps to avoid the folding rod obstructing the conveying of the mattress. Under the conveying action of the conveying surface, the mattress can be conveyed to above the folding rod. In the folded state, the rotation driver is connected to the folding rod to drive the folding rod to flip in the reverse direction, so that at least part of the folding rod... Flipping over the conveyor surface, the folding rod abuts against the lower end of one side of the mattress, causing one side of the mattress to rise and bend towards the other side, thus achieving an initial fold. The displacement driver can flip over to the top of the folded edge of the mattress, driving the pressure block away from the folding rod, so that the pressure block applies pressure to the folded edge of the mattress, making the two sides of the mattress fit more tightly at the folded edge. This helps to reduce the angle at which the two sides of the mattress unfold after the pressure of the folding component on the mattress is removed, thereby reducing the space occupied by the mattress in the height direction, thus improving the folding effect of the mattress. This facilitates subsequent conveying and rolling operations of the mattress, and avoids problems such as conveying deviation or rolling failure caused by collisions between the mattress and the external conveying mechanism or the input port of the rolling machine.

[0007] According to some embodiments of the present invention, the folding rod includes a first sub-rod, a second sub-rod, and a third sub-rod. One end of the first sub-rod is connected to a rotary actuator, and the other end of the first sub-rod is connected to one end of the second sub-rod. The second sub-rod is arranged at an angle to the first sub-rod. A displacement actuator is connected to the second sub-rod. A pressure block is configured to move away from or closer to the second sub-rod. In the folded state, the second sub-rod is configured to flip over to the top of the folded edge. The other end of the second sub-rod is connected to the third sub-rod, and the third sub-rod is arranged at an angle to the second sub-rod. The third sub-rod extends in a direction away from the rotary actuator.

[0008] Specifically, the folding rod includes a first sub-rod, a second sub-rod, and a third sub-rod. One end of the first sub-rod is connected to a rotary actuator, and the other end of the first sub-rod is connected to one end of the second sub-rod. The second sub-rod and the first sub-rod are arranged at an angle, and the other end of the second sub-rod is connected to the third sub-rod. The third sub-rod extends away from the rotary actuator, meaning the second sub-rod is located between the first and third sub-rods. In the folded state, the rotary actuator drives the first sub-rod to rotate, which in turn drives the second and third sub-rods to rotate synchronously. At this time, the third sub-rod, located at the end away from the rotary actuator, first comes into contact with the mattress, so that... When the mattress is folded, and one side of the mattress is initially folded relative to the other side, the angle formed by the first and second sub-rods corresponds to the folded edge of the mattress, which helps control the folded position of the mattress. The second sub-rod is configured to flip over to the top of the folded edge of the mattress. A displacement actuator is connected to the second sub-rod, and a pressure block is configured to move closer to or further away from the second sub-rod. When the displacement actuator drives the pressure block away from the second sub-rod, the pressure block can apply pressure to the folded edge of the mattress, so that the two sides of the mattress are more tightly pressed together at the folded edge. This helps to suppress the angle at which the sides of the mattress flip and unfold after the pressure of the flipping assembly is removed.

[0009] According to some embodiments of the present invention, the displacement actuator includes a fixed end and a movable end that are capable of relative extension and retraction, the fixed end being connected to a second sub-rod, and the movable end being connected to a pressure block, the pressure block being configured to reciprocate along the length direction of the first sub-rod.

[0010] The displacement actuator includes a fixed end and a movable end that can extend and retract relative to each other. The fixed end is connected to the second sub-rod, and the movable end is connected to the pressure block. Under the driving action of the displacement actuator, the movable end and the fixed end can extend and retract relative to each other. Under the driving action of the displacement actuator, the pressure block is configured to reciprocate along the length direction of the first sub-rod. In the folded state, the angle formed by the first sub-rod and the second sub-rod corresponds to the folded edge of the mattress, which is beneficial to controlling the folded position of the mattress. The displacement actuator drives the pressure block away from the second sub-rod, and the pressure block can apply pressure to the folded edge of the mattress so that the two sides of the mattress are more tightly attached at the folded edge, which is beneficial to suppressing the angle at which the two sides of the mattress flip and unfold after the pressure of the flipping component is removed.

[0011] According to some embodiments of the present invention, the folding assembly further includes a guide post and a guide sleeve. The guide sleeve is connected to the folding rod and has a guide hole. One end of the guide post is connected to the pressure block, and the other end of the guide post passes through the guide hole and is slidably connected to the guide sleeve.

[0012] To increase the stability of the pressure block displacement, the flipping assembly of the mattress folding device also includes a guide post and a guide sleeve. The guide sleeve is connected to the folding rod and has a guide hole. One end of the guide post is connected to the pressure block so that the guide post moves synchronously with the pressure block. The other end of the guide post passes through the guide hole of the guide sleeve and slides to connect with the guide sleeve. Through the sliding connection between the guide post and the guide sleeve, the displacement of the pressure block can be guided, making the displacement of the pressure block more stable. This ensures that the pressure block can apply pressure to the folded edge of the mattress according to the preset position and stroke, thereby improving the folding effect of the mattress and suppressing the angle at which the sides of the mattress flip and unfold after the pressure of the flipping assembly is released.

[0013] According to some embodiments of the present invention, the second sub-rod is provided with a through hole, the displacement actuator passes through the through hole and is connected to the pressure block, and the guide post passes through the through hole and is connected to the guide sleeve.

[0014] Specifically, the second sub-rod has a through hole, through which the displacement actuator passes and is connected to the pressure block. That is, the displacement actuator and the pressure block are located on both sides of the through hole. In the retracted state, the pressure block can be closer to the second sub-rod, which helps to avoid the problem of the pressure block hindering the rotation of the folding rod. The guide post passes through the through hole and is connected to the guide sleeve. While ensuring the sliding connection between the guide post and the guide sleeve, it can eliminate the restriction on the movement of the guide post caused by the second sub-rod.

[0015] According to some embodiments of the present invention, a receiving groove is provided on the wall surface of the first sub-rod adjacent to the second sub-rod, and the pressing block portion is disposed in the receiving groove.

[0016] A receiving groove is provided on the wall surface of the first sub-rod adjacent to the second sub-rod, and the pressure block is located in the receiving groove. The receiving groove can increase the setting length of the pressure block. The receiving groove can be used by the displacement actuator to drive the pressure block to reciprocate, which helps to increase the contact area between the pressure block and the mattress. In the folded state, it ensures that the pressure block can apply pressure to the folded edge of the mattress, which helps to improve the folding effect of the mattress.

[0017] According to some embodiments of the present invention, the angle between the second sub-rod and the first sub-rod is less than 90°, and the angle between the third sub-rod and the second sub-rod is greater than or equal to 90°; and / or,

[0018] A roller is rotatably connected at the junction of the third sub-rod and the second sub-rod.

[0019] Optionally, the angle between the second sub-rod and the first sub-rod is less than 90°, while the angle between the third sub-rod and the second sub-rod is greater than 90°. In the folded state, the rotary actuator drives the first sub-rod to rotate, which in turn drives the second and third sub-rods to rotate synchronously. At this time, the third sub-rod, located at the end furthest from the rotary actuator, first comes into contact with the mattress and drives the mattress to bend and fold in half. When one side of the mattress is initially folded relative to the other side, the angle formed by the first and second sub-rods corresponds to the folded edge of the mattress, thereby controlling the folded position of the mattress. The second sub-rod can be flipped to above the folded edge of the mattress. The displacement actuator is connected to the second sub-rod, and the pressure block can move closer to or away from the second sub-rod. When the displacement actuator drives the pressure block away from the second sub-rod, the pressure block can apply pressure to the folded edge of the mattress. Applying pressure, with the angle between the second and first sub-rods less than 90°, allows the pressure block to apply pressure to the folded edge of the mattress from the open side towards the folded edge. This improves the folding effect, making the two sides of the mattress fit more tightly at the folded edge, and helps to suppress the angle at which the sides of the mattress flip and unfold after the pressure of the flipping component is released. Optionally, a roller is rotatably connected to the connection between the third and second sub-rods. When the mattress folding device is in the folded state, driven by the rotary driver, as the third sub-rod flips, it first comes into contact with the mattress and then separates from it. The roller can roll and connect with the mattress to drive the mattress to bend further to complete the fold, and also helps to reduce the lateral displacement of the mattress caused by the flipping component.

[0020] According to some embodiments of the present invention, the folding assembly further includes a connecting shaft, a folding rod, a pressure block and a displacement driver together forming a folding member. Multiple folding members are provided, and the multiple folding members are arranged at intervals along the length direction of the connecting shaft and are all connected to the connecting shaft. The rotary driver is drivenly connected to the connecting shaft.

[0021] Specifically, the folding rod, pressure block, and displacement actuator together form the folding component. Multiple folding components are arranged at intervals along the length of the connecting shaft and are all connected to the connecting shaft. The rotation actuator is connected to the connecting shaft to drive the connecting shaft to rotate forward or backward, thereby driving the multiple folding components to rotate synchronously. The folding component folds multiple parts of the mattress simultaneously, which helps to improve the success rate of mattress folding. Furthermore, the pressure applied to the mattress body and the folded edges by multiple folding components helps to improve the folding effect of the mattress. It also helps to reduce the angle at which the mattress flips and unfolds after the pressure of the folding component on the mattress is removed, thereby reducing the space occupied by the mattress in the height direction, which improves the folding effect of the mattress. This facilitates the subsequent conveying and rolling operations of the mattress and avoids the problem of conveying deviation or rolling failure caused by the mattress colliding with the external conveying mechanism or the input port of the rolling machine.

[0022] According to some embodiments of the present invention, the present invention further includes a pressure plate, a transfer mechanism, and at least two connecting components. The connecting components include a connecting seat and a fastener. One end of the connecting seat is provided with a first connecting hole. The pressure plate is located above the conveying surface and parallel to the conveying surface. The pressure plate is connected to at least two connecting components. The pressure plate is provided with at least two second connecting holes, which are opposite to the first connecting holes. At least one of the second connecting holes and the first connecting hole is a transverse strip hole. The fastener passes through the first connecting hole and the second connecting hole and fixes the connecting seat and the pressure plate. The transfer mechanism is connected to the other end of the connecting seat to drive the pressure plate closer to or away from the conveying surface.

[0023] Specifically, the mattress folding device includes at least two connecting components. A pressure plate is connected to at least two connecting components. Specifically, the pressure plate has at least two second connecting holes, and one end of the connecting seat has a first connecting hole. The first and second connecting holes are opposite to each other, and at least one of the first and second connecting holes is a horizontally arranged strip hole. Fasteners pass through the first and second connecting holes to fix the connecting seat and the pressure plate. By adjusting the position of the fasteners within the strip hole, hole position deviations caused by assembly or processing errors can be compensated. The transfer mechanism is connected to the other end of the connecting seat; that is, transfer is achieved through the connecting action of the connecting components. The connection between the mechanism and the pressure plate helps to avoid assembly failure caused by the pressure plate getting stuck. The material rack has a conveying surface for conveying mattresses. The pressure plate is located above the conveying surface and is set parallel to the conveying surface. Under the driving action of the transfer mechanism, the pressure plate is driven to move closer to or away from the conveying surface. When the pressure plate moves closer to the conveying surface, it can abut against the mattress on the conveying surface to achieve tight pressure on the mattress. With the folding component, the mattress can be folded in half to reduce the packaging volume of the mattress. The mattress folding device, through the flexible connection between the connecting component and the pressure plate, helps to reduce the assembly difficulty of the pressure plate, so as to facilitate the assembly of the pressure plate and the transfer mechanism.

[0024] According to some embodiments of the present invention, the pressure plate is provided with second connecting holes at both ends along its length, and the length direction of the strip-shaped hole is consistent with the length direction of the pressure plate; and / or,

[0025] The pressure plate includes a plate body and connecting blocks. The two ends of the plate body are respectively connected to the connecting blocks. The connecting blocks are provided with second connecting holes. The fasteners include connecting posts and limiting rings. The connecting posts pass through the first connecting holes and the second connecting holes and are fixedly connected to the limiting rings.

[0026] Optionally, the pressure plate has second connecting holes at both ends along its length. The length direction of the slotted holes is consistent with the length direction of the pressure plate, meaning the length direction of the slotted holes matches the length direction of the pressure plate. At least one of the first and second connecting holes is a slotted hole to ensure that the first connecting hole can be opposite and communicate with the second connecting hole. After the fastener passes through the first and second connecting holes, it can fix the connecting seat and the pressure plate. That is, through the connecting action of the connecting components, the connection between the transfer mechanism and the pressure plate is realized, which helps to avoid the pressure plate being damaged due to machining errors in the length direction. This can lead to jamming and assembly failure. Optionally, the pressure plate includes a plate body and connecting blocks. Connecting blocks are connected to both ends of the plate body. A second connecting hole is provided on the connecting block. The connection between the connecting block and the plate body helps to reduce the inconvenience of machining holes on the plate body, so as to facilitate the connection of different specifications or types of plates and connecting components. The fastener includes a connecting post and a limiting ring. The connecting post passes through the first connecting hole and the second connecting hole and is fixedly connected to the limiting ring. Under the joint clamping action of the connecting post and the limiting ring, the pressure plate and the connecting seat are fixedly connected.

[0027] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

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

[0029] Figure 1 This is a schematic diagram of the mattress folding device in the folded state according to an embodiment of the present invention;

[0030] Figure 2 for Figure 1 The image shows a longitudinal sectional view of the mattress folding device in its folded state.

[0031] Figure 3 This is a schematic diagram of the folding assembly of a mattress folding device according to an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the folding component of a mattress folding device according to an embodiment of the present invention;

[0033] Figure 5 for Figure 3 The image shows a longitudinal sectional view of the folding assembly of the mattress folding device;

[0034] Figure 6 This is a schematic diagram of the connection between the displacement driver and the pressure block of a mattress folding device according to an embodiment of the present invention;

[0035] Figure 7This is a schematic diagram of the connection assembly of the mattress folding device according to an embodiment of the present invention, connecting it to the pressure plate and the connecting mechanism.

[0036] Figure 8 for Figure 7 A partial enlarged view of point A showing the connection assembly of the mattress folding device with the pressure plate and connecting mechanism.

[0037] Figure 9 This is an exploded view showing the connection assembly of a mattress folding device according to an embodiment of the present invention separated from the pressure plate;

[0038] Figure 10 for Figure 9 The image shows a partial enlarged view at point B where the connecting assembly of the mattress folding device is separated from the pressure plate;

[0039] Figure 11 This is a schematic diagram of a mattress folded using a mattress folding device according to an embodiment of the present invention.

[0040] Icon labels:

[0041] 100. Material support frame; 110. Conveying surface;

[0042] 200, Folding assembly; 210, Folding rod; 211, First sub-rod; 2111, Receiving groove; 212, Second sub-rod; 2121, Perforation; 213, Third sub-rod; 220, Rotary actuator; 230, Displacement actuator; 231, Fixed end; 232, Movable end; 240, Pressure block; 251, Guide post; 252, Guide sleeve; 260, Connecting shaft; 270, Roller;

[0043] 300. Connecting component; 310. Connecting seat; 311. Cavity; 312. Notch; 313. First connecting hole; 320. Fastener;

[0044] 400, Connecting block; 410, First sub-block; 420, Second sub-block; 430, Second connecting hole;

[0045] 500, rollers;

[0046] 600. Transfer mechanism; 610. Lifting component; 620. Lateral movement component; 621. Pulley; 622. Belt; 623. Guide rail; 624. Drive shaft; 625. Drive motor;

[0047] 700, pressure plate;

[0048] 800, folded edge. Detailed Implementation

[0049] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0050] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0051] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or the order in which the indicated technical features are presented.

[0052] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0053] Reference Figures 1 to 11 As shown, a mattress folding device according to an embodiment of the present invention includes: a support frame 100 and a folding assembly 200. This mattress folding device is used to fold mattresses with good flexibility and durability, such as cotton mattresses and latex mattresses.

[0054] Reference Figure 1 , Figure 2 and Figure 3 As shown, the support frame 100 has a conveying surface 110 for supporting the mattress. The folding assembly 200 includes a rotary driver 220, a folding rod 210, a displacement driver 230, and a pressure block 240. The rotary driver 220 is located below the conveying surface 110 and is drivenly connected to the folding rod 210 to drive the folding rod 210 to fold relative to the support frame 100. The displacement driver 230 is connected to the folding rod 210 and is drivenly connected to the pressure block 240 to drive the pressure block 240 away from or towards the folding rod 210.

[0055] Reference Figure 1 , Figure 2 and Figure 3As shown, the mattress folding device is configured to have a retracted state and a folded state. In the retracted state, the rotary driver 220 drives the folding rod 210 to flip downwards to below the conveyor surface 110, and the displacement driver 230 drives the pressure block 240 to approach the folding rod 210. In the folded state, the rotary driver 220 drives the folding rod 210 to flip upwards, lifting one side of the mattress and bending it towards the other side to complete the fold. The displacement driver 230 drives the pressure block 240 away from the folding rod 210, so that the pressure block 240 applies pressure to the folded edge 800 of the mattress.

[0056] In the retracted state, the displacement driver 230 drives the pressure block 240 to approach the folding rod 210 to avoid the pressure block 240 obstructing the rotation of the folding rod 210 and the conveying of the mattress. The rotation driver 220 drives the folding rod 210 to flip forward to the underside of the conveying surface 110, thereby avoiding the folding rod 210 obstructing the conveying of the mattress. Under the conveying action of the conveying surface 110, the mattress can be conveyed to the top of the folding rod 210.

[0057] Reference Figure 1 , Figure 2 and Figure 3 As shown, in the folded state, the rotary driver 220 is connected to the folding rod 210 to drive the folding rod 210 to flip in the opposite direction, so that the folding rod 210 is at least partially flipped above the conveying surface 110. The folding rod 210 abuts against the lower end of one side of the mattress, so that one side of the mattress is lifted and bent towards the other side to achieve the initial folding of the mattress. The displacement driver 230 can be flipped above the folded edge 800 of the mattress. The displacement driver 230 drives the pressure block 240 away from the folding rod 210, so that the pressure block 240 applies pressure to the folded edge 800 of the mattress, thereby making the two sides of the mattress fit more tightly at the folded edge 800. This helps to reduce the angle at which the two sides of the mattress flip and unfold after the pressure of the folding component 200 on the mattress is removed, thereby reducing the space occupied by the mattress in the height direction, that is, improving the folding effect of the mattress. This facilitates the subsequent conveying and rolling of the mattress, and avoids the problem of conveying deviation or rolling failure caused by the mattress colliding with the external conveying mechanism or the input port of the rolling machine.

[0058] It should be noted that the rotary drive 220 can be a forward and reverse motor. After one side of the mattress is folded over the other side, the folded mattress has an open side and a closed side. The closed side forms a crease, and the closed side of the mattress is the folded edge 800 mentioned above.

[0059] Reference Figure 1 , Figure 4 and Figure 5As shown, it can be understood that, specifically, the folding lever 210 includes a first sub-lever 211, a second sub-lever 212, and a third sub-lever 213. One end of the first sub-lever 211 is connected to the rotary actuator 220, and the other end of the first sub-lever 211 is connected to one end of the second sub-lever 212. The second sub-lever 212 is arranged at an angle to the first sub-lever 211. The other end of the second sub-lever 212 is connected to the third sub-lever 213, and the third sub-lever 213 is arranged at an angle to the second sub-lever 212. The third sub-lever 213 extends in a direction away from the rotary actuator 220. That is, the second sub-lever 212 is located between the first sub-lever 211 and the third sub-lever 213.

[0060] Reference Figure 1 , Figure 4 and Figure 5 As shown, the displacement actuator 230 is connected to the second sub-rod 212. Under the driving action of the displacement actuator 230, the pressure block 240 is configured to move away from or closer to the second sub-rod 212. In the folded state, under the driving action of the rotation actuator 220, the second sub-rod 212 is configured to flip over to the top of the folded edge 800 of the mattress.

[0061] Reference Figure 1 , Figure 4 and Figure 5 As shown, in the folded state, the rotary actuator 220 drives the first sub-rod 211 to rotate, which in turn drives the second sub-rod 212 and the third sub-rod 213 to rotate synchronously. At this time, the third sub-rod 213, located at the end away from the rotary actuator 220, first comes into contact with the mattress and drives the mattress to bend and fold in half. When one side of the mattress is initially folded relative to the other side, the angle formed by the first sub-rod 211 and the second sub-rod 212 corresponds to the folded edge 80° of the mattress, thereby controlling the folding position of the mattress so as to keep the folding position of the mattress within the correct range. At the center line, the second sub-rod 212 is configured to flip over to the top of the folded edge 800 of the mattress. The displacement actuator 230 is connected to the second sub-rod 212. The pressure block 240 can move closer to or further away from the second sub-rod 212. When the displacement actuator 230 drives the pressure block 240 away from the second sub-rod 212, the pressure block 240 can apply pressure to the folded edge 800 of the mattress so that the two sides of the mattress are more closely attached at the folded edge 800. This helps to suppress the angle at which the sides of the mattress flip and unfold after the pressure of the flipping assembly is removed.

[0062] Reference Figure 1 , Figure 4 and Figure 5As shown, under the driving action of the rotary actuator 220, the third sub-rod 213 first abuts against the lower end of the mattress. As the mattress gradually bends, the contact area between the third sub-rod 213 and the mattress gradually decreases, and the second sub-rod 212 gradually abuts against the mattress. The angle arrangement between the second sub-rod 212 and the first sub-rod 211, through the limiting effect of the second sub-rod 212 and the first sub-rod 211 on the mattress, helps to control the position of the folded edge 800 formed after the mattress is bent, so that the folded edge 800 of the mattress overlaps with the center line of the mattress, so as to realize the folding of one side of the mattress relative to the other side.

[0063] Reference Figure 1 , Figure 5 and Figure 6 As shown, it can be understood that the displacement actuator 230 includes a fixed end 231 and a movable end 232 that are capable of relative extension and retraction. The fixed end 231 is connected to the second sub-rod 212, and the movable end 232 is connected to the pressure block 240, which is configured to reciprocate along the length direction of the first sub-rod 211.

[0064] Reference Figure 1 , Figure 5 and Figure 6 As shown, specifically, the displacement actuator 230 can be a cylinder, which is connected to the second sub-rod 212, and the movable end 232 of the cylinder is connected to the pressure block 240. Under the driving action of the displacement actuator 230, the pressure block 240 is configured to drive the pressure block 240 to reciprocate along the length direction of the first sub-rod 211. In the folded state, the angle formed by the first sub-rod 211 and the second sub-rod 212 corresponds to the folded edge 800 of the mattress, thereby controlling the formation position of the folded edge 800 of the mattress. The displacement actuator 230 drives the pressure block 240 away from the second sub-rod 212. The pressure block 240 can apply pressure to the folded edge 800 of the mattress so that the two sides of the mattress are more closely attached at the folded edge 800, which is beneficial to suppressing the angle of the mattress flipping and unfolding after the pressure of the flipping component is eliminated.

[0065] Reference Figure 1 , Figure 5 and Figure 6 As shown, it can be understood that in order to enhance the stability of the displacement of the pressure block 240, the folding assembly 200 also includes a guide post 251 and a guide sleeve 252. The guide sleeve 252 is connected to the folding rod 210 and has a guide hole. One end of the guide post 251 is connected to the pressure block 240, and the other end of the guide post 251 passes through the guide hole and slides to connect with the guide sleeve 252.

[0066] Reference Figure 1 , Figure 5 and Figure 6As shown, the guide post 251 is connected to the surface of the pressure block 240 near the second sub-rod 212, while the guide sleeve 252 is fixedly connected to the second sub-rod 212. One end of the guide post 251 is fixedly connected to the pressure block 240, and the other end of the guide post 251 passes through the guide hole and is slidably connected to the guide sleeve 252. The sliding connection between the guide post 251 and the guide sleeve 252 helps to guide the displacement of the pressure block 240, making the displacement of the pressure block 240 more stable. This ensures that the pressure block 240 can apply pressure to the folded edge 800 of the mattress according to the preset position and stroke, thereby improving the folding effect of the mattress and suppressing the angle at which the sides of the mattress flip and unfold after the pressure of the folding assembly 200 is eliminated.

[0067] It should be noted that the mattress folding device controls the stroke of the pressure block 240 by controlling the stroke of the cylinder, which helps to prevent the guide post 251 from coming out of the guide hole.

[0068] Reference Figure 1 , Figure 4 and Figure 5 As shown, it can be understood that the second sub-rod 212 is provided with a through hole 2121, the displacement actuator 230 passes through the through hole 2121 and is connected to the pressure block 240, and the guide post 251 passes through the through hole 2121 and is connected to the guide sleeve 252.

[0069] Reference Figure 1 , Figure 4 and Figure 5 As shown, specifically, in the folded state, the second sub-rod 212 has a first plane facing the mattress and a second plane facing away from the first plane. The fixed end 231 of the displacement actuator 230 is connected to the second plane, and the movable end 232 passes through the perforation 2121 and is connected to the pressure block 240. That is, the displacement actuator 230 and the pressure block 240 are located on both sides of the perforation 2121. In the retracted state, the pressure block 240 can be made closer to the second sub-rod 212, which helps to avoid the problem of the pressure block 240 hindering the rotation of the folding rod 210. The guide post 251 passes through the perforation 2121 and is connected to the guide sleeve 252. While ensuring the sliding connection between the guide post 251 and the guide sleeve 252, the restriction on the reciprocating movement of the guide post 251 caused by the second sub-rod 212 can be eliminated.

[0070] Reference Figure 1 , Figure 4 and Figure 5As shown, specifically, each pressure block 240 is provided with two sets of guide posts 251 and guide sleeves 252. One set of guide posts 251 and guide sleeves 252 is connected to the end of the pressure block 240 near the first sub-rod 211, and the other set of guide posts 251 and guide sleeves 252 is connected to the end near the third sub-rod 213. The mattress folding device is provided with multiple sets of guide posts 251 and guide sleeves 252, which helps to enhance the guiding effect on the displacement of the pressure block 240 and limit the rotation of the pressure block 240, making the displacement of the pressure block 240 more reliable and stable.

[0071] Reference Figure 1 , Figure 4 and Figure 5 As shown, it can be understood that the wall surface of the first sub-rod 211 adjacent to the second sub-rod 212 is provided with a receiving groove 2111 communicating with the through hole 2121, and the pressure block 240 is partially located in the receiving groove 2111.

[0072] Reference Figure 1 , Figure 4 and Figure 5 As shown, the pressure block 240 is partially disposed in the receiving groove 2111. The setting of the receiving groove 2111 can increase the setting length of the pressure block 240. The receiving groove 2111 allows the displacement actuator 230 to drive the pressure block 240 to reciprocate, which helps to eliminate the gap between the end face of the first sub-rod 211 near the second sub-rod 212 and the pressure block 240, and also helps to eliminate the problem of the first sub-rod 211 blocking the displacement of the pressure block 240. It also helps to increase the contact area between the pressure block 240 and the mattress. In the folded state, the mattress folding device ensures that the pressure block 240 can apply pressure to the folded edge 800 of the mattress, which helps to improve the folding effect of the mattress.

[0073] Reference Figure 1 , Figure 4 and Figure 5As shown, it can be understood that the angle between the second sub-rod 212 and the first sub-rod 211 is less than 90°, while the angle between the third sub-rod 213 and the second sub-rod 212 is greater than 90°. In the folded state, the rotary actuator 220 drives the first sub-rod 211 to rotate, thereby causing the second sub-rod 212 and the third sub-rod 213 to rotate synchronously. At this time, the third sub-rod 213, located at the end away from the rotary actuator 220, first comes into contact with the mattress and drives the mattress to bend and fold in half. When one side of the mattress is initially folded relative to the other side, the angle formed by the first sub-rod 211 and the second sub-rod 212 corresponds to the folded edge 800 of the mattress, thereby controlling the formation position of the folded edge 800 of the mattress. The second sub-rod 212 can be flipped onto the mattress. Above the folded edge 800 of the mattress, the displacement actuator 230 is connected to the second sub-rod 212. The pressure block 240 can move closer to or further away from the second sub-rod 212. When the displacement actuator 230 drives the pressure block 240 away from the second sub-rod 212, the pressure block 240 can apply pressure to the folded edge 800 of the mattress. The angle between the second sub-rod 212 and the first sub-rod 211 is less than 90°, so that the pressure block 240 applies pressure to the folded edge 800 of the mattress from the opening side of the mattress towards the folded edge 800 of the mattress. This is beneficial to improve the folding effect of the mattress, so that the two sides of the mattress are more closely attached at the folded edge 800. This is beneficial to suppress the flipping and unfolding angle of the two sides of the mattress after the pressure of the flipping component is eliminated.

[0074] Reference Figure 1 , Figure 4 and Figure 5 As shown, it can be understood that a roller 270 is rotatably connected at the connection between the third sub-rod 213 and the second sub-rod 212. When the mattress folding device is in the folded state, under the driving action of the rotary driver 220, as the third sub-rod 213 flips, the third sub-rod 213 first comes into contact with the mattress and then separates from it. The roller 270 can roll and connect with the mattress, so that the contact position between the folding component 200 and the mattress shifts from the third sub-rod 213 to the second sub-rod 212, thereby driving the mattress to bend further to complete the folding, and also helping to reduce the lateral displacement of the mattress caused by the flipping of the folding component 200.

[0075] Reference Figure 1 , Figure 3 and Figure 5 As shown, it can be understood that the folding assembly 200 also includes a connecting shaft 260, a folding rod 210, a pressure block 240 and a displacement driver 230, which together form a folding component. Multiple folding components are provided, and the multiple folding components are arranged at intervals along the length direction of the connecting shaft 260 and are all connected to the connecting shaft 260. The rotary driver 220 is connected to the connecting shaft 260 for transmission.

[0076] Reference Figure 1 , Figure 3 and Figure 5As shown, the rotary driver 220 is connected to the connecting shaft 260 to drive the connecting shaft 260 to rotate forward or backward, thereby driving multiple flipping components to flip synchronously. The folding assembly 200 folds multiple parts of the mattress simultaneously, which helps to improve the success rate of folding the mattress. Furthermore, the pressure applied to the mattress body and the folding edge 800 by the multiple folding components helps to improve the folding effect of the mattress. It also helps to reduce the angle at which the sides of the mattress flip and unfold after the pressure of the folding assembly 200 on the mattress is removed, thereby reducing the space occupied by the mattress in the height direction, which improves the folding effect of the mattress. This facilitates the subsequent conveying and rolling operations of the mattress and avoids the problem of conveying deviation or rolling failure caused by the mattress colliding with the external conveying mechanism or the input port of the rolling machine.

[0077] Understandably, the mattress folding device also includes: a connecting component 300, a pressure plate 700, and a transfer mechanism 600.

[0078] Reference Figure 1 As shown, the material support plate includes a frame, multiple rotating rollers, and a rotary driver 220. The multiple rotating rollers are rotatably connected to the frame and are arranged parallel to each other at equal intervals. The multiple rotating rollers together define the conveying surface 110. The rotary driver 220 can be a servo motor and is connected to the multiple rotating rollers to drive them to rotate synchronously. When the mattress is conveyed onto the conveying surface 110, it is conveyed towards the center of the conveying surface 110 by the conveying action of the multiple roller shafts 500.

[0079] Reference Figure 1 , Figure 7 and Figure 8 As shown, at least two connecting components 300 are provided. The pressure plate 700 is connected to at least two connecting components 300. Specifically, the pressure plate 700 is provided with at least two second connecting holes 430. One end of the connecting seat 310 is provided with a first connecting hole 313, and the first connecting hole 313 and the second connecting hole 430 are arranged opposite to each other. At least one of the first connecting hole 313 and the second connecting hole 430 is a strip hole, which is arranged laterally. After the fastener 320 passes through the first connecting hole 313 and the second connecting hole 430, it fixes the connecting seat 310 and the pressure plate 700. By adjusting the position of the fastener 320 in the strip hole, it is beneficial to compensate for the hole position deviation caused by assembly error or processing error. The transfer mechanism 600 is connected to the other end of the connecting seat 310. That is, through the connecting action of the connecting components 300, the transfer mechanism 600 and the pressure plate 700 are connected, which helps to avoid the problem of the pressure plate 700 getting stuck and causing assembly failure.

[0080] Reference Figure 1 , Figure 7 and Figure 8As shown, the material rack 100 has a conveying surface 110 for conveying mattresses. The pressure plate 700 is located above the conveying surface 110 and is arranged parallel to the conveying surface 110. Under the driving action of the transfer mechanism 600, the pressure plate 700 is driven to move closer to or away from the conveying surface 110. When the pressure plate 700 moves closer to the conveying surface 110, the pressure plate 700 can abut against the mattress on the conveying surface 110 to achieve tight pressure on the mattress. With the folding component 200, the mattress can be folded in half to reduce the packaging volume of the mattress. The mattress folding device is flexibly connected to the pressure plate 700 through the connecting component 300, which helps to reduce the assembly difficulty of the pressure plate 700 and facilitates the assembly of the pressure plate 700 and the transfer mechanism 600.

[0081] Reference Figure 1 , Figure 9 and Figure 10 As shown, it can be understood that, specifically, the pressure plate 700 has second connecting holes 430 at both ends along its length direction. The length direction of the strip hole is consistent with the length direction of the pressure plate 700, that is, the length direction of the strip hole is adapted to the length direction of the pressure plate 700. At least one of the first connecting hole 313 and the second connecting hole 430 is a strip hole to ensure that the first connecting hole 313 can be opposite to and communicate with the second connecting hole 430. After the fastener 320 passes through the first connecting hole 313 and the second connecting hole 430, it can fix the connecting seat 310 and the pressure plate 700. That is, through the connecting action of the connecting component 300, the connection between the transfer mechanism 600 and the pressure plate 700 is realized, which helps to avoid the problem of the pressure plate 700 getting stuck or failing to assemble due to the processing error in the length direction.

[0082] It should be understood that in some other embodiments, the pressure plate 700 is provided with second connecting holes 430 at both ends along its width direction. The length direction of the strip hole is consistent with the width direction of the pressure plate 700, that is, the length direction of the strip hole is adapted to the width direction of the pressure plate 700. At least one of the first connecting hole 313 and the second connecting hole 430 is a strip hole to ensure that the first connecting hole 313 can be opposite to and communicate with the second connecting hole 430. After the fastener 320 passes through the first connecting hole 313 and the second connecting hole 430, it can fix the connecting seat 310 and the pressure plate 700. That is, the connection between the transfer mechanism 600 and the pressure plate 700 is realized through the connecting action of the connecting component 300. This helps to avoid the problem of the pressure plate 700 getting stuck and causing assembly failure. Moreover, by adjusting the position of the fastener 320 in the strip hole, the length direction of the pressure plate 700 can be arranged at a right angle to the length direction of the rotating roller, so that the edge of the pressure plate 700 can be parallel to or overlap with the center line of the mattress.

[0083] Reference Figure 1 , Figure 8 and Figure 10As shown, it can be understood that in this embodiment, the pressure plate 700 includes a plate body and a connecting block 400. The two ends of the plate body are respectively connected to the connecting block 400. The connecting block 400 is provided with a second connecting hole 430. The fastener 320 includes a connecting post and a limiting ring. The connecting post passes through the first connecting hole 313 and the second connecting hole 430 and is fixedly connected to the limiting ring.

[0084] Reference Figure 1 , Figure 8 and Figure 10 As shown, connecting blocks 400 are connected to both ends of the plate. The connecting blocks 400 are provided with second connecting holes 430. The connection between the connecting blocks 400 and the plate helps to reduce the inconvenience of machining holes on the plate, so as to facilitate the connection of plates of different specifications or types with the connecting assembly 300. The fastener 320 includes a connecting post and a limiting ring. The connecting post passes through the first connecting hole 313 and the second connecting hole 430 and is fixedly connected to the limiting ring. Under the joint clamping action of the connecting post and the limiting ring, the pressure plate 700 and the connecting seat 310 are fixedly connected.

[0085] Reference Figure 1 , Figure 8 and Figure 10 As shown, specifically, the connecting post can be a bolt, which includes a head end and a threaded end, and the limiting ring can be a nut. The threaded end of the bolt passes through the first connecting hole 313 and the second connecting hole 430 and is threadedly connected to the nut. The fixed connection between the pressure plate 700 and the connecting seat 310 is achieved by screwing the nut and the threaded end together.

[0086] Reference Figure 1 , Figure 9 and Figure 10 As shown, it can be understood that the connecting block 400 includes a base block, a first sub-block 410 and a second sub-block 420 spaced apart. The first sub-block 410 and the second sub-block 420 are respectively connected to both ends of the base block to jointly define the receiving groove 2111. The first sub-block 410 and the second sub-block 420 are respectively provided with a second connecting hole 430, and both second connecting holes 430 are connected to the receiving groove 2111.

[0087] Reference Figure 1 , Figure 9 and Figure 10 As shown, the connector 310 is partially inserted between the first sub-block 410 and the second sub-block 420, that is, the connector 310 can be inserted into the receiving groove 2111, and the first connecting hole 313 is located between the two second connecting holes 430. The fastener 320 passes through one of the second connecting holes 430, the first connecting hole 313 and the other second connecting hole 430 in sequence.

[0088] Reference Figure 1 , Figure 9 and Figure 10As shown, the connecting seat 310 is partially inserted between the first sub-block 410 and the second sub-block 420. The contact between the connecting seat 310 and the first sub-block 410 or the second sub-block 420 helps to limit the connection between the connecting seat 310 and the pressure plate 700. The first connecting hole 313 is located between the two second connecting holes 430. After the fastener 320 passes through one of the second connecting holes 430, the first connecting hole 313 and the other second connecting hole 430, the connection between the pressure plate 700 and the connecting seat 310 can be realized. The structural arrangement of the connecting block 400 in this mattress folding device helps to improve the stability of the connection between the connecting seat 310 and the pressure plate 700.

[0089] Reference Figure 1 , Figure 9 and Figure 10 As shown, the connecting seat 310 includes a first enclosure plate, a second enclosure plate, a third enclosure plate, and a fourth enclosure plate. These four enclosure plates are connected sequentially to collectively define an upwardly open cavity 311. First connecting holes 313 are provided on the walls of the first and third enclosure plates. At least two connecting blocks 400 are connected to each end of the plate, and the connecting blocks 400 are partially inserted into the cavity 311. The multiple first connecting holes 313 are located on the same horizontal plane to ensure that after the pressure plate 700 is connected to the connecting seat 310, the pressure plate 700 is parallel to the conveying surface 110.

[0090] Reference Figure 1 , Figure 9 and Figure 10 As shown, each connecting block 400 is correspondingly provided with a first connecting hole 313. The first or third surrounding plate is inserted into the receiving groove 2111 to realize the connection between the connecting block 400 and the connecting seat 310, so that the first sub-block 410 or the second sub-block 420 is located in the cavity, and the connection is achieved by the fastener 320.

[0091] Reference Figure 1 , Figure 9 and Figure 10 As shown, the mattress folding device has at least two connecting blocks 400 at both ends of the board. The multi-point connection method helps to improve the stability of the connection between the pressure plate 700 and the connecting seat 310. At least one of the first connecting hole 313 and the second connecting hole 430 is a strip hole to ensure that multiple connecting blocks 400 can be connected to the connecting seat 310 to compensate for deviations caused by processing errors and assembly errors.

[0092] Reference Figure 1 , Figure 9 and Figure 10As shown, it can be understood that the first connecting hole 313 on the connecting seat 310 is a strip-shaped hole, and the length direction of the first connecting hole 313 is consistent with the length direction of the pressure plate 700. The second connecting hole 430 is a round hole. The fastener 320 is set through the first connecting hole 313 and the second connecting hole 430. By adjusting the position of the fastener 320 in the strip-shaped hole, it is beneficial to compensate for the hole position deviation caused by assembly error or processing error. The transfer mechanism 600 is connected to the other end of the connecting seat 310, that is, through the connecting action of the connecting component 300, the transfer mechanism 600 and the pressure plate 700 are connected, which helps to avoid the problem of the pressure plate 700 getting stuck and causing assembly failure.

[0093] It should be understood that in some other embodiments, the second connecting hole 430 of the pressure plate 700 is a strip hole, and the length direction of the first connecting hole 313 is consistent with the length direction of the pressure plate 700. The first connecting hole 313 on the connecting seat 310 is a round hole. The fastener 320 is set through the first connecting hole 313 and the second connecting hole 430. By adjusting the position of the fastener 320 in the strip hole, it is beneficial to compensate for the hole position deviation caused by assembly error or processing error. The transfer mechanism 600 is connected to the other end of the connecting seat 310, that is, the connection between the transfer mechanism 600 and the pressure plate 700 is realized through the connecting action of the connecting component 300, which helps to avoid the problem of the pressure plate 700 getting stuck and causing assembly failure.

[0094] It should be understood that in some other embodiments, the second connecting hole 430 of the pressure plate 700 and the first connecting hole 313 on the connecting seat 310 are both strip holes, and the length direction of the strip hole is consistent with the length direction of the pressure plate 700. The fastener 320 is set through the first connecting hole 313 and the second connecting hole 430. By adjusting the position of the fastener 320 in the strip hole, it is beneficial to compensate for the hole position deviation caused by assembly error or processing error. The transfer mechanism 600 is connected to the other end of the connecting seat 310, that is, the connection between the transfer mechanism 600 and the pressure plate 700 is realized through the connecting action of the connecting component 300, which helps to avoid the problem of the pressure plate 700 getting stuck and causing assembly failure.

[0095] Reference Figure 1 , Figure 9 and Figure 10 As shown, it can be understood that in this embodiment, the connecting seat 310 is provided with a notch 312 communicating with the cavity 311, and the notch 312 is located between the two first connecting holes 313.

[0096] Reference Figure 1 , Figure 9 and Figure 10As shown, specifically, the connecting seat 310 is provided with a notch 312 communicating with the cavity 311. After the connecting post passes through the first connecting hole 313 and the second connecting hole 430, the end of the connecting post is located in the cavity 311. The user can pass through the notch 312 to achieve a fixed connection between the limiting ring and the connecting post. The setting of the notch 312 is conducive to increasing the user's operating space, so as to improve the connection efficiency between the pressure plate 700 and the connecting seat 310.

[0097] Reference Figure 1 , Figure 9 and Figure 10 As shown, specifically, both the second and fourth enclosures are provided with notches 312, and the notches 312 penetrate the end of the second or fourth enclosure near the opening of the cavity 311. The user can pass through the notches 312 to achieve a fixed connection between the limiting ring and the connecting column. The setting of the notches 312 helps to increase the user's operating space, thereby improving the connection efficiency between the pressure plate 700 and the connecting seat 310.

[0098] Reference Figure 1 , Figure 9 and Figure 10 As shown, it can be understood that, specifically, the transfer mechanism 600 includes a lifting component 610, which is located below the conveying surface 110 and connected to the lower end of the connecting seat 310. Under the driving action of the lifting component 610, the pressure plate 700 can be raised and lowered relative to the conveying surface 110, so that the pressure plate 700 can be pressed tightly against or separated from the mattress on the conveying surface 110. In conjunction with the folding component 200, the mattress can be folded in half.

[0099] Reference Figure 1 , Figure 9 and Figure 10 As shown, specifically, the lifting component 610 can be a cylinder, and the connecting seat 310 can be fixedly connected to the movable end 232 of the cylinder by bolts or other threaded parts. By extending and retracting the cylinder, the connecting seat 310 and the pressure plate 700 are driven to move up and down.

[0100] Reference Figure 1 , Figure 9 and Figure 10 As shown, a groove is formed between two adjacent rotating rollers, and the connecting seat 310 can be installed through the groove to avoid the problem of interference between the lifting and lowering of the connecting seat 310 and the rotation of the rotating rollers.

[0101] Reference Figure 1 , Figure 9 and Figure 10As shown, it is understood that, specifically, the transfer mechanism 600 also includes a lateral movement component 620, which is connected to the lifting component 610 to drive the lifting component 610 to reciprocate along the width direction of the pressure plate 700. Under the driving action of the lateral movement component 620, the pressure plate 700 can be moved to the top of the mattress on the conveying surface 110. In conjunction with the lifting component 610, the pressure plate 700 presses firmly against the mattress. After folding, the pressure plate 700 is located in the middle of the folded mattress. The lifting component 610 can drive the pressure plate 700 to separate from the mattress below. In conjunction with the operation of the lateral movement component 620, the pressure plate 700 can be removed from the middle of the folded mattress. Through the cooperation of the lifting component 610 and the lateral movement component 620, the pressure plate 700 can be moved to the top of the folded mattress. The pressure plate 700 applies pressure to the folded mattress again to improve the folding effect of the mattress.

[0102] Reference Figure 1 , Figure 9 and Figure 10 As shown, specifically, the transverse movement component 620 includes a belt 622, a drive motor 625, and at least two pulleys 621. The two pulleys 621 are arranged at intervals along the width direction of the pressure plate 700. The pulleys 621 are rotatably connected to the material support frame 100. The belt 622 is wound between the two pulleys 621. The drive motor 625 is used to drive the pulleys 621 to rotate. The lifting component 610 is fixedly connected to the belt 622. Through the forward and reverse driving of the drive motor 625, the lifting component 610 and the pressure plate 700 can be driven to reciprocate along the width direction of the pressure plate 700.

[0103] Reference Figure 1 , Figure 9 and Figure 10 As shown, the lateral movement component 620 also includes a guide rail 623 along the width direction of the pressure plate 700. The lifting component 610 is slidably connected to the guide rail 623. Through the slidable connection between the lifting component 610 and the guide rail 623, and in conjunction with the connection between the belt 622 and the lifting component 610, the stability of the lateral movement of the lifting component 610 is ensured.

[0104] Reference Figure 1 , Figure 7 and Figure 8As shown, specifically, the slide rail, lifting component 610, belt 622, and at least two pulleys 621 together constitute the transfer component. Both ends of the pressure plate 700 are connected to the transfer component, which is connected to the connecting seats 310 at both ends. The lateral movement component 620 also includes a drive shaft 624, with its two ends connected to the front pulley 621 and the rear pulley 621, respectively. Taking a front-to-back arrangement of the two sets of transfer components as an example, the front lifting component 610 is slidably connected to the front guide rail 623, and the rear lifting component 610 is slidably connected to the rear guide rail 623. The drive motor 625 is connected to the drive shaft 624 to drive the drive shaft 624 to rotate, thereby driving the front and rear pulleys 621 to rotate synchronously, that is, driving the front and rear lifting components 610 to move synchronously laterally.

[0105] Reference ​ , ​ and ​ As shown, it can be understood that, specifically, the pressure plate 700 is rotatably connected to the roller 500, and the upper end of the roller 500 is located above the upper end of the pressure plate 700. Under the driving action of the transfer mechanism 600, the pressure plate 700 is pressed tightly against the center line of the mattress. With the cooperation of the folding component 200, one half of the mattress can be folded relative to the other half of the mattress along the center line, that is, the mattress is folded in half. At this time, the pressure plate 700 is clamped in the middle of the folded mattress. Under the driving action of the lifting component 610, the pressure plate 700 can be separated from the mattress below. The upper end of the roller 500 is located above the upper end of the pressure plate 700, and the roller 500 abuts against the mattress above. Through the rolling connection between the roller 500 and the mattress, under the driving action of the lateral movement component 620, the pressure plate 700 can be removed from the middle of the folded mattress. The setting of the roller 500 helps to reduce the lateral displacement of the mattress caused by the lateral movement of the pressure plate 700.

[0106] In traditional pressing assemblies, when a mattress is folded in half, the mattress's elasticity causes the two sides to flip and unfold at a certain angle, resulting in a large space occupied in the height direction. Therefore, traditional pressing assemblies have a large stroke in the height direction, generally requiring multi-stage drive in the height direction, which is costly. Furthermore, due to the large stroke in the height direction, it is difficult for pneumatically driven cylinders to ensure the parallelism of the two sides of the pressing plate 700, which can easily lead to jamming of the pressing plate 700 or the transfer mechanism 600.

[0107] The mattress folding device provided in this embodiment of the invention improves the folding effect of the mattress by structurally improving the folding component 200. This results in a smaller space occupied by the folded mattress in the height direction, thereby reducing the stroke of the lifting component 610 in the height direction. The stroke requirement can be met by a single-stage drive, resulting in lower cost. Furthermore, for pneumatically driven cylinders, the shortened pneumatic stroke helps ensure the parallelism of both sides of the pressure plate 700. With the connection structure between the connecting seat 310 and the pressure plate 700, the fastener 320 can move to a certain extent within the slot, thus preventing the pressure plate 700 or the transfer mechanism 600 from jamming.

[0108] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A mattress folding device, characterized in that, include: The material support frame (100) has a conveyor surface (110) for supporting the mattress; The folding assembly (200) includes a rotary driver (220), a folding rod (210), a displacement driver (230), and a pressure block (240). The rotary driver (220) is throttle-connected to the folding rod (210) to drive the folding rod (210) to fold relative to the material support frame (100). The displacement driver (230) is connected to the folding rod (210) and throttle-connected to the pressure block (240) to drive the pressure block (240) to move away from or closer to the folding rod (210). The mattress folding device is configured to have a retracted state and a folded state. In the retracted state, the rotary driver (220) drives the folding rod (210) to flip downwards to below the conveying surface (110), and the displacement driver (230) drives the pressure block (240) to approach the folding rod (210). In the folded state, the rotary driver (220) drives the folding rod (210) to flip upwards, lifting one side of the mattress and bending it towards the other side to complete the folding. The displacement driver (230) drives the pressure block (240) away from the folding rod (210), so that the pressure block (240) applies pressure to the folded edge (800) of the mattress.

2. The mattress folding device according to claim 1, characterized in that: The folding rod (210) includes a first sub-rod (211), a second sub-rod (212), and a third sub-rod (213). One end of the first sub-rod (211) is connected to the rotary actuator (220), and the other end of the first sub-rod (211) is connected to one end of the second sub-rod (212). The second sub-rod (212) is arranged at an angle to the first sub-rod (211). The displacement actuator (230) is connected to the second sub-rod (212). The pressure block (240) is configured to move away from or closer to the second sub-rod (212). In the folded state, the second sub-rod (212) is configured to flip over to the top of the folded edge (800). The other end of the second sub-rod (212) is connected to the third sub-rod (213). The third sub-rod (213) is arranged at an angle to the second sub-rod (212), and the third sub-rod (213) extends away from the rotary actuator (220).

3. The mattress folding device according to claim 2, characterized in that: The displacement actuator (230) includes a fixed end (231) and a movable end (232) that are telescopic to each other. The fixed end (231) is connected to the second sub-rod (212), and the movable end (232) is connected to the pressure block (240), which is configured to reciprocate along the length of the first sub-rod (211).

4. The mattress folding device according to claim 2, characterized in that: The folding assembly (200) further includes a guide post (251) and a guide sleeve (252). The guide sleeve (252) is connected to the folding rod (210). The guide sleeve (252) is provided with a guide hole. One end of the guide post (251) is connected to the pressure block (240), and the other end of the guide post (251) passes through the guide hole and is slidably connected to the guide sleeve (252).

5. The mattress folding device according to claim 4, characterized in that: The second sub-rod (212) is provided with a through hole (2121), the displacement actuator (230) passes through the through hole (2121) and is connected to the pressure block (240), and the guide post (251) passes through the through hole (2121) and is connected to the guide sleeve (252).

6. The mattress folding device according to claim 5, characterized in that: The first sub-rod (211) has a receiving groove (2111) on the wall adjacent to the second sub-rod (212), and the pressure block (240) is partially disposed in the receiving groove (2111).

7. The mattress folding device according to claim 2, characterized in that: The angle between the second sub-rod (212) and the first sub-rod (211) is less than 90°, and the angle between the third sub-rod (213) and the second sub-rod (212) is greater than or equal to 90°; and / or, A roller (270) is rotatably connected at the connection between the third sub-rod (213) and the second sub-rod (212).

8. The mattress folding device according to any one of claims 1 to 7, characterized in that: The folding assembly (200) also includes a connecting shaft (260). The folding rod (210), the pressure block (240), and the displacement driver (230) together form a folding component. Multiple folding components are provided. The multiple folding components are arranged at intervals along the length direction of the connecting shaft (260) and are all connected to the connecting shaft (260). The rotary driver (220) is connected to the connecting shaft (260) in a driving connection.

9. The mattress folding device according to claim 1, characterized in that: It also includes a pressure plate (700), a transfer mechanism (600), and at least two connecting assemblies (300). Each connecting assembly (300) includes a connecting seat (310) and a fastener (320). One end of the connecting seat (310) has a first connecting hole (313). The pressure plate (700) is located above and parallel to the conveying surface (110). The pressure plate (700) is connected to at least two of the connecting assemblies (300), and the pressure plate (700) has at least two second connecting holes (430). The second connecting hole (430) is opposite to the first connecting hole (313), and at least one of the second connecting hole (430) and the first connecting hole (313) is a transverse strip hole. The fastener (320) passes through the first connecting hole (313) and the second connecting hole (430) and fixes the connecting seat (310) and the pressure plate (700). The transfer mechanism (600) is connected to the other end of the connecting seat (310) to drive the pressure plate (700) to move closer to or away from the conveying surface (110).

10. The mattress folding device according to claim 9, characterized in that: The pressure plate (700) has second connecting holes (430) at both ends along its length, and the length direction of the strip-shaped hole is consistent with the length direction of the pressure plate (700); and / or, The pressure plate (700) includes a plate body and a connecting block (400). The two ends of the plate body are respectively connected to the connecting block (400). The connecting block (400) is provided with a second connecting hole (430). The fastener (320) includes a connecting post and a limiting ring. The connecting post passes through the first connecting hole (313) and the second connecting hole (430) and is fixedly connected to the limiting ring.

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