Bed net hemming apparatus and method

Abstract

The application discloses a bed net frame fixing device and method, wherein the device comprises a first conveying platform, a limiting piece, at least one pressing assembly and at least one fixing device. The bed net with the frame is conveyed along the first direction by the first conveying platform, the bed net and / or the frame is abutted with the limiting piece to complete the preliminary positioning, the upper surface and / or the lower surface of the bed net is pressed by the pressing assembly and the bed net and / or the frame is moved along the direction perpendicular to the first direction to the limiting piece, then the first driving mechanism of the fixing device drives the nail gun to move, the nail gun is close to the side of the bed net and the frame, the nail gun fixes the bed net spring and the frame, the bed net spring, the frame and the supporting spring at each position of the side of the bed net are fixed along with the forward conveying of the first conveying platform, and the frame fixing of the bed net is completed. Compared with the existing manual nail gun fixing operation mode, the production efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of mattress manufacturing, and in particular to a bed frame edge-making device and method. Background Technology

[0002] Spring mattresses use non-woven fabric or wire to connect the springs, which provides some elasticity. This makes the mattress edges prone to deformation and sagging, and the mattress can stretch and elongate, resulting in inconsistent dimensions. To improve stability, metal frames are typically attached to the top and bottom edges of the mattress, or support springs are installed on the four sides. Currently, spring mattress production is automated from the production of the spring strings to their assembly into the mattress, and subsequent processes such as cutting, quilting, wrapping, and edging of the cushioning layer and fabric, as well as mattress packaging, are also automated to some extent. Only the process of fixing the frame to the mattress springs is still done manually using a C-shaped nail gun, resulting in low production efficiency. Summary of the Invention

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to propose a bed net frame-making device that can improve production efficiency.

[0004] The present invention also proposes a method for attaching a frame to a bed net, wherein the frame is fixed to the bed net using the aforementioned bed net attaching equipment.

[0005] According to a first aspect of the present invention, a bed frame edge-sealing device is provided, comprising:

[0006] The first conveying platform is used to convey a bed net with upper and lower frames along the first direction;

[0007] At least one fixing device is disposed on one side of the first conveying platform. The fixing device includes a first drive mechanism and at least one nail gun. The first drive mechanism is used to drive the nail gun to move close to one side of the frame and the bed net. The nail gun is used to fix the frame to the bed net.

[0008] A limiting member, disposed on the same side of the fixing device, is used to abut against the bed frame and / or the side frame; and

[0009] At least one clamping component is provided in the vertical direction on the side of the mattress with a frame to clamp the upper and / or lower surfaces of the mattress and drive the mattress and / or frame to move toward the limiting member in a direction perpendicular to the first direction.

[0010] The aforementioned bed netting edging equipment has at least the following beneficial effects: A bed netting with upper and lower edges is conveyed along a first direction via a first conveying platform, bringing the bed netting and / or edges into contact with limiting members for initial positioning. A pressing component presses the upper and / or lower surfaces of the bed netting and drives the bed netting and / or edges to move towards the limiting members in a direction perpendicular to the first direction. Then, the first driving mechanism of the fixing device drives the nail gun to move, bringing it close to one side of the edges and the bed netting. The nail gun fixes the springs of the bed netting to the edges. As the first conveying platform conveys the bed netting forward, it fixes the springs of the bed netting at various positions on the side of the bed netting to the edges, completing the bed netting edging. Compared with the existing method of manually holding a nail gun for fixing, this greatly improves production efficiency.

[0011] According to the first aspect of the present invention, the bed netting frame-making device includes two sets of fixing devices, namely a first fixing device and a second fixing device arranged vertically opposite each other; two sets of pressing components, namely a first pressing component and a second pressing component arranged vertically opposite each other; the bed netting frame-making device further includes a lifting mechanism, which is used to drive the first fixing device and the first pressing component to move vertically.

[0012] According to a first aspect embodiment of the present invention, the bed mesh frame-making device includes a first driving member and a pressing member. The pressing member is used to press the bed mesh, and the pressing member is provided with a fixing structure for forming a relatively fixed relationship with the bed mesh. The first driving member is used to drive the pressing member to move toward the limiting member in a direction perpendicular to the first direction.

[0013] According to the first aspect of the present invention, the bed frame edge-making device has a fixing structure consisting of a plurality of needles disposed at the bottom of the pressing member.

[0014] According to the first aspect of the present invention, the bed frame forming device includes a pressing component, the guide component having a guide groove inclined relative to the first direction, the guide groove being used to cooperate with the side of the frame so that the side of the frame moves toward the limiting component during the forward conveying process of the first conveying platform.

[0015] According to the first aspect of the present invention, the bed netting frame-making device has a direct push assembly on the opposite side of the limiting member of the first conveying platform. The direct push assembly is used to push the bed netting so that the bed netting abuts against the limiting member.

[0016] According to a first aspect embodiment of the present invention, the bed netting frame-fitting device further includes a first detector, which is disposed on the same side of the fixing device. The first detector is used to detect a predetermined part of the bed netting spring. The first detector is disposed upstream of the fixing device and at a predetermined distance. The bed netting frame-fitting device records the distance the first conveying platform moves the bed netting from the predetermined part of the bed netting spring until the predetermined distance is reached. The fixing device is then activated to fix the bed netting spring to the frame.

[0017] According to the first aspect of the present invention, the bed netting frame-making device further includes a steering and pushing assembly disposed downstream of the fixing device. The steering and pushing assembly includes a side pusher that is rotatably disposed horizontally to push the bed netting to rotate.

[0018] According to the bed netting frame assembly of the first aspect embodiment of the present invention, the steering and pushing assembly further includes a second conveying platform and a pressing member, the second conveying platform being connected downstream of the first conveying platform, and the pressing member being movably disposed on the side pushing member for applying pressure to the bed netting on the second conveying platform.

[0019] According to the bed frame mounting device of the first aspect of the present invention, the fixing device further includes a clamp, which is arranged in parallel with the nail gun, and is used to pre-clamp and fix the frame and the bed frame spring before the nail gun is started.

[0020] According to the bed frame edge-making device of the first aspect of the present invention, the fixing device further includes a disc feeding mechanism disposed at the end of the nail gun, the disc feeding mechanism being used to continuously feed nails to the nail gun.

[0021] According to the first aspect of the present invention, the bed netting edge-forming device further includes a pressure roller assembly disposed above the first conveying platform, the pressure roller assembly including at least one pressure roller, the pressure roller being rotatably and vertically swinging.

[0022] According to the first aspect of the present invention, the bed netting frame-making device further includes a lifting and conveying assembly disposed above the first conveying platform. The lifting and conveying assembly is vertically and vertically disposed, and cooperates with the first conveying platform to clamp and convey the bed netting.

[0023] According to the first aspect of the present invention, the bed net frame making device further includes a support spring feeding device disposed on the same side of the fixing device. The support spring feeding device includes a first material rack and a material picking mechanism. The first material rack is used to store support springs, and the material picking mechanism is used to grab the support springs on the first material rack and place the support springs between the upper and lower frame edges.

[0024] According to a first aspect embodiment of the present invention, the bed netting frame-making device includes a material-picking mechanism and a second driving mechanism. The material-picking mechanism is used to pick up the support spring on the first material rack, and the second driving mechanism is used to drive the material-picking mechanism to move from the position of the first material rack to the side of the bed netting on the first conveying platform.

[0025] According to a first aspect embodiment of the present invention, the bed netting frame-making device further includes a frame positioning device, which includes: a frame fixing platform disposed upstream of the first conveying platform; a frame feeding assembly for providing the frame; a frame picking assembly for picking up the frame on the frame feeding assembly and transferring the frame to above the frame fixing platform; and a third fixing device for fixing the frame to the bed netting spring on the frame fixing platform.

[0026] According to the first aspect of the present invention, the bed net frame-making device further includes a flipping device, the flipping device including a third conveying platform and a flipping mechanism, the third conveying platform being disposed upstream of the frame fixing platform, and the flipping mechanism being disposed on the third conveying platform for flipping the bed net vertically.

[0027] According to a second aspect of the present invention, a method for attaching a frame to a bed net is provided, wherein the frame is fixed to the bed net using the bed net frame attaching device of any of the above embodiments, comprising the following steps:

[0028] The bed net with upper and lower frames is conveyed along the first direction by the first conveying platform;

[0029] Abut the bed frame and / or side frame against the limiting member;

[0030] The clamping assembly clamps the upper and / or lower surfaces of the bed net and drives the bed net and / or frame to move toward the limiting member in a direction perpendicular to the first direction;

[0031] The first drive mechanism of the fixing device drives the nail gun to move, so that the nail gun is close to one side of the frame and the bed net, and the nail gun fixes the bed net spring to the frame. Attached Figure Description

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0033] Figure 1 This is a schematic diagram of the structure of the bed mesh frame-making device according to an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the planar structure of two fixing devices and two clamping components according to an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the structure of two fixing devices according to an embodiment of the present invention;

[0036] Figure 4 This is a schematic diagram of the structure of the clamping assembly according to an embodiment of the present invention;

[0037] Figure 5 This is a cross-sectional structural diagram of the limiting member and the guide member according to an embodiment of the present invention;

[0038] Figure 6 This is a top view of the limiting member and the guide member according to an embodiment of the present invention;

[0039] Figure 7 This is a simplified schematic diagram of the first detector detecting a predetermined part of the bed spring in an embodiment of the present invention;

[0040] Figure 8 This is a schematic diagram of the structure of the pressure roller assembly according to an embodiment of the present invention;

[0041] Figure 9 This is a schematic diagram of the lifting and conveying assembly according to an embodiment of the present invention;

[0042] Figure 10 This is a schematic diagram of the support spring feeding device according to an embodiment of the present invention;

[0043] Figure 11 This is a schematic diagram of the material handling mechanism according to an embodiment of the present invention;

[0044] Figure 12 This is a schematic diagram of the structure of a bed wire mesh frame-making device according to another embodiment of the present invention;

[0045] Figure 13 This is a schematic diagram of the structure of the third fixing device in this embodiment of the invention for initially fixing the frame of the bed net;

[0046] Figure 14 This is a schematic diagram of the structure of a bed net with a fixed frame and support springs according to an embodiment of the present invention.

[0047] Reference numerals: First conveying platform 100, support spring feeding device 200, first material rack 210, material picking mechanism 220, material picking component 221, third support 222, fourth driving component 223, fifth driving component 224, sixth driving component 225, pressing assembly 300, first pressing assembly 301, second pressing assembly 302, first driving component 310, pressing component 320, second driving component 330, first support 340, guide component 350, guide groove 351, needle punch 360, fixing device 400, first fixing device 401, second fixing device 402, first driving mechanism 410, nail gun 420, lifting... The components include: a lowering mechanism 430, a fourth support 440, a gripper 450, a disc feeding mechanism 460, a limiting component 510, a direct push assembly 520, a first detector 610, a pressure roller 620, a second support 630, a lifting and conveying assembly 640, a steering and pushing assembly 700, a side push component 710, a second conveying platform 720, a pressing component 730, a rotating shaft 740, a roller 750, a third driving component 760, a frame positioning device 800, a frame fixing platform 810, a frame feeding assembly 820, a frame picking assembly 830, a third fixing device 840, a flipping device 900, a third conveying platform 910, and a flipping mechanism 920. Detailed Implementation

[0048] 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.

[0049] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] Reference Figures 1 to 6 This invention provides a bed frame edge-forming device, including a first conveying platform 100, a limiting member 510, at least one pressing component 300 and at least one fixing device 400.

[0052] In this embodiment, the bed net is formed by combining multiple bed net springs. It is understood that the bed net springs can be pocket springs or individual spring units, etc.

[0053] The first conveying platform 100 is used to convey a bed net with upper and lower frames along a first direction (the forward direction in the attached figure). Specifically, the first conveying platform 100 can be a conveyor belt. (See reference...) Figure 14 It is a bed frame structure with frames at the top and bottom.

[0054] A fixing device 400 is disposed on one side of the first conveying platform 100 (right side in the attached figure). The fixing device 400 includes a first drive mechanism 410 and at least one nail gun 420. The first drive mechanism 410 is used to drive the nail gun 420 to move close to one side of the frame and the bed net. The nail gun 420 is used to fix the frame and the bed net together. When the nail gun 420 is working, it fires clamping nails, which clamp the bed net spring to the frame through the clamping action of the clamping nails. Specifically, the first drive mechanism 410 can be a cylinder or other drive mechanism.

[0055] The limiting member 510 is disposed on the same side of the fixing device 400 (the right side in the attached figure). The limiting member 510 is used to abut against the side of the bed net and / or the side of the frame to achieve positioning of the bed net or the frame.

[0056] The clamping assembly 300 is disposed in the vertical direction (i.e. above or below the bed net) on the surface of the bed net with the frame, and is disposed close to the fixing device 400. The clamping assembly 300 is used to clamp the upper surface and / or lower surface of the bed net and drive the bed net and / or frame to move toward the limiting member 510 in a direction perpendicular to the first direction (the left and right direction in the figure).

[0057] When the fixing device 400 is nailed, the position of the bed net and the frame is maintained to ensure the accuracy of the nailing position. However, since the non-woven fabric has a certain elasticity, the bed net is prone to local deformation, which makes it difficult to fix its shape. In this embodiment, the bed net is pressed by the clamping component 300. Specifically, the part of the bed net near the fixing device 400 (that is, near the nailing position) is pressed, and this part is pulled to make it close to and hold against the limiting member 510, and then fixed by nailing by the fixing device 400. Similarly, since the frame is long, the shape of the frame is also prone to deformation. The clamping component 300 is used to press the part of the frame at the nailing position close to and hold against the limiting member 510.

[0058] The bed netting edging device of this embodiment uses a first conveying platform 100 to transport a bed netting with upper and lower frames along a first direction. The bed netting and / or frames are brought into contact with a limiting member for initial positioning. A pressing component 300 presses the upper and / or lower surfaces of the bed netting and moves the bed netting and / or frames toward the limiting member 510 in a direction perpendicular to the first direction. Then, the first driving mechanism 410 of the fixing device 400 drives the nail gun 420 to move, bringing it close to one side of the frame and the bed netting, thus fixing the bed netting springs to the frame. As the first conveying platform 100 moves the bed netting forward, the bed netting springs at various positions on the side of the bed netting are fixed to the frame, completing the bed netting edging. Compared with the existing method of manually holding a nail gun for fixing, this greatly improves production efficiency.

[0059] Reference Figure 2 and Figure 3 In some embodiments, the fixing device 400 has two sets, namely a first fixing device 401 and a second fixing device 402 arranged vertically opposite each other, and the first fixing device 401 and the second fixing device 402 are inclined at a certain angle; correspondingly, the clamping assembly 300 has two sets, namely a first clamping assembly 301 and a second clamping assembly 302 arranged vertically opposite each other. The first fixing device 401 can fix the upper frame to the upper end of the bed net spring, and correspondingly, the first clamping assembly 301 clamps the upper surface of the bed net; the second fixing device 402 fixes the lower frame to the lower end of the bed net spring, and the second clamping assembly 302 clamps the lower surface of the bed net. The bed net framing device also includes a lifting mechanism 430. The first fixing device 401 and the first clamping assembly 301 located above are fixed to the fourth bracket 440. The lifting mechanism 430 drives the fourth bracket 440 to move up and down, thereby driving the first fixing device 401 and the first clamping assembly 301 to move up and down, thus adjusting the height of the nails, suitable for bed nets of different heights. The second fixing device 402 and the second clamping assembly 302 located below are fixedly installed. Specifically, the lifting mechanism 430 can be a linear drive mechanism or device such as a screw and nut transmission mechanism or a gear and rack transmission mechanism.

[0060] Of course, it is understandable that only one set of fixing devices 400 can be set as needed, so that the bed net can be flipped up and down and then nailed to the other side; or multiple sets of fixing devices 400 distributed along the first direction can be set.

[0061] Reference Figure 1 In some embodiments of the present invention, a direct push assembly 520 is provided on the opposite side (left side in the figures) of the limiting member 510 of the first conveying platform 100. When the bed net is initially placed on the first conveying platform 100, the direct push assembly 520 pushes the bed net to abut against the limiting member 510, thus initially positioning the entire bed net. The first conveying platform 100 then begins conveying. When the subsequent fixing device 400 nails the bed net, the clamping assembly 300 positions a portion of the bed net. Specifically, the limiting member 510 is a long strip extending along the first direction. The limiting member 510 has a clearance position to prevent the nail gun 420 from passing through, thus avoiding interference with the nailing. The clearance position can be a slot or through hole opened on the limiting member 510.

[0062] Reference Figure 4 In some embodiments, the pressing assembly 300 includes a first driving member 310 and a pressing member 320. The pressing member 320 is used to press the bed net, and the pressing member 320 is provided with a fixing structure for forming a relatively fixed relationship with the bed net. The first driving member 310 is used to drive the pressing member 320 to move toward the limiting member 510 in a direction perpendicular to the first direction. Further, the fixing structure consists of a plurality of needles 360 disposed at the bottom of the pressing member 320.

[0063] Specifically, the pressing assembly 300 also includes a second driving member 330, which can be a cylinder, to drive the pressing member 320 to rise and fall. When the pressing member 320 descends to press the bed net, the needles 360 at its bottom pierce the non-woven fabric of the bed net, thereby fixing the pressing member 320 and the part of the bed net pierced by the needles 360 relatively. Under the action of the first driving member 310, the pressing member 320 drives this part to move towards the limiting member 510. The first driving member 310 can be a cylinder. The output end of the second driving member 330 (i.e., the piston rod of the cylinder) is fixedly connected to the first driving member 310, and the output end of the first driving member 310 is fixedly connected to the pressing member 320. The fixed end of the second driving member 330 (i.e., the cylinder body) is mounted on the first bracket 340.

[0064] Of course, it is understandable that the fixing structure is not limited to the needle 360. In other embodiments, for example, a hook structure can be used to grab the upper end of the bed net spring, or a strong magnet can be used to attract the bed net spring, as long as it can achieve relative fixation with the bed net.

[0065] Reference Figures 4 to 6In some embodiments of the present invention, the clamping assembly 300 includes a guide member 350. Specifically, the guide member 350 is a plate and is fixedly connected to the first bracket 340. The bottom of the guide member 350 is provided with a guide groove 351 that is inclined relative to the first direction. The guide groove 351 is used to cooperate with the side of the frame. Through the guiding effect of the guide groove 351, the side of the frame (specifically the nail fixing position) moves towards the limiting member 510 as the first conveying platform 100 is conveyed forward. Specifically, the guide groove 351 can be roughly funnel-shaped, narrow at the front end and wide at the rear end, and the inner wall of the funnel structure is inclined.

[0066] In this embodiment of the bed net frame-setting device, the pressing component 300 drives the bed net (the part near the nail fixing position) to move towards the limiting component 510 through the pressing component 320, and drives the frame to move towards the limiting component 510 through the guide component 350, thereby positioning and holding the part of the bed net and the side of the frame, ensuring that the clamping nails driven by the fixing device 400 can simultaneously clamp the bed net spring and the frame.

[0067] In some embodiments, the fixing device 400 further includes a clamp 450, which is arranged side by side with the nail gun 420. The clamp 450 is used to pre-clamp and fix the frame and the bed spring before the nail gun 420 is started, so as to prevent the frame or the bed spring from shifting. Then the frame and the bed spring are fixed together by nailing with the nail gun 420.

[0068] In some embodiments, the fixing device 400 further includes a disc feeding mechanism 460, which is disposed at the end of the nail gun 420 and is used to continuously feed nails to the nail gun 420. Since all four sides of the bed net need to be fixed to the frame, a large number of clamping nails are used. The disc feeding mechanism 460 continuously feeds nails, avoiding the need for frequent manual addition of clamping nails, which would affect production efficiency.

[0069] Because non-woven fabric is elastic and the bed netting can deform, the distance between two adjacent bed netting springs is not fixed and may have a small range of errors, which in turn leads to errors in the nailing position.

[0070] Reference Figure 7In some embodiments of the present invention, the bed netting frame-setting device further includes a first detector 610, which controls the operation of the fixing device 400 to improve the accuracy of the nailing position. The first detector 610 is located on the same side as the fixing device 400 and is used to detect a predetermined position of the bed netting spring. The first detector 610 is located upstream of the fixing device 400, and the distance between them is set as a predetermined distance s. The bed netting frame-setting device records the distance the first conveying platform 100 moves the bed netting from the predetermined position of the bed netting spring until the predetermined distance s is reached. Then, the fixing device 400 is activated to fix the bed netting spring to the frame.

[0071] Specifically, in some embodiments, the predetermined location is the outermost edge of the bed net spring. The first detector 610 detects the outermost edge of the bed net spring (the side of the bed net forms continuous peaks and troughs, where the depression between two adjacent bed net springs is trough b, and the outermost edge of the bed net spring is peak a; the outermost edge of the bed net spring is also the nailing fixing position). The first detector 610 can be a distance sensor, and the outermost edge of the bed net spring can be detected by measuring the distance between peak a on the side of the bed net and the first detector 610. When the first detector 610 detects the outermost edge of the first bed net spring, the control module of the bed net framing device, such as a PLC, starts calculating the conveying distance (specifically, it can be obtained through the conveying speed and detection time of the first conveying platform 100) until the predetermined distance s is reached. At this time, the first conveying platform 100 stops, and the fixing device 400 is exactly located at the position corresponding to the outermost edge of the first bed net spring. The fixing device 400 starts nailing, and after nailing is completed, the first conveying platform 100 restarts conveying. Similarly, the fixing device 400 is activated after a predetermined delay for each subsequent bed spring nailing operation, which is detected by the first detector 610 and the operation is initiated after a predetermined delay, thereby improving the accuracy of nailing.

[0072] Of course, it is understood that the predetermined location can also be other edge positions of the bed spring, such as the trough b position.

[0073] Reference Figure 1In some embodiments, the bed netting frame-fitting device further includes a steering and pushing assembly 700, which is located downstream of the fixing device 400. The steering and pushing assembly 700 includes a side pusher 710, which is horizontally rotatable and used to push the bed netting to rotate. Specifically, the side pusher 710 is in the shape of a long strip plate and can rotate around or with a pivot 740. The end of the side pusher 710 away from the pivot 740 is provided with a roller 750 for support. After all the bed netting springs on one side of the bed netting are fixed to the corresponding side of the frame, the bed netting is rotated 90 degrees by horizontally rotating the side pusher 710 of the steering and pushing assembly 700, so that the other side of the bed netting is close to the side where the fixing device 400 is located. Then, the frame and bed netting springs on that side are nailed and fixed.

[0074] In some embodiments, the steering and pushing assembly 700 further includes a second conveying platform 720 and a pressing member 730. The second conveying platform 720 is connected downstream of the first conveying platform 100. The pressing member 730 is movably disposed on the side pusher 710 to apply pressure to the bed net on the second conveying platform 720, keeping the bed net relatively fixed to the side pusher 710. Both remain in contact during rotation, preventing the bed net from detaching from the side pusher 710 and improving the stability of the bed net rotation. Specifically, the pressing member 730 is rotatably connected to the upper end of the side pusher 710, and is driven to rotate by a third driving member 760, which may be a cylinder.

[0075] It is understandable that the first conveyor platform 100 can be extended, and the extended part is equivalent to the second conveyor platform 720.

[0076] Reference Figure 8 In some embodiments of the present invention, the bed netting edging device further includes a pressure roller assembly disposed above the first conveying platform 100. The pressure roller assembly includes at least one pressure roller 620, which is rotatably and vertically oscillating. The pressure roller assembly continuously presses down on the bed net as the first conveying platform 100 conveys the bed net forward. The pressure roller 620 itself is rotatable, and the pressure roller 620 is rotatably connected to the second support 630, forming a small range of vertical oscillations to avoid completely compressing the bed net. Furthermore, the pressure roller 620 is configured to move back and forth.

[0077] Reference Figure 1 and Figure 9In some other embodiments, instead of using a pressure roller assembly, the bed netting frame-forming device includes a lifting conveyor assembly 640 positioned above the first conveying platform 100. The lifting conveyor assembly 640 is vertically oriented and cooperates with the first conveying platform 100 to clamp and convey the bed netting. Specifically, the lifting conveyor assembly 640 can be a conveyor belt, and can be driven to move vertically and vertically via a rack and pinion transmission mechanism, a screw and nut transmission mechanism, or a linear drive mechanism or device such as a cylinder.

[0078] Understandably, in the process of making the frame of the bed net, some only need to fix the upper and lower frames to the bed net, while others also need to fix support springs between the upper and lower frames.

[0079] Reference Figure 14 Multiple support springs are distributed at intervals on the four sides of the bed frame and between the upper and lower frames. At the locations of the support springs, the nail gun 420 of the fixing device 400 fixes the support springs, bed frame springs, and frames together; while between two support springs, the fixing device 400 fixes the bed frame springs to the frames.

[0080] Reference Figure 1 In some embodiments of the present invention, the bed frame making device further includes a support spring feeding device 200, which is disposed on the same side as the fixing device 400. The support spring feeding device 200 includes a first material rack 210 and a material picking mechanism 220. The first material rack 210 is used to store multiple stacked support springs, and the material picking mechanism 220 is used to grab the support springs on the first material rack 210 and place the support springs between the upper and lower frame edges.

[0081] Reference Figure 10 and Figure 11In some embodiments, the material handling mechanism 220 includes a material handling component 221 and a second driving mechanism. The material handling component 221 is used to pick up the support spring on the first material rack 210, and the second driving mechanism is used to drive the material handling component 221 to move from the position of the first material rack 210 to the side of the bed net on the first conveying platform 100. Specifically, the second driving mechanism includes a third support 222, a fourth driving component 223, a fifth driving component 224, and a sixth driving component 225. The fourth driving component 223 can be a belt drive mechanism, the fifth driving component 224 can be a motor, and the sixth driving component 225 can be a cylinder. The fourth driving component 223 drives the third support 222 to move horizontally along the conveying direction parallel to the first conveying platform 100, i.e., the first direction. The fifth driving component 224 is mounted on the third support 222, and the sixth driving component 225 is fixedly connected to the output end of the fifth driving component 224. The material handling component 221 is fixedly connected to the output end of the sixth driving component 225. Thus, after the material picker 221 picks up the support spring, the fourth drive member 223 drives the material picker 221 to move horizontally to the predetermined position, the fifth drive member 224 drives the material picker 221 to rotate 90 degrees so that the support spring is placed vertically, and the sixth drive member 225 drives the material picker 221 to press it against the side of the bed net.

[0082] It is understandable that the material handling component 221 can be a magnetic adsorption component, such as a magnet, an electromagnet, or a metal plate equipped with a magnet or electromagnet, or a negative pressure adsorption component such as a suction cup, or a structure such as a robotic arm or gripper.

[0083] Reference Figure 12 and Figure 13In some embodiments of the present invention, the bed netting frame-making device further includes a frame positioning device 800, which initially positions the frame on the upper and lower surfaces of the bed netting. The frame positioning device 800 includes a frame fixing platform 810, a frame feeding assembly 820, a frame picking assembly 830, and a third fixing device 840. The frame fixing platform 810 is located upstream of the first conveying platform 100. The frame feeding assembly 820 provides the frame; specifically, it uses a conveyor belt for feeding, with multiple spaced baffles on the conveyor belt, confining each frame between adjacent baffles. The frame picking assembly 830 picks up the frame conveyed to the end of the frame feeding assembly 820 and transfers it above the frame fixing platform 810. The third fixing device 840 is used to fix the frame to the bed net springs on the frame fixing platform 810. Specifically, the third fixing device 840 is the same as the fixing device 400, using a nail gun to drive out C-shaped clips. Eight third fixing devices 840 are provided to fix the four corners of the frame to the bed net, so that the frame is initially positioned on the bed net. After the frame is initially positioned, the bed net on the frame fixing platform 810 is conveyed to the first conveying platform 100, where the support springs, frame, and bed net springs on the sides of the bed net are fixed by the clamping assembly 300 and the fixing device 400.

[0084] In a further embodiment, the bed netting frame-forming device further includes a flipping device 900, which flips the bed net vertically so that the upper and lower surfaces of the bed net are placed sequentially on the frame-fixing platform 810, thereby allowing the frame to be placed sequentially on the upper and lower surfaces of the bed net. The flipping device 900 includes a third conveying platform 910 and a flipping mechanism 920. The third conveying platform 910 is located upstream of the frame-fixing platform 810, and the flipping mechanism 920 is located on the third conveying platform 910. After the frame positioning device 800 positions one frame on the upper surface of the bed net, the bed net is conveyed to the third conveying platform 910. On the third conveying platform 910, the flipping mechanism 920 flips the bed net vertically, and then the third conveying platform 910 conveys the bed net back to the frame-fixing platform 810, where the frame positioning device 800 positions the other frame on the bed net.

[0085] This invention provides a method for attaching a frame to a bed net, which uses any of the above-described bed net frame attaching devices to fix the frame to the bed net, including the following steps:

[0086] A bed net with upper and lower frames is conveyed along a first direction via a first conveying platform 100;

[0087] Abutting the bed frame and / or side frame against the limiting member 510;

[0088] The clamping assembly 300 clamps the upper and / or lower surfaces of the bed net and drives the bed net and / or frame to move toward the limiting member 510 in a direction perpendicular to the first direction;

[0089] The first drive mechanism 410 of the fixing device 400 drives the nail gun 420 to move, so that the nail gun 420 is close to one side of the frame and the bed net, and the nail gun 420 fixes the bed net spring to the frame.

[0090] The method for attaching the frame to the bed net in this embodiment uses the aforementioned bed net attaching equipment to fix the frame to the bed net, which greatly improves production efficiency compared to the existing method of manually fixing the frame to the bed net springs with a handheld nail gun.

[0091] More specifically, in some embodiments, the entire border-forming process of the bed netting method is as follows: the bed netting is initially placed on the border fixing platform 810; the border material-grabbing component 830 grabs the border from the border feeding component 820 and transfers the border to the bed netting; the third fixing device 840 initially fixes the border to the bed netting springs; the bed netting on the border fixing platform 810 is conveyed to the upstream third conveying platform 910; the bed netting is flipped up and down by the flipping mechanism 920; the third conveying platform 910 conveys the bed netting back to the border fixing platform 810; another border is fixed to the bed netting by the border material-grabbing component 830 and the third fixing device 840; the bed netting on the border fixing platform 810... The bed netting, with its upper and lower frames, is conveyed to the first conveying platform 100 downstream. On the first conveying platform 100, at least one of the support springs or bed netting springs is fixed to the frame via the support spring feeding device 200, the pressing assembly 300, and the fixing device 400, thus fixing the support springs, frame, and bed netting springs on one side of the bed netting. The bed netting is then rotated 90 degrees horizontally by the steering and pushing assembly 700, bringing the other side of the bed netting closer to the fixing device 400. The frame, support springs, and bed netting springs on that side are then fixed. This process is repeated to fix the support springs, bed netting springs, and frame on all four sides of the bed netting.

[0092] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0093] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A bed webbing hemming apparatus characterized by, The bed net edge framing device comprises: a first conveying platform for conveying the bed net with the frame placed on the upper or lower surface in a first direction; at least one fixing device arranged on one side of the first conveying platform, the fixing device comprising a first driving mechanism and at least one nail gun, the first driving mechanism being used to drive the nail gun to move close to the frame and one side of the bed net, and the nail gun being used to fix the frame and the bed net together; a limiting member arranged on the same side of the fixing device, the limiting member being used to abut against the bed net and / or the frame, the limiting member being in the shape of a long strip and being arranged to extend in the first direction, and the limiting member being provided with an avoiding position for avoiding the nail gun; at least one pressing assembly arranged in the vertical direction of the surface of the bed net with the frame to press the upper and / or lower surface of the bed net and drive the bed net and / or the frame to move towards the limiting member in a direction perpendicular to the first direction; the pressing assembly comprising a first driving member and a pressing member, the pressing member being used to press the bed net, and the first driving member being used to drive the pressing member to move towards the limiting member in a direction perpendicular to the first direction; the pressing assembly comprising a guide member provided with a guide groove inclined relative to the first direction, the guide groove being used to cooperate with the side edge of the frame to make the side edge of the frame move towards the limiting member during the forward conveying of the first conveying platform; the pressing assembly further comprising a second driving member, the second driving member being used to drive the pressing member to ascend and descend, the output end of the second driving member being fixedly connected with the first driving member, the output end of the first driving member being fixedly connected with the pressing member, and the fixed end of the second driving member being mounted on a first support. The fixing device has two groups, i.e., a first fixing device and a second fixing device arranged oppositely in the upper and lower directions; the pressing assembly has two groups, i.e., a first pressing assembly and a second pressing assembly arranged oppositely in the upper and lower directions; and the bed net edge framing device further comprises a lifting mechanism, the lifting mechanism being used to drive the first fixing device and the first pressing assembly to move up and down.

2. The bed sheet hemming apparatus of claim 1, wherein: The pressing member is provided with a fixing structure used to form a relative fixation with the bed net.

3. The bed sheet hemming apparatus of claim 1, wherein: The fixing structure is a plurality of needles arranged on the bottom of the pressing member.

4. The bed sheet hemming apparatus of claim 3, wherein: A straight pushing assembly is arranged on the opposite side of the limiting member of the first conveying platform, the straight pushing assembly being used to push the bed net to abut against the limiting member.

5. The bed sheet hemming apparatus as claimed in claim 1, wherein: The bed net edge framing device further comprises a first detector arranged on the same side of the fixing device, the first detector being used to detect a predetermined position of the bed net spring; the first detector is arranged upstream of the fixing device and at a predetermined distance, the bed net edge framing device recording the distance of the conveying movement of the first conveying platform until the predetermined distance is reached with the predetermined position of the bed net spring as the starting point, and the fixing device is started to fix the bed net spring and the frame.

6. The bed sheet hemming apparatus of claim 1, wherein: The bed net edge framing device further comprises a turning and pushing assembly, the turning and pushing assembly being arranged downstream of the fixing device, the turning and pushing assembly comprising a side pushing member arranged to be horizontally rotatable to push the bed net to rotate.

7. The bed sheet hemming apparatus of claim 1, wherein: ​ 8. The bed sheet hemming apparatus of claim 7, wherein: The turning and pushing assembly further comprises a second conveying platform which is connected downstream of the first conveying platform, and a pressing member which is movably arranged on the side pushing member to apply pressure to the bed net on the second conveying platform.

9. The bed sheet hemming apparatus of claim 1, wherein: The fixing device further comprises a clamping jaw which is arranged parallel to the nail gun, and the clamping jaw is used to clamp and fix the frame and the bed net spring before the nail gun is started.

10. The bed sheet hemming apparatus of claim 1, wherein: The fixing device further comprises a disc feeding mechanism which is arranged at the end of the nail gun, and the disc feeding mechanism is used to continuously feed nails to the nail gun.

11. The bed sheet hemming apparatus as claimed in claim 1, wherein: The bed net bordering device further comprises a press roller assembly which is arranged above the first conveying platform, and the press roller assembly comprises at least one press roller which is rotatably and up-and-down swingably arranged.

12. The bed sheet hemming apparatus of claim 1, wherein: The bed net bordering device further comprises a lifting conveying assembly which is arranged above the first conveying platform, and the lifting conveying assembly is up-and-down movably arranged, and the lifting conveying assembly cooperates with the first conveying platform to clamp and convey the bed net.

13. The bed sheet hemming apparatus according to any one of claims 1 to 12, wherein: The bed net bordering device further comprises a supporting spring feeding device which is arranged on the same side of the fixing device, and the supporting spring feeding device comprises a first rack and a taking mechanism, the first rack is used to store supporting springs, and the taking mechanism is used to grab the supporting spring on the first rack and place the supporting spring between the upper and lower frames.

14. The bed sheet hemming apparatus of claim 13, wherein: The taking mechanism comprises a taking member and a second driving mechanism, the taking member is used to suck the supporting spring on the first rack, and the second driving mechanism is used to drive the taking member to move from the position of the first rack to the side of the bed net on the first conveying platform.

15. The bed sheet hemming apparatus according to any one of claims 1 to 12, wherein, The bed net bordering device further comprises a frame positioning device which comprises: a frame fixing platform which is arranged upstream of the first conveying platform; a frame feeding assembly which is used to provide frames; a frame taking assembly which is used to grab the frame on the frame feeding assembly and transfer the frame above the frame fixing platform; and a third fixing device which is used to fix the frame with the bed net spring on the frame fixing platform.

16. The bed sheet hemming apparatus of claim 15, wherein: The bed net bordering device further comprises a turnover device which comprises a third conveying platform and a turnover mechanism, the third conveying platform is arranged upstream of the frame fixing platform, and the turnover mechanism is arranged on the third conveying platform to turn the bed net upside down.

17. A method of hemming a bed net, characterized by The bed net bordering device according to any one of claims 1 to 16 is used to fix the frame on the bed net, and comprises the following steps: conveying the bed net with the frame arranged upside down by the first conveying platform in a first direction; abutting the bed net and / or the frame with a limiting member; The pressing assembly presses the upper surface and / or the lower surface of the bed net and drives the bed net and / or the frame to move towards the limiting member in a direction perpendicular to the first direction; The first driving mechanism of the fixing device drives the nail gun to move, so that the nail gun is close to one side of the frame and the bed net, and the nail gun fixes the bed net spring and the frame. The bed net bordering device further comprises a press roller assembly which is arranged above the first conveying platform, and the press roller assembly comprises at least one press roller which is rotatably and up-and-down swingably arranged. The bed net bordering device further comprises a lifting conveying assembly which is arranged above the first conveying platform, and the lifting conveying assembly is up-and-down movably arranged, and the lifting conveying assembly cooperates with the first conveying platform to clamp and convey the bed net. The bed net bordering device further comprises a supporting spring feeding device which is arranged on the same side of the fixing device, and the supporting spring feeding device comprises a first rack and a taking mechanism, the first rack is used to store supporting springs, and the taking mechanism is used to grab the supporting spring on the first rack and place the supporting spring between the upper and lower frames. The taking mechanism comprises a taking member and a second driving mechanism, the taking member is used to suck the supporting spring on the first rack, and the second driving mechanism is used to drive the taking member to move from the position of the first rack to the side of the bed net on the first conveying platform. The bed net bordering device further comprises a frame positioning device which comprises: a frame fixing platform which is arranged upstream of the first conveying platform; a frame feeding assembly which is used to provide frames; a frame taking assembly which is used to grab the frame on the frame feeding assembly and transfer the frame above the frame fixing platform; and a third fixing device which is used to fix the frame with the bed net spring on the frame fixing platform. The bed net bordering device further comprises a turnover device which comprises a third conveying platform and a turnover mechanism, the third conveying platform is arranged upstream of the frame fixing platform, and the turnover mechanism is arranged on the third conveying platform to turn the bed net upside down. The bed net bordering device according to any one of claims 1 to 16 is used to fix the frame on the bed net, and comprises the following steps: conveying the bed net with the frame arranged upside down by the first conveying platform in a first direction; abutting the bed net and / or the frame with a limiting member; The pressing assembly presses the upper surface and / or the lower surface of the bed net and drives the bed net and / or the frame to move towards the limiting member in a direction perpendicular to the first direction; The first driving mechanism of the fixing device drives the nail gun to move, so that the nail gun is close to one side of the frame and the bed net, and the nail gun fixes the bed net spring and the frame.

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